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fresh audaspace from trunk

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This commit is contained in:
Joseph Eagar 2010-09-04 18:53:48 +00:00
parent 2c7e384f1a
commit 0a6e7fbfc6
161 changed files with 21392 additions and 0 deletions
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72
intern/audaspace/CMakeLists.txt Normal file
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# $Id$
# ***** BEGIN LGPL LICENSE BLOCK *****
#
# Copyright 2009 Jörg Hermann Müller
#
# This file is part of AudaSpace.
#
# AudaSpace is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# AudaSpace is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
#
# ***** END LGPL LICENSE BLOCK *****
SET(INC . intern FX SRC ${PTHREADS_INC} ${LIBSAMPLERATE_INC})
FILE(GLOB SRC intern/*.cpp intern/*.h FX/*.cpp SRC/*.cpp)
IF(WITH_FFMPEG)
SET(INC ${INC} ffmpeg ${FFMPEG_INC})
FILE(GLOB FFMPEGSRC ffmpeg/*.cpp)
ADD_DEFINITIONS(-DWITH_FFMPEG)
ENDIF(WITH_FFMPEG)
IF(WITH_SDL)
SET(INC ${INC} SDL ${SDL_INCLUDE_DIR})
FILE(GLOB SDLSRC SDL/*.cpp)
ADD_DEFINITIONS(-DWITH_SDL)
ENDIF(WITH_SDL)
IF(WITH_OPENAL)
SET(INC ${INC} OpenAL ${OPENAL_INCLUDE_DIR})
FILE(GLOB OPENALSRC OpenAL/*.cpp)
ADD_DEFINITIONS(-DWITH_OPENAL)
ENDIF(WITH_OPENAL)
IF(WITH_JACK)
SET(INC ${INC} jack ${JACK_INC})
FILE(GLOB JACKSRC jack/*.cpp)
ADD_DEFINITIONS(-DWITH_JACK)
ENDIF(WITH_JACK)
IF(WITH_SNDFILE)
SET(INC ${INC} sndfile ${SNDFILE_INC})
FILE(GLOB SNDFILESRC sndfile/*.cpp)
ADD_DEFINITIONS(-DWITH_SNDFILE)
ENDIF(WITH_SNDFILE)
#IF(WITH_FFTW3)
# SET(INC ${INC} fftw ${FFTW3_INC})
# FILE(GLOB FFTW3SRC fftw/*.cpp)
# ADD_DEFINITIONS(-DWITH_FFTW3)
#ENDIF(WITH_FFTW3)
IF(WITH_PYTHON)
SET(INC ${INC} Python ${PYTHON_INC})
FILE(GLOB PYTHONSRC Python/*.cpp)
ELSE(WITH_PYTHON)
ADD_DEFINITIONS(-DDISABLE_PYTHON)
ENDIF(WITH_PYTHON)
SET(SRC ${SRC} ${FFMPEGSRC} ${SNDFILESRC} ${FFTW3SRC} ${SDLSRC} ${OPENALSRC} ${JACKSRC} ${PYTHONSRC})
BLENDERLIB(bf_intern_audaspace "${SRC}" "${INC}")

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intern/audaspace/COPYING Normal file
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USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
0. Additional Definitions.
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
Defining a subclass of a class defined by the Library is deemed a mode
of using an interface provided by the Library.
A "Combined Work" is a work produced by combining or linking an
Application with the Library. The particular version of the Library
with which the Combined Work was made is also called the "Linked
Version".
The "Minimal Corresponding Source" for a Combined Work means the
Corresponding Source for the Combined Work, excluding any source code
for portions of the Combined Work that, considered in isolation, are
based on the Application, and not on the Linked Version.
The "Corresponding Application Code" for a Combined Work means the
object code and/or source code for the Application, including any data
and utility programs needed for reproducing the Combined Work from the
Application, but excluding the System Libraries of the Combined Work.
1. Exception to Section 3 of the GNU GPL.
You may convey a covered work under sections 3 and 4 of this License
without being bound by section 3 of the GNU GPL.
2. Conveying Modified Versions.
If you modify a copy of the Library, and, in your modifications, a
facility refers to a function or data to be supplied by an Application
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a) under this License, provided that you make a good faith effort to
ensure that, in the event an Application does not supply the
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whatever part of its purpose remains meaningful, or
b) under the GNU GPL, with none of the additional permissions of
this License applicable to that copy.
3. Object Code Incorporating Material from Library Header Files.
The object code form of an Application may incorporate material from
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You may convey a Combined Work under terms of your choice that,
taken together, effectively do not restrict modification of the
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c) For a Combined Work that displays copyright notices during
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d) Do one of the following:
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for conveying Corresponding Source.)
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Library side by side in a single library together with other library
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choice, if you do both of the following:
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on the Library, uncombined with any other library facilities,
conveyed under the terms of this License.
b) Give prominent notice with the combined library that part of it
is a work based on the Library, and explaining where to find the
accompanying uncombined form of the same work.
6. Revised Versions of the GNU Lesser General Public License.
The Free Software Foundation may publish revised and/or new versions
of the GNU Lesser General Public License from time to time. Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the
Library as you received it specifies that a certain numbered version
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Library.

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_AccumulatorFactory.h"
#include "AUD_CallbackIIRFilterReader.h"
sample_t accumulatorFilterAdditive(AUD_CallbackIIRFilterReader* reader, void* useless)
{
float in = reader->x(0);
float lastin = reader->x(-1);
float out = reader->y(-1) + in - lastin;
if(in > lastin)
out += in - lastin;
return out;
}
sample_t accumulatorFilter(AUD_CallbackIIRFilterReader* reader, void* useless)
{
float in = reader->x(0);
float lastin = reader->x(-1);
float out = reader->y(-1);
if(in > lastin)
out += in - lastin;
return out;
}
AUD_AccumulatorFactory::AUD_AccumulatorFactory(AUD_IFactory* factory,
bool additive) :
AUD_EffectFactory(factory),
m_additive(additive)
{
}
AUD_IReader* AUD_AccumulatorFactory::createReader() const
{
return new AUD_CallbackIIRFilterReader(getReader(), 2, 2,
m_additive ? accumulatorFilterAdditive : accumulatorFilter);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_ACCUMULATORFACTORY
#define AUD_ACCUMULATORFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory creates an accumulator reader.
*/
class AUD_AccumulatorFactory : public AUD_EffectFactory
{
private:
/**
* Whether the accumulator is additive.
*/
const bool m_additive;
// hide copy constructor and operator=
AUD_AccumulatorFactory(const AUD_AccumulatorFactory&);
AUD_AccumulatorFactory& operator=(const AUD_AccumulatorFactory&);
public:
/**
* Creates a new accumulator factory.
* \param factory The input factory.
* \param additive Whether the accumulator is additive.
*/
AUD_AccumulatorFactory(AUD_IFactory* factory, bool additive = false);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_ACCUMULATORFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_BaseIIRFilterReader.h"
#include <cstring>
#define CC m_channels + m_channel
AUD_BaseIIRFilterReader::AUD_BaseIIRFilterReader(AUD_IReader* reader, int in,
int out) :
AUD_EffectReader(reader),
m_channels(reader->getSpecs().channels),
m_xlen(in), m_ylen(out),
m_xpos(0), m_ypos(0), m_channel(0)
{
m_x = new sample_t[in * m_channels];
m_y = new sample_t[out * m_channels];
memset(m_x, 0, sizeof(sample_t) * in * m_channels);
memset(m_y, 0, sizeof(sample_t) * out * m_channels);
}
AUD_BaseIIRFilterReader::~AUD_BaseIIRFilterReader()
{
delete[] m_x;
delete[] m_y;
}
void AUD_BaseIIRFilterReader::read(int & length, sample_t* & buffer)
{
sample_t* buf;
int samplesize = AUD_SAMPLE_SIZE(m_reader->getSpecs());
m_reader->read(length, buf);
if(m_buffer.getSize() < length * samplesize)
m_buffer.resize(length * samplesize);
buffer = m_buffer.getBuffer();
for(m_channel = 0; m_channel < m_channels; m_channel++)
{
for(int i = 0; i < length; i++)
{
m_x[m_xpos * CC] = buf[i * CC];
m_y[m_ypos * CC] = buffer[i * CC] = filter();
m_xpos = (m_xpos + 1) % m_xlen;
m_ypos = (m_ypos + 1) % m_ylen;
}
}
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_BASEIIRFILTERREADER
#define AUD_BASEIIRFILTERREADER
#include "AUD_EffectReader.h"
#include "AUD_Buffer.h"
/**
* This class is a base class for infinite impulse response filters.
*/
class AUD_BaseIIRFilterReader : public AUD_EffectReader
{
private:
/**
* Channel count.
*/
const int m_channels;
/**
* Length of input samples needed.
*/
const int m_xlen;
/**
* Length of output samples needed.
*/
const int m_ylen;
/**
* The playback buffer.
*/
AUD_Buffer m_buffer;
/**
* The last in samples array.
*/
sample_t* m_x;
/**
* The last out samples array.
*/
sample_t* m_y;
/**
* Position of the current input sample in the input array.
*/
int m_xpos;
/**
* Position of the current output sample in the output array.
*/
int m_ypos;
/**
* Current channel.
*/
int m_channel;
// hide copy constructor and operator=
AUD_BaseIIRFilterReader(const AUD_BaseIIRFilterReader&);
AUD_BaseIIRFilterReader& operator=(const AUD_BaseIIRFilterReader&);
protected:
/**
* Creates a new base IIR filter reader.
* \param reader The reader to read from.
* \param in The count of past input samples needed.
* \param out The count of past output samples needed.
*/
AUD_BaseIIRFilterReader(AUD_IReader* reader, int in, int out);
public:
inline sample_t x(int pos)
{
return m_x[(m_xpos + pos + m_xlen) % m_xlen * m_channels + m_channel];
}
inline sample_t y(int pos)
{
return m_y[(m_ypos + pos + m_ylen) % m_ylen * m_channels + m_channel];
}
virtual ~AUD_BaseIIRFilterReader();
virtual void read(int & length, sample_t* & buffer);
virtual sample_t filter()=0;
};
#endif //AUD_BASEIIRFILTERREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_ButterworthFactory.h"
#include "AUD_IIRFilterReader.h"
#include <cmath>
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#define BWPB41 0.76536686473
#define BWPB42 1.84775906502
AUD_ButterworthFactory::AUD_ButterworthFactory(AUD_IFactory* factory,
float frequency) :
AUD_EffectFactory(factory),
m_frequency(frequency)
{
}
AUD_IReader* AUD_ButterworthFactory::createReader() const
{
AUD_IReader* reader = getReader();
// calculate coefficients
float omega = 2 * tan(m_frequency * M_PI / reader->getSpecs().rate);
float o2 = omega * omega;
float o4 = o2 * o2;
float x1 = o2 + 2 * BWPB41 * omega + 4;
float x2 = o2 + 2 * BWPB42 * omega + 4;
float y1 = o2 - 2 * BWPB41 * omega + 4;
float y2 = o2 - 2 * BWPB42 * omega + 4;
float o228 = 2 * o2 - 8;
float norm = x1 * x2;
std::vector<float> a, b;
a.push_back(1);
a.push_back((x1 + x2) * o228 / norm);
a.push_back((x1 * y2 + x2 * y1 + o228 * o228) / norm);
a.push_back((y1 + y2) * o228 / norm);
a.push_back(y1 * y2 / norm);
b.push_back(o4 / norm);
b.push_back(4 * o4 / norm);
b.push_back(6 * o4 / norm);
b.push_back(b[1]);
b.push_back(b[0]);
return new AUD_IIRFilterReader(reader, b, a);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_BUTTERWORTHFACTORY
#define AUD_BUTTERWORTHFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory creates a butterworth filter reader.
*/
class AUD_ButterworthFactory : public AUD_EffectFactory
{
private:
/**
* The attack value in seconds.
*/
const float m_frequency;
// hide copy constructor and operator=
AUD_ButterworthFactory(const AUD_ButterworthFactory&);
AUD_ButterworthFactory& operator=(const AUD_ButterworthFactory&);
public:
/**
* Creates a new butterworth factory.
* \param factory The input factory.
* \param frequency The cutoff frequency.
*/
AUD_ButterworthFactory(AUD_IFactory* factory, float frequency);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_BUTTERWORTHFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_CallbackIIRFilterReader.h"
AUD_CallbackIIRFilterReader::AUD_CallbackIIRFilterReader(AUD_IReader* reader,
int in, int out,
doFilterIIR doFilter,
endFilterIIR endFilter,
void* data) :
AUD_BaseIIRFilterReader(reader, in, out),
m_filter(doFilter), m_endFilter(endFilter), m_data(data)
{
}
AUD_CallbackIIRFilterReader::~AUD_CallbackIIRFilterReader()
{
if(m_endFilter)
m_endFilter(m_data);
}
sample_t AUD_CallbackIIRFilterReader::filter()
{
return m_filter(this, m_data);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_CALLBACKIIRFILTERREADER
#define AUD_CALLBACKIIRFILTERREADER
#include "AUD_BaseIIRFilterReader.h"
#include "AUD_Buffer.h"
class AUD_CallbackIIRFilterReader;
typedef sample_t (*doFilterIIR)(AUD_CallbackIIRFilterReader*, void*);
typedef void (*endFilterIIR)(void*);
/**
* This class provides an interface for infinite impulse response filters via a
* callback filter function.
*/
class AUD_CallbackIIRFilterReader : public AUD_BaseIIRFilterReader
{
private:
/**
* Filter function.
*/
const doFilterIIR m_filter;
/**
* End filter function.
*/
const endFilterIIR m_endFilter;
/**
* Data pointer.
*/
void* m_data;
// hide copy constructor and operator=
AUD_CallbackIIRFilterReader(const AUD_CallbackIIRFilterReader&);
AUD_CallbackIIRFilterReader& operator=(const AUD_CallbackIIRFilterReader&);
public:
/**
* Creates a new callback IIR filter reader.
* \param reader The reader to read from.
* \param in The count of past input samples needed.
* \param out The count of past output samples needed.
* \param doFilter The filter callback.
* \param endFilter The finishing callback.
* \param data Data pointer for the callbacks.
*/
AUD_CallbackIIRFilterReader(AUD_IReader* reader, int in, int out,
doFilterIIR doFilter,
endFilterIIR endFilter = 0,
void* data = 0);
virtual ~AUD_CallbackIIRFilterReader();
virtual sample_t filter();
};
#endif //AUD_CALLBACKIIRFILTERREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_DelayFactory.h"
#include "AUD_DelayReader.h"
#include "AUD_Space.h"
AUD_DelayFactory::AUD_DelayFactory(AUD_IFactory* factory, float delay) :
AUD_EffectFactory(factory),
m_delay(delay)
{
}
float AUD_DelayFactory::getDelay() const
{
return m_delay;
}
AUD_IReader* AUD_DelayFactory::createReader() const
{
return new AUD_DelayReader(getReader(), m_delay);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_DELAYFACTORY
#define AUD_DELAYFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory plays another factory delayed.
*/
class AUD_DelayFactory : public AUD_EffectFactory
{
private:
/**
* The delay in samples.
*/
const float m_delay;
// hide copy constructor and operator=
AUD_DelayFactory(const AUD_DelayFactory&);
AUD_DelayFactory& operator=(const AUD_DelayFactory&);
public:
/**
* Creates a new delay factory.
* \param factory The input factory.
* \param delay The desired delay in seconds.
*/
AUD_DelayFactory(AUD_IFactory* factory, float delay = 0);
/**
* Returns the delay in seconds.
*/
float getDelay() const;
virtual AUD_IReader* createReader() const;
};
#endif //AUD_DELAYFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_DelayReader.h"
#include <cstring>
AUD_DelayReader::AUD_DelayReader(AUD_IReader* reader, float delay) :
AUD_EffectReader(reader),
m_delay(int(delay * reader->getSpecs().rate)),
m_remdelay(int(delay * reader->getSpecs().rate)),
m_empty(true)
{
}
void AUD_DelayReader::seek(int position)
{
if(position < m_delay)
{
m_remdelay = m_delay - position;
m_reader->seek(0);
}
else
{
m_remdelay = 0;
m_reader->seek(position - m_delay);
}
}
int AUD_DelayReader::getLength() const
{
int len = m_reader->getLength();
if(len < 0)
return len;
return len + m_delay;
}
int AUD_DelayReader::getPosition() const
{
if(m_remdelay > 0)
return m_delay - m_remdelay;
return m_reader->getPosition() + m_delay;
}
void AUD_DelayReader::read(int & length, sample_t* & buffer)
{
if(m_remdelay > 0)
{
AUD_Specs specs = m_reader->getSpecs();
int samplesize = AUD_SAMPLE_SIZE(specs);
if(m_buffer.getSize() < length * samplesize)
{
m_buffer.resize(length * samplesize);
m_empty = false;
}
buffer = m_buffer.getBuffer();
if(length > m_remdelay)
{
if(!m_empty)
memset(buffer, 0, m_remdelay * samplesize);
int len = length - m_remdelay;
sample_t* buf;
m_reader->read(len, buf);
memcpy(buffer + m_remdelay * specs.channels,
buf, len * samplesize);
if(len < length-m_remdelay)
length = m_remdelay + len;
m_remdelay = 0;
m_empty = false;
}
else
{
if(!m_empty)
{
memset(buffer, 0, length * samplesize);
m_empty = true;
}
m_remdelay -= length;
}
}
else
m_reader->read(length, buffer);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_DELAYREADER
#define AUD_DELAYREADER
#include "AUD_EffectReader.h"
#include "AUD_Buffer.h"
/**
* This class reads another reader and changes it's delay.
*/
class AUD_DelayReader : public AUD_EffectReader
{
private:
/**
* The playback buffer.
*/
AUD_Buffer m_buffer;
/**
* The delay level.
*/
const int m_delay;
/**
* The remaining delay for playback.
*/
int m_remdelay;
/**
* Whether the buffer is currently filled with zeros.
*/
bool m_empty;
// hide copy constructor and operator=
AUD_DelayReader(const AUD_DelayReader&);
AUD_DelayReader& operator=(const AUD_DelayReader&);
public:
/**
* Creates a new delay reader.
* \param reader The reader to read from.
* \param delay The delay in seconds.
*/
AUD_DelayReader(AUD_IReader* reader, float delay);
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_DELAYREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_DoubleFactory.h"
#include "AUD_DoubleReader.h"
AUD_DoubleFactory::AUD_DoubleFactory(AUD_IFactory* factory1, AUD_IFactory* factory2) :
m_factory1(factory1), m_factory2(factory2)
{
}
AUD_IReader* AUD_DoubleFactory::createReader() const
{
AUD_IReader* reader1 = m_factory1->createReader();
AUD_IReader* reader2;
try
{
reader2 = m_factory2->createReader();
}
catch(AUD_Exception&)
{
delete reader1;
throw;
}
return new AUD_DoubleReader(reader1, reader2);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_DOUBLEFACTORY
#define AUD_DOUBLEFACTORY
#include "AUD_IFactory.h"
/**
* This factory plays two other factories behind each other.
* \note Readers from the underlying factories must have the same sample rate and channel count.
*/
class AUD_DoubleFactory : public AUD_IFactory
{
private:
/**
* First played factory.
*/
AUD_IFactory* m_factory1;
/**
* Second played factory.
*/
AUD_IFactory* m_factory2;
// hide copy constructor and operator=
AUD_DoubleFactory(const AUD_DoubleFactory&);
AUD_DoubleFactory& operator=(const AUD_DoubleFactory&);
public:
/**
* Creates a new double factory.
* \param factory1 The first input factory.
* \param factory2 The second input factory.
*/
AUD_DoubleFactory(AUD_IFactory* factory1, AUD_IFactory* factory2);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_DOUBLEFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_DoubleReader.h"
#include <cstring>
static const char* specs_error = "AUD_DoubleReader: Both readers have to have "
"the same specs.";
AUD_DoubleReader::AUD_DoubleReader(AUD_IReader* reader1,
AUD_IReader* reader2) :
m_reader1(reader1), m_reader2(reader2), m_finished1(false)
{
AUD_Specs s1, s2;
s1 = reader1->getSpecs();
s2 = reader2->getSpecs();
if(memcmp(&s1, &s2, sizeof(AUD_Specs)) != 0)
{
delete reader1;
delete reader2;
AUD_THROW(AUD_ERROR_SPECS, specs_error);
}
}
AUD_DoubleReader::~AUD_DoubleReader()
{
delete m_reader1;
delete m_reader2;
}
bool AUD_DoubleReader::isSeekable() const
{
return m_reader1->isSeekable() && m_reader2->isSeekable();
}
void AUD_DoubleReader::seek(int position)
{
m_reader1->seek(position);
int pos1 = m_reader1->getPosition();
if((m_finished1 = (pos1 < position)))
m_reader2->seek(position - pos1);
else
m_reader2->seek(0);
}
int AUD_DoubleReader::getLength() const
{
int len1 = m_reader1->getLength();
int len2 = m_reader2->getLength();
if(len1 < 0 || len2 < 0)
return -1;
return len1 + len2;
}
int AUD_DoubleReader::getPosition() const
{
return m_reader1->getPosition() + m_reader2->getPosition();
}
AUD_Specs AUD_DoubleReader::getSpecs() const
{
return m_reader1->getSpecs();
}
void AUD_DoubleReader::read(int & length, sample_t* & buffer)
{
if(!m_finished1)
{
int len = length;
m_reader1->read(len, buffer);
if(len < length)
{
AUD_Specs specs = m_reader1->getSpecs();
int samplesize = AUD_SAMPLE_SIZE(specs);
if(m_buffer.getSize() < length * samplesize)
m_buffer.resize(length * samplesize);
sample_t* buf = buffer;
buffer = m_buffer.getBuffer();
memcpy(buffer, buf, len * samplesize);
len = length - len;
length -= len;
m_reader2->read(len, buf);
memcpy(buffer + length * specs.channels, buf,
len * samplesize);
length += len;
m_finished1 = true;
}
}
else
{
m_reader2->read(length, buffer);
}
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_DOUBLEREADER
#define AUD_DOUBLEREADER
#include "AUD_IReader.h"
#include "AUD_Buffer.h"
/**
* This reader plays two readers with the same specs sequently.
*/
class AUD_DoubleReader : public AUD_IReader
{
private:
/**
* The first reader.
*/
AUD_IReader* m_reader1;
/**
* The second reader.
*/
AUD_IReader* m_reader2;
/**
* Whether we've reached the end of the first reader.
*/
bool m_finished1;
/**
* The playback buffer for the intersecting part.
*/
AUD_Buffer m_buffer;
// hide copy constructor and operator=
AUD_DoubleReader(const AUD_DoubleReader&);
AUD_DoubleReader& operator=(const AUD_DoubleReader&);
public:
/**
* Creates a new ping pong reader.
* \param reader1 The first reader to read from.
* \param reader2 The second reader to read from.
* \exception AUD_Exception Thrown if the specs from the readers differ.
*/
AUD_DoubleReader(AUD_IReader* reader1, AUD_IReader* reader2);
/**
* Destroys the reader.
*/
virtual ~AUD_DoubleReader();
virtual bool isSeekable() const;
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual AUD_Specs getSpecs() const;
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_DOUBLEREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_EffectFactory.h"
#include "AUD_IReader.h"
AUD_EffectFactory::AUD_EffectFactory(AUD_IFactory* factory)
{
m_factory = factory;
}
AUD_EffectFactory::~AUD_EffectFactory()
{
}
AUD_IFactory* AUD_EffectFactory::getFactory() const
{
return m_factory;
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_EFFECTFACTORY
#define AUD_EFFECTFACTORY
#include "AUD_IFactory.h"
/**
* This factory is a base class for all effect factories that take one other
* factory as input.
*/
class AUD_EffectFactory : public AUD_IFactory
{
private:
// hide copy constructor and operator=
AUD_EffectFactory(const AUD_EffectFactory&);
AUD_EffectFactory& operator=(const AUD_EffectFactory&);
protected:
/**
* If there is no reader it is created out of this factory.
*/
AUD_IFactory* m_factory;
/**
* Returns the reader created out of the factory.
* This method can be used for the createReader function of the implementing
* classes.
* \return The reader created out of the factory.
*/
inline AUD_IReader* getReader() const
{
return m_factory->createReader();
}
public:
/**
* Creates a new factory.
* \param factory The input factory.
*/
AUD_EffectFactory(AUD_IFactory* factory);
/**
* Destroys the factory.
*/
virtual ~AUD_EffectFactory();
/**
* Returns the saved factory.
* \return The factory or NULL if there has no factory been saved.
*/
AUD_IFactory* getFactory() const;
};
#endif //AUD_EFFECTFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_EffectReader.h"
AUD_EffectReader::AUD_EffectReader(AUD_IReader* reader)
{
m_reader = reader;
}
AUD_EffectReader::~AUD_EffectReader()
{
delete m_reader;
}
bool AUD_EffectReader::isSeekable() const
{
return m_reader->isSeekable();
}
void AUD_EffectReader::seek(int position)
{
m_reader->seek(position);
}
int AUD_EffectReader::getLength() const
{
return m_reader->getLength();
}
int AUD_EffectReader::getPosition() const
{
return m_reader->getPosition();
}
AUD_Specs AUD_EffectReader::getSpecs() const
{
return m_reader->getSpecs();
}
void AUD_EffectReader::read(int & length, sample_t* & buffer)
{
m_reader->read(length, buffer);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_EFFECTREADER
#define AUD_EFFECTREADER
#include "AUD_IReader.h"
/**
* This reader is a base class for all effect readers that take one other reader
* as input.
*/
class AUD_EffectReader : public AUD_IReader
{
private:
// hide copy constructor and operator=
AUD_EffectReader(const AUD_EffectReader&);
AUD_EffectReader& operator=(const AUD_EffectReader&);
protected:
/**
* The reader to read from.
*/
AUD_IReader* m_reader;
public:
/**
* Creates a new effect reader.
* \param reader The reader to read from.
*/
AUD_EffectReader(AUD_IReader* reader);
/**
* Destroys the reader.
*/
virtual ~AUD_EffectReader();
virtual bool isSeekable() const;
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual AUD_Specs getSpecs() const;
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_EFFECTREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_EnvelopeFactory.h"
#include "AUD_CallbackIIRFilterReader.h"
#include <cmath>
struct EnvelopeParameters
{
float attack;
float release;
float threshold;
float arthreshold;
};
sample_t envelopeFilter(AUD_CallbackIIRFilterReader* reader, EnvelopeParameters* param)
{
float in = fabs(reader->x(0));
float out = reader->y(-1);
if(in < param->threshold)
in = 0.0f;
return (in > out ? param->attack : param->release) * (out - in) + in;
}
void endEnvelopeFilter(EnvelopeParameters* param)
{
delete param;
}
AUD_EnvelopeFactory::AUD_EnvelopeFactory(AUD_IFactory* factory, float attack,
float release, float threshold,
float arthreshold) :
AUD_EffectFactory(factory),
m_attack(attack),
m_release(release),
m_threshold(threshold),
m_arthreshold(arthreshold)
{
}
AUD_IReader* AUD_EnvelopeFactory::createReader() const
{
AUD_IReader* reader = getReader();
EnvelopeParameters* param = new EnvelopeParameters();
param->arthreshold = m_arthreshold;
param->attack = pow(m_arthreshold, 1.0f/(reader->getSpecs().rate * m_attack));
param->release = pow(m_arthreshold, 1.0f/(reader->getSpecs().rate * m_release));
param->threshold = m_threshold;
return new AUD_CallbackIIRFilterReader(reader, 1, 2,
(doFilterIIR) envelopeFilter,
(endFilterIIR) endEnvelopeFilter,
param);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_ENVELOPEFACTORY
#define AUD_ENVELOPEFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory creates an envelope follower reader.
*/
class AUD_EnvelopeFactory : public AUD_EffectFactory
{
private:
/**
* The attack value in seconds.
*/
const float m_attack;
/**
* The release value in seconds.
*/
const float m_release;
/**
* The threshold value.
*/
const float m_threshold;
/**
* The attack/release threshold value.
*/
const float m_arthreshold;
// hide copy constructor and operator=
AUD_EnvelopeFactory(const AUD_EnvelopeFactory&);
AUD_EnvelopeFactory& operator=(const AUD_EnvelopeFactory&);
public:
/**
* Creates a new envelope factory.
* \param factory The input factory.
* \param attack The attack value in seconds.
* \param release The release value in seconds.
* \param threshold The threshold value.
* \param arthreshold The attack/release threshold value.
*/
AUD_EnvelopeFactory(AUD_IFactory* factory, float attack, float release,
float threshold, float arthreshold);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_ENVELOPEFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_FaderFactory.h"
#include "AUD_FaderReader.h"
AUD_FaderFactory::AUD_FaderFactory(AUD_IFactory* factory, AUD_FadeType type,
float start, float length) :
AUD_EffectFactory(factory),
m_type(type),
m_start(start),
m_length(length)
{
}
AUD_FadeType AUD_FaderFactory::getType() const
{
return m_type;
}
float AUD_FaderFactory::getStart() const
{
return m_start;
}
float AUD_FaderFactory::getLength() const
{
return m_length;
}
AUD_IReader* AUD_FaderFactory::createReader() const
{
return new AUD_FaderReader(getReader(), m_type, m_start, m_length);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_FADERFACTORY
#define AUD_FADERFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory fades another factory.
* If the fading type is AUD_FADE_IN, everything before the fading start will be
* silenced, for AUD_FADE_OUT that's true for everything after fading ends.
*/
class AUD_FaderFactory : public AUD_EffectFactory
{
private:
/**
* The fading type.
*/
const AUD_FadeType m_type;
/**
* The fading start.
*/
const float m_start;
/**
* The fading length.
*/
const float m_length;
// hide copy constructor and operator=
AUD_FaderFactory(const AUD_FaderFactory&);
AUD_FaderFactory& operator=(const AUD_FaderFactory&);
public:
/**
* Creates a new fader factory.
* \param factory The input factory.
* \param type The fading type.
* \param start The time where fading should start in seconds.
* \param length How long fading should last in seconds.
*/
AUD_FaderFactory(AUD_IFactory* factory,
AUD_FadeType type = AUD_FADE_IN,
float start = 0.0f, float length = 1.0f);
/**
* Returns the fading type.
*/
AUD_FadeType getType() const;
/**
* Returns the fading start.
*/
float getStart() const;
/**
* Returns the fading length.
*/
float getLength() const;
virtual AUD_IReader* createReader() const;
};
#endif //AUD_FADERFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_FaderReader.h"
#include <cstring>
AUD_FaderReader::AUD_FaderReader(AUD_IReader* reader, AUD_FadeType type,
float start,float length) :
AUD_EffectReader(reader),
m_type(type),
m_start(start),
m_length(length),
m_empty(true)
{
}
void AUD_FaderReader::read(int & length, sample_t* & buffer)
{
int position = m_reader->getPosition();
AUD_Specs specs = m_reader->getSpecs();
int samplesize = AUD_SAMPLE_SIZE(specs);
m_reader->read(length, buffer);
if((position + length) / (float)specs.rate <= m_start)
{
if(m_type != AUD_FADE_OUT)
{
if(m_buffer.getSize() < length * samplesize)
{
m_buffer.resize(length * samplesize);
m_empty = false;
}
buffer = m_buffer.getBuffer();
if(!m_empty)
{
memset(buffer, 0, length * samplesize);
m_empty = true;
}
}
}
else if(position / (float)specs.rate >= m_start+m_length)
{
if(m_type == AUD_FADE_OUT)
{
if(m_buffer.getSize() < length * samplesize)
{
m_buffer.resize(length * samplesize);
m_empty = false;
}
buffer = m_buffer.getBuffer();
if(!m_empty)
{
memset(buffer, 0, length * samplesize);
m_empty = true;
}
}
}
else
{
if(m_buffer.getSize() < length * samplesize)
m_buffer.resize(length * samplesize);
sample_t* buf = m_buffer.getBuffer();
float volume = 1.0f;
for(int i = 0; i < length * specs.channels; i++)
{
if(i % specs.channels == 0)
{
volume = (((position+i)/(float)specs.rate)-m_start) / m_length;
if(volume > 1.0f)
volume = 1.0f;
else if(volume < 0.0f)
volume = 0.0f;
if(m_type == AUD_FADE_OUT)
volume = 1.0f - volume;
}
buf[i] = buffer[i] * volume;
}
buffer = buf;
m_empty = false;
}
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_FADERREADER
#define AUD_FADERREADER
#include "AUD_EffectReader.h"
#include "AUD_Buffer.h"
/**
* This class fades another reader.
* If the fading type is AUD_FADE_IN, everything before the fading start will be
* silenced, for AUD_FADE_OUT that's true for everything after fading ends.
*/
class AUD_FaderReader : public AUD_EffectReader
{
private:
/**
* The fading type.
*/
const AUD_FadeType m_type;
/**
* The fading start.
*/
const float m_start;
/**
* The fading length.
*/
const float m_length;
/**
* The playback buffer.
*/
AUD_Buffer m_buffer;
/**
* Whether the buffer is empty.
*/
bool m_empty;
// hide copy constructor and operator=
AUD_FaderReader(const AUD_FaderReader&);
AUD_FaderReader& operator=(const AUD_FaderReader&);
public:
/**
* Creates a new fader reader.
* \param type The fading type.
* \param start The time where fading should start in seconds.
* \param length How long fading should last in seconds.
*/
AUD_FaderReader(AUD_IReader* reader, AUD_FadeType type,
float start,float length);
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_FADERREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_HighpassFactory.h"
#include "AUD_IIRFilterReader.h"
#include <cmath>
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
AUD_HighpassFactory::AUD_HighpassFactory(AUD_IFactory* factory, float frequency,
float Q) :
AUD_EffectFactory(factory),
m_frequency(frequency),
m_Q(Q)
{
}
AUD_IReader* AUD_HighpassFactory::createReader() const
{
AUD_IReader* reader = getReader();
// calculate coefficients
float w0 = 2 * M_PI * m_frequency / reader->getSpecs().rate;
float alpha = sin(w0) / (2 * m_Q);
float norm = 1 + alpha;
float c = cos(w0);
std::vector<float> a, b;
a.push_back(1);
a.push_back(-2 * c / norm);
a.push_back((1 - alpha) / norm);
b.push_back((1 + c) / (2 * norm));
b.push_back((-1 - c) / norm);
b.push_back(b[0]);
return new AUD_IIRFilterReader(reader, b, a);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_HIGHPASSFACTORY
#define AUD_HIGHPASSFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory creates a highpass filter reader.
*/
class AUD_HighpassFactory : public AUD_EffectFactory
{
private:
/**
* The attack value in seconds.
*/
const float m_frequency;
/**
* The Q factor.
*/
const float m_Q;
// hide copy constructor and operator=
AUD_HighpassFactory(const AUD_HighpassFactory&);
AUD_HighpassFactory& operator=(const AUD_HighpassFactory&);
public:
/**
* Creates a new highpass factory.
* \param factory The input factory.
* \param frequency The cutoff frequency.
* \param Q The Q factor.
*/
AUD_HighpassFactory(AUD_IFactory* factory, float frequency, float Q = 1.0f);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_HIGHPASSFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_IIRFilterFactory.h"
#include "AUD_IIRFilterReader.h"
AUD_IIRFilterFactory::AUD_IIRFilterFactory(AUD_IFactory* factory,
std::vector<float> b,
std::vector<float> a) :
AUD_EffectFactory(factory), m_a(a), m_b(b)
{
}
AUD_IReader* AUD_IIRFilterFactory::createReader() const
{
return new AUD_IIRFilterReader(getReader(), m_b, m_a);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_IIRFILTERFACTORY
#define AUD_IIRFILTERFACTORY
#include "AUD_EffectFactory.h"
#include <vector>
/**
* This factory creates a IIR filter reader.
*/
class AUD_IIRFilterFactory : public AUD_EffectFactory
{
private:
/**
* Output filter coefficients.
*/
std::vector<float> m_a;
/**
* Input filter coefficients.
*/
std::vector<float> m_b;
// hide copy constructor and operator=
AUD_IIRFilterFactory(const AUD_IIRFilterFactory&);
AUD_IIRFilterFactory& operator=(const AUD_IIRFilterFactory&);
public:
/**
* Creates a new IIR filter factory.
* \param factory The input factory.
* \param b The input filter coefficients.
* \param a The output filter coefficients.
*/
AUD_IIRFilterFactory(AUD_IFactory* factory, std::vector<float> b,
std::vector<float> a);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_IIRFILTERFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_IIRFilterReader.h"
AUD_IIRFilterReader::AUD_IIRFilterReader(AUD_IReader* reader,
std::vector<float> b,
std::vector<float> a) :
AUD_BaseIIRFilterReader(reader, b.size(), a.size()), m_a(a), m_b(b)
{
for(int i = 1; i < m_a.size(); i++)
m_a[i] /= m_a[0];
for(int i = 0; i < m_b.size(); i++)
m_b[i] /= m_a[0];
m_a[0] = 1;
}
sample_t AUD_IIRFilterReader::filter()
{
sample_t out = 0;
for(int i = 1; i < m_a.size(); i++)
out -= y(-i) * m_a[i];
for(int i = 0; i < m_b.size(); i++)
out += x(-i) * m_b[i];
return out;
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_IIRFILTERREADER
#define AUD_IIRFILTERREADER
#include "AUD_BaseIIRFilterReader.h"
#include <vector>
/**
* This class is for infinite impulse response filters with simple coefficients.
*/
class AUD_IIRFilterReader : public AUD_BaseIIRFilterReader
{
private:
/**
* Output filter coefficients.
*/
std::vector<float> m_a;
/**
* Input filter coefficients.
*/
std::vector<float> m_b;
// hide copy constructor and operator=
AUD_IIRFilterReader(const AUD_IIRFilterReader&);
AUD_IIRFilterReader& operator=(const AUD_IIRFilterReader&);
public:
/**
* Creates a new IIR filter reader.
* \param reader The reader to read from.
* \param b The input filter coefficients.
* \param a The output filter coefficients.
*/
AUD_IIRFilterReader(AUD_IReader* reader, std::vector<float> b,
std::vector<float> a);
virtual sample_t filter();
};
#endif //AUD_IIRFILTERREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_LimiterFactory.h"
#include "AUD_LimiterReader.h"
#include "AUD_Space.h"
AUD_LimiterFactory::AUD_LimiterFactory(AUD_IFactory* factory,
float start, float end) :
AUD_EffectFactory(factory),
m_start(start),
m_end(end)
{
}
float AUD_LimiterFactory::getStart() const
{
return m_start;
}
float AUD_LimiterFactory::getEnd() const
{
return m_end;
}
AUD_IReader* AUD_LimiterFactory::createReader() const
{
return new AUD_LimiterReader(getReader(), m_start, m_end);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_LIMITERFACTORY
#define AUD_LIMITERFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory limits another factory in start and end time.
*/
class AUD_LimiterFactory : public AUD_EffectFactory
{
private:
/**
* The start time.
*/
const float m_start;
/**
* The end time.
*/
const float m_end;
// hide copy constructor and operator=
AUD_LimiterFactory(const AUD_LimiterFactory&);
AUD_LimiterFactory& operator=(const AUD_LimiterFactory&);
public:
/**
* Creates a new limiter factory.
* \param factory The input factory.
* \param start The desired start time.
* \param end The desired end time, a negative value signals that it should
* play to the end.
*/
AUD_LimiterFactory(AUD_IFactory* factory,
float start = 0, float end = -1);
/**
* Returns the start time.
*/
float getStart() const;
/**
* Returns the end time.
*/
float getEnd() const;
virtual AUD_IReader* createReader() const;
};
#endif //AUD_LIMITERFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_LimiterReader.h"
#include "AUD_Buffer.h"
#include <iostream>
AUD_LimiterReader::AUD_LimiterReader(AUD_IReader* reader,
float start, float end) :
AUD_EffectReader(reader),
m_start(int(start * reader->getSpecs().rate)),
m_end(int(end * reader->getSpecs().rate))
{
if(m_start > 0)
{
if(m_reader->isSeekable())
m_reader->seek(m_start);
else
{
// skip first m_start samples by reading them
int length = AUD_DEFAULT_BUFFER_SIZE;
sample_t* buffer;
for(int len = m_start;
length == AUD_DEFAULT_BUFFER_SIZE;
len -= AUD_DEFAULT_BUFFER_SIZE)
{
if(len < AUD_DEFAULT_BUFFER_SIZE)
length = len;
m_reader->read(length, buffer);
}
}
}
}
void AUD_LimiterReader::seek(int position)
{
m_reader->seek(position + m_start);
}
int AUD_LimiterReader::getLength() const
{
int len = m_reader->getLength();
if(len < 0 || (len > m_end && m_end >= 0))
len = m_end;
return len - m_start;
}
int AUD_LimiterReader::getPosition() const
{
int pos = m_reader->getPosition();
return AUD_MIN(pos, m_end) - m_start;
}
void AUD_LimiterReader::read(int & length, sample_t* & buffer)
{
if(m_end >= 0)
{
int position = m_reader->getPosition();
if(position + length > m_end)
length = m_end - position;
if(length < 0)
{
length = 0;
return;
}
}
m_reader->read(length, buffer);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_LIMITERREADER
#define AUD_LIMITERREADER
#include "AUD_EffectReader.h"
/**
* This reader limits another reader in start and end sample.
*/
class AUD_LimiterReader : public AUD_EffectReader
{
private:
/**
* The start sample: inclusive.
*/
const int m_start;
/**
* The end sample: exlusive.
*/
const int m_end;
// hide copy constructor and operator=
AUD_LimiterReader(const AUD_LimiterReader&);
AUD_LimiterReader& operator=(const AUD_LimiterReader&);
public:
/**
* Creates a new limiter reader.
* \param reader The reader to read from.
* \param start The desired start sample (inclusive).
* \param end The desired end sample (exklusive), a negative value signals
* that it should play to the end.
*/
AUD_LimiterReader(AUD_IReader* reader, float start = 0, float end = -1);
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_LIMITERREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_LoopFactory.h"
#include "AUD_LoopReader.h"
AUD_LoopFactory::AUD_LoopFactory(AUD_IFactory* factory, int loop) :
AUD_EffectFactory(factory),
m_loop(loop)
{
}
int AUD_LoopFactory::getLoop() const
{
return m_loop;
}
AUD_IReader* AUD_LoopFactory::createReader() const
{
return new AUD_LoopReader(getReader(), m_loop);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_LOOPFACTORY
#define AUD_LOOPFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory loops another factory.
* \note The reader has to be seekable.
*/
class AUD_LoopFactory : public AUD_EffectFactory
{
private:
/**
* The loop count.
*/
const int m_loop;
// hide copy constructor and operator=
AUD_LoopFactory(const AUD_LoopFactory&);
AUD_LoopFactory& operator=(const AUD_LoopFactory&);
public:
/**
* Creates a new loop factory.
* \param factory The input factory.
* \param loop The desired loop count, negative values result in endless
* looping.
*/
AUD_LoopFactory(AUD_IFactory* factory, int loop = -1);
/**
* Returns the loop count.
*/
int getLoop() const;
virtual AUD_IReader* createReader() const;
};
#endif //AUD_LOOPFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_LoopReader.h"
#include "AUD_Buffer.h"
#include <cstring>
AUD_LoopReader::AUD_LoopReader(AUD_IReader* reader, int loop) :
AUD_EffectReader(reader), m_count(loop), m_left(loop)
{
}
void AUD_LoopReader::seek(int position)
{
int len = m_reader->getLength();
if(len < 0)
m_reader->seek(position);
else
{
if(m_count >= 0)
{
m_left = m_count - (position / len);
if(m_left < 0)
m_left = 0;
}
m_reader->seek(position % len);
}
}
int AUD_LoopReader::getLength() const
{
if(m_count < 0)
return -1;
return m_reader->getLength() * m_count;
}
int AUD_LoopReader::getPosition() const
{
return m_reader->getPosition() * (m_count < 0 ? 1 : m_count);
}
void AUD_LoopReader::read(int & length, sample_t* & buffer)
{
AUD_Specs specs = m_reader->getSpecs();
int samplesize = AUD_SAMPLE_SIZE(specs);
int len = length;
m_reader->read(len, buffer);
if(len < length && m_left)
{
int pos = 0;
if(m_buffer.getSize() < length * samplesize)
m_buffer.resize(length * samplesize);
sample_t* buf = m_buffer.getBuffer();
memcpy(buf + pos * specs.channels, buffer, len * samplesize);
pos += len;
while(pos < length && m_left)
{
if(m_left > 0)
m_left--;
m_reader->seek(0);
len = length - pos;
m_reader->read(len, buffer);
// prevent endless loop
if(!len)
break;
memcpy(buf + pos * specs.channels, buffer, len * samplesize);
pos += len;
}
length = pos;
buffer = buf;
}
else
length = len;
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_LOOPREADER
#define AUD_LOOPREADER
#include "AUD_EffectReader.h"
#include "AUD_Buffer.h"
/**
* This class reads another reader and loops it.
* \note The other reader must be seekable.
*/
class AUD_LoopReader : public AUD_EffectReader
{
private:
/**
* The playback buffer.
*/
AUD_Buffer m_buffer;
/**
* The loop count.
*/
const int m_count;
/**
* The left loop count.
*/
int m_left;
// hide copy constructor and operator=
AUD_LoopReader(const AUD_LoopReader&);
AUD_LoopReader& operator=(const AUD_LoopReader&);
public:
/**
* Creates a new loop reader.
* \param reader The reader to read from.
* \param loop The desired loop count, negative values result in endless
* looping.
*/
AUD_LoopReader(AUD_IReader* reader, int loop);
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_LOOPREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_LowpassFactory.h"
#include "AUD_IIRFilterReader.h"
#include <cmath>
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
AUD_LowpassFactory::AUD_LowpassFactory(AUD_IFactory* factory, float frequency,
float Q) :
AUD_EffectFactory(factory),
m_frequency(frequency),
m_Q(Q)
{
}
AUD_IReader* AUD_LowpassFactory::createReader() const
{
AUD_IReader* reader = getReader();
// calculate coefficients
float w0 = 2 * M_PI * m_frequency / reader->getSpecs().rate;
float alpha = sin(w0) / (2 * m_Q);
float norm = 1 + alpha;
float c = cos(w0);
std::vector<float> a, b;
a.push_back(1);
a.push_back(-2 * c / norm);
a.push_back((1 - alpha) / norm);
b.push_back((1 - c) / (2 * norm));
b.push_back((1 - c) / norm);
b.push_back(b[0]);
return new AUD_IIRFilterReader(reader, b, a);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_LOWPASSFACTORY
#define AUD_LOWPASSFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory creates a lowpass filter reader.
*/
class AUD_LowpassFactory : public AUD_EffectFactory
{
private:
/**
* The attack value in seconds.
*/
const float m_frequency;
/**
* The Q factor.
*/
const float m_Q;
// hide copy constructor and operator=
AUD_LowpassFactory(const AUD_LowpassFactory&);
AUD_LowpassFactory& operator=(const AUD_LowpassFactory&);
public:
/**
* Creates a new lowpass factory.
* \param factory The input factory.
* \param frequency The cutoff frequency.
* \param Q The Q factor.
*/
AUD_LowpassFactory(AUD_IFactory* factory, float frequency, float Q = 1.0f);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_LOWPASSFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_PingPongFactory.h"
#include "AUD_DoubleReader.h"
#include "AUD_ReverseFactory.h"
AUD_PingPongFactory::AUD_PingPongFactory(AUD_IFactory* factory) :
AUD_EffectFactory(factory)
{
}
AUD_IReader* AUD_PingPongFactory::createReader() const
{
AUD_IReader* reader = getReader();
AUD_IReader* reader2;
AUD_ReverseFactory factory(m_factory);
try
{
reader2 = factory.createReader();
}
catch(AUD_Exception&)
{
delete reader;
throw;
}
return new AUD_DoubleReader(reader, reader2);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_PINGPONGFACTORY
#define AUD_PINGPONGFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory plays another factory first normal, then reversed.
* \note Readers from the underlying factory must be from the buffer type.
*/
class AUD_PingPongFactory : public AUD_EffectFactory
{
private:
// hide copy constructor and operator=
AUD_PingPongFactory(const AUD_PingPongFactory&);
AUD_PingPongFactory& operator=(const AUD_PingPongFactory&);
public:
/**
* Creates a new ping pong factory.
* \param factory The input factory.
*/
AUD_PingPongFactory(AUD_IFactory* factory);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_PINGPONGFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_PitchFactory.h"
#include "AUD_PitchReader.h"
#include "AUD_Space.h"
AUD_PitchFactory::AUD_PitchFactory(AUD_IFactory* factory, float pitch) :
AUD_EffectFactory(factory),
m_pitch(pitch)
{
}
AUD_IReader* AUD_PitchFactory::createReader() const
{
return new AUD_PitchReader(getReader(), m_pitch);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_PITCHFACTORY
#define AUD_PITCHFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory changes the pitch of another factory.
*/
class AUD_PitchFactory : public AUD_EffectFactory
{
private:
/**
* The pitch.
*/
const float m_pitch;
// hide copy constructor and operator=
AUD_PitchFactory(const AUD_PitchFactory&);
AUD_PitchFactory& operator=(const AUD_PitchFactory&);
public:
/**
* Creates a new pitch factory.
* \param factory The input factory.
* \param pitch The desired pitch.
*/
AUD_PitchFactory(AUD_IFactory* factory, float pitch);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_PITCHFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_PitchReader.h"
AUD_PitchReader::AUD_PitchReader(AUD_IReader* reader, float pitch) :
AUD_EffectReader(reader), m_pitch(pitch)
{
}
AUD_Specs AUD_PitchReader::getSpecs() const
{
AUD_Specs specs = m_reader->getSpecs();
specs.rate = (AUD_SampleRate)((int)(specs.rate * m_pitch));
return specs;
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_PITCHREADER
#define AUD_PITCHREADER
#include "AUD_EffectReader.h"
/**
* This class reads another reader and changes it's pitch.
*/
class AUD_PitchReader : public AUD_EffectReader
{
private:
/**
* The pitch level.
*/
const float m_pitch;
// hide copy constructor and operator=
AUD_PitchReader(const AUD_PitchReader&);
AUD_PitchReader& operator=(const AUD_PitchReader&);
public:
/**
* Creates a new pitch reader.
* \param reader The reader to read from.
* \param pitch The size of the buffer.
*/
AUD_PitchReader(AUD_IReader* reader, float pitch);
virtual AUD_Specs getSpecs() const;
};
#endif //AUD_PITCHREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_RectifyFactory.h"
#include "AUD_CallbackIIRFilterReader.h"
#include <cmath>
sample_t rectifyFilter(AUD_CallbackIIRFilterReader* reader, void* useless)
{
return fabs(reader->x(0));
}
AUD_RectifyFactory::AUD_RectifyFactory(AUD_IFactory* factory) :
AUD_EffectFactory(factory)
{
}
AUD_IReader* AUD_RectifyFactory::createReader() const
{
return new AUD_CallbackIIRFilterReader(getReader(), 1, 1, rectifyFilter);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_RECTIFYFACTORY
#define AUD_RECTIFYFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory rectifies another factory.
*/
class AUD_RectifyFactory : public AUD_EffectFactory
{
private:
// hide copy constructor and operator=
AUD_RectifyFactory(const AUD_RectifyFactory&);
AUD_RectifyFactory& operator=(const AUD_RectifyFactory&);
public:
/**
* Creates a new rectify factory.
* \param factory The input factory.
*/
AUD_RectifyFactory(AUD_IFactory* factory);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_RECTIFYFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_ReverseFactory.h"
#include "AUD_ReverseReader.h"
#include "AUD_Space.h"
AUD_ReverseFactory::AUD_ReverseFactory(AUD_IFactory* factory) :
AUD_EffectFactory(factory)
{
}
AUD_IReader* AUD_ReverseFactory::createReader() const
{
return new AUD_ReverseReader(getReader());
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_REVERSEFACTORY
#define AUD_REVERSEFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory reads another factory reverted.
* \note Readers from the underlying factory must be from the buffer type.
*/
class AUD_ReverseFactory : public AUD_EffectFactory
{
private:
// hide copy constructor and operator=
AUD_ReverseFactory(const AUD_ReverseFactory&);
AUD_ReverseFactory& operator=(const AUD_ReverseFactory&);
public:
/**
* Creates a new reverse factory.
* \param factory The input factory.
*/
AUD_ReverseFactory(AUD_IFactory* factory);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_REVERSEFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_ReverseReader.h"
#include <cstring>
static const char* props_error = "AUD_ReverseReader: The reader has to be "
"seekable and a finite length.";
AUD_ReverseReader::AUD_ReverseReader(AUD_IReader* reader) :
AUD_EffectReader(reader),
m_length(reader->getLength()),
m_position(0)
{
if(m_length < 0 || !reader->isSeekable())
AUD_THROW(AUD_ERROR_PROPS, props_error);
}
void AUD_ReverseReader::seek(int position)
{
m_position = position;
}
int AUD_ReverseReader::getLength() const
{
return m_length;
}
int AUD_ReverseReader::getPosition() const
{
return m_position;
}
void AUD_ReverseReader::read(int & length, sample_t* & buffer)
{
// first correct the length
if(m_position + length > m_length)
length = m_length - m_position;
if(length <= 0)
{
length = 0;
return;
}
AUD_Specs specs = getSpecs();
int samplesize = AUD_SAMPLE_SIZE(specs);
// resize buffer if needed
if(m_buffer.getSize() < length * samplesize)
m_buffer.resize(length * samplesize);
buffer = m_buffer.getBuffer();
sample_t* buf;
int len = length;
// read from reader
m_reader->seek(m_length - m_position - len);
m_reader->read(len, buf);
// set null if reader didn't give enough data
if(len < length)
{
memset(buffer, 0, (length - len) * samplesize);
buffer += (length - len) * specs.channels;
}
// copy the samples reverted
for(int i = 0; i < len; i++)
memcpy(buffer + i * specs.channels,
buf + (len - 1 - i) * specs.channels,
samplesize);
m_position += length;
buffer = m_buffer.getBuffer();
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_REVERSEREADER
#define AUD_REVERSEREADER
#include "AUD_EffectReader.h"
#include "AUD_Buffer.h"
/**
* This class reads another reader from back to front.
* \note The underlying reader must be a buffer.
*/
class AUD_ReverseReader : public AUD_EffectReader
{
private:
/**
* The sample count.
*/
const int m_length;
/**
* The current position.
*/
int m_position;
/**
* The playback buffer.
*/
AUD_Buffer m_buffer;
// hide copy constructor and operator=
AUD_ReverseReader(const AUD_ReverseReader&);
AUD_ReverseReader& operator=(const AUD_ReverseReader&);
public:
/**
* Creates a new reverse reader.
* \param reader The reader to read from.
* \exception AUD_Exception Thrown if the reader specified has an
* undeterminable/infinite length or is not seekable.
*/
AUD_ReverseReader(AUD_IReader* reader);
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_REVERSEREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_SquareFactory.h"
#include "AUD_CallbackIIRFilterReader.h"
sample_t squareFilter(AUD_CallbackIIRFilterReader* reader, float* threshold)
{
float in = reader->x(0);
if(in >= *threshold)
return 1;
else if(in <= -*threshold)
return -1;
else
return 0;
}
void endSquareFilter(float* threshold)
{
delete threshold;
}
AUD_SquareFactory::AUD_SquareFactory(AUD_IFactory* factory, float threshold) :
AUD_EffectFactory(factory),
m_threshold(threshold)
{
}
float AUD_SquareFactory::getThreshold() const
{
return m_threshold;
}
AUD_IReader* AUD_SquareFactory::createReader() const
{
return new AUD_CallbackIIRFilterReader(getReader(), 1, 1,
(doFilterIIR) squareFilter,
(endFilterIIR) endSquareFilter,
new float(m_threshold));
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_SQUAREFACTORY
#define AUD_SQUAREFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory Transforms any signal to a square signal.
*/
class AUD_SquareFactory : public AUD_EffectFactory
{
private:
/**
* The threshold.
*/
const float m_threshold;
// hide copy constructor and operator=
AUD_SquareFactory(const AUD_SquareFactory&);
AUD_SquareFactory& operator=(const AUD_SquareFactory&);
public:
/**
* Creates a new square factory.
* \param factory The input factory.
* \param threshold The threshold.
*/
AUD_SquareFactory(AUD_IFactory* factory, float threshold = 0.0f);
/**
* Returns the threshold.
*/
float getThreshold() const;
virtual AUD_IReader* createReader() const;
};
#endif //AUD_SQUAREFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_SumFactory.h"
#include "AUD_IIRFilterReader.h"
AUD_SumFactory::AUD_SumFactory(AUD_IFactory* factory) :
AUD_EffectFactory(factory)
{
}
AUD_IReader* AUD_SumFactory::createReader() const
{
std::vector<float> a, b;
a.push_back(1);
a.push_back(-1);
b.push_back(1);
return new AUD_IIRFilterReader(getReader(), b, a);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_SUMFACTORY
#define AUD_SUMFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory creates a sum reader.
*/
class AUD_SumFactory : public AUD_EffectFactory
{
private:
// hide copy constructor and operator=
AUD_SumFactory(const AUD_SumFactory&);
AUD_SumFactory& operator=(const AUD_SumFactory&);
public:
/**
* Creates a new sum factory.
* \param factory The input factory.
*/
AUD_SumFactory(AUD_IFactory* factory);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_SUMFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_SuperposeFactory.h"
#include "AUD_SuperposeReader.h"
AUD_SuperposeFactory::AUD_SuperposeFactory(AUD_IFactory* factory1, AUD_IFactory* factory2) :
m_factory1(factory1), m_factory2(factory2)
{
}
AUD_IReader* AUD_SuperposeFactory::createReader() const
{
AUD_IReader* reader1 = m_factory1->createReader();
AUD_IReader* reader2;
try
{
reader2 = m_factory2->createReader();
}
catch(AUD_Exception&)
{
delete reader1;
throw;
}
return new AUD_SuperposeReader(reader1, reader2);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_SUPERPOSEFACTORY
#define AUD_SUPERPOSEFACTORY
#include "AUD_IFactory.h"
/**
* This factory plays two other factories behind each other.
* \note Readers from the underlying factories must have the same sample rate and channel count.
*/
class AUD_SuperposeFactory : public AUD_IFactory
{
private:
/**
* First played factory.
*/
AUD_IFactory* m_factory1;
/**
* Second played factory.
*/
AUD_IFactory* m_factory2;
// hide copy constructor and operator=
AUD_SuperposeFactory(const AUD_SuperposeFactory&);
AUD_SuperposeFactory& operator=(const AUD_SuperposeFactory&);
public:
/**
* Creates a new superpose factory.
* \param factory1 The first input factory.
* \param factory2 The second input factory.
*/
AUD_SuperposeFactory(AUD_IFactory* factory1, AUD_IFactory* factory2);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_SUPERPOSEFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_SuperposeReader.h"
#include <cstring>
static const char* specs_error = "AUD_SuperposeReader: Both readers have to "
"have the same specs.";
AUD_SuperposeReader::AUD_SuperposeReader(AUD_IReader* reader1, AUD_IReader* reader2) :
m_reader1(reader1), m_reader2(reader2)
{
try
{
AUD_Specs s1, s2;
s1 = reader1->getSpecs();
s2 = reader2->getSpecs();
if(memcmp(&s1, &s2, sizeof(AUD_Specs)))
AUD_THROW(AUD_ERROR_SPECS, specs_error);
}
catch(AUD_Exception&)
{
delete reader1;
delete reader2;
throw;
}
}
AUD_SuperposeReader::~AUD_SuperposeReader()
{
delete m_reader1;
delete m_reader2;
}
bool AUD_SuperposeReader::isSeekable() const
{
return m_reader1->isSeekable() && m_reader2->isSeekable();
}
void AUD_SuperposeReader::seek(int position)
{
m_reader1->seek(position);
m_reader2->seek(position);
}
int AUD_SuperposeReader::getLength() const
{
int len1 = m_reader1->getLength();
int len2 = m_reader2->getLength();
if((len1 < 0) || (len2 < 0))
return -1;
return AUD_MIN(len1, len2);
}
int AUD_SuperposeReader::getPosition() const
{
int pos1 = m_reader1->getPosition();
int pos2 = m_reader2->getPosition();
return AUD_MAX(pos1, pos2);
}
AUD_Specs AUD_SuperposeReader::getSpecs() const
{
return m_reader1->getSpecs();
}
void AUD_SuperposeReader::read(int & length, sample_t* & buffer)
{
AUD_Specs specs = m_reader1->getSpecs();
int samplesize = AUD_SAMPLE_SIZE(specs);
if(m_buffer.getSize() < length * samplesize)
m_buffer.resize(length * samplesize);
buffer = m_buffer.getBuffer();
int len1 = length;
sample_t* buf;
m_reader1->read(len1, buf);
memcpy(buffer, buf, len1 * samplesize);
if(len1 < length)
memset(buffer + len1 * specs.channels, 0, (length - len1) * samplesize);
int len2 = length;
m_reader2->read(len2, buf);
for(int i = 0; i < len2 * specs.channels; i++)
buffer[i] += buf[i];
length = AUD_MAX(len1, len2);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_SUPERPOSEREADER
#define AUD_SUPERPOSEREADER
#include "AUD_IReader.h"
#include "AUD_Buffer.h"
/**
* This reader plays two readers with the same specs sequently.
*/
class AUD_SuperposeReader : public AUD_IReader
{
private:
/**
* The first reader.
*/
AUD_IReader* m_reader1;
/**
* The second reader.
*/
AUD_IReader* m_reader2;
/**
* The playback buffer for the intersecting part.
*/
AUD_Buffer m_buffer;
// hide copy constructor and operator=
AUD_SuperposeReader(const AUD_SuperposeReader&);
AUD_SuperposeReader& operator=(const AUD_SuperposeReader&);
public:
/**
* Creates a new superpose reader.
* \param reader1 The first reader to read from.
* \param reader2 The second reader to read from.
* \exception AUD_Exception Thrown if the specs from the readers differ.
*/
AUD_SuperposeReader(AUD_IReader* reader1, AUD_IReader* reader2);
/**
* Destroys the reader.
*/
virtual ~AUD_SuperposeReader();
virtual bool isSeekable() const;
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual AUD_Specs getSpecs() const;
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_SUPERPOSEREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_VolumeFactory.h"
#include "AUD_IIRFilterReader.h"
AUD_VolumeFactory::AUD_VolumeFactory(AUD_IFactory* factory, float volume) :
AUD_EffectFactory(factory),
m_volume(volume)
{
}
float AUD_VolumeFactory::getVolume() const
{
return m_volume;
}
AUD_IReader* AUD_VolumeFactory::createReader() const
{
std::vector<float> a, b;
a.push_back(1);
b.push_back(m_volume);
return new AUD_IIRFilterReader(getReader(), b, a);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_VOLUMEFACTORY
#define AUD_VOLUMEFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory changes the volume of another factory.
* The set volume should be a value between 0.0 and 1.0, higher values at your
* own risk!
*/
class AUD_VolumeFactory : public AUD_EffectFactory
{
private:
/**
* The volume.
*/
const float m_volume;
// hide copy constructor and operator=
AUD_VolumeFactory(const AUD_VolumeFactory&);
AUD_VolumeFactory& operator=(const AUD_VolumeFactory&);
public:
/**
* Creates a new volume factory.
* \param factory The input factory.
* \param volume The desired volume.
*/
AUD_VolumeFactory(AUD_IFactory* factory, float volume);
/**
* Returns the volume.
*/
float getVolume() const;
virtual AUD_IReader* createReader() const;
};
#endif //AUD_VOLUMEFACTORY

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#
# $Id$
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): none yet.
#
# ***** END GPL LICENSE BLOCK *****
#
#
LIBNAME = aud_fx
DIR = $(OCGDIR)/intern/audaspace
include nan_compile.mk
CCFLAGS += $(LEVEL_1_CPP_WARNINGS)
CPPFLAGS += -I../ffmpeg
CPPFLAGS += -I../intern
CPPFLAGS += -I../SDL
CPPFLAGS += -I../SRC
CPPFLAGS += -I..
CPPFLAGS += -I.

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# -*- mode: gnumakefile; tab-width: 8; indent-tabs-mode: t; -*-
# vim: tabstop=8
#
# $Id$
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): GSR
#
# ***** END GPL LICENSE BLOCK *****
#
#
include nan_definitions.mk
LIBNAME = audaspace
SOURCEDIR = intern/audaspace
DIR = $(OCGDIR)/$(SOURCEDIR)
DIRS = intern
DIRS += FX
DIRS += SDL
DIRS += SRC
DIRS += Python
ifeq ($(WITH_FFMPEG),true)
DIRS += ffmpeg
endif
ifeq ($(WITH_OPENAL),true)
DIRS += OpenAL
endif
ifeq ($(WITH_JACK),true)
DIRS += jack
endif
ifeq ($(WITH_SNDFILE),true)
DIRS += sndfile
endif
#ifeq ($(WITH_FFTW3),true)
# DIRS += fftw
#endif
include nan_subdirs.mk
install: $(ALL_OR_DEBUG)
@[ -d $(NAN_AUDASPACE) ] || mkdir $(NAN_AUDASPACE)
@[ -d $(NAN_AUDASPACE)/include ] || mkdir $(NAN_AUDASPACE)/include
@[ -d $(NAN_AUDASPACE)/lib/$(DEBUG_DIR) ] || mkdir $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)
@../tools/cpifdiff.sh $(DIR)/$(DEBUG_DIR)libaudaspace.a $(DIR)/$(DEBUG_DIR)libaud_sdl.a $(DIR)/$(DEBUG_DIR)libaud_python.a $(DIR)/$(DEBUG_DIR)libaud_fx.a $(DIR)/$(DEBUG_DIR)libaud_src.a $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)
ifeq ($(WITH_FFMPEG),true)
@../tools/cpifdiff.sh $(DIR)/$(DEBUG_DIR)libaud_ffmpeg.a $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)
endif
ifeq ($(WITH_OPENAL),true)
@../tools/cpifdiff.sh $(DIR)/$(DEBUG_DIR)libaud_openal.a $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)
endif
ifeq ($(WITH_JACK),true)
@../tools/cpifdiff.sh $(DIR)/$(DEBUG_DIR)libaud_jack.a $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)
endif
ifeq ($(WITH_SNDFILE),true)
@../tools/cpifdiff.sh $(DIR)/$(DEBUG_DIR)libaud_sndfile.a $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)
endif
#ifeq ($(WITH_FFTW3),true)
# @../tools/cpifdiff.sh $(DIR)/$(DEBUG_DIR)libaud_fftw.a $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)
#endif
ifeq ($(OS),darwin)
ranlib $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)libaudaspace.a
ranlib $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)libaud_src.a
ranlib $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)libaud_fx.a
ranlib $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)libaud_sdl.a
ifeq ($(WITH_FFMPEG),true)
ranlib $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)libaud_ffmpeg.a
endif
ifeq ($(WITH_OPENAL),true)
ranlib $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)libaud_openal.a
endif
ifeq ($(WITH_JACK),true)
ranlib $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)libaud_jack.a
endif
ifeq ($(WITH_SNDFILE),true)
ranlib $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)libaud_sndfile.a
endif
#ifeq ($(WITH_FFTW3),true)
# ranlib $(NAN_AUDASPACE)/lib/$(DEBUG_DIR)libaud_fftw.a
#endif
endif
@../tools/cpifdiff.sh intern/*.h $(NAN_AUDASPACE)/include/

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_OPENALDEVICE
#define AUD_OPENALDEVICE
#include "AUD_IDevice.h"
#include "AUD_I3DDevice.h"
struct AUD_OpenALHandle;
struct AUD_OpenALBufferedFactory;
#include <AL/al.h>
#include <AL/alc.h>
#include <list>
#include <pthread.h>
/**
* This device plays through OpenAL.
*/
class AUD_OpenALDevice : public AUD_IDevice, public AUD_I3DDevice
{
private:
/**
* The OpenAL device handle.
*/
ALCdevice* m_device;
/**
* The OpenAL context.
*/
ALCcontext* m_context;
/**
* The specification of the device.
*/
AUD_DeviceSpecs m_specs;
/**
* Whether the device has the AL_EXT_MCFORMATS extension.
*/
bool m_useMC;
/**
* The list of sounds that are currently playing.
*/
std::list<AUD_OpenALHandle*>* m_playingSounds;
/**
* The list of sounds that are currently paused.
*/
std::list<AUD_OpenALHandle*>* m_pausedSounds;
/**
* The list of buffered factories.
*/
std::list<AUD_OpenALBufferedFactory*>* m_bufferedFactories;
/**
* The mutex for locking.
*/
pthread_mutex_t m_mutex;
/**
* The streaming thread.
*/
pthread_t m_thread;
/**
* The condition for streaming thread wakeup.
*/
bool m_playing;
/**
* Buffer size.
*/
int m_buffersize;
/**
* Starts the streaming thread.
*/
void start();
/**
* Checks if a handle is valid.
* \param handle The handle to check.
* \return Whether the handle is valid.
*/
bool isValid(AUD_Handle* handle);
/**
* Gets the format according to the specs.
* \param format The variable to put the format into.
* \param specs The specs to read the channel count from.
* \return Whether the format is valid or not.
*/
bool getFormat(ALenum &format, AUD_Specs specs);
// hide copy constructor and operator=
AUD_OpenALDevice(const AUD_OpenALDevice&);
AUD_OpenALDevice& operator=(const AUD_OpenALDevice&);
public:
/**
* Opens the OpenAL audio device for playback.
* \param specs The wanted audio specification.
* \param buffersize The size of the internal buffer.
* \note The specification really used for opening the device may differ.
* \note The buffersize will be multiplicated by three for this device.
* \exception AUD_Exception Thrown if the audio device cannot be opened.
*/
AUD_OpenALDevice(AUD_DeviceSpecs specs,
int buffersize = AUD_DEFAULT_BUFFER_SIZE);
/**
* Streaming thread main function.
*/
void updateStreams();
virtual ~AUD_OpenALDevice();
virtual AUD_DeviceSpecs getSpecs() const;
virtual AUD_Handle* play(AUD_IFactory* factory, bool keep = false);
virtual bool pause(AUD_Handle* handle);
virtual bool resume(AUD_Handle* handle);
virtual bool stop(AUD_Handle* handle);
virtual bool getKeep(AUD_Handle* handle);
virtual bool setKeep(AUD_Handle* handle, bool keep);
virtual bool seek(AUD_Handle* handle, float position);
virtual float getPosition(AUD_Handle* handle);
virtual AUD_Status getStatus(AUD_Handle* handle);
virtual void lock();
virtual void unlock();
virtual float getVolume() const;
virtual void setVolume(float volume);
virtual float getVolume(AUD_Handle* handle);
virtual bool setVolume(AUD_Handle* handle, float volume);
virtual float getPitch(AUD_Handle* handle);
virtual bool setPitch(AUD_Handle* handle, float pitch);
virtual int getLoopCount(AUD_Handle* handle);
virtual bool setLoopCount(AUD_Handle* handle, int count);
virtual bool setStopCallback(AUD_Handle* handle, stopCallback callback = NULL, void* data = NULL);
virtual AUD_Vector3 getListenerLocation() const;
virtual void setListenerLocation(const AUD_Vector3& location);
virtual AUD_Vector3 getListenerVelocity() const;
virtual void setListenerVelocity(const AUD_Vector3& velocity);
virtual AUD_Quaternion getListenerOrientation() const;
virtual void setListenerOrientation(const AUD_Quaternion& orientation);
virtual float getSpeedOfSound() const;
virtual void setSpeedOfSound(float speed);
virtual float getDopplerFactor() const;
virtual void setDopplerFactor(float factor);
virtual AUD_DistanceModel getDistanceModel() const;
virtual void setDistanceModel(AUD_DistanceModel model);
virtual AUD_Vector3 getSourceLocation(AUD_Handle* handle);
virtual bool setSourceLocation(AUD_Handle* handle, const AUD_Vector3& location);
virtual AUD_Vector3 getSourceVelocity(AUD_Handle* handle);
virtual bool setSourceVelocity(AUD_Handle* handle, const AUD_Vector3& velocity);
virtual AUD_Quaternion getSourceOrientation(AUD_Handle* handle);
virtual bool setSourceOrientation(AUD_Handle* handle, const AUD_Quaternion& orientation);
virtual bool isRelative(AUD_Handle* handle);
virtual bool setRelative(AUD_Handle* handle, bool relative);
virtual float getVolumeMaximum(AUD_Handle* handle);
virtual bool setVolumeMaximum(AUD_Handle* handle, float volume);
virtual float getVolumeMinimum(AUD_Handle* handle);
virtual bool setVolumeMinimum(AUD_Handle* handle, float volume);
virtual float getDistanceMaximum(AUD_Handle* handle);
virtual bool setDistanceMaximum(AUD_Handle* handle, float distance);
virtual float getDistanceReference(AUD_Handle* handle);
virtual bool setDistanceReference(AUD_Handle* handle, float distance);
virtual float getAttenuation(AUD_Handle* handle);
virtual bool setAttenuation(AUD_Handle* handle, float factor);
virtual float getConeAngleOuter(AUD_Handle* handle);
virtual bool setConeAngleOuter(AUD_Handle* handle, float angle);
virtual float getConeAngleInner(AUD_Handle* handle);
virtual bool setConeAngleInner(AUD_Handle* handle, float angle);
virtual float getConeVolumeOuter(AUD_Handle* handle);
virtual bool setConeVolumeOuter(AUD_Handle* handle, float volume);
};
#endif //AUD_OPENALDEVICE

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#
# $Id$
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): none yet.
#
# ***** END GPL LICENSE BLOCK *****
#
#
LIBNAME = aud_openal
DIR = $(OCGDIR)/intern/audaspace
include nan_compile.mk
CCFLAGS += $(LEVEL_1_CPP_WARNINGS)
CPPFLAGS += -I../intern
CPPFLAGS += -I.

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_PYAPI
#define AUD_PYAPI
#include "Python.h"
#ifdef __cplusplus
extern "C" {
#include "AUD_IDevice.h"
#else
typedef void AUD_IFactory;
typedef void AUD_IDevice;
typedef void AUD_Handle;
#endif
typedef struct {
PyObject_HEAD
PyObject* child_list;
AUD_IFactory* factory;
} Factory;
typedef struct {
PyObject_HEAD
AUD_Handle* handle;
PyObject* device;
} Handle;
typedef struct {
PyObject_HEAD
AUD_IDevice* device;
} Device;
PyMODINIT_FUNC
PyInit_aud(void);
extern PyObject *
Device_empty();
#ifdef __cplusplus
}
#endif
#endif //AUD_PYAPI

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# -*- mode: gnumakefile; tab-width: 8; indent-tabs-mode: t; -*-
# vim: tabstop=8
#
# $Id$
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# The Original Code is Copyright (C) 2010 by Blender Foundation
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): Ton
#
# ***** END GPL LICENSE BLOCK *****
#
#
LIBNAME = aud_python
DIR = $(OCGDIR)/intern/audaspace
include nan_compile.mk
CCFLAGS += $(LEVEL_1_CPP_WARNINGS)
CPPFLAGS += -I$(NAN_PYTHON)/include/python$(NAN_PYTHON_VERSION)
ifeq ($(WITH_SDL),true)
CPPFLAGS += -DWITH_SDL
CPPFLAGS += $(NAN_SDLCFLAGS)
endif
ifeq ($(WITH_OPENAL),true)
CPPFLAGS += -DWITH_OPENAL
CPPFLAGS += -I../OpenAL
endif
ifeq ($(WITH_JACK),true)
CPPFLAGS += -DWITH_JACK
CPPFLAGS += $(NAN_JACKCFLAGS)
CPPFLAGS += -I../jack
endif
ifeq ($(WITH_FFMPEG),true)
CPPFLAGS += -DWITH_FFMPEG
CPPFLAGS += $(NAN_FFMPEGCFLAGS)
endif
ifeq ($(WITH_SNDFILE),true)
CPPFLAGS += -DWITH_SNDFILE
CPPFLAGS += -I../sndfile
CPPFLAGS += -I$(NAN_SNDFILE)/include
endif
CPPFLAGS += -I$(NAN_SAMPLERATE)/include/
CPPFLAGS += -I../ffmpeg
CPPFLAGS += -I../FX
CPPFLAGS += -I../SDL
CPPFLAGS += -I../SRC
CPPFLAGS += -I../intern
CPPFLAGS += -I..
CPPFLAGS += -I.

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#!/usr/bin/python
Import ('env')
sources = env.Glob('intern/*.cpp') + env.Glob('FX/*.cpp') + env.Glob('SRC/*.cpp')
incs = '. intern FX SRC ' + env['BF_PTHREADS_INC'] + ' ' + env['BF_LIBSAMPLERATE_INC']
defs = []
if env['WITH_BF_FFMPEG']:
sources += env.Glob('ffmpeg/*.cpp')
incs += ' ffmpeg ' + env['BF_FFMPEG_INC']
defs.append('WITH_FFMPEG')
if env['WITH_BF_SDL']:
sources += env.Glob('SDL/*.cpp')
incs += ' SDL ' + env['BF_SDL_INC']
defs.append('WITH_SDL')
if env['WITH_BF_OPENAL']:
sources += env.Glob('OpenAL/*.cpp')
incs += ' OpenAL ' + env['BF_OPENAL_INC']
defs.append('WITH_OPENAL')
if env['WITH_BF_JACK']:
sources += env.Glob('jack/*.cpp')
incs += ' jack ' + env['BF_JACK_INC']
defs.append('WITH_JACK')
if env['WITH_BF_SNDFILE']:
sources += env.Glob('sndfile/*.cpp')
incs += ' sndfile ' + env['BF_SNDFILE_INC']
defs.append('WITH_SNDFILE')
#if env['WITH_BF_FFTW3']:
# sources += env.Glob('fftw/*.cpp')
# incs += ' fftw ' + env['BF_FFTW3_INC']
# defs.append('WITH_FFTW3')
if env['WITH_BF_PYTHON']:
sources += env.Glob('Python/*.cpp')
incs += ' Python ' + env['BF_PYTHON_INC']
else:
defs.append('DISABLE_PYTHON')
if env['OURPLATFORM'] in ('win32-vc', 'win32-mingw', 'linuxcross', 'win64-vc'):
incs += ' ' + env['BF_PTHREADS_INC']
env.BlenderLib ('bf_intern_audaspace', sources, Split(incs), defs, libtype=['intern','player'], priority = [25,215] )

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_SDLDevice.h"
#include "AUD_IReader.h"
void AUD_SDLDevice::SDL_mix(void *data, Uint8* buffer, int length)
{
AUD_SDLDevice* device = (AUD_SDLDevice*)data;
device->mix((data_t*)buffer,length/AUD_DEVICE_SAMPLE_SIZE(device->m_specs));
}
static const char* open_error = "AUD_SDLDevice: Device couldn't be opened.";
static const char* format_error = "AUD_SDLDevice: Obtained unsupported sample "
"format.";
AUD_SDLDevice::AUD_SDLDevice(AUD_DeviceSpecs specs, int buffersize)
{
if(specs.channels == AUD_CHANNELS_INVALID)
specs.channels = AUD_CHANNELS_STEREO;
if(specs.format == AUD_FORMAT_INVALID)
specs.format = AUD_FORMAT_S16;
if(specs.rate == AUD_RATE_INVALID)
specs.rate = AUD_RATE_44100;
m_specs = specs;
SDL_AudioSpec format, obtained;
format.freq = m_specs.rate;
if(m_specs.format == AUD_FORMAT_U8)
format.format = AUDIO_U8;
else
format.format = AUDIO_S16SYS;
format.channels = m_specs.channels;
format.samples = buffersize;
format.callback = AUD_SDLDevice::SDL_mix;
format.userdata = this;
if(SDL_OpenAudio(&format, &obtained) != 0)
AUD_THROW(AUD_ERROR_SDL, open_error);
m_specs.rate = (AUD_SampleRate)obtained.freq;
m_specs.channels = (AUD_Channels)obtained.channels;
if(obtained.format == AUDIO_U8)
m_specs.format = AUD_FORMAT_U8;
else if(obtained.format == AUDIO_S16LSB || obtained.format == AUDIO_S16MSB)
m_specs.format = AUD_FORMAT_S16;
else
{
SDL_CloseAudio();
AUD_THROW(AUD_ERROR_SDL, format_error);
}
create();
}
AUD_SDLDevice::~AUD_SDLDevice()
{
lock();
SDL_CloseAudio();
unlock();
destroy();
}
void AUD_SDLDevice::playing(bool playing)
{
SDL_PauseAudio(playing ? 0 : 1);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_SDLDEVICE
#define AUD_SDLDEVICE
#include "AUD_SoftwareDevice.h"
#include <SDL.h>
/**
* This device plays back through SDL, the simple direct media layer.
*/
class AUD_SDLDevice : public AUD_SoftwareDevice
{
private:
/**
* Mixes the next bytes into the buffer.
* \param data The SDL device.
* \param buffer The target buffer.
* \param length The length in bytes to be filled.
*/
static void SDL_mix(void *data, Uint8* buffer, int length);
// hide copy constructor and operator=
AUD_SDLDevice(const AUD_SDLDevice&);
AUD_SDLDevice& operator=(const AUD_SDLDevice&);
protected:
virtual void playing(bool playing);
public:
/**
* Opens the SDL audio device for playback.
* \param specs The wanted audio specification.
* \param buffersize The size of the internal buffer.
* \note The specification really used for opening the device may differ.
* \exception AUD_Exception Thrown if the audio device cannot be opened.
*/
AUD_SDLDevice(AUD_DeviceSpecs specs,
int buffersize = AUD_DEFAULT_BUFFER_SIZE);
/**
* Closes the SDL audio device.
*/
virtual ~AUD_SDLDevice();
};
#endif //AUD_SDLDEVICE

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@ -0,0 +1,41 @@
#
# $Id$
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): none yet.
#
# ***** END GPL LICENSE BLOCK *****
#
#
LIBNAME = aud_sdl
DIR = $(OCGDIR)/intern/audaspace
include nan_compile.mk
CCFLAGS += $(LEVEL_1_CPP_WARNINGS)
CPPFLAGS += $(NAN_SDLCFLAGS)
CPPFLAGS += -I../intern
CPPFLAGS += -I..
CPPFLAGS += -I.

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_SRCResampleFactory.h"
#include "AUD_SRCResampleReader.h"
AUD_SRCResampleFactory::AUD_SRCResampleFactory(AUD_IFactory* factory,
AUD_DeviceSpecs specs) :
AUD_ResampleFactory(factory, specs)
{
}
AUD_IReader* AUD_SRCResampleFactory::createReader() const
{
AUD_IReader* reader = getReader();
if(reader->getSpecs().rate != m_specs.rate)
reader = new AUD_SRCResampleReader(reader, m_specs.specs);
return reader;
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_SRCRESAMPLEFACTORY
#define AUD_SRCRESAMPLEFACTORY
#include "AUD_ResampleFactory.h"
/**
* This factory creates a resampling reader that uses libsamplerate for
* resampling.
*/
class AUD_SRCResampleFactory : public AUD_ResampleFactory
{
private:
// hide copy constructor and operator=
AUD_SRCResampleFactory(const AUD_SRCResampleFactory&);
AUD_SRCResampleFactory& operator=(const AUD_SRCResampleFactory&);
public:
AUD_SRCResampleFactory(AUD_IFactory* factory, AUD_DeviceSpecs specs);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_SRCRESAMPLEFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_SRCResampleReader.h"
#include <cmath>
#include <cstring>
#include <cstdio>
static long src_callback(void *cb_data, float **data)
{
return ((AUD_SRCResampleReader*)cb_data)->doCallback(data);
}
static const char* state_error = "AUD_SRCResampleReader: SRC State couldn't be "
"created.";
AUD_SRCResampleReader::AUD_SRCResampleReader(AUD_IReader* reader,
AUD_Specs specs) :
AUD_EffectReader(reader),
m_sspecs(reader->getSpecs()),
m_factor(double(specs.rate) / double(m_sspecs.rate)),
m_tspecs(specs),
m_position(0)
{
m_tspecs.channels = m_sspecs.channels;
int error;
m_src = src_callback_new(src_callback,
SRC_SINC_MEDIUM_QUALITY,
m_sspecs.channels,
&error,
this);
if(!m_src)
{
// XXX printf("%s\n", src_strerror(error));
AUD_THROW(AUD_ERROR_SRC, state_error);
}
}
AUD_SRCResampleReader::~AUD_SRCResampleReader()
{
src_delete(m_src);
}
long AUD_SRCResampleReader::doCallback(float** data)
{
int length = m_buffer.getSize() / AUD_SAMPLE_SIZE(m_tspecs);
sample_t* buffer;
m_reader->read(length, buffer);
*data = buffer;
return length;
}
void AUD_SRCResampleReader::seek(int position)
{
m_reader->seek(position / m_factor);
src_reset(m_src);
m_position = position;
}
int AUD_SRCResampleReader::getLength() const
{
return m_reader->getLength() * m_factor;
}
int AUD_SRCResampleReader::getPosition() const
{
return m_position;
}
AUD_Specs AUD_SRCResampleReader::getSpecs() const
{
return m_tspecs;
}
void AUD_SRCResampleReader::read(int & length, sample_t* & buffer)
{
int size = length * AUD_SAMPLE_SIZE(m_tspecs);
if(m_buffer.getSize() < size)
m_buffer.resize(size);
buffer = m_buffer.getBuffer();
length = src_callback_read(m_src, m_factor, length, buffer);
m_position += length;
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_SRCRESAMPLEREADER
#define AUD_SRCRESAMPLEREADER
#include "AUD_EffectReader.h"
#include "AUD_Buffer.h"
#include <samplerate.h>
/**
* This resampling reader uses libsamplerate for resampling.
*/
class AUD_SRCResampleReader : public AUD_EffectReader
{
private:
/**
* The sample specification of the source.
*/
const AUD_Specs m_sspecs;
/**
* The resampling factor.
*/
const double m_factor;
/**
* The sound output buffer.
*/
AUD_Buffer m_buffer;
/**
* The target specification.
*/
AUD_Specs m_tspecs;
/**
* The src state structure.
*/
SRC_STATE* m_src;
/**
* The current playback position;
*/
int m_position;
// hide copy constructor and operator=
AUD_SRCResampleReader(const AUD_SRCResampleReader&);
AUD_SRCResampleReader& operator=(const AUD_SRCResampleReader&);
public:
/**
* Creates a resampling reader.
* \param reader The reader to mix.
* \param specs The target specification.
* \exception AUD_Exception Thrown if the source specification cannot be
* resampled to the target specification.
*/
AUD_SRCResampleReader(AUD_IReader* reader, AUD_Specs specs);
/**
* Destroys the reader.
*/
~AUD_SRCResampleReader();
/**
* The callback function for SRC.
* \warning Do not call!
* \param data The pointer to the float data.
* \return The count of samples in the float data.
*/
long doCallback(float** data);
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual AUD_Specs getSpecs() const;
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_SRCRESAMPLEREADER

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#
# $Id$
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): none yet.
#
# ***** END GPL LICENSE BLOCK *****
#
#
LIBNAME = aud_src
DIR = $(OCGDIR)/intern/audaspace
include nan_compile.mk
CCFLAGS += $(LEVEL_1_CPP_WARNINGS)
CPPFLAGS += -I$(NAN_SAMPLERATE)/include
CPPFLAGS += -I../ffmpeg
CPPFLAGS += -I../FX
CPPFLAGS += -I../SDL
CPPFLAGS += -I../intern
CPPFLAGS += -I..
CPPFLAGS += -I.

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
// needed for INT64_C
#ifndef __STDC_CONSTANT_MACROS
#define __STDC_CONSTANT_MACROS
#endif
#include "AUD_FFMPEGFactory.h"
#include "AUD_FFMPEGReader.h"
#include "AUD_Buffer.h"
AUD_FFMPEGFactory::AUD_FFMPEGFactory(std::string filename) :
m_filename(filename)
{
}
AUD_FFMPEGFactory::AUD_FFMPEGFactory(const data_t* buffer, int size) :
m_buffer(new AUD_Buffer(size))
{
memcpy(m_buffer.get()->getBuffer(), buffer, size);
}
AUD_IReader* AUD_FFMPEGFactory::createReader() const
{
if(m_buffer.get())
return new AUD_FFMPEGReader(m_buffer);
else
return new AUD_FFMPEGReader(m_filename);
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_FFMPEGFACTORY
#define AUD_FFMPEGFACTORY
#include "AUD_IFactory.h"
#include "AUD_Reference.h"
class AUD_Buffer;
#include <string>
/**
* This factory reads a sound file via ffmpeg.
* \warning Notice that the needed formats and codecs have to be registered
* for ffmpeg before this class can be used.
*/
class AUD_FFMPEGFactory : public AUD_IFactory
{
private:
/**
* The filename of the sound source file.
*/
const std::string m_filename;
/**
* The buffer to read from.
*/
AUD_Reference<AUD_Buffer> m_buffer;
// hide copy constructor and operator=
AUD_FFMPEGFactory(const AUD_FFMPEGFactory&);
AUD_FFMPEGFactory& operator=(const AUD_FFMPEGFactory&);
public:
/**
* Creates a new factory.
* \param filename The sound file path.
*/
AUD_FFMPEGFactory(std::string filename);
/**
* Creates a new factory.
* \param buffer The buffer to read from.
* \param size The size of the buffer.
*/
AUD_FFMPEGFactory(const data_t* buffer, int size);
virtual AUD_IReader* createReader() const;
};
#endif //AUD_FFMPEGFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
// needed for INT64_C
#ifndef __STDC_CONSTANT_MACROS
#define __STDC_CONSTANT_MACROS
#endif
#include "AUD_FFMPEGReader.h"
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
}
int AUD_FFMPEGReader::decode(AVPacket* packet, AUD_Buffer& buffer)
{
// save packet parameters
uint8_t *audio_pkg_data = packet->data;
int audio_pkg_size = packet->size;
int buf_size = buffer.getSize();
int buf_pos = 0;
int read_length, data_size;
// as long as there is still data in the package
while(audio_pkg_size > 0)
{
// resize buffer if needed
if(buf_size - buf_pos < AVCODEC_MAX_AUDIO_FRAME_SIZE)
{
buffer.resize(buf_size + AVCODEC_MAX_AUDIO_FRAME_SIZE, true);
buf_size += AVCODEC_MAX_AUDIO_FRAME_SIZE;
}
// read samples from the packet
data_size = buf_size - buf_pos;
/*read_length = avcodec_decode_audio3(m_codecCtx,
(int16_t*)(((data_t*)buffer.getBuffer())+buf_pos),
&data_size,
packet);*/
read_length = avcodec_decode_audio2(m_codecCtx,
(int16_t*)(((data_t*)buffer.getBuffer()) + buf_pos),
&data_size,
audio_pkg_data,
audio_pkg_size);
// read error, next packet!
if(read_length < 0)
break;
buf_pos += data_size;
// move packet parameters
audio_pkg_data += read_length;
audio_pkg_size -= read_length;
}
return buf_pos;
}
static const char* streaminfo_error = "AUD_FFMPEGReader: Stream info couldn't "
"be found.";
static const char* noaudio_error = "AUD_FFMPEGReader: File doesn't include an "
"audio stream.";
static const char* nodecoder_error = "AUD_FFMPEGReader: No decoder found for "
"the audio stream.";
static const char* codecopen_error = "AUD_FFMPEGReader: Codec couldn't be "
"opened.";
static const char* format_error = "AUD_FFMPEGReader: Unsupported sample "
"format.";
void AUD_FFMPEGReader::init()
{
m_position = 0;
m_pkgbuf_left = 0;
if(av_find_stream_info(m_formatCtx)<0)
AUD_THROW(AUD_ERROR_FFMPEG, streaminfo_error);
// find audio stream and codec
m_stream = -1;
for(unsigned int i = 0; i < m_formatCtx->nb_streams; i++)
{
if((m_formatCtx->streams[i]->codec->codec_type == CODEC_TYPE_AUDIO)
&& (m_stream < 0))
{
m_stream=i;
break;
}
}
if(m_stream == -1)
AUD_THROW(AUD_ERROR_FFMPEG, noaudio_error);
m_codecCtx = m_formatCtx->streams[m_stream]->codec;
// get a decoder and open it
AVCodec *aCodec = avcodec_find_decoder(m_codecCtx->codec_id);
if(!aCodec)
AUD_THROW(AUD_ERROR_FFMPEG, nodecoder_error);
if(avcodec_open(m_codecCtx, aCodec)<0)
AUD_THROW(AUD_ERROR_FFMPEG, codecopen_error);
// XXX this prints file information to stdout:
//dump_format(m_formatCtx, 0, NULL, 0);
m_specs.channels = (AUD_Channels) m_codecCtx->channels;
switch(m_codecCtx->sample_fmt)
{
case SAMPLE_FMT_U8:
m_convert = AUD_convert_u8_float;
m_specs.format = AUD_FORMAT_U8;
break;
case SAMPLE_FMT_S16:
m_convert = AUD_convert_s16_float;
m_specs.format = AUD_FORMAT_S16;
break;
case SAMPLE_FMT_S32:
m_convert = AUD_convert_s32_float;
m_specs.format = AUD_FORMAT_S32;
break;
case SAMPLE_FMT_FLT:
m_convert = AUD_convert_copy<float>;
m_specs.format = AUD_FORMAT_FLOAT32;
break;
case SAMPLE_FMT_DBL:
m_convert = AUD_convert_double_float;
m_specs.format = AUD_FORMAT_FLOAT64;
break;
default:
AUD_THROW(AUD_ERROR_FFMPEG, format_error);
}
m_specs.rate = (AUD_SampleRate) m_codecCtx->sample_rate;
}
static const char* fileopen_error = "AUD_FFMPEGReader: File couldn't be "
"opened.";
AUD_FFMPEGReader::AUD_FFMPEGReader(std::string filename) :
m_pkgbuf(AVCODEC_MAX_AUDIO_FRAME_SIZE<<1),
m_byteiocontext(NULL)
{
// open file
if(av_open_input_file(&m_formatCtx, filename.c_str(), NULL, 0, NULL)!=0)
AUD_THROW(AUD_ERROR_FILE, fileopen_error);
try
{
init();
}
catch(AUD_Exception&)
{
av_close_input_file(m_formatCtx);
throw;
}
}
static const char* streamopen_error = "AUD_FFMPEGReader: Stream couldn't be "
"opened.";
AUD_FFMPEGReader::AUD_FFMPEGReader(AUD_Reference<AUD_Buffer> buffer) :
m_pkgbuf(AVCODEC_MAX_AUDIO_FRAME_SIZE<<1),
m_membuffer(buffer)
{
m_byteiocontext = (ByteIOContext*)av_mallocz(sizeof(ByteIOContext));
if(init_put_byte(m_byteiocontext, (data_t*)buffer.get()->getBuffer(),
buffer.get()->getSize(), 0, NULL, NULL, NULL, NULL) != 0)
{
av_free(m_byteiocontext);
AUD_THROW(AUD_ERROR_FILE, fileopen_error);
}
AVProbeData probe_data;
probe_data.filename = "";
probe_data.buf = (data_t*)buffer.get()->getBuffer();
probe_data.buf_size = buffer.get()->getSize();
AVInputFormat* fmt = av_probe_input_format(&probe_data, 1);
// open stream
if(av_open_input_stream(&m_formatCtx, m_byteiocontext, "", fmt, NULL)!=0)
{
av_free(m_byteiocontext);
AUD_THROW(AUD_ERROR_FILE, streamopen_error);
}
try
{
init();
}
catch(AUD_Exception&)
{
av_close_input_stream(m_formatCtx);
av_free(m_byteiocontext);
throw;
}
}
AUD_FFMPEGReader::~AUD_FFMPEGReader()
{
avcodec_close(m_codecCtx);
if(m_byteiocontext)
{
av_close_input_stream(m_formatCtx);
av_free(m_byteiocontext);
}
else
av_close_input_file(m_formatCtx);
}
bool AUD_FFMPEGReader::isSeekable() const
{
return true;
}
void AUD_FFMPEGReader::seek(int position)
{
if(position >= 0)
{
// a value < 0 tells us that seeking failed
if(av_seek_frame(m_formatCtx,
-1,
(uint64_t)(((uint64_t)position *
(uint64_t)AV_TIME_BASE) /
(uint64_t)m_specs.rate),
AVSEEK_FLAG_BACKWARD | AVSEEK_FLAG_ANY) >= 0)
{
avcodec_flush_buffers(m_codecCtx);
m_position = position;
AVPacket packet;
bool search = true;
while(search && av_read_frame(m_formatCtx, &packet) >= 0)
{
// is it a frame from the audio stream?
if(packet.stream_index == m_stream)
{
// decode the package
m_pkgbuf_left = decode(&packet, m_pkgbuf);
search = false;
// check position
if(packet.pts != AV_NOPTS_VALUE)
{
// calculate real position, and read to frame!
m_position = packet.pts *
av_q2d(m_formatCtx->streams[m_stream]->time_base) *
m_specs.rate;
if(m_position < position)
{
// read until we're at the right position
int length = AUD_DEFAULT_BUFFER_SIZE;
sample_t* buffer;
for(int len = position - m_position;
length == AUD_DEFAULT_BUFFER_SIZE;
len -= AUD_DEFAULT_BUFFER_SIZE)
{
if(len < AUD_DEFAULT_BUFFER_SIZE)
length = len;
read(length, buffer);
}
}
}
}
av_free_packet(&packet);
}
}
else
{
// Seeking failed, do nothing.
}
}
}
int AUD_FFMPEGReader::getLength() const
{
// return approximated remaning size
return (int)((m_formatCtx->duration * m_codecCtx->sample_rate)
/ AV_TIME_BASE)-m_position;
}
int AUD_FFMPEGReader::getPosition() const
{
return m_position;
}
AUD_Specs AUD_FFMPEGReader::getSpecs() const
{
return m_specs.specs;
}
void AUD_FFMPEGReader::read(int & length, sample_t* & buffer)
{
// read packages and decode them
AVPacket packet;
int data_size = 0;
int pkgbuf_pos;
int left = length;
int sample_size = AUD_DEVICE_SAMPLE_SIZE(m_specs);
// resize output buffer if necessary
if(m_buffer.getSize() < length * AUD_SAMPLE_SIZE(m_specs))
m_buffer.resize(length * AUD_SAMPLE_SIZE(m_specs));
buffer = m_buffer.getBuffer();
pkgbuf_pos = m_pkgbuf_left;
m_pkgbuf_left = 0;
// there may still be data in the buffer from the last call
if(pkgbuf_pos > 0)
{
data_size = AUD_MIN(pkgbuf_pos, left * sample_size);
m_convert((data_t*) buffer, (data_t*) m_pkgbuf.getBuffer(),
data_size / AUD_FORMAT_SIZE(m_specs.format));
buffer += data_size / AUD_FORMAT_SIZE(m_specs.format);
left -= data_size/sample_size;
}
// for each frame read as long as there isn't enough data already
while((left > 0) && (av_read_frame(m_formatCtx, &packet) >= 0))
{
// is it a frame from the audio stream?
if(packet.stream_index == m_stream)
{
// decode the package
pkgbuf_pos = decode(&packet, m_pkgbuf);
// copy to output buffer
data_size = AUD_MIN(pkgbuf_pos, left * sample_size);
m_convert((data_t*) buffer, (data_t*) m_pkgbuf.getBuffer(),
data_size / AUD_FORMAT_SIZE(m_specs.format));
buffer += data_size / AUD_FORMAT_SIZE(m_specs.format);
left -= data_size/sample_size;
}
av_free_packet(&packet);
}
// read more data than necessary?
if(pkgbuf_pos > data_size)
{
m_pkgbuf_left = pkgbuf_pos-data_size;
memmove(m_pkgbuf.getBuffer(),
((data_t*)m_pkgbuf.getBuffer())+data_size,
pkgbuf_pos-data_size);
}
buffer = m_buffer.getBuffer();
if(left > 0)
length -= left;
m_position += length;
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_FFMPEGREADER
#define AUD_FFMPEGREADER
#include "AUD_ConverterFunctions.h"
#include "AUD_IReader.h"
#include "AUD_Reference.h"
#include "AUD_Buffer.h"
#include <string>
struct AVCodecContext;
extern "C" {
#include <libavformat/avformat.h>
}
/**
* This class reads a sound file via ffmpeg.
* \warning Seeking may not be accurate! Moreover the position is updated after
* a buffer reading call. So calling getPosition right after seek
* normally results in a wrong value.
* \warning Playback of an ogg with some outdated ffmpeg versions results in a
* segfault on windows.
*/
class AUD_FFMPEGReader : public AUD_IReader
{
private:
/**
* The current position in samples.
*/
int m_position;
/**
* The playback buffer.
*/
AUD_Buffer m_buffer;
/**
* The specification of the audio data.
*/
AUD_DeviceSpecs m_specs;
/**
* The buffer for package reading.
*/
AUD_Buffer m_pkgbuf;
/**
* The count of samples still available from the last read package.
*/
int m_pkgbuf_left;
/**
* The AVFormatContext structure for using ffmpeg.
*/
AVFormatContext* m_formatCtx;
/**
* The AVCodecContext structure for using ffmpeg.
*/
AVCodecContext* m_codecCtx;
/**
* The ByteIOContext to read the data from.
*/
ByteIOContext* m_byteiocontext;
/**
* The stream ID in the file.
*/
int m_stream;
/**
* Converter function.
*/
AUD_convert_f m_convert;
/**
* The memory file to read from, only saved to keep the buffer alive.
*/
AUD_Reference<AUD_Buffer> m_membuffer;
/**
* Decodes a packet into the given buffer.
* \param packet The AVPacket to decode.
* \param buffer The target buffer.
* \return The count of read bytes.
*/
int decode(AVPacket* packet, AUD_Buffer& buffer);
/**
* Initializes the object.
*/
void init();
// hide copy constructor and operator=
AUD_FFMPEGReader(const AUD_FFMPEGReader&);
AUD_FFMPEGReader& operator=(const AUD_FFMPEGReader&);
public:
/**
* Creates a new reader.
* \param filename The path to the file to be read.
* \exception AUD_Exception Thrown if the file specified does not exist or
* cannot be read with ffmpeg.
*/
AUD_FFMPEGReader(std::string filename);
/**
* Creates a new reader.
* \param buffer The buffer to read from.
* \exception AUD_Exception Thrown if the buffer specified cannot be read
* with ffmpeg.
*/
AUD_FFMPEGReader(AUD_Reference<AUD_Buffer> buffer);
/**
* Destroys the reader and closes the file.
*/
virtual ~AUD_FFMPEGReader();
virtual bool isSeekable() const;
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual AUD_Specs getSpecs() const;
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_FFMPEGREADER

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#
# $Id$
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): none yet.
#
# ***** END GPL LICENSE BLOCK *****
#
#
LIBNAME = aud_ffmpeg
DIR = $(OCGDIR)/intern/audaspace
include nan_compile.mk
CCFLAGS += $(LEVEL_1_CPP_WARNINGS)
CPPFLAGS += $(NAN_FFMPEGCFLAGS)
CPPFLAGS += -I../intern
CPPFLAGS += -I..
CPPFLAGS += -I.

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_BandPassFactory.h"
#include "AUD_BandPassReader.h"
AUD_BandPassFactory::AUD_BandPassFactory(AUD_IFactory* factory, float low,
float high) :
AUD_EffectFactory(factory),
m_low(low),
m_high(high) {}
AUD_BandPassFactory::AUD_BandPassFactory(float low, float high) :
AUD_EffectFactory(0),
m_low(low),
m_high(high) {}
float AUD_BandPassFactory::getLow()
{
return m_low;
}
float AUD_BandPassFactory::getHigh()
{
return m_high;
}
void AUD_BandPassFactory::setLow(float low)
{
m_low = low;
}
void AUD_BandPassFactory::setHigh(float high)
{
m_high = high;
}
AUD_IReader* AUD_BandPassFactory::createReader()
{
AUD_IReader* reader = getReader();
if(reader != 0)
{
reader = new AUD_BandPassReader(reader, m_low, m_high);
AUD_NEW("reader")
}
return reader;
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_BANDPASSFACTORY
#define AUD_BANDPASSFACTORY
#include "AUD_EffectFactory.h"
/**
* This factory creates a band pass filter for a sound wave.
*/
class AUD_BandPassFactory : public AUD_EffectFactory
{
private:
/**
* The lowest frequency to be passed.
*/
float m_low;
/**
* The highest frequency to be passed.
*/
float m_high;
public:
/**
* Creates a new band pass factory.
* \param factory The input factory.
* \param low The lowest passed frequency.
* \param high The highest passed frequency.
*/
AUD_BandPassFactory(AUD_IFactory* factory, float low, float high);
/**
* Creates a new band pass factory.
* \param low The lowest passed frequency.
* \param high The highest passed frequency.
*/
AUD_BandPassFactory(float low, float high);
/**
* Returns the lowest passed frequency.
*/
float getLow();
/**
* Returns the highest passed frequency.
*/
float getHigh();
/**
* Sets the lowest passed frequency.
* \param low The lowest passed frequency.
*/
void setLow(float low);
/**
* Sets the highest passed frequency.
* \param high The highest passed frequency.
*/
void setHigh(float hight);
virtual AUD_IReader* createReader();
};
#endif //AUD_BANDPASSFACTORY

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_BandPassReader.h"
#include "AUD_Buffer.h"
#include <cstring>
#include <stdio.h>
AUD_BandPassReader::AUD_BandPassReader(AUD_IReader* reader, float low,
float high) :
AUD_EffectReader(reader), m_low(low), m_high(high)
{
m_buffer = new AUD_Buffer(); AUD_NEW("buffer")
m_in = new AUD_Buffer(); AUD_NEW("buffer")
m_out = new AUD_Buffer(); AUD_NEW("buffer")
m_length = 0;
}
AUD_BandPassReader::~AUD_BandPassReader()
{
if(m_length != 0)
{
fftw_destroy_plan(m_forward);
fftw_destroy_plan(m_backward);
}
delete m_buffer; AUD_DELETE("buffer")
delete m_in; AUD_DELETE("buffer")
delete m_out; AUD_DELETE("buffer")
}
AUD_ReaderType AUD_BandPassReader::getType()
{
return m_reader->getType();
}
void AUD_BandPassReader::read(int & length, sample_t* & buffer)
{
AUD_Specs specs = m_reader->getSpecs();
m_reader->read(length, buffer);
if(length > 0)
{
if(length * AUD_SAMPLE_SIZE(specs) > m_buffer->getSize())
m_buffer->resize(length * AUD_SAMPLE_SIZE(specs));
if(length != m_length)
{
if(m_length != 0)
{
fftw_destroy_plan(m_forward);
fftw_destroy_plan(m_backward);
}
m_length = length;
if(m_length * sizeof(double) > m_in->getSize())
{
m_in->resize(m_length * sizeof(double));
m_out->resize((m_length / 2 + 1) * sizeof(fftw_complex));
}
m_forward = fftw_plan_dft_r2c_1d(m_length,
(double*)m_in->getBuffer(),
(fftw_complex*)m_out->getBuffer(),
FFTW_ESTIMATE);
m_backward = fftw_plan_dft_c2r_1d(m_length,
(fftw_complex*)m_out->getBuffer(),
(double*)m_in->getBuffer(),
FFTW_ESTIMATE);
}
double* target = (double*) m_in->getBuffer();
sample_t* target2 = m_buffer->getBuffer();
fftw_complex* complex = (fftw_complex*) m_out->getBuffer();
float frequency;
for(int channel = 0; channel < specs.channels; channel++)
{
for(int i = 0; i < m_length; i++)
target[i] = buffer[i * specs.channels + channel];
fftw_execute(m_forward);
for(int i = 0; i < m_length / 2 + 1; i++)
{
frequency = i * specs.rate / (m_length / 2.0f + 1.0f);
if((frequency < m_low) || (frequency > m_high))
complex[i][0] = complex[i][1] = 0.0;
}
fftw_execute(m_backward);
for(int i = 0; i < m_length; i++)
target2[i * specs.channels + channel] = target[i] / m_length;
}
}
buffer = m_buffer->getBuffer();
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_BANDPASSREADER
#define AUD_BANDPASSREADER
#include <fftw3.h>
#include "AUD_EffectReader.h"
class AUD_Buffer;
/**
* This class only passes a specific frequency band of another reader.
*/
class AUD_BandPassReader : public AUD_EffectReader
{
private:
/**
* The playback buffer.
*/
AUD_Buffer *m_buffer;
/**
* The input buffer for fourier transformations.
*/
AUD_Buffer *m_in;
/**
* The output buffer for fourier transformations.
*/
AUD_Buffer *m_out;
/**
* The lowest passed frequency.
*/
float m_low;
/**
* The highest passed frequency.
*/
float m_high;
/**
* The fftw plan for forward transformation.
*/
fftw_plan m_forward;
/**
* The fftw plan for backward transformation.
*/
fftw_plan m_backward;
/**
* The length of the plans.
*/
int m_length;
public:
/**
* Creates a new band pass reader.
* \param reader The reader to read from.
* \param low The lowest passed frequency.
* \param high The highest passed frequency.
*/
AUD_BandPassReader(AUD_IReader* reader, float low, float high);
/**
* Destroys the reader.
*/
virtual ~AUD_BandPassReader();
virtual AUD_ReaderType getType();
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_BANDPASSREADER

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#
# $Id$
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): none yet.
#
# ***** END GPL LICENSE BLOCK *****
#
#
LIBNAME = aud_fftw
DIR = $(OCGDIR)/intern/audaspace
include nan_compile.mk
CCFLAGS += $(LEVEL_1_CPP_WARNINGS)
CPPFLAGS += -I../intern
CPPFLAGS += -I../FX
CPPFLAGS += -I..
CPPFLAGS += -I.
CPPFLAGS += -I$(BF_FFTW3)/include

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_3DMATH
#define AUD_3DMATH
class AUD_Quaternion
{
private:
union
{
float m_v[4];
struct
{
float m_w;
float m_x;
float m_y;
float m_z;
};
};
public:
/**
* Creates a new quaternion.
* \param w The w component.
* \param x The x component.
* \param y The y component.
* \param z The z component.
*/
inline AUD_Quaternion(float w, float x, float y, float z) :
m_w(w), m_x(x), m_y(y), m_z(z)
{
}
/**
* Retrieves the w component of the quarternion.
* \return The w component.
*/
inline const float& w() const
{
return m_w;
}
/**
* Retrieves the x component of the quarternion.
* \return The x component.
*/
inline const float& x() const
{
return m_x;
}
/**
* Retrieves the y component of the quarternion.
* \return The y component.
*/
inline const float& y() const
{
return m_y;
}
/**
* Retrieves the z component of the quarternion.
* \return The z component.
*/
inline const float& z() const
{
return m_z;
}
/**
* Retrieves the components of the vector.
* \param destination Where the 4 float values should be saved to.
*/
inline void get(float* destination) const
{
destination[0] = m_w;
destination[1] = m_x;
destination[2] = m_y;
destination[3] = m_z;
}
/**
* Retrieves the components of the vector.
* \return The components as float[4].
*/
inline const float* get() const
{
return m_v;
}
};
class AUD_Vector3
{
private:
union
{
float m_v[3];
struct
{
float m_x;
float m_y;
float m_z;
};
};
public:
/**
* Creates a new 3 dimensional vector.
* \param x The x component.
* \param y The y component.
* \param z The z component.
*/
inline AUD_Vector3(float x, float y, float z) :
m_x(x), m_y(y), m_z(z)
{
}
/**
* Retrieves the x component of the vector.
* \return The x component.
*/
inline const float& x() const
{
return m_x;
}
/**
* Retrieves the y component of the vector.
* \return The y component.
*/
inline const float& y() const
{
return m_y;
}
/**
* Retrieves the z component of the vector.
* \return The z component.
*/
inline const float& z() const
{
return m_z;
}
/**
* Retrieves the components of the vector.
* \param destination Where the 3 float values should be saved to.
*/
inline void get(float* destination) const
{
destination[0] = m_x;
destination[1] = m_y;
destination[2] = m_z;
}
/**
* Retrieves the components of the vector.
* \return The components as float[3].
*/
inline const float* get() const
{
return m_v;
}
};
#endif //AUD_3DMATH

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_Buffer.h"
#include "AUD_Space.h"
#include <cstring>
#include <cstdlib>
#define AUD_ALIGN(a) (a + 16 - ((long)a & 15))
AUD_Buffer::AUD_Buffer(int size)
{
m_size = size;
m_buffer = (data_t*) malloc(size+16);
}
AUD_Buffer::~AUD_Buffer()
{
free(m_buffer);
}
sample_t* AUD_Buffer::getBuffer() const
{
return (sample_t*) AUD_ALIGN(m_buffer);
}
int AUD_Buffer::getSize() const
{
return m_size;
}
void AUD_Buffer::resize(int size, bool keep)
{
if(keep)
{
data_t* buffer = (data_t*) malloc(size + 16);
memcpy(AUD_ALIGN(buffer), AUD_ALIGN(m_buffer), AUD_MIN(size, m_size));
free(m_buffer);
m_buffer = buffer;
}
else
m_buffer = (data_t*) realloc(m_buffer, size + 16);
m_size = size;
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_BUFFER
#define AUD_BUFFER
#include "AUD_Space.h"
/**
* This class is a simple buffer in RAM which is 16 Byte aligned and provides
* resize functionality.
*/
class AUD_Buffer
{
private:
/// The size of the buffer in bytes.
int m_size;
/// The pointer to the buffer memory.
data_t* m_buffer;
// hide copy constructor and operator=
AUD_Buffer(const AUD_Buffer&);
AUD_Buffer& operator=(const AUD_Buffer&);
public:
/**
* Creates a new buffer.
* \param size The size of the buffer in bytes.
*/
AUD_Buffer(int size = 0);
/**
* Destroys the buffer.
*/
~AUD_Buffer();
/**
* Returns the pointer to the buffer in memory.
*/
sample_t* getBuffer() const;
/**
* Returns the size of the buffer in bytes.
*/
int getSize() const;
/**
* Resizes the buffer.
* \param size The new size of the buffer, measured in bytes.
* \param keep Whether to keep the old data. If the new buffer is smaller,
* the data at the end will be lost.
*/
void resize(int size, bool keep = false);
};
#endif //AUD_BUFFER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_BufferReader.h"
#include "AUD_Buffer.h"
#include "AUD_Space.h"
AUD_BufferReader::AUD_BufferReader(AUD_Reference<AUD_Buffer> buffer,
AUD_Specs specs) :
m_position(0), m_buffer(buffer), m_specs(specs)
{
}
bool AUD_BufferReader::isSeekable() const
{
return true;
}
void AUD_BufferReader::seek(int position)
{
m_position = position;
}
int AUD_BufferReader::getLength() const
{
return m_buffer.get()->getSize() / AUD_SAMPLE_SIZE(m_specs);
}
int AUD_BufferReader::getPosition() const
{
return m_position;
}
AUD_Specs AUD_BufferReader::getSpecs() const
{
return m_specs;
}
void AUD_BufferReader::read(int & length, sample_t* & buffer)
{
int sample_size = AUD_SAMPLE_SIZE(m_specs);
buffer = m_buffer.get()->getBuffer() + m_position * m_specs.channels;
// in case the end of the buffer is reached
if(m_buffer.get()->getSize() < (m_position + length) * sample_size)
length = m_buffer.get()->getSize() / sample_size - m_position;
if(length < 0)
length = 0;
m_position += length;
}

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#ifndef AUD_BUFFERREADER
#define AUD_BUFFERREADER
#include "AUD_IReader.h"
#include "AUD_Reference.h"
class AUD_Buffer;
/**
* This class represents a simple reader from a buffer that exists in memory.
* \warning Notice that the buffer used for creating the reader must exist as
* long as the reader exists.
*/
class AUD_BufferReader : public AUD_IReader
{
private:
/**
* The current position in the buffer.
*/
int m_position;
/**
* The buffer that is read.
*/
AUD_Reference<AUD_Buffer> m_buffer;
/**
* The specification of the sample data in the buffer.
*/
AUD_Specs m_specs;
// hide copy constructor and operator=
AUD_BufferReader(const AUD_BufferReader&);
AUD_BufferReader& operator=(const AUD_BufferReader&);
public:
/**
* Creates a new buffer reader.
* \param buffer The buffer to read from.
* \param specs The specification of the sample data in the buffer.
*/
AUD_BufferReader(AUD_Reference<AUD_Buffer> buffer, AUD_Specs specs);
virtual bool isSeekable() const;
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual AUD_Specs getSpecs() const;
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_BUFFERREADER

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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
// needed for INT64_C
#ifndef __STDC_CONSTANT_MACROS
#define __STDC_CONSTANT_MACROS
#endif
#ifndef DISABLE_PYTHON
#include "AUD_PyInit.h"
#include "AUD_PyAPI.h"
Device* g_device;
bool g_pyinitialized = false;
#endif
#include <cstdlib>
#include <cstring>
#include <cmath>
#include "AUD_NULLDevice.h"
#include "AUD_I3DDevice.h"
#include "AUD_FileFactory.h"
#include "AUD_StreamBufferFactory.h"
#include "AUD_DelayFactory.h"
#include "AUD_LimiterFactory.h"
#include "AUD_PingPongFactory.h"
#include "AUD_LoopFactory.h"
#include "AUD_RectifyFactory.h"
#include "AUD_EnvelopeFactory.h"
#include "AUD_LinearResampleFactory.h"
#include "AUD_LowpassFactory.h"
#include "AUD_HighpassFactory.h"
#include "AUD_AccumulatorFactory.h"
#include "AUD_SumFactory.h"
#include "AUD_SquareFactory.h"
#include "AUD_ChannelMapperFactory.h"
#include "AUD_Buffer.h"
#include "AUD_ReadDevice.h"
#include "AUD_IReader.h"
#include "AUD_SequencerFactory.h"
#include "AUD_SilenceFactory.h"
#ifdef WITH_SDL
#include "AUD_SDLDevice.h"
#endif
#ifdef WITH_OPENAL
#include "AUD_OpenALDevice.h"
#endif
#ifdef WITH_JACK
#include "AUD_JackDevice.h"
#endif
#ifdef WITH_FFMPEG
extern "C" {
#include <libavformat/avformat.h>
}
#endif
#include <cassert>
typedef AUD_IFactory AUD_Sound;
typedef AUD_ReadDevice AUD_Device;
typedef AUD_Handle AUD_Channel;
#define AUD_CAPI_IMPLEMENTATION
#include "AUD_C-API.h"
#ifndef NULL
#define NULL 0
#endif
static AUD_IDevice* AUD_device = NULL;
static AUD_I3DDevice* AUD_3ddevice = NULL;
void AUD_initOnce()
{
#ifdef WITH_FFMPEG
av_register_all();
#endif
}
int AUD_init(AUD_DeviceType device, AUD_DeviceSpecs specs, int buffersize)
{
AUD_IDevice* dev = NULL;
if(AUD_device)
AUD_exit();
try
{
switch(device)
{
case AUD_NULL_DEVICE:
dev = new AUD_NULLDevice();
break;
#ifdef WITH_SDL
case AUD_SDL_DEVICE:
dev = new AUD_SDLDevice(specs, buffersize);
break;
#endif
#ifdef WITH_OPENAL
case AUD_OPENAL_DEVICE:
dev = new AUD_OpenALDevice(specs, buffersize);
break;
#endif
#ifdef WITH_JACK
case AUD_JACK_DEVICE:
dev = new AUD_JackDevice("Blender", specs, buffersize);
break;
#endif
default:
return false;
}
AUD_device = dev;
AUD_3ddevice = dynamic_cast<AUD_I3DDevice*>(AUD_device);
#ifndef DISABLE_PYTHON
if(g_pyinitialized)
{
g_device = (Device*)Device_empty();
if(g_device != NULL)
{
g_device->device = dev;
}
}
#endif
return true;
}
catch(AUD_Exception&)
{
return false;
}
}
void AUD_exit()
{
#ifndef DISABLE_PYTHON
if(g_device)
{
Py_XDECREF(g_device);
g_device = NULL;
}
else
#endif
if(AUD_device)
delete AUD_device;
AUD_device = NULL;
AUD_3ddevice = NULL;
}
#ifndef DISABLE_PYTHON
static PyObject* AUD_getCDevice(PyObject* self)
{
if(g_device)
{
Py_INCREF(g_device);
return (PyObject*)g_device;
}
Py_RETURN_NONE;
}
static PyMethodDef meth_getcdevice[] = {{ "device", (PyCFunction)AUD_getCDevice, METH_NOARGS,
"device()\n\n"
"Returns the application's :class:`Device`.\n\n"
":return: The application's :class:`Device`.\n"
":rtype: :class:`Device`"}};
PyObject* AUD_initPython()
{
PyObject* module = PyInit_aud();
PyModule_AddObject(module, "device", (PyObject *)PyCFunction_New(meth_getcdevice, NULL));
PyDict_SetItemString(PySys_GetObject("modules"), "aud", module);
if(AUD_device)
{
g_device = (Device*)Device_empty();
if(g_device != NULL)
{
g_device->device = AUD_device;
}
}
g_pyinitialized = true;
return module;
}
#endif
void AUD_lock()
{
assert(AUD_device);
AUD_device->lock();
}
void AUD_unlock()
{
assert(AUD_device);
AUD_device->unlock();
}
AUD_SoundInfo AUD_getInfo(AUD_Sound* sound)
{
assert(sound);
AUD_SoundInfo info;
info.specs.channels = AUD_CHANNELS_INVALID;
info.specs.rate = AUD_RATE_INVALID;
info.length = 0.0f;
try
{
AUD_IReader* reader = sound->createReader();
if(reader)
{
info.specs = reader->getSpecs();
info.length = reader->getLength() / (float) info.specs.rate;
}
}
catch(AUD_Exception&)
{
}
return info;
}
AUD_Sound* AUD_load(const char* filename)
{
assert(filename);
return new AUD_FileFactory(filename);
}
AUD_Sound* AUD_loadBuffer(unsigned char* buffer, int size)
{
assert(buffer);
return new AUD_FileFactory(buffer, size);
}
AUD_Sound* AUD_bufferSound(AUD_Sound* sound)
{
assert(sound);
try
{
return new AUD_StreamBufferFactory(sound);
}
catch(AUD_Exception&)
{
return NULL;
}
}
AUD_Sound* AUD_delaySound(AUD_Sound* sound, float delay)
{
assert(sound);
try
{
return new AUD_DelayFactory(sound, delay);
}
catch(AUD_Exception&)
{
return NULL;
}
}
AUD_Sound* AUD_limitSound(AUD_Sound* sound, float start, float end)
{
assert(sound);
try
{
return new AUD_LimiterFactory(sound, start, end);
}
catch(AUD_Exception&)
{
return NULL;
}
}
AUD_Sound* AUD_pingpongSound(AUD_Sound* sound)
{
assert(sound);
try
{
return new AUD_PingPongFactory(sound);
}
catch(AUD_Exception&)
{
return NULL;
}
}
AUD_Sound* AUD_loopSound(AUD_Sound* sound)
{
assert(sound);
try
{
return new AUD_LoopFactory(sound);
}
catch(AUD_Exception&)
{
return NULL;
}
}
int AUD_setLoop(AUD_Channel* handle, int loops)
{
if(handle)
{
try
{
return AUD_device->setLoopCount(handle, loops);
}
catch(AUD_Exception&)
{
}
}
return false;
}
AUD_Sound* AUD_rectifySound(AUD_Sound* sound)
{
assert(sound);
try
{
return new AUD_RectifyFactory(sound);
}
catch(AUD_Exception&)
{
return NULL;
}
}
void AUD_unload(AUD_Sound* sound)
{
assert(sound);
delete sound;
}
AUD_Channel* AUD_play(AUD_Sound* sound, int keep)
{
assert(AUD_device);
assert(sound);
try
{
return AUD_device->play(sound, keep);
}
catch(AUD_Exception&)
{
return NULL;
}
}
int AUD_pause(AUD_Channel* handle)
{
assert(AUD_device);
return AUD_device->pause(handle);
}
int AUD_resume(AUD_Channel* handle)
{
assert(AUD_device);
return AUD_device->resume(handle);
}
int AUD_stop(AUD_Channel* handle)
{
if(AUD_device)
return AUD_device->stop(handle);
return false;
}
int AUD_setKeep(AUD_Channel* handle, int keep)
{
assert(AUD_device);
return AUD_device->setKeep(handle, keep);
}
int AUD_seek(AUD_Channel* handle, float seekTo)
{
assert(AUD_device);
return AUD_device->seek(handle, seekTo);
}
float AUD_getPosition(AUD_Channel* handle)
{
assert(AUD_device);
return AUD_device->getPosition(handle);
}
AUD_Status AUD_getStatus(AUD_Channel* handle)
{
assert(AUD_device);
return AUD_device->getStatus(handle);
}
int AUD_setListenerLocation(const float* location)
{
assert(AUD_device);
if(AUD_3ddevice)
{
AUD_Vector3 v(location[0], location[1], location[2]);
AUD_3ddevice->setListenerLocation(v);
return true;
}
return false;
}
int AUD_setListenerVelocity(const float* velocity)
{
assert(AUD_device);
if(AUD_3ddevice)
{
AUD_Vector3 v(velocity[0], velocity[1], velocity[2]);
AUD_3ddevice->setListenerVelocity(v);
return true;
}
return false;
}
int AUD_setListenerOrientation(const float* orientation)
{
assert(AUD_device);
if(AUD_3ddevice)
{
AUD_Quaternion q(orientation[3], orientation[0], orientation[1], orientation[2]);
AUD_3ddevice->setListenerOrientation(q);
return true;
}
return false;
}
int AUD_setSpeedOfSound(float speed)
{
assert(AUD_device);
if(AUD_3ddevice)
{
AUD_3ddevice->setSpeedOfSound(speed);
return true;
}
return false;
}
int AUD_setDopplerFactor(float factor)
{
assert(AUD_device);
if(AUD_3ddevice)
{
AUD_3ddevice->setDopplerFactor(factor);
return true;
}
return false;
}
int AUD_setDistanceModel(AUD_DistanceModel model)
{
assert(AUD_device);
if(AUD_3ddevice)
{
AUD_3ddevice->setDistanceModel(model);
return true;
}
return false;
}
int AUD_setSourceLocation(AUD_Channel* handle, const float* location)
{
assert(AUD_device);
if(AUD_3ddevice)
{
AUD_Vector3 v(location[0], location[1], location[2]);
return AUD_3ddevice->setSourceLocation(handle, v);
}
return false;
}
int AUD_setSourceVelocity(AUD_Channel* handle, const float* velocity)
{
assert(AUD_device);
if(AUD_3ddevice)
{
AUD_Vector3 v(velocity[0], velocity[1], velocity[2]);
return AUD_3ddevice->setSourceVelocity(handle, v);
}
return false;
}
int AUD_setSourceOrientation(AUD_Channel* handle, const float* orientation)
{
assert(AUD_device);
if(AUD_3ddevice)
{
AUD_Quaternion q(orientation[3], orientation[0], orientation[1], orientation[2]);
return AUD_3ddevice->setSourceOrientation(handle, q);
}
return false;
}
int AUD_setRelative(AUD_Channel* handle, int relative)
{
assert(AUD_device);
if(AUD_3ddevice)
{
return AUD_3ddevice->setRelative(handle, relative);
}
return false;
}
int AUD_setVolumeMaximum(AUD_Channel* handle, float volume)
{
assert(AUD_device);
if(AUD_3ddevice)
{
return AUD_3ddevice->setVolumeMaximum(handle, volume);
}
return false;
}
int AUD_setVolumeMinimum(AUD_Channel* handle, float volume)
{
assert(AUD_device);
if(AUD_3ddevice)
{
return AUD_3ddevice->setVolumeMinimum(handle, volume);
}
return false;
}
int AUD_setDistanceMaximum(AUD_Channel* handle, float distance)
{
assert(AUD_device);
if(AUD_3ddevice)
{
return AUD_3ddevice->setDistanceMaximum(handle, distance);
}
return false;
}
int AUD_setDistanceReference(AUD_Channel* handle, float distance)
{
assert(AUD_device);
if(AUD_3ddevice)
{
return AUD_3ddevice->setDistanceReference(handle, distance);
}
return false;
}
int AUD_setAttenuation(AUD_Channel* handle, float factor)
{
assert(AUD_device);
if(AUD_3ddevice)
{
return AUD_3ddevice->setAttenuation(handle, factor);
}
return false;
}
int AUD_setConeAngleOuter(AUD_Channel* handle, float angle)
{
assert(AUD_device);
if(AUD_3ddevice)
{
return AUD_3ddevice->setConeAngleOuter(handle, angle);
}
return false;
}
int AUD_setConeAngleInner(AUD_Channel* handle, float angle)
{
assert(AUD_device);
if(AUD_3ddevice)
{
return AUD_3ddevice->setConeAngleInner(handle, angle);
}
return false;
}
int AUD_setConeVolumeOuter(AUD_Channel* handle, float volume)
{
assert(AUD_device);
if(AUD_3ddevice)
{
return AUD_3ddevice->setConeVolumeOuter(handle, volume);
}
return false;
}
int AUD_setSoundVolume(AUD_Channel* handle, float volume)
{
if(handle)
{
assert(AUD_device);
try
{
return AUD_device->setVolume(handle, volume);
}
catch(AUD_Exception&) {}
}
return false;
}
int AUD_setSoundPitch(AUD_Channel* handle, float pitch)
{
if(handle)
{
assert(AUD_device);
try
{
return AUD_device->setPitch(handle, pitch);
}
catch(AUD_Exception&) {}
}
return false;
}
AUD_Device* AUD_openReadDevice(AUD_DeviceSpecs specs)
{
try
{
return new AUD_ReadDevice(specs);
}
catch(AUD_Exception&)
{
return NULL;
}
}
AUD_Channel* AUD_playDevice(AUD_Device* device, AUD_Sound* sound, float seek)
{
assert(device);
assert(sound);
try
{
AUD_Channel* handle = device->play(sound);
device->seek(handle, seek);
return handle;
}
catch(AUD_Exception&)
{
return NULL;
}
}
int AUD_setDeviceVolume(AUD_Device* device, float volume)
{
assert(device);
try
{
device->setVolume(volume);
return true;
}
catch(AUD_Exception&) {}
return false;
}
int AUD_setDeviceSoundVolume(AUD_Device* device, AUD_Channel* handle,
float volume)
{
if(handle)
{
assert(device);
try
{
return device->setVolume(handle, volume);
}
catch(AUD_Exception&) {}
}
return false;
}
int AUD_readDevice(AUD_Device* device, data_t* buffer, int length)
{
assert(device);
assert(buffer);
try
{
return device->read(buffer, length);
}
catch(AUD_Exception&)
{
return false;
}
}
void AUD_closeReadDevice(AUD_Device* device)
{
assert(device);
try
{
delete device;
}
catch(AUD_Exception&)
{
}
}
float* AUD_readSoundBuffer(const char* filename, float low, float high,
float attack, float release, float threshold,
int accumulate, int additive, int square,
float sthreshold, int samplerate, int* length)
{
AUD_Buffer buffer;
AUD_DeviceSpecs specs;
specs.channels = AUD_CHANNELS_MONO;
specs.rate = (AUD_SampleRate)samplerate;
AUD_Sound* sound;
AUD_FileFactory file(filename);
AUD_ChannelMapperFactory mapper(&file, specs);
AUD_LowpassFactory lowpass(&mapper, high);
AUD_HighpassFactory highpass(&lowpass, low);
AUD_EnvelopeFactory envelope(&highpass, attack, release, threshold, 0.1f);
AUD_LinearResampleFactory resampler(&envelope, specs);
sound = &resampler;
AUD_SquareFactory squaref(sound, sthreshold);
if(square)
sound = &squaref;
AUD_AccumulatorFactory accumulator(sound, additive);
AUD_SumFactory sum(sound);
if(accumulate)
sound = &accumulator;
else if(additive)
sound = &sum;
AUD_IReader* reader = sound->createReader();
if(reader == NULL)
return NULL;
int len;
int position = 0;
sample_t* readbuffer;
do
{
len = samplerate;
buffer.resize((position + len) * sizeof(float), true);
reader->read(len, readbuffer);
memcpy(buffer.getBuffer() + position, readbuffer, len * sizeof(float));
position += len;
} while(len != 0);
delete reader;
float* result = (float*)malloc(position * sizeof(float));
memcpy(result, buffer.getBuffer(), position * sizeof(float));
*length = position;
return result;
}
static void pauseSound(AUD_Channel* handle)
{
assert(AUD_device);
AUD_device->pause(handle);
}
AUD_Channel* AUD_pauseAfter(AUD_Channel* handle, float seconds)
{
assert(AUD_device);
AUD_SilenceFactory silence;
AUD_LimiterFactory limiter(&silence, 0, seconds);
try
{
AUD_Channel* channel = AUD_device->play(&limiter);
AUD_device->setStopCallback(channel, (stopCallback)pauseSound, handle);
return channel;
}
catch(AUD_Exception&)
{
return NULL;
}
}
AUD_Sound* AUD_createSequencer(void* data, AUD_volumeFunction volume)
{
/* AUD_XXX should be this: but AUD_createSequencer is called before the device
* is initialized.
return new AUD_SequencerFactory(AUD_device->getSpecs().specs, data, volume);
*/
AUD_Specs specs;
specs.channels = AUD_CHANNELS_STEREO;
specs.rate = AUD_RATE_44100;
return new AUD_SequencerFactory(specs, data, volume);
}
void AUD_destroySequencer(AUD_Sound* sequencer)
{
delete ((AUD_SequencerFactory*)sequencer);
}
AUD_SequencerEntry* AUD_addSequencer(AUD_Sound** sequencer, AUD_Sound* sound,
float begin, float end, float skip, void* data)
{
return ((AUD_SequencerFactory*)sequencer)->add((AUD_IFactory**) sound, begin, end, skip, data);
}
void AUD_removeSequencer(AUD_Sound* sequencer, AUD_SequencerEntry* entry)
{
((AUD_SequencerFactory*)sequencer)->remove(entry);
}
void AUD_moveSequencer(AUD_Sound* sequencer, AUD_SequencerEntry* entry,
float begin, float end, float skip)
{
((AUD_SequencerFactory*)sequencer)->move(entry, begin, end, skip);
}
void AUD_muteSequencer(AUD_Sound* sequencer, AUD_SequencerEntry* entry, char mute)
{
((AUD_SequencerFactory*)sequencer)->mute(entry, mute);
}
int AUD_readSound(AUD_Sound* sound, sample_t* buffer, int length)
{
AUD_DeviceSpecs specs;
sample_t* buf;
specs.rate = AUD_RATE_INVALID;
specs.channels = AUD_CHANNELS_MONO;
specs.format = AUD_FORMAT_INVALID;
AUD_ChannelMapperFactory mapper(sound, specs);
AUD_IReader* reader = mapper.createReader();
int len = reader->getLength();
float samplejump = (float)len / (float)length;
float min, max;
for(int i = 0; i < length; i++)
{
len = floor(samplejump * (i+1)) - floor(samplejump * i);
reader->read(len, buf);
if(len < 1)
{
length = i;
break;
}
max = min = *buf;
for(int j = 1; j < len; j++)
{
if(buf[j] < min)
min = buf[j];
if(buf[j] > max)
max = buf[j];
buffer[i * 2] = min;
buffer[i * 2 + 1] = max;
}
}
delete reader;
return length;
}
void AUD_startPlayback()
{
#ifdef WITH_JACK
AUD_JackDevice* device = dynamic_cast<AUD_JackDevice*>(AUD_device);
if(device)
device->startPlayback();
#endif
}
void AUD_stopPlayback()
{
#ifdef WITH_JACK
AUD_JackDevice* device = dynamic_cast<AUD_JackDevice*>(AUD_device);
if(device)
device->stopPlayback();
#endif
}
void AUD_seekSequencer(AUD_Channel* handle, float time)
{
#ifdef WITH_JACK
AUD_JackDevice* device = dynamic_cast<AUD_JackDevice*>(AUD_device);
if(device)
device->seekPlayback(time);
else
#endif
{
AUD_device->seek(handle, time);
}
}
float AUD_getSequencerPosition(AUD_Channel* handle)
{
#ifdef WITH_JACK
AUD_JackDevice* device = dynamic_cast<AUD_JackDevice*>(AUD_device);
if(device)
return device->getPlaybackPosition();
else
#endif
{
return AUD_device->getPosition(handle);
}
}
#ifdef WITH_JACK
void AUD_setSyncCallback(AUD_syncFunction function, void* data)
{
AUD_JackDevice* device = dynamic_cast<AUD_JackDevice*>(AUD_device);
if(device)
device->setSyncCallback(function, data);
}
#endif
int AUD_doesPlayback()
{
#ifdef WITH_JACK
AUD_JackDevice* device = dynamic_cast<AUD_JackDevice*>(AUD_device);
if(device)
return device->doesPlayback();
#endif
return -1;
}

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