blender/intern/audaspace/intern/AUD_C-API.h
Antony Riakiotakis 649a2bcc3d Politically correct terrible consequencer changes
This patch includes the work done in the terrible consequencer branch
that hasn't been merged to master minus a few controversial and WIP
stuff, like strip parenting, new sequence data structs and cuddly
widgets.

What is included:

* Strip extensions only when slipping. It can very easily be made an
option but with a few strips with overlapping durations it makes view
too crowded and difficult to make out.
* Threaded waveform loading + code that restores waveforms on undo (not
used though, since sound_load recreates everything. There's a patch for
review D876)
* Toggle to enable backdrop in the strip sequence editor
* Toggle to easily turn on/off waveform display
* Snapping during transform on sequence boundaries. Snapping to start or
end of selection depends on position of mouse when invoking the operator
* Snapping of timeline indicator in sequencer to strip boundaries. To
use just press and hold ctrl while dragging.

Reviewers: campbellbarton

Differential Revision: https://developer.blender.org/D904
2014-11-24 18:23:44 +01:00

783 lines
23 KiB
C++

/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* Copyright 2009-2011 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 General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Audaspace; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file AUD_C-API.h
* \ingroup audaspace
*/
#ifndef __AUD_C_API_H__
#define __AUD_C_API_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "AUD_Space.h"
/// Supported output devices.
typedef enum
{
AUD_NULL_DEVICE = 0,
AUD_SDL_DEVICE,
AUD_OPENAL_DEVICE,
AUD_JACK_DEVICE
} AUD_DeviceType;
/// Sound information structure.
typedef struct
{
AUD_Specs specs;
float length;
} AUD_SoundInfo;
#ifndef AUD_CAPI_IMPLEMENTATION
typedef void AUD_Sound;
typedef void AUD_Handle;
typedef void AUD_Device;
typedef void AUD_SEntry;
typedef float (*AUD_volumeFunction)(void *, void *, float);
typedef void (*AUD_syncFunction)(void *, int, float);
#endif
/**
* Initializes audio rutines (FFMPEG/Jack if it is enabled).
*/
extern void AUD_initOnce(void);
/**
* Unitinitializes an audio routines.
*/
extern void AUD_exitOnce(void);
/**
* Initializes an audio device.
* \param device The device type that should be used.
* \param specs The audio specification to be used.
* \param buffersize The buffersize for the device.
* \return Whether the device has been initialized.
*/
extern int AUD_init(AUD_DeviceType device, AUD_DeviceSpecs specs, int buffersize);
/**
* Unitinitializes an audio device.
*/
extern void AUD_exit(void);
/**
* Locks the playback device.
*/
extern void AUD_lock(void);
/**
* Unlocks the device.
*/
extern void AUD_unlock(void);
/**
* Returns information about a sound.
* \param sound The sound to get the info about.
* \return The AUD_SoundInfo structure with filled in data.
*/
extern AUD_SoundInfo AUD_getInfo(AUD_Sound *sound);
/**
* Loads a sound file.
* \param filename The filename of the sound file.
* \return A handle of the sound file.
*/
extern AUD_Sound *AUD_load(const char *filename);
/**
* Loads a sound file.
* \param buffer The buffer which contains the sound file.
* \param size The size of the buffer.
* \return A handle of the sound file.
*/
extern AUD_Sound *AUD_loadBuffer(unsigned char *buffer, int size);
/**
* Buffers a sound.
* \param sound The sound to buffer.
* \return A handle of the sound buffer.
*/
extern AUD_Sound *AUD_bufferSound(AUD_Sound *sound);
/**
* Rechannels the sound to be mono.
* \param sound The sound to rechannel.
* \return The mono sound.
*/
extern AUD_Sound *AUD_monoSound(AUD_Sound *sound);
/**
* Delays a sound.
* \param sound The sound to dealy.
* \param delay The delay in seconds.
* \return A handle of the delayed sound.
*/
extern AUD_Sound *AUD_delaySound(AUD_Sound *sound, float delay);
/**
* Limits a sound.
* \param sound The sound to limit.
* \param start The start time in seconds.
* \param end The stop time in seconds.
* \return A handle of the limited sound.
*/
extern AUD_Sound *AUD_limitSound(AUD_Sound *sound, float start, float end);
/**
* Ping pongs a sound.
* \param sound The sound to ping pong.
* \return A handle of the ping pong sound.
*/
extern AUD_Sound *AUD_pingpongSound(AUD_Sound *sound);
/**
* Loops a sound.
* \param sound The sound to loop.
* \return A handle of the looped sound.
*/
extern AUD_Sound *AUD_loopSound(AUD_Sound *sound);
/**
* Sets a remaining loop count of a looping sound that currently plays.
* \param handle The playback handle.
* \param loops The count of remaining loops, -1 for infinity.
* \return Whether the handle is valid.
*/
extern int AUD_setLoop(AUD_Handle *handle, int loops);
/**
* Rectifies a sound.
* \param sound The sound to rectify.
* \return A handle of the rectified sound.
*/
extern AUD_Sound *AUD_rectifySound(AUD_Sound *sound);
/**
* Unloads a sound of any type.
* \param sound The handle of the sound.
*/
extern void AUD_unload(AUD_Sound *sound);
/**
* Plays back a sound file.
* \param sound The handle of the sound file.
* \param keep When keep is true the sound source will not be deleted but set to
* paused when its end has been reached.
* \return A handle to the played back sound.
*/
extern AUD_Handle *AUD_play(AUD_Sound *sound, int keep);
/**
* Pauses a played back sound.
* \param handle The handle to the sound.
* \return Whether the handle has been playing or not.
*/
extern int AUD_pause(AUD_Handle *handle);
/**
* Resumes a paused sound.
* \param handle The handle to the sound.
* \return Whether the handle has been paused or not.
*/
extern int AUD_resume(AUD_Handle *handle);
/**
* Stops a playing or paused sound.
* \param handle The handle to the sound.
* \return Whether the handle has been valid or not.
*/
extern int AUD_stop(AUD_Handle *handle);
/**
* Sets the end behaviour of a playing or paused sound.
* \param handle The handle to the sound.
* \param keep When keep is true the sound source will not be deleted but set to
* paused when its end has been reached.
* \return Whether the handle has been valid or not.
*/
extern int AUD_setKeep(AUD_Handle *handle, int keep);
/**
* Seeks a playing or paused sound.
* \param handle The handle to the sound.
* \param seekTo From where the sound file should be played back in seconds.
* \return Whether the handle has been valid or not.
*/
extern int AUD_seek(AUD_Handle *handle, float seekTo);
/**
* Retrieves the playback position of a handle.
* \param handle The handle to the sound.
* \return The current playback position in seconds or 0.0 if the handle is
* invalid.
*/
extern float AUD_getPosition(AUD_Handle *handle);
/**
* Returns the status of a playing, paused or stopped sound.
* \param handle The handle to the sound.
* \return The status of the sound behind the handle.
*/
extern AUD_Status AUD_getStatus(AUD_Handle *handle);
/**
* Sets the listener location.
* \param location The new location.
*/
extern int AUD_setListenerLocation(const float location[3]);
/**
* Sets the listener velocity.
* \param velocity The new velocity.
*/
extern int AUD_setListenerVelocity(const float velocity[3]);
/**
* Sets the listener orientation.
* \param orientation The new orientation as quaternion.
*/
extern int AUD_setListenerOrientation(const float orientation[4]);
/**
* Sets the speed of sound.
* This value is needed for doppler effect calculation.
* \param speed The new speed of sound.
*/
extern int AUD_setSpeedOfSound(float speed);
/**
* Sets the doppler factor.
* This value is a scaling factor for the velocity vectors of sources and
* listener which is used while calculating the doppler effect.
* \param factor The new doppler factor.
*/
extern int AUD_setDopplerFactor(float factor);
/**
* Sets the distance model.
* \param model distance model.
*/
extern int AUD_setDistanceModel(AUD_DistanceModel model);
/**
* Sets the location of a source.
* \param handle The handle of the source.
* \param location The new location.
* \return Whether the action succeeded.
*/
extern int AUD_setSourceLocation(AUD_Handle *handle, const float location[3]);
/**
* Sets the velocity of a source.
* \param handle The handle of the source.
* \param velocity The new velocity.
* \return Whether the action succeeded.
*/
extern int AUD_setSourceVelocity(AUD_Handle *handle, const float velocity[3]);
/**
* Sets the orientation of a source.
* \param handle The handle of the source.
* \param orientation The new orientation as quaternion.
* \return Whether the action succeeded.
*/
extern int AUD_setSourceOrientation(AUD_Handle *handle, const float orientation[4]);
/**
* Sets whether the source location, velocity and orientation are relative
* to the listener.
* \param handle The handle of the source.
* \param relative Whether the source is relative.
* \return Whether the action succeeded.
*/
extern int AUD_setRelative(AUD_Handle *handle, int relative);
/**
* Sets the maximum volume of a source.
* \param handle The handle of the source.
* \param volume The new maximum volume.
* \return Whether the action succeeded.
*/
extern int AUD_setVolumeMaximum(AUD_Handle *handle, float volume);
/**
* Sets the minimum volume of a source.
* \param handle The handle of the source.
* \param volume The new minimum volume.
* \return Whether the action succeeded.
*/
extern int AUD_setVolumeMinimum(AUD_Handle *handle, float volume);
/**
* Sets the maximum distance of a source.
* If a source is further away from the reader than this distance, the
* volume will automatically be set to 0.
* \param handle The handle of the source.
* \param distance The new maximum distance.
* \return Whether the action succeeded.
*/
extern int AUD_setDistanceMaximum(AUD_Handle *handle, float distance);
/**
* Sets the reference distance of a source.
* \param handle The handle of the source.
* \param distance The new reference distance.
* \return Whether the action succeeded.
*/
extern int AUD_setDistanceReference(AUD_Handle *handle, float distance);
/**
* Sets the attenuation of a source.
* This value is used for distance calculation.
* \param handle The handle of the source.
* \param factor The new attenuation.
* \return Whether the action succeeded.
*/
extern int AUD_setAttenuation(AUD_Handle *handle, float factor);
/**
* Sets the outer angle of the cone of a source.
* \param handle The handle of the source.
* \param angle The new outer angle of the cone.
* \return Whether the action succeeded.
*/
extern int AUD_setConeAngleOuter(AUD_Handle *handle, float angle);
/**
* Sets the inner angle of the cone of a source.
* \param handle The handle of the source.
* \param angle The new inner angle of the cone.
* \return Whether the action succeeded.
*/
extern int AUD_setConeAngleInner(AUD_Handle *handle, float angle);
/**
* Sets the outer volume of the cone of a source.
* The volume between inner and outer angle is interpolated between inner
* volume and this value.
* \param handle The handle of the source.
* \param volume The new outer volume of the cone.
* \return Whether the action succeeded.
*/
extern int AUD_setConeVolumeOuter(AUD_Handle *handle, float volume);
/**
* Sets the volume of a played back sound.
* \param handle The handle to the sound.
* \param volume The new volume, must be between 0.0 and 1.0.
* \return Whether the action succeeded.
*/
extern int AUD_setSoundVolume(AUD_Handle *handle, float volume);
/**
* Sets the pitch of a played back sound.
* \param handle The handle to the sound.
* \param pitch The new pitch.
* \return Whether the action succeeded.
*/
extern int AUD_setSoundPitch(AUD_Handle *handle, float pitch);
/**
* Opens a read device, with which audio data can be read.
* \param specs The specification of the audio data.
* \return A device handle.
*/
extern AUD_Device *AUD_openReadDevice(AUD_DeviceSpecs specs);
/**
* Sets the main volume of a device.
* \param device The device.
* \param volume The new volume, must be between 0.0 and 1.0.
* \return Whether the action succeeded.
*/
extern int AUD_setDeviceVolume(AUD_Device *device, float volume);
/**
* Plays back a sound file through a read device.
* \param device The read device.
* \param sound The handle of the sound file.
* \param seek The position where the sound should be seeked to.
* \return A handle to the played back sound.
*/
extern AUD_Handle *AUD_playDevice(AUD_Device *device, AUD_Sound *sound, float seek);
/**
* Reads the next samples into the supplied buffer.
* \param device The read device.
* \param buffer The target buffer.
* \param length The length in samples to be filled.
* \return True if the reading succeeded, false if there are no sounds
* played back currently, in that case the buffer is filled with
* silence.
*/
extern int AUD_readDevice(AUD_Device *device, data_t *buffer, int length);
/**
* Closes a read device.
* \param device The read device.
*/
extern void AUD_closeReadDevice(AUD_Device *device);
/**
* Reads a sound file into a newly created float buffer.
* The sound is therefore bandpassed, rectified and resampled.
*/
extern float *AUD_readSoundBuffer(const char *filename, float low, float high,
float attack, float release, float threshold,
int accumulate, int additive, int square,
float sthreshold, double samplerate,
int *length);
/**
* Pauses a playing sound after a specific amount of time.
* \param handle The handle to the sound.
* \param seconds The time in seconds.
* \return The silence handle.
*/
extern AUD_Handle *AUD_pauseAfter(AUD_Handle *handle, float seconds);
/**
* Creates a new sequenced sound scene.
* \param fps The FPS of the scene.
* \param muted Whether the scene is muted.
* \return The new sound scene.
*/
extern AUD_Sound *AUD_createSequencer(float fps, int muted);
/**
* Deletes a sound scene.
* \param sequencer The sound scene.
*/
extern void AUD_destroySequencer(AUD_Sound *sequencer);
/**
* Sets the muting state of the scene.
* \param sequencer The sound scene.
* \param muted Whether the scene is muted.
*/
extern void AUD_setSequencerMuted(AUD_Sound *sequencer, int muted);
/**
* Sets the scene's FPS.
* \param sequencer The sound scene.
* \param fps The new FPS.
*/
extern void AUD_setSequencerFPS(AUD_Sound *sequencer, float fps);
/**
* Adds a new entry to the scene.
* \param sequencer The sound scene.
* \param sound The sound this entry should play.
* \param begin The start time.
* \param end The end time or a negative value if determined by the sound.
* \param skip How much seconds should be skipped at the beginning.
* \return The entry added.
*/
extern AUD_SEntry *AUD_addSequence(AUD_Sound *sequencer, AUD_Sound *sound,
float begin, float end, float skip);
/**
* Removes an entry from the scene.
* \param sequencer The sound scene.
* \param entry The entry to remove.
*/
extern void AUD_removeSequence(AUD_Sound *sequencer, AUD_SEntry *entry);
/**
* Moves the entry.
* \param entry The sequenced entry.
* \param begin The new start time.
* \param end The new end time or a negative value if unknown.
* \param skip How many seconds to skip at the beginning.
*/
extern void AUD_moveSequence(AUD_SEntry *entry, float begin, float end, float skip);
/**
* Sets the muting state of the entry.
* \param entry The sequenced entry.
* \param mute Whether the entry should be muted or not.
*/
extern void AUD_muteSequence(AUD_SEntry *entry, char mute);
/**
* Sets whether the entrie's location, velocity and orientation are relative
* to the listener.
* \param entry The sequenced entry.
* \param relative Whether the source is relative.
* \return Whether the action succeeded.
*/
extern void AUD_setRelativeSequence(AUD_SEntry *entry, char relative);
/**
* Sets the sound of the entry.
* \param entry The sequenced entry.
* \param sound The new sound.
*/
extern void AUD_updateSequenceSound(AUD_SEntry *entry, AUD_Sound *sound);
/**
* Writes animation data to a sequenced entry.
* \param entry The sequenced entry.
* \param type The type of animation data.
* \param frame The frame this data is for.
* \param data The data to write.
* \param animated Whether the attribute is animated.
*/
extern void AUD_setSequenceAnimData(AUD_SEntry *entry, AUD_AnimateablePropertyType type, int frame, float *data, char animated);
/**
* Writes animation data to a sequenced entry.
* \param sequencer The sound scene.
* \param type The type of animation data.
* \param frame The frame this data is for.
* \param data The data to write.
* \param animated Whether the attribute is animated.
*/
extern void AUD_setSequencerAnimData(AUD_Sound *sequencer, AUD_AnimateablePropertyType type, int frame, float *data, char animated);
/**
* Updates all non-animated parameters of the entry.
* \param entry The sequenced entry.
* \param volume_max The maximum volume.
* \param volume_min The minimum volume.
* \param distance_max The maximum distance.
* \param distance_reference The reference distance.
* \param attenuation The attenuation.
* \param cone_angle_outer The outer cone opening angle.
* \param cone_angle_inner The inner cone opening angle.
* \param cone_volume_outer The volume outside the outer cone.
*/
extern void AUD_updateSequenceData(AUD_SEntry *entry, float volume_max, float volume_min,
float distance_max, float distance_reference, float attenuation,
float cone_angle_outer, float cone_angle_inner, float cone_volume_outer);
/**
* Updates all non-animated parameters of the entry.
* \param sequencer The sound scene.
* \param speed_of_sound The speed of sound for doppler calculation.
* \param factor The doppler factor to control the effect's strength.
* \param model The distance model for distance calculation.
*/
extern void AUD_updateSequencerData(AUD_Sound *sequencer, float speed_of_sound,
float factor, AUD_DistanceModel model);
/**
* Sets the audio output specification of the sound scene to the specs of the
* current playback device.
* \param sequencer The sound scene.
*/
extern void AUD_setSequencerDeviceSpecs(AUD_Sound *sequencer);
/**
* Sets the audio output specification of the sound scene.
* \param sequencer The sound scene.
* \param specs The new specification.
*/
extern void AUD_setSequencerSpecs(AUD_Sound *sequencer, AUD_Specs specs);
/**
* Seeks sequenced sound scene playback.
* \param handle Playback handle.
* \param time Time in seconds to seek to.
*/
extern void AUD_seekSequencer(AUD_Handle *handle, float time);
/**
* Returns the current sound scene playback time.
* \param handle Playback handle.
* \return The playback time in seconds.
*/
extern float AUD_getSequencerPosition(AUD_Handle *handle);
/**
* Starts the playback of jack transport if possible.
*/
extern void AUD_startPlayback(void);
/**
* Stops the playback of jack transport if possible.
*/
extern void AUD_stopPlayback(void);
#ifdef WITH_JACK
/**
* Sets the sync callback for jack transport.
* \param function The callback function.
* \param data The data parameter for the callback.
*/
extern void AUD_setSyncCallback(AUD_syncFunction function, void *data);
#endif
/**
* Returns whether jack transport is currently playing.
* \return Whether jack transport is currently playing.
*/
extern int AUD_doesPlayback(void);
/**
* Reads a sound into a buffer for drawing at a specific sampling rate.
* \param sound The sound to read.
* \param buffer The buffer to write to. Must have a size of 3*4*length.
* \param length How many samples to read from the sound.
* \param samples_per_second How many samples to read per second of the sound.
* \return How many samples really have been read. Always <= length.
*/
extern int AUD_readSound(AUD_Sound *sound, sample_t *buffer, int length, int samples_per_second, short *interrupt);
/**
* Copies a sound.
* \param sound Sound to copy.
* \return Copied sound.
*/
extern AUD_Sound *AUD_copy(AUD_Sound *sound);
/**
* Frees a handle.
* \param channel Handle to free.
*/
extern void AUD_freeHandle(AUD_Handle *channel);
/**
* Creates a new set.
* \return The new set.
*/
extern void *AUD_createSet(void);
/**
* Deletes a set.
* \param set The set to delete.
*/
extern void AUD_destroySet(void *set);
/**
* Removes an entry from a set.
* \param set The set work on.
* \param entry The entry to remove.
* \return Whether the entry was in the set or not.
*/
extern char AUD_removeSet(void *set, void *entry);
/**
* Adds a new entry to a set.
* \param set The set work on.
* \param entry The entry to add.
*/
extern void AUD_addSet(void *set, void *entry);
/**
* Removes one entry from a set and returns it.
* \param set The set work on.
* \return The entry or NULL if the set is empty.
*/
extern void *AUD_getSet(void *set);
/**
* Mixes a sound down into a file.
* \param sound The sound scene to mix down.
* \param start The start frame.
* \param length The count of frames to write.
* \param buffersize How many samples should be written at once.
* \param filename The file to write to.
* \param specs The file's audio specification.
* \param format The file's container format.
* \param codec The codec used for encoding the audio data.
* \param bitrate The bitrate for encoding.
* \return An error message or NULL in case of success.
*/
extern const char *AUD_mixdown(AUD_Sound *sound, unsigned int start, unsigned int length,
unsigned int buffersize, const char *filename,
AUD_DeviceSpecs specs, AUD_Container format,
AUD_Codec codec, unsigned int bitrate);
/**
* Mixes a sound down into multiple files.
* \param sound The sound scene to mix down.
* \param start The start frame.
* \param length The count of frames to write.
* \param buffersize How many samples should be written at once.
* \param filename The file to write to, the channel number and an underscore are added at the beginning.
* \param specs The file's audio specification.
* \param format The file's container format.
* \param codec The codec used for encoding the audio data.
* \param bitrate The bitrate for encoding.
* \return An error message or NULL in case of success.
*/
extern const char *AUD_mixdown_per_channel(AUD_Sound *sound, unsigned int start, unsigned int length,
unsigned int buffersize, const char *filename,
AUD_DeviceSpecs specs, AUD_Container format,
AUD_Codec codec, unsigned int bitrate);
/**
* Opens a read device and prepares it for mixdown of the sound scene.
* \param specs Output audio specifications.
* \param sequencer The sound scene to mix down.
* \param volume The overall mixdown volume.
* \param start The start time of the mixdown in the sound scene.
* \return The read device for the mixdown.
*/
extern AUD_Device *AUD_openMixdownDevice(AUD_DeviceSpecs specs, AUD_Sound *sequencer, float volume, float start);
#ifdef WITH_PYTHON
/**
* Retrieves the python factory of a sound.
* \param sound The sound factory.
* \return The python factory.
*/
extern void *AUD_getPythonFactory(AUD_Sound *sound);
/**
* Retrieves the sound factory of a python factory.
* \param sound The python factory.
* \return The sound factory.
*/
extern AUD_Sound *AUD_getPythonSound(void *sound);
#endif
extern int AUD_isJackSupported(void);
#ifdef __cplusplus
}
#include <boost/shared_ptr.hpp>
class AUD_IDevice;
class AUD_I3DDevice;
/**
* Returns the current playback device.
* \return The playback device.
*/
boost::shared_ptr<AUD_IDevice> AUD_getDevice();
/**
* Returns the current playback 3D device.
* \return The playback 3D device.
*/
AUD_I3DDevice *AUD_get3DDevice();
#endif
#endif //__AUD_C_API_H__