forked from bartvdbraak/blender
32d5cc247f
Issue was caused by the way how audio output works from audaspace. Now made it much closer to what's happening in ffmpeg.c and writeffmpeg.c. Also fixed issues with incompatible combinations of codecs and formats in mixdown settings.
154 lines
3.4 KiB
C++
154 lines
3.4 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* Copyright 2009-2011 Jörg Hermann Müller
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*
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* This file is part of AudaSpace.
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*
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* Audaspace is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* AudaSpace is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Audaspace; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file audaspace/ffmpeg/AUD_FFMPEGWriter.h
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* \ingroup audffmpeg
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*/
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#ifndef __AUD_FFMPEGWRITER_H__
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#define __AUD_FFMPEGWRITER_H__
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#include "AUD_ConverterFunctions.h"
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#include "AUD_Buffer.h"
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#include "AUD_IWriter.h"
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#include <string>
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struct AVCodecContext;
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extern "C" {
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#include <libavformat/avformat.h>
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}
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/**
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* This class writes a sound file via ffmpeg.
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*/
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class AUD_FFMPEGWriter : public AUD_IWriter
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{
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private:
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/**
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* The current position in samples.
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*/
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int m_position;
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/**
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* The specification of the audio data.
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*/
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AUD_DeviceSpecs m_specs;
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/**
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* The AVFormatContext structure for using ffmpeg.
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*/
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AVFormatContext* m_formatCtx;
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/**
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* The AVCodecContext structure for using ffmpeg.
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*/
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AVCodecContext* m_codecCtx;
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/**
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* The AVOutputFormat structure for using ffmpeg.
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*/
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AVOutputFormat* m_outputFmt;
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/**
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* The AVStream structure for using ffmpeg.
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*/
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AVStream* m_stream;
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/**
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* Frame sent to the encoder.
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*/
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AVFrame *m_frame;
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/**
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* PTS of next frame to write.
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*/
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int m_frame_pts;
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/**
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* Number of bytes per sample.
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*/
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int m_audio_sample_size;
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/**
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* The input buffer for the format converted data before encoding.
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*/
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AUD_Buffer m_input_buffer;
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/**
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* The output buffer for the encoded audio data.
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*/
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AUD_Buffer m_output_buffer;
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/**
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* The count of input samples we have so far.
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*/
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unsigned int m_input_samples;
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/**
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* The count of input samples necessary to encode a packet.
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*/
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unsigned int m_input_size;
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/**
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* Converter function.
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*/
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AUD_convert_f m_convert;
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// hide copy constructor and operator=
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AUD_FFMPEGWriter(const AUD_FFMPEGWriter&);
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AUD_FFMPEGWriter& operator=(const AUD_FFMPEGWriter&);
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/**
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* Encodes to the output buffer.
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* \param data Pointer to the data to encode.
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*/
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void encode(sample_t* data);
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public:
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/**
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* Creates a new writer.
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* \param filename The path to the file to be read.
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* \param specs The file's audio specification.
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* \param format The file's container format.
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* \param codec The codec used for encoding the audio data.
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* \param bitrate The bitrate for encoding.
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* \exception AUD_Exception Thrown if the file specified does not exist or
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* cannot be read with ffmpeg.
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*/
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AUD_FFMPEGWriter(std::string filename, AUD_DeviceSpecs specs, AUD_Container format, AUD_Codec codec, unsigned int bitrate);
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/**
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* Destroys the writer and closes the file.
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*/
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virtual ~AUD_FFMPEGWriter();
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virtual int getPosition() const;
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virtual AUD_DeviceSpecs getSpecs() const;
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virtual void write(unsigned int length, sample_t* buffer);
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};
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#endif //__AUD_FFMPEGWRITER_H__
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