Gnash 0.8.9
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00001 // AudioDecoderFfmpeg.h: Audio decoding using the FFMPEG library. 00002 // 00003 // Copyright (C) 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. 00004 // 00005 // This program is free software; you can redistribute it and/or modify 00006 // it under the terms of the GNU General Public License as published by 00007 // the Free Software Foundation; either version 3 of the License, or 00008 // (at your option) any later version. 00009 // 00010 // This program is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 // GNU General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with this program; if not, write to the Free Software 00017 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00018 00019 #ifndef GNASH_AUDIODECODERFFMPEG_H 00020 #define GNASH_AUDIODECODERFFMPEG_H 00021 00022 #include "ffmpegHeaders.h" 00023 00024 #include "log.h" 00025 #include "AudioDecoder.h" // for inheritance 00026 #include "AudioResamplerFfmpeg.h" // for composition 00027 00028 // Forward declarations 00029 namespace gnash { 00030 namespace media { 00031 class SoundInfo; 00032 class AudioInfo; 00033 } 00034 } 00035 00036 namespace gnash { 00037 namespace media { 00038 namespace ffmpeg { 00039 00041 class AudioDecoderFfmpeg : public AudioDecoder { 00042 00043 public: 00048 AudioDecoderFfmpeg(const AudioInfo& info); 00049 00054 AudioDecoderFfmpeg(SoundInfo& info); 00055 ~AudioDecoderFfmpeg(); 00056 00057 // See dox in AudioDecoder.h 00058 boost::uint8_t* decode(const boost::uint8_t* input, 00059 boost::uint32_t inputSize, boost::uint32_t& outputSize, 00060 boost::uint32_t& decodedBytes, bool parse); 00061 00062 boost::uint8_t* decode(const EncodedAudioFrame& af, 00063 boost::uint32_t& outputSize); 00064 00065 private: 00066 00067 void setup(const AudioInfo& info); 00068 void setup(SoundInfo& info); 00069 00070 boost::uint8_t* decodeFrame(const boost::uint8_t* input, 00071 boost::uint32_t inputSize, boost::uint32_t& outputSize); 00072 00073 AVCodec* _audioCodec; 00074 AVCodecContext* _audioCodecCtx; 00075 AVCodecParserContext* _parser; 00076 00077 // Use for resampling audio 00078 AudioResamplerFfmpeg _resampler; 00079 00081 bool _needsParsing; 00082 00084 // 00101 int parseInput(const boost::uint8_t* input, boost::uint32_t inputSize, 00102 boost::uint8_t const ** outFrame, int* outFrameSize); 00103 }; 00104 00105 } // gnash.media.ffmpeg namespace 00106 } // gnash.media namespace 00107 } // gnash namespace 00108 00109 #endif