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author | Matthew Hoops | 2011-04-07 19:29:49 -0400 |
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committer | Matthew Hoops | 2011-04-07 19:40:07 -0400 |
commit | 8cf73e3fb4e44567a7afa527a0705acb90033a78 (patch) | |
tree | fa33a05454d837ebe357399071b10344608722d3 /audio/decoders/quicktime.h | |
parent | d40874d6f4bce278b4ab3b0ef6fb34d35466b852 (diff) | |
download | scummvm-rg350-8cf73e3fb4e44567a7afa527a0705acb90033a78.tar.gz scummvm-rg350-8cf73e3fb4e44567a7afa527a0705acb90033a78.tar.bz2 scummvm-rg350-8cf73e3fb4e44567a7afa527a0705acb90033a78.zip |
AUDIO: Split QuickTime audio into a new class
Standalone QuickTime files can now be played as an AudioStream
Diffstat (limited to 'audio/decoders/quicktime.h')
-rw-r--r-- | audio/decoders/quicktime.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/audio/decoders/quicktime.h b/audio/decoders/quicktime.h new file mode 100644 index 0000000000..eb0f791748 --- /dev/null +++ b/audio/decoders/quicktime.h @@ -0,0 +1,96 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * 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. + * + * $URL$ + * $Id$ + * + */ + +#ifndef AUDIO_QUICKTIME_H +#define AUDIO_QUICKTIME_H + +#include "common/quicktime.h" +#include "common/scummsys.h" +#include "common/types.h" + +namespace Common { + class SeekableReadStream; + class String; +} + +namespace Audio { + +class AudioStream; +class RewindableAudioStream; +class QueuingAudioStream; + +class QuickTimeAudioDecoder : public Common::QuickTimeParser { +public: + QuickTimeAudioDecoder(); + virtual ~QuickTimeAudioDecoder(); + + /** + * Load a QuickTime audio file + * @param filename the filename to load + */ + bool loadFile(const Common::String &filename); + + /** + * Load a QuickTime audio file from a SeekableReadStream + * @param stream the stream to load + */ + bool loadStream(Common::SeekableReadStream *stream); + +protected: + struct AudioSampleDesc : public Common::QuickTimeParser::SampleDesc { + AudioSampleDesc(); + + uint16 channels; + uint32 sampleRate; + uint32 samplesPerFrame; + uint32 bytesPerFrame; + }; + + // Common::QuickTimeParser API + virtual Common::QuickTimeParser::SampleDesc *readSampleDesc(MOVStreamContext *st, uint32 format); + + AudioStream *createAudioStream(Common::SeekableReadStream *stream); + bool checkAudioCodecSupport(uint32 tag); + void init(); + + void queueNextAudioChunk(); + uint32 getAudioChunkSampleCount(uint chunk); + int8 _audioStreamIndex; + uint _curAudioChunk; + QueuingAudioStream *_audStream; +}; + +/** + * Try to load a QuickTime sound file from the given file name and create a RewindableAudioStream + * from that data. + * + * @param filename the filename of the file from which to read the data + * @return a new RewindableAudioStream, or NULL, if an error occurred + */ +RewindableAudioStream *makeQuickTimeStream(const Common::String &filename); + +} // End of namespace Audio + +#endif |