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/* 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.
*
* $URL$
* $Id$
*
*/
/**
* @file
* Sound decoder used in engines:
* - groovie
* - mohawk
* - sci
*/
#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 loadAudioFile(const Common::String &filename);
/**
* Load a QuickTime audio file from a SeekableReadStream
* @param stream the stream to load
*/
bool loadAudioStream(Common::SeekableReadStream *stream, DisposeAfterUse::Flag disposeFileHandle);
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, byte objectTypeMP4);
void init();
void queueNextAudioChunk();
uint32 getAudioChunkSampleCount(uint chunk);
int8 _audioStreamIndex;
uint _curAudioChunk;
QueuingAudioStream *_audStream;
void setAudioStreamPos(const Timestamp &where);
};
/**
* Try to load a QuickTime sound file from the given file name and create a SeekableAudioStream
* from that data.
*
* @param filename the filename of the file from which to read the data
* @return a new SeekableAudioStream, or NULL, if an error occurred
*/
SeekableAudioStream *makeQuickTimeStream(const Common::String &filename);
/**
* Try to load a QuickTime sound file from the given seekable stream and create a SeekableAudioStream
* from that data.
*
* @param stream the SeekableReadStream from which to read the data
* @param disposeAfterUse whether to delete the stream after use
* @return a new SeekableAudioStream, or NULL, if an error occurred
*/
SeekableAudioStream *makeQuickTimeStream(Common::SeekableReadStream *stream, DisposeAfterUse::Flag disposeAfterUse = DisposeAfterUse::YES);
} // End of namespace Audio
#endif
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