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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.
*
*/
#ifndef TITANIC_AVI_DECODER_H
#define TITANIC_AVI_DECODER_H
#include "common/array.h"
#include "common/rational.h"
#include "common/rect.h"
#include "common/str.h"
#include "video/video_decoder.h"
#include "audio/mixer.h"
namespace Audio {
class AudioStream;
class PacketizedAudioStream;
}
namespace Common {
class SeekableReadStream;
}
namespace Graphics {
struct PixelFormat;
}
namespace Image {
class Codec;
}
namespace Titanic {
/**
* Modified AVI Decoder used by Titanic engine.
*/
class AVIDecoder : public Video::VideoDecoder {
public:
AVIDecoder(Audio::Mixer::SoundType soundType = Audio::Mixer::kPlainSoundType);
AVIDecoder(const Common::Rational &frameRateOverride, Audio::Mixer::SoundType soundType = Audio::Mixer::kPlainSoundType);
virtual ~AVIDecoder();
bool loadStream(Common::SeekableReadStream *stream);
void close();
uint16 getWidth() const { return _header.width; }
uint16 getHeight() const { return _header.height; }
bool rewind();
bool isRewindable() const { return true; }
bool isSeekable() const;
protected:
// VideoDecoder API
void readNextPacket();
bool seekIntern(const Audio::Timestamp &time);
bool supportsAudioTrackSwitching() const { return true; }
AudioTrack *getAudioTrack(int index);
struct BitmapInfoHeader {
uint32 size;
uint32 width;
uint32 height;
uint16 planes;
uint16 bitCount;
uint32 compression;
uint32 sizeImage;
uint32 xPelsPerMeter;
uint32 yPelsPerMeter;
uint32 clrUsed;
uint32 clrImportant;
};
struct WaveFormat {
uint16 tag;
uint16 channels;
uint32 samplesPerSec;
uint32 avgBytesPerSec;
uint16 blockAlign;
};
struct PCMWaveFormat : public WaveFormat {
uint16 size;
};
struct WaveFormatEX : public WaveFormat {
uint16 bitsPerSample;
uint16 size;
};
struct OldIndex {
uint32 id;
uint32 flags;
uint32 offset;
uint32 size;
};
// Index Flags
enum IndexFlags {
AVIIF_INDEX = 0x10
};
struct AVIHeader {
uint32 size;
uint32 microSecondsPerFrame;
uint32 maxBytesPerSecond;
uint32 padding;
uint32 flags;
uint32 totalFrames;
uint32 initialFrames;
uint32 streams;
uint32 bufferSize;
uint32 width;
uint32 height;
};
// Flags from the AVIHeader
enum AVIFlags {
AVIF_HASINDEX = 0x00000010,
AVIF_MUSTUSEINDEX = 0x00000020,
AVIF_ISINTERLEAVED = 0x00000100,
AVIF_TRUSTCKTYPE = 0x00000800,
AVIF_WASCAPTUREFILE = 0x00010000,
AVIF_WASCOPYRIGHTED = 0x00020000
};
struct AVIStreamHeader {
uint32 size;
uint32 streamType;
uint32 streamHandler;
uint32 flags;
uint16 priority;
uint16 language;
uint32 initialFrames;
uint32 scale;
uint32 rate;
uint32 start;
uint32 length;
uint32 bufferSize;
uint32 quality;
uint32 sampleSize;
Common::Rect frame;
};
class AVIVideoTrack : public FixedRateVideoTrack {
public:
AVIVideoTrack(int frameCount, const AVIStreamHeader &streamHeader, const BitmapInfoHeader &bitmapInfoHeader, byte *initialPalette = 0);
~AVIVideoTrack();
void decodeFrame(Common::SeekableReadStream *stream);
void forceTrackEnd();
uint16 getWidth() const { return _bmInfo.width; }
uint16 getHeight() const { return _bmInfo.height; }
Graphics::PixelFormat getPixelFormat() const;
int getCurFrame() const { return _curFrame; }
int getFrameCount() const { return _frameCount; }
const Graphics::Surface *decodeNextFrame() { return _lastFrame; }
const byte *getPalette() const;
bool hasDirtyPalette() const;
void setCurFrame(int frame) { _curFrame = frame; }
void loadPaletteFromChunk(Common::SeekableReadStream *chunk);
void useInitialPalette();
bool canDither() const;
void setDither(const byte *palette);
bool isTruemotion1() const;
void forceDimensions(uint16 width, uint16 height);
bool isRewindable() const { return true; }
bool rewind();
protected:
Common::Rational getFrameRate() const { return Common::Rational(_vidsHeader.rate, _vidsHeader.scale); }
private:
AVIStreamHeader _vidsHeader;
BitmapInfoHeader _bmInfo;
byte _palette[3 * 256];
byte *_initialPalette;
mutable bool _dirtyPalette;
int _frameCount, _curFrame;
Image::Codec *_videoCodec;
const Graphics::Surface *_lastFrame;
Image::Codec *createCodec();
};
class AVIAudioTrack : public AudioTrack {
public:
AVIAudioTrack(const AVIStreamHeader &streamHeader, const PCMWaveFormat &waveFormat, Audio::Mixer::SoundType soundType);
~AVIAudioTrack();
virtual void createAudioStream();
virtual void queueSound(Common::SeekableReadStream *stream);
Audio::Mixer::SoundType getSoundType() const { return _soundType; }
void skipAudio(const Audio::Timestamp &time, const Audio::Timestamp &frameTime);
virtual void resetStream();
uint32 getCurChunk() const { return _curChunk; }
void setCurChunk(uint32 chunk) { _curChunk = chunk; }
bool isRewindable() const { return true; }
bool rewind();
protected:
Audio::AudioStream *getAudioStream() const { return _audioStream; }
// Audio Codecs
enum {
kWaveFormatNone = 0,
kWaveFormatPCM = 1,
kWaveFormatMSADPCM = 2,
kWaveFormatMSIMAADPCM = 17,
kWaveFormatMP3 = 85,
kWaveFormatDK3 = 98 // rogue format number
};
AVIStreamHeader _audsHeader;
PCMWaveFormat _wvInfo;
Audio::Mixer::SoundType _soundType;
Audio::AudioStream *_audioStream;
Audio::PacketizedAudioStream *_packetStream;
uint32 _curChunk;
};
struct TrackStatus {
TrackStatus();
Track *track;
uint32 index;
uint32 chunkSearchOffset;
};
AVIHeader _header;
void readOldIndex(uint32 size);
Common::Array<OldIndex> _indexEntries;
Common::SeekableReadStream *_fileStream;
bool _decodedHeader;
bool _foundMovieList;
uint32 _movieListStart, _movieListEnd;
Audio::Mixer::SoundType _soundType;
Common::Rational _frameRateOverride;
void initCommon();
bool parseNextChunk();
void skipChunk(uint32 size);
void handleList(uint32 listSize);
void handleStreamHeader(uint32 size);
uint16 getStreamType(uint32 tag) const { return tag & 0xFFFF; }
byte getStreamIndex(uint32 tag) const;
void checkTruemotion1();
void handleNextPacket(TrackStatus& status);
bool shouldQueueAudio(TrackStatus& status);
Common::Array<TrackStatus> _videoTracks, _audioTracks;
public:
virtual AVIAudioTrack *createAudioTrack(AVIStreamHeader sHeader, PCMWaveFormat wvInfo);
};
} // End of namespace Titanic
#endif
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