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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.
*
* $URL$
* $Id$
*
*/
#ifndef VIDEO_AVI_PLAYER_H
#define VIDEO_AVI_PLAYER_H
#include "video/video_decoder.h"
#include "video/codecs/codec.h"
#include "audio/audiostream.h"
#include "audio/mixer.h"
namespace Video {
#define UNKNOWN_HEADER(a) error("Unknown header found -- \'%s\'", tag2str(a))
// IDs used throughout the AVI files
// that will be handled by this player
#define ID_RIFF MKID_BE('RIFF')
#define ID_AVI MKID_BE('AVI ')
#define ID_LIST MKID_BE('LIST')
#define ID_HDRL MKID_BE('hdrl')
#define ID_AVIH MKID_BE('avih')
#define ID_STRL MKID_BE('strl')
#define ID_STRH MKID_BE('strh')
#define ID_VIDS MKID_BE('vids')
#define ID_AUDS MKID_BE('auds')
#define ID_MIDS MKID_BE('mids')
#define ID_TXTS MKID_BE('txts')
#define ID_JUNK MKID_BE('JUNK')
#define ID_STRF MKID_BE('strf')
#define ID_MOVI MKID_BE('movi')
#define ID_REC MKID_BE('rec ')
#define ID_VEDT MKID_BE('vedt')
#define ID_IDX1 MKID_BE('idx1')
#define ID_STRD MKID_BE('strd')
#define ID_00AM MKID_BE('00AM')
//#define ID_INFO MKID_BE('INFO')
// Codec tags
#define ID_RLE MKID_BE('RLE ')
#define ID_CRAM MKID_BE('CRAM')
#define ID_MSVC MKID_BE('msvc')
#define ID_WHAM MKID_BE('WHAM')
#define ID_CVID MKID_BE('cvid')
#define ID_IV32 MKID_BE('iv32')
#define ID_DUCK MKID_BE('DUCK')
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 AVIOLDINDEX {
uint32 size;
struct Index {
uint32 id;
uint32 flags;
uint32 offset;
uint32 size;
} *indices;
};
// Index Flags
enum IndexFlags {
AVIIF_INDEX = 0x10
};
// Audio Codecs
enum {
kWaveFormatNone = 0,
kWaveFormatPCM = 1,
kWaveFormatDK3 = 98
};
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;
};
/**
* Decoder for AVI videos.
*
* Video decoder used in engines:
* - sci
*/
class AviDecoder : public FixedRateVideoDecoder {
public:
AviDecoder(Audio::Mixer *mixer,
Audio::Mixer::SoundType soundType = Audio::Mixer::kPlainSoundType);
virtual ~AviDecoder();
bool loadStream(Common::SeekableReadStream *stream);
void close();
bool isVideoLoaded() const { return _fileStream != 0; }
uint16 getWidth() const { return _header.width; }
uint16 getHeight() const { return _header.height; }
uint32 getFrameCount() const { return _header.totalFrames; }
uint32 getElapsedTime() const;
const Graphics::Surface *decodeNextFrame();
Graphics::PixelFormat getPixelFormat() const;
const byte *getPalette() { _dirtyPalette = false; return _palette; }
bool hasDirtyPalette() const { return _dirtyPalette; }
protected:
Common::Rational getFrameRate() const { return Common::Rational(_vidsHeader.rate, _vidsHeader.scale); }
private:
Audio::Mixer *_mixer;
BITMAPINFOHEADER _bmInfo;
PCMWAVEFORMAT _wvInfo;
AVIOLDINDEX _ixInfo;
AVIHeader _header;
AVIStreamHeader _vidsHeader;
AVIStreamHeader _audsHeader;
byte _palette[3 * 256];
bool _dirtyPalette;
Common::SeekableReadStream *_fileStream;
bool _decodedHeader;
Codec *_videoCodec;
Codec *createCodec();
Audio::Mixer::SoundType _soundType;
void runHandle(uint32 tag);
void handleList();
void handleStreamHeader();
void handlePalChange();
Audio::SoundHandle *_audHandle;
Audio::QueuingAudioStream *_audStream;
Audio::QueuingAudioStream *createAudioStream();
void queueAudioBuffer(uint32 chunkSize);
};
} // End of namespace Video
#endif
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