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Diffstat (limited to 'video/avi_decoder.h')
| -rw-r--r-- | video/avi_decoder.h | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/video/avi_decoder.h b/video/avi_decoder.h new file mode 100644 index 0000000000..9f9f5ed617 --- /dev/null +++ b/video/avi_decoder.h @@ -0,0 +1,225 @@ +/* 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 GRAPHICS_AVI_PLAYER_H +#define GRAPHICS_AVI_PLAYER_H + +#include "graphics/video/video_decoder.h" +#include "graphics/video/codecs/codec.h" +#include "sound/audiostream.h" +#include "sound/mixer.h" + +namespace Graphics { + +#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 load(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 Surface *decodeNextFrame(); + 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 Graphics + +#endif |