mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-19 08:06:42 +00:00
130 lines
3.4 KiB
C++
130 lines
3.4 KiB
C++
/* 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_VIDEO_SMK_PLAYER_H
|
|
#define GRAPHICS_VIDEO_SMK_PLAYER_H
|
|
|
|
#include "graphics/video/video_player.h"
|
|
#include "sound/mixer.h"
|
|
|
|
namespace Audio {
|
|
class QueuingAudioStream;
|
|
}
|
|
|
|
namespace Graphics {
|
|
|
|
class BigHuffmanTree;
|
|
|
|
/**
|
|
* Decoder for Smacker v2/v4 videos.
|
|
*
|
|
* Based on http://wiki.multimedia.cx/index.php?title=Smacker
|
|
* and the FFmpeg Smacker decoder (libavcodec/smacker.c), revision 16143
|
|
* http://svn.ffmpeg.org/ffmpeg/trunk/libavcodec/smacker.c?revision=16143&view=markup
|
|
*
|
|
* Video decoder used in engines:
|
|
* - agos
|
|
* - saga
|
|
* - scumm (he)
|
|
* - sword1
|
|
* - sword2
|
|
*/
|
|
class SmackerDecoder : public VideoDecoder {
|
|
public:
|
|
SmackerDecoder(Audio::Mixer *mixer,
|
|
Audio::Mixer::SoundType soundType = Audio::Mixer::kSFXSoundType);
|
|
virtual ~SmackerDecoder();
|
|
|
|
int getHeight();
|
|
int32 getAudioLag();
|
|
|
|
/**
|
|
* Load an SMK encoded video file
|
|
* @param filename the filename to load
|
|
*/
|
|
bool loadFile(const char *filename);
|
|
|
|
/**
|
|
* Close an SMK encoded video file
|
|
*/
|
|
void closeFile();
|
|
|
|
bool decodeNextFrame();
|
|
|
|
private:
|
|
void unpackPalette();
|
|
// Possible runs of blocks
|
|
uint getBlockRun(int index) { return (index <= 58) ? index + 1 : 128 << (index - 59); }
|
|
void queueCompressedBuffer(byte *buffer, uint32 bufferSize, uint32 unpackedSize, int streamNum);
|
|
|
|
struct AudioInfo {
|
|
bool isCompressed;
|
|
bool hasAudio;
|
|
bool is16Bits;
|
|
bool isStereo;
|
|
bool hasV2Compression;
|
|
uint32 sampleRate;
|
|
};
|
|
|
|
struct {
|
|
uint32 signature;
|
|
uint32 flags;
|
|
uint32 audioSize[7];
|
|
uint32 treesSize;
|
|
uint32 mMapSize;
|
|
uint32 mClrSize;
|
|
uint32 fullSize;
|
|
uint32 typeSize;
|
|
AudioInfo audioInfo[7];
|
|
uint32 dummy;
|
|
} _header;
|
|
|
|
uint32 *_frameSizes;
|
|
// The FrameTypes section of a Smacker file contains an array of bytes, where
|
|
// the 8 bits of each byte describe the contents of the corresponding frame.
|
|
// The highest 7 bits correspond to audio frames (bit 7 is track 6, bit 6 track 5
|
|
// and so on), so there can be up to 7 different audio tracks. When the lowest bit
|
|
// (bit 0) is set, it denotes a frame that contains a palette record
|
|
byte *_frameTypes;
|
|
byte *_frameData;
|
|
// The RGB palette
|
|
byte *_palette;
|
|
|
|
Audio::Mixer::SoundType _soundType;
|
|
Audio::Mixer *_mixer;
|
|
bool _audioStarted;
|
|
Audio::QueuingAudioStream *_audioStream;
|
|
Audio::SoundHandle _audioHandle;
|
|
|
|
BigHuffmanTree *_MMapTree;
|
|
BigHuffmanTree *_MClrTree;
|
|
BigHuffmanTree *_FullTree;
|
|
BigHuffmanTree *_TypeTree;
|
|
};
|
|
|
|
} // End of namespace Graphics
|
|
|
|
#endif
|