79 lines
2.4 KiB
C++
79 lines
2.4 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 3 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, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#ifndef ALG_VIDEO_H
|
|
#define ALG_VIDEO_H
|
|
|
|
#include "audio/audiostream.h"
|
|
#include "audio/mixer.h"
|
|
|
|
#include "common/file.h"
|
|
|
|
namespace Alg {
|
|
|
|
class AlgVideoDecoder {
|
|
public:
|
|
AlgVideoDecoder();
|
|
~AlgVideoDecoder();
|
|
void getNextFrame();
|
|
void loadVideoFromStream(uint32 offset);
|
|
void skipNumberOfFrames(uint32 num);
|
|
void setInputFile(Common::File *input) { _input = input; }
|
|
bool isFinished() const { return _bytesLeft == 0; }
|
|
Graphics::Surface *getVideoFrame() const { return _frame; }
|
|
void setPalette(uint8 *palette) { _palette = palette; }
|
|
bool isPaletteDirty() const { return _paletteDirty; }
|
|
void pauseAudio(bool pause) const { g_system->getMixer()->pauseHandle(_audioHandle, pause); }
|
|
uint16 getWidth() const { return _width; }
|
|
uint16 getHeight() const { return _height; }
|
|
uint32 getCurrentFrame() const { return _currentFrame; }
|
|
|
|
private:
|
|
Common::File *_input;
|
|
Graphics::Surface *_frame;
|
|
Audio::PacketizedAudioStream *_audioStream;
|
|
Audio::SoundHandle _audioHandle;
|
|
uint8 *_palette;
|
|
bool _paletteDirty;
|
|
bool _gotVideoFrame;
|
|
uint32 _currentFrame;
|
|
uint32 _size;
|
|
uint32 _bytesLeft;
|
|
uint16 _currentChunk;
|
|
|
|
uint16 _numChunks = 0;
|
|
uint16 _frameRate = 0;
|
|
uint16 _videoMode = 0;
|
|
uint16 _width = 0;
|
|
uint16 _height = 0;
|
|
uint16 _audioType = 0;
|
|
|
|
void readNextChunk();
|
|
void decodeIntraFrame(uint32 size, uint8 hh, uint8 hv);
|
|
void decodeInterFrame(uint32 size, uint8 hh, uint8 hv);
|
|
void updatePalette(uint32 size, bool partial);
|
|
void readAudioData(uint32 size, uint16 rate);
|
|
};
|
|
|
|
} // End of namespace Alg
|
|
|
|
#endif
|