mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-05 20:41:06 +00:00
168 lines
5.3 KiB
C
168 lines
5.3 KiB
C
|
/*
|
||
|
* libsmackerdec - Smacker video decoder
|
||
|
* Copyright (C) 2011 Barry Duncan
|
||
|
*
|
||
|
* This library is free software; you can redistribute it and/or
|
||
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
* License as published by the Free Software Foundation; either
|
||
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
*
|
||
|
* This library 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
|
||
|
* Lesser General Public License for more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
* License along with this library; if not, write to the Free Software
|
||
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
*/
|
||
|
|
||
|
/* This code is based on smacker.c from the FFmpeg project which can be obtained from http://www.ffmpeg.org/
|
||
|
* below is the license from smacker.c
|
||
|
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
|
||
|
|
||
|
/*
|
||
|
* Smacker decoder
|
||
|
* Copyright (c) 2006 Konstantin Shishkov
|
||
|
*
|
||
|
* This file is part of FFmpeg.
|
||
|
*
|
||
|
* FFmpeg is free software; you can redistribute it and/or
|
||
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
* License as published by the Free Software Foundation; either
|
||
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
*
|
||
|
* FFmpeg 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
|
||
|
* Lesser General Public License for more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
* License along with FFmpeg; if not, write to the Free Software
|
||
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
*/
|
||
|
|
||
|
#ifndef _SmackerDecoder_h_
|
||
|
#define _SmackerDecoder_h_
|
||
|
|
||
|
#include <stdint.h>
|
||
|
#include "FileStream.h"
|
||
|
#include "BitReader.h"
|
||
|
#include <vector>
|
||
|
|
||
|
// exportable interface
|
||
|
struct SmackerHandle
|
||
|
{
|
||
|
bool isValid;
|
||
|
int instanceIndex;
|
||
|
};
|
||
|
|
||
|
struct SmackerAudioInfo
|
||
|
{
|
||
|
uint32_t sampleRate;
|
||
|
uint8_t nChannels;
|
||
|
uint8_t bitsPerSample;
|
||
|
|
||
|
uint32_t idealBufferSize;
|
||
|
};
|
||
|
|
||
|
SmackerHandle Smacker_Open (const char* fileName);
|
||
|
void Smacker_Close (SmackerHandle &handle);
|
||
|
uint32_t Smacker_GetNumAudioTracks (SmackerHandle &handle);
|
||
|
SmackerAudioInfo Smacker_GetAudioTrackDetails (SmackerHandle &handle, uint32_t trackIndex);
|
||
|
uint32_t Smacker_GetAudioData (SmackerHandle &handle, uint32_t trackIndex, int16_t *data);
|
||
|
uint32_t Smacker_GetNumFrames (SmackerHandle &handle);
|
||
|
void Smacker_GetFrameSize (SmackerHandle &handle, uint32_t &width, uint32_t &height);
|
||
|
uint32_t Smacker_GetCurrentFrameNum (SmackerHandle &handle);
|
||
|
uint32_t Smacker_GetNextFrame (SmackerHandle &handle);
|
||
|
float Smacker_GetFrameRate (SmackerHandle &handle);
|
||
|
void Smacker_GetPalette (SmackerHandle &handle, uint8_t *palette);
|
||
|
void Smacker_GetFrame (SmackerHandle &handle, uint8_t *frame);
|
||
|
void Smacker_GotoFrame (SmackerHandle &handle, uint32_t frameNum);
|
||
|
|
||
|
const int kMaxAudioTracks = 7;
|
||
|
|
||
|
// forward declare
|
||
|
struct HuffContext;
|
||
|
struct DBCtx;
|
||
|
|
||
|
struct SmackerAudioTrack
|
||
|
{
|
||
|
uint32_t sizeInBytes;
|
||
|
uint32_t flags;
|
||
|
uint32_t sampleRate;
|
||
|
uint8_t nChannels;
|
||
|
uint8_t bitsPerSample;
|
||
|
// int compressionType;
|
||
|
|
||
|
uint8_t *buffer;
|
||
|
uint32_t bufferSize;
|
||
|
|
||
|
uint32_t bytesReadThisFrame;
|
||
|
};
|
||
|
|
||
|
class SmackerDecoder
|
||
|
{
|
||
|
public:
|
||
|
uint32_t frameWidth;
|
||
|
uint32_t frameHeight;
|
||
|
|
||
|
SmackerDecoder();
|
||
|
~SmackerDecoder();
|
||
|
|
||
|
bool Open(const std::string &fileName);
|
||
|
void GetPalette(uint8_t *palette);
|
||
|
void GetFrame(uint8_t *frame);
|
||
|
|
||
|
SmackerAudioInfo GetAudioTrackDetails(uint32_t trackIndex);
|
||
|
uint32_t GetAudioData(uint32_t trackIndex, int16_t *audioBuffer);
|
||
|
uint32_t GetNumFrames();
|
||
|
uint32_t GetCurrentFrameNum();
|
||
|
float GetFrameRate();
|
||
|
void GetNextFrame();
|
||
|
void GotoFrame(uint32_t frameNum);
|
||
|
|
||
|
private:
|
||
|
SmackerCommon::FileStream file;
|
||
|
char signature[4];
|
||
|
|
||
|
// video related members
|
||
|
uint32_t nFrames;
|
||
|
uint32_t fps; // frames per second
|
||
|
|
||
|
uint8_t palette[768];
|
||
|
uint8_t *picture;
|
||
|
|
||
|
bool isVer4;
|
||
|
|
||
|
SmackerAudioTrack audioTracks[kMaxAudioTracks];
|
||
|
|
||
|
uint32_t treeSize;
|
||
|
uint32_t mMapSize, MClrSize, fullSize, typeSize;
|
||
|
|
||
|
std::vector<int> mmap_tbl;
|
||
|
std::vector<int> mclr_tbl;
|
||
|
std::vector<int> full_tbl;
|
||
|
std::vector<int> type_tbl;
|
||
|
|
||
|
int mmap_last[3], mclr_last[3], full_last[3], type_last[3];
|
||
|
|
||
|
std::vector<uint32_t> frameSizes;
|
||
|
std::vector<uint8_t> frameFlags;
|
||
|
|
||
|
uint32_t currentFrame;
|
||
|
int32_t nextPos;
|
||
|
|
||
|
bool DecodeHeaderTrees();
|
||
|
int DecodeHeaderTree(SmackerCommon::BitReader &bits, std::vector<int> &recodes, int *last, int size);
|
||
|
int DecodeTree(SmackerCommon::BitReader &bits, HuffContext *hc, uint32_t prefix, int length);
|
||
|
int DecodeBigTree(SmackerCommon::BitReader &bits, HuffContext *hc, DBCtx *ctx);
|
||
|
int GetCode(SmackerCommon::BitReader &bits, std::vector<int> &recode, int *last);
|
||
|
int ReadPacket();
|
||
|
int DecodeFrame(uint32_t frameSize);
|
||
|
void GetFrameSize(uint32_t &width, uint32_t &height);
|
||
|
int DecodeAudio(uint32_t size, SmackerAudioTrack &track);
|
||
|
};
|
||
|
|
||
|
#endif
|