mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-12-28 23:46:06 +00:00
139 lines
3.9 KiB
C++
139 lines
3.9 KiB
C++
#pragma once
|
|
#include <bfc/platform/types.h>
|
|
#include "BitReader.h"
|
|
#include "IDCT.h"
|
|
#include "IDCTRef.h"
|
|
#include "lib.h"
|
|
|
|
/* this is necessary for the max resolution 16CIF */
|
|
#define MBC 88
|
|
#define MBR 72
|
|
|
|
#define PSC 1
|
|
#define PSC_LENGTH 17
|
|
#define SE_CODE 31
|
|
|
|
#define MODE_INTER 0
|
|
#define MODE_INTER_Q 1
|
|
#define MODE_INTER4V 2
|
|
#define MODE_INTRA 3
|
|
#define MODE_INTRA_Q 4
|
|
#define MODE_INTER4V_Q 5
|
|
|
|
#define PBMODE_NORMAL 0
|
|
#define PBMODE_MVDB 1
|
|
#define PBMODE_CBPB_MVDB 2
|
|
|
|
#define ESCAPE 7167
|
|
#define ESCAPE_INDEX 102
|
|
#define EP_FORWARD_PREDICTION 0
|
|
#define EI_EP_UPWARD_PREDICTION 1
|
|
#define EP_BIDIRECTIONAL_PREDICTION 2
|
|
#define EI_EP_INTRA_PREDICTION 3
|
|
#define MAX_LAYERS 2
|
|
|
|
/* picture types */
|
|
#define PCT_INTRA 0
|
|
#define PCT_INTER 1
|
|
#define PCT_DISPOSABLE_INTER 2
|
|
//#define PCT_IPB 2
|
|
#define PCT_B 3
|
|
|
|
#define ON 1
|
|
#define OFF 0
|
|
#define YES 1
|
|
#define NO 0
|
|
|
|
#define B_EI_EP_STUFFING 5
|
|
#define INVALID_MBTYPE 255
|
|
|
|
#define B_DIRECT_PREDICTION 0
|
|
#define B_FORWARD_PREDICTION 1
|
|
#define B_BACKWARD_PREDICTION 2
|
|
#define B_BIDIRECTIONAL_PREDICTION 3
|
|
#define B_INTRA_PREDICTION 4
|
|
|
|
#define SF_SQCIF 1 /* 001 */
|
|
#define SF_QCIF 2 /* 010 */
|
|
#define SF_CIF 3 /* 011 */
|
|
#define SF_4CIF 4 /* 100 */
|
|
#define SF_16CIF 5 /* 101 */
|
|
|
|
|
|
/* this is necessary for the max resolution 16CIF */
|
|
#define MBC 88
|
|
#define MBR 72
|
|
|
|
#define NO_VEC 999
|
|
|
|
typedef unsigned char *Frame[3];
|
|
class Decoder
|
|
{
|
|
public:
|
|
Decoder();
|
|
~Decoder();
|
|
int init();
|
|
|
|
void getpicture(Frame frame);
|
|
int getheader();
|
|
|
|
int DecodeFrame(YV12_PLANES *yv12, int *width, int *height, int *keyframe);
|
|
|
|
|
|
static unsigned char *clp;
|
|
|
|
BitReader buffer;
|
|
private:
|
|
void reconstruct(int bx, int by, int mode);
|
|
|
|
void get_I_P_MBs();
|
|
void horiz_edge_filter(unsigned char *rec, int width, int height, int chr);
|
|
void vert_edge_filter(unsigned char *rec, int width, int height, int chr);
|
|
void edge_filter(unsigned char *lum, unsigned char *Cb, unsigned char *Cr, int width, int height);
|
|
void vert_post_filter(unsigned char *rec, int width, int height, int chr);
|
|
void horiz_post_filter(unsigned char *rec, int width, int height, int chr);
|
|
void PostFilter(unsigned char *lum, unsigned char *Cb, unsigned char *Cr,int width, int height);
|
|
void addblock(int comp, int bx, int by, int addflag);
|
|
int find_pmv(int x, int y, int block, int comp);
|
|
void getpicturehdr();
|
|
|
|
|
|
void getblock(int comp, int mode);
|
|
void clearblock(int comp);
|
|
|
|
void startcode();
|
|
|
|
/* vlc */
|
|
int getTMNMV(void);
|
|
int getMCBPC(void);
|
|
int getMBTYPE (int *cbp_present, int *quant_present);
|
|
int getMCBPCintra(void);
|
|
int getCBPY(void);
|
|
|
|
private:
|
|
Frame refframe, oldrefframe, newframe;
|
|
Frame edgeframe, edgeframeorig;
|
|
int MV[2][5][MBR+1][MBC+2];
|
|
int modemap[MBR+1][MBC+2];
|
|
int coded_map[MBR + 1][MBC + 1];
|
|
int quant_map[MBR + 1][MBC + 1];
|
|
unsigned int horizontal_size,vertical_size,mb_width,mb_height;
|
|
unsigned int coded_picture_width, coded_picture_height;
|
|
unsigned int chrom_width,chrom_height;
|
|
int pict_type;
|
|
int fault;
|
|
int deblock;
|
|
int refidct;
|
|
int quant;
|
|
int escapemode;
|
|
bool firstFrame;
|
|
|
|
IDCT idct;
|
|
|
|
/* block data */
|
|
short block[12][64];
|
|
static bool initted;
|
|
static unsigned char clp_table[1024];
|
|
|
|
|
|
}; |