mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
155 lines
3.3 KiB
C
155 lines
3.3 KiB
C
/*
|
|
* Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
|
|
* Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
|
|
*
|
|
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef CAVS_H
|
|
#define CAVS_H
|
|
|
|
#include "dsputil.h"
|
|
|
|
#define SLICE_MIN_START_CODE 0x00000101
|
|
#define SLICE_MAX_START_CODE 0x000001af
|
|
#define EXT_START_CODE 0x000001b5
|
|
#define USER_START_CODE 0x000001b2
|
|
#define CAVS_START_CODE 0x000001b0
|
|
#define PIC_I_START_CODE 0x000001b3
|
|
#define PIC_PB_START_CODE 0x000001b6
|
|
|
|
#define A_AVAIL 1
|
|
#define B_AVAIL 2
|
|
#define C_AVAIL 4
|
|
#define D_AVAIL 8
|
|
#define NOT_AVAIL -1
|
|
#define REF_INTRA -2
|
|
#define REF_DIR -3
|
|
|
|
#define ESCAPE_CODE 59
|
|
|
|
#define FWD0 0x01
|
|
#define FWD1 0x02
|
|
#define BWD0 0x04
|
|
#define BWD1 0x08
|
|
#define SYM0 0x10
|
|
#define SYM1 0x20
|
|
#define SPLITH 0x40
|
|
#define SPLITV 0x80
|
|
|
|
#define MV_BWD_OFFS 12
|
|
#define MV_STRIDE 4
|
|
|
|
enum mb_t {
|
|
I_8X8 = 0,
|
|
P_SKIP,
|
|
P_16X16,
|
|
P_16X8,
|
|
P_8X16,
|
|
P_8X8,
|
|
B_SKIP,
|
|
B_DIRECT,
|
|
B_FWD_16X16,
|
|
B_BWD_16X16,
|
|
B_SYM_16X16,
|
|
B_8X8 = 29
|
|
};
|
|
|
|
enum sub_mb_t {
|
|
B_SUB_DIRECT,
|
|
B_SUB_FWD,
|
|
B_SUB_BWD,
|
|
B_SUB_SYM
|
|
};
|
|
|
|
enum intra_luma_t {
|
|
INTRA_L_VERT,
|
|
INTRA_L_HORIZ,
|
|
INTRA_L_LP,
|
|
INTRA_L_DOWN_LEFT,
|
|
INTRA_L_DOWN_RIGHT,
|
|
INTRA_L_LP_LEFT,
|
|
INTRA_L_LP_TOP,
|
|
INTRA_L_DC_128
|
|
};
|
|
|
|
enum intra_chroma_t {
|
|
INTRA_C_LP,
|
|
INTRA_C_HORIZ,
|
|
INTRA_C_VERT,
|
|
INTRA_C_PLANE,
|
|
INTRA_C_LP_LEFT,
|
|
INTRA_C_LP_TOP,
|
|
INTRA_C_DC_128,
|
|
};
|
|
|
|
enum mv_pred_t {
|
|
MV_PRED_MEDIAN,
|
|
MV_PRED_LEFT,
|
|
MV_PRED_TOP,
|
|
MV_PRED_TOPRIGHT,
|
|
MV_PRED_PSKIP,
|
|
MV_PRED_BSKIP
|
|
};
|
|
|
|
enum block_t {
|
|
BLK_16X16,
|
|
BLK_16X8,
|
|
BLK_8X16,
|
|
BLK_8X8
|
|
};
|
|
|
|
enum mv_loc_t {
|
|
MV_FWD_D3 = 0,
|
|
MV_FWD_B2,
|
|
MV_FWD_B3,
|
|
MV_FWD_C2,
|
|
MV_FWD_A1,
|
|
MV_FWD_X0,
|
|
MV_FWD_X1,
|
|
MV_FWD_A3 = 8,
|
|
MV_FWD_X2,
|
|
MV_FWD_X3,
|
|
MV_BWD_D3 = MV_BWD_OFFS,
|
|
MV_BWD_B2,
|
|
MV_BWD_B3,
|
|
MV_BWD_C2,
|
|
MV_BWD_A1,
|
|
MV_BWD_X0,
|
|
MV_BWD_X1,
|
|
MV_BWD_A3 = MV_BWD_OFFS+8,
|
|
MV_BWD_X2,
|
|
MV_BWD_X3
|
|
};
|
|
|
|
DECLARE_ALIGNED_8(typedef, struct) {
|
|
int16_t x;
|
|
int16_t y;
|
|
int16_t dist;
|
|
int16_t ref;
|
|
} vector_t;
|
|
|
|
typedef struct residual_vlc_t {
|
|
int8_t rltab[59][3];
|
|
int8_t level_add[27];
|
|
int8_t golomb_order;
|
|
int inc_limit;
|
|
int8_t max_run;
|
|
} residual_vlc_t;
|
|
|
|
#endif /* CAVS_H */
|