/*
* VP9 compatible video decoder
*
* Copyright ( C ) 2013 Ronald S . Bultje < rsbultje gmail com >
* Copyright ( C ) 2013 Cl é ment B œ sch < u pkh me >
*
* 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 AVCODEC_VP9SHARED_H
#define AVCODEC_VP9SHARED_H
#include <stddef.h>
#include <stdint.h>
#include "libavutil/mem_internal.h"
#include "progressframe.h"
#include "cbs_vp9.h"
#include "vp9.h"
enum BlockPartition {
PARTITION_NONE, // [ ] <-.
PARTITION_H, // [-] |
PARTITION_V, // [|] |
PARTITION_SPLIT, // [+] --'
};
enum InterPredMode {
NEARESTMV = 10 ,
NEARMV = 11 ,
ZEROMV = 12 ,
NEWMV = 13 ,
};
enum CompPredMode {
PRED_SINGLEREF,
PRED_COMPREF,
PRED_SWITCHABLE,
};
typedef struct VP9mv {
DECLARE_ALIGNED(4 , int16_t, x);
int16_t y;
} VP9mv;
typedef struct VP9mvrefPair {
VP9mv mv[2 ];
int8_t ref[2 ];
} VP9mvrefPair;
typedef struct VP9Frame {
VP9RawFrame *header_ref; ///< RefStruct reference backing frame_header
VP9RawFrameHeader *frame_header;
ProgressFrame tf;
void *extradata; ///< RefStruct reference
uint8_t *segmentation_map;
VP9mvrefPair *mv;
int uses_2pass;
void *hwaccel_picture_private; ///< RefStruct reference
} VP9Frame;
enum BlockLevel {
BL_64X64,
BL_32X32,
BL_16X16,
BL_8X8,
};
enum BlockSize {
BS_64x64,
BS_64x32,
BS_32x64,
BS_32x32,
BS_32x16,
BS_16x32,
BS_16x16,
BS_16x8,
BS_8x16,
BS_8x8,
BS_8x4,
BS_4x8,
BS_4x4,
N_BS_SIZES,
};
typedef struct VP9BitstreamHeader {
// bitstream header
uint8_t profile;
uint8_t bpp;
uint8_t keyframe;
uint8_t invisible;
uint8_t errorres;
uint8_t intraonly;
uint8_t resetctx;
uint8_t refreshrefmask;
uint8_t highprecisionmvs;
enum FilterMode filtermode;
uint8_t allowcompinter;
uint8_t refreshctx;
uint8_t parallelmode;
uint8_t framectxid;
uint8_t use_last_frame_mvs;
uint8_t refidx[3 ];
uint8_t signbias[3 ];
uint8_t fixcompref;
uint8_t varcompref[2 ];
struct {
uint8_t level;
int8_t sharpness;
} filter;
struct {
uint8_t enabled;
uint8_t updated;
int8_t mode[2 ];
int8_t ref[4 ];
} lf_delta;
uint8_t yac_qi;
int8_t ydc_qdelta, uvdc_qdelta, uvac_qdelta;
uint8_t lossless;
#define MAX_SEGMENT 8
struct {
uint8_t enabled;
uint8_t temporal;
uint8_t absolute_vals;
uint8_t update_map;
uint8_t prob[7 ];
uint8_t pred_prob[3 ];
struct {
uint8_t q_enabled;
uint8_t lf_enabled;
uint8_t ref_enabled;
uint8_t skip_enabled;
uint8_t ref_val;
int16_t q_val;
int8_t lf_val;
int16_t qmul[2 ][2 ];
uint8_t lflvl[4 ][2 ];
} feat[MAX_SEGMENT];
} segmentation;
enum TxfmMode txfmmode;
enum CompPredMode comppredmode;
struct {
unsigned log2_tile_cols, log2_tile_rows;
unsigned tile_cols, tile_rows;
} tiling;
int uncompressed_header_size;
int compressed_header_size;
} VP9BitstreamHeader;
typedef struct VP9SharedContext {
VP9BitstreamHeader h;
ProgressFrame refs[8 ];
#define CUR_FRAME 0
#define REF_FRAME_MVPAIR 1
#define REF_FRAME_SEGMAP 2
#define BLANK_FRAME 3
VP9Frame frames[4 ];
VP9Frame ref_frames[8 ];
} VP9SharedContext;
#endif /* AVCODEC_VP9SHARED_H */
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