1/* 2 * VP9 compatible video decoder 3 * 4 * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com> 5 * Copyright (C) 2013 Clément Bœsch <u pkh me> 6 * 7 * This file is part of FFmpeg. 8 * 9 * FFmpeg is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU Lesser General Public 11 * License as published by the Free Software Foundation; either 12 * version 2.1 of the License, or (at your option) any later version. 13 * 14 * FFmpeg is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * Lesser General Public License for more details. 18 * 19 * You should have received a copy of the GNU Lesser General Public 20 * License along with FFmpeg; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 22 */ 23 24#ifndef AVCODEC_VP9SHARED_H 25#define AVCODEC_VP9SHARED_H 26 27#include <stddef.h> 28#include <stdint.h> 29 30#include "vp9.h" 31#include "threadframe.h" 32#include "vp56.h" 33 34enum BlockPartition { 35 PARTITION_NONE, // [ ] <-. 36 PARTITION_H, // [-] | 37 PARTITION_V, // [|] | 38 PARTITION_SPLIT, // [+] --' 39}; 40 41enum InterPredMode { 42 NEARESTMV = 10, 43 NEARMV = 11, 44 ZEROMV = 12, 45 NEWMV = 13, 46}; 47 48enum CompPredMode { 49 PRED_SINGLEREF, 50 PRED_COMPREF, 51 PRED_SWITCHABLE, 52}; 53 54typedef struct VP9mvrefPair { 55 VP56mv mv[2]; 56 int8_t ref[2]; 57} VP9mvrefPair; 58 59typedef struct VP9Frame { 60 ThreadFrame tf; 61 AVBufferRef *extradata; 62 uint8_t *segmentation_map; 63 VP9mvrefPair *mv; 64 int uses_2pass; 65 66 AVBufferRef *hwaccel_priv_buf; 67 void *hwaccel_picture_private; 68} VP9Frame; 69 70enum BlockLevel { 71 BL_64X64, 72 BL_32X32, 73 BL_16X16, 74 BL_8X8, 75}; 76 77enum BlockSize { 78 BS_64x64, 79 BS_64x32, 80 BS_32x64, 81 BS_32x32, 82 BS_32x16, 83 BS_16x32, 84 BS_16x16, 85 BS_16x8, 86 BS_8x16, 87 BS_8x8, 88 BS_8x4, 89 BS_4x8, 90 BS_4x4, 91 N_BS_SIZES, 92}; 93 94typedef struct VP9BitstreamHeader { 95 // bitstream header 96 uint8_t profile; 97 uint8_t bpp; 98 uint8_t keyframe; 99 uint8_t invisible; 100 uint8_t errorres; 101 uint8_t intraonly; 102 uint8_t resetctx; 103 uint8_t refreshrefmask; 104 uint8_t highprecisionmvs; 105 enum FilterMode filtermode; 106 uint8_t allowcompinter; 107 uint8_t refreshctx; 108 uint8_t parallelmode; 109 uint8_t framectxid; 110 uint8_t use_last_frame_mvs; 111 uint8_t refidx[3]; 112 uint8_t signbias[3]; 113 uint8_t fixcompref; 114 uint8_t varcompref[2]; 115 struct { 116 uint8_t level; 117 int8_t sharpness; 118 } filter; 119 struct { 120 uint8_t enabled; 121 uint8_t updated; 122 int8_t mode[2]; 123 int8_t ref[4]; 124 } lf_delta; 125 uint8_t yac_qi; 126 int8_t ydc_qdelta, uvdc_qdelta, uvac_qdelta; 127 uint8_t lossless; 128#define MAX_SEGMENT 8 129 struct { 130 uint8_t enabled; 131 uint8_t temporal; 132 uint8_t absolute_vals; 133 uint8_t update_map; 134 uint8_t prob[7]; 135 uint8_t pred_prob[3]; 136 struct { 137 uint8_t q_enabled; 138 uint8_t lf_enabled; 139 uint8_t ref_enabled; 140 uint8_t skip_enabled; 141 uint8_t ref_val; 142 int16_t q_val; 143 int8_t lf_val; 144 int16_t qmul[2][2]; 145 uint8_t lflvl[4][2]; 146 } feat[MAX_SEGMENT]; 147 } segmentation; 148 enum TxfmMode txfmmode; 149 enum CompPredMode comppredmode; 150 struct { 151 unsigned log2_tile_cols, log2_tile_rows; 152 unsigned tile_cols, tile_rows; 153 } tiling; 154 155 int uncompressed_header_size; 156 int compressed_header_size; 157} VP9BitstreamHeader; 158 159typedef struct VP9SharedContext { 160 VP9BitstreamHeader h; 161 162 ThreadFrame refs[8]; 163#define CUR_FRAME 0 164#define REF_FRAME_MVPAIR 1 165#define REF_FRAME_SEGMAP 2 166 VP9Frame frames[3]; 167} VP9SharedContext; 168 169#endif /* AVCODEC_VP9SHARED_H */ 170