vp8.h
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1 /*
2  * VP8 compatible video decoder
3  *
4  * Copyright (C) 2010 David Conrad
5  * Copyright (C) 2010 Ronald S. Bultje
6  * Copyright (C) 2010 Jason Garrett-Glaser
7  * Copyright (C) 2012 Daniel Kang
8  *
9  * This file is part of Libav.
10  *
11  * Libav is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU Lesser General Public
13  * License as published by the Free Software Foundation; either
14  * version 2.1 of the License, or (at your option) any later version.
15  *
16  * Libav is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  * Lesser General Public License for more details.
20  *
21  * You should have received a copy of the GNU Lesser General Public
22  * License along with Libav; if not, write to the Free Software
23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24  */
25 
26 #ifndef AVCODEC_VP8_H
27 #define AVCODEC_VP8_H
28 
29 #include "vp56.h"
30 #include "vp56data.h"
31 #include "vp8dsp.h"
32 #include "h264pred.h"
33 #if HAVE_PTHREADS
34 #include <pthread.h>
35 #elif HAVE_W32THREADS
36 #include "w32pthreads.h"
37 #endif
38 
39 #define VP8_MAX_QUANT 127
40 
41 enum dct_token {
54 
56 };
57 
58 // used to signal 4x4 intra pred in luma MBs
59 #define MODE_I4x4 4
60 
65 };
66 
73 };
74 
75 typedef struct VP8FilterStrength {
80 
81 typedef struct VP8Macroblock {
83  // todo: make it possible to check for at least (i4x4 or split_mv)
84  // in one op. are others needed?
93  VP56mv bmv[16];
95 
96 typedef struct VP8ThreadData {
97  DECLARE_ALIGNED(16, DCTELEM, block)[6][4][16];
115 #if HAVE_THREADS
116  pthread_mutex_t lock;
117  pthread_cond_t cond;
118 #endif
119  int thread_mb_pos; // (mb_y << 16) | (mb_x & 0xFFFF)
120  int wait_mb_pos; // What the current thread is waiting on.
123 } VP8ThreadData;
124 
125 #define MAX_THREADS 8
126 typedef struct VP8Context {
133 
134  uint16_t mb_width; /* number of horizontal MB */
135  uint16_t mb_height; /* number of vertical MB */
136  int linesize;
138 
145 
146  int8_t sign_bias[4];
147  int ref_count[3];
148 
154  struct {
158  int8_t base_quant[4];
159  int8_t filter_level[4];
160  } segmentation;
161 
162  struct {
166  } filter;
167 
169 
172 
178  struct {
179  // [0] - DC qmul [1] - AC qmul
180  int16_t luma_qmul[2];
181  int16_t luma_dc_qmul[2];
182  int16_t chroma_qmul[2];
183  } qmat[4];
184 
185  struct {
186  uint8_t enabled;
187 
198 
206  int8_t ref[4];
207  } lf_delta;
208 
209  uint8_t (*top_border)[16+8+8];
211 
213 
220  struct {
229  uint8_t mvc[2][19];
230  } prob[2];
231 
237 
243 
255 
265  int num_jobs;
272 } VP8Context;
273 
274 #endif /* AVCODEC_VP8_H */
uint8_t golden
Definition: vp8.h:225
Definition: vp8.h:44
uint8_t inner_limit
Definition: vp8.h:77
VP8Macroblock * macroblocks
Definition: vp8.h:168
Definition: vp8.h:52
Definition: vp8.h:45
(only used in prediction) no split MVs
Definition: vp8.h:72
This structure describes decoded (raw) audio or video data.
Definition: avcodec.h:989
VP56mv mv_min
Definition: vp8.h:143
VP5 and VP6 compatible video decoder (common features)
int8_t sign_bias[4]
one state [0, 1] per ref frame type
Definition: vp8.h:146
uint8_t * intra4x4_pred_mode_top
Definition: vp8.h:170
uint8_t mbskip_enabled
Definition: vp8.h:141
uint8_t token[4][16][3][NUM_DCT_TOKENS-1]
Definition: vp8.h:228
struct VP8Macroblock VP8Macroblock
int linesize
Definition: vp8.h:136
AVFrame * next_framep[4]
Definition: vp8.h:130
VP56mv bmv[16]
Definition: vp8.h:93
uint8_t inner_filter
Definition: vp8.h:78
uint8_t segmentid[3]
Definition: vp8.h:221
uint8_t sharpness
Definition: vp8.h:165
2 16x8 blocks (vertical)
Definition: vp8.h:68
int update_probabilities
If this flag is not set, all the probability updates are discarded after this frame is decoded...
Definition: vp8.h:242
struct VP8FilterStrength VP8FilterStrength
inter_mvmode
Definition: vp8.h:61
uint8_t(* top_nnz)[9]
Definition: vp8.h:210
int num_jobs
Definition: vp8.h:265
uint8_t pred16x16[4]
Definition: vp8.h:226
uint8_t update_map
Definition: vp8.h:157
uint16_t mb_height
Definition: vp8.h:135
struct VP8Context::@62 filter
int update_golden
VP56_FRAME_NONE if not updated, or which frame to copy if so.
Definition: vp8.h:235
uint8_t intra4x4_pred_mode_top[4]
Definition: vp8.h:91
uint8_t
Definition: vp8.h:42
uint8_t ref_frame
Definition: vp8.h:86
AVFrame * curframe
Definition: vp8.h:131
Definition: vp8.h:50
VP8 compatible video decoder.
CRITICAL_SECTION pthread_mutex_t
Definition: w32pthreads.h:54
struct VP8Context::@61 segmentation
Base parameters for segmentation, i.e.
uint8_t mvc[2][19]
Definition: vp8.h:229
VP56mv mv
Definition: vp8.h:92
int8_t base_quant[4]
Definition: vp8.h:158
Context for storing H.264 prediction functions.
Definition: h264pred.h:92
int update_last
update VP56_FRAME_PREVIOUS with the current one
Definition: vp8.h:234
AVFrame * prev_frame
Definition: vp8.h:132
int num_coeff_partitions
All coefficients are contained in separate arith coding contexts.
Definition: vp8.h:248
vp8_mc_func put_pixels_tab[3][3][3]
Definition: vp8.h:253
uint8_t intra4x4_pred_mode_mb[16]
Definition: vp8.h:90
uint8_t intra4x4_pred_mode_left[4]
Definition: vp8.h:171
DCTELEM block[6][4][16]
Definition: vp8.h:97
struct VP8ThreadData VP8ThreadData
H264PredContext hpc
Definition: vp8.h:252
uint8_t absolute_vals
Definition: vp8.h:156
uint16_t mb_width
Definition: vp8.h:134
uint8_t last
Definition: vp8.h:224
uint8_t mode
Definition: vp8.h:85
AVCodecContext * avctx
Definition: vp8.h:128
VideoDSPContext vdsp
Definition: vp8.h:250
VP8Macroblock * macroblocks_base
Definition: vp8.h:232
Definition: vp8.h:47
uint8_t keyframe
Definition: vp8.h:139
int16_t luma_qmul[2]
Definition: vp8.h:180
int maps_are_invalid
Definition: vp8.h:264
struct VP8Context::@65 prob[2]
These are all of the updatable probabilities for binary decisions.
VP5 and VP6 compatible video decoder (common data)
DCTELEM block_dc[16]
Definition: vp8.h:98
4x4 blocks of 4x4px each
Definition: vp8.h:71
uint8_t deblock_filter
Definition: vp8.h:140
uint8_t mbskip
Definition: vp8.h:222
int8_t ref[4]
filter strength adjustment for macroblocks that reference: [0] - intra / VP56_FRAME_CURRENT [1] - VP5...
Definition: vp8.h:206
struct VP8Context::@63 qmat[4]
Macroblocks can have one of 4 different quants in a frame when segmentation is enabled.
void(* vp8_mc_func)(uint8_t *dst, ptrdiff_t dstStride, uint8_t *src, ptrdiff_t srcStride, int h, int x, int y)
Definition: vp8dsp.h:32
int16_t luma_dc_qmul[2]
luma dc-only block quant
Definition: vp8.h:181
int16_t chroma_qmul[2]
Definition: vp8.h:182
uint8_t(* top_border)[16+8+8]
Definition: vp8.h:209
uint8_t * edge_emu_buffer
Definition: vp8.h:121
uint8_t segment
Definition: vp8.h:89
Definition: vp8.h:49
AVFrame frames[5]
Definition: vp8.h:254
uint8_t simple
Definition: vp8.h:163
uint8_t level
Definition: vp8.h:164
Definition: vp8.h:53
main external API structure.
Definition: avcodec.h:1339
int mb_layout
This describes the macroblock memory layout.
Definition: vp8.h:271
uint8_t left_nnz[9]
For coeff decode, we need to know whether the above block had non-zero coefficients.
Definition: vp8.h:113
VP56RangeCoder c
header context, includes mb modes and motion vectors
Definition: vp8.h:212
VP56RangeCoder coeff_partition[8]
Definition: vp8.h:249
VP8FilterStrength * filter_strength
Definition: vp8.h:122
int num_maps_to_be_freed
Definition: vp8.h:263
uint8_t enabled
whether each mb can have a different strength based on mode/ref
Definition: vp8.h:155
struct VP8Context VP8Context
dct_token
Definition: vp8.h:41
Definition: vp8.h:51
int uvlinesize
Definition: vp8.h:137
VP56mv mv_max
Definition: vp8.h:144
uint8_t * segmentation_maps[5]
A list of segmentation_map buffers that are to be free()'ed in the next decoding iteration.
Definition: vp8.h:262
short DCTELEM
Definition: dsputil.h:39
Definition: vp8.h:43
H.264 / AVC / MPEG4 prediction functions.
Definition: vp56.h:39
int update_altref
Definition: vp8.h:236
int8_t mode[VP8_MVMODE_SPLIT+1]
filter strength adjustment for the following macroblock modes: [0-3] - i16x16 (always zero) [4] - i4x...
Definition: vp8.h:197
2 8x16 blocks (horizontal)
Definition: vp8.h:69
uint8_t pred8x8c[3]
Definition: vp8.h:227
Definition: vp8.h:46
uint8_t partitioning
Definition: vp8.h:87
int wait_mb_pos
Definition: vp8.h:120
uint8_t chroma_pred_mode
Definition: vp8.h:88
Definition: vp8.h:48
int invisible
Definition: vp8.h:233
int ref_count[3]
Definition: vp8.h:147
AVFrame * framep[4]
Definition: vp8.h:129
#define MODE_I4x4
Definition: vp8.h:59
VP8DSPContext vp8dsp
Definition: vp8.h:251
int thread_nr
Definition: vp8.h:114
inter_splitmvmode
Definition: vp8.h:67
w32threads to pthreads wrapper
int8_t filter_level[4]
base loop filter level
Definition: vp8.h:159
uint8_t intra
Definition: vp8.h:223
uint8_t non_zero_count_cache[6][4]
This is the index plus one of the last non-zero coeff for each of the blocks in the current macrobloc...
Definition: vp8.h:106
uint8_t skip
Definition: vp8.h:82
uint8_t profile
Definition: vp8.h:142
VP8ThreadData * thread_data
Definition: vp8.h:127
int thread_mb_pos
Definition: vp8.h:119
2x2 blocks of 8x8px each
Definition: vp8.h:70
struct VP8Context::@64 lf_delta
uint8_t filter_level
Definition: vp8.h:76