FFmpeg
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 Fiona Glaser
7  * Copyright (C) 2012 Daniel Kang
8  *
9  * This file is part of FFmpeg.
10  *
11  * FFmpeg 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  * FFmpeg 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 FFmpeg; 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 <stdatomic.h>
30 
31 #include "libavutil/mem_internal.h"
32 #include "libavutil/thread.h"
33 
34 #include "h264pred.h"
35 #include "threadframe.h"
36 #include "videodsp.h"
37 #include "vp8dsp.h"
38 #include "vpx_rac.h"
39 
40 #define VP8_MAX_QUANT 127
41 
42 typedef enum {
48 } VP8FrameType;
49 
50 enum dct_token {
63 
65 };
66 
67 // used to signal 4x4 intra pred in luma MBs
68 #define MODE_I4x4 4
69 
74 };
75 
77  VP8_SPLITMVMODE_16x8 = 0, ///< 2 16x8 blocks (vertical)
78  VP8_SPLITMVMODE_8x16, ///< 2 8x16 blocks (horizontal)
79  VP8_SPLITMVMODE_8x8, ///< 2x2 blocks of 8x8px each
80  VP8_SPLITMVMODE_4x4, ///< 4x4 blocks of 4x4px each
81  VP8_SPLITMVMODE_NONE, ///< (only used in prediction) no split MVs
82 };
83 
84 typedef struct VP8mv {
85  DECLARE_ALIGNED(4, int16_t, x);
86  int16_t y;
87 } VP8mv;
88 
89 typedef struct VP8FilterStrength {
90  uint8_t filter_level;
91  uint8_t inner_limit;
92  uint8_t inner_filter;
94 
95 typedef struct VP8Macroblock {
96  uint8_t skip;
97  // TODO: make it possible to check for at least (i4x4 or split_mv)
98  // in one op. are others needed?
99  uint8_t mode;
100  uint8_t ref_frame;
101  uint8_t partitioning;
103  uint8_t segment;
107  VP8mv bmv[16];
108 } VP8Macroblock;
109 
110 typedef struct VP8intmv {
111  int x;
112  int y;
113 } VP8intmv;
114 
115 typedef struct VP8mvbounds {
118 } VP8mvbounds;
119 
120 typedef struct VP8ThreadData {
121  DECLARE_ALIGNED(16, int16_t, block)[6][4][16];
122  DECLARE_ALIGNED(16, int16_t, block_dc)[16];
123  /**
124  * This is the index plus one of the last non-zero coeff
125  * for each of the blocks in the current macroblock.
126  * So, 0 -> no coeffs
127  * 1 -> dc-only (special transform)
128  * 2+-> full transform
129  */
131  /**
132  * For coeff decode, we need to know whether the above block had non-zero
133  * coefficients. This means for each macroblock, we need data for 4 luma
134  * blocks, 2 u blocks, 2 v blocks, and the luma dc block, for a total of 9
135  * per macroblock. We keep the last row in top_nnz.
136  */
137  DECLARE_ALIGNED(8, uint8_t, left_nnz)[9];
139 #if HAVE_THREADS
142 #endif
143  atomic_int thread_mb_pos; // (mb_y << 16) | (mb_x & 0xFFFF)
144  atomic_int wait_mb_pos; // What the current thread is waiting on.
145 
146 #define EDGE_EMU_LINESIZE 32
150 } VP8ThreadData;
151 
152 typedef struct VP8Frame {
154  uint8_t *seg_map; ///< RefStruct reference
155 
156  void *hwaccel_picture_private; ///< RefStruct reference
157 } VP8Frame;
158 
159 #define MAX_THREADS 8
160 typedef struct VP8Context {
165 
170 
171  uint16_t mb_width; /* number of horizontal MB */
172  uint16_t mb_height; /* number of vertical MB */
173  ptrdiff_t linesize;
174  ptrdiff_t uvlinesize;
175 
176  uint8_t keyframe;
177  uint8_t deblock_filter;
178  uint8_t mbskip_enabled;
179  uint8_t profile;
181 
182  int8_t sign_bias[4]; ///< one state [0, 1] per ref frame type
183  int ref_count[3];
184 
185  /**
186  * Base parameters for segmentation, i.e. per-macroblock parameters.
187  * These must be kept unchanged even if segmentation is not used for
188  * a frame, since the values persist between interframes.
189  */
190  struct {
191  uint8_t enabled;
192  uint8_t absolute_vals;
193  uint8_t update_map;
195  int8_t base_quant[4];
196  int8_t filter_level[4]; ///< base loop filter level
197  } segmentation;
198 
199  struct {
200  uint8_t simple;
201  uint8_t level;
202  uint8_t sharpness;
203  } filter;
204 
206 
209 
210  /**
211  * Macroblocks can have one of 4 different quants in a frame when
212  * segmentation is enabled.
213  * If segmentation is disabled, only the first segment's values are used.
214  */
215  struct {
216  // [0] - DC qmul [1] - AC qmul
217  int16_t luma_qmul[2];
218  int16_t luma_dc_qmul[2]; ///< luma dc-only block quant
219  int16_t chroma_qmul[2];
220  } qmat[4];
221 
222  // Raw quantisation values, which may be needed by hwaccel decode.
223  struct {
224  int yac_qi;
230  } quant;
231 
232  struct {
233  uint8_t enabled; ///< whether each mb can have a different strength based on mode/ref
234  uint8_t update;
235 
236  /**
237  * filter strength adjustment for the following macroblock modes:
238  * [0-3] - i16x16 (always zero)
239  * [4] - i4x4
240  * [5] - zero mv
241  * [6] - inter modes except for zero or split mv
242  * [7] - split mv
243  * i16x16 modes never have any adjustment
244  */
245  int8_t mode[VP8_MVMODE_SPLIT + 1];
246 
247  /**
248  * filter strength adjustment for macroblocks that reference:
249  * [0] - intra / VP8_FRAME_CURRENT
250  * [1] - VP8_FRAME_PREVIOUS
251  * [2] - VP8_FRAME_GOLDEN
252  * [3] - altref / VP8_FRAME_ALTREF
253  */
254  int8_t ref[4];
255  } lf_delta;
256 
257  uint8_t (*top_border)[16 + 8 + 8];
258  uint8_t (*top_nnz)[9];
259 
260  VPXRangeCoder c; ///< header context, includes mb modes and motion vectors
261 
262  /* This contains the entropy coder state at the end of the header
263  * block, in the form specified by the standard. For use by
264  * hwaccels, so that a hardware decoder has the information to
265  * start decoding at the macroblock layer.
266  */
267  struct {
268  const uint8_t *input;
269  uint32_t range;
270  uint32_t value;
273 
275 
276  /**
277  * These are all of the updatable probabilities for binary decisions.
278  * They are only implicitly reset on keyframes, making it quite likely
279  * for an interframe to desync if a prior frame's header was corrupt
280  * or missing outright!
281  */
282  struct {
283  uint8_t segmentid[3];
284  uint8_t mbskip;
285  uint8_t intra;
286  uint8_t last;
287  uint8_t golden;
288  uint8_t pred16x16[4];
289  uint8_t pred8x8c[3];
290  uint8_t token[4][16][3][NUM_DCT_TOKENS - 1];
291  uint8_t mvc[2][19];
292  uint8_t scan[16];
293  } prob[2];
294 
297  int update_last; ///< update VP8_FRAME_PREVIOUS with the current one
298  int update_golden; ///< VP8_FRAME_NONE if not updated, or which frame to copy if so
300 
301  /**
302  * If this flag is not set, all the probability updates
303  * are discarded after this frame is decoded.
304  */
306 
307  /**
308  * All coefficients are contained in separate arith coding contexts.
309  * There can be 1, 2, 4, or 8 of these after the header context.
310  */
319 
320  uint8_t colorspace; ///< 0 is the only value allowed (meaning bt601)
321  uint8_t fullrange; ///< whether we can skip clamping in dsp functions
322 
323  int num_jobs;
324  /**
325  * This describes the macroblock memory layout.
326  * 0 -> Only width+height*2+1 macroblocks allocated (frame/single thread).
327  * 1 -> Macroblocks for entire frame allocated (sliced thread).
328  */
330 
331  int (*decode_mb_row_no_filter)(AVCodecContext *avctx, void *tdata, int jobnr, int threadnr);
332  void (*filter_mb_row)(AVCodecContext *avctx, void *tdata, int jobnr, int threadnr);
333 
334  /**
335  * Interframe DC prediction (VP7)
336  * [0] VP8_FRAME_PREVIOUS
337  * [1] VP8_FRAME_GOLDEN
338  */
339  uint16_t inter_dc_pred[2][2];
340 
341  /**
342  * Macroblock features (VP7)
343  */
344  uint8_t feature_enabled[4];
346  uint8_t feature_index_prob[4][3];
347  uint8_t feature_value[4][4];
348 } VP8Context;
349 
351 
353  int *got_frame, AVPacket *avpkt);
354 
356 
357 #endif /* AVCODEC_VP8_H */
VP8Context::num_jobs
int num_jobs
Definition: vp8.h:323
VP8ThreadData::thread_mb_pos
atomic_int thread_mb_pos
Definition: vp8.h:143
VP8Macroblock::intra4x4_pred_mode_mb
uint8_t intra4x4_pred_mode_mb[16]
Definition: vp8.h:104
pthread_mutex_t
_fmutex pthread_mutex_t
Definition: os2threads.h:53
VP8Context::prev_frame
VP8Frame * prev_frame
Definition: vp8.h:169
VP8Context::coeff_partition_size
int coeff_partition_size[8]
Definition: vp8.h:313
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
VP8Context::intra4x4_pred_mode_top
uint8_t * intra4x4_pred_mode_top
Definition: vp8.h:207
VP8Macroblock::partitioning
uint8_t partitioning
Definition: vp8.h:101
VP8Context::macroblocks_base
VP8Macroblock * macroblocks_base
Definition: vp8.h:295
VP8_FRAME_CURRENT
@ VP8_FRAME_CURRENT
Definition: vp8.h:44
mem_internal.h
VP8Context::top_border
uint8_t(* top_border)[16+8+8]
Definition: vp8.h:257
thread.h
DCT_2
@ DCT_2
Definition: vp8.h:53
VP8FilterStrength::inner_filter
uint8_t inner_filter
Definition: vp8.h:92
DCT_4
@ DCT_4
Definition: vp8.h:55
VP8Context::thread_data
VP8ThreadData * thread_data
Definition: vp8.h:161
VP8Context::segmentid
uint8_t segmentid[3]
Definition: vp8.h:283
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:340
VP8Context::top_nnz
uint8_t(* top_nnz)[9]
Definition: vp8.h:258
VP8Context::num_coeff_partitions
int num_coeff_partitions
All coefficients are contained in separate arith coding contexts.
Definition: vp8.h:311
inter_mvmode
inter_mvmode
Definition: vp8.h:70
VP8Context::put_pixels_tab
vp8_mc_func put_pixels_tab[3][3][3]
Definition: vp8.h:317
atomic_int
intptr_t atomic_int
Definition: stdatomic.h:55
VP8intmv::y
int y
Definition: vp8.h:112
VP8Context::uvdc_delta
int uvdc_delta
Definition: vp8.h:228
VP8mvbounds
Definition: vp8.h:115
VP8_SPLITMVMODE_4x4
@ VP8_SPLITMVMODE_4x4
4x4 blocks of 4x4px each
Definition: vp8.h:80
VP8Context::prob
struct VP8Context::@202 prob[2]
These are all of the updatable probabilities for binary decisions.
VP8_FRAME_ALTREF
@ VP8_FRAME_ALTREF
Definition: vp8.h:47
VP8Context::value
uint32_t value
Definition: vp8.h:270
VPXRangeCoder
Definition: vpx_rac.h:35
VP8intmv
Definition: vp8.h:110
VP8FilterStrength::inner_limit
uint8_t inner_limit
Definition: vp8.h:91
VP8Context::vdsp
VideoDSPContext vdsp
Definition: vp8.h:314
VP8Context::enabled
uint8_t enabled
whether each mb can have a different strength based on mode/ref
Definition: vp8.h:191
VP8Context::framep
VP8Frame * framep[4]
Definition: vp8.h:166
VP8Context::quant
struct VP8Context::@199 quant
VP8Context::mb_height
uint16_t mb_height
Definition: vp8.h:172
VP8_SPLITMVMODE_8x8
@ VP8_SPLITMVMODE_8x8
2x2 blocks of 8x8px each
Definition: vp8.h:79
VP8Context::hpc
H264PredContext hpc
Definition: vp8.h:316
VP8Context::segmentation
struct VP8Context::@196 segmentation
Base parameters for segmentation, i.e.
VP8ThreadData::non_zero_count_cache
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:130
VP8Context::simple
uint8_t simple
Definition: vp8.h:200
VP8mv::y
int16_t y
Definition: vp8.h:86
VP8Context::feature_enabled
uint8_t feature_enabled[4]
Macroblock features (VP7)
Definition: vp8.h:344
VP8Context::luma_qmul
int16_t luma_qmul[2]
Definition: vp8.h:217
ff_vp8_decode_free
int ff_vp8_decode_free(AVCodecContext *avctx)
Definition: vp8.c:2860
VP8Macroblock::bmv
VP8mv bmv[16]
Definition: vp8.h:107
VP8Context::actually_webp
int actually_webp
Definition: vp8.h:164
DCT_CAT4
@ DCT_CAT4
Definition: vp8.h:59
VP8Context::coeff_partition
VPXRangeCoder coeff_partition[8]
Definition: vp8.h:312
VP8_SPLITMVMODE_16x8
@ VP8_SPLITMVMODE_16x8
2 16x8 blocks (vertical)
Definition: vp8.h:77
VP8Context::deblock_filter
uint8_t deblock_filter
Definition: vp8.h:177
VP8Macroblock::skip
uint8_t skip
Definition: vp8.h:96
VP8Context::ref
int8_t ref[4]
filter strength adjustment for macroblocks that reference: [0] - intra / VP8_FRAME_CURRENT [1] - VP8_...
Definition: vp8.h:254
VP8Context::mbskip
uint8_t mbskip
Definition: vp8.h:284
vp8dsp.h
VP8Context::update_golden
int update_golden
VP8_FRAME_NONE if not updated, or which frame to copy if so.
Definition: vp8.h:298
VP8Context::mbskip_enabled
uint8_t mbskip_enabled
Definition: vp8.h:178
VP8Context::uvlinesize
ptrdiff_t uvlinesize
Definition: vp8.h:174
VP8ThreadData::left_nnz
uint8_t left_nnz[9]
For coeff decode, we need to know whether the above block had non-zero coefficients.
Definition: vp8.h:137
VP8Context::y2ac_delta
int y2ac_delta
Definition: vp8.h:227
DCT_CAT3
@ DCT_CAT3
Definition: vp8.h:58
VP8Context::mv_bounds
VP8mvbounds mv_bounds
Definition: vp8.h:180
VP8Context::chroma_qmul
int16_t chroma_qmul[2]
Definition: vp8.h:219
VP8Frame::tf
ThreadFrame tf
Definition: vp8.h:153
VP8ThreadData::filter_strength
VP8FilterStrength * filter_strength
Definition: vp8.h:148
DCT_EOB
@ DCT_EOB
Definition: vp8.h:62
VP8Context::yac_qi
int yac_qi
Definition: vp8.h:224
inter_splitmvmode
inter_splitmvmode
Definition: vp8.h:76
VP8Context::vp8dsp
VP8DSPContext vp8dsp
Definition: vp8.h:315
VP8Context::sharpness
uint8_t sharpness
Definition: vp8.h:202
VP8Context::keyframe
uint8_t keyframe
Definition: vp8.h:176
VP8Context::token
uint8_t token[4][16][3][NUM_DCT_TOKENS - 1]
Definition: vp8.h:290
DCT_0
@ DCT_0
Definition: vp8.h:51
VP8_SPLITMVMODE_8x16
@ VP8_SPLITMVMODE_8x16
2 8x16 blocks (horizontal)
Definition: vp8.h:78
VP8Context::avctx
AVCodecContext * avctx
Definition: vp8.h:162
dct_token
dct_token
Definition: vp8.h:50
VP8Frame::seg_map
uint8_t * seg_map
RefStruct reference.
Definition: vp8.h:154
frame
static AVFrame * frame
Definition: demux_decode.c:54
VP8Context::curframe
VP8Frame * curframe
Definition: vp8.h:168
VP8Context::pred16x16
uint8_t pred16x16[4]
Definition: vp8.h:288
ff_vp8_decode_init
int ff_vp8_decode_init(AVCodecContext *avctx)
Definition: vp8.c:2926
threadframe.h
VP8Context::update_map
uint8_t update_map
Definition: vp8.h:193
DCT_CAT1
@ DCT_CAT1
Definition: vp8.h:56
VP8Context::last
uint8_t last
Definition: vp8.h:286
VP8Context::bit_count
int bit_count
Definition: vp8.h:271
VP8Context::filter_level
int8_t filter_level[4]
base loop filter level
Definition: vp8.h:196
VP8FilterStrength
Definition: vp8.h:89
VP8Context::update
uint8_t update
Definition: vp8.h:234
VP8Context::mvc
uint8_t mvc[2][19]
Definition: vp8.h:291
VP8Context::linesize
ptrdiff_t linesize
Definition: vp8.h:173
NUM_DCT_TOKENS
@ NUM_DCT_TOKENS
Definition: vp8.h:64
VP8Context::luma_dc_qmul
int16_t luma_dc_qmul[2]
luma dc-only block quant
Definition: vp8.h:218
VP8Context::mb_width
uint16_t mb_width
Definition: vp8.h:171
vp8_mc_func
void(* vp8_mc_func)(uint8_t *dst, ptrdiff_t dstStride, const uint8_t *src, ptrdiff_t srcStride, int h, int x, int y)
Definition: vp8dsp.h:33
VP8Context::macroblocks
VP8Macroblock * macroblocks
Definition: vp8.h:205
VP8FrameType
VP8FrameType
Definition: vp8.h:42
VP8mv
Definition: vp8.h:84
VP8Frame
Definition: vp8.h:152
VP8Context::frames
VP8Frame frames[5]
Definition: vp8.h:318
VP8Context::feature_index_prob
uint8_t feature_index_prob[4][3]
Definition: vp8.h:346
VP8_FRAME_GOLDEN
@ VP8_FRAME_GOLDEN
Definition: vp8.h:46
VP8Context::update_probabilities
int update_probabilities
If this flag is not set, all the probability updates are discarded after this frame is decoded.
Definition: vp8.h:305
VP8DSPContext
Definition: vp8dsp.h:37
VP8Context::intra4x4_pred_mode_left
uint8_t intra4x4_pred_mode_left[4]
Definition: vp8.h:208
VP8Context::pred8x8c
uint8_t pred8x8c[3]
Definition: vp8.h:289
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem_internal.h:87
VP8Context::range
uint32_t range
Definition: vp8.h:269
VP8ThreadData::thread_nr
int thread_nr
Definition: vp8.h:138
EDGE_EMU_LINESIZE
#define EDGE_EMU_LINESIZE
Definition: vp8.h:146
VP8Context::colorspace
uint8_t colorspace
0 is the only value allowed (meaning bt601)
Definition: vp8.h:320
VP8Macroblock::ref_frame
uint8_t ref_frame
Definition: vp8.h:100
VP8FilterStrength::filter_level
uint8_t filter_level
Definition: vp8.h:90
VP8Context::mb_layout
int mb_layout
This describes the macroblock memory layout.
Definition: vp8.h:329
VP8Context::update_last
int update_last
update VP8_FRAME_PREVIOUS with the current one
Definition: vp8.h:297
VP8Context::decode_mb_row_no_filter
int(* decode_mb_row_no_filter)(AVCodecContext *avctx, void *tdata, int jobnr, int threadnr)
Definition: vp8.h:331
DCT_1
@ DCT_1
Definition: vp8.h:52
VP8Context::c
VPXRangeCoder c
header context, includes mb modes and motion vectors
Definition: vp8.h:260
VP8ThreadData::mv_bounds
VP8mvbounds mv_bounds
Definition: vp8.h:149
VP8Context::lf_delta
struct VP8Context::@200 lf_delta
VP8ThreadData
Definition: vp8.h:120
VP8Macroblock::chroma_pred_mode
uint8_t chroma_pred_mode
Definition: vp8.h:102
VP8Context::update_feature_data
uint8_t update_feature_data
Definition: vp8.h:194
VP8Context::invisible
int invisible
Definition: vp8.h:296
MODE_I4x4
#define MODE_I4x4
Definition: vp8.h:68
VP8Context::ref_count
int ref_count[3]
Definition: vp8.h:183
VP8ThreadData::edge_emu_buffer
uint8_t edge_emu_buffer[21 *EDGE_EMU_LINESIZE]
Definition: vp8.h:147
DCT_CAT5
@ DCT_CAT5
Definition: vp8.h:60
VP8Context::absolute_vals
uint8_t absolute_vals
Definition: vp8.h:192
VP8Context::header_partition_size
int header_partition_size
Definition: vp8.h:274
VP8Context::golden
uint8_t golden
Definition: vp8.h:287
VP8Macroblock::segment
uint8_t segment
Definition: vp8.h:103
VP8ThreadData::wait_mb_pos
atomic_int wait_mb_pos
Definition: vp8.h:144
VP8Context::next_framep
VP8Frame * next_framep[4]
Definition: vp8.h:167
vpx_rac.h
VP8Context::fullrange
uint8_t fullrange
whether we can skip clamping in dsp functions
Definition: vp8.h:321
VP8Context::feature_present_prob
uint8_t feature_present_prob[4]
Definition: vp8.h:345
VP8Context::y2dc_delta
int y2dc_delta
Definition: vp8.h:226
VP8mv::x
int16_t x
Definition: vp8.h:85
VP8mvbounds::mv_max
VP8intmv mv_max
Definition: vp8.h:117
pthread_cond_t
Definition: os2threads.h:58
VP8_FRAME_NONE
@ VP8_FRAME_NONE
Definition: vp8.h:43
VP8Macroblock
Definition: vp8.h:95
VP8Context::filter_mb_row
void(* filter_mb_row)(AVCodecContext *avctx, void *tdata, int jobnr, int threadnr)
Definition: vp8.h:332
VP8_SPLITMVMODE_NONE
@ VP8_SPLITMVMODE_NONE
(only used in prediction) no split MVs
Definition: vp8.h:81
VP8Context::sign_bias
int8_t sign_bias[4]
one state [0, 1] per ref frame type
Definition: vp8.h:182
ff_vp8_decode_frame
int ff_vp8_decode_frame(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *avpkt)
Definition: vp8.c:2846
DCT_CAT2
@ DCT_CAT2
Definition: vp8.h:57
VP8Context::profile
uint8_t profile
Definition: vp8.h:179
DCT_3
@ DCT_3
Definition: vp8.h:54
h264pred.h
VP8Macroblock::mv
VP8mv mv
Definition: vp8.h:106
AVCodecContext
main external API structure.
Definition: avcodec.h:445
VP8Macroblock::intra4x4_pred_mode_top
uint8_t intra4x4_pred_mode_top[4]
Definition: vp8.h:105
lock
static pthread_mutex_t lock
Definition: ffjni.c:39
ThreadFrame
Definition: threadframe.h:27
mode
mode
Definition: ebur128.h:83
VP8Macroblock::mode
uint8_t mode
Definition: vp8.h:99
VP8intmv::x
int x
Definition: vp8.h:111
VP8Context::filter
struct VP8Context::@197 filter
VP8_MVMODE_SPLIT
@ VP8_MVMODE_SPLIT
Definition: vp8.h:73
VP8Context::coder_state_at_header_end
struct VP8Context::@201 coder_state_at_header_end
VideoDSPContext
Definition: videodsp.h:40
H264PredContext
Context for storing H.264 prediction functions.
Definition: h264pred.h:94
VP8mvbounds::mv_min
VP8intmv mv_min
Definition: vp8.h:116
VP8Context::feature_value
uint8_t feature_value[4][4]
Definition: vp8.h:347
VP8Context::pix_fmt
enum AVPixelFormat pix_fmt
Definition: vp8.h:163
VP8ThreadData::block
int16_t block[6][4][16]
Definition: vp8.h:121
VP8Context::intra
uint8_t intra
Definition: vp8.h:285
AVPacket
This structure stores compressed data.
Definition: packet.h:499
VP8Context::base_quant
int8_t base_quant[4]
Definition: vp8.h:195
VP8Context::ydc_delta
int ydc_delta
Definition: vp8.h:225
DCT_CAT6
@ DCT_CAT6
Definition: vp8.h:61
videodsp.h
VP8Context::input
const uint8_t * input
Definition: vp8.h:268
VP8Context
Definition: vp8.h:160
VP8Context::uvac_delta
int uvac_delta
Definition: vp8.h:229
VP8_MVMODE_ZERO
@ VP8_MVMODE_ZERO
Definition: vp8.h:71
VP8Context::inter_dc_pred
uint16_t inter_dc_pred[2][2]
Interframe DC prediction (VP7) [0] VP8_FRAME_PREVIOUS [1] VP8_FRAME_GOLDEN.
Definition: vp8.h:339
VP8Context::qmat
struct VP8Context::@198 qmat[4]
Macroblocks can have one of 4 different quants in a frame when segmentation is enabled.
VP8Context::scan
uint8_t scan[16]
Definition: vp8.h:292
VP8Context::level
uint8_t level
Definition: vp8.h:201
VP8Context::update_altref
int update_altref
Definition: vp8.h:299
VP8ThreadData::block_dc
int16_t block_dc[16]
Definition: vp8.h:122
int
int
Definition: ffmpeg_filter.c:424
VP8_FRAME_PREVIOUS
@ VP8_FRAME_PREVIOUS
Definition: vp8.h:45
VP8_MVMODE_MV
@ VP8_MVMODE_MV
Definition: vp8.h:72
cond
int(* cond)(enum AVPixelFormat pix_fmt)
Definition: pixdesc_query.c:28
VP8Frame::hwaccel_picture_private
void * hwaccel_picture_private
RefStruct reference.
Definition: vp8.h:156