FFmpeg
vf_deblock.c
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1 /*
2  * Copyright (c) 2018 Paul B Mahol
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /*
22  * Based on paper: A Simple and Efficient Deblocking Algorithm for Low Bit-Rate Video Coding.
23  */
24 
25 #include "libavutil/imgutils.h"
26 #include "libavutil/opt.h"
27 #include "libavutil/pixdesc.h"
28 
29 #include "avfilter.h"
30 #include "formats.h"
31 #include "internal.h"
32 #include "video.h"
33 
34 enum FilterType { WEAK, STRONG, NB_FILTER };
35 
36 typedef struct DeblockContext {
37  const AVClass *class;
38  const AVPixFmtDescriptor *desc;
39  int filter;
40  int block;
41  int planes;
42  float alpha;
43  float beta;
44  float gamma;
45  float delta;
46 
47  int ath;
48  int bth;
49  int gth;
50  int dth;
51  int max;
52  int depth;
53  int bpc;
54  int nb_planes;
55  int planewidth[4];
56  int planeheight[4];
57 
58  void (*deblockh)(uint8_t *dst, ptrdiff_t dst_linesize, int block,
59  int ath, int bth, int gth, int dth, int max);
60  void (*deblockv)(uint8_t *dst, ptrdiff_t dst_linesize, int block,
61  int ath, int bth, int gth, int dth, int max);
62 } DeblockContext;
63 
64 static int query_formats(AVFilterContext *ctx)
65 {
66  static const enum AVPixelFormat pixel_fmts[] = {
67  AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
68  AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
69  AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
70  AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
71  AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
72  AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
73  AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
74  AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
75  AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
76  AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
77  AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
78  AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
79  AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
80  AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
81  AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
82  AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
83  AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
84  AV_PIX_FMT_NONE
85  };
86  AVFilterFormats *formats = ff_make_format_list(pixel_fmts);
87  if (!formats)
88  return AVERROR(ENOMEM);
89  return ff_set_common_formats(ctx, formats);
90 }
91 
92 #define WEAK_HFILTER(name, type, ldiv) \
93 static void deblockh##name##_weak(uint8_t *dstp, ptrdiff_t dst_linesize, int block, \
94  int ath, int bth, int gth, int dth, int max) \
95 { \
96  type *dst; \
97  int x; \
98  \
99  dst = (type *)dstp; \
100  dst_linesize /= ldiv; \
101  \
102  for (x = 0; x < block; x++) { \
103  int delta = dst[x] - dst[x - dst_linesize]; \
104  int A, B, C, D, a, b, c, d; \
105  \
106  if (FFABS(delta) >= ath || \
107  FFABS(dst[x - 1 * dst_linesize] - dst[x - 2 * dst_linesize]) >= bth || \
108  FFABS(dst[x + 0 * dst_linesize] - dst[x + 1 * dst_linesize]) >= gth) \
109  continue; \
110  \
111  A = dst[x - 2 * dst_linesize]; \
112  B = dst[x - 1 * dst_linesize]; \
113  C = dst[x + 0 * dst_linesize]; \
114  D = dst[x + 1 * dst_linesize]; \
115  \
116  a = A + delta / 8; \
117  b = B + delta / 2; \
118  c = C - delta / 2; \
119  d = D - delta / 8; \
120  \
121  dst[x - 2 * dst_linesize] = av_clip(a, 0, max); \
122  dst[x - 1 * dst_linesize] = av_clip(b, 0, max); \
123  dst[x + 0 * dst_linesize] = av_clip(c, 0, max); \
124  dst[x + 1 * dst_linesize] = av_clip(d, 0, max); \
125  } \
126 }
127 
128 WEAK_HFILTER(8, uint8_t, 1)
129 WEAK_HFILTER(16, uint16_t, 2)
130 
131 #define WEAK_VFILTER(name, type, ldiv) \
132 static void deblockv##name##_weak(uint8_t *dstp, ptrdiff_t dst_linesize, int block, \
133  int ath, int bth, int gth, int dth, int max) \
134 { \
135  type *dst; \
136  int y; \
137  \
138  dst = (type *)dstp; \
139  dst_linesize /= ldiv; \
140  \
141  for (y = 0; y < block; y++) { \
142  int delta = dst[0] - dst[-1]; \
143  int A, B, C, D, a, b, c, d; \
144  \
145  if (FFABS(delta) >= ath || \
146  FFABS(dst[-1] - dst[-2]) >= bth || \
147  FFABS(dst[0] - dst[1]) >= gth) \
148  continue; \
149  \
150  A = dst[-2]; \
151  B = dst[-1]; \
152  C = dst[+0]; \
153  D = dst[+1]; \
154  \
155  a = A + delta / 8; \
156  b = B + delta / 2; \
157  c = C - delta / 2; \
158  d = D - delta / 8; \
159  \
160  dst[-2] = av_clip(a, 0, max); \
161  dst[-1] = av_clip(b, 0, max); \
162  dst[+0] = av_clip(c, 0, max); \
163  dst[+1] = av_clip(d, 0, max); \
164  \
165  dst += dst_linesize; \
166  } \
167 }
168 
169 WEAK_VFILTER(8, uint8_t, 1)
170 WEAK_VFILTER(16, uint16_t, 2)
171 
172 #define STRONG_HFILTER(name, type, ldiv) \
173 static void deblockh##name##_strong(uint8_t *dstp, ptrdiff_t dst_linesize, int block,\
174  int ath, int bth, int gth, int dth, int max) \
175 { \
176  type *dst; \
177  int x; \
178  \
179  dst = (type *)dstp; \
180  dst_linesize /= ldiv; \
181  \
182  for (x = 0; x < block; x++) { \
183  int A, B, C, D, E, F, a, b, c, d, e, f; \
184  int delta = dst[x] - dst[x - dst_linesize]; \
185  \
186  if (FFABS(delta) >= ath || \
187  FFABS(dst[x - 1 * dst_linesize] - dst[x - 2 * dst_linesize]) >= bth || \
188  FFABS(dst[x + 1 * dst_linesize] - dst[x + 2 * dst_linesize]) >= gth || \
189  FFABS(dst[x + 0 * dst_linesize] - dst[x + 1 * dst_linesize]) >= dth) \
190  continue; \
191  \
192  A = dst[x - 3 * dst_linesize]; \
193  B = dst[x - 2 * dst_linesize]; \
194  C = dst[x - 1 * dst_linesize]; \
195  D = dst[x + 0 * dst_linesize]; \
196  E = dst[x + 1 * dst_linesize]; \
197  F = dst[x + 2 * dst_linesize]; \
198  \
199  a = A + delta / 8; \
200  b = B + delta / 4; \
201  c = C + delta / 2; \
202  d = D - delta / 2; \
203  e = E - delta / 4; \
204  f = F - delta / 8; \
205  \
206  dst[x - 3 * dst_linesize] = av_clip(a, 0, max); \
207  dst[x - 2 * dst_linesize] = av_clip(b, 0, max); \
208  dst[x - 1 * dst_linesize] = av_clip(c, 0, max); \
209  dst[x + 0 * dst_linesize] = av_clip(d, 0, max); \
210  dst[x + 1 * dst_linesize] = av_clip(e, 0, max); \
211  dst[x + 2 * dst_linesize] = av_clip(f, 0, max); \
212  } \
213 }
214 
215 STRONG_HFILTER(8, uint8_t, 1)
216 STRONG_HFILTER(16, uint16_t, 2)
217 
218 #define STRONG_VFILTER(name, type, ldiv) \
219 static void deblockv##name##_strong(uint8_t *dstp, ptrdiff_t dst_linesize, int block,\
220  int ath, int bth, int gth, int dth, int max) \
221 { \
222  type *dst; \
223  int y; \
224  \
225  dst = (type *)dstp; \
226  dst_linesize /= ldiv; \
227  \
228  for (y = 0; y < block; y++) { \
229  int A, B, C, D, E, F, a, b, c, d, e, f; \
230  int delta = dst[0] - dst[-1]; \
231  \
232  if (FFABS(delta) >= ath || \
233  FFABS(dst[-1] - dst[-2]) >= bth || \
234  FFABS(dst[+1] - dst[+2]) >= gth || \
235  FFABS(dst[+0] - dst[+1]) >= dth) \
236  continue; \
237  \
238  A = dst[-3]; \
239  B = dst[-2]; \
240  C = dst[-1]; \
241  D = dst[+0]; \
242  E = dst[+1]; \
243  F = dst[+2]; \
244  \
245  a = A + delta / 8; \
246  b = B + delta / 4; \
247  c = C + delta / 2; \
248  d = D - delta / 2; \
249  e = E - delta / 4; \
250  f = F - delta / 8; \
251  \
252  dst[-3] = av_clip(a, 0, max); \
253  dst[-2] = av_clip(b, 0, max); \
254  dst[-1] = av_clip(c, 0, max); \
255  dst[+0] = av_clip(d, 0, max); \
256  dst[+1] = av_clip(e, 0, max); \
257  dst[+2] = av_clip(f, 0, max); \
258  \
259  dst += dst_linesize; \
260  } \
261 }
262 
263 STRONG_VFILTER(8, uint8_t, 1)
264 STRONG_VFILTER(16, uint16_t, 2)
265 
266 static int config_output(AVFilterLink *outlink)
267 {
268  AVFilterContext *ctx = outlink->src;
269  DeblockContext *s = ctx->priv;
270  AVFilterLink *inlink = ctx->inputs[0];
271 
272  s->desc = av_pix_fmt_desc_get(outlink->format);
273  if (!s->desc)
274  return AVERROR_BUG;
275  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
276  s->depth = s->desc->comp[0].depth;
277  s->bpc = (s->depth + 7) / 8;
278  s->max = (1 << s->depth) - 1;
279  s->ath = s->alpha * s->max;
280  s->bth = s->beta * s->max;
281  s->gth = s->gamma * s->max;
282  s->dth = s->delta * s->max;
283 
284  if (s->depth <= 8 && s->filter == WEAK) {
285  s->deblockh = deblockh8_weak;
286  s->deblockv = deblockv8_weak;
287  } else if (s->depth >= 8 && s->filter == WEAK) {
288  s->deblockh = deblockh16_weak;
289  s->deblockv = deblockv16_weak;
290  }
291  if (s->depth <= 8 && s->filter == STRONG) {
292  s->deblockh = deblockh8_strong;
293  s->deblockv = deblockv8_strong;
294  } else if (s->depth >= 8 && s->filter == STRONG) {
295  s->deblockh = deblockh16_strong;
296  s->deblockv = deblockv16_strong;
297  }
298 
299  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, s->desc->log2_chroma_w);
300  s->planewidth[0] = s->planewidth[3] = inlink->w;
301 
302  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
303  s->planeheight[0] = s->planeheight[3] = inlink->h;
304 
305  return 0;
306 }
307 
308 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
309 {
310  AVFilterContext *ctx = inlink->dst;
311  AVFilterLink *outlink = ctx->outputs[0];
312  DeblockContext *s = ctx->priv;
313  const int block = s->block;
314  AVFrame *out;
315  int plane, x, y;
316 
317  if (av_frame_is_writable(in)) {
318  out = in;
319  } else {
320  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
321  if (!out) {
322  av_frame_free(&in);
323  return AVERROR(ENOMEM);
324  }
325  av_frame_copy_props(out, in);
326  }
327 
328  for (plane = 0; plane < s->nb_planes; plane++) {
329  const int width = s->planewidth[plane];
330  const int height = s->planeheight[plane];
331  const uint8_t *src = (const uint8_t *)in->data[plane];
332  uint8_t *dst = (uint8_t *)out->data[plane];
333 
334  if (in != out)
335  av_image_copy_plane(dst, out->linesize[plane],
336  src, in->linesize[plane],
337  width * s->bpc, height);
338 
339  if (!((1 << plane) & s->planes))
340  continue;
341 
342  for (x = block; x < width; x += block)
343  s->deblockv(dst + x * s->bpc, out->linesize[plane],
344  FFMIN(block, height), s->ath, s->bth, s->gth, s->dth, s->max);
345 
346  for (y = block; y < height; y += block) {
347  dst += out->linesize[plane] * block;
348 
349  s->deblockh(dst, out->linesize[plane],
350  FFMIN(block, width),
351  s->ath, s->bth, s->gth, s->dth, s->max);
352 
353  for (x = block; x < width; x += block) {
354  s->deblockh(dst + x * s->bpc, out->linesize[plane],
355  FFMIN(block, width - x),
356  s->ath, s->bth, s->gth, s->dth, s->max);
357  s->deblockv(dst + x * s->bpc, out->linesize[plane],
358  FFMIN(block, height - y),
359  s->ath, s->bth, s->gth, s->dth, s->max);
360  }
361  }
362  }
363 
364  if (in != out)
365  av_frame_free(&in);
366  return ff_filter_frame(outlink, out);
367 }
368 
369 #define OFFSET(x) offsetof(DeblockContext, x)
370 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
371 
372 static const AVOption deblock_options[] = {
373  { "filter", "set type of filter", OFFSET(filter), AV_OPT_TYPE_INT, {.i64=STRONG},0, 1, FLAGS, "filter" },
374  { "weak", 0, 0, AV_OPT_TYPE_CONST, {.i64=WEAK}, 0, 0, FLAGS, "filter" },
375  { "strong", 0, 0, AV_OPT_TYPE_CONST, {.i64=STRONG},0, 0, FLAGS, "filter" },
376  { "block", "set size of block", OFFSET(block), AV_OPT_TYPE_INT, {.i64=8}, 4, 512, FLAGS },
377  { "alpha", "set 1st detection threshold", OFFSET(alpha), AV_OPT_TYPE_FLOAT, {.dbl=.098}, 0, 1, FLAGS },
378  { "beta", "set 2nd detection threshold", OFFSET(beta), AV_OPT_TYPE_FLOAT, {.dbl=.05}, 0, 1, FLAGS },
379  { "gamma", "set 3rd detection threshold", OFFSET(gamma), AV_OPT_TYPE_FLOAT, {.dbl=.05}, 0, 1, FLAGS },
380  { "delta", "set 4th detection threshold", OFFSET(delta), AV_OPT_TYPE_FLOAT, {.dbl=.05}, 0, 1, FLAGS },
381  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, FLAGS },
382  { NULL },
383 };
384 
385 static const AVFilterPad inputs[] = {
386  {
387  .name = "default",
388  .type = AVMEDIA_TYPE_VIDEO,
389  .filter_frame = filter_frame,
390  },
391  { NULL }
392 };
393 
394 static const AVFilterPad outputs[] = {
395  {
396  .name = "default",
397  .type = AVMEDIA_TYPE_VIDEO,
398  .config_props = config_output,
399  },
400  { NULL }
401 };
402 
403 AVFILTER_DEFINE_CLASS(deblock);
404 
405 AVFilter ff_vf_deblock = {
406  .name = "deblock",
407  .description = NULL_IF_CONFIG_SMALL("Deblock video."),
408  .priv_size = sizeof(DeblockContext),
409  .priv_class = &deblock_class,
410  .query_formats = query_formats,
411  .inputs = inputs,
412  .outputs = outputs,
413  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
414 };
formats
formats
Definition: signature.h:48
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:99
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:430
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:409
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
DeblockContext::depth
int depth
Definition: vf_deblock.c:52
out
FILE * out
Definition: movenc.c:54
DeblockContext::max
int max
Definition: vf_deblock.c:51
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
FilterType
FilterType
Definition: af_anequalizer.c:33
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:422
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:429
outputs
static const AVFilterPad outputs[]
Definition: vf_deblock.c:394
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:424
AVOption
AVOption.
Definition: opt.h:246
DeblockContext::planes
int planes
Definition: vf_deblock.c:41
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:387
inputs
static const AVFilterPad inputs[]
Definition: vf_deblock.c:385
DeblockContext::block
int block
Definition: vf_deblock.c:40
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
filter
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
Definition: filter_design.txt:228
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:148
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:425
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:367
av_image_copy_plane
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:338
DeblockContext::nb_planes
int nb_planes
Definition: vf_deblock.c:54
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
formats.h
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2562
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:421
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:405
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
DeblockContext::bpc
int bpc
Definition: vf_deblock.c:53
DeblockContext::planewidth
int planewidth[4]
Definition: vf_deblock.c:55
deblock_options
static const AVOption deblock_options[]
Definition: vf_deblock.c:372
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:403
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:431
plane
int plane
Definition: avisynth_c.h:384
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:385
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:371
NB_FILTER
@ NB_FILTER
Definition: vf_deblock.c:34
src
#define src
Definition: vp8dsp.c:254
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_deblock.c:64
ff_vf_deblock
AVFilter ff_vf_deblock
Definition: vf_deblock.c:405
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:399
ff_set_common_formats
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:407
width
#define width
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:408
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:400
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:384
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:398
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:370
STRONG_VFILTER
#define STRONG_VFILTER(name, type, ldiv)
Definition: vf_deblock.c:218
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:368
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:406
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
NULL
#define NULL
Definition: coverity.c:32
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654
STRONG_HFILTER
#define STRONG_HFILTER(name, type, ldiv)
Definition: vf_deblock.c:172
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_deblock.c:266
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
DeblockContext::filter
int filter
Definition: vf_deblock.c:39
DeblockContext::deblockh
void(* deblockh)(uint8_t *dst, ptrdiff_t dst_linesize, int block, int ath, int bth, int gth, int dth, int max)
Definition: vf_deblock.c:58
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:388
WEAK
@ WEAK
Definition: vf_deblock.c:34
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:402
DeblockContext::beta
float beta
Definition: vf_deblock.c:43
DeblockContext
Definition: vf_deblock.c:36
planes
static const struct @314 planes[]
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:188
DeblockContext::bth
int bth
Definition: vf_deblock.c:48
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(deblock)
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:392
WEAK_VFILTER
#define WEAK_VFILTER(name, type, ldiv)
Definition: vf_deblock.c:131
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:394
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:594
height
#define height
FFMIN
#define FFMIN(a, b)
Definition: common.h:96
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:426
STRONG
@ STRONG
Definition: vf_deblock.c:34
internal.h
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:226
in
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Definition: audio_convert.c:326
OFFSET
#define OFFSET(x)
Definition: vf_deblock.c:369
DeblockContext::ath
int ath
Definition: vf_deblock.c:47
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:404
DeblockContext::deblockv
void(* deblockv)(uint8_t *dst, ptrdiff_t dst_linesize, int block, int ath, int bth, int gth, int dth, int max)
Definition: vf_deblock.c:60
delta
float delta
Definition: vorbis_enc_data.h:457
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
uint8_t
uint8_t
Definition: audio_convert.c:194
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:386
DeblockContext::dth
int dth
Definition: vf_deblock.c:50
AVFilter
Filter definition.
Definition: avfilter.h:144
DeblockContext::gth
int gth
Definition: vf_deblock.c:49
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:423
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:391
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:396
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:223
avfilter.h
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_deblock.c:308
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:338
DeblockContext::planeheight
int planeheight[4]
Definition: vf_deblock.c:56
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
DeblockContext::gamma
float gamma
Definition: vf_deblock.c:44
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
WEAK_HFILTER
#define WEAK_HFILTER(name, type, ldiv)
Definition: vf_deblock.c:92
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
alpha
static const int16_t alpha[]
Definition: ilbcdata.h:55
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
DeblockContext::delta
float delta
Definition: vf_deblock.c:45
FLAGS
#define FLAGS
Definition: vf_deblock.c:370
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:565
AVERROR_BUG
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
DeblockContext::desc
const AVPixFmtDescriptor * desc
Definition: vf_deblock.c:38
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:393
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:397
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:369
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:232
DeblockContext::alpha
float alpha
Definition: vf_deblock.c:42
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:395
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