FFmpeg
vf_guided.c
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1 /*
2  * Copyright (c) 2021 Xuewei Meng
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 #include "libavutil/imgutils.h"
22 #include "libavutil/opt.h"
23 #include "libavutil/pixdesc.h"
24 #include "avfilter.h"
25 #include "filters.h"
26 #include "formats.h"
27 #include "framesync.h"
28 #include "internal.h"
29 #include "video.h"
30 
35 };
36 
38  OFF,
39  ON,
41 };
42 
43 typedef struct GuidedContext {
44  const AVClass *class;
46 
47  int radius;
48  float eps;
49  int mode;
50  int sub;
51  int guidance;
52  int planes;
53 
54  int width;
55  int height;
56 
57  int nb_planes;
58  int depth;
59  int planewidth[4];
60  int planeheight[4];
61 
62  int (*box_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
64 
65 #define OFFSET(x) offsetof(GuidedContext, x)
66 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
67 
68 static const AVOption guided_options[] = {
69  { "radius", "set the box radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64 = 3 }, 1, 20, FLAGS },
70  { "eps", "set the regularization parameter (with square)", OFFSET(eps), AV_OPT_TYPE_FLOAT, {.dbl = 0.01 }, 0.0, 1, FLAGS },
71  { "mode", "set filtering mode (0: basic mode; 1: fast mode)", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = BASIC}, BASIC, NB_MODES - 1, FLAGS, "mode" },
72  { "basic", "basic guided filter", 0, AV_OPT_TYPE_CONST, {.i64 = BASIC}, 0, 0, FLAGS, "mode" },
73  { "fast", "fast guided filter", 0, AV_OPT_TYPE_CONST, {.i64 = FAST }, 0, 0, FLAGS, "mode" },
74  { "sub", "subsampling ratio for fast mode", OFFSET(sub), AV_OPT_TYPE_INT, {.i64 = 4 }, 2, 64, FLAGS },
75  { "guidance", "set guidance mode (0: off mode; 1: on mode)", OFFSET(guidance), AV_OPT_TYPE_INT, {.i64 = OFF }, OFF, NB_GUIDANCE_MODES - 1, FLAGS, "guidance" },
76  { "off", "only one input is enabled", 0, AV_OPT_TYPE_CONST, {.i64 = OFF }, 0, 0, FLAGS, "guidance" },
77  { "on", "two inputs are required", 0, AV_OPT_TYPE_CONST, {.i64 = ON }, 0, 0, FLAGS, "guidance" },
78  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64 = 1 }, 0, 0xF, FLAGS },
79  { NULL }
80 };
81 
82 AVFILTER_DEFINE_CLASS(guided);
83 
84 typedef struct ThreadData {
85  int width;
86  int height;
87  float *src;
88  float *dst;
89  int srcStride;
90  int dstStride;
91 } ThreadData;
92 
93 static int box_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
94 {
95  GuidedContext *s = ctx->priv;
96  ThreadData *t = arg;
97 
98  const int width = t->width;
99  const int height = t->height;
100  const int src_stride = t->srcStride;
101  const int dst_stride = t->dstStride;
102  const int slice_start = (height * jobnr) / nb_jobs;
103  const int slice_end = (height * (jobnr + 1)) / nb_jobs;
104  const int radius = s->radius;
105  const float *src = t->src;
106  float *dst = t->dst;
107 
108  int w;
109  int numPix;
110  w = (radius << 1) + 1;
111  numPix = w * w;
112  for (int i = slice_start;i < slice_end;i++) {
113  for (int j = 0;j < width;j++) {
114  float temp = 0.0;
115  for (int row = -radius;row <= radius;row++) {
116  for (int col = -radius;col <= radius;col++) {
117  int x = i + row;
118  int y = j + col;
119  x = (x < 0) ? 0 : (x >= height ? height - 1 : x);
120  y = (y < 0) ? 0 : (y >= width ? width - 1 : y);
121  temp += src[x * src_stride + y];
122  }
123  }
124  dst[i * dst_stride + j] = temp / numPix;
125  }
126  }
127  return 0;
128 }
129 
130 static const enum AVPixelFormat pix_fmts[] = {
149 };
150 
152 {
153  AVFilterContext *ctx = inlink->dst;
154  GuidedContext *s = ctx->priv;
156 
157  if (s->mode == BASIC) {
158  s->sub = 1;
159  } else if (s->mode == FAST) {
160  if (s->radius >= s->sub)
161  s->radius = s->radius / s->sub;
162  else {
163  s->radius = 1;
164  }
165  }
166 
167  s->depth = desc->comp[0].depth;
168  s->width = ctx->inputs[0]->w;
169  s->height = ctx->inputs[0]->h;
170 
171  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
172  s->planewidth[0] = s->planewidth[3] = inlink->w;
173  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
174  s->planeheight[0] = s->planeheight[3] = inlink->h;
175 
176  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
177  s->box_slice = box_slice;
178  return 0;
179 }
180 
181 #define GUIDED(type, name) \
182 static int guided_##name(AVFilterContext *ctx, GuidedContext *s, \
183  const uint8_t *ssrc, const uint8_t *ssrcRef, \
184  uint8_t *ddst, int radius, float eps, int width, int height, \
185  int src_stride, int src_ref_stride, int dst_stride, \
186  float maxval) \
187 { \
188  int ret = 0; \
189  type *dst = (type *)ddst; \
190  const type *src = (const type *)ssrc; \
191  const type *srcRef = (const type *)ssrcRef; \
192  \
193  int sub = s->sub; \
194  int h = (height % sub) == 0 ? height / sub : height / sub + 1; \
195  int w = (width % sub) == 0 ? width / sub : width / sub + 1; \
196  \
197  ThreadData t; \
198  const int nb_threads = ff_filter_get_nb_threads(ctx); \
199  float *I; \
200  float *II; \
201  float *P; \
202  float *IP; \
203  float *meanI; \
204  float *meanII; \
205  float *meanP; \
206  float *meanIP; \
207  float *A; \
208  float *B; \
209  float *meanA; \
210  float *meanB; \
211  \
212  I = av_calloc(w * h, sizeof(float)); \
213  II = av_calloc(w * h, sizeof(float)); \
214  P = av_calloc(w * h, sizeof(float)); \
215  IP = av_calloc(w * h, sizeof(float)); \
216  meanI = av_calloc(w * h, sizeof(float)); \
217  meanII = av_calloc(w * h, sizeof(float)); \
218  meanP = av_calloc(w * h, sizeof(float)); \
219  meanIP = av_calloc(w * h, sizeof(float)); \
220  \
221  A = av_calloc(w * h, sizeof(float)); \
222  B = av_calloc(w * h, sizeof(float)); \
223  meanA = av_calloc(w * h, sizeof(float)); \
224  meanB = av_calloc(w * h, sizeof(float)); \
225  \
226  if (!I || !II || !P || !IP || !meanI || !meanII || !meanP || \
227  !meanIP || !A || !B || !meanA || !meanB) { \
228  ret = AVERROR(ENOMEM); \
229  goto end; \
230  } \
231  for (int i = 0;i < h;i++) { \
232  for (int j = 0;j < w;j++) { \
233  int x = i * w + j; \
234  I[x] = src[(i * src_stride + j) * sub] / maxval; \
235  II[x] = I[x] * I[x]; \
236  P[x] = srcRef[(i * src_ref_stride + j) * sub] / maxval; \
237  IP[x] = I[x] * P[x]; \
238  } \
239  } \
240  \
241  t.width = w; \
242  t.height = h; \
243  t.srcStride = w; \
244  t.dstStride = w; \
245  t.src = I; \
246  t.dst = meanI; \
247  ff_filter_execute(ctx, s->box_slice, &t, NULL, FFMIN(h, nb_threads)); \
248  t.src = II; \
249  t.dst = meanII; \
250  ff_filter_execute(ctx, s->box_slice, &t, NULL, FFMIN(h, nb_threads)); \
251  t.src = P; \
252  t.dst = meanP; \
253  ff_filter_execute(ctx, s->box_slice, &t, NULL, FFMIN(h, nb_threads)); \
254  t.src = IP; \
255  t.dst = meanIP; \
256  ff_filter_execute(ctx, s->box_slice, &t, NULL, FFMIN(h, nb_threads)); \
257  \
258  for (int i = 0;i < h;i++) { \
259  for (int j = 0;j < w;j++) { \
260  int x = i * w + j; \
261  float varI = meanII[x] - (meanI[x] * meanI[x]); \
262  float covIP = meanIP[x] - (meanI[x] * meanP[x]); \
263  A[x] = covIP / (varI + eps); \
264  B[x] = meanP[x] - A[x] * meanI[x]; \
265  } \
266  } \
267  \
268  t.src = A; \
269  t.dst = meanA; \
270  ff_filter_execute(ctx, s->box_slice, &t, NULL, FFMIN(h, nb_threads)); \
271  t.src = B; \
272  t.dst = meanB; \
273  ff_filter_execute(ctx, s->box_slice, &t, NULL, FFMIN(h, nb_threads)); \
274  \
275  for (int i = 0;i < height;i++) { \
276  for (int j = 0;j < width;j++) { \
277  int x = i / sub * w + j / sub; \
278  dst[i * dst_stride + j] = meanA[x] * src[i * src_stride + j] + \
279  meanB[x] * maxval; \
280  } \
281  } \
282 end: \
283  av_freep(&I); \
284  av_freep(&II); \
285  av_freep(&P); \
286  av_freep(&IP); \
287  av_freep(&meanI); \
288  av_freep(&meanII); \
289  av_freep(&meanP); \
290  av_freep(&meanIP); \
291  av_freep(&A); \
292  av_freep(&B); \
293  av_freep(&meanA); \
294  av_freep(&meanB); \
295  return ret; \
296 }
297 
298 GUIDED(uint8_t, byte)
299 GUIDED(uint16_t, word)
300 
302 {
303  GuidedContext *s = ctx->priv;
304  AVFilterLink *outlink = ctx->outputs[0];
305  *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
306  if (!*out)
307  return AVERROR(ENOMEM);
308  av_frame_copy_props(*out, in);
309 
310  for (int plane = 0; plane < s->nb_planes; plane++) {
311  if (!(s->planes & (1 << plane))) {
312  av_image_copy_plane((*out)->data[plane], (*out)->linesize[plane],
313  in->data[plane], in->linesize[plane],
314  s->planewidth[plane] * ((s->depth + 7) / 8), s->planeheight[plane]);
315  continue;
316  }
317  if (s->depth <= 8)
318  guided_byte(ctx, s, in->data[plane], ref->data[plane], (*out)->data[plane], s->radius, s->eps,
319  s->planewidth[plane], s->planeheight[plane],
320  in->linesize[plane], ref->linesize[plane], (*out)->linesize[plane], (1 << s->depth) - 1.f);
321  else
322  guided_word(ctx, s, in->data[plane], ref->data[plane], (*out)->data[plane], s->radius, s->eps,
323  s->planewidth[plane], s->planeheight[plane],
324  in->linesize[plane] / 2, ref->linesize[plane] / 2, (*out)->linesize[plane] / 2, (1 << s->depth) - 1.f);
325  }
326 
327  return 0;
328 }
329 
331 {
332  AVFilterContext *ctx = fs->parent;
333  AVFilterLink *outlink = ctx->outputs[0];
334  AVFrame *out_frame = NULL, *main_frame = NULL, *ref_frame = NULL;
335  int ret;
336  ret = ff_framesync_dualinput_get(fs, &main_frame, &ref_frame);
337  if (ret < 0)
338  return ret;
339 
340  ret = filter_frame(ctx, &out_frame, main_frame, ref_frame);
341  if (ret < 0) {
342  return ret;
343  }
344  av_frame_free(&main_frame);
345 
346  return ff_filter_frame(outlink, out_frame);
347 }
348 
349 static int config_output(AVFilterLink *outlink)
350 {
351  AVFilterContext *ctx = outlink->src;
352 
353  GuidedContext *s = ctx->priv;
354  AVFilterLink *mainlink = ctx->inputs[0];
355  FFFrameSyncIn *in;
356  int ret;
357 
358  if (s->guidance == ON) {
359  if (ctx->inputs[0]->w != ctx->inputs[1]->w ||
360  ctx->inputs[0]->h != ctx->inputs[1]->h) {
361  av_log(ctx, AV_LOG_ERROR, "Width and height of input videos must be same.\n");
362  return AVERROR(EINVAL);
363  }
364  }
365 
366  outlink->w = mainlink->w;
367  outlink->h = mainlink->h;
368  outlink->time_base = mainlink->time_base;
369  outlink->sample_aspect_ratio = mainlink->sample_aspect_ratio;
370  outlink->frame_rate = mainlink->frame_rate;
371 
372  if (s->guidance == OFF)
373  return 0;
374 
375  if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0)
376  return ret;
377 
378  outlink->time_base = s->fs.time_base;
379 
380  in = s->fs.in;
381  in[0].time_base = mainlink->time_base;
382  in[1].time_base = ctx->inputs[1]->time_base;
383  in[0].sync = 2;
384  in[0].before = EXT_INFINITY;
385  in[0].after = EXT_INFINITY;
386  in[1].sync = 1;
387  in[1].before = EXT_INFINITY;
388  in[1].after = EXT_INFINITY;
389  s->fs.opaque = s;
390  s->fs.on_event = process_frame;
391 
392  return ff_framesync_configure(&s->fs);
393 }
394 
396 {
397  GuidedContext *s = ctx->priv;
398  AVFrame *frame = NULL;
399  AVFrame *out = NULL;
400  int ret, status;
401  int64_t pts;
402  if (s->guidance)
403  return ff_framesync_activate(&s->fs);
404 
405  FF_FILTER_FORWARD_STATUS_BACK(ctx->outputs[0], ctx->inputs[0]);
406 
407  if ((ret = ff_inlink_consume_frame(ctx->inputs[0], &frame)) > 0) {
410  if (ret < 0)
411  return ret;
412  ret = ff_filter_frame(ctx->outputs[0], out);
413  }
414  if (ret < 0)
415  return ret;
416  if (ff_inlink_acknowledge_status(ctx->inputs[0], &status, &pts)) {
417  ff_outlink_set_status(ctx->outputs[0], status, pts);
418  return 0;
419  }
420  if (ff_outlink_frame_wanted(ctx->outputs[0]))
421  ff_inlink_request_frame(ctx->inputs[0]);
422  return 0;
423 }
424 
426 {
427  GuidedContext *s = ctx->priv;
428  AVFilterPad pad = { 0 };
429  int ret;
430 
431  pad.type = AVMEDIA_TYPE_VIDEO;
432  pad.name = "source";
434 
435  if ((ret = ff_append_inpad(ctx, &pad)) < 0)
436  return ret;
437 
438  if (s->guidance == ON) {
439  pad.type = AVMEDIA_TYPE_VIDEO;
440  pad.name = "guidance";
441  pad.config_props = NULL;
442 
443  if ((ret = ff_append_inpad(ctx, &pad)) < 0)
444  return ret;
445  }
446 
447  return 0;
448 }
449 
451 {
452  GuidedContext *s = ctx->priv;
453  if (s->guidance == ON)
454  ff_framesync_uninit(&s->fs);
455  return;
456 }
457 
459  const char *cmd,
460  const char *arg,
461  char *res,
462  int res_len,
463  int flags)
464 {
465  int ret = ff_filter_process_command(ctx, cmd, arg, res, res_len, flags);
466 
467  if (ret < 0)
468  return ret;
469 
470  return 0;
471 }
472 
473 static const AVFilterPad guided_outputs[] = {
474  {
475  .name = "default",
476  .type = AVMEDIA_TYPE_VIDEO,
477  .config_props = config_output,
478  },
479 };
480 
482  .name = "guided",
483  .description = NULL_IF_CONFIG_SMALL("Apply Guided filter."),
484  .init = init,
485  .uninit = uninit,
486  .priv_size = sizeof(GuidedContext),
487  .priv_class = &guided_class,
488  .activate = activate,
489  .inputs = NULL,
494  .process_command = process_command,
495 };
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:98
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:434
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:413
FFFrameSyncIn::time_base
AVRational time_base
Time base for the incoming frames.
Definition: framesync.h:96
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:119
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
status
they must not be accessed directly The fifo field contains the frames that are queued in the input for processing by the filter The status_in and status_out fields contains the queued status(EOF or error) of the link
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_guided.c:151
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
ThreadData::dstStride
int dstStride
Definition: vf_guided.c:90
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:285
out
FILE * out
Definition: movenc.c:54
filter_frame
static int filter_frame(AVFilterContext *ctx, AVFrame **out, AVFrame *in, AVFrame *ref)
Definition: vf_guided.c:301
sub
static float sub(float src0, float src1)
Definition: dnn_backend_native_layer_mathbinary.c:31
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1018
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2564
GuidedContext::depth
int depth
Definition: vf_guided.c:58
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:171
activate
static int activate(AVFilterContext *ctx)
Definition: vf_guided.c:395
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
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:112
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:426
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
pixdesc.h
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(guided)
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:433
w
uint8_t w
Definition: llviddspenc.c:38
GUIDED
#define GUIDED(type, name)
Definition: vf_guided.c:181
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:428
AVOption
AVOption.
Definition: opt.h:247
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:391
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
guided_outputs
static const AVFilterPad guided_outputs[]
Definition: vf_guided.c:473
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:153
FFFrameSync
Frame sync structure.
Definition: framesync.h:146
EXT_INFINITY
@ EXT_INFINITY
Extend the frame to infinity.
Definition: framesync.h:75
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:429
FF_FILTER_FORWARD_STATUS_BACK
#define FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink)
Forward the status on an output link to an input link.
Definition: filters.h:199
ThreadData::width
int width
Definition: vf_avgblur.c:65
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:371
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:374
planes
static const struct @320 planes[]
formats.h
ff_inlink_consume_frame
int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
Take a frame from the link's FIFO and update the link's stats.
Definition: avfilter.c:1417
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2604
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:425
guided_options
static const AVOption guided_options[]
Definition: vf_guided.c:68
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:409
ff_append_inpad
int ff_append_inpad(AVFilterContext *f, AVFilterPad *p)
Append a new input/output pad to the filter's list of such pads.
Definition: avfilter.c:139
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
GuidedContext::nb_planes
int nb_planes
Definition: vf_guided.c:57
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:407
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:435
FFFrameSyncIn
Input stream structure.
Definition: framesync.h:81
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:389
pts
static int64_t pts
Definition: transcode_aac.c:653
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:375
FFFrameSyncIn::sync
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events.
Definition: framesync.h:139
AVFILTER_FLAG_DYNAMIC_INPUTS
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
Definition: avfilter.h:110
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:50
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:394
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:248
ff_vf_guided
const AVFilter ff_vf_guided
Definition: vf_guided.c:481
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:243
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:403
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:411
ff_outlink_set_status
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
Definition: filters.h:189
ff_inlink_request_frame
void ff_inlink_request_frame(AVFilterLink *link)
Mark that a frame is wanted on the link.
Definition: avfilter.c:1534
width
#define width
OFFSET
#define OFFSET(x)
Definition: vf_guided.c:65
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:412
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:404
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
ThreadData::height
int height
Definition: vf_avgblur.c:64
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2041
filters.h
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:388
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:402
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:374
GuidedContext::planewidth
int planewidth[4]
Definition: vf_guided.c:59
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
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:372
ThreadData::dst
AVFrame * dst
Definition: vf_blend.c:83
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:410
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
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:537
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:259
ThreadData::src
const uint8_t * src
Definition: vf_bm3d.c:55
BASIC
@ BASIC
Definition: vf_guided.c:32
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
src
#define src
Definition: vp8dsp.c:255
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:392
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:406
box_slice
static int box_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_guided.c:93
ff_inlink_acknowledge_status
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
Definition: avfilter.c:1371
GuidedContext::height
int height
Definition: vf_guided.c:55
AVFilterPad::config_props
int(* config_props)(AVFilterLink *link)
Link configuration callback.
Definition: internal.h:130
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:117
ON
@ ON
Definition: vf_guided.c:39
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:396
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:398
OFF
@ OFF
Definition: vf_guided.c:38
ff_filter_process_command
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
Definition: avfilter.c:882
NB_MODES
@ NB_MODES
Definition: vf_guided.c:34
height
#define height
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:167
GuidedContext::width
int width
Definition: vf_guided.c:54
GuidedContext::mode
int mode
Definition: vf_guided.c:49
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_guided.c:425
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:430
FLAGS
#define FLAGS
Definition: vf_guided.c:66
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:130
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:227
GuidedContext::eps
float eps
Definition: vf_guided.c:48
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:271
FAST
@ FAST
Definition: vf_guided.c:33
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:408
ThreadData
Used for passing data between threads.
Definition: dsddec.c:67
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
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:56
GuidedContext
Definition: vf_guided.c:43
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:390
ThreadData::srcStride
int srcStride
Definition: vf_guided.c:89
AVFilter
Filter definition.
Definition: avfilter.h:149
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_guided.c:130
GuidedContext::sub
int sub
Definition: vf_guided.c:50
ret
ret
Definition: filter_design.txt:187
AVFilterPad::type
enum AVMediaType type
AVFilterPad type.
Definition: internal.h:61
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:427
ff_framesync_init
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:79
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:395
GuidedContext::radius
int radius
Definition: vf_guided.c:47
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:400
FFFrameSyncIn::before
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
Definition: framesync.h:86
GuidedContext::planeheight
int planeheight[4]
Definition: vf_guided.c:60
GuidedContext::box_slice
int(* box_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_guided.c:62
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Definition: vf_guided.c:458
framesync.h
mode
mode
Definition: ebur128.h:83
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
GuidedContext::fs
FFFrameSync fs
Definition: vf_guided.c:45
avfilter.h
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_guided.c:450
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
temp
else temp
Definition: vf_mcdeint.c:248
GuidanceModes
GuidanceModes
Definition: vf_guided.c:37
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:386
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
GuidedContext::planes
int planes
Definition: vf_guided.c:52
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:121
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
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
GuidedContext::guidance
int guidance
Definition: vf_guided.c:51
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
NB_GUIDANCE_MODES
@ NB_GUIDANCE_MODES
Definition: vf_guided.c:40
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:192
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
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_guided.c:349
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
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
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
FFFrameSyncIn::after
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
Definition: framesync.h:91
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:397
ff_outlink_frame_wanted
the definition of that something depends on the semantic of the filter The callback must examine the status of the filter s links and proceed accordingly The status of output links is stored in the status_in and status_out fields and tested by the ff_outlink_frame_wanted() function. If this function returns true
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:401
ff_framesync_activate
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
Definition: framesync.c:336
ff_framesync_dualinput_get
int ff_framesync_dualinput_get(FFFrameSync *fs, AVFrame **f0, AVFrame **f1)
Definition: framesync.c:371
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:373
int
int
Definition: ffmpeg_filter.c:156
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:233
process_frame
static int process_frame(FFFrameSync *fs)
Definition: vf_guided.c:330
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:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:399
FilterModes
FilterModes
Definition: vf_bm3d.c:48