FFmpeg
vf_blend.c
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1 /*
2  * Copyright (c) 2013 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 #include "config_components.h"
22 
23 #include "libavutil/eval.h"
24 #include "libavutil/mem.h"
25 #include "libavutil/opt.h"
26 #include "libavutil/pixfmt.h"
27 #include "avfilter.h"
28 #include "framesync.h"
29 #include "internal.h"
30 #include "vf_blend_init.h"
31 #include "video.h"
32 #include "blend.h"
33 
34 #define TOP 0
35 #define BOTTOM 1
36 
37 typedef struct BlendContext {
38  const AVClass *class;
40  int hsub, vsub; ///< chroma subsampling values
41  int nb_planes;
42  char *all_expr;
44  double all_opacity;
45 
46  int depth;
48  int tblend;
49  AVFrame *prev_frame; /* only used with tblend */
51 } BlendContext;
52 
53 static const char *const var_names[] = { "X", "Y", "W", "H", "SW", "SH", "T", "N", "A", "B", "TOP", "BOTTOM", NULL };
55 
56 typedef struct ThreadData {
57  const AVFrame *top, *bottom;
60  int plane;
61  int w, h;
63 } ThreadData;
64 
65 #define OFFSET(x) offsetof(BlendContext, x)
66 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
67 
68 static const AVOption blend_options[] = {
69  { "c0_mode", "set component #0 blend mode", OFFSET(params[0].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, .unit = "mode" },
70  { "c1_mode", "set component #1 blend mode", OFFSET(params[1].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, .unit = "mode" },
71  { "c2_mode", "set component #2 blend mode", OFFSET(params[2].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, .unit = "mode" },
72  { "c3_mode", "set component #3 blend mode", OFFSET(params[3].mode), AV_OPT_TYPE_INT, {.i64=0}, 0, BLEND_NB-1, FLAGS, .unit = "mode" },
73  { "all_mode", "set blend mode for all components", OFFSET(all_mode), AV_OPT_TYPE_INT, {.i64=-1},-1, BLEND_NB-1, FLAGS, .unit = "mode" },
74  { "addition", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_ADDITION}, 0, 0, FLAGS, .unit = "mode" },
75  { "addition128","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINMERGE}, 0, 0, FLAGS, .unit = "mode" },
76  { "grainmerge", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINMERGE}, 0, 0, FLAGS, .unit = "mode" },
77  { "and", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AND}, 0, 0, FLAGS, .unit = "mode" },
78  { "average", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AVERAGE}, 0, 0, FLAGS, .unit = "mode" },
79  { "burn", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_BURN}, 0, 0, FLAGS, .unit = "mode" },
80  { "darken", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DARKEN}, 0, 0, FLAGS, .unit = "mode" },
81  { "difference", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIFFERENCE}, 0, 0, FLAGS, .unit = "mode" },
82  { "difference128", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINEXTRACT}, 0, 0, FLAGS, .unit = "mode" },
83  { "grainextract", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GRAINEXTRACT}, 0, 0, FLAGS, .unit = "mode" },
84  { "divide", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DIVIDE}, 0, 0, FLAGS, .unit = "mode" },
85  { "dodge", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_DODGE}, 0, 0, FLAGS, .unit = "mode" },
86  { "exclusion", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_EXCLUSION}, 0, 0, FLAGS, .unit = "mode" },
87  { "extremity", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_EXTREMITY}, 0, 0, FLAGS, .unit = "mode" },
88  { "freeze", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_FREEZE}, 0, 0, FLAGS, .unit = "mode" },
89  { "glow", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GLOW}, 0, 0, FLAGS, .unit = "mode" },
90  { "hardlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDLIGHT}, 0, 0, FLAGS, .unit = "mode" },
91  { "hardmix", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDMIX}, 0, 0, FLAGS, .unit = "mode" },
92  { "heat", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HEAT}, 0, 0, FLAGS, .unit = "mode" },
93  { "lighten", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_LIGHTEN}, 0, 0, FLAGS, .unit = "mode" },
94  { "linearlight","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_LINEARLIGHT},0, 0, FLAGS, .unit = "mode" },
95  { "multiply", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_MULTIPLY}, 0, 0, FLAGS, .unit = "mode" },
96  { "multiply128","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_MULTIPLY128},0, 0, FLAGS, .unit = "mode" },
97  { "negation", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_NEGATION}, 0, 0, FLAGS, .unit = "mode" },
98  { "normal", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_NORMAL}, 0, 0, FLAGS, .unit = "mode" },
99  { "or", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_OR}, 0, 0, FLAGS, .unit = "mode" },
100  { "overlay", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_OVERLAY}, 0, 0, FLAGS, .unit = "mode" },
101  { "phoenix", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_PHOENIX}, 0, 0, FLAGS, .unit = "mode" },
102  { "pinlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_PINLIGHT}, 0, 0, FLAGS, .unit = "mode" },
103  { "reflect", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_REFLECT}, 0, 0, FLAGS, .unit = "mode" },
104  { "screen", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SCREEN}, 0, 0, FLAGS, .unit = "mode" },
105  { "softlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SOFTLIGHT}, 0, 0, FLAGS, .unit = "mode" },
106  { "subtract", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SUBTRACT}, 0, 0, FLAGS, .unit = "mode" },
107  { "vividlight", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_VIVIDLIGHT}, 0, 0, FLAGS, .unit = "mode" },
108  { "xor", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_XOR}, 0, 0, FLAGS, .unit = "mode" },
109  { "softdifference","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_SOFTDIFFERENCE}, 0, 0, FLAGS, .unit = "mode" },
110  { "geometric", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_GEOMETRIC}, 0, 0, FLAGS, .unit = "mode" },
111  { "harmonic", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARMONIC}, 0, 0, FLAGS, .unit = "mode" },
112  { "bleach", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_BLEACH}, 0, 0, FLAGS, .unit = "mode" },
113  { "stain", "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_STAIN}, 0, 0, FLAGS, .unit = "mode" },
114  { "interpolate","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_INTERPOLATE},0, 0, FLAGS, .unit = "mode" },
115  { "hardoverlay","", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_HARDOVERLAY},0, 0, FLAGS, .unit = "mode" },
116  { "c0_expr", "set color component #0 expression", OFFSET(params[0].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
117  { "c1_expr", "set color component #1 expression", OFFSET(params[1].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
118  { "c2_expr", "set color component #2 expression", OFFSET(params[2].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
119  { "c3_expr", "set color component #3 expression", OFFSET(params[3].expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
120  { "all_expr", "set expression for all color components", OFFSET(all_expr), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
121  { "c0_opacity", "set color component #0 opacity", OFFSET(params[0].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
122  { "c1_opacity", "set color component #1 opacity", OFFSET(params[1].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
123  { "c2_opacity", "set color component #2 opacity", OFFSET(params[2].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
124  { "c3_opacity", "set color component #3 opacity", OFFSET(params[3].opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
125  { "all_opacity", "set opacity for all color components", OFFSET(all_opacity), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
126  { NULL }
127 };
128 
130 
131 #define DEFINE_BLEND_EXPR(type, name, div) \
132 static void blend_expr_## name(const uint8_t *_top, ptrdiff_t top_linesize, \
133  const uint8_t *_bottom, ptrdiff_t bottom_linesize, \
134  uint8_t *_dst, ptrdiff_t dst_linesize, \
135  ptrdiff_t width, ptrdiff_t height, \
136  FilterParams *param, SliceParams *sliceparam) \
137 { \
138  const type *top = (const type*)_top; \
139  const type *bottom = (const type*)_bottom; \
140  double *values = sliceparam->values; \
141  int starty = sliceparam->starty; \
142  type *dst = (type*)_dst; \
143  AVExpr *e = sliceparam->e; \
144  int y, x; \
145  dst_linesize /= div; \
146  top_linesize /= div; \
147  bottom_linesize /= div; \
148  \
149  for (y = 0; y < height; y++) { \
150  values[VAR_Y] = y + starty; \
151  for (x = 0; x < width; x++) { \
152  values[VAR_X] = x; \
153  values[VAR_TOP] = values[VAR_A] = top[x]; \
154  values[VAR_BOTTOM] = values[VAR_B] = bottom[x]; \
155  dst[x] = av_expr_eval(e, values, NULL); \
156  } \
157  dst += dst_linesize; \
158  top += top_linesize; \
159  bottom += bottom_linesize; \
160  } \
161 }
162 
163 DEFINE_BLEND_EXPR(uint8_t, 8bit, 1)
164 DEFINE_BLEND_EXPR(uint16_t, 16bit, 2)
165 DEFINE_BLEND_EXPR(float, 32bit, 4)
166 
167 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
168 {
169  ThreadData *td = arg;
170  int slice_start = (td->h * jobnr ) / nb_jobs;
171  int slice_end = (td->h * (jobnr+1)) / nb_jobs;
172  int height = slice_end - slice_start;
173  const uint8_t *top = td->top->data[td->plane];
174  const uint8_t *bottom = td->bottom->data[td->plane];
175  uint8_t *dst = td->dst->data[td->plane];
176  double values[VAR_VARS_NB];
177  SliceParams sliceparam = {.values = &values[0], .starty = slice_start, .e = td->param->e ? td->param->e[jobnr] : NULL};
178 
179  values[VAR_N] = td->inlink->frame_count_out;
180  values[VAR_T] = td->dst->pts == AV_NOPTS_VALUE ? NAN : td->dst->pts * av_q2d(td->inlink->time_base);
181  values[VAR_W] = td->w;
182  values[VAR_H] = td->h;
183  values[VAR_SW] = td->w / (double)td->dst->width;
184  values[VAR_SH] = td->h / (double)td->dst->height;
185 
186  td->param->blend(top + slice_start * td->top->linesize[td->plane],
187  td->top->linesize[td->plane],
188  bottom + slice_start * td->bottom->linesize[td->plane],
189  td->bottom->linesize[td->plane],
190  dst + slice_start * td->dst->linesize[td->plane],
191  td->dst->linesize[td->plane],
192  td->w, height, td->param, &sliceparam);
193  return 0;
194 }
195 
197  const AVFrame *bottom_buf)
198 {
199  BlendContext *s = ctx->priv;
200  AVFilterLink *inlink = ctx->inputs[0];
201  AVFilterLink *outlink = ctx->outputs[0];
202  AVFrame *dst_buf;
203  int plane;
204 
205  dst_buf = ff_get_video_buffer(outlink, outlink->w, outlink->h);
206  if (!dst_buf)
207  return top_buf;
208 
209  if (av_frame_copy_props(dst_buf, top_buf) < 0) {
210  av_frame_free(&dst_buf);
211  return top_buf;
212  }
213 
214  for (plane = 0; plane < s->nb_planes; plane++) {
215  int hsub = plane == 1 || plane == 2 ? s->hsub : 0;
216  int vsub = plane == 1 || plane == 2 ? s->vsub : 0;
217  int outw = AV_CEIL_RSHIFT(dst_buf->width, hsub);
218  int outh = AV_CEIL_RSHIFT(dst_buf->height, vsub);
219  FilterParams *param = &s->params[plane];
220  ThreadData td = { .top = top_buf, .bottom = bottom_buf, .dst = dst_buf,
221  .w = outw, .h = outh, .param = param, .plane = plane,
222  .inlink = inlink };
223 
225  FFMIN(outh, s->nb_threads));
226  }
227 
228  if (!s->tblend)
229  av_frame_free(&top_buf);
230 
231  return dst_buf;
232 }
233 
235 {
236  AVFilterContext *ctx = fs->parent;
237  AVFrame *top_buf, *bottom_buf, *dst_buf;
238  int ret;
239 
240  ret = ff_framesync_dualinput_get(fs, &top_buf, &bottom_buf);
241  if (ret < 0)
242  return ret;
243  if (!bottom_buf)
244  return ff_filter_frame(ctx->outputs[0], top_buf);
245  dst_buf = blend_frame(ctx, top_buf, bottom_buf);
246  return ff_filter_frame(ctx->outputs[0], dst_buf);
247 }
248 
250 {
251  BlendContext *s = ctx->priv;
252 
253  s->tblend = !strcmp(ctx->filter->name, "tblend");
254  s->nb_threads = ff_filter_get_nb_threads(ctx);
255 
256  s->fs.on_event = blend_frame_for_dualinput;
257  return 0;
258 }
259 
260 static const enum AVPixelFormat pix_fmts[] = {
279 };
280 
282 {
283  BlendContext *s = ctx->priv;
284  int i;
285 
286  ff_framesync_uninit(&s->fs);
287  av_frame_free(&s->prev_frame);
288 
289  for (i = 0; i < FF_ARRAY_ELEMS(s->params); i++) {
290  if (s->params[i].e) {
291  for (int j = 0; j < s->nb_threads; j++)
292  av_expr_free(s->params[i].e[j]);
293  av_freep(&s->params[i].e);
294  }
295  }
296 
297 }
298 
300 {
301  BlendContext *s = ctx->priv;
302  int ret;
303 
304  for (int plane = 0; plane < FF_ARRAY_ELEMS(s->params); plane++) {
305  FilterParams *param = &s->params[plane];
306 
307  if (s->all_mode >= 0)
308  param->mode = s->all_mode;
309  if (s->all_opacity < 1)
310  param->opacity = s->all_opacity;
311 
312  ff_blend_init(param, s->depth);
313 
314  if (s->all_expr && !param->expr_str) {
315  param->expr_str = av_strdup(s->all_expr);
316  if (!param->expr_str)
317  return AVERROR(ENOMEM);
318  }
319  if (param->expr_str) {
320  if (!param->e) {
321  param->e = av_calloc(s->nb_threads, sizeof(*param->e));
322  if (!param->e)
323  return AVERROR(ENOMEM);
324  }
325  for (int i = 0; i < s->nb_threads; i++) {
326  av_expr_free(param->e[i]);
327  param->e[i] = NULL;
328  ret = av_expr_parse(&param->e[i], param->expr_str, var_names,
329  NULL, NULL, NULL, NULL, 0, ctx);
330  if (ret < 0)
331  return ret;
332  }
333  param->blend = s->depth > 8 ? s->depth > 16 ? blend_expr_32bit : blend_expr_16bit : blend_expr_8bit;
334  }
335  }
336 
337  return 0;
338 }
339 
340 static int config_output(AVFilterLink *outlink)
341 {
342  AVFilterContext *ctx = outlink->src;
343  AVFilterLink *toplink = ctx->inputs[TOP];
344  BlendContext *s = ctx->priv;
345  const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(toplink->format);
346  int ret;
347 
348  if (!s->tblend) {
349  AVFilterLink *bottomlink = ctx->inputs[BOTTOM];
350 
351  if (toplink->w != bottomlink->w || toplink->h != bottomlink->h) {
352  av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
353  "(size %dx%d) do not match the corresponding "
354  "second input link %s parameters (size %dx%d)\n",
355  ctx->input_pads[TOP].name, toplink->w, toplink->h,
356  ctx->input_pads[BOTTOM].name, bottomlink->w, bottomlink->h);
357  return AVERROR(EINVAL);
358  }
359  }
360 
361  outlink->w = toplink->w;
362  outlink->h = toplink->h;
363  outlink->time_base = toplink->time_base;
364  outlink->sample_aspect_ratio = toplink->sample_aspect_ratio;
365  outlink->frame_rate = toplink->frame_rate;
366 
367  s->hsub = pix_desc->log2_chroma_w;
368  s->vsub = pix_desc->log2_chroma_h;
369 
370  s->depth = pix_desc->comp[0].depth;
371  s->nb_planes = av_pix_fmt_count_planes(toplink->format);
372 
373  if (!s->tblend)
374  if ((ret = ff_framesync_init_dualinput(&s->fs, ctx)) < 0)
375  return ret;
376 
377  ret = config_params(ctx);
378  if (ret < 0)
379  return ret;
380 
381  if (s->tblend)
382  return 0;
383 
384  ret = ff_framesync_configure(&s->fs);
385  outlink->time_base = s->fs.time_base;
386 
387  return ret;
388 }
389 
390 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
391  char *res, int res_len, int flags)
392 {
393  int ret;
394 
395  ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
396  if (ret < 0)
397  return ret;
398 
399  return config_params(ctx);
400 }
401 
402 static const AVFilterPad blend_outputs[] = {
403  {
404  .name = "default",
405  .type = AVMEDIA_TYPE_VIDEO,
406  .config_props = config_output,
407  },
408 };
409 
410 #if CONFIG_BLEND_FILTER
411 
412 static int activate(AVFilterContext *ctx)
413 {
414  BlendContext *s = ctx->priv;
415  return ff_framesync_activate(&s->fs);
416 }
417 
418 static const AVFilterPad blend_inputs[] = {
419  {
420  .name = "top",
421  .type = AVMEDIA_TYPE_VIDEO,
422  },{
423  .name = "bottom",
424  .type = AVMEDIA_TYPE_VIDEO,
425  },
426 };
427 
428 const AVFilter ff_vf_blend = {
429  .name = "blend",
430  .description = NULL_IF_CONFIG_SMALL("Blend two video frames into each other."),
431  .preinit = blend_framesync_preinit,
432  .init = init,
433  .uninit = uninit,
434  .priv_size = sizeof(BlendContext),
435  .activate = activate,
436  FILTER_INPUTS(blend_inputs),
439  .priv_class = &blend_class,
441  .process_command = process_command,
442 };
443 
444 #endif
445 
446 #if CONFIG_TBLEND_FILTER
447 
448 static int tblend_filter_frame(AVFilterLink *inlink, AVFrame *frame)
449 {
450  AVFilterContext *ctx = inlink->dst;
451  BlendContext *s = ctx->priv;
452  AVFilterLink *outlink = ctx->outputs[0];
453 
454  if (s->prev_frame) {
455  AVFrame *out;
456 
457  if (ctx->is_disabled)
459  else
460  out = blend_frame(ctx, frame, s->prev_frame);
461  av_frame_free(&s->prev_frame);
462  s->prev_frame = frame;
463  return ff_filter_frame(outlink, out);
464  }
465  s->prev_frame = frame;
466  return 0;
467 }
468 
469 AVFILTER_DEFINE_CLASS_EXT(tblend, "tblend", blend_options);
470 
471 static const AVFilterPad tblend_inputs[] = {
472  {
473  .name = "default",
474  .type = AVMEDIA_TYPE_VIDEO,
475  .filter_frame = tblend_filter_frame,
476  },
477 };
478 
479 const AVFilter ff_vf_tblend = {
480  .name = "tblend",
481  .description = NULL_IF_CONFIG_SMALL("Blend successive frames."),
482  .priv_size = sizeof(BlendContext),
483  .priv_class = &tblend_class,
484  .init = init,
485  .uninit = uninit,
486  FILTER_INPUTS(tblend_inputs),
490  .process_command = process_command,
491 };
492 
493 #endif
BLEND_GLOW
@ BLEND_GLOW
Definition: blend.h:56
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:112
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:522
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:501
BlendContext::vsub
int vsub
chroma subsampling values
Definition: vf_blend.c:40
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:137
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
BLEND_EXCLUSION
@ BLEND_EXCLUSION
Definition: blend.h:39
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
SliceParams::values
double * values
Definition: blend.h:73
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:307
out
FILE * out
Definition: movenc.c:55
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1015
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2965
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:162
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
FilterParams::expr_str
char * expr_str
Definition: blend.h:82
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:160
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:514
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:374
AVFrame::width
int width
Definition: frame.h:446
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:521
AVComponentDescriptor::depth
int depth
Number of bits in the component.
Definition: pixdesc.h:57
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:516
AVOption
AVOption.
Definition: opt.h:357
ThreadData::bottom
const AVFrame * bottom
Definition: vf_blend.c:57
OFFSET
#define OFFSET(x)
Definition: vf_blend.c:65
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:478
BLEND_NEGATION
@ BLEND_NEGATION
Definition: blend.h:43
VAR_B
@ VAR_B
Definition: vf_blend.c:54
ThreadData::w
int w
Definition: vf_blend.c:61
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
var_names
static const char *const var_names[]
Definition: vf_blend.c:53
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
AVFILTER_DEFINE_CLASS_EXT
#define AVFILTER_DEFINE_CLASS_EXT(name, desc, options)
Definition: internal.h:315
FFFrameSync
Frame sync structure.
Definition: framesync.h:168
BLEND_HARMONIC
@ BLEND_HARMONIC
Definition: blend.h:64
video.h
BLEND_ADDITION
@ BLEND_ADDITION
Definition: blend.h:30
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:517
VAR_T
@ VAR_T
Definition: vf_blend.c:54
BLEND_MULTIPLY128
@ BLEND_MULTIPLY128
Definition: blend.h:58
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:458
BLEND_GEOMETRIC
@ BLEND_GEOMETRIC
Definition: blend.h:63
BLEND_BLEACH
@ BLEND_BLEACH
Definition: blend.h:65
hsub
static void hsub(htype *dst, const htype *src, int bins)
Definition: vf_median.c:74
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_blend.c:390
BLEND_NB
@ BLEND_NB
Definition: blend.h:69
av_expr_parse
int av_expr_parse(AVExpr **expr, const char *s, const char *const *const_names, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), int log_offset, void *log_ctx)
Parse an expression.
Definition: eval.c:710
VAR_Y
@ VAR_Y
Definition: vf_blend.c:54
bit
#define bit(string, value)
Definition: cbs_mpeg2.c:56
BLEND_DIVIDE
@ BLEND_DIVIDE
Definition: blend.h:37
BLEND_PHOENIX
@ BLEND_PHOENIX
Definition: blend.h:46
FilterParams::e
AVExpr ** e
Definition: blend.h:81
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3005
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:513
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:496
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
VAR_TOP
@ VAR_TOP
Definition: vf_blend.c:54
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:494
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:523
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:476
config_params
static int config_params(AVFilterContext *ctx)
Definition: vf_blend.c:299
vf_blend_init.h
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:462
BLEND_AND
@ BLEND_AND
Definition: blend.h:31
BlendContext::params
FilterParams params[4]
Definition: vf_blend.c:47
av_expr_free
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:358
VAR_W
@ VAR_W
Definition: vf_blend.c:54
DEFINE_BLEND_EXPR
#define DEFINE_BLEND_EXPR(type, name, div)
Definition: vf_blend.c:131
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_blend.c:260
blend_options
static const AVOption blend_options[]
Definition: vf_blend.c:68
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
BLEND_SOFTLIGHT
@ BLEND_SOFTLIGHT
Definition: blend.h:50
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:481
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:283
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:490
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:86
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:498
ThreadData::plane
int plane
Definition: vf_blend.c:60
filter_slice
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_blend.c:167
s
#define s(width, name)
Definition: cbs_vp9.c:198
BLEND_OR
@ BLEND_OR
Definition: blend.h:44
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:499
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:108
BLEND_SCREEN
@ BLEND_SCREEN
Definition: blend.h:49
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:491
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:59
VAR_SW
@ VAR_SW
Definition: vf_blend.c:54
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:247
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:1730
av_q2d
static double av_q2d(AVRational a)
Convert an AVRational to a double.
Definition: rational.h:104
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:520
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:475
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:489
ctx
AVFormatContext * ctx
Definition: movenc.c:49
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:593
AVPixFmtDescriptor::log2_chroma_w
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:80
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:73
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:511
BLEND_EXTREMITY
@ BLEND_EXTREMITY
Definition: blend.h:61
NAN
#define NAN
Definition: mathematics.h:115
FRAMESYNC_DEFINE_CLASS
FRAMESYNC_DEFINE_CLASS(blend, BlendContext, fs)
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
ThreadData::h
int h
Definition: vf_blend.c:61
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:87
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:459
ThreadData::dst
AVFrame * dst
Definition: vf_blend.c:58
BLEND_PINLIGHT
@ BLEND_PINLIGHT
Definition: blend.h:47
FilterParams::mode
enum BlendMode mode
Definition: blend.h:79
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:497
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:709
BLEND_MULTIPLY
@ BLEND_MULTIPLY
Definition: blend.h:42
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:200
BlendMode
BlendMode
Definition: blend.h:27
VAR_SH
@ VAR_SH
Definition: vf_blend.c:54
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:85
BlendContext::depth
int depth
Definition: vf_blend.c:46
activate
filter_frame For filters that do not use the activate() callback
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:480
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_blend.c:249
double
double
Definition: af_crystalizer.c:131
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:479
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:493
BLEND_SUBTRACT
@ BLEND_SUBTRACT
Definition: blend.h:51
BLEND_FREEZE
@ BLEND_FREEZE
Definition: blend.h:60
FilterParams
filter data
Definition: mlp.h:86
BLEND_LIGHTEN
@ BLEND_LIGHTEN
Definition: blend.h:41
BLEND_HEAT
@ BLEND_HEAT
Definition: blend.h:59
eval.h
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:94
ff_framesync_init_dualinput
int ff_framesync_init_dualinput(FFFrameSync *fs, AVFilterContext *parent)
Initialize a frame sync structure for dualinput.
Definition: framesync.c:378
VAR_A
@ VAR_A
Definition: vf_blend.c:54
BlendContext::prev_frame
AVFrame * prev_frame
Definition: vf_blend.c:49
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:508
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:483
BLEND_DODGE
@ BLEND_DODGE
Definition: blend.h:38
BlendContext::all_expr
char * all_expr
Definition: vf_blend.c:42
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
BlendContext::tblend
int tblend
Definition: vf_blend.c:48
BlendContext
Definition: vf_blend.c:37
ff_vf_tblend
const AVFilter ff_vf_tblend
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:485
BlendContext::hsub
int hsub
Definition: vf_blend.c:40
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:887
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:174
VAR_N
@ VAR_N
Definition: vf_blend.c:54
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:518
FilterParams::blend
void(* blend)(const uint8_t *top, ptrdiff_t top_linesize, const uint8_t *bottom, ptrdiff_t bottom_linesize, uint8_t *dst, ptrdiff_t dst_linesize, ptrdiff_t width, ptrdiff_t height, struct FilterParams *param, SliceParams *sliceparam)
Definition: blend.h:83
VAR_X
@ VAR_X
Definition: vf_blend.c:54
ThreadData::param
FilterParams * param
Definition: vf_blend.c:62
BLEND_INTERPOLATE
@ BLEND_INTERPOLATE
Definition: blend.h:67
internal.h
BLEND_HARDLIGHT
@ BLEND_HARDLIGHT
Definition: blend.h:40
BlendContext::all_mode
enum BlendMode all_mode
Definition: vf_blend.c:43
VAR_VARS_NB
@ VAR_VARS_NB
Definition: vf_blend.c:54
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
SliceParams
Definition: blend.h:72
ff_vf_blend
const AVFilter ff_vf_blend
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:495
BlendContext::fs
FFFrameSync fs
Definition: vf_blend.c:39
ff_blend_init
static av_unused void ff_blend_init(FilterParams *param, int depth)
Definition: vf_blend_init.h:162
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:827
blend.h
ThreadData
Used for passing data between threads.
Definition: dsddec.c:71
BLEND_STAIN
@ BLEND_STAIN
Definition: blend.h:66
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
BLEND_SOFTDIFFERENCE
@ BLEND_SOFTDIFFERENCE
Definition: blend.h:62
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:107
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
BLEND_VIVIDLIGHT
@ BLEND_VIVIDLIGHT
Definition: blend.h:52
TOP
#define TOP
Definition: vf_blend.c:34
BLEND_DIFFERENCE
@ BLEND_DIFFERENCE
Definition: blend.h:35
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:264
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:477
BlendContext::nb_threads
int nb_threads
Definition: vf_blend.c:50
BlendContext::nb_planes
int nb_planes
Definition: vf_blend.c:41
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_blend.c:340
AVFilter
Filter definition.
Definition: avfilter.h:166
BLEND_HARDMIX
@ BLEND_HARDMIX
Definition: blend.h:54
ret
ret
Definition: filter_design.txt:187
BLEND_GRAINMERGE
@ BLEND_GRAINMERGE
Definition: blend.h:57
pixfmt.h
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:515
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:482
ThreadData::inlink
AVFilterLink * inlink
Definition: vf_blend.c:59
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:487
AVFrame::height
int height
Definition: frame.h:446
BLEND_HARDOVERLAY
@ BLEND_HARDOVERLAY
Definition: blend.h:68
VAR_H
@ VAR_H
Definition: vf_blend.c:54
framesync.h
blend_frame
static AVFrame * blend_frame(AVFilterContext *ctx, AVFrame *top_buf, const AVFrame *bottom_buf)
Definition: vf_blend.c:196
mode
mode
Definition: ebur128.h:83
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:519
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:245
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:509
values
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 values
Definition: filter_design.txt:263
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:105
BLEND_XOR
@ BLEND_XOR
Definition: blend.h:53
slice_start
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
Definition: dec.c:699
BlendContext::all_opacity
double all_opacity
Definition: vf_blend.c:44
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_blend.c:281
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:78
AVFilterContext
An instance of a filter.
Definition: avfilter.h:407
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
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:117
av_strdup
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:272
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:77
mem.h
BLEND_DARKEN
@ BLEND_DARKEN
Definition: blend.h:34
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
blend_frame_for_dualinput
static int blend_frame_for_dualinput(FFFrameSync *fs)
Definition: vf_blend.c:234
BLEND_AVERAGE
@ BLEND_AVERAGE
Definition: blend.h:32
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
FilterParams::opacity
double opacity
Definition: blend.h:80
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:80
ThreadData::top
const AVFrame * top
Definition: vf_blend.c:57
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:155
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:474
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:79
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:484
BLEND_BURN
@ BLEND_BURN
Definition: blend.h:33
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:488
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:358
blend_outputs
static const AVFilterPad blend_outputs[]
Definition: vf_blend.c:402
ff_framesync_dualinput_get
int ff_framesync_dualinput_get(FFFrameSync *fs, AVFrame **f0, AVFrame **f1)
Definition: framesync.c:396
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:249
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:460
ff_filter_execute
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: internal.h:134
BLEND_REFLECT
@ BLEND_REFLECT
Definition: blend.h:48
BLEND_GRAINEXTRACT
@ BLEND_GRAINEXTRACT
Definition: blend.h:36
VAR_BOTTOM
@ VAR_BOTTOM
Definition: vf_blend.c:54
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:254
BOTTOM
#define BOTTOM
Definition: vf_blend.c:35
AVPixFmtDescriptor::log2_chroma_h
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:89
FLAGS
#define FLAGS
Definition: vf_blend.c:66
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:173
BLEND_LINEARLIGHT
@ BLEND_LINEARLIGHT
Definition: blend.h:55
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:486
BLEND_NORMAL
@ BLEND_NORMAL
Definition: blend.h:29
BLEND_OVERLAY
@ BLEND_OVERLAY
Definition: blend.h:45