FFmpeg  4.4.4
f_drawgraph.c
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1 /*
2  * Copyright (c) 2015 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 "float.h"
22 
23 #include "libavutil/avstring.h"
24 #include "libavutil/eval.h"
25 #include "libavutil/intreadwrite.h"
26 #include "libavutil/opt.h"
27 #include "avfilter.h"
28 #include "formats.h"
29 #include "internal.h"
30 #include "video.h"
31 
32 typedef struct DrawGraphContext {
33  const AVClass *class;
34 
35  char *key[4];
36  float min, max;
37  char *fg_str[4];
39  uint8_t bg[4];
40  int mode;
41  int slide;
42  int w, h;
44 
46  int x;
47  int prev_y[4];
48  int first[4];
49  float *values[4];
50  int values_size[4];
51  int nb_values;
52  int64_t prev_pts;
54 
55 #define OFFSET(x) offsetof(DrawGraphContext, x)
56 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
57 
58 static const AVOption drawgraph_options[] = {
59  { "m1", "set 1st metadata key", OFFSET(key[0]), AV_OPT_TYPE_STRING, {.str=""}, 0, 0, FLAGS },
60  { "fg1", "set 1st foreground color expression", OFFSET(fg_str[0]), AV_OPT_TYPE_STRING, {.str="0xffff0000"}, 0, 0, FLAGS },
61  { "m2", "set 2nd metadata key", OFFSET(key[1]), AV_OPT_TYPE_STRING, {.str=""}, 0, 0, FLAGS },
62  { "fg2", "set 2nd foreground color expression", OFFSET(fg_str[1]), AV_OPT_TYPE_STRING, {.str="0xff00ff00"}, 0, 0, FLAGS },
63  { "m3", "set 3rd metadata key", OFFSET(key[2]), AV_OPT_TYPE_STRING, {.str=""}, 0, 0, FLAGS },
64  { "fg3", "set 3rd foreground color expression", OFFSET(fg_str[2]), AV_OPT_TYPE_STRING, {.str="0xffff00ff"}, 0, 0, FLAGS },
65  { "m4", "set 4th metadata key", OFFSET(key[3]), AV_OPT_TYPE_STRING, {.str=""}, 0, 0, FLAGS },
66  { "fg4", "set 4th foreground color expression", OFFSET(fg_str[3]), AV_OPT_TYPE_STRING, {.str="0xffffff00"}, 0, 0, FLAGS },
67  { "bg", "set background color", OFFSET(bg), AV_OPT_TYPE_COLOR, {.str="white"}, 0, 0, FLAGS },
68  { "min", "set minimal value", OFFSET(min), AV_OPT_TYPE_FLOAT, {.dbl=-1.}, INT_MIN, INT_MAX, FLAGS },
69  { "max", "set maximal value", OFFSET(max), AV_OPT_TYPE_FLOAT, {.dbl=1.}, INT_MIN, INT_MAX, FLAGS },
70  { "mode", "set graph mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=2}, 0, 2, FLAGS, "mode" },
71  {"bar", "draw bars", OFFSET(mode), AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "mode"},
72  {"dot", "draw dots", OFFSET(mode), AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "mode"},
73  {"line", "draw lines", OFFSET(mode), AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "mode"},
74  { "slide", "set slide mode", OFFSET(slide), AV_OPT_TYPE_INT, {.i64=0}, 0, 4, FLAGS, "slide" },
75  {"frame", "draw new frames", OFFSET(slide), AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "slide"},
76  {"replace", "replace old columns with new", OFFSET(slide), AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "slide"},
77  {"scroll", "scroll from right to left", OFFSET(slide), AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "slide"},
78  {"rscroll", "scroll from left to right", OFFSET(slide), AV_OPT_TYPE_CONST, {.i64=3}, 0, 0, FLAGS, "slide"},
79  {"picture", "display graph in single frame", OFFSET(slide), AV_OPT_TYPE_CONST, {.i64=4}, 0, 0, FLAGS, "slide"},
80  { "size", "set graph size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="900x256"}, 0, 0, FLAGS },
81  { "s", "set graph size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="900x256"}, 0, 0, FLAGS },
82  { "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
83  { "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
84  { NULL }
85 };
86 
87 static const char *const var_names[] = { "MAX", "MIN", "VAL", NULL };
89 
91 {
92  DrawGraphContext *s = ctx->priv;
93  int ret, i;
94 
95  if (s->max <= s->min) {
96  av_log(ctx, AV_LOG_ERROR, "max is same or lower than min\n");
97  return AVERROR(EINVAL);
98  }
99 
100  for (i = 0; i < 4; i++) {
101  if (s->fg_str[i]) {
102  ret = av_expr_parse(&s->fg_expr[i], s->fg_str[i], var_names,
103  NULL, NULL, NULL, NULL, 0, ctx);
104 
105  if (ret < 0)
106  return ret;
107  }
108  }
109 
110  s->first[0] = s->first[1] = s->first[2] = s->first[3] = 1;
111 
112  if (s->slide == 4) {
113  s->values[0] = av_fast_realloc(NULL, &s->values_size[0], 2000);
114  s->values[1] = av_fast_realloc(NULL, &s->values_size[1], 2000);
115  s->values[2] = av_fast_realloc(NULL, &s->values_size[2], 2000);
116  s->values[3] = av_fast_realloc(NULL, &s->values_size[3], 2000);
117 
118  if (!s->values[0] || !s->values[1] ||
119  !s->values[2] || !s->values[3]) {
120  return AVERROR(ENOMEM);
121  }
122  }
123 
124  return 0;
125 }
126 
128 {
129  AVFilterLink *outlink = ctx->outputs[0];
130  static const enum AVPixelFormat pix_fmts[] = {
133  };
134  int ret;
135 
137  if ((ret = ff_formats_ref(fmts_list, &outlink->incfg.formats)) < 0)
138  return ret;
139 
140  return 0;
141 }
142 
144 {
145  int i, j;
146  int bg = AV_RN32(s->bg);
147 
148  for (i = 0; i < out->height; i++)
149  for (j = 0; j < out->width; j++)
150  AV_WN32(out->data[0] + i * out->linesize[0] + j * 4, bg);
151 }
152 
153 static inline void draw_dot(int fg, int x, int y, AVFrame *out)
154 {
155  AV_WN32(out->data[0] + y * out->linesize[0] + x * 4, fg);
156 }
157 
158 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
159 {
160  AVFilterContext *ctx = inlink->dst;
161  DrawGraphContext *s = ctx->priv;
162  AVFilterLink *outlink = ctx->outputs[0];
163  AVDictionary *metadata;
165  AVFrame *out = s->out;
166  AVFrame *clone = NULL;
167  int64_t in_pts, out_pts;
168  int i;
169 
170  if (s->slide == 4 && s->nb_values >= s->values_size[0] / sizeof(float)) {
171  float *ptr;
172 
173  ptr = av_fast_realloc(s->values[0], &s->values_size[0], s->values_size[0] * 2);
174  if (!ptr)
175  return AVERROR(ENOMEM);
176  s->values[0] = ptr;
177 
178  ptr = av_fast_realloc(s->values[1], &s->values_size[1], s->values_size[1] * 2);
179  if (!ptr)
180  return AVERROR(ENOMEM);
181  s->values[1] = ptr;
182 
183  ptr = av_fast_realloc(s->values[2], &s->values_size[2], s->values_size[2] * 2);
184  if (!ptr)
185  return AVERROR(ENOMEM);
186  s->values[2] = ptr;
187 
188  ptr = av_fast_realloc(s->values[3], &s->values_size[3], s->values_size[3] * 2);
189  if (!ptr)
190  return AVERROR(ENOMEM);
191  s->values[3] = ptr;
192  }
193 
194  if (s->slide != 4 || s->nb_values == 0) {
195  if (!s->out || s->out->width != outlink->w ||
196  s->out->height != outlink->h) {
197  av_frame_free(&s->out);
198  s->out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
199  out = s->out;
200  if (!s->out) {
201  av_frame_free(&in);
202  return AVERROR(ENOMEM);
203  }
204 
205  clear_image(s, out, outlink);
206  }
208  }
209 
210  metadata = in->metadata;
211 
212  for (i = 0; i < 4; i++) {
213  double values[VAR_VARS_NB];
214  int j, y, x, old;
215  uint32_t fg, bg;
216  float vf;
217 
218  if (s->slide == 4)
219  s->values[i][s->nb_values] = NAN;
220 
221  e = av_dict_get(metadata, s->key[i], NULL, 0);
222  if (!e || !e->value)
223  continue;
224 
225  if (av_sscanf(e->value, "%f", &vf) != 1)
226  continue;
227 
228  vf = av_clipf(vf, s->min, s->max);
229 
230  if (s->slide == 4) {
231  s->values[i][s->nb_values] = vf;
232  continue;
233  }
234 
235  values[VAR_MIN] = s->min;
236  values[VAR_MAX] = s->max;
237  values[VAR_VAL] = vf;
238 
239  fg = av_expr_eval(s->fg_expr[i], values, NULL);
240  bg = AV_RN32(s->bg);
241 
242  if (i == 0 && (s->x >= outlink->w || s->slide == 3)) {
243  if (s->slide == 0 || s->slide == 1)
244  s->x = 0;
245 
246  if (s->slide == 2) {
247  s->x = outlink->w - 1;
248  for (j = 0; j < outlink->h; j++) {
249  memmove(out->data[0] + j * out->linesize[0] ,
250  out->data[0] + j * out->linesize[0] + 4,
251  (outlink->w - 1) * 4);
252  }
253  } else if (s->slide == 3) {
254  s->x = 0;
255  for (j = 0; j < outlink->h; j++) {
256  memmove(out->data[0] + j * out->linesize[0] + 4,
257  out->data[0] + j * out->linesize[0],
258  (outlink->w - 1) * 4);
259  }
260  } else if (s->slide == 0) {
261  clear_image(s, out, outlink);
262  }
263  }
264 
265  x = s->x;
266  y = (outlink->h - 1) * (1 - ((vf - s->min) / (s->max - s->min)));
267 
268  switch (s->mode) {
269  case 0:
270  if (i == 0 && (s->slide > 0))
271  for (j = 0; j < outlink->h; j++)
272  draw_dot(bg, x, j, out);
273 
274  old = AV_RN32(out->data[0] + y * out->linesize[0] + x * 4);
275  for (j = y; j < outlink->h; j++) {
276  if (old != bg &&
277  (AV_RN32(out->data[0] + j * out->linesize[0] + x * 4) != old) ||
278  AV_RN32(out->data[0] + FFMIN(j+1, outlink->h - 1) * out->linesize[0] + x * 4) != old) {
279  draw_dot(fg, x, j, out);
280  break;
281  }
282  draw_dot(fg, x, j, out);
283  }
284  break;
285  case 1:
286  if (i == 0 && (s->slide > 0))
287  for (j = 0; j < outlink->h; j++)
288  draw_dot(bg, x, j, out);
289  draw_dot(fg, x, y, out);
290  break;
291  case 2:
292  if (s->first[i]) {
293  s->first[i] = 0;
294  s->prev_y[i] = y;
295  }
296 
297  if (i == 0 && (s->slide > 0)) {
298  for (j = 0; j < y; j++)
299  draw_dot(bg, x, j, out);
300  for (j = outlink->h - 1; j > y; j--)
301  draw_dot(bg, x, j, out);
302  }
303  if (y <= s->prev_y[i]) {
304  for (j = y; j <= s->prev_y[i]; j++)
305  draw_dot(fg, x, j, out);
306  } else {
307  for (j = s->prev_y[i]; j <= y; j++)
308  draw_dot(fg, x, j, out);
309  }
310  s->prev_y[i] = y;
311  break;
312  }
313  }
314 
315  s->nb_values++;
316  s->x++;
317 
318  in_pts = in->pts;
319 
320  av_frame_free(&in);
321 
322  if (s->slide == 4)
323  return 0;
324 
325  out_pts = av_rescale_q(in_pts, inlink->time_base, outlink->time_base);
326 
327  if (out_pts == s->prev_pts)
328  return 0;
329 
330  clone = av_frame_clone(s->out);
331  if (!clone)
332  return AVERROR(ENOMEM);
333 
334  clone->pts = s->prev_pts = out_pts;
335  return ff_filter_frame(outlink, clone);
336 }
337 
338 static int request_frame(AVFilterLink *outlink)
339 {
340  AVFilterContext *ctx = outlink->src;
341  DrawGraphContext *s = ctx->priv;
342  AVFrame *out = s->out;
343  int ret, i, k, step, l;
344 
345  ret = ff_request_frame(ctx->inputs[0]);
346 
347  if (s->slide == 4 && ret == AVERROR_EOF && s->nb_values > 0) {
348  s->x = l = 0;
349  step = ceil(s->nb_values / (float)s->w);
350 
351  for (k = 0; k < s->nb_values; k++) {
352  for (i = 0; i < 4; i++) {
353  double values[VAR_VARS_NB];
354  int j, y, x, old;
355  uint32_t fg, bg;
356  float vf = s->values[i][k];
357 
358  if (isnan(vf))
359  continue;
360 
361  values[VAR_MIN] = s->min;
362  values[VAR_MAX] = s->max;
363  values[VAR_VAL] = vf;
364 
365  fg = av_expr_eval(s->fg_expr[i], values, NULL);
366  bg = AV_RN32(s->bg);
367 
368  x = s->x;
369  y = (outlink->h - 1) * (1 - ((vf - s->min) / (s->max - s->min)));
370 
371  switch (s->mode) {
372  case 0:
373  old = AV_RN32(out->data[0] + y * out->linesize[0] + x * 4);
374  for (j = y; j < outlink->h; j++) {
375  if (old != bg &&
376  (AV_RN32(out->data[0] + j * out->linesize[0] + x * 4) != old) ||
377  AV_RN32(out->data[0] + FFMIN(j+1, outlink->h - 1) * out->linesize[0] + x * 4) != old) {
378  draw_dot(fg, x, j, out);
379  break;
380  }
381  draw_dot(fg, x, j, out);
382  }
383  break;
384  case 1:
385  draw_dot(fg, x, y, out);
386  break;
387  case 2:
388  if (s->first[i]) {
389  s->first[i] = 0;
390  s->prev_y[i] = y;
391  }
392 
393  if (y <= s->prev_y[i]) {
394  for (j = y; j <= s->prev_y[i]; j++)
395  draw_dot(fg, x, j, out);
396  } else {
397  for (j = s->prev_y[i]; j <= y; j++)
398  draw_dot(fg, x, j, out);
399  }
400  s->prev_y[i] = y;
401  break;
402  }
403  }
404 
405  l++;
406  if (l >= step) {
407  l = 0;
408  s->x++;
409  }
410  }
411 
412  s->nb_values = 0;
413  out->pts = 0;
414  ret = ff_filter_frame(ctx->outputs[0], s->out);
415  }
416 
417  return ret;
418 }
419 
420 static int config_output(AVFilterLink *outlink)
421 {
422  DrawGraphContext *s = outlink->src->priv;
423 
424  outlink->w = s->w;
425  outlink->h = s->h;
426  outlink->sample_aspect_ratio = (AVRational){1,1};
427  outlink->frame_rate = s->frame_rate;
428  outlink->time_base = av_inv_q(outlink->frame_rate);
429  s->prev_pts = AV_NOPTS_VALUE;
430 
431  return 0;
432 }
433 
435 {
436  DrawGraphContext *s = ctx->priv;
437  int i;
438 
439  for (i = 0; i < 4; i++)
440  av_expr_free(s->fg_expr[i]);
441 
442  if (s->slide != 4)
443  av_frame_free(&s->out);
444 
445  av_freep(&s->values[0]);
446  av_freep(&s->values[1]);
447  av_freep(&s->values[2]);
448  av_freep(&s->values[3]);
449 }
450 
451 #if CONFIG_DRAWGRAPH_FILTER
452 
453 AVFILTER_DEFINE_CLASS(drawgraph);
454 
455 static const AVFilterPad drawgraph_inputs[] = {
456  {
457  .name = "default",
458  .type = AVMEDIA_TYPE_VIDEO,
459  .filter_frame = filter_frame,
460  },
461  { NULL }
462 };
463 
464 static const AVFilterPad drawgraph_outputs[] = {
465  {
466  .name = "default",
467  .type = AVMEDIA_TYPE_VIDEO,
468  .config_props = config_output,
469  .request_frame = request_frame,
470  },
471  { NULL }
472 };
473 
475  .name = "drawgraph",
476  .description = NULL_IF_CONFIG_SMALL("Draw a graph using input video metadata."),
477  .priv_size = sizeof(DrawGraphContext),
478  .priv_class = &drawgraph_class,
480  .init = init,
481  .uninit = uninit,
482  .inputs = drawgraph_inputs,
483  .outputs = drawgraph_outputs,
484 };
485 
486 #endif // CONFIG_DRAWGRAPH_FILTER
487 
488 #if CONFIG_ADRAWGRAPH_FILTER
489 
490 #define adrawgraph_options drawgraph_options
491 AVFILTER_DEFINE_CLASS(adrawgraph);
492 
493 static const AVFilterPad adrawgraph_inputs[] = {
494  {
495  .name = "default",
496  .type = AVMEDIA_TYPE_AUDIO,
497  .filter_frame = filter_frame,
498  },
499  { NULL }
500 };
501 
502 static const AVFilterPad adrawgraph_outputs[] = {
503  {
504  .name = "default",
505  .type = AVMEDIA_TYPE_VIDEO,
506  .config_props = config_output,
507  .request_frame = request_frame,
508  },
509  { NULL }
510 };
511 
513  .name = "adrawgraph",
514  .description = NULL_IF_CONFIG_SMALL("Draw a graph using input audio metadata."),
515  .priv_size = sizeof(DrawGraphContext),
516  .priv_class = &adrawgraph_class,
518  .init = init,
519  .uninit = uninit,
520  .inputs = adrawgraph_inputs,
521  .outputs = adrawgraph_outputs,
522 };
523 #endif // CONFIG_ADRAWGRAPH_FILTER
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
AVFilter ff_avf_adrawgraph
AVFilter ff_vf_drawgraph
#define av_cold
Definition: attributes.h:88
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
uint8_t
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1096
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
Definition: avfilter.c:408
Main libavfilter public API header.
#define s(width, name)
Definition: cbs_vp9.c:257
#define FFMIN(a, b)
Definition: common.h:105
#define av_clipf
Definition: common.h:170
#define NULL
Definition: coverity.c:32
static __device__ float ceil(float a)
Definition: cuda_runtime.h:176
#define max(a, b)
Definition: cuda_runtime.h:33
mode
Use these values in ebur128_init (or'ed).
Definition: ebur128.h:83
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:336
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
Definition: eval.c:766
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:685
simple arithmetic expression evaluator
static int query_formats(AVFilterContext *ctx)
Definition: f_drawgraph.c:127
static void draw_dot(int fg, int x, int y, AVFrame *out)
Definition: f_drawgraph.c:153
#define FLAGS
Definition: f_drawgraph.c:56
static int request_frame(AVFilterLink *outlink)
Definition: f_drawgraph.c:338
static const AVOption drawgraph_options[]
Definition: f_drawgraph.c:58
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: f_drawgraph.c:158
static void clear_image(DrawGraphContext *s, AVFrame *out, AVFilterLink *outlink)
Definition: f_drawgraph.c:143
static const char *const var_names[]
Definition: f_drawgraph.c:87
static av_cold int init(AVFilterContext *ctx)
Definition: f_drawgraph.c:90
static av_cold void uninit(AVFilterContext *ctx)
Definition: f_drawgraph.c:434
#define OFFSET(x)
Definition: f_drawgraph.c:55
static int config_output(AVFilterLink *outlink)
Definition: f_drawgraph.c:420
@ VAR_VAL
Definition: f_drawgraph.c:88
@ VAR_MAX
Definition: f_drawgraph.c:88
@ VAR_VARS_NB
Definition: f_drawgraph.c:88
@ VAR_MIN
Definition: f_drawgraph.c:88
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add ref as a new reference to formats.
Definition: formats.c:466
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
@ AV_OPT_TYPE_IMAGE_SIZE
offset must point to two consecutive integers
Definition: opt.h:235
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
@ AV_OPT_TYPE_VIDEO_RATE
offset must point to AVRational
Definition: opt.h:238
@ AV_OPT_TYPE_INT
Definition: opt.h:225
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
@ AV_OPT_TYPE_COLOR
Definition: opt.h:240
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
#define AVERROR_EOF
End of file.
Definition: error.h:55
#define AVERROR(e)
Definition: error.h:43
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:540
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:658
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
void * av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
Reallocate the given buffer if it is not large enough, otherwise do nothing.
Definition: mem.c:478
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
int av_sscanf(const char *string, const char *format,...)
See libc sscanf manual for more information.
Definition: avsscanf.c:962
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
const char * key
int i
Definition: input.c:407
#define AV_WN32(p, v)
Definition: intreadwrite.h:376
#define AV_RN32(p)
Definition: intreadwrite.h:364
#define AVFILTER_DEFINE_CLASS(fname)
Definition: internal.h:288
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:309
#define isnan(x)
Definition: libm.h:340
uint8_t w
Definition: llviddspenc.c:39
#define NAN
Definition: mathematics.h:64
AVOptions.
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
Describe the class of an AVClass context structure.
Definition: log.h:67
char * value
Definition: dict.h:83
Definition: eval.c:157
An instance of a filter.
Definition: avfilter.h:341
void * priv
private data for use by the filter
Definition: avfilter.h:356
AVFilterFormats * formats
List of supported formats (pixel or sample).
Definition: avfilter.h:445
A list of supported formats for one end of a filter link.
Definition: formats.h:65
A filter pad used for either input or output.
Definition: internal.h:54
const char * name
Pad name.
Definition: internal.h:60
Filter definition.
Definition: avfilter.h:145
const char * name
Filter name.
Definition: avfilter.h:149
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:411
AVOption.
Definition: opt.h:248
Rational number (pair of numerator and denominator).
Definition: rational.h:58
char * fg_str[4]
Definition: f_drawgraph.c:37
int64_t prev_pts
Definition: f_drawgraph.c:52
AVExpr * fg_expr[4]
Definition: f_drawgraph.c:38
float * values[4]
Definition: f_drawgraph.c:49
AVRational frame_rate
Definition: f_drawgraph.c:43
uint8_t bg[4]
Definition: f_drawgraph.c:39
char * key[4]
Definition: f_drawgraph.c:35
int values_size[4]
Definition: f_drawgraph.c:50
AVFrame * out
Definition: f_drawgraph.c:45
#define av_freep(p)
#define av_log(a,...)
FILE * out
Definition: movenc.c:54
AVFormatContext * ctx
Definition: movenc.c:48
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:104
float min