FFmpeg
avf_showcwt.c
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1 /*
2  * Copyright (c) 2022 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 #include <math.h>
23 
24 #include "libavutil/tx.h"
25 #include "libavutil/avassert.h"
26 #include "libavutil/avstring.h"
28 #include "libavutil/float_dsp.h"
29 #include "libavutil/cpu.h"
30 #include "libavutil/opt.h"
31 #include "libavutil/parseutils.h"
32 #include "audio.h"
33 #include "formats.h"
34 #include "video.h"
35 #include "avfilter.h"
36 #include "filters.h"
37 #include "internal.h"
38 
49 };
50 
58 };
59 
66 };
67 
68 enum SlideMode {
73 };
74 
75 typedef struct ShowCWTContext {
76  const AVClass *class;
77  int w, h;
78  int mode;
79  char *rate_str;
85  int pos;
86  int64_t in_pts;
87  int64_t old_pts;
88  int64_t eof_pts;
91  unsigned *index;
107  int pps;
108  int eof;
109  int slide;
122  float deviation;
123  float bar_ratio;
124  int bar_size;
125  float rotation;
126 
129 
130 #define OFFSET(x) offsetof(ShowCWTContext, x)
131 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
132 
133 static const AVOption showcwt_options[] = {
134  { "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "640x512"}, 0, 0, FLAGS },
135  { "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "640x512"}, 0, 0, FLAGS },
136  { "rate", "set video rate", OFFSET(rate_str), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, FLAGS },
137  { "r", "set video rate", OFFSET(rate_str), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, FLAGS },
138  { "scale", "set frequency scale", OFFSET(frequency_scale), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_FSCALE-1, FLAGS, "scale" },
139  { "linear", "linear", 0, AV_OPT_TYPE_CONST,{.i64=FSCALE_LINEAR}, 0, 0, FLAGS, "scale" },
140  { "log", "logarithmic", 0, AV_OPT_TYPE_CONST,{.i64=FSCALE_LOG}, 0, 0, FLAGS, "scale" },
141  { "bark", "bark", 0, AV_OPT_TYPE_CONST,{.i64=FSCALE_BARK}, 0, 0, FLAGS, "scale" },
142  { "mel", "mel", 0, AV_OPT_TYPE_CONST,{.i64=FSCALE_MEL}, 0, 0, FLAGS, "scale" },
143  { "erbs", "erbs", 0, AV_OPT_TYPE_CONST,{.i64=FSCALE_ERBS}, 0, 0, FLAGS, "scale" },
144  { "sqrt", "sqrt", 0, AV_OPT_TYPE_CONST,{.i64=FSCALE_SQRT}, 0, 0, FLAGS, "scale" },
145  { "cbrt", "cbrt", 0, AV_OPT_TYPE_CONST,{.i64=FSCALE_CBRT}, 0, 0, FLAGS, "scale" },
146  { "qdrt", "qdrt", 0, AV_OPT_TYPE_CONST,{.i64=FSCALE_QDRT}, 0, 0, FLAGS, "scale" },
147  { "iscale", "set intensity scale", OFFSET(intensity_scale),AV_OPT_TYPE_INT, {.i64=0}, 0, NB_ISCALE-1, FLAGS, "iscale" },
148  { "linear", "linear", 0, AV_OPT_TYPE_CONST,{.i64=ISCALE_LINEAR}, 0, 0, FLAGS, "iscale" },
149  { "log", "logarithmic", 0, AV_OPT_TYPE_CONST,{.i64=ISCALE_LOG}, 0, 0, FLAGS, "iscale" },
150  { "sqrt", "sqrt", 0, AV_OPT_TYPE_CONST,{.i64=ISCALE_SQRT}, 0, 0, FLAGS, "iscale" },
151  { "cbrt", "cbrt", 0, AV_OPT_TYPE_CONST,{.i64=ISCALE_CBRT}, 0, 0, FLAGS, "iscale" },
152  { "qdrt", "qdrt", 0, AV_OPT_TYPE_CONST,{.i64=ISCALE_QDRT}, 0, 0, FLAGS, "iscale" },
153  { "min", "set minimum frequency", OFFSET(minimum_frequency), AV_OPT_TYPE_FLOAT, {.dbl = 20.}, 1, 192000, FLAGS },
154  { "max", "set maximum frequency", OFFSET(maximum_frequency), AV_OPT_TYPE_FLOAT, {.dbl = 20000.}, 1, 192000, FLAGS },
155  { "imin", "set minimum intensity", OFFSET(minimum_intensity), AV_OPT_TYPE_FLOAT, {.dbl = 0.}, 0, 1, FLAGS },
156  { "imax", "set maximum intensity", OFFSET(maximum_intensity), AV_OPT_TYPE_FLOAT, {.dbl = 1.}, 0, 1, FLAGS },
157  { "logb", "set logarithmic basis", OFFSET(logarithmic_basis), AV_OPT_TYPE_FLOAT, {.dbl = 0.0001}, 0, 1, FLAGS },
158  { "deviation", "set frequency deviation", OFFSET(deviation), AV_OPT_TYPE_FLOAT, {.dbl = 1.}, 0, 100, FLAGS },
159  { "pps", "set pixels per second", OFFSET(pps), AV_OPT_TYPE_INT, {.i64 = 64}, 1, 1024, FLAGS },
160  { "mode", "set output mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 4, FLAGS, "mode" },
161  { "magnitude", "magnitude", 0, AV_OPT_TYPE_CONST,{.i64=0}, 0, 0, FLAGS, "mode" },
162  { "phase", "phase", 0, AV_OPT_TYPE_CONST,{.i64=1}, 0, 0, FLAGS, "mode" },
163  { "magphase", "magnitude+phase", 0, AV_OPT_TYPE_CONST,{.i64=2}, 0, 0, FLAGS, "mode" },
164  { "channel", "color per channel", 0, AV_OPT_TYPE_CONST,{.i64=3}, 0, 0, FLAGS, "mode" },
165  { "stereo", "stereo difference", 0, AV_OPT_TYPE_CONST,{.i64=4}, 0, 0, FLAGS, "mode" },
166  { "slide", "set slide mode", OFFSET(slide), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_SLIDE-1, FLAGS, "slide" },
167  { "replace", "replace", 0, AV_OPT_TYPE_CONST,{.i64=SLIDE_REPLACE},0, 0, FLAGS, "slide" },
168  { "scroll", "scroll", 0, AV_OPT_TYPE_CONST,{.i64=SLIDE_SCROLL}, 0, 0, FLAGS, "slide" },
169  { "frame", "frame", 0, AV_OPT_TYPE_CONST,{.i64=SLIDE_FRAME}, 0, 0, FLAGS, "slide" },
170  { "direction", "set direction mode", OFFSET(direction), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_DIRECTION-1, FLAGS, "direction" },
171  { "lr", "left to right", 0, AV_OPT_TYPE_CONST,{.i64=DIRECTION_LR}, 0, 0, FLAGS, "direction" },
172  { "rl", "right to left", 0, AV_OPT_TYPE_CONST,{.i64=DIRECTION_RL}, 0, 0, FLAGS, "direction" },
173  { "ud", "up to down", 0, AV_OPT_TYPE_CONST,{.i64=DIRECTION_UD}, 0, 0, FLAGS, "direction" },
174  { "du", "down to up", 0, AV_OPT_TYPE_CONST,{.i64=DIRECTION_DU}, 0, 0, FLAGS, "direction" },
175  { "bar", "set bar ratio", OFFSET(bar_ratio), AV_OPT_TYPE_FLOAT, {.dbl = 0.}, 0, 1, FLAGS },
176  { "rotation", "set color rotation", OFFSET(rotation), AV_OPT_TYPE_FLOAT, {.dbl = 0}, -1, 1, FLAGS },
177  { NULL }
178 };
179 
180 AVFILTER_DEFINE_CLASS(showcwt);
181 
183 {
184  ShowCWTContext *s = ctx->priv;
185 
186  av_freep(&s->frequency_band);
187  av_freep(&s->kernel_start);
188  av_freep(&s->kernel_stop);
189  av_freep(&s->index);
190 
191  av_frame_free(&s->cache);
192  av_frame_free(&s->outpicref);
193  av_frame_free(&s->fft_in);
194  av_frame_free(&s->fft_out);
195  av_frame_free(&s->dst_x);
196  av_frame_free(&s->src_x);
197  av_frame_free(&s->ifft_in);
198  av_frame_free(&s->ifft_out);
199  av_frame_free(&s->ch_out);
200  av_frame_free(&s->over);
201  av_frame_free(&s->bh_out);
202 
203  if (s->fft) {
204  for (int n = 0; n < s->nb_threads; n++)
205  av_tx_uninit(&s->fft[n]);
206  av_freep(&s->fft);
207  }
208 
209  if (s->ifft) {
210  for (int n = 0; n < s->nb_threads; n++)
211  av_tx_uninit(&s->ifft[n]);
212  av_freep(&s->ifft);
213  }
214 
215  if (s->kernel) {
216  for (int n = 0; n < s->frequency_band_count; n++)
217  av_freep(&s->kernel[n]);
218  }
219  av_freep(&s->kernel);
220 
221  av_freep(&s->fdsp);
222 }
223 
225 {
228  AVFilterLink *inlink = ctx->inputs[0];
229  AVFilterLink *outlink = ctx->outputs[0];
232  int ret;
233 
235  if ((ret = ff_formats_ref(formats, &inlink->outcfg.formats)) < 0)
236  return ret;
237 
239  if ((ret = ff_channel_layouts_ref(layouts, &inlink->outcfg.channel_layouts)) < 0)
240  return ret;
241 
243  if ((ret = ff_formats_ref(formats, &inlink->outcfg.samplerates)) < 0)
244  return ret;
245 
247  if ((ret = ff_formats_ref(formats, &outlink->incfg.formats)) < 0)
248  return ret;
249 
250  return 0;
251 }
252 
253 static float frequency_band(float *frequency_band,
254  int frequency_band_count,
255  float frequency_range,
256  float frequency_offset,
257  int frequency_scale, float deviation)
258 {
259  float ret = 0.f;
260 
261  deviation = sqrtf(deviation / (4.f * M_PI)); // Heisenberg Gabor Limit
262  for (int y = 0; y < frequency_band_count; y++) {
263  float frequency = frequency_range * (1.f - (float)y / frequency_band_count) + frequency_offset;
264  float frequency_derivative = frequency_range / frequency_band_count;
265 
266  switch (frequency_scale) {
267  case FSCALE_LOG:
268  frequency = powf(2.f, frequency);
269  frequency_derivative *= logf(2.f) * frequency;
270  break;
271  case FSCALE_BARK:
272  frequency = 600.f * sinhf(frequency / 6.f);
273  frequency_derivative *= sqrtf(frequency * frequency + 360000.f) / 6.f;
274  break;
275  case FSCALE_MEL:
276  frequency = 700.f * (powf(10.f, frequency / 2595.f) - 1.f);
277  frequency_derivative *= (frequency + 700.f) * logf(10.f) / 2595.f;
278  break;
279  case FSCALE_ERBS:
280  frequency = 676170.4f / (47.06538f - expf(frequency * 0.08950404f)) - 14678.49f;
281  frequency_derivative *= (frequency * frequency + 14990.4f * frequency + 4577850.f) / 160514.f;
282  break;
283  case FSCALE_SQRT:
284  frequency = frequency * frequency;
285  frequency_derivative *= 2.f * sqrtf(frequency);
286  break;
287  case FSCALE_CBRT:
288  frequency = frequency * frequency * frequency;
289  frequency_derivative *= 3.f * powf(frequency, 2.f / 3.f);
290  break;
291  case FSCALE_QDRT:
292  frequency = frequency * frequency * frequency * frequency;
293  frequency_derivative *= 4.f * powf(frequency, 3.f / 4.f);
294  break;
295  }
296 
297  frequency_band[y*2 ] = frequency;
298  frequency_band[y*2+1] = frequency_derivative * deviation;
299 
300  ret = 1.f / (frequency_derivative * deviation);
301  }
302 
303  return ret;
304 }
305 
306 static float remap_log(ShowCWTContext *s, float value, int iscale, float log_factor)
307 {
308  const float max = s->maximum_intensity;
309  const float min = s->minimum_intensity;
310  float ret;
311 
312  value += min;
313 
314  switch (iscale) {
315  case ISCALE_LINEAR:
316  ret = max - expf(value / log_factor);
317  break;
318  case ISCALE_LOG:
319  value = logf(value) * log_factor;
320  ret = max - av_clipf(value, 0.f, 1.f);
321  break;
322  case ISCALE_SQRT:
323  value = max - expf(value / log_factor);
324  ret = sqrtf(value);
325  break;
326  case ISCALE_CBRT:
327  value = max - expf(value / log_factor);
328  ret = cbrtf(value);
329  break;
330  case ISCALE_QDRT:
331  value = max - expf(value / log_factor);
332  ret = powf(value, 0.25f);
333  break;
334  }
335 
336  return av_clipf(ret, 0.f, 1.f);
337 }
338 
339 static int run_channel_cwt_prepare(AVFilterContext *ctx, void *arg, int jobnr, int ch)
340 {
341  ShowCWTContext *s = ctx->priv;
342  const int hop_size = s->hop_size;
343  AVFrame *fin = arg;
344  float *cache = (float *)s->cache->extended_data[ch];
345  AVComplexFloat *src = (AVComplexFloat *)s->fft_in->extended_data[ch];
346  AVComplexFloat *dst = (AVComplexFloat *)s->fft_out->extended_data[ch];
347  const int offset = (s->input_padding_size - hop_size) >> 1;
348 
349  if (fin) {
350  const float *input = (const float *)fin->extended_data[ch];
351  const int offset = s->hop_size - fin->nb_samples;
352 
353  memmove(cache, &cache[fin->nb_samples], offset * sizeof(float));
354  memcpy(&cache[offset], input, fin->nb_samples * sizeof(float));
355  }
356 
357  if (fin && s->hop_index + fin->nb_samples < hop_size)
358  return 0;
359 
360  memset(src, 0, sizeof(float) * s->fft_size);
361  for (int n = 0; n < hop_size; n++)
362  src[n+offset].re = cache[n];
363 
364  s->tx_fn(s->fft[jobnr], dst, src, sizeof(*src));
365 
366  return 0;
367 }
368 
369 #define DRAW_BAR_COLOR(x) \
370 do { \
371  if (Y <= ht) { \
372  dstY[x] = 0; \
373  dstU[x] = 128; \
374  dstV[x] = 128; \
375  } else { \
376  float mul = (Y - ht) * bh[0]; \
377  dstY[x] = av_clip_uint8(lrintf(Y * mul * 255.f)); \
378  dstU[x] = av_clip_uint8(lrintf((U-0.5f) * 128.f + 128)); \
379  dstV[x] = av_clip_uint8(lrintf((V-0.5f) * 128.f + 128)); \
380  } \
381 } while (0)
382 
383 static void draw_bar(ShowCWTContext *s, int y,
384  float Y, float U, float V)
385 {
386  float *bh = ((float *)s->bh_out->extended_data[0]) + y;
387  const ptrdiff_t ylinesize = s->outpicref->linesize[0];
388  const ptrdiff_t ulinesize = s->outpicref->linesize[1];
389  const ptrdiff_t vlinesize = s->outpicref->linesize[2];
390  const int direction = s->direction;
391  const int bar_size = s->bar_size;
392  const float rcp_bar_h = 1.f / bar_size;
393  uint8_t *dstY, *dstU, *dstV;
394  const int w_1 = s->w - 1;
395 
396  bh[0] = 1.f / (Y + 0.0001f);
397  switch (direction) {
398  case DIRECTION_LR:
399  dstY = s->outpicref->data[0] + y * ylinesize;
400  dstU = s->outpicref->data[1] + y * ulinesize;
401  dstV = s->outpicref->data[2] + y * vlinesize;
402  for (int x = 0; x < bar_size; x++) {
403  float ht = (bar_size - x) * rcp_bar_h;
404  DRAW_BAR_COLOR(x);
405  }
406  break;
407  case DIRECTION_RL:
408  dstY = s->outpicref->data[0] + y * ylinesize;
409  dstU = s->outpicref->data[1] + y * ulinesize;
410  dstV = s->outpicref->data[2] + y * vlinesize;
411  for (int x = 0; x < bar_size; x++) {
412  float ht = x * rcp_bar_h;
413  DRAW_BAR_COLOR(w_1 - bar_size + x);
414  }
415  break;
416  case DIRECTION_UD:
417  dstY = s->outpicref->data[0] + w_1 - y;
418  dstU = s->outpicref->data[1] + w_1 - y;
419  dstV = s->outpicref->data[2] + w_1 - y;
420  for (int x = 0; x < bar_size; x++) {
421  float ht = (bar_size - x) * rcp_bar_h;
422  DRAW_BAR_COLOR(0);
423  dstY += ylinesize;
424  dstU += ulinesize;
425  dstV += vlinesize;
426  }
427  break;
428  case DIRECTION_DU:
429  dstY = s->outpicref->data[0] + w_1 - y + ylinesize * (s->h - 1 - bar_size);
430  dstU = s->outpicref->data[1] + w_1 - y + ulinesize * (s->h - 1 - bar_size);
431  dstV = s->outpicref->data[2] + w_1 - y + vlinesize * (s->h - 1 - bar_size);
432  for (int x = 0; x < bar_size; x++) {
433  float ht = x * rcp_bar_h;
434  DRAW_BAR_COLOR(0);
435  dstY += ylinesize;
436  dstU += ulinesize;
437  dstV += vlinesize;
438  }
439  break;
440  }
441 }
442 
443 static int draw(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
444 {
445  ShowCWTContext *s = ctx->priv;
446  const ptrdiff_t ylinesize = s->outpicref->linesize[0];
447  const ptrdiff_t ulinesize = s->outpicref->linesize[1];
448  const ptrdiff_t vlinesize = s->outpicref->linesize[2];
449  const ptrdiff_t alinesize = s->outpicref->linesize[3];
450  const float log_factor = 1.f/logf(s->logarithmic_basis);
451  const int count = s->frequency_band_count;
452  const int start = (count * jobnr) / nb_jobs;
453  const int end = (count * (jobnr+1)) / nb_jobs;
454  const int nb_channels = s->nb_channels;
455  const int iscale = s->intensity_scale;
456  const int ihop_index = s->ihop_index;
457  const int ihop_size = s->ihop_size;
458  const float rotation = s->rotation;
459  const int direction = s->direction;
460  uint8_t *dstY, *dstU, *dstV, *dstA;
461  const int bar_size = s->bar_size;
462  const int mode = s->mode;
463  const int w_1 = s->w - 1;
464  const int x = s->pos;
465  float Y, U, V;
466 
467  for (int y = start; y < end; y++) {
468  const AVComplexFloat *src = ((const AVComplexFloat *)s->ch_out->extended_data[y]) +
469  0 * ihop_size + ihop_index;
470 
471  switch (direction) {
472  case DIRECTION_LR:
473  case DIRECTION_RL:
474  dstY = s->outpicref->data[0] + y * ylinesize;
475  dstU = s->outpicref->data[1] + y * ulinesize;
476  dstV = s->outpicref->data[2] + y * vlinesize;
477  dstA = s->outpicref->data[3] ? s->outpicref->data[3] + y * alinesize : NULL;
478  break;
479  case DIRECTION_UD:
480  case DIRECTION_DU:
481  dstY = s->outpicref->data[0] + x * ylinesize + w_1 - y;
482  dstU = s->outpicref->data[1] + x * ulinesize + w_1 - y;
483  dstV = s->outpicref->data[2] + x * vlinesize + w_1 - y;
484  dstA = s->outpicref->data[3] ? s->outpicref->data[3] + x * alinesize + w_1 - y : NULL;
485  break;
486  }
487 
488  switch (s->slide) {
489  case SLIDE_REPLACE:
490  case SLIDE_FRAME:
491  /* nothing to do here */
492  break;
493  case SLIDE_SCROLL:
494  switch (s->direction) {
495  case DIRECTION_RL:
496  memmove(dstY, dstY + 1, w_1);
497  memmove(dstU, dstU + 1, w_1);
498  memmove(dstV, dstV + 1, w_1);
499  if (dstA != NULL)
500  memmove(dstA, dstA + 1, w_1);
501  break;
502  case DIRECTION_LR:
503  memmove(dstY + 1, dstY, w_1);
504  memmove(dstU + 1, dstU, w_1);
505  memmove(dstV + 1, dstV, w_1);
506  if (dstA != NULL)
507  memmove(dstA + 1, dstA, w_1);
508  break;
509  }
510  break;
511  }
512 
513  if (direction == DIRECTION_RL ||
514  direction == DIRECTION_LR) {
515  dstY += x;
516  dstU += x;
517  dstV += x;
518  if (dstA != NULL)
519  dstA += x;
520  }
521 
522  switch (mode) {
523  case 4:
524  {
525  const AVComplexFloat *src2 = (nb_channels > 1) ? src + ihop_size: src;
526  float z, u, v;
527 
528  z = hypotf(src[0].re + src2[0].re, src[0].im + src2[0].im);
529  u = hypotf(src[0].re, src[0].im);
530  v = hypotf(src2[0].re, src2[0].im);
531 
532  z = remap_log(s, z, iscale, log_factor);
533  u = remap_log(s, u, iscale, log_factor);
534  v = remap_log(s, v, iscale, log_factor);
535 
536  Y = z;
537  U = sinf((v - u) * M_PI_2);
538  V = sinf((u - v) * M_PI_2);
539 
540  u = U * cosf(rotation * M_PI) - V * sinf(rotation * M_PI);
541  v = U * sinf(rotation * M_PI) + V * cosf(rotation * M_PI);
542 
543  U = 0.5f + 0.5f * z * u;
544  V = 0.5f + 0.5f * z * v;
545 
546  dstY[0] = av_clip_uint8(lrintf(Y * 255.f));
547  dstU[0] = av_clip_uint8(lrintf(U * 255.f));
548  dstV[0] = av_clip_uint8(lrintf(V * 255.f));
549  if (dstA)
550  dstA[0] = dstY[0];
551 
552  if (bar_size > 0)
553  draw_bar(s, y, Y, U, V);
554  }
555  break;
556  case 3:
557  {
558  const int nb_channels = s->nb_channels;
559  const float yf = 1.f / nb_channels;
560 
561  Y = 0.f;
562  U = V = 0.5f;
563  for (int ch = 0; ch < nb_channels; ch++) {
564  const AVComplexFloat *srcn = src + ihop_size * ch;
565  float z;
566 
567  z = hypotf(srcn[0].re, srcn[0].im);
568  z = remap_log(s, z, iscale, log_factor);
569 
570  Y += z * yf;
571  U += z * yf * sinf(2.f * M_PI * (ch * yf + rotation));
572  V += z * yf * cosf(2.f * M_PI * (ch * yf + rotation));
573  }
574 
575  dstY[0] = av_clip_uint8(lrintf(Y * 255.f));
576  dstU[0] = av_clip_uint8(lrintf(U * 255.f));
577  dstV[0] = av_clip_uint8(lrintf(V * 255.f));
578  if (dstA)
579  dstA[0] = dstY[0];
580 
581  if (bar_size > 0)
582  draw_bar(s, y, Y, U, V);
583  }
584  break;
585  case 2:
586  Y = hypotf(src[0].re, src[0].im);
587  Y = remap_log(s, Y, iscale, log_factor);
588  U = atan2f(src[0].im, src[0].re);
589  U = 0.5f + 0.5f * U * Y / M_PI;
590  V = 1.f - U;
591 
592  dstY[0] = av_clip_uint8(lrintf(Y * 255.f));
593  dstU[0] = av_clip_uint8(lrintf(U * 255.f));
594  dstV[0] = av_clip_uint8(lrintf(V * 255.f));
595  if (dstA)
596  dstA[0] = dstY[0];
597  if (bar_size > 0)
598  draw_bar(s, y, Y, U, V);
599  break;
600  case 1:
601  Y = atan2f(src[0].im, src[0].re);
602  Y = 0.5f + 0.5f * Y / M_PI;
603 
604  dstY[0] = av_clip_uint8(lrintf(Y * 255.f));
605  if (dstA)
606  dstA[0] = dstY[0];
607  if (bar_size > 0)
608  draw_bar(s, y, Y, 0.5f, 0.5f);
609  break;
610  case 0:
611  Y = hypotf(src[0].re, src[0].im);
612  Y = remap_log(s, Y, iscale, log_factor);
613 
614  dstY[0] = av_clip_uint8(lrintf(Y * 255.f));
615  if (dstA)
616  dstA[0] = dstY[0];
617 
618  if (bar_size > 0)
619  draw_bar(s, y, Y, 0.5f, 0.5f);
620  break;
621  }
622  }
623 
624  return 0;
625 }
626 
627 static int run_channel_cwt(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
628 {
629  ShowCWTContext *s = ctx->priv;
630  const int ch = *(int *)arg;
631  const AVComplexFloat *fft_out = (const AVComplexFloat *)s->fft_out->extended_data[ch];
632  AVComplexFloat *isrc = (AVComplexFloat *)s->ifft_in->extended_data[jobnr];
633  AVComplexFloat *idst = (AVComplexFloat *)s->ifft_out->extended_data[jobnr];
634  const int output_padding_size = s->output_padding_size;
635  const int input_padding_size = s->input_padding_size;
636  const float scale = 1.f / input_padding_size;
637  const int ihop_size = s->ihop_size;
638  const int count = s->frequency_band_count;
639  const int start = (count * jobnr) / nb_jobs;
640  const int end = (count * (jobnr+1)) / nb_jobs;
641 
642  for (int y = start; y < end; y++) {
643  AVComplexFloat *chout = ((AVComplexFloat *)s->ch_out->extended_data[y]) + ch * ihop_size;
644  AVComplexFloat *over = ((AVComplexFloat *)s->over->extended_data[ch]) + y * ihop_size;
645  AVComplexFloat *dstx = (AVComplexFloat *)s->dst_x->extended_data[jobnr];
646  AVComplexFloat *srcx = (AVComplexFloat *)s->src_x->extended_data[jobnr];
647  const AVComplexFloat *kernel = s->kernel[y];
648  const unsigned *index = (const unsigned *)s->index;
649  const int kernel_start = s->kernel_start[y];
650  const int kernel_stop = s->kernel_stop[y];
651  const int kernel_range = kernel_stop - kernel_start + 1;
652  int offset;
653 
654  if (kernel_start >= 0) {
655  offset = 0;
656  memcpy(srcx, fft_out + kernel_start, sizeof(*fft_out) * kernel_range);
657  } else {
658  offset = -kernel_start;
659  memcpy(srcx+offset, fft_out, sizeof(*fft_out) * (kernel_range-offset));
660  memcpy(srcx, fft_out+input_padding_size-offset, sizeof(*fft_out)*offset);
661  }
662 
663  s->fdsp->vector_fmul_scalar((float *)srcx, (const float *)srcx, scale, FFALIGN(kernel_range * 2, 4));
664  s->fdsp->vector_fmul((float *)dstx, (const float *)srcx,
665  (const float *)kernel, FFALIGN(kernel_range * 2, 16));
666 
667  memset(isrc, 0, sizeof(*isrc) * output_padding_size);
668  if (offset == 0) {
669  for (int i = 0; i < kernel_range; i++) {
670  const unsigned n = index[i + kernel_start];
671 
672  isrc[n].re += dstx[i].re;
673  isrc[n].im += dstx[i].im;
674  }
675  } else {
676  for (int i = 0; i < kernel_range; i++) {
677  const unsigned n = (i-kernel_start) & (output_padding_size-1);
678 
679  isrc[n].re += dstx[i].re;
680  isrc[n].im += dstx[i].im;
681  }
682  }
683 
684  s->itx_fn(s->ifft[jobnr], idst, isrc, sizeof(*isrc));
685 
686  memcpy(chout, idst, sizeof(*chout) * ihop_size);
687  for (int n = 0; n < ihop_size; n++) {
688  chout[n].re += over[n].re;
689  chout[n].im += over[n].im;
690  }
691  memcpy(over, idst + ihop_size, sizeof(*over) * ihop_size);
692  }
693 
694  return 0;
695 }
696 
698 {
699  ShowCWTContext *s = ctx->priv;
700  const int size = s->input_padding_size;
701  const int output_sample_count = s->output_sample_count;
702  const int fsize = s->frequency_band_count;
703  int *kernel_start = s->kernel_start;
704  int *kernel_stop = s->kernel_stop;
705  unsigned *index = s->index;
706  int range_min = INT_MAX;
707  int range_max = 0, ret = 0;
708  float *tkernel;
709 
710  tkernel = av_malloc_array(size, sizeof(*tkernel));
711  if (!tkernel)
712  return AVERROR(ENOMEM);
713 
714  for (int y = 0; y < fsize; y++) {
715  AVComplexFloat *kernel = s->kernel[y];
716  int start = INT_MIN, stop = INT_MAX;
717  const float frequency = s->frequency_band[y*2];
718  const float deviation = 1.f / (s->frequency_band[y*2+1] *
719  output_sample_count);
720  const int a = FFMAX(frequency-12.f*sqrtf(1.f/deviation)-0.5f, -size);
721  const int b = FFMIN(frequency+12.f*sqrtf(1.f/deviation)-0.5f, size+a);
722  const int range = -a;
723 
724  memset(tkernel, 0, size * sizeof(*tkernel));
725  for (int n = a; n < b; n++) {
726  float ff, f = n+0.5f-frequency;
727 
728  ff = expf(-f*f*deviation);
729  tkernel[n+range] = ff;
730  }
731 
732  for (int n = a; n < b; n++) {
733  if (tkernel[n+range] != 0.f) {
734  if (tkernel[n+range] > FLT_MIN)
735  av_log(ctx, AV_LOG_DEBUG, "out of range kernel %g\n", tkernel[n+range]);
736  start = n;
737  break;
738  }
739  }
740 
741  for (int n = b; n >= a; n--) {
742  if (tkernel[n+range] != 0.f) {
743  if (tkernel[n+range] > FLT_MIN)
744  av_log(ctx, AV_LOG_DEBUG, "out of range kernel %g\n", tkernel[n+range]);
745  stop = n;
746  break;
747  }
748  }
749 
750  if (start == INT_MIN || stop == INT_MAX) {
751  ret = AVERROR(EINVAL);
752  break;
753  }
754 
755  kernel_start[y] = start;
756  kernel_stop[y] = stop;
757 
758  kernel = av_calloc(FFALIGN(stop-start+1, 16), sizeof(*kernel));
759  if (!kernel) {
760  ret = AVERROR(ENOMEM);
761  break;
762  }
763 
764  for (int n = 0; n <= stop - start; n++) {
765  kernel[n].re = tkernel[n+range+start];
766  kernel[n].im = tkernel[n+range+start];
767  }
768 
769  range_min = FFMIN(range_min, stop+1-start);
770  range_max = FFMAX(range_max, stop+1-start);
771 
772  s->kernel[y] = kernel;
773  }
774 
775  for (int n = 0; n < size; n++)
776  index[n] = n & (s->output_padding_size - 1);
777 
778  av_log(ctx, AV_LOG_DEBUG, "range_min: %d\n", range_min);
779  av_log(ctx, AV_LOG_DEBUG, "range_max: %d\n", range_max);
780 
781  av_freep(&tkernel);
782 
783  return ret;
784 }
785 
786 static int config_output(AVFilterLink *outlink)
787 {
788  AVFilterContext *ctx = outlink->src;
789  AVFilterLink *inlink = ctx->inputs[0];
790  ShowCWTContext *s = ctx->priv;
791  float maximum_frequency = fminf(s->maximum_frequency, inlink->sample_rate * 0.5f);
792  float minimum_frequency = s->minimum_frequency;
793  float scale = 1.f, factor;
794  int ret;
795 
796  if (minimum_frequency >= maximum_frequency) {
797  av_log(ctx, AV_LOG_ERROR, "min frequency (%f) >= (%f) max frequency\n",
798  minimum_frequency, maximum_frequency);
799  return AVERROR(EINVAL);
800  }
801 
802  uninit(ctx);
803 
804  s->fdsp = avpriv_float_dsp_alloc(0);
805  if (!s->fdsp)
806  return AVERROR(ENOMEM);
807 
808  switch (s->direction) {
809  case DIRECTION_LR:
810  case DIRECTION_RL:
811  s->bar_size = s->w * s->bar_ratio;
812  s->frequency_band_count = s->h;
813  break;
814  case DIRECTION_UD:
815  case DIRECTION_DU:
816  s->bar_size = s->h * s->bar_ratio;
817  s->frequency_band_count = s->w;
818  break;
819  }
820 
821  switch (s->frequency_scale) {
822  case FSCALE_LOG:
823  minimum_frequency = logf(minimum_frequency) / logf(2.f);
824  maximum_frequency = logf(maximum_frequency) / logf(2.f);
825  break;
826  case FSCALE_BARK:
827  minimum_frequency = 6.f * asinhf(minimum_frequency / 600.f);
828  maximum_frequency = 6.f * asinhf(maximum_frequency / 600.f);
829  break;
830  case FSCALE_MEL:
831  minimum_frequency = 2595.f * log10f(1.f + minimum_frequency / 700.f);
832  maximum_frequency = 2595.f * log10f(1.f + maximum_frequency / 700.f);
833  break;
834  case FSCALE_ERBS:
835  minimum_frequency = 11.17268f * logf(1.f + (46.06538f * minimum_frequency) / (minimum_frequency + 14678.49f));
836  maximum_frequency = 11.17268f * logf(1.f + (46.06538f * maximum_frequency) / (maximum_frequency + 14678.49f));
837  break;
838  case FSCALE_SQRT:
839  minimum_frequency = sqrtf(minimum_frequency);
840  maximum_frequency = sqrtf(maximum_frequency);
841  break;
842  case FSCALE_CBRT:
843  minimum_frequency = cbrtf(minimum_frequency);
844  maximum_frequency = cbrtf(maximum_frequency);
845  break;
846  case FSCALE_QDRT:
847  minimum_frequency = powf(minimum_frequency, 0.25f);
848  maximum_frequency = powf(maximum_frequency, 0.25f);
849  break;
850  }
851 
852  s->frequency_band = av_calloc(s->frequency_band_count,
853  sizeof(*s->frequency_band) * 2);
854  if (!s->frequency_band)
855  return AVERROR(ENOMEM);
856 
857  s->nb_consumed_samples = inlink->sample_rate *
858  frequency_band(s->frequency_band,
859  s->frequency_band_count, maximum_frequency - minimum_frequency,
860  minimum_frequency, s->frequency_scale, s->deviation);
861  s->nb_consumed_samples = FFMIN(s->nb_consumed_samples, 65536);
862 
863  s->nb_threads = FFMIN(s->frequency_band_count, ff_filter_get_nb_threads(ctx));
864  s->nb_channels = inlink->ch_layout.nb_channels;
865  s->old_pts = AV_NOPTS_VALUE;
866  s->eof_pts = AV_NOPTS_VALUE;
867 
868  s->input_sample_count = 1 << (32 - ff_clz(s->nb_consumed_samples));
869  s->input_padding_size = 1 << (32 - ff_clz(s->input_sample_count));
870  s->output_sample_count = FFMAX(1, av_rescale(s->input_sample_count, s->pps, inlink->sample_rate));
871  s->output_padding_size = 1 << (32 - ff_clz(s->output_sample_count));
872 
873  s->hop_size = s->input_sample_count;
874  s->ihop_size = s->output_padding_size >> 1;
875 
876  outlink->w = s->w;
877  outlink->h = s->h;
878  outlink->sample_aspect_ratio = (AVRational){1,1};
879 
880  s->fft_size = FFALIGN(s->input_padding_size, av_cpu_max_align());
881  s->ifft_size = FFALIGN(s->output_padding_size, av_cpu_max_align());
882 
883  s->fft = av_calloc(s->nb_threads, sizeof(*s->fft));
884  if (!s->fft)
885  return AVERROR(ENOMEM);
886 
887  for (int n = 0; n < s->nb_threads; n++) {
888  ret = av_tx_init(&s->fft[n], &s->tx_fn, AV_TX_FLOAT_FFT, 0, s->input_padding_size, &scale, 0);
889  if (ret < 0)
890  return ret;
891  }
892 
893  s->ifft = av_calloc(s->nb_threads, sizeof(*s->ifft));
894  if (!s->ifft)
895  return AVERROR(ENOMEM);
896 
897  for (int n = 0; n < s->nb_threads; n++) {
898  ret = av_tx_init(&s->ifft[n], &s->itx_fn, AV_TX_FLOAT_FFT, 1, s->output_padding_size, &scale, 0);
899  if (ret < 0)
900  return ret;
901  }
902 
903  s->outpicref = ff_get_video_buffer(outlink, outlink->w, outlink->h);
904  s->fft_in = ff_get_audio_buffer(inlink, s->fft_size * 2);
905  s->fft_out = ff_get_audio_buffer(inlink, s->fft_size * 2);
906  s->dst_x = av_frame_alloc();
907  s->src_x = av_frame_alloc();
908  s->kernel = av_calloc(s->frequency_band_count, sizeof(*s->kernel));
909  s->cache = ff_get_audio_buffer(inlink, s->hop_size);
910  s->over = ff_get_audio_buffer(inlink, s->frequency_band_count * 2 * s->ihop_size);
911  s->bh_out = ff_get_audio_buffer(inlink, s->frequency_band_count);
912  s->ifft_in = av_frame_alloc();
913  s->ifft_out = av_frame_alloc();
914  s->ch_out = av_frame_alloc();
915  s->index = av_calloc(s->input_padding_size, sizeof(*s->index));
916  s->kernel_start = av_calloc(s->frequency_band_count, sizeof(*s->kernel_start));
917  s->kernel_stop = av_calloc(s->frequency_band_count, sizeof(*s->kernel_stop));
918  if (!s->outpicref || !s->fft_in || !s->fft_out || !s->src_x || !s->dst_x || !s->over ||
919  !s->ifft_in || !s->ifft_out || !s->kernel_start || !s->kernel_stop || !s->ch_out ||
920  !s->cache || !s->index || !s->bh_out || !s->kernel)
921  return AVERROR(ENOMEM);
922 
923  s->ch_out->format = inlink->format;
924  s->ch_out->nb_samples = 2 * s->ihop_size * inlink->ch_layout.nb_channels;
925  s->ch_out->ch_layout.nb_channels = s->frequency_band_count;
926  ret = av_frame_get_buffer(s->ch_out, 0);
927  if (ret < 0)
928  return ret;
929 
930  s->ifft_in->format = inlink->format;
931  s->ifft_in->nb_samples = s->ifft_size * 2;
932  s->ifft_in->ch_layout.nb_channels = s->nb_threads;
933  ret = av_frame_get_buffer(s->ifft_in, 0);
934  if (ret < 0)
935  return ret;
936 
937  s->ifft_out->format = inlink->format;
938  s->ifft_out->nb_samples = s->ifft_size * 2;
939  s->ifft_out->ch_layout.nb_channels = s->nb_threads;
940  ret = av_frame_get_buffer(s->ifft_out, 0);
941  if (ret < 0)
942  return ret;
943 
944  s->src_x->format = inlink->format;
945  s->src_x->nb_samples = s->fft_size * 2;
946  s->src_x->ch_layout.nb_channels = s->nb_threads;
947  ret = av_frame_get_buffer(s->src_x, 0);
948  if (ret < 0)
949  return ret;
950 
951  s->dst_x->format = inlink->format;
952  s->dst_x->nb_samples = s->fft_size * 2;
953  s->dst_x->ch_layout.nb_channels = s->nb_threads;
954  ret = av_frame_get_buffer(s->dst_x, 0);
955  if (ret < 0)
956  return ret;
957 
958  s->outpicref->sample_aspect_ratio = (AVRational){1,1};
959 
960  for (int y = 0; y < outlink->h; y++) {
961  memset(s->outpicref->data[0] + y * s->outpicref->linesize[0], 0, outlink->w);
962  memset(s->outpicref->data[1] + y * s->outpicref->linesize[1], 128, outlink->w);
963  memset(s->outpicref->data[2] + y * s->outpicref->linesize[2], 128, outlink->w);
964  if (s->outpicref->data[3])
965  memset(s->outpicref->data[3] + y * s->outpicref->linesize[3], 0, outlink->w);
966  }
967 
968  s->outpicref->color_range = AVCOL_RANGE_JPEG;
969 
970  factor = s->input_padding_size / (float)inlink->sample_rate;
971  for (int n = 0; n < s->frequency_band_count; n++) {
972  s->frequency_band[2*n ] *= factor;
973  s->frequency_band[2*n+1] *= factor;
974  }
975 
976  av_log(ctx, AV_LOG_DEBUG, "factor: %f\n", factor);
977  av_log(ctx, AV_LOG_DEBUG, "nb_consumed_samples: %d\n", s->nb_consumed_samples);
978  av_log(ctx, AV_LOG_DEBUG, "hop_size: %d\n", s->hop_size);
979  av_log(ctx, AV_LOG_DEBUG, "ihop_size: %d\n", s->ihop_size);
980  av_log(ctx, AV_LOG_DEBUG, "input_sample_count: %d\n", s->input_sample_count);
981  av_log(ctx, AV_LOG_DEBUG, "input_padding_size: %d\n", s->input_padding_size);
982  av_log(ctx, AV_LOG_DEBUG, "output_sample_count: %d\n", s->output_sample_count);
983  av_log(ctx, AV_LOG_DEBUG, "output_padding_size: %d\n", s->output_padding_size);
984 
985  switch (s->direction) {
986  case DIRECTION_LR:
987  s->pos = s->bar_size;
988  break;
989  case DIRECTION_RL:
990  s->pos = FFMAX(0, s->w - 2 - s->bar_size);
991  break;
992  case DIRECTION_UD:
993  s->pos = s->bar_size;
994  break;
995  case DIRECTION_DU:
996  s->pos = FFMAX(0, s->h - 2 - s->bar_size);
997  break;
998  }
999 
1000  s->auto_frame_rate = av_make_q(inlink->sample_rate, s->hop_size);
1001  if (strcmp(s->rate_str, "auto")) {
1002  ret = av_parse_video_rate(&s->frame_rate, s->rate_str);
1003  } else {
1004  s->frame_rate = s->auto_frame_rate;
1005  }
1006  outlink->frame_rate = s->frame_rate;
1007  outlink->time_base = av_inv_q(outlink->frame_rate);
1008 
1009  ret = compute_kernel(ctx);
1010  if (ret < 0)
1011  return ret;
1012 
1013  return 0;
1014 }
1015 
1017 {
1018  AVFilterLink *outlink = ctx->outputs[0];
1019  AVFilterLink *inlink = ctx->inputs[0];
1020  ShowCWTContext *s = ctx->priv;
1021  const int nb_planes = 3 + (s->outpicref->data[3] != NULL);
1022  int ret;
1023 
1024  switch (s->slide) {
1025  case SLIDE_SCROLL:
1026  switch (s->direction) {
1027  case DIRECTION_UD:
1028  for (int p = 0; p < nb_planes; p++) {
1029  ptrdiff_t linesize = s->outpicref->linesize[p];
1030 
1031  for (int y = s->h - 1; y > s->bar_size; y--) {
1032  uint8_t *dst = s->outpicref->data[p] + y * linesize;
1033 
1034  memmove(dst, dst - linesize, s->w);
1035  }
1036  }
1037  break;
1038  case DIRECTION_DU:
1039  for (int p = 0; p < nb_planes; p++) {
1040  ptrdiff_t linesize = s->outpicref->linesize[p];
1041 
1042  for (int y = 0; y < s->h - 2 - s->bar_size; y++) {
1043  uint8_t *dst = s->outpicref->data[p] + y * linesize;
1044 
1045  memmove(dst, dst + linesize, s->w);
1046  }
1047  }
1048  break;
1049  }
1050  break;
1051  }
1052 
1053  ff_filter_execute(ctx, draw, NULL, NULL, s->nb_threads);
1054 
1055  switch (s->slide) {
1056  case SLIDE_REPLACE:
1057  case SLIDE_FRAME:
1058  switch (s->direction) {
1059  case DIRECTION_LR:
1060  s->pos++;
1061  if (s->pos >= s->w) {
1062  s->pos = s->bar_size;
1063  s->new_frame = 1;
1064  }
1065  break;
1066  case DIRECTION_RL:
1067  s->pos--;
1068  if (s->pos < 0) {
1069  s->pos = FFMAX(0, s->w - 2 - s->bar_size);
1070  s->new_frame = 1;
1071  }
1072  break;
1073  case DIRECTION_UD:
1074  s->pos++;
1075  if (s->pos >= s->h) {
1076  s->pos = s->bar_size;
1077  s->new_frame = 1;
1078  }
1079  break;
1080  case DIRECTION_DU:
1081  s->pos--;
1082  if (s->pos < 0) {
1083  s->pos = FFMAX(0, s->h - 2 - s->bar_size);
1084  s->new_frame = 1;
1085  }
1086  break;
1087  }
1088  break;
1089  case SLIDE_SCROLL:
1090  switch (s->direction) {
1091  case DIRECTION_UD:
1092  case DIRECTION_LR:
1093  s->pos = s->bar_size;
1094  break;
1095  case DIRECTION_RL:
1096  s->pos = FFMAX(0, s->w - 2 - s->bar_size);
1097  break;
1098  case DIRECTION_DU:
1099  s->pos = FFMAX(0, s->h - 2 - s->bar_size);
1100  break;
1101  }
1102  break;
1103  }
1104 
1105  if (s->slide == SLIDE_FRAME && s->eof) {
1106  switch (s->direction) {
1107  case DIRECTION_LR:
1108  for (int p = 0; p < nb_planes; p++) {
1109  ptrdiff_t linesize = s->outpicref->linesize[p];
1110  const int size = s->w - s->pos;
1111  const int fill = p > 0 && p < 3 ? 128 : 0;
1112  const int x = s->pos;
1113 
1114  for (int y = 0; y < s->h; y++) {
1115  uint8_t *dst = s->outpicref->data[p] + y * linesize + x;
1116 
1117  memset(dst, fill, size);
1118  }
1119  }
1120  break;
1121  case DIRECTION_RL:
1122  for (int p = 0; p < nb_planes; p++) {
1123  ptrdiff_t linesize = s->outpicref->linesize[p];
1124  const int size = s->w - s->pos;
1125  const int fill = p > 0 && p < 3 ? 128 : 0;
1126 
1127  for (int y = 0; y < s->h; y++) {
1128  uint8_t *dst = s->outpicref->data[p] + y * linesize;
1129 
1130  memset(dst, fill, size);
1131  }
1132  }
1133  break;
1134  case DIRECTION_UD:
1135  for (int p = 0; p < nb_planes; p++) {
1136  ptrdiff_t linesize = s->outpicref->linesize[p];
1137  const int fill = p > 0 && p < 3 ? 128 : 0;
1138 
1139  for (int y = s->pos; y < s->h; y++) {
1140  uint8_t *dst = s->outpicref->data[p] + y * linesize;
1141 
1142  memset(dst, fill, s->w);
1143  }
1144  }
1145  break;
1146  case DIRECTION_DU:
1147  for (int p = 0; p < nb_planes; p++) {
1148  ptrdiff_t linesize = s->outpicref->linesize[p];
1149  const int fill = p > 0 && p < 3 ? 128 : 0;
1150 
1151  for (int y = s->h - s->pos; y >= 0; y--) {
1152  uint8_t *dst = s->outpicref->data[p] + y * linesize;
1153 
1154  memset(dst, fill, s->w);
1155  }
1156  }
1157  break;
1158  }
1159  }
1160 
1161  s->new_frame = s->slide == SLIDE_FRAME && (s->new_frame || s->eof);
1162 
1163  if (s->slide != SLIDE_FRAME || s->new_frame == 1) {
1164  int64_t pts_offset = s->new_frame ? 0LL : av_rescale(s->ihop_index, s->hop_size, s->ihop_size);
1165  const int offset = (s->input_padding_size - s->hop_size) >> 1;
1166 
1167  pts_offset = av_rescale_q(pts_offset - offset, av_make_q(1, inlink->sample_rate), inlink->time_base);
1168  s->outpicref->pts = av_rescale_q(s->in_pts + pts_offset, inlink->time_base, outlink->time_base);
1169  s->outpicref->duration = 1;
1170  }
1171 
1172  s->ihop_index++;
1173  if (s->ihop_index >= s->ihop_size)
1174  s->ihop_index = s->hop_index = 0;
1175 
1176  if (s->slide == SLIDE_FRAME && s->new_frame == 0)
1177  return 1;
1178 
1179  if (s->old_pts < s->outpicref->pts) {
1180  AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
1181  if (!out)
1182  return AVERROR(ENOMEM);
1183  ret = av_frame_copy_props(out, s->outpicref);
1184  if (ret < 0)
1185  goto fail;
1186  ret = av_frame_copy(out, s->outpicref);
1187  if (ret < 0)
1188  goto fail;
1189  s->old_pts = s->outpicref->pts;
1190  s->new_frame = 0;
1191  ret = ff_filter_frame(outlink, out);
1192  if (ret <= 0)
1193  return ret;
1194 fail:
1195  av_frame_free(&out);
1196  return ret;
1197  }
1198 
1199  return 1;
1200 }
1201 
1202 static int run_channels_cwt_prepare(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
1203 {
1204  ShowCWTContext *s = ctx->priv;
1205  const int count = s->nb_channels;
1206  const int start = (count * jobnr) / nb_jobs;
1207  const int end = (count * (jobnr+1)) / nb_jobs;
1208 
1209  for (int ch = start; ch < end; ch++)
1210  run_channel_cwt_prepare(ctx, arg, jobnr, ch);
1211 
1212  return 0;
1213 }
1214 
1216 {
1217  AVFilterLink *inlink = ctx->inputs[0];
1218  AVFilterLink *outlink = ctx->outputs[0];
1219  ShowCWTContext *s = ctx->priv;
1220  int ret = 0, status;
1221  int64_t pts;
1222 
1224 
1225  if (s->outpicref) {
1226  AVFrame *fin = NULL;
1227 
1228  if (s->hop_index < s->hop_size) {
1229  if (!s->eof) {
1230  ret = ff_inlink_consume_samples(inlink, 1, s->hop_size - s->hop_index, &fin);
1231  if (ret < 0)
1232  return ret;
1233  }
1234 
1235  if (ret > 0 || s->eof) {
1237  FFMIN(s->nb_threads, s->nb_channels));
1238  if (fin) {
1239  if (s->hop_index == 0)
1240  s->in_pts = fin->pts;
1241  s->hop_index += fin->nb_samples;
1242  av_frame_free(&fin);
1243  } else {
1244  s->hop_index = s->hop_size;
1245  }
1246  }
1247  }
1248 
1249  if (s->hop_index >= s->hop_size || s->ihop_index > 0) {
1250  for (int ch = 0; ch < s->nb_channels && s->ihop_index == 0; ch++) {
1251  ff_filter_execute(ctx, run_channel_cwt, (void *)&ch, NULL,
1252  s->nb_threads);
1253  }
1254 
1255  ret = output_frame(ctx);
1256  if (ret != 1)
1257  return ret;
1258  }
1259  }
1260 
1261  if (s->eof) {
1262  if (s->slide == SLIDE_FRAME)
1263  ret = output_frame(ctx);
1264  ff_outlink_set_status(outlink, AVERROR_EOF, s->eof_pts);
1265  return ret;
1266  }
1267 
1268  if (!s->eof && ff_inlink_acknowledge_status(inlink, &status, &pts)) {
1269  if (status == AVERROR_EOF) {
1270  s->eof = 1;
1271  ff_filter_set_ready(ctx, 10);
1272  s->eof_pts = av_rescale_q(pts, inlink->time_base, outlink->time_base);
1273  return 0;
1274  }
1275  }
1276 
1277  if (ff_inlink_queued_samples(inlink) > 0 || s->ihop_index ||
1278  s->hop_index >= s->hop_size || s->eof) {
1279  ff_filter_set_ready(ctx, 10);
1280  return 0;
1281  }
1282 
1283  if (ff_outlink_frame_wanted(outlink)) {
1285  return 0;
1286  }
1287 
1288  return FFERROR_NOT_READY;
1289 }
1290 
1291 static const AVFilterPad showcwt_outputs[] = {
1292  {
1293  .name = "default",
1294  .type = AVMEDIA_TYPE_VIDEO,
1295  .config_props = config_output,
1296  },
1297 };
1298 
1300  .name = "showcwt",
1301  .description = NULL_IF_CONFIG_SMALL("Convert input audio to a CWT (Continuous Wavelet Transform) spectrum video output."),
1302  .uninit = uninit,
1303  .priv_size = sizeof(ShowCWTContext),
1307  .activate = activate,
1308  .priv_class = &showcwt_class,
1309  .flags = AVFILTER_FLAG_SLICE_THREADS,
1310 };
ShowCWTContext::dst_x
AVFrame * dst_x
Definition: avf_showcwt.c:97
formats
formats
Definition: signature.h:48
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:108
FSCALE_LINEAR
@ FSCALE_LINEAR
Definition: avf_showcwt.c:40
ISCALE_LINEAR
@ ISCALE_LINEAR
Definition: avf_showcwt.c:53
ff_get_audio_buffer
AVFrame * ff_get_audio_buffer(AVFilterLink *link, int nb_samples)
Request an audio samples buffer with a specific set of permissions.
Definition: audio.c:107
IntensityScale
IntensityScale
Definition: avf_showcwt.c:51
AV_SAMPLE_FMT_FLTP
@ AV_SAMPLE_FMT_FLTP
float, planar
Definition: samplefmt.h:66
AVFilterChannelLayouts
A list of supported channel layouts.
Definition: formats.h:85
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
ShowCWTContext::frequency_scale
int frequency_scale
Definition: avf_showcwt.c:119
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:401
DIRECTION_LR
@ DIRECTION_LR
Definition: avf_showcwt.c:61
out
FILE * out
Definition: movenc.c:54
run_channels_cwt_prepare
static int run_channels_cwt_prepare(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: avf_showcwt.c:1202
av_frame_get_buffer
int av_frame_get_buffer(AVFrame *frame, int align)
Allocate new buffer(s) for audio or video data.
Definition: frame.c:243
u
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:239
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:978
sample_fmts
static enum AVSampleFormat sample_fmts[]
Definition: adpcmenc.c:947
ff_channel_layouts_ref
int ff_channel_layouts_ref(AVFilterChannelLayouts *f, AVFilterChannelLayouts **ref)
Add *ref as a new reference to f.
Definition: formats.c:612
layouts
enum MovChannelLayoutTag * layouts
Definition: mov_chan.c:326
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
FSCALE_ERBS
@ FSCALE_ERBS
Definition: avf_showcwt.c:44
FFERROR_NOT_READY
return FFERROR_NOT_READY
Definition: filter_design.txt:204
AVTXContext
Definition: tx_priv.h:235
atan2f
#define atan2f(y, x)
Definition: libm.h:45
ShowCWTContext::input_sample_count
int input_sample_count
Definition: avf_showcwt.c:115
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
ShowCWTContext::rate_str
char * rate_str
Definition: avf_showcwt.c:79
ShowCWTContext::itx_fn
av_tx_fn itx_fn
Definition: avf_showcwt.c:83
ShowCWTContext::bar_size
int bar_size
Definition: avf_showcwt.c:124
ff_clz
#define ff_clz
Definition: intmath.h:143
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:100
ff_all_channel_counts
AVFilterChannelLayouts * ff_all_channel_counts(void)
Construct an AVFilterChannelLayouts coding for any channel layout, with known or unknown disposition.
Definition: formats.c:587
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:340
FSCALE_SQRT
@ FSCALE_SQRT
Definition: avf_showcwt.c:45
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:452
w
uint8_t w
Definition: llviddspenc.c:38
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:673
FSCALE_LOG
@ FSCALE_LOG
Definition: avf_showcwt.c:41
M_PI_2
#define M_PI_2
Definition: mathematics.h:73
ISCALE_LOG
@ ISCALE_LOG
Definition: avf_showcwt.c:52
ShowCWTContext::bh_out
AVFrame * bh_out
Definition: avf_showcwt.c:103
AVOption
AVOption.
Definition: opt.h:251
ShowCWTContext::slide
int slide
Definition: avf_showcwt.c:109
b
#define b
Definition: input.c:41
showcwt_options
static const AVOption showcwt_options[]
Definition: avf_showcwt.c:133
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:169
ShowCWTContext::nb_threads
int nb_threads
Definition: avf_showcwt.c:104
expf
#define expf(x)
Definition: libm.h:283
FLAGS
#define FLAGS
Definition: avf_showcwt.c:131
float.h
AVComplexFloat
Definition: tx.h:27
max
#define max(a, b)
Definition: cuda_runtime.h:33
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
output_frame
static int output_frame(AVFilterContext *ctx)
Definition: avf_showcwt.c:1016
video.h
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
ShowCWTContext::index
unsigned * index
Definition: avf_showcwt.c:91
ShowCWTContext::ifft_size
int ifft_size
Definition: avf_showcwt.c:84
av_tx_init
av_cold int av_tx_init(AVTXContext **ctx, av_tx_fn *tx, enum AVTXType type, int inv, int len, const void *scale, uint64_t flags)
Initialize a transform context with the given configuration (i)MDCTs with an odd length are currently...
Definition: tx.c:901
DIRECTION_RL
@ DIRECTION_RL
Definition: avf_showcwt.c:62
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
formats.h
SLIDE_REPLACE
@ SLIDE_REPLACE
Definition: avf_showcwt.c:69
AVComplexFloat::im
float im
Definition: tx.h:28
ISCALE_QDRT
@ ISCALE_QDRT
Definition: avf_showcwt.c:56
ff_avf_showcwt
const AVFilter ff_avf_showcwt
Definition: avf_showcwt.c:1299
cosf
#define cosf(x)
Definition: libm.h:78
fail
#define fail()
Definition: checkasm.h:138
log10f
#define log10f(x)
Definition: libm.h:414
NB_FSCALE
@ NB_FSCALE
Definition: avf_showcwt.c:48
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: avf_showcwt.c:182
scale
static av_always_inline float scale(float x, float s)
Definition: vf_v360.c:1389
pts
static int64_t pts
Definition: transcode_aac.c:643
ShowCWTContext::kernel_start
int * kernel_start
Definition: avf_showcwt.c:92
ShowCWTContext::output_sample_count
int output_sample_count
Definition: avf_showcwt.c:115
FSCALE_CBRT
@ FSCALE_CBRT
Definition: avf_showcwt.c:46
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:47
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:88
ShowCWTContext::frequency_band
float * frequency_band
Definition: avf_showcwt.c:89
avassert.h
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
av_tx_fn
void(* av_tx_fn)(AVTXContext *s, void *out, void *in, ptrdiff_t stride)
Function pointer to a function to perform the transform.
Definition: tx.h:151
float
float
Definition: af_crystalizer.c:121
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:1506
s
#define s(width, name)
Definition: cbs_vp9.c:198
ShowCWTContext::logarithmic_basis
float logarithmic_basis
Definition: avf_showcwt.c:117
ShowCWTContext::eof_pts
int64_t eof_pts
Definition: avf_showcwt.c:88
ShowCWTContext::frequency_band_count
int frequency_band_count
Definition: avf_showcwt.c:116
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:617
ShowCWTContext::nb_channels
int nb_channels
Definition: avf_showcwt.c:105
fminf
float fminf(float, float)
filters.h
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:297
AV_TX_FLOAT_FFT
@ AV_TX_FLOAT_FFT
Standard complex to complex FFT with sample data type of AVComplexFloat, AVComplexDouble or AVComplex...
Definition: tx.h:47
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
ctx
AVFormatContext * ctx
Definition: movenc.c:48
ShowCWTContext::maximum_frequency
float maximum_frequency
Definition: avf_showcwt.c:120
av_rescale_q
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
ShowCWTContext::direction
int direction
Definition: avf_showcwt.c:111
ShowCWTContext
Definition: avf_showcwt.c:75
ShowCWTContext::fft_in
AVFrame * fft_in
Definition: avf_showcwt.c:95
fsize
static int64_t fsize(FILE *f)
Definition: audiomatch.c:29
ShowCWTContext::ifft_out
AVFrame * ifft_out
Definition: avf_showcwt.c:100
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:192
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
ShowCWTContext::fft
AVTXContext ** fft
Definition: avf_showcwt.c:82
arg
const char * arg
Definition: jacosubdec.c:67
ShowCWTContext::deviation
float deviation
Definition: avf_showcwt.c:122
if
if(ret)
Definition: filter_design.txt:179
ShowCWTContext::ch_out
AVFrame * ch_out
Definition: avf_showcwt.c:101
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
ff_inlink_consume_samples
int ff_inlink_consume_samples(AVFilterLink *link, unsigned min, unsigned max, AVFrame **rframe)
Take samples from the link's FIFO and update the link's stats.
Definition: avfilter.c:1402
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:736
ShowCWTContext::rotation
float rotation
Definition: avf_showcwt.c:125
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
ShowCWTContext::bar_ratio
float bar_ratio
Definition: avf_showcwt.c:123
AV_OPT_TYPE_IMAGE_SIZE
@ AV_OPT_TYPE_IMAGE_SIZE
offset must point to two consecutive integers
Definition: opt.h:235
ShowCWTContext::ihop_size
int ihop_size
Definition: avf_showcwt.c:112
V
#define V
Definition: avdct.c:30
ShowCWTContext::outpicref
AVFrame * outpicref
Definition: avf_showcwt.c:94
parseutils.h
ShowCWTContext::ihop_index
int ihop_index
Definition: avf_showcwt.c:113
ShowCWTContext::cache
AVFrame * cache
Definition: avf_showcwt.c:93
ff_audio_default_filterpad
const AVFilterPad ff_audio_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_AUDIO.
Definition: audio.c:32
sqrtf
static __device__ float sqrtf(float a)
Definition: cuda_runtime.h:184
av_cpu_max_align
size_t av_cpu_max_align(void)
Get the maximum data alignment that may be required by FFmpeg.
Definition: cpu.c:268
ShowCWTContext::kernel
AVComplexFloat ** kernel
Definition: avf_showcwt.c:90
ShowCWTContext::h
int h
Definition: avf_showcwt.c:77
sinf
#define sinf(x)
Definition: libm.h:419
av_clipf
av_clipf
Definition: af_crystalizer.c:121
DIRECTION_DU
@ DIRECTION_DU
Definition: avf_showcwt.c:64
compute_kernel
static int compute_kernel(AVFilterContext *ctx)
Definition: avf_showcwt.c:697
ISCALE_CBRT
@ ISCALE_CBRT
Definition: avf_showcwt.c:55
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:1337
index
int index
Definition: gxfenc.c:89
float_dsp.h
ShowCWTContext::fft_out
AVFrame * fft_out
Definition: avf_showcwt.c:96
ShowCWTContext::over
AVFrame * over
Definition: avf_showcwt.c:102
f
f
Definition: af_crystalizer.c:121
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:106
powf
#define powf(x, y)
Definition: libm.h:50
pps
static int FUNC() pps(CodedBitstreamContext *ctx, RWContext *rw, H264RawPPS *current)
Definition: cbs_h264_syntax_template.c:404
av_frame_copy
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
Definition: frame.c:899
cpu.h
ISCALE_SQRT
@ ISCALE_SQRT
Definition: avf_showcwt.c:54
ShowCWTContext::src_x
AVFrame * src_x
Definition: avf_showcwt.c:98
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:425
run_channel_cwt
static int run_channel_cwt(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: avf_showcwt.c:627
AV_SAMPLE_FMT_NONE
@ AV_SAMPLE_FMT_NONE
Definition: samplefmt.h:56
size
int size
Definition: twinvq_data.h:10344
av_make_q
static AVRational av_make_q(int num, int den)
Create an AVRational.
Definition: rational.h:71
ShowCWTContext::in_pts
int64_t in_pts
Definition: avf_showcwt.c:86
AVComplexFloat::re
float re
Definition: tx.h:28
ShowCWTContext::maximum_intensity
float maximum_intensity
Definition: avf_showcwt.c:121
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
ShowCWTContext::intensity_scale
int intensity_scale
Definition: avf_showcwt.c:118
DIRECTION_UD
@ DIRECTION_UD
Definition: avf_showcwt.c:63
AVFloatDSPContext
Definition: float_dsp.h:24
range
enum AVColorRange range
Definition: mediacodec_wrapper.c:2646
ShowCWTContext::mode
int mode
Definition: avf_showcwt.c:78
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: avf_showcwt.c:224
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
FrequencyScale
FrequencyScale
Definition: avf_showcwt.c:39
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
ShowCWTContext::minimum_intensity
float minimum_intensity
Definition: avf_showcwt.c:121
draw_bar
static void draw_bar(ShowCWTContext *s, int y, float Y, float U, float V)
Definition: avf_showcwt.c:383
frequency_band
static float frequency_band(float *frequency_band, int frequency_band_count, float frequency_range, float frequency_offset, int frequency_scale, float deviation)
Definition: avf_showcwt.c:253
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
ShowCWTContext::ifft
AVTXContext ** ifft
Definition: avf_showcwt.c:82
input
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some input
Definition: filter_design.txt:172
M_PI
#define M_PI
Definition: mathematics.h:67
Y
#define Y
Definition: boxblur.h:37
av_tx_uninit
av_cold void av_tx_uninit(AVTXContext **ctx)
Frees a context and sets *ctx to NULL, does nothing when *ctx == NULL.
Definition: tx.c:294
NB_DIRECTION
@ NB_DIRECTION
Definition: avf_showcwt.c:65
draw
static int draw(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: avf_showcwt.c:443
internal.h
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
ShowCWTContext::nb_consumed_samples
int nb_consumed_samples
Definition: avf_showcwt.c:106
av_parse_video_rate
int av_parse_video_rate(AVRational *rate, const char *arg)
Parse str and store the detected values in *rate.
Definition: parseutils.c:181
ShowCWTContext::output_padding_size
int output_padding_size
Definition: avf_showcwt.c:114
AVFrame::nb_samples
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:420
lrintf
#define lrintf(x)
Definition: libm_mips.h:72
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:244
ShowCWTContext::kernel_stop
int * kernel_stop
Definition: avf_showcwt.c:92
run_channel_cwt_prepare
static int run_channel_cwt_prepare(AVFilterContext *ctx, void *arg, int jobnr, int ch)
Definition: avf_showcwt.c:339
AVFrame::extended_data
uint8_t ** extended_data
pointers to the data planes/channels.
Definition: frame.h:401
DirectionMode
DirectionMode
Definition: avf_showcwt.c:60
src2
const pixel * src2
Definition: h264pred_template.c:422
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:31
NB_SLIDE
@ NB_SLIDE
Definition: avf_showcwt.c:72
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:786
AVSampleFormat
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:55
value
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default value
Definition: writing_filters.txt:86
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
cbrtf
static av_always_inline float cbrtf(float x)
Definition: libm.h:61
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(showcwt)
av_inv_q
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
ShowCWTContext::tx_fn
av_tx_fn tx_fn
Definition: avf_showcwt.c:83
OFFSET
#define OFFSET(x)
Definition: avf_showcwt.c:130
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:53
ff_inlink_queued_samples
int ff_inlink_queued_samples(AVFilterLink *link)
Definition: avfilter.c:1362
av_rescale
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition: mathematics.c:129
ShowCWTContext::minimum_frequency
float minimum_frequency
Definition: avf_showcwt.c:120
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:262
activate
static int activate(AVFilterContext *ctx)
Definition: avf_showcwt.c:1215
ShowCWTContext::auto_frame_rate
AVRational auto_frame_rate
Definition: avf_showcwt.c:80
ShowCWTContext::hop_index
int hop_index
Definition: avf_showcwt.c:113
AVFilter
Filter definition.
Definition: avfilter.h:166
ret
ret
Definition: filter_design.txt:187
ShowCWTContext::frame_rate
AVRational frame_rate
Definition: avf_showcwt.c:81
NB_ISCALE
@ NB_ISCALE
Definition: avf_showcwt.c:57
ShowCWTContext::fdsp
AVFloatDSPContext * fdsp
Definition: avf_showcwt.c:127
ShowCWTContext::pos
int pos
Definition: avf_showcwt.c:85
config_output
static int config_output(AVFilterLink *outlink)
Definition: avf_showcwt.c:786
U
#define U(x)
Definition: vpx_arith.h:37
FSCALE_QDRT
@ FSCALE_QDRT
Definition: avf_showcwt.c:47
SLIDE_SCROLL
@ SLIDE_SCROLL
Definition: avf_showcwt.c:70
ShowCWTContext::fft_size
int fft_size
Definition: avf_showcwt.c:84
ShowCWTContext::pps
int pps
Definition: avf_showcwt.c:107
ff_all_samplerates
AVFilterFormats * ff_all_samplerates(void)
Definition: formats.c:572
status
ov_status_e status
Definition: dnn_backend_openvino.c:119
channel_layout.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:225
avfilter.h
DRAW_BAR_COLOR
#define DRAW_BAR_COLOR(x)
Definition: avf_showcwt.c:369
av_clip_uint8
#define av_clip_uint8
Definition: common.h:102
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:397
factor
static const int factor[16]
Definition: vf_pp7.c:78
ShowCWTContext::old_pts
int64_t old_pts
Definition: avf_showcwt.c:87
ShowCWTContext::hop_size
int hop_size
Definition: avf_showcwt.c:112
ShowCWTContext::eof
int eof
Definition: avf_showcwt.c:108
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
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
audio.h
AVFilterFormatsConfig::formats
AVFilterFormats * formats
List of supported formats (pixel or sample).
Definition: avfilter.h:505
ShowCWTContext::w
int w
Definition: avf_showcwt.c:77
FSCALE_BARK
@ FSCALE_BARK
Definition: avf_showcwt.c:42
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:193
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
avpriv_float_dsp_alloc
av_cold AVFloatDSPContext * avpriv_float_dsp_alloc(int bit_exact)
Allocate a float DSP context.
Definition: float_dsp.c:135
ShowCWTContext::new_frame
int new_frame
Definition: avf_showcwt.c:110
ShowCWTContext::input_padding_size
int input_padding_size
Definition: avf_showcwt.c:114
ShowCWTContext::ifft_in
AVFrame * ifft_in
Definition: avf_showcwt.c:99
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
h
h
Definition: vp9dsp_template.c:2038
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
FSCALE_MEL
@ FSCALE_MEL
Definition: avf_showcwt.c:43
avstring.h
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
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:144
showcwt_outputs
static const AVFilterPad showcwt_outputs[]
Definition: avf_showcwt.c:1291
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
remap_log
static float remap_log(ShowCWTContext *s, float value, int iscale, float log_factor)
Definition: avf_showcwt.c:306
SlideMode
SlideMode
Definition: avf_ahistogram.c:33
ff_filter_set_ready
void ff_filter_set_ready(AVFilterContext *filter, unsigned priority)
Mark a filter ready and schedule it for activation.
Definition: avfilter.c:216
tx.h
min
float min
Definition: vorbis_enc_data.h:429
SLIDE_FRAME
@ SLIDE_FRAME
Definition: avf_showcwt.c:71