FFmpeg
vf_zscale.c
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1 /*
2  * Copyright (c) 2015 Paul B Mahol
3  * Copyright (c) 2022 Victoria Zhislina, Intel
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * zscale video filter using z.lib library
25  */
26 
27 #include <float.h>
28 #include <stdio.h>
29 #include <string.h>
30 
31 #include <zimg.h>
32 
33 #include "avfilter.h"
34 #include "formats.h"
35 #include "internal.h"
36 #include "video.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/eval.h"
39 #include "libavutil/internal.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/parseutils.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/imgutils.h"
46 
47 #define ZIMG_ALIGNMENT 64
48 #define MIN_TILESIZE 64
49 #define MAX_THREADS 64
50 
51 static const char *const var_names[] = {
52  "in_w", "iw",
53  "in_h", "ih",
54  "out_w", "ow",
55  "out_h", "oh",
56  "a",
57  "sar",
58  "dar",
59  "hsub",
60  "vsub",
61  "ohsub",
62  "ovsub",
63  NULL
64 };
65 
66 enum var_name {
79 };
80 
81 typedef struct ZScaleContext {
82  const AVClass *class;
83 
84  /**
85  * New dimensions. Special values are:
86  * 0 = original width/height
87  * -1 = keep original aspect
88  * -N = try to keep aspect but make sure it is divisible by N
89  */
90  int w, h;
91  int dither;
92  int filter;
94  int trc;
95  int primaries;
96  int range;
97  int chromal;
99  int trc_in;
101  int range_in;
103  char *size_str;
106  double param_a;
107  double param_b;
108 
109  char *w_expr; ///< width expression string
110  char *h_expr; ///< height expression string
111 
116 
119 
120  void *tmp[MAX_THREADS]; //separate for each thread;
127 
128  zimg_image_format src_format, dst_format;
129  zimg_image_format alpha_src_format, alpha_dst_format;
130  zimg_image_format src_format_tmp, dst_format_tmp;
132  zimg_graph_builder_params alpha_params, params;
133  zimg_graph_builder_params alpha_params_tmp, params_tmp;
134  zimg_filter_graph *alpha_graph[MAX_THREADS], *graph[MAX_THREADS];
135 
136  enum AVColorSpace in_colorspace, out_colorspace;
138  enum AVColorPrimaries in_primaries, out_primaries;
139  enum AVColorRange in_range, out_range;
140  enum AVChromaLocation in_chromal, out_chromal;
141 } ZScaleContext;
142 
143 typedef struct ThreadData {
145  AVFrame *in, *out;
146 } ThreadData;
147 
149 {
150  ZScaleContext *s = ctx->priv;
151  int ret;
152  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
153  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
154  zimg_image_format_default(&s->src_format_tmp, ZIMG_API_VERSION);
155  zimg_image_format_default(&s->dst_format_tmp, ZIMG_API_VERSION);
156 
157  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
158  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
159  zimg_image_format_default(&s->alpha_src_format_tmp, ZIMG_API_VERSION);
160  zimg_image_format_default(&s->alpha_dst_format_tmp, ZIMG_API_VERSION);
161 
162  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
163  zimg_graph_builder_params_default(&s->params_tmp, ZIMG_API_VERSION);
164  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
165  zimg_graph_builder_params_default(&s->alpha_params_tmp, ZIMG_API_VERSION);
166 
167  if (s->size_str && (s->w_expr || s->h_expr)) {
169  "Size and width/height expressions cannot be set at the same time.\n");
170  return AVERROR(EINVAL);
171  }
172 
173  if (s->w_expr && !s->h_expr)
174  FFSWAP(char *, s->w_expr, s->size_str);
175 
176  if (s->size_str) {
177  char buf[32];
178  if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) {
180  "Invalid size '%s'\n", s->size_str);
181  return ret;
182  }
183  snprintf(buf, sizeof(buf)-1, "%d", s->w);
184  av_opt_set(s, "w", buf, 0);
185  snprintf(buf, sizeof(buf)-1, "%d", s->h);
186  av_opt_set(s, "h", buf, 0);
187  }
188  if (!s->w_expr)
189  av_opt_set(s, "w", "iw", 0);
190  if (!s->h_expr)
191  av_opt_set(s, "h", "ih", 0);
192 
193  return 0;
194 }
195 
197 {
198  static const enum AVPixelFormat pixel_fmts[] = {
219  };
220  int ret;
221 
222  ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->outcfg.formats);
223  if (ret < 0)
224  return ret;
225  return ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->incfg.formats);
226 }
227 
228 static void slice_params(ZScaleContext *s, int out_h, int in_h)
229 {
230  s->out_slice_start[0] = 0;
231  for (int i = 1; i < s->nb_threads; i++) {
232  int slice_end = out_h * i / s->nb_threads;
233  s->out_slice_end[i - 1] = s->out_slice_start[i] = FFALIGN(slice_end, 2);
234  }
235  s->out_slice_end[s->nb_threads - 1] = out_h;
236 
237  for (int i = 0; i < s->nb_threads; i++) {
238  s->in_slice_start[i] = s->out_slice_start[i] * in_h / (double)out_h;
239  s->in_slice_end[i] = s->out_slice_end[i] * in_h / (double)out_h;
240  }
241 }
242 
243 static int config_props(AVFilterLink *outlink)
244 {
245  AVFilterContext *ctx = outlink->src;
246  AVFilterLink *inlink = outlink->src->inputs[0];
247  ZScaleContext *s = ctx->priv;
249  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format);
250  int64_t w, h;
251  double var_values[VARS_NB], res;
252  char *expr;
253  int ret;
254  int factor_w, factor_h;
255 
256  var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
257  var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
258  var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
259  var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
260  var_values[VAR_A] = (double) inlink->w / inlink->h;
261  var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
262  (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
263  var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
264  var_values[VAR_HSUB] = 1 << desc->log2_chroma_w;
265  var_values[VAR_VSUB] = 1 << desc->log2_chroma_h;
266  var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w;
267  var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h;
268 
269  /* evaluate width and height */
270  av_expr_parse_and_eval(&res, (expr = s->w_expr),
271  var_names, var_values,
272  NULL, NULL, NULL, NULL, NULL, 0, ctx);
273  s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;
274  if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
275  var_names, var_values,
276  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
277  goto fail;
278  s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;
279  /* evaluate again the width, as it may depend on the output height */
280  if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
281  var_names, var_values,
282  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
283  goto fail;
284  s->w = res;
285 
286  w = s->w;
287  h = s->h;
288 
289  /* Check if it is requested that the result has to be divisible by a some
290  * factor (w or h = -n with n being the factor). */
291  factor_w = 1;
292  factor_h = 1;
293  if (w < -1) {
294  factor_w = -w;
295  }
296  if (h < -1) {
297  factor_h = -h;
298  }
299 
300  if (w < 0 && h < 0)
301  s->w = s->h = 0;
302 
303  if (!(w = s->w))
304  w = inlink->w;
305  if (!(h = s->h))
306  h = inlink->h;
307 
308  /* Make sure that the result is divisible by the factor we determined
309  * earlier. If no factor was set, it is nothing will happen as the default
310  * factor is 1 */
311  if (w < 0)
312  w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w;
313  if (h < 0)
314  h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h;
315 
316  /* Note that force_original_aspect_ratio may overwrite the previous set
317  * dimensions so that it is not divisible by the set factors anymore. */
318  if (s->force_original_aspect_ratio) {
319  int tmp_w = av_rescale(h, inlink->w, inlink->h);
320  int tmp_h = av_rescale(w, inlink->h, inlink->w);
321 
322  if (s->force_original_aspect_ratio == 1) {
323  w = FFMIN(tmp_w, w);
324  h = FFMIN(tmp_h, h);
325  } else {
326  w = FFMAX(tmp_w, w);
327  h = FFMAX(tmp_h, h);
328  }
329  }
330 
331  if (w > INT_MAX || h > INT_MAX ||
332  (h * inlink->w) > INT_MAX ||
333  (w * inlink->h) > INT_MAX)
334  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
335 
336  outlink->w = w;
337  outlink->h = h;
338 
339  s->first_time = 1;
340 
341  if (inlink->sample_aspect_ratio.num){
342  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
343  } else
344  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
345 
346  av_log(ctx, AV_LOG_TRACE, "w:%d h:%d fmt:%s sar:%d/%d -> w:%d h:%d fmt:%s sar:%d/%d\n",
347  inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
348  inlink->sample_aspect_ratio.num, inlink->sample_aspect_ratio.den,
349  outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format),
350  outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den);
351  return 0;
352 
353 fail:
355  "Error when evaluating the expression '%s'.\n"
356  "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n",
357  expr, s->w_expr, s->h_expr);
358  return ret;
359 }
360 
362 {
363  char err_msg[1024];
364  int err_code = zimg_get_last_error(err_msg, sizeof(err_msg));
365 
366  av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg);
367 
368  return AVERROR_EXTERNAL;
369 }
370 
371 static int convert_chroma_location(enum AVChromaLocation chroma_location)
372 {
373  switch (chroma_location) {
375  case AVCHROMA_LOC_LEFT:
376  return ZIMG_CHROMA_LEFT;
377  case AVCHROMA_LOC_CENTER:
378  return ZIMG_CHROMA_CENTER;
380  return ZIMG_CHROMA_TOP_LEFT;
381  case AVCHROMA_LOC_TOP:
382  return ZIMG_CHROMA_TOP;
384  return ZIMG_CHROMA_BOTTOM_LEFT;
385  case AVCHROMA_LOC_BOTTOM:
386  return ZIMG_CHROMA_BOTTOM;
387  }
388  return ZIMG_CHROMA_LEFT;
389 }
390 
391 static int convert_matrix(enum AVColorSpace colorspace)
392 {
393  switch (colorspace) {
394  case AVCOL_SPC_RGB:
395  return ZIMG_MATRIX_RGB;
396  case AVCOL_SPC_BT709:
397  return ZIMG_MATRIX_709;
399  return ZIMG_MATRIX_UNSPECIFIED;
400  case AVCOL_SPC_FCC:
401  return ZIMG_MATRIX_FCC;
402  case AVCOL_SPC_BT470BG:
403  return ZIMG_MATRIX_470BG;
404  case AVCOL_SPC_SMPTE170M:
405  return ZIMG_MATRIX_170M;
406  case AVCOL_SPC_SMPTE240M:
407  return ZIMG_MATRIX_240M;
408  case AVCOL_SPC_YCGCO:
409  return ZIMG_MATRIX_YCGCO;
411  return ZIMG_MATRIX_2020_NCL;
412  case AVCOL_SPC_BT2020_CL:
413  return ZIMG_MATRIX_2020_CL;
415  return ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL;
417  return ZIMG_MATRIX_CHROMATICITY_DERIVED_CL;
418  case AVCOL_SPC_ICTCP:
419  return ZIMG_MATRIX_ICTCP;
420  }
421  return ZIMG_MATRIX_UNSPECIFIED;
422 }
423 
424 static int convert_trc(enum AVColorTransferCharacteristic color_trc)
425 {
426  switch (color_trc) {
428  return ZIMG_TRANSFER_UNSPECIFIED;
429  case AVCOL_TRC_BT709:
430  return ZIMG_TRANSFER_709;
431  case AVCOL_TRC_GAMMA22:
432  return ZIMG_TRANSFER_470_M;
433  case AVCOL_TRC_GAMMA28:
434  return ZIMG_TRANSFER_470_BG;
435  case AVCOL_TRC_SMPTE170M:
436  return ZIMG_TRANSFER_601;
437  case AVCOL_TRC_SMPTE240M:
438  return ZIMG_TRANSFER_240M;
439  case AVCOL_TRC_LINEAR:
440  return ZIMG_TRANSFER_LINEAR;
441  case AVCOL_TRC_LOG:
442  return ZIMG_TRANSFER_LOG_100;
443  case AVCOL_TRC_LOG_SQRT:
444  return ZIMG_TRANSFER_LOG_316;
446  return ZIMG_TRANSFER_IEC_61966_2_4;
447  case AVCOL_TRC_BT2020_10:
448  return ZIMG_TRANSFER_2020_10;
449  case AVCOL_TRC_BT2020_12:
450  return ZIMG_TRANSFER_2020_12;
451  case AVCOL_TRC_SMPTE2084:
452  return ZIMG_TRANSFER_ST2084;
454  return ZIMG_TRANSFER_ARIB_B67;
456  return ZIMG_TRANSFER_IEC_61966_2_1;
457  }
458  return ZIMG_TRANSFER_UNSPECIFIED;
459 }
460 
462 {
463  switch (color_primaries) {
465  return ZIMG_PRIMARIES_UNSPECIFIED;
466  case AVCOL_PRI_BT709:
467  return ZIMG_PRIMARIES_709;
468  case AVCOL_PRI_BT470M:
469  return ZIMG_PRIMARIES_470_M;
470  case AVCOL_PRI_BT470BG:
471  return ZIMG_PRIMARIES_470_BG;
472  case AVCOL_PRI_SMPTE170M:
473  return ZIMG_PRIMARIES_170M;
474  case AVCOL_PRI_SMPTE240M:
475  return ZIMG_PRIMARIES_240M;
476  case AVCOL_PRI_FILM:
477  return ZIMG_PRIMARIES_FILM;
478  case AVCOL_PRI_BT2020:
479  return ZIMG_PRIMARIES_2020;
480  case AVCOL_PRI_SMPTE428:
481  return ZIMG_PRIMARIES_ST428;
482  case AVCOL_PRI_SMPTE431:
483  return ZIMG_PRIMARIES_ST431_2;
484  case AVCOL_PRI_SMPTE432:
485  return ZIMG_PRIMARIES_ST432_1;
486  case AVCOL_PRI_JEDEC_P22:
487  return ZIMG_PRIMARIES_EBU3213_E;
488  }
489  return ZIMG_PRIMARIES_UNSPECIFIED;
490 }
491 
493 {
494  switch (color_range) {
496  case AVCOL_RANGE_MPEG:
497  return ZIMG_RANGE_LIMITED;
498  case AVCOL_RANGE_JPEG:
499  return ZIMG_RANGE_FULL;
500  }
501  return ZIMG_RANGE_LIMITED;
502 }
503 
504 static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range)
505 {
506  switch (color_range) {
507  case ZIMG_RANGE_LIMITED:
508  return AVCOL_RANGE_MPEG;
509  case ZIMG_RANGE_FULL:
510  return AVCOL_RANGE_JPEG;
511  }
513 }
514 
515 /* returns 0 if image formats are the same and 1 otherwise */
516 static int compare_zimg_image_formats(zimg_image_format *img_fmt0, zimg_image_format *img_fmt1)
517 {
518  return ((img_fmt0->chroma_location != img_fmt1->chroma_location) ||
519 #if ZIMG_API_VERSION >= 0x204
520  (img_fmt0->alpha != img_fmt1->alpha) ||
521 #endif
522  (img_fmt0->color_family != img_fmt1->color_family) ||
523  (img_fmt0->color_primaries != img_fmt1->color_primaries) ||
524  (img_fmt0->depth != img_fmt1->depth) ||
525  (img_fmt0->field_parity != img_fmt1->field_parity) ||
526  (img_fmt0->height != img_fmt1->height) ||
527  (img_fmt0->matrix_coefficients != img_fmt1->matrix_coefficients) ||
528  (img_fmt0->pixel_range != img_fmt1->pixel_range) ||
529  (img_fmt0->pixel_type != img_fmt1->pixel_type) ||
530  (img_fmt0->subsample_h != img_fmt1->subsample_h) ||
531  (img_fmt0->subsample_w != img_fmt1->subsample_w) ||
532  (img_fmt0->transfer_characteristics != img_fmt1->transfer_characteristics) ||
533  (img_fmt0->width != img_fmt1->width));
534 }
535 
536 /* returns 0 if graph builder parameters are the same and 1 otherwise */
537 static int compare_zimg_graph_builder_params(zimg_graph_builder_params *parm0, zimg_graph_builder_params *parm1)
538 {
539  /* the parameters that could be changed inside a single ffmpeg zscale invocation are checked only
540  and NaN values that are default for some params are treated properly*/
541  int ret = (parm0->allow_approximate_gamma != parm1->allow_approximate_gamma) ||
542  (parm0->dither_type != parm1->dither_type) ||
543  (parm0->resample_filter != parm1->resample_filter) ||
544  (parm0->resample_filter_uv != parm1->resample_filter_uv);
545 
546  if ((isnan(parm0->nominal_peak_luminance) == 0) || (isnan(parm1->nominal_peak_luminance) == 0))
547  ret = ret || (parm0->nominal_peak_luminance != parm1->nominal_peak_luminance);
548  if ((isnan(parm0->filter_param_a) == 0) || (isnan(parm1->filter_param_a) == 0))
549  ret = ret || (parm0->filter_param_a != parm1->filter_param_a);
550  if ((isnan(parm0->filter_param_a_uv) == 0) || (isnan(parm1->filter_param_a_uv) == 0))
551  ret = ret || (parm0->filter_param_a_uv != parm1->filter_param_a_uv);
552  if ((isnan(parm0->filter_param_b) == 0) || (isnan(parm1->filter_param_b) == 0))
553  ret = ret || (parm0->filter_param_b != parm1->filter_param_b);
554  if ((isnan(parm0->filter_param_b_uv) == 0) || (isnan(parm1->filter_param_b_uv) == 0))
555  ret = ret || (parm0->filter_param_b_uv != parm1->filter_param_b_uv);
556 
557  return ret;
558 }
559 
560 static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc,
561  int colorspace, int primaries, int transfer, int range, int location)
562 {
563  format->width = frame->width;
564  format->height = frame->height;
565  format->subsample_w = desc->log2_chroma_w;
566  format->subsample_h = desc->log2_chroma_h;
567  format->depth = desc->comp[0].depth;
568  format->pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
569  format->color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
570  format->matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : colorspace == -1 ? convert_matrix(frame->colorspace) : colorspace;
571  format->color_primaries = primaries == -1 ? convert_primaries(frame->color_primaries) : primaries;
572  format->transfer_characteristics = transfer == -1 ? convert_trc(frame->color_trc) : transfer;
573  format->pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : range == -1 ? convert_range(frame->color_range) : range;
574  format->chroma_location = location == -1 ? convert_chroma_location(frame->chroma_location) : location;
575 }
576 
577 static int graphs_build(AVFrame *in, AVFrame *out, const AVPixFmtDescriptor *desc, const AVPixFmtDescriptor *out_desc,
578  AVFilterContext *ctx, int job_nr, int n_jobs)
579 {
580  ZScaleContext *s = ctx->priv;
581  int ret;
582  size_t size;
583  zimg_image_format src_format;
584  zimg_image_format dst_format;
585  zimg_image_format alpha_src_format;
586  zimg_image_format alpha_dst_format;
587  const double in_slice_start = s->in_slice_start[job_nr];
588  const double in_slice_end = s->in_slice_end[job_nr];
589  const int out_slice_start = s->out_slice_start[job_nr];
590  const int out_slice_end = s->out_slice_end[job_nr];
591 
592  src_format = s->src_format;
593  dst_format = s->dst_format;
594  /* The input slice is specified through the active_region field,
595  unlike the output slice.
596  according to zimg requirements input and output slices should have even dimensions */
597  src_format.active_region.width = in->width;
598  src_format.active_region.height = in_slice_end - in_slice_start;
599  src_format.active_region.left = 0;
600  src_format.active_region.top = in_slice_start;
601  //dst now is the single tile only!!
602  dst_format.width = out->width;
603  dst_format.height = out_slice_end - out_slice_start;
604 
605  if (s->graph[job_nr]) {
606  zimg_filter_graph_free(s->graph[job_nr]);
607  }
608  s->graph[job_nr] = zimg_filter_graph_build(&src_format, &dst_format, &s->params);
609  if (!s->graph[job_nr])
610  return print_zimg_error(ctx);
611 
612  ret = zimg_filter_graph_get_tmp_size(s->graph[job_nr], &size);
613  if (ret)
614  return print_zimg_error(ctx);
615 
616  if (s->tmp[job_nr])
617  av_freep(&s->tmp[job_nr]);
618  s->tmp[job_nr] = av_calloc(size, 1);
619  if (!s->tmp[job_nr])
620  return AVERROR(ENOMEM);
621 
622  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && out_desc->flags & AV_PIX_FMT_FLAG_ALPHA) {
623  alpha_src_format = s->alpha_src_format;
624  alpha_dst_format = s->alpha_dst_format;
625  /* The input slice is specified through the active_region field, unlike the output slice.
626  according to zimg requirements input and output slices should have even dimentions */
627  alpha_src_format.active_region.width = in->width;
628  alpha_src_format.active_region.height = in_slice_end - in_slice_start;
629  alpha_src_format.active_region.left = 0;
630  alpha_src_format.active_region.top = in_slice_start;
631  //dst now is the single tile only!!
632  alpha_dst_format.width = out->width;
633  alpha_dst_format.height = out_slice_end - out_slice_start;
634 
635  if (s->alpha_graph[job_nr]) {
636  zimg_filter_graph_free(s->alpha_graph[job_nr]);
637  }
638  s->alpha_graph[job_nr] = zimg_filter_graph_build(&alpha_src_format, &alpha_dst_format, &s->alpha_params);
639  if (!s->alpha_graph[job_nr])
640  return print_zimg_error(ctx);
641  }
642  return 0;
643 }
644 
645 static int realign_frame(const AVPixFmtDescriptor *desc, AVFrame **frame, int needs_copy)
646 {
647  AVFrame *aligned = NULL;
648  int ret = 0, plane, planes;
649 
650  /* Realign any unaligned input frame. */
651  planes = av_pix_fmt_count_planes(desc->nb_components);
652  for (plane = 0; plane < planes; plane++) {
653  int p = desc->comp[plane].plane;
654  if ((uintptr_t)(*frame)->data[p] % ZIMG_ALIGNMENT || (*frame)->linesize[p] % ZIMG_ALIGNMENT) {
655  if (!(aligned = av_frame_alloc())) {
656  ret = AVERROR(ENOMEM);
657  goto fail;
658  }
659 
660  aligned->format = (*frame)->format;
661  aligned->width = (*frame)->width;
662  aligned->height = (*frame)->height;
663 
665  goto fail;
666 
667  if (needs_copy && (ret = av_frame_copy(aligned, *frame)) < 0)
668  goto fail;
669 
670  if (needs_copy && (ret = av_frame_copy_props(aligned, *frame)) < 0)
671  goto fail;
672 
674  *frame = aligned;
675  return 0;
676  }
677  }
678 
679 fail:
681  return ret;
682 }
683 
685 {
686  if (s->colorspace != -1)
687  frame->colorspace = (int)s->dst_format.matrix_coefficients;
688 
689  if (s->primaries != -1)
690  frame->color_primaries = (int)s->dst_format.color_primaries;
691 
692  if (s->range != -1)
693  frame->color_range = convert_range_from_zimg(s->dst_format.pixel_range);
694 
695  if (s->trc != -1)
696  frame->color_trc = (int)s->dst_format.transfer_characteristics;
697 
698  if (s->chromal != -1)
699  frame->chroma_location = (int)s->dst_format.chroma_location + 1;
700 }
701 
702 static int filter_slice(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
703 {
704  ThreadData *td = data;
705  int ret = 0;
706  int p;
707  int need_gb;
708  ZScaleContext *s = ctx->priv;
709  zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
710  zimg_image_buffer dst_buf = { ZIMG_API_VERSION };
711  const int out_slice_start = s->out_slice_start[job_nr];
712 
713  /* create zimg filter graphs for each thread
714  only if not created earlier or there is some change in frame parameters */
715  need_gb = compare_zimg_image_formats(&s->src_format, &s->src_format_tmp) ||
716  compare_zimg_image_formats(&s->dst_format, &s->dst_format_tmp) ||
717  compare_zimg_graph_builder_params(&s->params, &s->params_tmp);
718  if(td->desc->flags & AV_PIX_FMT_FLAG_ALPHA && td->odesc->flags & AV_PIX_FMT_FLAG_ALPHA)
719  need_gb = need_gb || compare_zimg_image_formats(&s->alpha_src_format, &s->alpha_src_format_tmp) ||
720  compare_zimg_image_formats(&s->alpha_dst_format, &s->alpha_dst_format_tmp) ||
721  compare_zimg_graph_builder_params(&s->alpha_params, &s->alpha_params_tmp);
722 
723  if (need_gb){
724  ret = graphs_build(td->in, td->out, td->desc, td->odesc, ctx, job_nr, n_jobs);
725  if (ret < 0)
726  return print_zimg_error(ctx);
727  }
728  for (int i = 0; i < 3; i++) {
729  const int vsamp = i >= 1 ? td->odesc->log2_chroma_h : 0;
730 
731  p = td->desc->comp[i].plane;
732 
733  src_buf.plane[i].data = td->in->data[p];
734  src_buf.plane[i].stride = td->in->linesize[p];
735  src_buf.plane[i].mask = -1;
736 
737  p = td->odesc->comp[i].plane;
738  dst_buf.plane[i].data = td->out->data[p] + td->out->linesize[p] * (out_slice_start >> vsamp);
739  dst_buf.plane[i].stride = td->out->linesize[p];
740  dst_buf.plane[i].mask = -1;
741  }
742  if (!s->graph[job_nr])
743  return AVERROR(EINVAL);
744  ret = zimg_filter_graph_process(s->graph[job_nr], &src_buf, &dst_buf, s->tmp[job_nr], 0, 0, 0, 0);
745  if (ret)
746  return print_zimg_error(ctx);
747 
748  if (td->desc->flags & AV_PIX_FMT_FLAG_ALPHA && td->odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
749  src_buf.plane[0].data = td->in->data[3];
750  src_buf.plane[0].stride = td->in->linesize[3];
751  src_buf.plane[0].mask = -1;
752 
753  dst_buf.plane[0].data = td->out->data[3] + td->out->linesize[3] * out_slice_start;
754  dst_buf.plane[0].stride = td->out->linesize[3];
755  dst_buf.plane[0].mask = -1;
756 
757  if (!s->alpha_graph[job_nr])
758  return AVERROR(EINVAL);
759  ret = zimg_filter_graph_process(s->alpha_graph[job_nr], &src_buf, &dst_buf, s->tmp[job_nr], 0, 0, 0, 0);
760  if (ret)
761  return print_zimg_error(ctx);
762  }
763  return 0;
764 }
765 
767 {
768  AVFilterContext *ctx = link->dst;
769  ZScaleContext *s = ctx->priv;
770  AVFilterLink *outlink = ctx->outputs[0];
772  const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format);
773  char buf[32];
774  int ret = 0;
775  AVFrame *out = NULL;
776  ThreadData td;
777 
778  //we need to use this filter if something is different for an input and output only
779  //otherwise - just copy the input frame to the output
780  if ((link->format != outlink->format) ||
781  (link->w != outlink->w) ||
782  (link->h != outlink->h) ||
783  s->first_time ||
784  (s->src_format.chroma_location != s->dst_format.chroma_location) ||
785  (s->src_format.color_family !=s->dst_format.color_family) ||
786  (s->src_format.color_primaries !=s->dst_format.color_primaries) ||
787  (s->src_format.depth !=s->dst_format.depth) ||
788  (s->src_format.matrix_coefficients !=s->dst_format.matrix_coefficients) ||
789  (s->src_format.field_parity !=s->dst_format.field_parity) ||
790  (s->src_format.pixel_range !=s->dst_format.pixel_range) ||
791  (s->src_format.pixel_type !=s->dst_format.pixel_type) ||
792  (s->src_format.transfer_characteristics !=s->dst_format.transfer_characteristics)
793  ){
794  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
795  if (!out) {
796  ret = AVERROR(ENOMEM);
797  goto fail;
798  }
799 
800  if ((ret = realign_frame(odesc, &out, 0)) < 0)
801  goto fail;
802 
804 
805  if ((ret = realign_frame(desc, &in, 1)) < 0)
806  goto fail;
807 
808  snprintf(buf, sizeof(buf)-1, "%d", outlink->w);
809  av_opt_set(s, "w", buf, 0);
810  snprintf(buf, sizeof(buf)-1, "%d", outlink->h);
811  av_opt_set(s, "h", buf, 0);
812 
813  link->dst->inputs[0]->format = in->format;
814  link->dst->inputs[0]->w = in->width;
815  link->dst->inputs[0]->h = in->height;
816 
817  s->nb_threads = av_clip(FFMIN(ff_filter_get_nb_threads(ctx), FFMIN(link->h, outlink->h) / MIN_TILESIZE), 1, MAX_THREADS);
818  s->in_colorspace = in->colorspace;
819  s->in_trc = in->color_trc;
820  s->in_primaries = in->color_primaries;
821  s->in_range = in->color_range;
822  s->out_colorspace = out->colorspace;
823  s->out_trc = out->color_trc;
824  s->out_primaries = out->color_primaries;
825  s->out_range = out->color_range;
826 
827  slice_params(s, out->height, in->height);
828 
829  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
830  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
831  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
832 
833  format_init(&s->src_format, in, desc, s->colorspace_in,
834  s->primaries_in, s->trc_in, s->range_in, s->chromal_in);
835  format_init(&s->dst_format, out, odesc, s->colorspace,
836  s->primaries, s->trc, s->range, s->chromal);
837  s->first_time = 0;
838 
839  s->params.dither_type = s->dither;
840  s->params.cpu_type = ZIMG_CPU_AUTO_64B;
841  s->params.resample_filter = s->filter;
842  s->params.resample_filter_uv = s->filter;
843  s->params.nominal_peak_luminance = s->nominal_peak_luminance;
844  s->params.allow_approximate_gamma = s->approximate_gamma;
845  s->params.filter_param_a = s->params.filter_param_a_uv = s->param_a;
846  s->params.filter_param_b = s->params.filter_param_b_uv = s->param_b;
847 
848  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
849  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
850  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
851  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
852 
853  s->alpha_params.dither_type = s->dither;
854  s->alpha_params.cpu_type = ZIMG_CPU_AUTO_64B;
855  s->alpha_params.resample_filter = s->filter;
856 
857  s->alpha_src_format.width = in->width;
858  s->alpha_src_format.height = in->height;
859  s->alpha_src_format.depth = desc->comp[0].depth;
860  s->alpha_src_format.pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
861  s->alpha_src_format.color_family = ZIMG_COLOR_GREY;
862 
863  s->alpha_dst_format.depth = odesc->comp[0].depth;
864  s->alpha_dst_format.pixel_type = (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
865  s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
866  }
867 
869  av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
870  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
871  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
872  INT_MAX);
873 
874  td.in = in;
875  td.out = out;
876  td.desc = desc;
877  td.odesc = odesc;
878 
879  memset(s->jobs_ret, 0, s->nb_threads * sizeof(*s->jobs_ret));
880  ret = ff_filter_execute(ctx, filter_slice, &td, s->jobs_ret, s->nb_threads);
881  for (int i = 0; ret >= 0 && i < s->nb_threads; i++)
882  if (s->jobs_ret[i] < 0)
883  ret = s->jobs_ret[i];
884  if (ret < 0) {
885  av_frame_free(&in);
886  av_frame_free(&out);
887  return ret;
888  }
889 
890  s->src_format_tmp = s->src_format;
891  s->dst_format_tmp = s->dst_format;
892  s->params_tmp = s->params;
893  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
894  s->alpha_src_format_tmp = s->alpha_src_format;
895  s->alpha_dst_format_tmp = s->alpha_dst_format;
896  s->alpha_params_tmp = s->alpha_params;
897  }
898 
899  if ((!(desc->flags & AV_PIX_FMT_FLAG_ALPHA)) && (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) ){
900  int x, y;
901  if (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) {
902  for (y = 0; y < out->height; y++) {
903  for (x = 0; x < out->width; x++) {
904  AV_WN32(out->data[3] + x * odesc->comp[3].step + y * out->linesize[3],
905  av_float2int(1.0f));
906  }
907  }
908  } else {
909  for (y = 0; y < outlink->h; y++)
910  memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w);
911  }
912  }
913  } else {
914  /*no need for any filtering */
915  return ff_filter_frame(outlink, in);
916  }
917 fail:
918  av_frame_free(&in);
919  if (ret) {
920  av_frame_free(&out);
921  return ret;
922  }
923 
924  return ff_filter_frame(outlink, out);
925 }
926 
928 {
929  ZScaleContext *s = ctx->priv;
930 
931  for (int i = 0; i < s->nb_threads; i++) {
932  av_freep(&s->tmp[i]);
933  if (s->graph[i]) {
934  zimg_filter_graph_free(s->graph[i]);
935  s->graph[i] = NULL;
936  }
937  if (s->alpha_graph[i]) {
938  zimg_filter_graph_free(s->alpha_graph[i]);
939  s->alpha_graph[i] = NULL;
940  }
941  }
942 }
943 
944 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
945  char *res, int res_len, int flags)
946 {
947  ZScaleContext *s = ctx->priv;
948  int ret;
949 
950  if ( !strcmp(cmd, "width") || !strcmp(cmd, "w")
951  || !strcmp(cmd, "height") || !strcmp(cmd, "h")) {
952 
953  int old_w = s->w;
954  int old_h = s->h;
955  AVFilterLink *outlink = ctx->outputs[0];
956 
957  av_opt_set(s, cmd, args, 0);
958  if ((ret = config_props(outlink)) < 0) {
959  s->w = old_w;
960  s->h = old_h;
961  }
962  } else
963  ret = AVERROR(ENOSYS);
964 
965  return ret;
966 }
967 
968 #define OFFSET(x) offsetof(ZScaleContext, x)
969 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
970 #define TFLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
971 
972 static const AVOption zscale_options[] = {
973  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
974  { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
975  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
976  { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
977  { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
978  { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
979  { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
980  { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
981  { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, "dither" },
982  { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, "dither" },
983  { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, "dither" },
984  { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, "dither" },
985  { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
986  { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
987  { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, "filter" },
988  { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, "filter" },
989  { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, "filter" },
990  { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, "filter" },
991  { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, "filter" },
992  { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, "filter" },
993  { "out_range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
994  { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
995  { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
996  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
997  { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
998  { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
999  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
1000  { "tv", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
1001  { "pc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
1002  { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1003  { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1004  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "primaries" },
1005  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
1006  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
1007  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
1008  { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
1009  { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
1010  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
1011  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
1012  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_M}, 0, 0, FLAGS, "primaries" },
1013  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_BG}, 0, 0, FLAGS, "primaries" },
1014  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
1015  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
1016  { "film", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_FILM}, 0, 0, FLAGS, "primaries" },
1017  { "bt2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
1018  { "smpte428", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST428}, 0, 0, FLAGS, "primaries" },
1019  { "smpte431", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST431_2}, 0, 0, FLAGS, "primaries" },
1020  { "smpte432", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST432_1}, 0, 0, FLAGS, "primaries" },
1021  { "jedec-p22", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" },
1022  { "ebu3213", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" },
1023  { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1024  { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1025  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "transfer" },
1026  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
1027  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
1028  { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
1029  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
1030  { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
1031  { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
1032  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
1033  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_M}, 0, 0, FLAGS, "transfer" },
1034  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_BG}, 0, 0, FLAGS, "transfer" },
1035  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
1036  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_240M}, 0, 0, FLAGS, "transfer" },
1037  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
1038  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
1039  { "log100", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_100}, 0, 0, FLAGS, "transfer" },
1040  { "log316", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_316}, 0, 0, FLAGS, "transfer" },
1041  { "bt2020-10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
1042  { "bt2020-12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
1043  { "smpte2084", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ST2084}, 0, 0, FLAGS, "transfer" },
1044  { "iec61966-2-4", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_4},0, 0, FLAGS, "transfer" },
1045  { "iec61966-2-1", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_1},0, 0, FLAGS, "transfer" },
1046  { "arib-std-b67", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ARIB_B67}, 0, 0, FLAGS, "transfer" },
1047  { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1048  { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1049  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "matrix" },
1050  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
1051  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
1052  { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
1053  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
1054  { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
1055  { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
1056  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
1057  { "gbr", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_RGB}, 0, 0, FLAGS, "matrix" },
1058  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
1059  { "fcc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_FCC}, 0, 0, FLAGS, "matrix" },
1060  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
1061  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
1062  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_240M}, 0, 0, FLAGS, "matrix" },
1063  { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, "matrix" },
1064  { "bt2020nc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
1065  { "bt2020c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
1066  { "chroma-derived-nc",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL}, 0, 0, FLAGS, "matrix" },
1067  { "chroma-derived-c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_CL}, 0, 0, FLAGS, "matrix" },
1068  { "ictcp", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_ICTCP}, 0, 0, FLAGS, "matrix" },
1069  { "in_range", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1070  { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1071  { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1072  { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1073  { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1074  { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1075  { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1076  { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1077  { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1078  { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1079  { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1080  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "chroma" },
1081  { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, "chroma" },
1082  { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, "chroma" },
1083  { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, "chroma" },
1084  { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, "chroma" },
1085  { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, "chroma" },
1086  { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, "chroma" },
1087  { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1088  { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1089  { "npl", "set nominal peak luminance", OFFSET(nominal_peak_luminance), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, 0, DBL_MAX, FLAGS },
1090  { "agamma", "allow approximate gamma", OFFSET(approximate_gamma), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
1091  { "param_a", "parameter A, which is parameter \"b\" for bicubic, "
1092  "and the number of filter taps for lanczos", OFFSET(param_a), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
1093  { "param_b", "parameter B, which is parameter \"c\" for bicubic", OFFSET(param_b), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
1094  { NULL }
1095 };
1096 
1097 AVFILTER_DEFINE_CLASS(zscale);
1098 
1100  {
1101  .name = "default",
1102  .type = AVMEDIA_TYPE_VIDEO,
1103  .filter_frame = filter_frame,
1104  },
1105 };
1106 
1108  {
1109  .name = "default",
1110  .type = AVMEDIA_TYPE_VIDEO,
1111  .config_props = config_props,
1112  },
1113 };
1114 
1116  .name = "zscale",
1117  .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."),
1118  .init = init,
1119  .priv_size = sizeof(ZScaleContext),
1120  .priv_class = &zscale_class,
1121  .uninit = uninit,
1125  .process_command = process_command,
1126  .flags = AVFILTER_FLAG_SLICE_THREADS,
1127 };
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:101
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:502
AVFrame::color_trc
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:582
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:481
AVFrame::color_range
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:578
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
av_clip
#define av_clip
Definition: common.h:95
ZScaleContext::jobs_ret
int jobs_ret[MAX_THREADS]
Definition: vf_zscale.c:122
ZScaleContext::range_in
int range_in
Definition: vf_zscale.c:101
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:380
ZScaleContext::colorspace_in
int colorspace_in
Definition: vf_zscale.c:98
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:558
convert_range_from_zimg
static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range)
Definition: vf_zscale.c:504
ThreadData::odesc
const AVPixFmtDescriptor * odesc
Definition: vf_zscale.c:144
out
FILE * out
Definition: movenc.c:54
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:259
ZScaleContext::out_slice_end
int out_slice_end[MAX_THREADS]
Definition: vf_zscale.c:126
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_zscale.c:927
ZScaleContext::params_tmp
zimg_graph_builder_params params_tmp
Definition: vf_zscale.c:133
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1009
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2888
AVCOL_TRC_LINEAR
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:567
AVCHROMA_LOC_BOTTOM
@ AVCHROMA_LOC_BOTTOM
Definition: pixfmt.h:687
ZScaleContext::h_expr
char * h_expr
height expression string
Definition: vf_zscale.c:110
ZScaleContext::filter
int filter
Definition: vf_zscale.c:92
ZIMG_ALIGNMENT
#define ZIMG_ALIGNMENT
Definition: vf_zscale.c:47
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
AV_PIX_FMT_FLAG_FLOAT
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
Definition: pixdesc.h:158
AVFrame::color_primaries
enum AVColorPrimaries color_primaries
Definition: frame.h:580
ZScaleContext::alpha_params_tmp
zimg_graph_builder_params alpha_params_tmp
Definition: vf_zscale.c:133
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:116
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:494
AVFrame::colorspace
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:589
ZScaleContext::chromal
int chromal
Definition: vf_zscale.c:97
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
VAR_VSUB
@ VAR_VSUB
Definition: vf_zscale.c:75
pixdesc.h
TFLAGS
#define TFLAGS
Definition: vf_zscale.c:970
var_names
static const char *const var_names[]
Definition: vf_zscale.c:51
AVFrame::width
int width
Definition: frame.h:397
config_props
static int config_props(AVFilterLink *outlink)
Definition: vf_zscale.c:243
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:501
w
uint8_t w
Definition: llviddspenc.c:38
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:661
ZScaleContext::colorspace
int colorspace
Definition: vf_zscale.c:93
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:496
ZScaleContext::alpha_src_format
zimg_image_format alpha_src_format
Definition: vf_zscale.c:129
AVOption
AVOption.
Definition: opt.h:251
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:561
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:167
data
const char data[16]
Definition: mxf.c:146
AVComponentDescriptor::step
int step
Number of elements between 2 horizontally consecutive pixels.
Definition: pixdesc.h:40
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:459
AVCOL_PRI_JEDEC_P22
@ AVCOL_PRI_JEDEC_P22
Definition: pixfmt.h:550
format_init
static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc, int colorspace, int primaries, int transfer, int range, int location)
Definition: vf_zscale.c:560
ThreadData::desc
const AVPixFmtDescriptor * desc
Definition: vf_tonemap.c:177
AVCOL_SPC_RGB
@ AVCOL_SPC_RGB
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB), YZX and ST 428-1
Definition: pixfmt.h:588
float.h
AVCOL_TRC_BT2020_12
@ AVCOL_TRC_BT2020_12
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:574
pixel_fmts
static enum AVPixelFormat pixel_fmts[]
Definition: vf_amplify.c:53
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
mathematics.h
filter
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
Definition: filter_design.txt:228
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
zscale_options
static const AVOption zscale_options[]
Definition: vf_zscale.c:972
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:533
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:175
av_float2int
static av_always_inline uint32_t av_float2int(float f)
Reinterpret a float as a 32-bit integer.
Definition: intfloat.h:50
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:473
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:154
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:497
ZScaleContext::h
int h
Definition: vf_zscale.c:90
AVCOL_SPC_BT2020_CL
@ AVCOL_SPC_BT2020_CL
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:599
ZScaleContext::out_chromal
enum AVChromaLocation in_chromal out_chromal
Definition: vf_zscale.c:140
ZScaleContext::primaries
int primaries
Definition: vf_zscale.c:95
ZScaleContext::nb_threads
int nb_threads
Definition: vf_zscale.c:121
ZScaleContext::in_h_chr_pos
int in_h_chr_pos
Definition: vf_zscale.c:114
formats.h
ZScaleContext::param_b
double param_b
Definition: vf_zscale.c:107
VAR_OUT_W
@ VAR_OUT_W
Definition: vf_zscale.c:69
AVFrame::chroma_location
enum AVChromaLocation chroma_location
Definition: frame.h:591
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2928
AVCOL_SPC_BT470BG
@ AVCOL_SPC_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
Definition: pixfmt.h:593
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:493
convert_primaries
static int convert_primaries(enum AVColorPrimaries color_primaries)
Definition: vf_zscale.c:461
ZScaleContext::out_slice_start
int out_slice_start[MAX_THREADS]
Definition: vf_zscale.c:125
ZScaleContext::dst_format
zimg_image_format dst_format
Definition: vf_zscale.c:128
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:477
AVCOL_TRC_IEC61966_2_1
@ AVCOL_TRC_IEC61966_2_1
IEC 61966-2-1 (sRGB or sYCC)
Definition: pixfmt.h:572
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
ZScaleContext::src_format
zimg_image_format src_format
Definition: vf_zscale.c:128
fail
#define fail()
Definition: checkasm.h:134
ZScaleContext::out_primaries
enum AVColorPrimaries in_primaries out_primaries
Definition: vf_zscale.c:138
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:475
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:503
ZScaleContext::range
int range
Definition: vf_zscale.c:96
VAR_OW
@ VAR_OW
Definition: vf_zscale.c:69
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:457
AVCOL_TRC_GAMMA28
@ AVCOL_TRC_GAMMA28
also ITU-R BT470BG
Definition: pixfmt.h:564
convert_matrix
static int convert_matrix(enum AVColorSpace colorspace)
Definition: vf_zscale.c:391
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_zscale.c:196
ZScaleContext::alpha_params
zimg_graph_builder_params alpha_params
Definition: vf_zscale.c:132
av_opt_set
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:487
AVCOL_TRC_LOG_SQRT
@ AVCOL_TRC_LOG_SQRT
"Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"
Definition: pixfmt.h:569
av_reduce
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
AVRational::num
int num
Numerator.
Definition: rational.h:59
AVCOL_TRC_GAMMA22
@ AVCOL_TRC_GAMMA22
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:563
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_zscale.c:944
VAR_SAR
@ VAR_SAR
Definition: vf_zscale.c:72
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:104
compare_zimg_graph_builder_params
static int compare_zimg_graph_builder_params(zimg_graph_builder_params *parm0, zimg_graph_builder_params *parm1)
Definition: vf_zscale.c:537
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:462
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:276
aligned
static int aligned(int val)
Definition: dashdec.c:168
ZScaleContext::tmp
void * tmp[MAX_THREADS]
Definition: vf_zscale.c:120
AV_LOG_TRACE
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:206
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_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:471
ZScaleContext::graph
zimg_filter_graph * graph[MAX_THREADS]
Definition: vf_zscale.c:134
ZScaleContext::alpha_dst_format_tmp
zimg_image_format alpha_dst_format_tmp
Definition: vf_zscale.c:131
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
ZScaleContext::param_a
double param_a
Definition: vf_zscale.c:106
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:256
AVCHROMA_LOC_TOP
@ AVCHROMA_LOC_TOP
Definition: pixfmt.h:685
ZScaleContext
Definition: vf_zscale.c:81
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
graphs_build
static int graphs_build(AVFrame *in, AVFrame *out, const AVPixFmtDescriptor *desc, const AVPixFmtDescriptor *out_desc, AVFilterContext *ctx, int job_nr, int n_jobs)
Definition: vf_zscale.c:577
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:472
ZScaleContext::force_original_aspect_ratio
int force_original_aspect_ratio
Definition: vf_zscale.c:118
format
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 format(the sample packing is implied by the sample format) and sample rate. The lists are not just lists
AVCOL_SPC_SMPTE170M
@ AVCOL_SPC_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
Definition: pixfmt.h:594
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:227
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:596
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2010
ZScaleContext::src_format_tmp
zimg_image_format src_format_tmp
Definition: vf_zscale.c:130
var_name
var_name
Definition: noise_bsf.c:46
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:456
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:470
AV_PIX_FMT_FLAG_ALPHA
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:147
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AVCOL_PRI_SMPTE428
@ AVCOL_PRI_SMPTE428
SMPTE ST 428-1 (CIE 1931 XYZ)
Definition: pixfmt.h:545
ZScaleContext::first_time
int first_time
Definition: vf_zscale.c:117
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
VAR_A
@ VAR_A
Definition: vf_zscale.c:71
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
ZScaleContext::dst_format_tmp
zimg_image_format dst_format_tmp
Definition: vf_zscale.c:130
AVCOL_PRI_SMPTE240M
@ AVCOL_PRI_SMPTE240M
identical to above, also called "SMPTE C" even though it uses D65
Definition: pixfmt.h:542
planes
static const struct @345 planes[]
color_range
color_range
Definition: vf_selectivecolor.c:44
ZScaleContext::in_slice_start
double in_slice_start[MAX_THREADS]
Definition: vf_zscale.c:123
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:536
NAN
#define NAN
Definition: mathematics.h:64
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
link
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 link
Definition: filter_design.txt:23
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
AVCOL_SPC_CHROMA_DERIVED_CL
@ AVCOL_SPC_CHROMA_DERIVED_CL
Chromaticity-derived constant luminance system.
Definition: pixfmt.h:602
AVCOL_PRI_BT470BG
@ AVCOL_PRI_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:540
AVCOL_PRI_SMPTE170M
@ AVCOL_PRI_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:541
if
if(ret)
Definition: filter_design.txt:179
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:478
ZScaleContext::params
zimg_graph_builder_params params
Definition: vf_zscale.c:132
print_zimg_error
static int print_zimg_error(AVFilterContext *ctx)
Definition: vf_zscale.c:361
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:603
ZScaleContext::out_range
enum AVColorRange in_range out_range
Definition: vf_zscale.c:139
realign_frame
static int realign_frame(const AVPixFmtDescriptor *desc, AVFrame **frame, int needs_copy)
Definition: vf_zscale.c:645
FLAGS
#define FLAGS
Definition: vf_zscale.c:969
AVCHROMA_LOC_LEFT
@ AVCHROMA_LOC_LEFT
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:682
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
AVCHROMA_LOC_TOPLEFT
@ AVCHROMA_LOC_TOPLEFT
ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2.
Definition: pixfmt.h:684
AVCOL_TRC_IEC61966_2_4
@ AVCOL_TRC_IEC61966_2_4
IEC 61966-2-4.
Definition: pixfmt.h:570
isnan
#define isnan(x)
Definition: libm.h:340
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
compare_zimg_image_formats
static int compare_zimg_image_formats(zimg_image_format *img_fmt0, zimg_image_format *img_fmt1)
Definition: vf_zscale.c:516
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:423
AVCOL_PRI_BT709
@ AVCOL_PRI_BT709
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP 177 Annex B
Definition: pixfmt.h:535
parseutils.h
slice_params
static void slice_params(ZScaleContext *s, int out_h, int in_h)
Definition: vf_zscale.c:228
convert_range
static int convert_range(enum AVColorRange color_range)
Definition: vf_zscale.c:492
ZScaleContext::out_v_chr_pos
int out_v_chr_pos
Definition: vf_zscale.c:113
double
double
Definition: af_crystalizer.c:132
AVCOL_TRC_BT2020_10
@ AVCOL_TRC_BT2020_10
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:573
AVCOL_SPC_YCGCO
@ AVCOL_SPC_YCGCO
used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16
Definition: pixfmt.h:596
ZScaleContext::dither
int dither
Definition: vf_zscale.c:91
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:460
update_output_color_information
static void update_output_color_information(ZScaleContext *s, AVFrame *frame)
Definition: vf_zscale.c:684
ff_vf_zscale
const AVFilter ff_vf_zscale
Definition: vf_zscale.c:1115
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:474
AVPixFmtDescriptor::flags
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:94
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:627
AVCOL_PRI_BT2020
@ AVCOL_PRI_BT2020
ITU-R BT2020.
Definition: pixfmt.h:544
color_primaries
static const AVColorPrimariesDesc color_primaries[AVCOL_PRI_NB]
Definition: csp.c:71
AVCOL_TRC_SMPTE2084
@ AVCOL_TRC_SMPTE2084
SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems.
Definition: pixfmt.h:575
AVCOL_PRI_SMPTE431
@ AVCOL_PRI_SMPTE431
SMPTE ST 431-2 (2011) / DCI P3.
Definition: pixfmt.h:547
ZScaleContext::in_v_chr_pos
int in_v_chr_pos
Definition: vf_zscale.c:115
eval.h
f
f
Definition: af_crystalizer.c:122
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:115
av_expr_parse_and_eval
int av_expr_parse_and_eval(double *d, const char *s, const char *const *const_names, const double *const_values, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), void *opaque, int log_offset, void *log_ctx)
Parse and evaluate an expression.
Definition: eval.c:776
AVCOL_TRC_SMPTE240M
@ AVCOL_TRC_SMPTE240M
Definition: pixfmt.h:566
AVCOL_PRI_FILM
@ AVCOL_PRI_FILM
colour filters using Illuminant C
Definition: pixfmt.h:543
AV_WN32
#define AV_WN32(p, v)
Definition: intreadwrite.h:376
MAX_THREADS
#define MAX_THREADS
Definition: vf_zscale.c:49
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:136
av_frame_copy
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
Definition: frame.c:771
AVCOL_TRC_LOG
@ AVCOL_TRC_LOG
"Logarithmic transfer characteristic (100:1 range)"
Definition: pixfmt.h:568
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:488
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:464
size
int size
Definition: twinvq_data.h:10344
ZScaleContext::primaries_in
int primaries_in
Definition: vf_zscale.c:100
ZScaleContext::approximate_gamma
int approximate_gamma
Definition: vf_zscale.c:105
ZScaleContext::alpha_dst_format
zimg_image_format alpha_dst_format
Definition: vf_zscale.c:129
VAR_OHSUB
@ VAR_OHSUB
Definition: vf_zscale.c:76
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:466
filter_slice
static int filter_slice(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
Definition: vf_zscale.c:702
AVCHROMA_LOC_UNSPECIFIED
@ AVCHROMA_LOC_UNSPECIFIED
Definition: pixfmt.h:681
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:412
VAR_IN_W
@ VAR_IN_W
Definition: vf_zscale.c:67
avfilter_vf_zscale_outputs
static const AVFilterPad avfilter_vf_zscale_outputs[]
Definition: vf_zscale.c:1107
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
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:498
AVERROR_EXTERNAL
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:59
av_parse_video_size
int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
Parse str and put in width_ptr and height_ptr the detected values.
Definition: parseutils.c:150
VARS_NB
@ VARS_NB
Definition: vf_zscale.c:78
AVCOL_SPC_CHROMA_DERIVED_NCL
@ AVCOL_SPC_CHROMA_DERIVED_NCL
Chromaticity-derived non-constant luminance system.
Definition: pixfmt.h:601
VAR_HSUB
@ VAR_HSUB
Definition: vf_zscale.c:74
AVCOL_TRC_BT709
@ AVCOL_TRC_BT709
also ITU-R BT1361
Definition: pixfmt.h:560
internal.h
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:680
AVCOL_SPC_SMPTE240M
@ AVCOL_SPC_SMPTE240M
derived from 170M primaries and D65 white point, 170M is derived from BT470 System M's primaries
Definition: pixfmt.h:595
ZScaleContext::in_slice_end
double in_slice_end[MAX_THREADS]
Definition: vf_zscale.c:124
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
AVCOL_SPC_BT2020_NCL
@ AVCOL_SPC_BT2020_NCL
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:598
filter_frame
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_zscale.c:766
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:476
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:587
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:793
ZScaleContext::out_colorspace
enum AVColorSpace in_colorspace out_colorspace
Definition: vf_zscale.c:136
ThreadData
Used for passing data between threads.
Definition: dsddec.c:69
VAR_IW
@ VAR_IW
Definition: vf_zscale.c:67
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
ZScaleContext::w
int w
New dimensions.
Definition: vf_zscale.c:90
ZScaleContext::trc
int trc
Definition: vf_zscale.c:94
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
VAR_OH
@ VAR_OH
Definition: vf_zscale.c:70
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:590
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
ZScaleContext::chromal_in
int chromal_in
Definition: vf_zscale.c:102
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:644
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:272
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:458
AVFilter
Filter definition.
Definition: avfilter.h:171
VAR_IH
@ VAR_IH
Definition: vf_zscale.c:68
AVCOL_PRI_BT470M
@ AVCOL_PRI_BT470M
also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:538
ret
ret
Definition: filter_design.txt:187
ZScaleContext::trc_in
int trc_in
Definition: vf_zscale.c:99
ZScaleContext::size_str
char * size_str
Definition: vf_zscale.c:103
FFSWAP
#define FFSWAP(type, a, b)
Definition: macros.h:52
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:495
convert_chroma_location
static int convert_chroma_location(enum AVChromaLocation chroma_location)
Definition: vf_zscale.c:371
AVFrame::sample_aspect_ratio
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:427
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:463
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:468
AVFrame::height
int height
Definition: frame.h:397
AVCOL_TRC_ARIB_STD_B67
@ AVCOL_TRC_ARIB_STD_B67
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:579
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_zscale.c:148
AVCHROMA_LOC_CENTER
@ AVCHROMA_LOC_CENTER
MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0.
Definition: pixfmt.h:683
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AVCOL_SPC_FCC
@ AVCOL_SPC_FCC
FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:592
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:489
VAR_IN_H
@ VAR_IN_H
Definition: vf_zscale.c:68
VAR_OVSUB
@ VAR_OVSUB
Definition: vf_zscale.c:77
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:105
AVCOL_TRC_SMPTE170M
@ AVCOL_TRC_SMPTE170M
also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
Definition: pixfmt.h:565
av_mul_q
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
OFFSET
#define OFFSET(x)
Definition: vf_zscale.c:968
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
ZScaleContext::alpha_graph
zimg_filter_graph * alpha_graph[MAX_THREADS]
Definition: vf_zscale.c:134
AVFilterContext
An instance of a filter.
Definition: avfilter.h:415
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
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:127
desc
const char * desc
Definition: libsvtav1.c:83
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
MIN_TILESIZE
#define MIN_TILESIZE
Definition: vf_zscale.c:48
convert_trc
static int convert_trc(enum AVColorTransferCharacteristic color_trc)
Definition: vf_zscale.c:424
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
AVCOL_PRI_SMPTE432
@ AVCOL_PRI_SMPTE432
SMPTE ST 432-1 (2010) / P3 D65 / Display P3.
Definition: pixfmt.h:548
ZScaleContext::alpha_src_format_tmp
zimg_image_format alpha_src_format_tmp
Definition: vf_zscale.c:131
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
VAR_DAR
@ VAR_DAR
Definition: vf_zscale.c:73
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(zscale)
ZScaleContext::nominal_peak_luminance
double nominal_peak_luminance
Definition: vf_zscale.c:104
ZScaleContext::out_trc
enum AVColorTransferCharacteristic in_trc out_trc
Definition: vf_zscale.c:137
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:469
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:142
AVCOL_SPC_BT709
@ AVCOL_SPC_BT709
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / derived in SMPTE RP 177 Annex B
Definition: pixfmt.h:589
AVColorRange
AVColorRange
Visual content value range.
Definition: pixfmt.h:626
int
int
Definition: ffmpeg_filter.c:156
AVCOL_SPC_ICTCP
@ AVCOL_SPC_ICTCP
ITU-R BT.2100-0, ICtCp.
Definition: pixfmt.h:603
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
snprintf
#define snprintf
Definition: snprintf.h:34
VAR_OUT_H
@ VAR_OUT_H
Definition: vf_zscale.c:70
ZScaleContext::out_h_chr_pos
int out_h_chr_pos
Definition: vf_zscale.c:112
AVCHROMA_LOC_BOTTOMLEFT
@ AVCHROMA_LOC_BOTTOMLEFT
Definition: pixfmt.h:686
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
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:467
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2808
ZScaleContext::w_expr
char * w_expr
width expression string
Definition: vf_zscale.c:109
avfilter_vf_zscale_inputs
static const AVFilterPad avfilter_vf_zscale_inputs[]
Definition: vf_zscale.c:1099
dither
static const uint8_t dither[8][8]
Definition: vf_fspp.c:58