FFmpeg  4.3.7
vf_zscale.c
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1 /*
2  * Copyright (c) 2015 Paul B Mahol
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * zscale video filter using z.lib library
24  */
25 
26 #include <float.h>
27 #include <stdio.h>
28 #include <string.h>
29 
30 #include <zimg.h>
31 
32 #include "avfilter.h"
33 #include "formats.h"
34 #include "internal.h"
35 #include "video.h"
36 #include "libavutil/avstring.h"
37 #include "libavutil/eval.h"
38 #include "libavutil/internal.h"
39 #include "libavutil/intreadwrite.h"
40 #include "libavutil/mathematics.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/parseutils.h"
43 #include "libavutil/pixdesc.h"
44 #include "libavutil/imgutils.h"
45 #include "libavutil/avassert.h"
46 
47 #define ZIMG_ALIGNMENT 32
48 
49 static const char *const var_names[] = {
50  "in_w", "iw",
51  "in_h", "ih",
52  "out_w", "ow",
53  "out_h", "oh",
54  "a",
55  "sar",
56  "dar",
57  "hsub",
58  "vsub",
59  "ohsub",
60  "ovsub",
61  NULL
62 };
63 
64 enum var_name {
77 };
78 
79 typedef struct ZScaleContext {
80  const AVClass *class;
81 
82  /**
83  * New dimensions. Special values are:
84  * 0 = original width/height
85  * -1 = keep original aspect
86  * -N = try to keep aspect but make sure it is divisible by N
87  */
88  int w, h;
89  int dither;
90  int filter;
92  int trc;
93  int primaries;
94  int range;
95  int chromal;
97  int trc_in;
99  int range_in;
101  char *size_str;
104 
105  char *w_expr; ///< width expression string
106  char *h_expr; ///< height expression string
107 
112 
114 
115  void *tmp;
116  size_t tmp_size;
117 
118  zimg_image_format src_format, dst_format;
119  zimg_image_format alpha_src_format, alpha_dst_format;
120  zimg_graph_builder_params alpha_params, params;
121  zimg_filter_graph *alpha_graph, *graph;
122 
123  enum AVColorSpace in_colorspace, out_colorspace;
125  enum AVColorPrimaries in_primaries, out_primaries;
126  enum AVColorRange in_range, out_range;
127  enum AVChromaLocation in_chromal, out_chromal;
128 } ZScaleContext;
129 
131 {
132  ZScaleContext *s = ctx->priv;
133  int ret;
134 
135  if (s->size_str && (s->w_expr || s->h_expr)) {
136  av_log(ctx, AV_LOG_ERROR,
137  "Size and width/height expressions cannot be set at the same time.\n");
138  return AVERROR(EINVAL);
139  }
140 
141  if (s->w_expr && !s->h_expr)
142  FFSWAP(char *, s->w_expr, s->size_str);
143 
144  if (s->size_str) {
145  char buf[32];
146  if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) {
147  av_log(ctx, AV_LOG_ERROR,
148  "Invalid size '%s'\n", s->size_str);
149  return ret;
150  }
151  snprintf(buf, sizeof(buf)-1, "%d", s->w);
152  av_opt_set(s, "w", buf, 0);
153  snprintf(buf, sizeof(buf)-1, "%d", s->h);
154  av_opt_set(s, "h", buf, 0);
155  }
156  if (!s->w_expr)
157  av_opt_set(s, "w", "iw", 0);
158  if (!s->h_expr)
159  av_opt_set(s, "h", "ih", 0);
160 
161  return 0;
162 }
163 
165 {
166  static const enum AVPixelFormat pixel_fmts[] = {
187  };
188  int ret;
189 
190  ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->out_formats);
191  if (ret < 0)
192  return ret;
193  return ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->in_formats);
194 }
195 
196 static int config_props(AVFilterLink *outlink)
197 {
198  AVFilterContext *ctx = outlink->src;
199  AVFilterLink *inlink = outlink->src->inputs[0];
200  ZScaleContext *s = ctx->priv;
202  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format);
203  int64_t w, h;
204  double var_values[VARS_NB], res;
205  char *expr;
206  int ret;
207  int factor_w, factor_h;
208 
209  var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
210  var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
211  var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
212  var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
213  var_values[VAR_A] = (double) inlink->w / inlink->h;
214  var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
215  (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
216  var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
217  var_values[VAR_HSUB] = 1 << desc->log2_chroma_w;
218  var_values[VAR_VSUB] = 1 << desc->log2_chroma_h;
219  var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w;
220  var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h;
221 
222  /* evaluate width and height */
223  av_expr_parse_and_eval(&res, (expr = s->w_expr),
224  var_names, var_values,
225  NULL, NULL, NULL, NULL, NULL, 0, ctx);
226  s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;
227  if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
228  var_names, var_values,
229  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
230  goto fail;
231  s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;
232  /* evaluate again the width, as it may depend on the output height */
233  if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
234  var_names, var_values,
235  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
236  goto fail;
237  s->w = res;
238 
239  w = s->w;
240  h = s->h;
241 
242  /* Check if it is requested that the result has to be divisible by a some
243  * factor (w or h = -n with n being the factor). */
244  factor_w = 1;
245  factor_h = 1;
246  if (w < -1) {
247  factor_w = -w;
248  }
249  if (h < -1) {
250  factor_h = -h;
251  }
252 
253  if (w < 0 && h < 0)
254  s->w = s->h = 0;
255 
256  if (!(w = s->w))
257  w = inlink->w;
258  if (!(h = s->h))
259  h = inlink->h;
260 
261  /* Make sure that the result is divisible by the factor we determined
262  * earlier. If no factor was set, it is nothing will happen as the default
263  * factor is 1 */
264  if (w < 0)
265  w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w;
266  if (h < 0)
267  h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h;
268 
269  /* Note that force_original_aspect_ratio may overwrite the previous set
270  * dimensions so that it is not divisible by the set factors anymore. */
272  int tmp_w = av_rescale(h, inlink->w, inlink->h);
273  int tmp_h = av_rescale(w, inlink->h, inlink->w);
274 
275  if (s->force_original_aspect_ratio == 1) {
276  w = FFMIN(tmp_w, w);
277  h = FFMIN(tmp_h, h);
278  } else {
279  w = FFMAX(tmp_w, w);
280  h = FFMAX(tmp_h, h);
281  }
282  }
283 
284  if (w > INT_MAX || h > INT_MAX ||
285  (h * inlink->w) > INT_MAX ||
286  (w * inlink->h) > INT_MAX)
287  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
288 
289  outlink->w = w;
290  outlink->h = h;
291 
292  if (inlink->w == outlink->w &&
293  inlink->h == outlink->h &&
294  inlink->format == outlink->format)
295  ;
296  else {
297  }
298 
299  if (inlink->sample_aspect_ratio.num){
300  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
301  } else
302  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
303 
304  av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d fmt:%s sar:%d/%d -> w:%d h:%d fmt:%s sar:%d/%d\n",
305  inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
307  outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format),
308  outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den);
309  return 0;
310 
311 fail:
312  av_log(ctx, AV_LOG_ERROR,
313  "Error when evaluating the expression '%s'.\n"
314  "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n",
315  expr, s->w_expr, s->h_expr);
316  return ret;
317 }
318 
320 {
321  char err_msg[1024];
322  int err_code = zimg_get_last_error(err_msg, sizeof(err_msg));
323 
324  av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg);
325 
326  return AVERROR_EXTERNAL;
327 }
328 
329 static int convert_chroma_location(enum AVChromaLocation chroma_location)
330 {
331  switch (chroma_location) {
333  case AVCHROMA_LOC_LEFT:
334  return ZIMG_CHROMA_LEFT;
335  case AVCHROMA_LOC_CENTER:
336  return ZIMG_CHROMA_CENTER;
338  return ZIMG_CHROMA_TOP_LEFT;
339  case AVCHROMA_LOC_TOP:
340  return ZIMG_CHROMA_TOP;
342  return ZIMG_CHROMA_BOTTOM_LEFT;
343  case AVCHROMA_LOC_BOTTOM:
344  return ZIMG_CHROMA_BOTTOM;
345  }
346  return ZIMG_CHROMA_LEFT;
347 }
348 
350 {
351  switch (colorspace) {
352  case AVCOL_SPC_RGB:
353  return ZIMG_MATRIX_RGB;
354  case AVCOL_SPC_BT709:
355  return ZIMG_MATRIX_709;
357  return ZIMG_MATRIX_UNSPECIFIED;
358  case AVCOL_SPC_FCC:
359  return ZIMG_MATRIX_FCC;
360  case AVCOL_SPC_BT470BG:
361  return ZIMG_MATRIX_470BG;
362  case AVCOL_SPC_SMPTE170M:
363  return ZIMG_MATRIX_170M;
364  case AVCOL_SPC_SMPTE240M:
365  return ZIMG_MATRIX_240M;
366  case AVCOL_SPC_YCGCO:
367  return ZIMG_MATRIX_YCGCO;
369  return ZIMG_MATRIX_2020_NCL;
370  case AVCOL_SPC_BT2020_CL:
371  return ZIMG_MATRIX_2020_CL;
373  return ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL;
375  return ZIMG_MATRIX_CHROMATICITY_DERIVED_CL;
376  case AVCOL_SPC_ICTCP:
377  return ZIMG_MATRIX_ICTCP;
378  }
379  return ZIMG_MATRIX_UNSPECIFIED;
380 }
381 
382 static int convert_trc(enum AVColorTransferCharacteristic color_trc)
383 {
384  switch (color_trc) {
386  return ZIMG_TRANSFER_UNSPECIFIED;
387  case AVCOL_TRC_BT709:
388  return ZIMG_TRANSFER_709;
389  case AVCOL_TRC_GAMMA22:
390  return ZIMG_TRANSFER_470_M;
391  case AVCOL_TRC_GAMMA28:
392  return ZIMG_TRANSFER_470_BG;
393  case AVCOL_TRC_SMPTE170M:
394  return ZIMG_TRANSFER_601;
395  case AVCOL_TRC_SMPTE240M:
396  return ZIMG_TRANSFER_240M;
397  case AVCOL_TRC_LINEAR:
398  return ZIMG_TRANSFER_LINEAR;
399  case AVCOL_TRC_LOG:
400  return ZIMG_TRANSFER_LOG_100;
401  case AVCOL_TRC_LOG_SQRT:
402  return ZIMG_TRANSFER_LOG_316;
404  return ZIMG_TRANSFER_IEC_61966_2_4;
405  case AVCOL_TRC_BT2020_10:
406  return ZIMG_TRANSFER_2020_10;
407  case AVCOL_TRC_BT2020_12:
408  return ZIMG_TRANSFER_2020_12;
409  case AVCOL_TRC_SMPTE2084:
410  return ZIMG_TRANSFER_ST2084;
412  return ZIMG_TRANSFER_ARIB_B67;
414  return ZIMG_TRANSFER_IEC_61966_2_1;
415  }
416  return ZIMG_TRANSFER_UNSPECIFIED;
417 }
418 
420 {
421  switch (color_primaries) {
423  return ZIMG_PRIMARIES_UNSPECIFIED;
424  case AVCOL_PRI_BT709:
425  return ZIMG_PRIMARIES_709;
426  case AVCOL_PRI_BT470M:
427  return ZIMG_PRIMARIES_470_M;
428  case AVCOL_PRI_BT470BG:
429  return ZIMG_PRIMARIES_470_BG;
430  case AVCOL_PRI_SMPTE170M:
431  return ZIMG_PRIMARIES_170M;
432  case AVCOL_PRI_SMPTE240M:
433  return ZIMG_PRIMARIES_240M;
434  case AVCOL_PRI_FILM:
435  return ZIMG_PRIMARIES_FILM;
436  case AVCOL_PRI_BT2020:
437  return ZIMG_PRIMARIES_2020;
438  case AVCOL_PRI_SMPTE428:
439  return ZIMG_PRIMARIES_ST428;
440  case AVCOL_PRI_SMPTE431:
441  return ZIMG_PRIMARIES_ST431_2;
442  case AVCOL_PRI_SMPTE432:
443  return ZIMG_PRIMARIES_ST432_1;
444  case AVCOL_PRI_JEDEC_P22:
445  return ZIMG_PRIMARIES_EBU3213_E;
446  }
447  return ZIMG_PRIMARIES_UNSPECIFIED;
448 }
449 
451 {
452  switch (color_range) {
454  case AVCOL_RANGE_MPEG:
455  return ZIMG_RANGE_LIMITED;
456  case AVCOL_RANGE_JPEG:
457  return ZIMG_RANGE_FULL;
458  }
459  return ZIMG_RANGE_LIMITED;
460 }
461 
462 static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc,
463  int colorspace, int primaries, int transfer, int range, int location)
464 {
465  format->width = frame->width;
466  format->height = frame->height;
467  format->subsample_w = desc->log2_chroma_w;
468  format->subsample_h = desc->log2_chroma_h;
469  format->depth = desc->comp[0].depth;
470  format->pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
471  format->color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
472  format->matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : colorspace == -1 ? convert_matrix(frame->colorspace) : colorspace;
473  format->color_primaries = primaries == -1 ? convert_primaries(frame->color_primaries) : primaries;
474  format->transfer_characteristics = transfer == - 1 ? convert_trc(frame->color_trc) : transfer;
475  format->pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : range == -1 ? convert_range(frame->color_range) : range;
476  format->chroma_location = location == -1 ? convert_chroma_location(frame->chroma_location) : location;
477 }
478 
479 static int graph_build(zimg_filter_graph **graph, zimg_graph_builder_params *params,
480  zimg_image_format *src_format, zimg_image_format *dst_format,
481  void **tmp, size_t *tmp_size)
482 {
483  int ret;
484  size_t size;
485 
486  zimg_filter_graph_free(*graph);
487  *graph = zimg_filter_graph_build(src_format, dst_format, params);
488  if (!*graph)
489  return print_zimg_error(NULL);
490 
491  ret = zimg_filter_graph_get_tmp_size(*graph, &size);
492  if (ret)
493  return print_zimg_error(NULL);
494 
495  if (size > *tmp_size) {
496  av_freep(tmp);
497  *tmp = av_malloc(size);
498  if (!*tmp)
499  return AVERROR(ENOMEM);
500 
501  *tmp_size = size;
502  }
503 
504  return 0;
505 }
506 
508 {
509  AVFrame *aligned = NULL;
510  int ret = 0, plane;
511 
512  /* Realign any unaligned input frame. */
513  for (plane = 0; plane < 3; plane++) {
514  int p = desc->comp[plane].plane;
515  if ((uintptr_t)(*frame)->data[p] % ZIMG_ALIGNMENT || (*frame)->linesize[p] % ZIMG_ALIGNMENT) {
516  if (!(aligned = av_frame_alloc())) {
517  ret = AVERROR(ENOMEM);
518  goto fail;
519  }
520 
521  aligned->format = (*frame)->format;
522  aligned->width = (*frame)->width;
523  aligned->height = (*frame)->height;
524 
525  if ((ret = av_frame_get_buffer(aligned, ZIMG_ALIGNMENT)) < 0)
526  goto fail;
527 
528  if ((ret = av_frame_copy(aligned, *frame)) < 0)
529  goto fail;
530 
531  if ((ret = av_frame_copy_props(aligned, *frame)) < 0)
532  goto fail;
533 
534  av_frame_free(frame);
535  *frame = aligned;
536  return 0;
537  }
538  }
539 
540 fail:
541  av_frame_free(&aligned);
542  return ret;
543 }
544 
545 static int filter_frame(AVFilterLink *link, AVFrame *in)
546 {
547  ZScaleContext *s = link->dst->priv;
548  AVFilterLink *outlink = link->dst->outputs[0];
550  const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format);
551  zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
552  zimg_image_buffer dst_buf = { ZIMG_API_VERSION };
553  char buf[32];
554  int ret = 0, plane;
555  AVFrame *out = NULL;
556 
557  if ((ret = realign_frame(desc, &in)) < 0)
558  goto fail;
559 
560  if (!(out = ff_get_video_buffer(outlink, outlink->w, outlink->h))) {
561  ret = AVERROR(ENOMEM);
562  goto fail;
563  }
564 
565  av_frame_copy_props(out, in);
566  out->width = outlink->w;
567  out->height = outlink->h;
568 
569  if( in->width != link->w
570  || in->height != link->h
571  || in->format != link->format
572  || s->in_colorspace != in->colorspace
573  || s->in_trc != in->color_trc
574  || s->in_primaries != in->color_primaries
575  || s->in_range != in->color_range
576  || s->out_colorspace != out->colorspace
577  || s->out_trc != out->color_trc
578  || s->out_primaries != out->color_primaries
579  || s->out_range != out->color_range
580  || s->in_chromal != in->chroma_location
581  || s->out_chromal != out->chroma_location) {
582  snprintf(buf, sizeof(buf)-1, "%d", outlink->w);
583  av_opt_set(s, "w", buf, 0);
584  snprintf(buf, sizeof(buf)-1, "%d", outlink->h);
585  av_opt_set(s, "h", buf, 0);
586 
587  link->dst->inputs[0]->format = in->format;
588  link->dst->inputs[0]->w = in->width;
589  link->dst->inputs[0]->h = in->height;
590 
591  if ((ret = config_props(outlink)) < 0)
592  goto fail;
593 
594  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
595  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
596  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
597 
598  s->params.dither_type = s->dither;
599  s->params.cpu_type = ZIMG_CPU_AUTO;
600  s->params.resample_filter = s->filter;
601  s->params.resample_filter_uv = s->filter;
602  s->params.nominal_peak_luminance = s->nominal_peak_luminance;
603  s->params.allow_approximate_gamma = s->approximate_gamma;
604 
605  format_init(&s->src_format, in, desc, s->colorspace_in,
606  s->primaries_in, s->trc_in, s->range_in, s->chromal_in);
607  format_init(&s->dst_format, out, odesc, s->colorspace,
608  s->primaries, s->trc, s->range, s->chromal);
609 
610  if (s->colorspace != -1)
611  out->colorspace = (int)s->dst_format.matrix_coefficients;
612 
613  if (s->primaries != -1)
614  out->color_primaries = (int)s->dst_format.color_primaries;
615 
616  if (s->range != -1)
617  out->color_range = (int)s->dst_format.pixel_range + 1;
618 
619  if (s->trc != -1)
620  out->color_trc = (int)s->dst_format.transfer_characteristics;
621 
622  if (s->chromal != -1)
623  out->chroma_location = (int)s->dst_format.chroma_location - 1;
624 
625  ret = graph_build(&s->graph, &s->params, &s->src_format, &s->dst_format,
626  &s->tmp, &s->tmp_size);
627  if (ret < 0)
628  goto fail;
629 
630  s->in_colorspace = in->colorspace;
631  s->in_trc = in->color_trc;
632  s->in_primaries = in->color_primaries;
633  s->in_range = in->color_range;
634  s->out_colorspace = out->colorspace;
635  s->out_trc = out->color_trc;
636  s->out_primaries = out->color_primaries;
637  s->out_range = out->color_range;
638 
639  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
640  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
641  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
642  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
643 
644  s->alpha_params.dither_type = s->dither;
645  s->alpha_params.cpu_type = ZIMG_CPU_AUTO;
646  s->alpha_params.resample_filter = s->filter;
647 
648  s->alpha_src_format.width = in->width;
649  s->alpha_src_format.height = in->height;
650  s->alpha_src_format.depth = desc->comp[0].depth;
651  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;
652  s->alpha_src_format.color_family = ZIMG_COLOR_GREY;
653 
654  s->alpha_dst_format.width = out->width;
655  s->alpha_dst_format.height = out->height;
656  s->alpha_dst_format.depth = odesc->comp[0].depth;
657  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;
658  s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
659 
660  zimg_filter_graph_free(s->alpha_graph);
661  s->alpha_graph = zimg_filter_graph_build(&s->alpha_src_format, &s->alpha_dst_format, &s->alpha_params);
662  if (!s->alpha_graph) {
663  ret = print_zimg_error(link->dst);
664  goto fail;
665  }
666  }
667  }
668 
669  if (s->colorspace != -1)
670  out->colorspace = (int)s->dst_format.matrix_coefficients;
671 
672  if (s->primaries != -1)
673  out->color_primaries = (int)s->dst_format.color_primaries;
674 
675  if (s->range != -1)
676  out->color_range = (int)s->dst_format.pixel_range;
677 
678  if (s->trc != -1)
679  out->color_trc = (int)s->dst_format.transfer_characteristics;
680 
682  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
683  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
684  INT_MAX);
685 
686  for (plane = 0; plane < 3; plane++) {
687  int p = desc->comp[plane].plane;
688  src_buf.plane[plane].data = in->data[p];
689  src_buf.plane[plane].stride = in->linesize[p];
690  src_buf.plane[plane].mask = -1;
691 
692  p = odesc->comp[plane].plane;
693  dst_buf.plane[plane].data = out->data[p];
694  dst_buf.plane[plane].stride = out->linesize[p];
695  dst_buf.plane[plane].mask = -1;
696  }
697 
698  ret = zimg_filter_graph_process(s->graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0);
699  if (ret) {
700  ret = print_zimg_error(link->dst);
701  goto fail;
702  }
703 
704  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
705  src_buf.plane[0].data = in->data[3];
706  src_buf.plane[0].stride = in->linesize[3];
707  src_buf.plane[0].mask = -1;
708 
709  dst_buf.plane[0].data = out->data[3];
710  dst_buf.plane[0].stride = out->linesize[3];
711  dst_buf.plane[0].mask = -1;
712 
713  ret = zimg_filter_graph_process(s->alpha_graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0);
714  if (ret) {
715  ret = print_zimg_error(link->dst);
716  goto fail;
717  }
718  } else if (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
719  int x, y;
720 
721  if (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) {
722  for (y = 0; y < out->height; y++) {
723  for (x = 0; x < out->width; x++) {
724  AV_WN32(out->data[3] + x * odesc->comp[3].step + y * out->linesize[3],
725  av_float2int(1.0f));
726  }
727  }
728  } else {
729  for (y = 0; y < outlink->h; y++)
730  memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w);
731  }
732  }
733 
734 fail:
735  av_frame_free(&in);
736  if (ret) {
737  av_frame_free(&out);
738  return ret;
739  }
740 
741  return ff_filter_frame(outlink, out);
742 }
743 
745 {
746  ZScaleContext *s = ctx->priv;
747 
748  zimg_filter_graph_free(s->graph);
749  zimg_filter_graph_free(s->alpha_graph);
750  av_freep(&s->tmp);
751  s->tmp_size = 0;
752 }
753 
754 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
755  char *res, int res_len, int flags)
756 {
757  ZScaleContext *s = ctx->priv;
758  int ret;
759 
760  if ( !strcmp(cmd, "width") || !strcmp(cmd, "w")
761  || !strcmp(cmd, "height") || !strcmp(cmd, "h")) {
762 
763  int old_w = s->w;
764  int old_h = s->h;
765  AVFilterLink *outlink = ctx->outputs[0];
766 
767  av_opt_set(s, cmd, args, 0);
768  if ((ret = config_props(outlink)) < 0) {
769  s->w = old_w;
770  s->h = old_h;
771  }
772  } else
773  ret = AVERROR(ENOSYS);
774 
775  return ret;
776 }
777 
778 #define OFFSET(x) offsetof(ZScaleContext, x)
779 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
780 #define TFLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
781 
782 static const AVOption zscale_options[] = {
783  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
784  { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
785  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
786  { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
787  { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
788  { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
789  { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
790  { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
791  { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, "dither" },
792  { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, "dither" },
793  { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, "dither" },
794  { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, "dither" },
795  { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
796  { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
797  { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, "filter" },
798  { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, "filter" },
799  { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, "filter" },
800  { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, "filter" },
801  { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, "filter" },
802  { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, "filter" },
803  { "out_range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
804  { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
805  { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
806  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
807  { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
808  { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
809  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
810  { "tv", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
811  { "pc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
812  { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
813  { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
814  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "primaries" },
815  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
816  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
817  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
818  { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
819  { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
820  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
821  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
822  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_M}, 0, 0, FLAGS, "primaries" },
823  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_BG}, 0, 0, FLAGS, "primaries" },
824  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
825  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
826  { "film", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_FILM}, 0, 0, FLAGS, "primaries" },
827  { "bt2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
828  { "smpte428", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST428}, 0, 0, FLAGS, "primaries" },
829  { "smpte431", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST431_2}, 0, 0, FLAGS, "primaries" },
830  { "smpte432", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST432_1}, 0, 0, FLAGS, "primaries" },
831  { "jedec-p22", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" },
832  { "ebu3213", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" },
833  { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
834  { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
835  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "transfer" },
836  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
837  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
838  { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
839  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
840  { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
841  { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
842  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
843  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_M}, 0, 0, FLAGS, "transfer" },
844  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_BG}, 0, 0, FLAGS, "transfer" },
845  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
846  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
847  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
848  { "log100", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_100}, 0, 0, FLAGS, "transfer" },
849  { "log316", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_316}, 0, 0, FLAGS, "transfer" },
850  { "bt2020-10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
851  { "bt2020-12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
852  { "smpte2084", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ST2084}, 0, 0, FLAGS, "transfer" },
853  { "iec61966-2-4", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_4},0, 0, FLAGS, "transfer" },
854  { "iec61966-2-1", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_1},0, 0, FLAGS, "transfer" },
855  { "arib-std-b67", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ARIB_B67}, 0, 0, FLAGS, "transfer" },
856  { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
857  { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
858  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "matrix" },
859  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
860  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
861  { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
862  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
863  { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
864  { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
865  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
866  { "gbr", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_RGB}, 0, 0, FLAGS, "matrix" },
867  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
868  { "fcc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_FCC}, 0, 0, FLAGS, "matrix" },
869  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
870  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
871  { "smpte2400m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_240M}, 0, 0, FLAGS, "matrix" },
872  { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, "matrix" },
873  { "bt2020nc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
874  { "bt2020c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
875  { "chroma-derived-nc",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL}, 0, 0, FLAGS, "matrix" },
876  { "chroma-derived-c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_CL}, 0, 0, FLAGS, "matrix" },
877  { "ictcp", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_ICTCP}, 0, 0, FLAGS, "matrix" },
878  { "in_range", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
879  { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
880  { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
881  { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
882  { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
883  { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
884  { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
885  { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
886  { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
887  { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
888  { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
889  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "chroma" },
890  { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, "chroma" },
891  { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, "chroma" },
892  { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, "chroma" },
893  { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, "chroma" },
894  { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, "chroma" },
895  { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, "chroma" },
896  { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
897  { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
898  { "npl", "set nominal peak luminance", OFFSET(nominal_peak_luminance), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, 0, DBL_MAX, FLAGS },
899  { "agamma", "allow approximate gamma", OFFSET(approximate_gamma), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
900  { NULL }
901 };
902 
903 AVFILTER_DEFINE_CLASS(zscale);
904 
906  {
907  .name = "default",
908  .type = AVMEDIA_TYPE_VIDEO,
909  .filter_frame = filter_frame,
910  },
911  { NULL }
912 };
913 
915  {
916  .name = "default",
917  .type = AVMEDIA_TYPE_VIDEO,
918  .config_props = config_props,
919  },
920  { NULL }
921 };
922 
924  .name = "zscale",
925  .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."),
926  .init_dict = init_dict,
927  .query_formats = query_formats,
928  .priv_size = sizeof(ZScaleContext),
929  .priv_class = &zscale_class,
930  .uninit = uninit,
931  .inputs = avfilter_vf_zscale_inputs,
932  .outputs = avfilter_vf_zscale_outputs,
934 };
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:496
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
Definition: pixfmt.h:511
static const AVFilterPad avfilter_vf_zscale_outputs[]
Definition: vf_zscale.c:914
int plane
Which of the 4 planes contains the component.
Definition: pixdesc.h:35
#define NULL
Definition: coverity.c:32
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:440
static const char * format[]
Definition: af_aiir.c:339
IEC 61966-2-4.
Definition: pixfmt.h:492
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:432
int size
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2549
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:556
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
int out_v_chr_pos
Definition: vf_zscale.c:109
AVOption.
Definition: opt.h:246
"Linear transfer characteristics"
Definition: pixfmt.h:489
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:434
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:148
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:407
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:435
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:79
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601 ...
Definition: pixfmt.h:515
SMPTE ST 432-1 (2010) / P3 D65 / Display P3.
Definition: pixfmt.h:470
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:413
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:516
zimg_image_format dst_format
Definition: vf_zscale.c:118
SMPTE ST 431-2 (2011) / DCI P3.
Definition: pixfmt.h:469
color_range
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:401
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:104
int approximate_gamma
Definition: vf_zscale.c:103
zimg_graph_builder_params alpha_params
Definition: vf_zscale.c:120
enum AVColorSpace in_colorspace out_colorspace
Definition: vf_zscale.c:123
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)
Definition: pixfmt.h:510
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:480
char * w_expr
width expression string
Definition: vf_zscale.c:105
functionally identical to above
Definition: pixfmt.h:517
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:300
const char * name
Pad name.
Definition: internal.h:60
zimg_filter_graph * alpha_graph
Definition: vf_zscale.c:121
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1075
static int print_zimg_error(AVFilterContext *ctx)
Definition: vf_zscale.c:319
enum AVColorPrimaries in_primaries out_primaries
Definition: vf_zscale.c:125
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
zimg_image_format alpha_dst_format
Definition: vf_zscale.c:119
#define av_cold
Definition: attributes.h:88
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:177
#define av_malloc(s)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
AVOptions.
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:509
#define f(width, name)
Definition: cbs_vp9.c:255
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
Definition: pixdesc.h:188
Used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16.
Definition: pixfmt.h:518
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:485
AVFILTER_DEFINE_CLASS(zscale)
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:431
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:412
static AVFrame * frame
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
static int realign_frame(const AVPixFmtDescriptor *desc, AVFrame **frame)
Definition: vf_zscale.c:507
int in_h_chr_pos
Definition: vf_zscale.c:110
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
static const AVFilterPad avfilter_vf_zscale_inputs[]
Definition: vf_zscale.c:905
static int convert_range(enum AVColorRange color_range)
Definition: vf_zscale.c:450
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:410
AVColorRange
MPEG vs JPEG YUV range.
Definition: pixfmt.h:532
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
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:402
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:439
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:455
#define av_log(a,...)
static int convert_matrix(enum AVColorSpace colorspace)
Definition: vf_zscale.c:349
static int query_formats(AVFilterContext *ctx)
Definition: vf_zscale.c:164
A filter pad used for either input or output.
Definition: internal.h:54
static int aligned(int val)
Definition: dashdec.c:167
enum AVColorRange in_range out_range
Definition: vf_zscale.c:126
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:462
also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:460
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
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
int width
Definition: frame.h:358
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts)
Definition: vf_zscale.c:130
#define AVERROR(e)
Definition: error.h:43
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:148
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_zscale.c:545
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:188
void * tmp
Definition: vf_zscale.c:115
void * priv
private data for use by the filter
Definition: avfilter.h:353
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:544
#define OFFSET(x)
Definition: vf_zscale.c:778
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:441
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:555
zimg_image_format alpha_src_format
Definition: vf_zscale.c:119
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
Definition: pixfmt.h:457
simple assert() macros that are a bit more flexible than ISO C assert().
SMPTE ST 428-1 (CIE 1931 XYZ)
Definition: pixfmt.h:467
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:400
#define ZIMG_ALIGNMENT
Definition: vf_zscale.c:47
#define FFMAX(a, b)
Definition: common.h:94
#define fail()
Definition: checkasm.h:123
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:419
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
Definition: frame.c:800
int w
New dimensions.
Definition: vf_zscale.c:88
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
var_name
Definition: aeval.c:46
common internal API header
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:395
AVDictionary * opts
Definition: movenc.c:50
SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems.
Definition: pixfmt.h:497
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:416
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
#define NAN
Definition: mathematics.h:64
#define FFMIN(a, b)
Definition: common.h:96
char * size_str
Definition: vf_zscale.c:101
zimg_filter_graph * graph
Definition: vf_zscale.c:121
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
static int graph_build(zimg_filter_graph **graph, zimg_graph_builder_params *params, zimg_image_format *src_format, zimg_image_format *dst_format, void **tmp, size_t *tmp_size)
Definition: vf_zscale.c:479
colour filters using Illuminant C
Definition: pixfmt.h:465
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:484
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:520
ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2.
Definition: pixfmt.h:558
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:462
static const struct ColorPrimaries color_primaries[AVCOL_PRI_NB]
AVFormatContext * ctx
Definition: movenc.c:48
#define s(width, name)
Definition: cbs_vp9.c:257
#define TFLAGS
Definition: vf_zscale.c:780
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:436
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:396
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:415
FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:514
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:535
int colorspace_in
Definition: vf_zscale.c:96
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:408
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:373
also ITU-R BT1361
Definition: pixfmt.h:482
ITU-R BT.2100-0, ICtCp.
Definition: pixfmt.h:525
also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
Definition: pixfmt.h:487
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:405
zimg_graph_builder_params params
Definition: vf_zscale.c:120
double nominal_peak_luminance
Definition: vf_zscale.c:102
functionally identical to above
Definition: pixfmt.h:464
enum AVChromaLocation in_chromal out_chromal
Definition: vf_zscale.c:127
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:331
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
Chromaticity-derived constant luminance system.
Definition: pixfmt.h:524
static int convert_trc(enum AVColorTransferCharacteristic color_trc)
Definition: vf_zscale.c:382
static const char *const var_names[]
Definition: vf_zscale.c:49
char * h_expr
height expression string
Definition: vf_zscale.c:106
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:388
zimg_image_format src_format
Definition: vf_zscale.c:118
int out_h_chr_pos
Definition: vf_zscale.c:108
int primaries_in
Definition: vf_zscale.c:98
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Chromaticity-derived non-constant luminance system.
Definition: pixfmt.h:523
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:397
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_zscale.c:754
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
int colorspace
Definition: vf_zscale.c:91
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
static int convert_primaries(enum AVColorPrimaries color_primaries)
Definition: vf_zscale.c:419
Rational number (pair of numerator and denominator).
Definition: rational.h:58
"Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"
Definition: pixfmt.h:491
const char * name
Filter name.
Definition: avfilter.h:148
static int convert_chroma_location(enum AVChromaLocation chroma_location)
Definition: vf_zscale.c:329
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:394
enum AVChromaLocation chroma_location
Definition: frame.h:557
#define snprintf
Definition: snprintf.h:34
static av_always_inline uint32_t av_float2int(float f)
Reinterpret a float as a 32-bit integer.
Definition: intfloat.h:50
misc parsing utilities
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
int av_frame_get_buffer(AVFrame *frame, int align)
Allocate new buffer(s) for audio or video data.
Definition: frame.c:325
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:406
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:414
size_t tmp_size
Definition: vf_zscale.c:116
#define flags(name, subs,...)
Definition: cbs_av1.c:565
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:398
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:404
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:314
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:534
static int config_props(AVFilterLink *outlink)
Definition: vf_zscale.c:196
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:521
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:426
int
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_zscale.c:744
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:427
IEC 61966-2-1 (sRGB or sYCC)
Definition: pixfmt.h:494
if(ret< 0)
Definition: vf_mcdeint.c:279
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
#define AV_WN32(p, v)
Definition: intreadwrite.h:376
AVFilter ff_vf_zscale
Definition: vf_zscale.c:923
also ITU-R BT470BG
Definition: pixfmt.h:486
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:433
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
static const AVOption zscale_options[]
Definition: vf_zscale.c:782
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
int den
Denominator.
Definition: rational.h:60
int force_original_aspect_ratio
Definition: vf_zscale.c:113
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:501
#define FLAGS
Definition: vf_zscale.c:779
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
int in_v_chr_pos
Definition: vf_zscale.c:111
enum AVColorPrimaries color_primaries
Definition: frame.h:546
An instance of a filter.
Definition: avfilter.h:338
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:495
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:463
ITU-R BT2020.
Definition: pixfmt.h:466
int height
Definition: frame.h:358
FILE * out
Definition: movenc.c:54
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:554
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:548
MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0.
Definition: pixfmt.h:557
#define FFSWAP(type, a, b)
Definition: common.h:99
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:2465
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:57
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:465
enum AVColorTransferCharacteristic in_trc out_trc
Definition: vf_zscale.c:124
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:409
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:659
int step
Number of elements between 2 horizontally consecutive pixels.
Definition: pixdesc.h:41
simple arithmetic expression evaluator
"Logarithmic transfer characteristic (100:1 range)"
Definition: pixfmt.h:490