FFmpeg
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 
46 #define ZIMG_ALIGNMENT 32
47 
48 static const char *const var_names[] = {
49  "in_w", "iw",
50  "in_h", "ih",
51  "out_w", "ow",
52  "out_h", "oh",
53  "a",
54  "sar",
55  "dar",
56  "hsub",
57  "vsub",
58  "ohsub",
59  "ovsub",
60  NULL
61 };
62 
63 enum var_name {
76 };
77 
78 typedef struct ZScaleContext {
79  const AVClass *class;
80 
81  /**
82  * New dimensions. Special values are:
83  * 0 = original width/height
84  * -1 = keep original aspect
85  * -N = try to keep aspect but make sure it is divisible by N
86  */
87  int w, h;
88  int dither;
89  int filter;
91  int trc;
92  int primaries;
93  int range;
94  int chromal;
96  int trc_in;
98  int range_in;
100  char *size_str;
103  double param_a;
104  double param_b;
105 
106  char *w_expr; ///< width expression string
107  char *h_expr; ///< height expression string
108 
113 
115 
116  void *tmp;
117  size_t tmp_size;
118 
119  zimg_image_format src_format, dst_format;
120  zimg_image_format alpha_src_format, alpha_dst_format;
121  zimg_graph_builder_params alpha_params, params;
122  zimg_filter_graph *alpha_graph, *graph;
123 
124  enum AVColorSpace in_colorspace, out_colorspace;
126  enum AVColorPrimaries in_primaries, out_primaries;
127  enum AVColorRange in_range, out_range;
128  enum AVChromaLocation in_chromal, out_chromal;
129 } ZScaleContext;
130 
132 {
133  ZScaleContext *s = ctx->priv;
134  int ret;
135 
136  if (s->size_str && (s->w_expr || s->h_expr)) {
138  "Size and width/height expressions cannot be set at the same time.\n");
139  return AVERROR(EINVAL);
140  }
141 
142  if (s->w_expr && !s->h_expr)
143  FFSWAP(char *, s->w_expr, s->size_str);
144 
145  if (s->size_str) {
146  char buf[32];
147  if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) {
149  "Invalid size '%s'\n", s->size_str);
150  return ret;
151  }
152  snprintf(buf, sizeof(buf)-1, "%d", s->w);
153  av_opt_set(s, "w", buf, 0);
154  snprintf(buf, sizeof(buf)-1, "%d", s->h);
155  av_opt_set(s, "h", buf, 0);
156  }
157  if (!s->w_expr)
158  av_opt_set(s, "w", "iw", 0);
159  if (!s->h_expr)
160  av_opt_set(s, "h", "ih", 0);
161 
162  return 0;
163 }
164 
166 {
167  static const enum AVPixelFormat pixel_fmts[] = {
188  };
189  int ret;
190 
191  ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->outcfg.formats);
192  if (ret < 0)
193  return ret;
194  return ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->incfg.formats);
195 }
196 
197 static int config_props(AVFilterLink *outlink)
198 {
199  AVFilterContext *ctx = outlink->src;
200  AVFilterLink *inlink = outlink->src->inputs[0];
201  ZScaleContext *s = ctx->priv;
203  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format);
204  int64_t w, h;
205  double var_values[VARS_NB], res;
206  char *expr;
207  int ret;
208  int factor_w, factor_h;
209 
210  var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
211  var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
212  var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
213  var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
214  var_values[VAR_A] = (double) inlink->w / inlink->h;
215  var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
216  (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
217  var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
218  var_values[VAR_HSUB] = 1 << desc->log2_chroma_w;
219  var_values[VAR_VSUB] = 1 << desc->log2_chroma_h;
220  var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w;
221  var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h;
222 
223  /* evaluate width and height */
224  av_expr_parse_and_eval(&res, (expr = s->w_expr),
225  var_names, var_values,
226  NULL, NULL, NULL, NULL, NULL, 0, ctx);
227  s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;
228  if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
229  var_names, var_values,
230  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
231  goto fail;
232  s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;
233  /* evaluate again the width, as it may depend on the output height */
234  if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
235  var_names, var_values,
236  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
237  goto fail;
238  s->w = res;
239 
240  w = s->w;
241  h = s->h;
242 
243  /* Check if it is requested that the result has to be divisible by a some
244  * factor (w or h = -n with n being the factor). */
245  factor_w = 1;
246  factor_h = 1;
247  if (w < -1) {
248  factor_w = -w;
249  }
250  if (h < -1) {
251  factor_h = -h;
252  }
253 
254  if (w < 0 && h < 0)
255  s->w = s->h = 0;
256 
257  if (!(w = s->w))
258  w = inlink->w;
259  if (!(h = s->h))
260  h = inlink->h;
261 
262  /* Make sure that the result is divisible by the factor we determined
263  * earlier. If no factor was set, it is nothing will happen as the default
264  * factor is 1 */
265  if (w < 0)
266  w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w;
267  if (h < 0)
268  h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h;
269 
270  /* Note that force_original_aspect_ratio may overwrite the previous set
271  * dimensions so that it is not divisible by the set factors anymore. */
272  if (s->force_original_aspect_ratio) {
273  int tmp_w = av_rescale(h, inlink->w, inlink->h);
274  int tmp_h = av_rescale(w, inlink->h, inlink->w);
275 
276  if (s->force_original_aspect_ratio == 1) {
277  w = FFMIN(tmp_w, w);
278  h = FFMIN(tmp_h, h);
279  } else {
280  w = FFMAX(tmp_w, w);
281  h = FFMAX(tmp_h, h);
282  }
283  }
284 
285  if (w > INT_MAX || h > INT_MAX ||
286  (h * inlink->w) > INT_MAX ||
287  (w * inlink->h) > INT_MAX)
288  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
289 
290  outlink->w = w;
291  outlink->h = h;
292 
293  if (inlink->w == outlink->w &&
294  inlink->h == outlink->h &&
295  inlink->format == outlink->format)
296  ;
297  else {
298  }
299 
300  if (inlink->sample_aspect_ratio.num){
301  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
302  } else
303  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
304 
305  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",
306  inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
307  inlink->sample_aspect_ratio.num, inlink->sample_aspect_ratio.den,
308  outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format),
309  outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den);
310  return 0;
311 
312 fail:
314  "Error when evaluating the expression '%s'.\n"
315  "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n",
316  expr, s->w_expr, s->h_expr);
317  return ret;
318 }
319 
321 {
322  char err_msg[1024];
323  int err_code = zimg_get_last_error(err_msg, sizeof(err_msg));
324 
325  av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg);
326 
327  return AVERROR_EXTERNAL;
328 }
329 
330 static int convert_chroma_location(enum AVChromaLocation chroma_location)
331 {
332  switch (chroma_location) {
334  case AVCHROMA_LOC_LEFT:
335  return ZIMG_CHROMA_LEFT;
336  case AVCHROMA_LOC_CENTER:
337  return ZIMG_CHROMA_CENTER;
339  return ZIMG_CHROMA_TOP_LEFT;
340  case AVCHROMA_LOC_TOP:
341  return ZIMG_CHROMA_TOP;
343  return ZIMG_CHROMA_BOTTOM_LEFT;
344  case AVCHROMA_LOC_BOTTOM:
345  return ZIMG_CHROMA_BOTTOM;
346  }
347  return ZIMG_CHROMA_LEFT;
348 }
349 
350 static int convert_matrix(enum AVColorSpace colorspace)
351 {
352  switch (colorspace) {
353  case AVCOL_SPC_RGB:
354  return ZIMG_MATRIX_RGB;
355  case AVCOL_SPC_BT709:
356  return ZIMG_MATRIX_709;
358  return ZIMG_MATRIX_UNSPECIFIED;
359  case AVCOL_SPC_FCC:
360  return ZIMG_MATRIX_FCC;
361  case AVCOL_SPC_BT470BG:
362  return ZIMG_MATRIX_470BG;
363  case AVCOL_SPC_SMPTE170M:
364  return ZIMG_MATRIX_170M;
365  case AVCOL_SPC_SMPTE240M:
366  return ZIMG_MATRIX_240M;
367  case AVCOL_SPC_YCGCO:
368  return ZIMG_MATRIX_YCGCO;
370  return ZIMG_MATRIX_2020_NCL;
371  case AVCOL_SPC_BT2020_CL:
372  return ZIMG_MATRIX_2020_CL;
374  return ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL;
376  return ZIMG_MATRIX_CHROMATICITY_DERIVED_CL;
377  case AVCOL_SPC_ICTCP:
378  return ZIMG_MATRIX_ICTCP;
379  }
380  return ZIMG_MATRIX_UNSPECIFIED;
381 }
382 
383 static int convert_trc(enum AVColorTransferCharacteristic color_trc)
384 {
385  switch (color_trc) {
387  return ZIMG_TRANSFER_UNSPECIFIED;
388  case AVCOL_TRC_BT709:
389  return ZIMG_TRANSFER_709;
390  case AVCOL_TRC_GAMMA22:
391  return ZIMG_TRANSFER_470_M;
392  case AVCOL_TRC_GAMMA28:
393  return ZIMG_TRANSFER_470_BG;
394  case AVCOL_TRC_SMPTE170M:
395  return ZIMG_TRANSFER_601;
396  case AVCOL_TRC_SMPTE240M:
397  return ZIMG_TRANSFER_240M;
398  case AVCOL_TRC_LINEAR:
399  return ZIMG_TRANSFER_LINEAR;
400  case AVCOL_TRC_LOG:
401  return ZIMG_TRANSFER_LOG_100;
402  case AVCOL_TRC_LOG_SQRT:
403  return ZIMG_TRANSFER_LOG_316;
405  return ZIMG_TRANSFER_IEC_61966_2_4;
406  case AVCOL_TRC_BT2020_10:
407  return ZIMG_TRANSFER_2020_10;
408  case AVCOL_TRC_BT2020_12:
409  return ZIMG_TRANSFER_2020_12;
410  case AVCOL_TRC_SMPTE2084:
411  return ZIMG_TRANSFER_ST2084;
413  return ZIMG_TRANSFER_ARIB_B67;
415  return ZIMG_TRANSFER_IEC_61966_2_1;
416  }
417  return ZIMG_TRANSFER_UNSPECIFIED;
418 }
419 
421 {
422  switch (color_primaries) {
424  return ZIMG_PRIMARIES_UNSPECIFIED;
425  case AVCOL_PRI_BT709:
426  return ZIMG_PRIMARIES_709;
427  case AVCOL_PRI_BT470M:
428  return ZIMG_PRIMARIES_470_M;
429  case AVCOL_PRI_BT470BG:
430  return ZIMG_PRIMARIES_470_BG;
431  case AVCOL_PRI_SMPTE170M:
432  return ZIMG_PRIMARIES_170M;
433  case AVCOL_PRI_SMPTE240M:
434  return ZIMG_PRIMARIES_240M;
435  case AVCOL_PRI_FILM:
436  return ZIMG_PRIMARIES_FILM;
437  case AVCOL_PRI_BT2020:
438  return ZIMG_PRIMARIES_2020;
439  case AVCOL_PRI_SMPTE428:
440  return ZIMG_PRIMARIES_ST428;
441  case AVCOL_PRI_SMPTE431:
442  return ZIMG_PRIMARIES_ST431_2;
443  case AVCOL_PRI_SMPTE432:
444  return ZIMG_PRIMARIES_ST432_1;
445  case AVCOL_PRI_JEDEC_P22:
446  return ZIMG_PRIMARIES_EBU3213_E;
447  }
448  return ZIMG_PRIMARIES_UNSPECIFIED;
449 }
450 
452 {
453  switch (color_range) {
455  case AVCOL_RANGE_MPEG:
456  return ZIMG_RANGE_LIMITED;
457  case AVCOL_RANGE_JPEG:
458  return ZIMG_RANGE_FULL;
459  }
460  return ZIMG_RANGE_LIMITED;
461 }
462 
463 static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc,
464  int colorspace, int primaries, int transfer, int range, int location)
465 {
466  format->width = frame->width;
467  format->height = frame->height;
468  format->subsample_w = desc->log2_chroma_w;
469  format->subsample_h = desc->log2_chroma_h;
470  format->depth = desc->comp[0].depth;
471  format->pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
472  format->color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
473  format->matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : colorspace == -1 ? convert_matrix(frame->colorspace) : colorspace;
474  format->color_primaries = primaries == -1 ? convert_primaries(frame->color_primaries) : primaries;
475  format->transfer_characteristics = transfer == - 1 ? convert_trc(frame->color_trc) : transfer;
476  format->pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : range == -1 ? convert_range(frame->color_range) : range;
477  format->chroma_location = location == -1 ? convert_chroma_location(frame->chroma_location) : location;
478 }
479 
480 static int graph_build(zimg_filter_graph **graph, zimg_graph_builder_params *params,
481  zimg_image_format *src_format, zimg_image_format *dst_format,
482  void **tmp, size_t *tmp_size)
483 {
484  int ret;
485  size_t size;
486 
487  zimg_filter_graph_free(*graph);
488  *graph = zimg_filter_graph_build(src_format, dst_format, params);
489  if (!*graph)
490  return print_zimg_error(NULL);
491 
492  ret = zimg_filter_graph_get_tmp_size(*graph, &size);
493  if (ret)
494  return print_zimg_error(NULL);
495 
496  if (size > *tmp_size) {
497  av_freep(tmp);
498  *tmp = av_malloc(size);
499  if (!*tmp)
500  return AVERROR(ENOMEM);
501 
502  *tmp_size = size;
503  }
504 
505  return 0;
506 }
507 
509 {
510  AVFrame *aligned = NULL;
511  int ret = 0, plane;
512 
513  /* Realign any unaligned input frame. */
514  for (plane = 0; plane < 3; plane++) {
515  int p = desc->comp[plane].plane;
516  if ((uintptr_t)(*frame)->data[p] % ZIMG_ALIGNMENT || (*frame)->linesize[p] % ZIMG_ALIGNMENT) {
517  if (!(aligned = av_frame_alloc())) {
518  ret = AVERROR(ENOMEM);
519  goto fail;
520  }
521 
522  aligned->format = (*frame)->format;
523  aligned->width = (*frame)->width;
524  aligned->height = (*frame)->height;
525 
527  goto fail;
528 
529  if ((ret = av_frame_copy(aligned, *frame)) < 0)
530  goto fail;
531 
532  if ((ret = av_frame_copy_props(aligned, *frame)) < 0)
533  goto fail;
534 
536  *frame = aligned;
537  return 0;
538  }
539  }
540 
541 fail:
543  return ret;
544 }
545 
547 {
548  ZScaleContext *s = link->dst->priv;
549  AVFilterLink *outlink = link->dst->outputs[0];
551  const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format);
552  zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
553  zimg_image_buffer dst_buf = { ZIMG_API_VERSION };
554  char buf[32];
555  int ret = 0, plane;
556  AVFrame *out = NULL;
557 
558  if ((ret = realign_frame(desc, &in)) < 0)
559  goto fail;
560 
561  if (!(out = ff_get_video_buffer(outlink, outlink->w, outlink->h))) {
562  ret = AVERROR(ENOMEM);
563  goto fail;
564  }
565 
567  out->width = outlink->w;
568  out->height = outlink->h;
569 
570  if( in->width != link->w
571  || in->height != link->h
572  || in->format != link->format
573  || s->in_colorspace != in->colorspace
574  || s->in_trc != in->color_trc
575  || s->in_primaries != in->color_primaries
576  || s->in_range != in->color_range
577  || s->out_colorspace != out->colorspace
578  || s->out_trc != out->color_trc
579  || s->out_primaries != out->color_primaries
580  || s->out_range != out->color_range
581  || s->in_chromal != in->chroma_location
582  || s->out_chromal != out->chroma_location) {
583  snprintf(buf, sizeof(buf)-1, "%d", outlink->w);
584  av_opt_set(s, "w", buf, 0);
585  snprintf(buf, sizeof(buf)-1, "%d", outlink->h);
586  av_opt_set(s, "h", buf, 0);
587 
588  link->dst->inputs[0]->format = in->format;
589  link->dst->inputs[0]->w = in->width;
590  link->dst->inputs[0]->h = in->height;
591 
592  if ((ret = config_props(outlink)) < 0)
593  goto fail;
594 
595  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
596  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
597  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
598 
599  s->params.dither_type = s->dither;
600  s->params.cpu_type = ZIMG_CPU_AUTO;
601  s->params.resample_filter = s->filter;
602  s->params.resample_filter_uv = s->filter;
603  s->params.nominal_peak_luminance = s->nominal_peak_luminance;
604  s->params.allow_approximate_gamma = s->approximate_gamma;
605  s->params.filter_param_a = s->params.filter_param_a_uv = s->param_a;
606  s->params.filter_param_b = s->params.filter_param_b_uv = s->param_b;
607 
608  format_init(&s->src_format, in, desc, s->colorspace_in,
609  s->primaries_in, s->trc_in, s->range_in, s->chromal_in);
610  format_init(&s->dst_format, out, odesc, s->colorspace,
611  s->primaries, s->trc, s->range, s->chromal);
612 
613  if (s->colorspace != -1)
614  out->colorspace = (int)s->dst_format.matrix_coefficients;
615 
616  if (s->primaries != -1)
617  out->color_primaries = (int)s->dst_format.color_primaries;
618 
619  if (s->range != -1)
620  out->color_range = (int)s->dst_format.pixel_range + 1;
621 
622  if (s->trc != -1)
623  out->color_trc = (int)s->dst_format.transfer_characteristics;
624 
625  if (s->chromal != -1)
626  out->chroma_location = (int)s->dst_format.chroma_location - 1;
627 
628  ret = graph_build(&s->graph, &s->params, &s->src_format, &s->dst_format,
629  &s->tmp, &s->tmp_size);
630  if (ret < 0)
631  goto fail;
632 
633  s->in_colorspace = in->colorspace;
634  s->in_trc = in->color_trc;
635  s->in_primaries = in->color_primaries;
636  s->in_range = in->color_range;
637  s->out_colorspace = out->colorspace;
638  s->out_trc = out->color_trc;
639  s->out_primaries = out->color_primaries;
640  s->out_range = out->color_range;
641 
642  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
643  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
644  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
645  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
646 
647  s->alpha_params.dither_type = s->dither;
648  s->alpha_params.cpu_type = ZIMG_CPU_AUTO;
649  s->alpha_params.resample_filter = s->filter;
650 
651  s->alpha_src_format.width = in->width;
652  s->alpha_src_format.height = in->height;
653  s->alpha_src_format.depth = desc->comp[0].depth;
654  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;
655  s->alpha_src_format.color_family = ZIMG_COLOR_GREY;
656 
657  s->alpha_dst_format.width = out->width;
658  s->alpha_dst_format.height = out->height;
659  s->alpha_dst_format.depth = odesc->comp[0].depth;
660  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;
661  s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
662 
663  zimg_filter_graph_free(s->alpha_graph);
664  s->alpha_graph = zimg_filter_graph_build(&s->alpha_src_format, &s->alpha_dst_format, &s->alpha_params);
665  if (!s->alpha_graph) {
666  ret = print_zimg_error(link->dst);
667  goto fail;
668  }
669  }
670  }
671 
672  if (s->colorspace != -1)
673  out->colorspace = (int)s->dst_format.matrix_coefficients;
674 
675  if (s->primaries != -1)
676  out->color_primaries = (int)s->dst_format.color_primaries;
677 
678  if (s->range != -1)
679  out->color_range = (int)s->dst_format.pixel_range;
680 
681  if (s->trc != -1)
682  out->color_trc = (int)s->dst_format.transfer_characteristics;
683 
684  av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
685  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
686  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
687  INT_MAX);
688 
689  for (plane = 0; plane < 3; plane++) {
690  int p = desc->comp[plane].plane;
691  src_buf.plane[plane].data = in->data[p];
692  src_buf.plane[plane].stride = in->linesize[p];
693  src_buf.plane[plane].mask = -1;
694 
695  p = odesc->comp[plane].plane;
696  dst_buf.plane[plane].data = out->data[p];
697  dst_buf.plane[plane].stride = out->linesize[p];
698  dst_buf.plane[plane].mask = -1;
699  }
700 
701  ret = zimg_filter_graph_process(s->graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0);
702  if (ret) {
703  ret = print_zimg_error(link->dst);
704  goto fail;
705  }
706 
707  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
708  src_buf.plane[0].data = in->data[3];
709  src_buf.plane[0].stride = in->linesize[3];
710  src_buf.plane[0].mask = -1;
711 
712  dst_buf.plane[0].data = out->data[3];
713  dst_buf.plane[0].stride = out->linesize[3];
714  dst_buf.plane[0].mask = -1;
715 
716  ret = zimg_filter_graph_process(s->alpha_graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0);
717  if (ret) {
718  ret = print_zimg_error(link->dst);
719  goto fail;
720  }
721  } else if (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
722  int x, y;
723 
724  if (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) {
725  for (y = 0; y < out->height; y++) {
726  for (x = 0; x < out->width; x++) {
727  AV_WN32(out->data[3] + x * odesc->comp[3].step + y * out->linesize[3],
728  av_float2int(1.0f));
729  }
730  }
731  } else {
732  for (y = 0; y < outlink->h; y++)
733  memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w);
734  }
735  }
736 
737 fail:
738  av_frame_free(&in);
739  if (ret) {
740  av_frame_free(&out);
741  return ret;
742  }
743 
744  return ff_filter_frame(outlink, out);
745 }
746 
748 {
749  ZScaleContext *s = ctx->priv;
750 
751  zimg_filter_graph_free(s->graph);
752  zimg_filter_graph_free(s->alpha_graph);
753  av_freep(&s->tmp);
754  s->tmp_size = 0;
755 }
756 
757 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
758  char *res, int res_len, int flags)
759 {
760  ZScaleContext *s = ctx->priv;
761  int ret;
762 
763  if ( !strcmp(cmd, "width") || !strcmp(cmd, "w")
764  || !strcmp(cmd, "height") || !strcmp(cmd, "h")) {
765 
766  int old_w = s->w;
767  int old_h = s->h;
768  AVFilterLink *outlink = ctx->outputs[0];
769 
770  av_opt_set(s, cmd, args, 0);
771  if ((ret = config_props(outlink)) < 0) {
772  s->w = old_w;
773  s->h = old_h;
774  }
775  } else
776  ret = AVERROR(ENOSYS);
777 
778  return ret;
779 }
780 
781 #define OFFSET(x) offsetof(ZScaleContext, x)
782 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
783 #define TFLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
784 
785 static const AVOption zscale_options[] = {
786  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
787  { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
788  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
789  { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
790  { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
791  { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
792  { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
793  { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
794  { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, "dither" },
795  { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, "dither" },
796  { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, "dither" },
797  { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, "dither" },
798  { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
799  { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
800  { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, "filter" },
801  { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, "filter" },
802  { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, "filter" },
803  { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, "filter" },
804  { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, "filter" },
805  { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, "filter" },
806  { "out_range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
807  { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
808  { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
809  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
810  { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
811  { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
812  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
813  { "tv", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
814  { "pc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
815  { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
816  { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
817  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "primaries" },
818  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
819  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
820  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
821  { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
822  { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
823  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
824  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
825  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_M}, 0, 0, FLAGS, "primaries" },
826  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_BG}, 0, 0, FLAGS, "primaries" },
827  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
828  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
829  { "film", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_FILM}, 0, 0, FLAGS, "primaries" },
830  { "bt2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
831  { "smpte428", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST428}, 0, 0, FLAGS, "primaries" },
832  { "smpte431", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST431_2}, 0, 0, FLAGS, "primaries" },
833  { "smpte432", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST432_1}, 0, 0, FLAGS, "primaries" },
834  { "jedec-p22", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" },
835  { "ebu3213", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" },
836  { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
837  { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
838  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "transfer" },
839  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
840  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
841  { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
842  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
843  { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
844  { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
845  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
846  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_M}, 0, 0, FLAGS, "transfer" },
847  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_BG}, 0, 0, FLAGS, "transfer" },
848  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
849  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
850  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
851  { "log100", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_100}, 0, 0, FLAGS, "transfer" },
852  { "log316", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_316}, 0, 0, FLAGS, "transfer" },
853  { "bt2020-10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
854  { "bt2020-12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
855  { "smpte2084", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ST2084}, 0, 0, FLAGS, "transfer" },
856  { "iec61966-2-4", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_4},0, 0, FLAGS, "transfer" },
857  { "iec61966-2-1", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_1},0, 0, FLAGS, "transfer" },
858  { "arib-std-b67", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ARIB_B67}, 0, 0, FLAGS, "transfer" },
859  { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
860  { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
861  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "matrix" },
862  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
863  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
864  { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
865  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
866  { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
867  { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
868  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
869  { "gbr", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_RGB}, 0, 0, FLAGS, "matrix" },
870  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
871  { "fcc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_FCC}, 0, 0, FLAGS, "matrix" },
872  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
873  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
874  { "smpte2400m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_240M}, 0, 0, FLAGS, "matrix" },
875  { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, "matrix" },
876  { "bt2020nc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
877  { "bt2020c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
878  { "chroma-derived-nc",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL}, 0, 0, FLAGS, "matrix" },
879  { "chroma-derived-c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_CL}, 0, 0, FLAGS, "matrix" },
880  { "ictcp", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_ICTCP}, 0, 0, FLAGS, "matrix" },
881  { "in_range", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
882  { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
883  { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
884  { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
885  { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
886  { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
887  { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
888  { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
889  { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
890  { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
891  { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
892  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "chroma" },
893  { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, "chroma" },
894  { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, "chroma" },
895  { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, "chroma" },
896  { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, "chroma" },
897  { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, "chroma" },
898  { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, "chroma" },
899  { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
900  { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
901  { "npl", "set nominal peak luminance", OFFSET(nominal_peak_luminance), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, 0, DBL_MAX, FLAGS },
902  { "agamma", "allow approximate gamma", OFFSET(approximate_gamma), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
903  { "param_a", "parameter A, which is parameter \"b\" for bicubic, "
904  "and the number of filter taps for lanczos", OFFSET(param_a), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
905  { "param_b", "parameter B, which is parameter \"c\" for bicubic", OFFSET(param_b), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
906  { NULL }
907 };
908 
909 AVFILTER_DEFINE_CLASS(zscale);
910 
912  {
913  .name = "default",
914  .type = AVMEDIA_TYPE_VIDEO,
915  .filter_frame = filter_frame,
916  },
917  { NULL }
918 };
919 
921  {
922  .name = "default",
923  .type = AVMEDIA_TYPE_VIDEO,
924  .config_props = config_props,
925  },
926  { NULL }
927 };
928 
930  .name = "zscale",
931  .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."),
932  .init_dict = init_dict,
933  .query_formats = query_formats,
934  .priv_size = sizeof(ZScaleContext),
935  .priv_class = &zscale_class,
936  .uninit = uninit,
940 };
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:97
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:432
AVFrame::color_trc
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:534
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:411
AVFrame::color_range
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:530
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
ZScaleContext::range_in
int range_in
Definition: vf_zscale.c:98
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:286
ZScaleContext::colorspace_in
int colorspace_in
Definition: vf_zscale.c:95
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:473
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:246
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_zscale.c:747
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:978
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2540
AVCOL_TRC_LINEAR
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:482
AVCHROMA_LOC_BOTTOM
@ AVCHROMA_LOC_BOTTOM
Definition: pixfmt.h:602
ZScaleContext::h_expr
char * h_expr
height expression string
Definition: vf_zscale.c:107
ZScaleContext::filter
int filter
Definition: vf_zscale.c:89
ZIMG_ALIGNMENT
#define ZIMG_ALIGNMENT
Definition: vf_zscale.c:46
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:532
graph
fg outputs[0] graph
Definition: ffmpeg_filter.c:174
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:112
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:424
AVFrame::colorspace
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:541
ZScaleContext::chromal
int chromal
Definition: vf_zscale.c:94
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
tmp
static uint8_t tmp[11]
Definition: aes_ctr.c:26
VAR_VSUB
@ VAR_VSUB
Definition: vf_zscale.c:72
pixdesc.h
TFLAGS
#define TFLAGS
Definition: vf_zscale.c:783
var_names
static const char *const var_names[]
Definition: vf_zscale.c:48
AVFrame::width
int width
Definition: frame.h:361
config_props
static int config_props(AVFilterLink *outlink)
Definition: vf_zscale.c:197
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:431
w
uint8_t w
Definition: llviddspenc.c:38
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:576
ZScaleContext::colorspace
int colorspace
Definition: vf_zscale.c:90
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:426
ZScaleContext::alpha_src_format
zimg_image_format alpha_src_format
Definition: vf_zscale.c:120
AVOption
AVOption.
Definition: opt.h:247
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:476
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:389
AVCOL_PRI_JEDEC_P22
@ AVCOL_PRI_JEDEC_P22
Definition: pixfmt.h:465
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:463
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:503
float.h
AVCOL_TRC_BT2020_12
@ AVCOL_TRC_BT2020_12
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:489
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
AVDictionary
Definition: dict.c:30
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
zscale_options
static const AVOption zscale_options[]
Definition: vf_zscale.c:785
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:448
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
av_float2int
static av_always_inline uint32_t av_float2int(float f)
Reinterpret a float as a 32-bit integer.
Definition: intfloat.h:50
graph_build
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:480
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:427
ZScaleContext::h
int h
Definition: vf_zscale.c:87
AVCOL_SPC_BT2020_CL
@ AVCOL_SPC_BT2020_CL
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:514
ZScaleContext::out_chromal
enum AVChromaLocation in_chromal out_chromal
Definition: vf_zscale.c:128
ZScaleContext::primaries
int primaries
Definition: vf_zscale.c:92
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:317
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:31
ZScaleContext::in_h_chr_pos
int in_h_chr_pos
Definition: vf_zscale.c:111
formats.h
ZScaleContext::param_b
double param_b
Definition: vf_zscale.c:104
VAR_OUT_W
@ VAR_OUT_W
Definition: vf_zscale.c:66
AVFrame::chroma_location
enum AVChromaLocation chroma_location
Definition: frame.h:543
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:508
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:423
convert_primaries
static int convert_primaries(enum AVColorPrimaries color_primaries)
Definition: vf_zscale.c:420
ZScaleContext::dst_format
zimg_image_format dst_format
Definition: vf_zscale.c:119
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:407
AVCOL_TRC_IEC61966_2_1
@ AVCOL_TRC_IEC61966_2_1
IEC 61966-2-1 (sRGB or sYCC)
Definition: pixfmt.h:487
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:119
fail
#define fail()
Definition: checkasm.h:136
ZScaleContext::out_primaries
enum AVColorPrimaries in_primaries out_primaries
Definition: vf_zscale.c:126
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:405
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:433
ZScaleContext::range
int range
Definition: vf_zscale.c:93
VAR_OW
@ VAR_OW
Definition: vf_zscale.c:66
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:387
AVCOL_TRC_GAMMA28
@ AVCOL_TRC_GAMMA28
also ITU-R BT470BG
Definition: pixfmt.h:479
convert_matrix
static int convert_matrix(enum AVColorSpace colorspace)
Definition: vf_zscale.c:350
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_zscale.c:165
ZScaleContext::alpha_params
zimg_graph_builder_params alpha_params
Definition: vf_zscale.c:121
av_opt_set
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:465
AVCOL_TRC_LOG_SQRT
@ AVCOL_TRC_LOG_SQRT
"Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"
Definition: pixfmt.h:484
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:478
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
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:757
VAR_SAR
@ VAR_SAR
Definition: vf_zscale.c:69
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:99
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:392
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:248
aligned
static int aligned(int val)
Definition: dashdec.c:169
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
ZScaleContext::alpha_graph
zimg_filter_graph * alpha_graph
Definition: vf_zscale.c:122
av_cold
#define av_cold
Definition: attributes.h:90
inputs
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 inputs
Definition: filter_design.txt:243
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:401
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:103
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:257
AVCHROMA_LOC_TOP
@ AVCHROMA_LOC_TOP
Definition: pixfmt.h:600
ZScaleContext
Definition: vf_zscale.c:78
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
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:402
ZScaleContext::force_original_aspect_ratio
int force_original_aspect_ratio
Definition: vf_zscale.c:114
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:509
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:226
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:459
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
var_name
var_name
Definition: noise_bsf.c:47
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:386
realign_frame
static int realign_frame(const AVPixFmtDescriptor *desc, AVFrame **frame)
Definition: vf_zscale.c:508
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:400
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:460
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:68
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
AVCOL_PRI_SMPTE240M
@ AVCOL_PRI_SMPTE240M
identical to above, also called "SMPTE C" even though it uses D65
Definition: pixfmt.h:457
color_range
color_range
Definition: vf_selectivecolor.c:44
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:451
NAN
#define NAN
Definition: mathematics.h:64
f
#define f(width, name)
Definition: cbs_vp9.c:255
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:517
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:455
AVCOL_PRI_SMPTE170M
@ AVCOL_PRI_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:456
if
if(ret)
Definition: filter_design.txt:179
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:408
opts
AVDictionary * opts
Definition: movenc.c:50
ZScaleContext::params
zimg_graph_builder_params params
Definition: vf_zscale.c:121
print_zimg_error
static int print_zimg_error(AVFilterContext *ctx)
Definition: vf_zscale.c:320
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:537
ZScaleContext::out_range
enum AVColorRange in_range out_range
Definition: vf_zscale.c:127
FLAGS
#define FLAGS
Definition: vf_zscale.c:782
AVCHROMA_LOC_LEFT
@ AVCHROMA_LOC_LEFT
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:597
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:599
AVCOL_TRC_IEC61966_2_4
@ AVCOL_TRC_IEC61966_2_4
IEC 61966-2-4.
Definition: pixfmt.h:485
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
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:341
AVComponentDescriptor::plane
int plane
Which of the 4 planes contains the component.
Definition: pixdesc.h:34
AVCOL_PRI_BT709
@ AVCOL_PRI_BT709
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP 177 Annex B
Definition: pixfmt.h:450
parseutils.h
convert_range
static int convert_range(enum AVColorRange color_range)
Definition: vf_zscale.c:451
ZScaleContext::out_v_chr_pos
int out_v_chr_pos
Definition: vf_zscale.c:110
AVCOL_TRC_BT2020_10
@ AVCOL_TRC_BT2020_10
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:488
AVCOL_SPC_YCGCO
@ AVCOL_SPC_YCGCO
used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16
Definition: pixfmt.h:511
ZScaleContext::dither
int dither
Definition: vf_zscale.c:88
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:390
ff_vf_zscale
const AVFilter ff_vf_zscale
Definition: vf_zscale.c:929
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:404
AVPixFmtDescriptor::flags
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:94
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:542
AVCOL_PRI_BT2020
@ AVCOL_PRI_BT2020
ITU-R BT2020.
Definition: pixfmt.h:459
AVCOL_TRC_SMPTE2084
@ AVCOL_TRC_SMPTE2084
SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems.
Definition: pixfmt.h:490
AVCOL_PRI_SMPTE431
@ AVCOL_PRI_SMPTE431
SMPTE ST 431-2 (2011) / DCI P3.
Definition: pixfmt.h:462
ZScaleContext::in_v_chr_pos
int in_v_chr_pos
Definition: vf_zscale.c:112
eval.h
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:116
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:481
AVCOL_PRI_FILM
@ AVCOL_PRI_FILM
colour filters using Illuminant C
Definition: pixfmt.h:458
AV_WN32
#define AV_WN32(p, v)
Definition: intreadwrite.h:376
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:678
AVCOL_TRC_LOG
@ AVCOL_TRC_LOG
"Logarithmic transfer characteristic (100:1 range)"
Definition: pixfmt.h:483
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:418
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:394
size
int size
Definition: twinvq_data.h:10344
ZScaleContext::primaries_in
int primaries_in
Definition: vf_zscale.c:97
ZScaleContext::approximate_gamma
int approximate_gamma
Definition: vf_zscale.c:102
ZScaleContext::alpha_dst_format
zimg_image_format alpha_dst_format
Definition: vf_zscale.c:120
VAR_OHSUB
@ VAR_OHSUB
Definition: vf_zscale.c:73
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:396
ZScaleContext::graph
zimg_filter_graph * graph
Definition: vf_zscale.c:122
AVCHROMA_LOC_UNSPECIFIED
@ AVCHROMA_LOC_UNSPECIFIED
Definition: pixfmt.h:596
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:376
VAR_IN_W
@ VAR_IN_W
Definition: vf_zscale.c:64
avfilter_vf_zscale_outputs
static const AVFilterPad avfilter_vf_zscale_outputs[]
Definition: vf_zscale.c:920
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:428
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:148
VARS_NB
@ VARS_NB
Definition: vf_zscale.c:75
AVCOL_SPC_CHROMA_DERIVED_NCL
@ AVCOL_SPC_CHROMA_DERIVED_NCL
Chromaticity-derived non-constant luminance system.
Definition: pixfmt.h:516
VAR_HSUB
@ VAR_HSUB
Definition: vf_zscale.c:71
AVCOL_TRC_BT709
@ AVCOL_TRC_BT709
also ITU-R BT1361
Definition: pixfmt.h:475
internal.h
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:595
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:510
AVCOL_SPC_BT2020_NCL
@ AVCOL_SPC_BT2020_NCL
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:513
filter_frame
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_zscale.c:546
internal.h
init_dict
static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts)
Definition: vf_zscale.c:131
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:406
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:502
ZScaleContext::tmp_size
size_t tmp_size
Definition: vf_zscale.c:117
ZScaleContext::out_colorspace
enum AVColorSpace in_colorspace out_colorspace
Definition: vf_zscale.c:124
VAR_IW
@ VAR_IW
Definition: vf_zscale.c:64
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
ZScaleContext::w
int w
New dimensions.
Definition: vf_zscale.c:87
ZScaleContext::trc
int trc
Definition: vf_zscale.c:91
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:67
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:505
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:128
ZScaleContext::chromal_in
int chromal_in
Definition: vf_zscale.c:99
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:559
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:388
AVFilter
Filter definition.
Definition: avfilter.h:145
VAR_IH
@ VAR_IH
Definition: vf_zscale.c:65
AVCOL_PRI_BT470M
@ AVCOL_PRI_BT470M
also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:453
ret
ret
Definition: filter_design.txt:187
ZScaleContext::trc_in
int trc_in
Definition: vf_zscale.c:96
ZScaleContext::size_str
char * size_str
Definition: vf_zscale.c:100
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:425
convert_chroma_location
static int convert_chroma_location(enum AVChromaLocation chroma_location)
Definition: vf_zscale.c:330
AVFrame::sample_aspect_ratio
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:391
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:393
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:398
AVFrame::height
int height
Definition: frame.h:361
AVCOL_TRC_ARIB_STD_B67
@ AVCOL_TRC_ARIB_STD_B67
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:494
AVCHROMA_LOC_CENTER
@ AVCHROMA_LOC_CENTER
MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0.
Definition: pixfmt.h:598
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:507
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:419
VAR_IN_H
@ VAR_IN_H
Definition: vf_zscale.c:65
VAR_OVSUB
@ VAR_OVSUB
Definition: vf_zscale.c:74
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:480
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:781
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:333
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
desc
const char * desc
Definition: libsvtav1.c:79
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
convert_trc
static int convert_trc(enum AVColorTransferCharacteristic color_trc)
Definition: vf_zscale.c:383
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:463
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:241
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
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
format
fg outputs[0] format
Definition: ffmpeg_filter.c:175
VAR_DAR
@ VAR_DAR
Definition: vf_zscale.c:70
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:334
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:28
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(zscale)
ZScaleContext::nominal_peak_luminance
double nominal_peak_luminance
Definition: vf_zscale.c:101
ZScaleContext::out_trc
enum AVColorTransferCharacteristic in_trc out_trc
Definition: vf_zscale.c:125
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:399
avstring.h
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:228
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:504
AVColorRange
AVColorRange
Visual content value range.
Definition: pixfmt.h:541
int
int
Definition: ffmpeg_filter.c:156
AVCOL_SPC_ICTCP
@ AVCOL_SPC_ICTCP
ITU-R BT.2100-0, ICtCp.
Definition: pixfmt.h:518
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:233
snprintf
#define snprintf
Definition: snprintf.h:34
VAR_OUT_H
@ VAR_OUT_H
Definition: vf_zscale.c:67
color_primaries
static const struct ColorPrimaries color_primaries[AVCOL_PRI_NB]
Definition: vf_colorspace.c:211
ZScaleContext::out_h_chr_pos
int out_h_chr_pos
Definition: vf_zscale.c:109
AVCHROMA_LOC_BOTTOMLEFT
@ AVCHROMA_LOC_BOTTOMLEFT
Definition: pixfmt.h:601
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
ZScaleContext::tmp
void * tmp
Definition: vf_zscale.c:116
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:397
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:2460
ZScaleContext::w_expr
char * w_expr
width expression string
Definition: vf_zscale.c:106
avfilter_vf_zscale_inputs
static const AVFilterPad avfilter_vf_zscale_inputs[]
Definition: vf_zscale.c:911
dither
static const uint8_t dither[8][8]
Definition: vf_fspp.c:58