FFmpeg
vf_zscale.c
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1 /*
2  * Copyright (c) 2015 Paul B Mahol
3  * Copyright (c) 2022 Victoria Zhislina, Intel
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * zscale video filter using z.lib library
25  */
26 
27 #include <float.h>
28 #include <stdio.h>
29 #include <string.h>
30 
31 #include <zimg.h>
32 
33 #include "avfilter.h"
34 #include "formats.h"
35 #include "internal.h"
36 #include "video.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/eval.h"
39 #include "libavutil/internal.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/parseutils.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/imgutils.h"
46 
47 #define ZIMG_ALIGNMENT 64
48 #define MIN_TILESIZE 64
49 #define MAX_THREADS 64
50 
51 static const char *const var_names[] = {
52  "in_w", "iw",
53  "in_h", "ih",
54  "out_w", "ow",
55  "out_h", "oh",
56  "a",
57  "sar",
58  "dar",
59  "hsub",
60  "vsub",
61  "ohsub",
62  "ovsub",
63  NULL
64 };
65 
66 enum var_name {
79 };
80 
81 typedef struct ZScaleContext {
82  const AVClass *class;
83 
84  /**
85  * New dimensions. Special values are:
86  * 0 = original width/height
87  * -1 = keep original aspect
88  * -N = try to keep aspect but make sure it is divisible by N
89  */
90  int w, h;
91  int dither;
92  int filter;
94  int trc;
95  int primaries;
96  int range;
97  int chromal;
99  int trc_in;
101  int range_in;
103  char *size_str;
106  double param_a;
107  double param_b;
108 
109  char *w_expr; ///< width expression string
110  char *h_expr; ///< height expression string
111 
116 
119 
120  void *tmp[MAX_THREADS]; //separate for each thread;
127 
128  zimg_image_format src_format, dst_format;
129  zimg_image_format alpha_src_format, alpha_dst_format;
130  zimg_image_format src_format_tmp, dst_format_tmp;
132  zimg_graph_builder_params alpha_params, params;
133  zimg_graph_builder_params alpha_params_tmp, params_tmp;
134  zimg_filter_graph *alpha_graph[MAX_THREADS], *graph[MAX_THREADS];
135 
136  enum AVColorSpace in_colorspace, out_colorspace;
138  enum AVColorPrimaries in_primaries, out_primaries;
139  enum AVColorRange in_range, out_range;
140  enum AVChromaLocation in_chromal, out_chromal;
141 } ZScaleContext;
142 
143 typedef struct ThreadData {
145  AVFrame *in, *out;
146 } ThreadData;
147 
149 {
150  ZScaleContext *s = ctx->priv;
151  int ret;
152  int i;
153  for (i = 0; i < MAX_THREADS; i++) {
154  s->tmp[i] = NULL;
155  s->graph[i] = NULL;
156  s->alpha_graph[i] = NULL;
157  }
158  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
159  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
160  zimg_image_format_default(&s->src_format_tmp, ZIMG_API_VERSION);
161  zimg_image_format_default(&s->dst_format_tmp, ZIMG_API_VERSION);
162 
163  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
164  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
165  zimg_image_format_default(&s->alpha_src_format_tmp, ZIMG_API_VERSION);
166  zimg_image_format_default(&s->alpha_dst_format_tmp, ZIMG_API_VERSION);
167 
168  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
169  zimg_graph_builder_params_default(&s->params_tmp, ZIMG_API_VERSION);
170  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
171  zimg_graph_builder_params_default(&s->alpha_params_tmp, ZIMG_API_VERSION);
172 
173  if (s->size_str && (s->w_expr || s->h_expr)) {
175  "Size and width/height expressions cannot be set at the same time.\n");
176  return AVERROR(EINVAL);
177  }
178 
179  if (s->w_expr && !s->h_expr)
180  FFSWAP(char *, s->w_expr, s->size_str);
181 
182  if (s->size_str) {
183  char buf[32];
184  if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) {
186  "Invalid size '%s'\n", s->size_str);
187  return ret;
188  }
189  snprintf(buf, sizeof(buf)-1, "%d", s->w);
190  av_opt_set(s, "w", buf, 0);
191  snprintf(buf, sizeof(buf)-1, "%d", s->h);
192  av_opt_set(s, "h", buf, 0);
193  }
194  if (!s->w_expr)
195  av_opt_set(s, "w", "iw", 0);
196  if (!s->h_expr)
197  av_opt_set(s, "h", "ih", 0);
198 
199  return 0;
200 }
201 
203 {
204  static const enum AVPixelFormat pixel_fmts[] = {
225  };
226  int ret;
227 
228  ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->outcfg.formats);
229  if (ret < 0)
230  return ret;
231  return ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->incfg.formats);
232 }
233 
234 static void slice_params(ZScaleContext *s, int out_h, int in_h)
235 {
236  int slice_size;
237 
238  slice_size = (out_h + (s->nb_threads / 2)) / s->nb_threads;
239  if (slice_size % 2)
240  slice_size += 1;
241  s->out_slice_start[0] = 0;
242  s->out_slice_end[0] = FFMIN(out_h, slice_size);
243  for (int i = 1; i < s->nb_threads - 1; i++) {
244  s->out_slice_start[i] = s->out_slice_end[i-1];
245  s->out_slice_end[i] = s->out_slice_start[i] + slice_size;
246  }
247 
248  if (s->nb_threads > 1) {
249  s->out_slice_start[s->nb_threads - 1] = s->out_slice_end[s->nb_threads - 2];
250  s->out_slice_end[s->nb_threads - 1] = out_h;
251  }
252 
253  for (int i = 0; i < s->nb_threads; i++) {
254  s->in_slice_start[i] = s->out_slice_start[i] * in_h / (double)out_h;
255  s->in_slice_end[i] = s->out_slice_end[i] * in_h / (double)out_h;
256  }
257 }
258 
259 static int config_props(AVFilterLink *outlink)
260 {
261  AVFilterContext *ctx = outlink->src;
262  AVFilterLink *inlink = outlink->src->inputs[0];
263  ZScaleContext *s = ctx->priv;
265  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format);
266  int64_t w, h;
267  double var_values[VARS_NB], res;
268  char *expr;
269  int ret;
270  int factor_w, factor_h;
271 
272  var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
273  var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
274  var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
275  var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
276  var_values[VAR_A] = (double) inlink->w / inlink->h;
277  var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
278  (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
279  var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
280  var_values[VAR_HSUB] = 1 << desc->log2_chroma_w;
281  var_values[VAR_VSUB] = 1 << desc->log2_chroma_h;
282  var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w;
283  var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h;
284 
285  /* evaluate width and height */
286  av_expr_parse_and_eval(&res, (expr = s->w_expr),
287  var_names, var_values,
288  NULL, NULL, NULL, NULL, NULL, 0, ctx);
289  s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;
290  if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
291  var_names, var_values,
292  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
293  goto fail;
294  s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;
295  /* evaluate again the width, as it may depend on the output height */
296  if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
297  var_names, var_values,
298  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
299  goto fail;
300  s->w = res;
301 
302  w = s->w;
303  h = s->h;
304 
305  /* Check if it is requested that the result has to be divisible by a some
306  * factor (w or h = -n with n being the factor). */
307  factor_w = 1;
308  factor_h = 1;
309  if (w < -1) {
310  factor_w = -w;
311  }
312  if (h < -1) {
313  factor_h = -h;
314  }
315 
316  if (w < 0 && h < 0)
317  s->w = s->h = 0;
318 
319  if (!(w = s->w))
320  w = inlink->w;
321  if (!(h = s->h))
322  h = inlink->h;
323 
324  /* Make sure that the result is divisible by the factor we determined
325  * earlier. If no factor was set, it is nothing will happen as the default
326  * factor is 1 */
327  if (w < 0)
328  w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w;
329  if (h < 0)
330  h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h;
331 
332  /* Note that force_original_aspect_ratio may overwrite the previous set
333  * dimensions so that it is not divisible by the set factors anymore. */
334  if (s->force_original_aspect_ratio) {
335  int tmp_w = av_rescale(h, inlink->w, inlink->h);
336  int tmp_h = av_rescale(w, inlink->h, inlink->w);
337 
338  if (s->force_original_aspect_ratio == 1) {
339  w = FFMIN(tmp_w, w);
340  h = FFMIN(tmp_h, h);
341  } else {
342  w = FFMAX(tmp_w, w);
343  h = FFMAX(tmp_h, h);
344  }
345  }
346 
347  if (w > INT_MAX || h > INT_MAX ||
348  (h * inlink->w) > INT_MAX ||
349  (w * inlink->h) > INT_MAX)
350  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
351 
352  outlink->w = w;
353  outlink->h = h;
354 
355  s->first_time = 1;
356 
357  if (inlink->sample_aspect_ratio.num){
358  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
359  } else
360  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
361 
362  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",
363  inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
364  inlink->sample_aspect_ratio.num, inlink->sample_aspect_ratio.den,
365  outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format),
366  outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den);
367  return 0;
368 
369 fail:
371  "Error when evaluating the expression '%s'.\n"
372  "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n",
373  expr, s->w_expr, s->h_expr);
374  return ret;
375 }
376 
378 {
379  char err_msg[1024];
380  int err_code = zimg_get_last_error(err_msg, sizeof(err_msg));
381 
382  av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg);
383 
384  return AVERROR_EXTERNAL;
385 }
386 
387 static int convert_chroma_location(enum AVChromaLocation chroma_location)
388 {
389  switch (chroma_location) {
391  case AVCHROMA_LOC_LEFT:
392  return ZIMG_CHROMA_LEFT;
393  case AVCHROMA_LOC_CENTER:
394  return ZIMG_CHROMA_CENTER;
396  return ZIMG_CHROMA_TOP_LEFT;
397  case AVCHROMA_LOC_TOP:
398  return ZIMG_CHROMA_TOP;
400  return ZIMG_CHROMA_BOTTOM_LEFT;
401  case AVCHROMA_LOC_BOTTOM:
402  return ZIMG_CHROMA_BOTTOM;
403  }
404  return ZIMG_CHROMA_LEFT;
405 }
406 
407 static int convert_matrix(enum AVColorSpace colorspace)
408 {
409  switch (colorspace) {
410  case AVCOL_SPC_RGB:
411  return ZIMG_MATRIX_RGB;
412  case AVCOL_SPC_BT709:
413  return ZIMG_MATRIX_709;
415  return ZIMG_MATRIX_UNSPECIFIED;
416  case AVCOL_SPC_FCC:
417  return ZIMG_MATRIX_FCC;
418  case AVCOL_SPC_BT470BG:
419  return ZIMG_MATRIX_470BG;
420  case AVCOL_SPC_SMPTE170M:
421  return ZIMG_MATRIX_170M;
422  case AVCOL_SPC_SMPTE240M:
423  return ZIMG_MATRIX_240M;
424  case AVCOL_SPC_YCGCO:
425  return ZIMG_MATRIX_YCGCO;
427  return ZIMG_MATRIX_2020_NCL;
428  case AVCOL_SPC_BT2020_CL:
429  return ZIMG_MATRIX_2020_CL;
431  return ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL;
433  return ZIMG_MATRIX_CHROMATICITY_DERIVED_CL;
434  case AVCOL_SPC_ICTCP:
435  return ZIMG_MATRIX_ICTCP;
436  }
437  return ZIMG_MATRIX_UNSPECIFIED;
438 }
439 
440 static int convert_trc(enum AVColorTransferCharacteristic color_trc)
441 {
442  switch (color_trc) {
444  return ZIMG_TRANSFER_UNSPECIFIED;
445  case AVCOL_TRC_BT709:
446  return ZIMG_TRANSFER_709;
447  case AVCOL_TRC_GAMMA22:
448  return ZIMG_TRANSFER_470_M;
449  case AVCOL_TRC_GAMMA28:
450  return ZIMG_TRANSFER_470_BG;
451  case AVCOL_TRC_SMPTE170M:
452  return ZIMG_TRANSFER_601;
453  case AVCOL_TRC_SMPTE240M:
454  return ZIMG_TRANSFER_240M;
455  case AVCOL_TRC_LINEAR:
456  return ZIMG_TRANSFER_LINEAR;
457  case AVCOL_TRC_LOG:
458  return ZIMG_TRANSFER_LOG_100;
459  case AVCOL_TRC_LOG_SQRT:
460  return ZIMG_TRANSFER_LOG_316;
462  return ZIMG_TRANSFER_IEC_61966_2_4;
463  case AVCOL_TRC_BT2020_10:
464  return ZIMG_TRANSFER_2020_10;
465  case AVCOL_TRC_BT2020_12:
466  return ZIMG_TRANSFER_2020_12;
467  case AVCOL_TRC_SMPTE2084:
468  return ZIMG_TRANSFER_ST2084;
470  return ZIMG_TRANSFER_ARIB_B67;
472  return ZIMG_TRANSFER_IEC_61966_2_1;
473  }
474  return ZIMG_TRANSFER_UNSPECIFIED;
475 }
476 
478 {
479  switch (color_primaries) {
481  return ZIMG_PRIMARIES_UNSPECIFIED;
482  case AVCOL_PRI_BT709:
483  return ZIMG_PRIMARIES_709;
484  case AVCOL_PRI_BT470M:
485  return ZIMG_PRIMARIES_470_M;
486  case AVCOL_PRI_BT470BG:
487  return ZIMG_PRIMARIES_470_BG;
488  case AVCOL_PRI_SMPTE170M:
489  return ZIMG_PRIMARIES_170M;
490  case AVCOL_PRI_SMPTE240M:
491  return ZIMG_PRIMARIES_240M;
492  case AVCOL_PRI_FILM:
493  return ZIMG_PRIMARIES_FILM;
494  case AVCOL_PRI_BT2020:
495  return ZIMG_PRIMARIES_2020;
496  case AVCOL_PRI_SMPTE428:
497  return ZIMG_PRIMARIES_ST428;
498  case AVCOL_PRI_SMPTE431:
499  return ZIMG_PRIMARIES_ST431_2;
500  case AVCOL_PRI_SMPTE432:
501  return ZIMG_PRIMARIES_ST432_1;
502  case AVCOL_PRI_JEDEC_P22:
503  return ZIMG_PRIMARIES_EBU3213_E;
504  }
505  return ZIMG_PRIMARIES_UNSPECIFIED;
506 }
507 
509 {
510  switch (color_range) {
512  case AVCOL_RANGE_MPEG:
513  return ZIMG_RANGE_LIMITED;
514  case AVCOL_RANGE_JPEG:
515  return ZIMG_RANGE_FULL;
516  }
517  return ZIMG_RANGE_LIMITED;
518 }
519 
520 static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range)
521 {
522  switch (color_range) {
523  case ZIMG_RANGE_LIMITED:
524  return AVCOL_RANGE_MPEG;
525  case ZIMG_RANGE_FULL:
526  return AVCOL_RANGE_JPEG;
527  }
529 }
530 
531 /* returns 0 if image formats are the same and 1 otherwise */
532 static int compare_zimg_image_formats(zimg_image_format *img_fmt0, zimg_image_format *img_fmt1)
533 {
534  return ((img_fmt0->chroma_location != img_fmt1->chroma_location) ||
535 #if ZIMG_API_VERSION >= 0x204
536  (img_fmt0->alpha != img_fmt1->alpha) ||
537 #endif
538  (img_fmt0->color_family != img_fmt1->color_family) ||
539  (img_fmt0->color_primaries != img_fmt1->color_primaries) ||
540  (img_fmt0->depth != img_fmt1->depth) ||
541  (img_fmt0->field_parity != img_fmt1->field_parity) ||
542  (img_fmt0->height != img_fmt1->height) ||
543  (img_fmt0->matrix_coefficients != img_fmt1->matrix_coefficients) ||
544  (img_fmt0->pixel_range != img_fmt1->pixel_range) ||
545  (img_fmt0->pixel_type != img_fmt1->pixel_type) ||
546  (img_fmt0->subsample_h != img_fmt1->subsample_h) ||
547  (img_fmt0->subsample_w != img_fmt1->subsample_w) ||
548  (img_fmt0->transfer_characteristics != img_fmt1->transfer_characteristics) ||
549  (img_fmt0->width != img_fmt1->width));
550 }
551 
552 /* returns 0 if graph builder parameters are the same and 1 otherwise */
553 static int compare_zimg_graph_builder_params(zimg_graph_builder_params *parm0, zimg_graph_builder_params *parm1)
554 {
555  /* the parameters that could be changed inside a single ffmpeg zscale invocation are checked only
556  and NaN values that are default for some params are treated properly*/
557  int ret = (parm0->allow_approximate_gamma != parm1->allow_approximate_gamma) ||
558  (parm0->dither_type != parm1->dither_type) ||
559  (parm0->resample_filter != parm1->resample_filter) ||
560  (parm0->resample_filter_uv != parm1->resample_filter_uv);
561 
562  if ((isnan(parm0->nominal_peak_luminance) == 0) || (isnan(parm1->nominal_peak_luminance) == 0))
563  ret = ret || (parm0->nominal_peak_luminance != parm1->nominal_peak_luminance);
564  if ((isnan(parm0->filter_param_a) == 0) || (isnan(parm1->filter_param_a) == 0))
565  ret = ret || (parm0->filter_param_a != parm1->filter_param_a);
566  if ((isnan(parm0->filter_param_a_uv) == 0) || (isnan(parm1->filter_param_a_uv) == 0))
567  ret = ret || (parm0->filter_param_a_uv != parm1->filter_param_a_uv);
568  if ((isnan(parm0->filter_param_b) == 0) || (isnan(parm1->filter_param_b) == 0))
569  ret = ret || (parm0->filter_param_b != parm1->filter_param_b);
570  if ((isnan(parm0->filter_param_b_uv) == 0) || (isnan(parm1->filter_param_b_uv) == 0))
571  ret = ret || (parm0->filter_param_b_uv != parm1->filter_param_b_uv);
572 
573  return ret;
574 }
575 
576 static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc,
577  int colorspace, int primaries, int transfer, int range, int location)
578 {
579  format->width = frame->width;
580  format->height = frame->height;
581  format->subsample_w = desc->log2_chroma_w;
582  format->subsample_h = desc->log2_chroma_h;
583  format->depth = desc->comp[0].depth;
584  format->pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
585  format->color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
586  format->matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : colorspace == -1 ? convert_matrix(frame->colorspace) : colorspace;
587  format->color_primaries = primaries == -1 ? convert_primaries(frame->color_primaries) : primaries;
588  format->transfer_characteristics = transfer == -1 ? convert_trc(frame->color_trc) : transfer;
589  format->pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : range == -1 ? convert_range(frame->color_range) : range;
590  format->chroma_location = location == -1 ? convert_chroma_location(frame->chroma_location) : location;
591 }
592 
593 static int graphs_build(AVFrame *in, AVFrame *out, const AVPixFmtDescriptor *desc, const AVPixFmtDescriptor *out_desc,
594  AVFilterContext *ctx, int job_nr, int n_jobs)
595 {
596  ZScaleContext *s = ctx->priv;
597  int ret;
598  size_t size;
599  zimg_image_format src_format;
600  zimg_image_format dst_format;
601  zimg_image_format alpha_src_format;
602  zimg_image_format alpha_dst_format;
603  const double in_slice_start = s->in_slice_start[job_nr];
604  const double in_slice_end = s->in_slice_end[job_nr];
605  const int out_slice_start = s->out_slice_start[job_nr];
606  const int out_slice_end = s->out_slice_end[job_nr];
607 
608  src_format = s->src_format;
609  dst_format = s->dst_format;
610  /* The input slice is specified through the active_region field,
611  unlike the output slice.
612  according to zimg requirements input and output slices should have even dimensions */
613  src_format.active_region.width = in->width;
614  src_format.active_region.height = in_slice_end - in_slice_start;
615  src_format.active_region.left = 0;
616  src_format.active_region.top = in_slice_start;
617  //dst now is the single tile only!!
618  dst_format.width = out->width;
619  dst_format.height = out_slice_end - out_slice_start;
620 
621  if (s->graph[job_nr]) {
622  zimg_filter_graph_free(s->graph[job_nr]);
623  }
624  s->graph[job_nr] = zimg_filter_graph_build(&src_format, &dst_format, &s->params);
625  if (!s->graph[job_nr])
626  return print_zimg_error(ctx);
627 
628  ret = zimg_filter_graph_get_tmp_size(s->graph[job_nr], &size);
629  if (ret)
630  return print_zimg_error(ctx);
631 
632  if (s->tmp[job_nr])
633  av_freep(&s->tmp[job_nr]);
634  s->tmp[job_nr] = av_calloc(size, 1);
635  if (!s->tmp[job_nr])
636  return AVERROR(ENOMEM);
637 
638  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && out_desc->flags & AV_PIX_FMT_FLAG_ALPHA) {
639  alpha_src_format = s->alpha_src_format;
640  alpha_dst_format = s->alpha_dst_format;
641  /* The input slice is specified through the active_region field, unlike the output slice.
642  according to zimg requirements input and output slices should have even dimentions */
643  alpha_src_format.active_region.width = in->width;
644  alpha_src_format.active_region.height = in_slice_end - in_slice_start;
645  alpha_src_format.active_region.left = 0;
646  alpha_src_format.active_region.top = in_slice_start;
647  //dst now is the single tile only!!
648  alpha_dst_format.width = out->width;
649  alpha_dst_format.height = out_slice_end - out_slice_start;
650 
651  if (s->alpha_graph[job_nr]) {
652  zimg_filter_graph_free(s->alpha_graph[job_nr]);
653  }
654  s->alpha_graph[job_nr] = zimg_filter_graph_build(&alpha_src_format, &alpha_dst_format, &s->alpha_params);
655  if (!s->alpha_graph[job_nr])
656  return print_zimg_error(ctx);
657  }
658  return 0;
659 }
660 
661 static int realign_frame(const AVPixFmtDescriptor *desc, AVFrame **frame, int needs_copy)
662 {
663  AVFrame *aligned = NULL;
664  int ret = 0, plane, planes;
665 
666  /* Realign any unaligned input frame. */
667  planes = av_pix_fmt_count_planes(desc->nb_components);
668  for (plane = 0; plane < planes; plane++) {
669  int p = desc->comp[plane].plane;
670  if ((uintptr_t)(*frame)->data[p] % ZIMG_ALIGNMENT || (*frame)->linesize[p] % ZIMG_ALIGNMENT) {
671  if (!(aligned = av_frame_alloc())) {
672  ret = AVERROR(ENOMEM);
673  goto fail;
674  }
675 
676  aligned->format = (*frame)->format;
677  aligned->width = (*frame)->width;
678  aligned->height = (*frame)->height;
679 
681  goto fail;
682 
683  if (needs_copy && (ret = av_frame_copy(aligned, *frame)) < 0)
684  goto fail;
685 
686  if (needs_copy && (ret = av_frame_copy_props(aligned, *frame)) < 0)
687  goto fail;
688 
690  *frame = aligned;
691  return 0;
692  }
693  }
694 
695 fail:
697  return ret;
698 }
699 
701 {
702  if (s->colorspace != -1)
703  frame->colorspace = (int)s->dst_format.matrix_coefficients;
704 
705  if (s->primaries != -1)
706  frame->color_primaries = (int)s->dst_format.color_primaries;
707 
708  if (s->range != -1)
709  frame->color_range = convert_range_from_zimg(s->dst_format.pixel_range);
710 
711  if (s->trc != -1)
712  frame->color_trc = (int)s->dst_format.transfer_characteristics;
713 
714  if (s->chromal != -1)
715  frame->chroma_location = (int)s->dst_format.chroma_location + 1;
716 }
717 
718 static int filter_slice(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
719 {
720  ThreadData *td = data;
721  int ret = 0;
722  int p;
723  int need_gb;
724  ZScaleContext *s = ctx->priv;
725  zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
726  zimg_image_buffer dst_buf = { ZIMG_API_VERSION };
727  const int out_slice_start = s->out_slice_start[job_nr];
728 
729  /* create zimg filter graphs for each thread
730  only if not created earlier or there is some change in frame parameters */
731  need_gb = compare_zimg_image_formats(&s->src_format, &s->src_format_tmp) ||
732  compare_zimg_image_formats(&s->dst_format, &s->dst_format_tmp) ||
733  compare_zimg_graph_builder_params(&s->params, &s->params_tmp);
734  if(td->desc->flags & AV_PIX_FMT_FLAG_ALPHA && td->odesc->flags & AV_PIX_FMT_FLAG_ALPHA)
735  need_gb = need_gb || compare_zimg_image_formats(&s->alpha_src_format, &s->alpha_src_format_tmp) ||
736  compare_zimg_image_formats(&s->alpha_dst_format, &s->alpha_dst_format_tmp) ||
737  compare_zimg_graph_builder_params(&s->alpha_params, &s->alpha_params_tmp);
738 
739  if (need_gb){
740  ret = graphs_build(td->in, td->out, td->desc, td->odesc, ctx, job_nr, n_jobs);
741  if (ret < 0)
742  return print_zimg_error(ctx);
743  }
744  for (int i = 0; i < 3; i++) {
745  const int vsamp = i >= 1 ? td->odesc->log2_chroma_h : 0;
746 
747  p = td->desc->comp[i].plane;
748 
749  src_buf.plane[i].data = td->in->data[p];
750  src_buf.plane[i].stride = td->in->linesize[p];
751  src_buf.plane[i].mask = -1;
752 
753  p = td->odesc->comp[i].plane;
754  dst_buf.plane[i].data = td->out->data[p] + td->out->linesize[p] * (out_slice_start >> vsamp);
755  dst_buf.plane[i].stride = td->out->linesize[p];
756  dst_buf.plane[i].mask = -1;
757  }
758  if (!s->graph[job_nr])
759  return AVERROR(EINVAL);
760  ret = zimg_filter_graph_process(s->graph[job_nr], &src_buf, &dst_buf, s->tmp[job_nr], 0, 0, 0, 0);
761  if (ret)
762  return print_zimg_error(ctx);
763 
764  if (td->desc->flags & AV_PIX_FMT_FLAG_ALPHA && td->odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
765  src_buf.plane[0].data = td->in->data[3];
766  src_buf.plane[0].stride = td->in->linesize[3];
767  src_buf.plane[0].mask = -1;
768 
769  dst_buf.plane[0].data = td->out->data[3] + td->out->linesize[3] * out_slice_start;
770  dst_buf.plane[0].stride = td->out->linesize[3];
771  dst_buf.plane[0].mask = -1;
772 
773  if (!s->alpha_graph[job_nr])
774  return AVERROR(EINVAL);
775  ret = zimg_filter_graph_process(s->alpha_graph[job_nr], &src_buf, &dst_buf, s->tmp[job_nr], 0, 0, 0, 0);
776  if (ret)
777  return print_zimg_error(ctx);
778  }
779  return 0;
780 }
781 
783 {
784  AVFilterContext *ctx = link->dst;
785  ZScaleContext *s = ctx->priv;
786  AVFilterLink *outlink = ctx->outputs[0];
788  const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format);
789  char buf[32];
790  int ret = 0;
791  AVFrame *out = NULL;
792  ThreadData td;
793 
794  //we need to use this filter if something is different for an input and output only
795  //otherwise - just copy the input frame to the output
796  if ((link->format != outlink->format) ||
797  (link->w != outlink->w) ||
798  (link->h != outlink->h) ||
799  s->first_time ||
800  (s->src_format.chroma_location != s->dst_format.chroma_location) ||
801  (s->src_format.color_family !=s->dst_format.color_family) ||
802  (s->src_format.color_primaries !=s->dst_format.color_primaries) ||
803  (s->src_format.depth !=s->dst_format.depth) ||
804  (s->src_format.matrix_coefficients !=s->dst_format.matrix_coefficients) ||
805  (s->src_format.field_parity !=s->dst_format.field_parity) ||
806  (s->src_format.pixel_range !=s->dst_format.pixel_range) ||
807  (s->src_format.pixel_type !=s->dst_format.pixel_type) ||
808  (s->src_format.transfer_characteristics !=s->dst_format.transfer_characteristics)
809  ){
810  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
811  if (!out) {
812  ret = AVERROR(ENOMEM);
813  goto fail;
814  }
815 
816  if ((ret = realign_frame(odesc, &out, 0)) < 0)
817  goto fail;
818 
820 
821  if ((ret = realign_frame(desc, &in, 1)) < 0)
822  goto fail;
823 
824  snprintf(buf, sizeof(buf)-1, "%d", outlink->w);
825  av_opt_set(s, "w", buf, 0);
826  snprintf(buf, sizeof(buf)-1, "%d", outlink->h);
827  av_opt_set(s, "h", buf, 0);
828 
829  link->dst->inputs[0]->format = in->format;
830  link->dst->inputs[0]->w = in->width;
831  link->dst->inputs[0]->h = in->height;
832 
833  s->nb_threads = av_clip(FFMIN(ff_filter_get_nb_threads(ctx), FFMIN(link->h, outlink->h) / MIN_TILESIZE), 1, MAX_THREADS);
834  s->in_colorspace = in->colorspace;
835  s->in_trc = in->color_trc;
836  s->in_primaries = in->color_primaries;
837  s->in_range = in->color_range;
838  s->out_colorspace = out->colorspace;
839  s->out_trc = out->color_trc;
840  s->out_primaries = out->color_primaries;
841  s->out_range = out->color_range;
842 
843  slice_params(s, out->height, in->height);
844 
845  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
846  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
847  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
848 
849  format_init(&s->src_format, in, desc, s->colorspace_in,
850  s->primaries_in, s->trc_in, s->range_in, s->chromal_in);
851  format_init(&s->dst_format, out, odesc, s->colorspace,
852  s->primaries, s->trc, s->range, s->chromal);
853  s->first_time = 0;
854 
855  s->params.dither_type = s->dither;
856  s->params.cpu_type = ZIMG_CPU_AUTO;
857  s->params.resample_filter = s->filter;
858  s->params.resample_filter_uv = s->filter;
859  s->params.nominal_peak_luminance = s->nominal_peak_luminance;
860  s->params.allow_approximate_gamma = s->approximate_gamma;
861  s->params.filter_param_a = s->params.filter_param_a_uv = s->param_a;
862  s->params.filter_param_b = s->params.filter_param_b_uv = s->param_b;
863 
864  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
865  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
866  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
867  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
868 
869  s->alpha_params.dither_type = s->dither;
870  s->alpha_params.cpu_type = ZIMG_CPU_AUTO;
871  s->alpha_params.resample_filter = s->filter;
872 
873  s->alpha_src_format.width = in->width;
874  s->alpha_src_format.height = in->height;
875  s->alpha_src_format.depth = desc->comp[0].depth;
876  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;
877  s->alpha_src_format.color_family = ZIMG_COLOR_GREY;
878 
879  s->alpha_dst_format.depth = odesc->comp[0].depth;
880  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;
881  s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
882  }
883 
885  av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
886  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
887  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
888  INT_MAX);
889 
890  td.in = in;
891  td.out = out;
892  td.desc = desc;
893  td.odesc = odesc;
894 
895  memset(s->jobs_ret, 0, s->nb_threads * sizeof(*s->jobs_ret));
896  ret = ff_filter_execute(ctx, filter_slice, &td, s->jobs_ret, s->nb_threads);
897  for (int i = 0; ret >= 0 && i < s->nb_threads; i++)
898  if (s->jobs_ret[i] < 0)
899  ret = s->jobs_ret[i];
900  if (ret < 0) {
901  av_frame_free(&in);
902  av_frame_free(&out);
903  return ret;
904  }
905 
906  s->src_format_tmp = s->src_format;
907  s->dst_format_tmp = s->dst_format;
908  s->params_tmp = s->params;
909  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
910  s->alpha_src_format_tmp = s->alpha_src_format;
911  s->alpha_dst_format_tmp = s->alpha_dst_format;
912  s->alpha_params_tmp = s->alpha_params;
913  }
914 
915  if ((!(desc->flags & AV_PIX_FMT_FLAG_ALPHA)) && (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) ){
916  int x, y;
917  if (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) {
918  for (y = 0; y < out->height; y++) {
919  for (x = 0; x < out->width; x++) {
920  AV_WN32(out->data[3] + x * odesc->comp[3].step + y * out->linesize[3],
921  av_float2int(1.0f));
922  }
923  }
924  } else {
925  for (y = 0; y < outlink->h; y++)
926  memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w);
927  }
928  }
929  } else {
930  /*no need for any filtering */
931  return ff_filter_frame(outlink, in);
932  }
933 fail:
934  av_frame_free(&in);
935  if (ret) {
936  av_frame_free(&out);
937  return ret;
938  }
939 
940  return ff_filter_frame(outlink, out);
941 }
942 
944 {
945  ZScaleContext *s = ctx->priv;
946 
947  for (int i = 0; i < s->nb_threads; i++) {
948  av_freep(&s->tmp[i]);
949  if (s->graph[i]) {
950  zimg_filter_graph_free(s->graph[i]);
951  s->graph[i] = NULL;
952  }
953  if (s->alpha_graph[i]) {
954  zimg_filter_graph_free(s->alpha_graph[i]);
955  s->alpha_graph[i] = NULL;
956  }
957  }
958 }
959 
960 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
961  char *res, int res_len, int flags)
962 {
963  ZScaleContext *s = ctx->priv;
964  int ret;
965 
966  if ( !strcmp(cmd, "width") || !strcmp(cmd, "w")
967  || !strcmp(cmd, "height") || !strcmp(cmd, "h")) {
968 
969  int old_w = s->w;
970  int old_h = s->h;
971  AVFilterLink *outlink = ctx->outputs[0];
972 
973  av_opt_set(s, cmd, args, 0);
974  if ((ret = config_props(outlink)) < 0) {
975  s->w = old_w;
976  s->h = old_h;
977  }
978  } else
979  ret = AVERROR(ENOSYS);
980 
981  return ret;
982 }
983 
984 #define OFFSET(x) offsetof(ZScaleContext, x)
985 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
986 #define TFLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
987 
988 static const AVOption zscale_options[] = {
989  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
990  { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
991  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
992  { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
993  { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
994  { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
995  { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
996  { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
997  { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, "dither" },
998  { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, "dither" },
999  { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, "dither" },
1000  { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, "dither" },
1001  { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
1002  { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
1003  { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, "filter" },
1004  { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, "filter" },
1005  { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, "filter" },
1006  { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, "filter" },
1007  { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, "filter" },
1008  { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, "filter" },
1009  { "out_range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1010  { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1011  { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1012  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
1013  { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
1014  { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
1015  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
1016  { "tv", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
1017  { "pc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
1018  { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1019  { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1020  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "primaries" },
1021  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
1022  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
1023  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
1024  { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
1025  { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
1026  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
1027  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
1028  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_M}, 0, 0, FLAGS, "primaries" },
1029  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_BG}, 0, 0, FLAGS, "primaries" },
1030  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
1031  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
1032  { "film", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_FILM}, 0, 0, FLAGS, "primaries" },
1033  { "bt2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
1034  { "smpte428", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST428}, 0, 0, FLAGS, "primaries" },
1035  { "smpte431", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST431_2}, 0, 0, FLAGS, "primaries" },
1036  { "smpte432", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST432_1}, 0, 0, FLAGS, "primaries" },
1037  { "jedec-p22", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" },
1038  { "ebu3213", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" },
1039  { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1040  { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1041  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "transfer" },
1042  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
1043  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
1044  { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
1045  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
1046  { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
1047  { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
1048  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
1049  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_M}, 0, 0, FLAGS, "transfer" },
1050  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_BG}, 0, 0, FLAGS, "transfer" },
1051  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
1052  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
1053  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
1054  { "log100", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_100}, 0, 0, FLAGS, "transfer" },
1055  { "log316", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_316}, 0, 0, FLAGS, "transfer" },
1056  { "bt2020-10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
1057  { "bt2020-12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
1058  { "smpte2084", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ST2084}, 0, 0, FLAGS, "transfer" },
1059  { "iec61966-2-4", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_4},0, 0, FLAGS, "transfer" },
1060  { "iec61966-2-1", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_1},0, 0, FLAGS, "transfer" },
1061  { "arib-std-b67", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ARIB_B67}, 0, 0, FLAGS, "transfer" },
1062  { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1063  { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1064  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "matrix" },
1065  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
1066  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
1067  { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
1068  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
1069  { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
1070  { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
1071  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
1072  { "gbr", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_RGB}, 0, 0, FLAGS, "matrix" },
1073  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
1074  { "fcc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_FCC}, 0, 0, FLAGS, "matrix" },
1075  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
1076  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
1077  { "smpte2400m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_240M}, 0, 0, FLAGS, "matrix" },
1078  { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, "matrix" },
1079  { "bt2020nc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
1080  { "bt2020c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
1081  { "chroma-derived-nc",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL}, 0, 0, FLAGS, "matrix" },
1082  { "chroma-derived-c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_CL}, 0, 0, FLAGS, "matrix" },
1083  { "ictcp", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_ICTCP}, 0, 0, FLAGS, "matrix" },
1084  { "in_range", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1085  { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1086  { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1087  { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1088  { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1089  { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1090  { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1091  { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1092  { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1093  { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1094  { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1095  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "chroma" },
1096  { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, "chroma" },
1097  { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, "chroma" },
1098  { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, "chroma" },
1099  { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, "chroma" },
1100  { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, "chroma" },
1101  { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, "chroma" },
1102  { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1103  { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1104  { "npl", "set nominal peak luminance", OFFSET(nominal_peak_luminance), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, 0, DBL_MAX, FLAGS },
1105  { "agamma", "allow approximate gamma", OFFSET(approximate_gamma), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
1106  { "param_a", "parameter A, which is parameter \"b\" for bicubic, "
1107  "and the number of filter taps for lanczos", OFFSET(param_a), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
1108  { "param_b", "parameter B, which is parameter \"c\" for bicubic", OFFSET(param_b), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
1109  { NULL }
1110 };
1111 
1112 AVFILTER_DEFINE_CLASS(zscale);
1113 
1115  {
1116  .name = "default",
1117  .type = AVMEDIA_TYPE_VIDEO,
1118  .filter_frame = filter_frame,
1119  },
1120 };
1121 
1123  {
1124  .name = "default",
1125  .type = AVMEDIA_TYPE_VIDEO,
1126  .config_props = config_props,
1127  },
1128 };
1129 
1131  .name = "zscale",
1132  .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."),
1133  .init = init,
1134  .priv_size = sizeof(ZScaleContext),
1135  .priv_class = &zscale_class,
1136  .uninit = uninit,
1140  .process_command = process_command,
1141  .flags = AVFILTER_FLAG_SLICE_THREADS,
1142 };
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:101
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:449
AVFrame::color_trc
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:582
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:428
AVFrame::color_range
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:578
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
av_clip
#define av_clip
Definition: common.h:95
ZScaleContext::jobs_ret
int jobs_ret[MAX_THREADS]
Definition: vf_zscale.c:122
ZScaleContext::range_in
int range_in
Definition: vf_zscale.c:101
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:380
ZScaleContext::colorspace_in
int colorspace_in
Definition: vf_zscale.c:98
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:496
convert_range_from_zimg
static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range)
Definition: vf_zscale.c:520
ThreadData::odesc
const AVPixFmtDescriptor * odesc
Definition: vf_zscale.c:144
out
FILE * out
Definition: movenc.c:54
av_frame_get_buffer
int av_frame_get_buffer(AVFrame *frame, int align)
Allocate new buffer(s) for audio or video data.
Definition: frame.c:254
ZScaleContext::out_slice_end
int out_slice_end[MAX_THREADS]
Definition: vf_zscale.c:126
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_zscale.c:943
ZScaleContext::params_tmp
zimg_graph_builder_params params_tmp
Definition: vf_zscale.c:133
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:999
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2662
AVCOL_TRC_LINEAR
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:505
AVCHROMA_LOC_BOTTOM
@ AVCHROMA_LOC_BOTTOM
Definition: pixfmt.h:625
ZScaleContext::h_expr
char * h_expr
height expression string
Definition: vf_zscale.c:110
ZScaleContext::filter
int filter
Definition: vf_zscale.c:92
ZIMG_ALIGNMENT
#define ZIMG_ALIGNMENT
Definition: vf_zscale.c:47
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
AV_PIX_FMT_FLAG_FLOAT
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
Definition: pixdesc.h:158
AVFrame::color_primaries
enum AVColorPrimaries color_primaries
Definition: frame.h:580
ZScaleContext::alpha_params_tmp
zimg_graph_builder_params alpha_params_tmp
Definition: vf_zscale.c:133
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:111
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:441
AVFrame::colorspace
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:589
ZScaleContext::chromal
int chromal
Definition: vf_zscale.c:97
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
VAR_VSUB
@ VAR_VSUB
Definition: vf_zscale.c:75
pixdesc.h
TFLAGS
#define TFLAGS
Definition: vf_zscale.c:986
var_names
static const char *const var_names[]
Definition: vf_zscale.c:51
AVFrame::width
int width
Definition: frame.h:397
config_props
static int config_props(AVFilterLink *outlink)
Definition: vf_zscale.c:259
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:448
w
uint8_t w
Definition: llviddspenc.c:38
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:599
ZScaleContext::colorspace
int colorspace
Definition: vf_zscale.c:93
AVComponentDescriptor::depth
int depth
Number of bits in the component.
Definition: pixdesc.h:57
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:443
ZScaleContext::alpha_src_format
zimg_image_format alpha_src_format
Definition: vf_zscale.c:129
AVOption
AVOption.
Definition: opt.h:251
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:499
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:167
data
const char data[16]
Definition: mxf.c:143
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:406
AVCOL_PRI_JEDEC_P22
@ AVCOL_PRI_JEDEC_P22
Definition: pixfmt.h:488
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:576
ThreadData::desc
const AVPixFmtDescriptor * desc
Definition: vf_tonemap.c:177
AVCOL_SPC_RGB
@ AVCOL_SPC_RGB
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB), YZX and ST 428-1
Definition: pixfmt.h:526
float.h
AVCOL_TRC_BT2020_12
@ AVCOL_TRC_BT2020_12
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:512
pixel_fmts
static enum AVPixelFormat pixel_fmts[]
Definition: vf_amplify.c:53
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
mathematics.h
filter
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
Definition: filter_design.txt:228
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
zscale_options
static const AVOption zscale_options[]
Definition: vf_zscale.c:988
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:471
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:175
av_float2int
static av_always_inline uint32_t av_float2int(float f)
Reinterpret a float as a 32-bit integer.
Definition: intfloat.h:50
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:473
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:154
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:444
ZScaleContext::h
int h
Definition: vf_zscale.c:90
AVCOL_SPC_BT2020_CL
@ AVCOL_SPC_BT2020_CL
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:537
ZScaleContext::out_chromal
enum AVChromaLocation in_chromal out_chromal
Definition: vf_zscale.c:140
ZScaleContext::primaries
int primaries
Definition: vf_zscale.c:95
ZScaleContext::nb_threads
int nb_threads
Definition: vf_zscale.c:121
ZScaleContext::in_h_chr_pos
int in_h_chr_pos
Definition: vf_zscale.c:114
formats.h
ZScaleContext::param_b
double param_b
Definition: vf_zscale.c:107
VAR_OUT_W
@ VAR_OUT_W
Definition: vf_zscale.c:69
AVFrame::chroma_location
enum AVChromaLocation chroma_location
Definition: frame.h:591
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2702
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:531
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:440
convert_primaries
static int convert_primaries(enum AVColorPrimaries color_primaries)
Definition: vf_zscale.c:477
ZScaleContext::out_slice_start
int out_slice_start[MAX_THREADS]
Definition: vf_zscale.c:125
ZScaleContext::dst_format
zimg_image_format dst_format
Definition: vf_zscale.c:128
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:424
AVCOL_TRC_IEC61966_2_1
@ AVCOL_TRC_IEC61966_2_1
IEC 61966-2-1 (sRGB or sYCC)
Definition: pixfmt.h:510
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
ZScaleContext::src_format
zimg_image_format src_format
Definition: vf_zscale.c:128
fail
#define fail()
Definition: checkasm.h:131
ZScaleContext::out_primaries
enum AVColorPrimaries in_primaries out_primaries
Definition: vf_zscale.c:138
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:422
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:450
ZScaleContext::range
int range
Definition: vf_zscale.c:96
VAR_OW
@ VAR_OW
Definition: vf_zscale.c:69
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:404
AVCOL_TRC_GAMMA28
@ AVCOL_TRC_GAMMA28
also ITU-R BT470BG
Definition: pixfmt.h:502
convert_matrix
static int convert_matrix(enum AVColorSpace colorspace)
Definition: vf_zscale.c:407
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_zscale.c:202
ZScaleContext::alpha_params
zimg_graph_builder_params alpha_params
Definition: vf_zscale.c:132
av_opt_set
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:487
AVCOL_TRC_LOG_SQRT
@ AVCOL_TRC_LOG_SQRT
"Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"
Definition: pixfmt.h:507
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:501
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_zscale.c:960
VAR_SAR
@ VAR_SAR
Definition: vf_zscale.c:72
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:99
compare_zimg_graph_builder_params
static int compare_zimg_graph_builder_params(zimg_graph_builder_params *parm0, zimg_graph_builder_params *parm1)
Definition: vf_zscale.c:553
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:409
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:168
ZScaleContext::tmp
void * tmp[MAX_THREADS]
Definition: vf_zscale.c:120
AV_LOG_TRACE
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:206
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:418
ZScaleContext::graph
zimg_filter_graph * graph[MAX_THREADS]
Definition: vf_zscale.c:134
ZScaleContext::alpha_dst_format_tmp
zimg_image_format alpha_dst_format_tmp
Definition: vf_zscale.c:131
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
ZScaleContext::param_a
double param_a
Definition: vf_zscale.c:106
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:256
AVCHROMA_LOC_TOP
@ AVCHROMA_LOC_TOP
Definition: pixfmt.h:623
ZScaleContext
Definition: vf_zscale.c:81
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
graphs_build
static int graphs_build(AVFrame *in, AVFrame *out, const AVPixFmtDescriptor *desc, const AVPixFmtDescriptor *out_desc, AVFilterContext *ctx, int job_nr, int n_jobs)
Definition: vf_zscale.c:593
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:419
ZScaleContext::force_original_aspect_ratio
int force_original_aspect_ratio
Definition: vf_zscale.c:118
format
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample format(the sample packing is implied by the sample format) and sample rate. The lists are not just lists
AVCOL_SPC_SMPTE170M
@ AVCOL_SPC_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
Definition: pixfmt.h:532
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:227
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:596
ZScaleContext::src_format_tmp
zimg_image_format src_format_tmp
Definition: vf_zscale.c:130
var_name
var_name
Definition: noise_bsf.c:46
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:403
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:417
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:483
ZScaleContext::first_time
int first_time
Definition: vf_zscale.c:117
AVPixFmtDescriptor::log2_chroma_w
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:80
VAR_A
@ VAR_A
Definition: vf_zscale.c:71
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
ZScaleContext::dst_format_tmp
zimg_image_format dst_format_tmp
Definition: vf_zscale.c:130
AVCOL_PRI_SMPTE240M
@ AVCOL_PRI_SMPTE240M
identical to above, also called "SMPTE C" even though it uses D65
Definition: pixfmt.h:480
color_range
color_range
Definition: vf_selectivecolor.c:44
ZScaleContext::in_slice_start
double in_slice_start[MAX_THREADS]
Definition: vf_zscale.c:123
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:474
NAN
#define NAN
Definition: mathematics.h:64
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
link
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a link
Definition: filter_design.txt:23
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
AVCOL_SPC_CHROMA_DERIVED_CL
@ AVCOL_SPC_CHROMA_DERIVED_CL
Chromaticity-derived constant luminance system.
Definition: pixfmt.h:540
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:478
AVCOL_PRI_SMPTE170M
@ AVCOL_PRI_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:479
if
if(ret)
Definition: filter_design.txt:179
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:425
ZScaleContext::params
zimg_graph_builder_params params
Definition: vf_zscale.c:132
print_zimg_error
static int print_zimg_error(AVFilterContext *ctx)
Definition: vf_zscale.c:377
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:596
ZScaleContext::out_range
enum AVColorRange in_range out_range
Definition: vf_zscale.c:139
realign_frame
static int realign_frame(const AVPixFmtDescriptor *desc, AVFrame **frame, int needs_copy)
Definition: vf_zscale.c:661
FLAGS
#define FLAGS
Definition: vf_zscale.c:985
AVCHROMA_LOC_LEFT
@ AVCHROMA_LOC_LEFT
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:620
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:622
AVCOL_TRC_IEC61966_2_4
@ AVCOL_TRC_IEC61966_2_4
IEC 61966-2-4.
Definition: pixfmt.h:508
isnan
#define isnan(x)
Definition: libm.h:340
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
compare_zimg_image_formats
static int compare_zimg_image_formats(zimg_image_format *img_fmt0, zimg_image_format *img_fmt1)
Definition: vf_zscale.c:532
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:416
AVCOL_PRI_BT709
@ AVCOL_PRI_BT709
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP 177 Annex B
Definition: pixfmt.h:473
parseutils.h
slice_params
static void slice_params(ZScaleContext *s, int out_h, int in_h)
Definition: vf_zscale.c:234
convert_range
static int convert_range(enum AVColorRange color_range)
Definition: vf_zscale.c:508
ZScaleContext::out_v_chr_pos
int out_v_chr_pos
Definition: vf_zscale.c:113
double
double
Definition: af_crystalizer.c:132
AVCOL_TRC_BT2020_10
@ AVCOL_TRC_BT2020_10
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:511
AVCOL_SPC_YCGCO
@ AVCOL_SPC_YCGCO
used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16
Definition: pixfmt.h:534
ZScaleContext::dither
int dither
Definition: vf_zscale.c:91
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:407
update_output_color_information
static void update_output_color_information(ZScaleContext *s, AVFrame *frame)
Definition: vf_zscale.c:700
ff_vf_zscale
const AVFilter ff_vf_zscale
Definition: vf_zscale.c:1130
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:421
AVPixFmtDescriptor::flags
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:94
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:565
AVCOL_PRI_BT2020
@ AVCOL_PRI_BT2020
ITU-R BT2020.
Definition: pixfmt.h:482
planes
static const struct @328 planes[]
color_primaries
static const AVColorPrimariesDesc color_primaries[AVCOL_PRI_NB]
Definition: csp.c:71
AVCOL_TRC_SMPTE2084
@ AVCOL_TRC_SMPTE2084
SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems.
Definition: pixfmt.h:513
AVCOL_PRI_SMPTE431
@ AVCOL_PRI_SMPTE431
SMPTE ST 431-2 (2011) / DCI P3.
Definition: pixfmt.h:485
ZScaleContext::in_v_chr_pos
int in_v_chr_pos
Definition: vf_zscale.c:115
eval.h
f
f
Definition: af_crystalizer.c:122
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
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:504
AVCOL_PRI_FILM
@ AVCOL_PRI_FILM
colour filters using Illuminant C
Definition: pixfmt.h:481
AV_WN32
#define AV_WN32(p, v)
Definition: intreadwrite.h:376
MAX_THREADS
#define MAX_THREADS
Definition: vf_zscale.c:49
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:136
av_frame_copy
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
Definition: frame.c:764
AVCOL_TRC_LOG
@ AVCOL_TRC_LOG
"Logarithmic transfer characteristic (100:1 range)"
Definition: pixfmt.h:506
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:435
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:411
size
int size
Definition: twinvq_data.h:10344
ZScaleContext::primaries_in
int primaries_in
Definition: vf_zscale.c:100
ZScaleContext::approximate_gamma
int approximate_gamma
Definition: vf_zscale.c:105
ZScaleContext::alpha_dst_format
zimg_image_format alpha_dst_format
Definition: vf_zscale.c:129
VAR_OHSUB
@ VAR_OHSUB
Definition: vf_zscale.c:76
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:413
filter_slice
static int filter_slice(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
Definition: vf_zscale.c:718
AVCHROMA_LOC_UNSPECIFIED
@ AVCHROMA_LOC_UNSPECIFIED
Definition: pixfmt.h:619
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:412
VAR_IN_W
@ VAR_IN_W
Definition: vf_zscale.c:67
avfilter_vf_zscale_outputs
static const AVFilterPad avfilter_vf_zscale_outputs[]
Definition: vf_zscale.c:1122
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:445
AVERROR_EXTERNAL
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:59
av_parse_video_size
int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
Parse str and put in width_ptr and height_ptr the detected values.
Definition: parseutils.c:150
VARS_NB
@ VARS_NB
Definition: vf_zscale.c:78
AVCOL_SPC_CHROMA_DERIVED_NCL
@ AVCOL_SPC_CHROMA_DERIVED_NCL
Chromaticity-derived non-constant luminance system.
Definition: pixfmt.h:539
VAR_HSUB
@ VAR_HSUB
Definition: vf_zscale.c:74
AVCOL_TRC_BT709
@ AVCOL_TRC_BT709
also ITU-R BT1361
Definition: pixfmt.h:498
internal.h
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:618
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:533
ZScaleContext::in_slice_end
double in_slice_end[MAX_THREADS]
Definition: vf_zscale.c:124
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
AVCOL_SPC_BT2020_NCL
@ AVCOL_SPC_BT2020_NCL
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:536
filter_frame
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_zscale.c:782
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:423
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:525
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:783
ZScaleContext::out_colorspace
enum AVColorSpace in_colorspace out_colorspace
Definition: vf_zscale.c:136
ThreadData
Used for passing data between threads.
Definition: dsddec.c:68
VAR_IW
@ VAR_IW
Definition: vf_zscale.c:67
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
ZScaleContext::w
int w
New dimensions.
Definition: vf_zscale.c:90
ZScaleContext::trc
int trc
Definition: vf_zscale.c:94
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
VAR_OH
@ VAR_OH
Definition: vf_zscale.c:70
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:528
av_rescale
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition: mathematics.c:129
ZScaleContext::chromal_in
int chromal_in
Definition: vf_zscale.c:102
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:582
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:272
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:405
AVFilter
Filter definition.
Definition: avfilter.h:171
VAR_IH
@ VAR_IH
Definition: vf_zscale.c:68
AVCOL_PRI_BT470M
@ AVCOL_PRI_BT470M
also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:476
ret
ret
Definition: filter_design.txt:187
ZScaleContext::trc_in
int trc_in
Definition: vf_zscale.c:99
ZScaleContext::size_str
char * size_str
Definition: vf_zscale.c:103
FFSWAP
#define FFSWAP(type, a, b)
Definition: macros.h:52
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:442
convert_chroma_location
static int convert_chroma_location(enum AVChromaLocation chroma_location)
Definition: vf_zscale.c:387
AVFrame::sample_aspect_ratio
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:427
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:410
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:415
AVFrame::height
int height
Definition: frame.h:397
AVCOL_TRC_ARIB_STD_B67
@ AVCOL_TRC_ARIB_STD_B67
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:517
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_zscale.c:148
AVCHROMA_LOC_CENTER
@ AVCHROMA_LOC_CENTER
MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0.
Definition: pixfmt.h:621
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:530
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:436
VAR_IN_H
@ VAR_IN_H
Definition: vf_zscale.c:68
VAR_OVSUB
@ VAR_OVSUB
Definition: vf_zscale.c:77
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:105
AVCOL_TRC_SMPTE170M
@ AVCOL_TRC_SMPTE170M
also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
Definition: pixfmt.h:503
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:984
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
ZScaleContext::alpha_graph
zimg_filter_graph * alpha_graph[MAX_THREADS]
Definition: vf_zscale.c:134
AVFilterContext
An instance of a filter.
Definition: avfilter.h:408
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:127
desc
const char * desc
Definition: libsvtav1.c:83
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
MIN_TILESIZE
#define MIN_TILESIZE
Definition: vf_zscale.c:48
convert_trc
static int convert_trc(enum AVColorTransferCharacteristic color_trc)
Definition: vf_zscale.c:440
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:486
ZScaleContext::alpha_src_format_tmp
zimg_image_format alpha_src_format_tmp
Definition: vf_zscale.c:131
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
VAR_DAR
@ VAR_DAR
Definition: vf_zscale.c:73
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(zscale)
ZScaleContext::nominal_peak_luminance
double nominal_peak_luminance
Definition: vf_zscale.c:104
ZScaleContext::out_trc
enum AVColorTransferCharacteristic in_trc out_trc
Definition: vf_zscale.c:137
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:416
avstring.h
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
ff_filter_execute
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: internal.h:142
AVCOL_SPC_BT709
@ AVCOL_SPC_BT709
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / derived in SMPTE RP 177 Annex B
Definition: pixfmt.h:527
AVColorRange
AVColorRange
Visual content value range.
Definition: pixfmt.h:564
int
int
Definition: ffmpeg_filter.c:153
AVCOL_SPC_ICTCP
@ AVCOL_SPC_ICTCP
ITU-R BT.2100-0, ICtCp.
Definition: pixfmt.h:541
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
snprintf
#define snprintf
Definition: snprintf.h:34
VAR_OUT_H
@ VAR_OUT_H
Definition: vf_zscale.c:70
ZScaleContext::out_h_chr_pos
int out_h_chr_pos
Definition: vf_zscale.c:112
AVCHROMA_LOC_BOTTOMLEFT
@ AVCHROMA_LOC_BOTTOMLEFT
Definition: pixfmt.h:624
AVPixFmtDescriptor::log2_chroma_h
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:89
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:414
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:2582
ZScaleContext::w_expr
char * w_expr
width expression string
Definition: vf_zscale.c:109
avfilter_vf_zscale_inputs
static const AVFilterPad avfilter_vf_zscale_inputs[]
Definition: vf_zscale.c:1114
dither
static const uint8_t dither[8][8]
Definition: vf_fspp.c:58