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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 "filters.h"
35 #include "formats.h"
36 #include "video.h"
37 #include "libavutil/eval.h"
38 #include "libavutil/internal.h"
39 #include "libavutil/intfloat.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/mem.h"
43 #include "libavutil/opt.h"
44 #include "libavutil/parseutils.h"
45 #include "libavutil/pixdesc.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 
114 
115  void *tmp[MAX_THREADS]; //separate for each thread;
122 
123  zimg_image_format src_format, dst_format;
124  zimg_image_format alpha_src_format, alpha_dst_format;
125  zimg_image_format src_format_tmp, dst_format_tmp;
127  zimg_graph_builder_params alpha_params, params;
128  zimg_graph_builder_params alpha_params_tmp, params_tmp;
129  zimg_filter_graph *alpha_graph[MAX_THREADS], *graph[MAX_THREADS];
130 } ZScaleContext;
131 
132 typedef struct ThreadData {
134  AVFrame *in, *out;
135 } ThreadData;
136 
138 {
139  ZScaleContext *s = ctx->priv;
140  int ret;
141  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
142  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
143  zimg_image_format_default(&s->src_format_tmp, ZIMG_API_VERSION);
144  zimg_image_format_default(&s->dst_format_tmp, ZIMG_API_VERSION);
145 
146  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
147  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
148  zimg_image_format_default(&s->alpha_src_format_tmp, ZIMG_API_VERSION);
149  zimg_image_format_default(&s->alpha_dst_format_tmp, ZIMG_API_VERSION);
150 
151  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
152  zimg_graph_builder_params_default(&s->params_tmp, ZIMG_API_VERSION);
153  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
154  zimg_graph_builder_params_default(&s->alpha_params_tmp, ZIMG_API_VERSION);
155 
156  if (s->size_str && (s->w_expr || s->h_expr)) {
158  "Size and width/height expressions cannot be set at the same time.\n");
159  return AVERROR(EINVAL);
160  }
161 
162  if (s->w_expr && !s->h_expr)
163  FFSWAP(char *, s->w_expr, s->size_str);
164 
165  if (s->size_str) {
166  char buf[32];
167  if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) {
169  "Invalid size '%s'\n", s->size_str);
170  return ret;
171  }
172  snprintf(buf, sizeof(buf)-1, "%d", s->w);
173  av_opt_set(s, "w", buf, 0);
174  snprintf(buf, sizeof(buf)-1, "%d", s->h);
175  av_opt_set(s, "h", buf, 0);
176  }
177  if (!s->w_expr)
178  av_opt_set(s, "w", "iw", 0);
179  if (!s->h_expr)
180  av_opt_set(s, "h", "ih", 0);
181 
182  return 0;
183 }
184 
185 static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range);
186 
188  AVFilterFormatsConfig **cfg_in,
189  AVFilterFormatsConfig **cfg_out)
190 {
191  const ZScaleContext *s = ctx->priv;
193  static const enum AVPixelFormat pixel_fmts[] = {
217  };
218  int ret;
219 
221  if (ret < 0)
222  return ret;
224  if (ret < 0)
225  return ret;
226 
227  if ((ret = ff_formats_ref(ff_all_color_spaces(), &cfg_in[0]->color_spaces)) < 0 ||
228  (ret = ff_formats_ref(ff_all_color_ranges(), &cfg_in[0]->color_ranges)) < 0)
229  return ret;
230 
231  formats = s->colorspace != ZIMG_MATRIX_UNSPECIFIED && s->colorspace > 0
232  ? ff_make_formats_list_singleton(s->colorspace)
234  if ((ret = ff_formats_ref(formats, &cfg_out[0]->color_spaces)) < 0)
235  return ret;
236 
237  formats = s->range != -1
240  if ((ret = ff_formats_ref(formats, &cfg_out[0]->color_ranges)) < 0)
241  return ret;
242 
243  return 0;
244 }
245 
246 static void slice_params(ZScaleContext *s, int out_h, int in_h)
247 {
248  s->out_slice_start[0] = 0;
249  for (int i = 1; i < s->nb_threads; i++) {
250  int slice_end = out_h * i / s->nb_threads;
251  s->out_slice_end[i - 1] = s->out_slice_start[i] = FFALIGN(slice_end, 2);
252  }
253  s->out_slice_end[s->nb_threads - 1] = out_h;
254 
255  for (int i = 0; i < s->nb_threads; i++) {
256  s->in_slice_start[i] = s->out_slice_start[i] * in_h / (double)out_h;
257  s->in_slice_end[i] = s->out_slice_end[i] * in_h / (double)out_h;
258  }
259 }
260 
261 static int config_props(AVFilterLink *outlink)
262 {
263  AVFilterContext *ctx = outlink->src;
264  AVFilterLink *inlink = outlink->src->inputs[0];
265  ZScaleContext *s = ctx->priv;
267  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format);
268  int64_t w, h;
269  double var_values[VARS_NB], res;
270  char *expr;
271  int ret;
272  int factor_w, factor_h;
273 
274  var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
275  var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
276  var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
277  var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
278  var_values[VAR_A] = (double) inlink->w / inlink->h;
279  var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
280  (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
281  var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
282  var_values[VAR_HSUB] = 1 << desc->log2_chroma_w;
283  var_values[VAR_VSUB] = 1 << desc->log2_chroma_h;
284  var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w;
285  var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h;
286 
287  /* evaluate width and height */
288  av_expr_parse_and_eval(&res, (expr = s->w_expr),
289  var_names, var_values,
290  NULL, NULL, NULL, NULL, NULL, 0, ctx);
291  s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;
292  if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
293  var_names, var_values,
294  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
295  goto fail;
296  s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;
297  /* evaluate again the width, as it may depend on the output height */
298  if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
299  var_names, var_values,
300  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
301  goto fail;
302  s->w = res;
303 
304  w = s->w;
305  h = s->h;
306 
307  /* Check if it is requested that the result has to be divisible by a some
308  * factor (w or h = -n with n being the factor). */
309  factor_w = 1;
310  factor_h = 1;
311  if (w < -1) {
312  factor_w = -w;
313  }
314  if (h < -1) {
315  factor_h = -h;
316  }
317 
318  if (w < 0 && h < 0)
319  s->w = s->h = 0;
320 
321  if (!(w = s->w))
322  w = inlink->w;
323  if (!(h = s->h))
324  h = inlink->h;
325 
326  /* Make sure that the result is divisible by the factor we determined
327  * earlier. If no factor was set, it is nothing will happen as the default
328  * factor is 1 */
329  if (w < 0)
330  w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w;
331  if (h < 0)
332  h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h;
333 
334  /* Note that force_original_aspect_ratio may overwrite the previous set
335  * dimensions so that it is not divisible by the set factors anymore. */
336  if (s->force_original_aspect_ratio) {
337  int tmp_w = av_rescale(h, inlink->w, inlink->h);
338  int tmp_h = av_rescale(w, inlink->h, inlink->w);
339 
340  if (s->force_original_aspect_ratio == 1) {
341  w = FFMIN(tmp_w, w);
342  h = FFMIN(tmp_h, h);
343  } else {
344  w = FFMAX(tmp_w, w);
345  h = FFMAX(tmp_h, h);
346  }
347  }
348 
349  if (w > INT_MAX || h > INT_MAX ||
350  (h * inlink->w) > INT_MAX ||
351  (w * inlink->h) > INT_MAX)
352  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
353 
354  outlink->w = w;
355  outlink->h = h;
356 
357  s->first_time = 1;
358 
359  if (inlink->sample_aspect_ratio.num){
360  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
361  } else
362  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
363 
364  av_log(ctx, AV_LOG_DEBUG, "w:%d h:%d fmt:%s csp:%s range:%s sar:%d/%d -> w:%d h:%d fmt:%s csp:%s range:%s sar:%d/%d\n",
365  inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
366  av_color_space_name(inlink->colorspace), av_color_range_name(inlink->color_range),
367  inlink->sample_aspect_ratio.num, inlink->sample_aspect_ratio.den,
368  outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format),
370  outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den);
371  return 0;
372 
373 fail:
375  "Error when evaluating the expression '%s'.\n"
376  "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n",
377  expr, s->w_expr, s->h_expr);
378  return ret;
379 }
380 
382 {
383  char err_msg[1024];
384  int err_code = zimg_get_last_error(err_msg, sizeof(err_msg));
385 
386  av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg);
387 
388  return AVERROR_EXTERNAL;
389 }
390 
391 static int convert_chroma_location(enum AVChromaLocation chroma_location)
392 {
393  switch (chroma_location) {
395  case AVCHROMA_LOC_LEFT:
396  return ZIMG_CHROMA_LEFT;
397  case AVCHROMA_LOC_CENTER:
398  return ZIMG_CHROMA_CENTER;
400  return ZIMG_CHROMA_TOP_LEFT;
401  case AVCHROMA_LOC_TOP:
402  return ZIMG_CHROMA_TOP;
404  return ZIMG_CHROMA_BOTTOM_LEFT;
405  case AVCHROMA_LOC_BOTTOM:
406  return ZIMG_CHROMA_BOTTOM;
407  }
408  return ZIMG_CHROMA_LEFT;
409 }
410 
411 static int convert_matrix(enum AVColorSpace colorspace)
412 {
413  switch (colorspace) {
414  case AVCOL_SPC_RGB:
415  return ZIMG_MATRIX_RGB;
416  case AVCOL_SPC_BT709:
417  return ZIMG_MATRIX_709;
419  return ZIMG_MATRIX_UNSPECIFIED;
420  case AVCOL_SPC_FCC:
421  return ZIMG_MATRIX_FCC;
422  case AVCOL_SPC_BT470BG:
423  return ZIMG_MATRIX_470BG;
424  case AVCOL_SPC_SMPTE170M:
425  return ZIMG_MATRIX_170M;
426  case AVCOL_SPC_SMPTE240M:
427  return ZIMG_MATRIX_240M;
428  case AVCOL_SPC_YCGCO:
429  return ZIMG_MATRIX_YCGCO;
431  return ZIMG_MATRIX_2020_NCL;
432  case AVCOL_SPC_BT2020_CL:
433  return ZIMG_MATRIX_2020_CL;
435  return ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL;
437  return ZIMG_MATRIX_CHROMATICITY_DERIVED_CL;
438  case AVCOL_SPC_ICTCP:
439  return ZIMG_MATRIX_ICTCP;
440  }
441  return ZIMG_MATRIX_UNSPECIFIED;
442 }
443 
444 static int convert_trc(enum AVColorTransferCharacteristic color_trc)
445 {
446  switch (color_trc) {
448  return ZIMG_TRANSFER_UNSPECIFIED;
449  case AVCOL_TRC_BT709:
450  return ZIMG_TRANSFER_709;
451  case AVCOL_TRC_GAMMA22:
452  return ZIMG_TRANSFER_470_M;
453  case AVCOL_TRC_GAMMA28:
454  return ZIMG_TRANSFER_470_BG;
455  case AVCOL_TRC_SMPTE170M:
456  return ZIMG_TRANSFER_601;
457  case AVCOL_TRC_SMPTE240M:
458  return ZIMG_TRANSFER_240M;
459  case AVCOL_TRC_LINEAR:
460  return ZIMG_TRANSFER_LINEAR;
461  case AVCOL_TRC_LOG:
462  return ZIMG_TRANSFER_LOG_100;
463  case AVCOL_TRC_LOG_SQRT:
464  return ZIMG_TRANSFER_LOG_316;
466  return ZIMG_TRANSFER_IEC_61966_2_4;
467  case AVCOL_TRC_BT2020_10:
468  return ZIMG_TRANSFER_2020_10;
469  case AVCOL_TRC_BT2020_12:
470  return ZIMG_TRANSFER_2020_12;
471  case AVCOL_TRC_SMPTE2084:
472  return ZIMG_TRANSFER_ST2084;
474  return ZIMG_TRANSFER_ARIB_B67;
476  return ZIMG_TRANSFER_IEC_61966_2_1;
477  }
478  return ZIMG_TRANSFER_UNSPECIFIED;
479 }
480 
482 {
483  switch (color_primaries) {
485  return ZIMG_PRIMARIES_UNSPECIFIED;
486  case AVCOL_PRI_BT709:
487  return ZIMG_PRIMARIES_709;
488  case AVCOL_PRI_BT470M:
489  return ZIMG_PRIMARIES_470_M;
490  case AVCOL_PRI_BT470BG:
491  return ZIMG_PRIMARIES_470_BG;
492  case AVCOL_PRI_SMPTE170M:
493  return ZIMG_PRIMARIES_170M;
494  case AVCOL_PRI_SMPTE240M:
495  return ZIMG_PRIMARIES_240M;
496  case AVCOL_PRI_FILM:
497  return ZIMG_PRIMARIES_FILM;
498  case AVCOL_PRI_BT2020:
499  return ZIMG_PRIMARIES_2020;
500  case AVCOL_PRI_SMPTE428:
501  return ZIMG_PRIMARIES_ST428;
502  case AVCOL_PRI_SMPTE431:
503  return ZIMG_PRIMARIES_ST431_2;
504  case AVCOL_PRI_SMPTE432:
505  return ZIMG_PRIMARIES_ST432_1;
506  case AVCOL_PRI_JEDEC_P22:
507  return ZIMG_PRIMARIES_EBU3213_E;
508  }
509  return ZIMG_PRIMARIES_UNSPECIFIED;
510 }
511 
513 {
514  switch (color_range) {
516  case AVCOL_RANGE_MPEG:
517  return ZIMG_RANGE_LIMITED;
518  case AVCOL_RANGE_JPEG:
519  return ZIMG_RANGE_FULL;
520  }
521  return ZIMG_RANGE_LIMITED;
522 }
523 
524 static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range)
525 {
526  switch (color_range) {
527  case ZIMG_RANGE_LIMITED:
528  return AVCOL_RANGE_MPEG;
529  case ZIMG_RANGE_FULL:
530  return AVCOL_RANGE_JPEG;
531  }
533 }
534 
535 /* returns 0 if image formats are the same and 1 otherwise */
536 static int compare_zimg_image_formats(zimg_image_format *img_fmt0, zimg_image_format *img_fmt1)
537 {
538  return ((img_fmt0->chroma_location != img_fmt1->chroma_location) ||
539 #if ZIMG_API_VERSION >= 0x204
540  (img_fmt0->alpha != img_fmt1->alpha) ||
541 #endif
542  (img_fmt0->color_family != img_fmt1->color_family) ||
543  (img_fmt0->color_primaries != img_fmt1->color_primaries) ||
544  (img_fmt0->depth != img_fmt1->depth) ||
545  (img_fmt0->field_parity != img_fmt1->field_parity) ||
546  (img_fmt0->height != img_fmt1->height) ||
547  (img_fmt0->matrix_coefficients != img_fmt1->matrix_coefficients) ||
548  (img_fmt0->pixel_range != img_fmt1->pixel_range) ||
549  (img_fmt0->pixel_type != img_fmt1->pixel_type) ||
550  (img_fmt0->subsample_h != img_fmt1->subsample_h) ||
551  (img_fmt0->subsample_w != img_fmt1->subsample_w) ||
552  (img_fmt0->transfer_characteristics != img_fmt1->transfer_characteristics) ||
553  (img_fmt0->width != img_fmt1->width));
554 }
555 
556 /* returns 0 if graph builder parameters are the same and 1 otherwise */
557 static int compare_zimg_graph_builder_params(zimg_graph_builder_params *parm0, zimg_graph_builder_params *parm1)
558 {
559  /* the parameters that could be changed inside a single ffmpeg zscale invocation are checked only
560  and NaN values that are default for some params are treated properly*/
561  int ret = (parm0->allow_approximate_gamma != parm1->allow_approximate_gamma) ||
562  (parm0->dither_type != parm1->dither_type) ||
563  (parm0->resample_filter != parm1->resample_filter) ||
564  (parm0->resample_filter_uv != parm1->resample_filter_uv);
565 
566  if ((isnan(parm0->nominal_peak_luminance) == 0) || (isnan(parm1->nominal_peak_luminance) == 0))
567  ret = ret || (parm0->nominal_peak_luminance != parm1->nominal_peak_luminance);
568  if ((isnan(parm0->filter_param_a) == 0) || (isnan(parm1->filter_param_a) == 0))
569  ret = ret || (parm0->filter_param_a != parm1->filter_param_a);
570  if ((isnan(parm0->filter_param_a_uv) == 0) || (isnan(parm1->filter_param_a_uv) == 0))
571  ret = ret || (parm0->filter_param_a_uv != parm1->filter_param_a_uv);
572  if ((isnan(parm0->filter_param_b) == 0) || (isnan(parm1->filter_param_b) == 0))
573  ret = ret || (parm0->filter_param_b != parm1->filter_param_b);
574  if ((isnan(parm0->filter_param_b_uv) == 0) || (isnan(parm1->filter_param_b_uv) == 0))
575  ret = ret || (parm0->filter_param_b_uv != parm1->filter_param_b_uv);
576 
577  return ret;
578 }
579 
580 static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc,
581  int colorspace, int primaries, int transfer, int range, int location)
582 {
583  format->width = frame->width;
584  format->height = frame->height;
585  format->subsample_w = desc->log2_chroma_w;
586  format->subsample_h = desc->log2_chroma_h;
587  format->depth = desc->comp[0].depth;
588  format->pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? (desc->comp[0].depth > 16 ? ZIMG_PIXEL_FLOAT : ZIMG_PIXEL_HALF)
589  : (desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE);
590  format->color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB
591  : (desc->nb_components > 1 ? ZIMG_COLOR_YUV : ZIMG_COLOR_GREY);
592  format->matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : colorspace == -1 ? convert_matrix(frame->colorspace) : colorspace;
593  format->color_primaries = primaries == -1 ? convert_primaries(frame->color_primaries) : primaries;
594  format->transfer_characteristics = transfer == -1 ? convert_trc(frame->color_trc) : transfer;
595  format->pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : range == -1 ? convert_range(frame->color_range) : range;
596  format->chroma_location = location == -1 ? convert_chroma_location(frame->chroma_location) : location;
597 }
598 
599 static int graphs_build(AVFrame *in, AVFrame *out, const AVPixFmtDescriptor *desc, const AVPixFmtDescriptor *out_desc,
600  AVFilterContext *ctx, int job_nr, int n_jobs)
601 {
602  ZScaleContext *s = ctx->priv;
603  int ret;
604  size_t size;
605  zimg_image_format src_format;
606  zimg_image_format dst_format;
607  zimg_image_format alpha_src_format;
608  zimg_image_format alpha_dst_format;
609  const double in_slice_start = s->in_slice_start[job_nr];
610  const double in_slice_end = s->in_slice_end[job_nr];
611  const int out_slice_start = s->out_slice_start[job_nr];
612  const int out_slice_end = s->out_slice_end[job_nr];
613 
614  src_format = s->src_format;
615  dst_format = s->dst_format;
616  /* The input slice is specified through the active_region field,
617  unlike the output slice.
618  according to zimg requirements input and output slices should have even dimensions */
619  src_format.active_region.width = in->width;
620  src_format.active_region.height = in_slice_end - in_slice_start;
621  src_format.active_region.left = 0;
622  src_format.active_region.top = in_slice_start;
623  //dst now is the single tile only!!
624  dst_format.width = out->width;
625  dst_format.height = out_slice_end - out_slice_start;
626 
627  if (s->graph[job_nr]) {
628  zimg_filter_graph_free(s->graph[job_nr]);
629  }
630  s->graph[job_nr] = zimg_filter_graph_build(&src_format, &dst_format, &s->params);
631  if (!s->graph[job_nr])
632  return print_zimg_error(ctx);
633 
634  ret = zimg_filter_graph_get_tmp_size(s->graph[job_nr], &size);
635  if (ret)
636  return print_zimg_error(ctx);
637 
638  if (size > (SIZE_MAX - ZIMG_ALIGNMENT))
639  return AVERROR(ENOMEM);
640 
641  if (s->tmp[job_nr])
642  av_freep(&s->tmp[job_nr]);
643  s->tmp[job_nr] = av_mallocz(size + ZIMG_ALIGNMENT);
644  if (!s->tmp[job_nr])
645  return AVERROR(ENOMEM);
646 
647  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && out_desc->flags & AV_PIX_FMT_FLAG_ALPHA) {
648  alpha_src_format = s->alpha_src_format;
649  alpha_dst_format = s->alpha_dst_format;
650  /* The input slice is specified through the active_region field, unlike the output slice.
651  according to zimg requirements input and output slices should have even dimentions */
652  alpha_src_format.active_region.width = in->width;
653  alpha_src_format.active_region.height = in_slice_end - in_slice_start;
654  alpha_src_format.active_region.left = 0;
655  alpha_src_format.active_region.top = in_slice_start;
656  //dst now is the single tile only!!
657  alpha_dst_format.width = out->width;
658  alpha_dst_format.height = out_slice_end - out_slice_start;
659 
660  if (s->alpha_graph[job_nr]) {
661  zimg_filter_graph_free(s->alpha_graph[job_nr]);
662  }
663  s->alpha_graph[job_nr] = zimg_filter_graph_build(&alpha_src_format, &alpha_dst_format, &s->alpha_params);
664  if (!s->alpha_graph[job_nr])
665  return print_zimg_error(ctx);
666  }
667  return 0;
668 }
669 
671 {
672  AVFrame *aligned = NULL;
673  int ret = 0, plane, planes;
674 
675  /* Realign any unaligned input frame. */
676  planes = av_pix_fmt_count_planes((*frame)->format);
677  for (plane = 0; plane < planes; plane++) {
678  int p = desc->comp[plane].plane;
679  if ((uintptr_t)(*frame)->data[p] % ZIMG_ALIGNMENT || (*frame)->linesize[p] % ZIMG_ALIGNMENT) {
680  aligned = ff_default_get_video_buffer2(link, (*frame)->width, (*frame)->height, ZIMG_ALIGNMENT);
681  if (!aligned)
682  return AVERROR(ENOMEM);
683 
684  if ((ret = av_frame_copy(aligned, *frame)) < 0)
685  goto fail;
686 
687  if ((ret = av_frame_copy_props(aligned, *frame)) < 0)
688  goto fail;
689 
691  *frame = aligned;
692  return 0;
693  }
694  }
695 
696 fail:
698  return ret;
699 }
700 
702 {
703  if (s->primaries != -1)
704  frame->color_primaries = (int)s->dst_format.color_primaries;
705 
706  if (s->trc != -1)
707  frame->color_trc = (int)s->dst_format.transfer_characteristics;
708 
709  if (s->chromal != -1)
710  frame->chroma_location = (int)s->dst_format.chroma_location + 1;
711 }
712 
713 static int filter_slice(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
714 {
715  ThreadData *td = data;
716  int ret = 0;
717  int p;
718  int need_gb;
719  ZScaleContext *s = ctx->priv;
720  zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
721  zimg_image_buffer dst_buf = { ZIMG_API_VERSION };
722  const int out_slice_start = s->out_slice_start[job_nr];
723 
724  /* create zimg filter graphs for each thread
725  only if not created earlier or there is some change in frame parameters */
726  need_gb = compare_zimg_image_formats(&s->src_format, &s->src_format_tmp) ||
727  compare_zimg_image_formats(&s->dst_format, &s->dst_format_tmp) ||
728  compare_zimg_graph_builder_params(&s->params, &s->params_tmp);
730  need_gb = need_gb || compare_zimg_image_formats(&s->alpha_src_format, &s->alpha_src_format_tmp) ||
731  compare_zimg_image_formats(&s->alpha_dst_format, &s->alpha_dst_format_tmp) ||
732  compare_zimg_graph_builder_params(&s->alpha_params, &s->alpha_params_tmp);
733 
734  if (need_gb){
735  ret = graphs_build(td->in, td->out, td->desc, td->odesc, ctx, job_nr, n_jobs);
736  if (ret < 0)
737  return print_zimg_error(ctx);
738  }
739  for (int i = 0; i < 3; i++) {
740  const int vsamp = i >= 1 ? td->odesc->log2_chroma_h : 0;
741 
742  p = td->desc->comp[i].plane;
743 
744  if (i < td->desc->nb_components) {
745  src_buf.plane[i].data = td->in->data[p];
746  src_buf.plane[i].stride = td->in->linesize[p];
747  src_buf.plane[i].mask = -1;
748  }
749 
750  p = td->odesc->comp[i].plane;
751  if (i < td->odesc->nb_components) {
752  dst_buf.plane[i].data = td->out->data[p] + td->out->linesize[p] * (out_slice_start >> vsamp);
753  dst_buf.plane[i].stride = td->out->linesize[p];
754  dst_buf.plane[i].mask = -1;
755  }
756  }
757  if (!s->graph[job_nr])
758  return AVERROR(EINVAL);
759  ret = zimg_filter_graph_process(s->graph[job_nr], &src_buf, &dst_buf,
760  (uint8_t *)FFALIGN((uintptr_t)s->tmp[job_nr], ZIMG_ALIGNMENT),
761  0, 0, 0, 0);
762  if (ret)
763  return print_zimg_error(ctx);
764 
766  src_buf.plane[0].data = td->in->data[3];
767  src_buf.plane[0].stride = td->in->linesize[3];
768  src_buf.plane[0].mask = -1;
769 
770  dst_buf.plane[0].data = td->out->data[3] + td->out->linesize[3] * out_slice_start;
771  dst_buf.plane[0].stride = td->out->linesize[3];
772  dst_buf.plane[0].mask = -1;
773 
774  if (!s->alpha_graph[job_nr])
775  return AVERROR(EINVAL);
776  ret = zimg_filter_graph_process(s->alpha_graph[job_nr], &src_buf, &dst_buf,
777  (uint8_t *)FFALIGN((uintptr_t)s->tmp[job_nr], ZIMG_ALIGNMENT),
778  0, 0, 0, 0);
779  if (ret)
780  return print_zimg_error(ctx);
781  }
782  return 0;
783 }
784 
786 {
787  AVFilterContext *ctx = link->dst;
788  ZScaleContext *s = ctx->priv;
789  AVFilterLink *outlink = ctx->outputs[0];
791  const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format);
792  char buf[32];
793  int ret = 0, changed = 0;
794  AVFrame *out = NULL;
795  ThreadData td;
796 
797  //we need to use this filter if something is different for an input and output only
798  //otherwise - just copy the input frame to the output
799  if ((link->format != outlink->format) ||
800  (link->w != outlink->w) ||
801  (link->h != outlink->h) ||
802  (link->colorspace != outlink->colorspace) ||
803  (link->color_range != outlink->color_range) ||
804  s->first_time ||
805  (s->src_format.chroma_location != s->dst_format.chroma_location) ||
806  (s->src_format.color_family !=s->dst_format.color_family) ||
807  (s->src_format.color_primaries !=s->dst_format.color_primaries) ||
808  (s->src_format.depth !=s->dst_format.depth) ||
809  (s->src_format.matrix_coefficients !=s->dst_format.matrix_coefficients) ||
810  (s->src_format.field_parity !=s->dst_format.field_parity) ||
811  (s->src_format.pixel_range !=s->dst_format.pixel_range) ||
812  (s->src_format.pixel_type !=s->dst_format.pixel_type) ||
813  (s->src_format.transfer_characteristics !=s->dst_format.transfer_characteristics)
814  ){
815  out = ff_default_get_video_buffer2(outlink, outlink->w, outlink->h, ZIMG_ALIGNMENT);
816  if (!out) {
817  ret = AVERROR(ENOMEM);
818  goto fail;
819  }
820 
822  out->colorspace = outlink->colorspace;
823  out->color_range = outlink->color_range;
824 
825  if ((ret = realign_frame(link, desc, &in)) < 0)
826  goto fail;
827 
828  snprintf(buf, sizeof(buf)-1, "%d", outlink->w);
829  av_opt_set(s, "w", buf, 0);
830  snprintf(buf, sizeof(buf)-1, "%d", outlink->h);
831  av_opt_set(s, "h", buf, 0);
832 
833  link->dst->inputs[0]->format = in->format;
834  link->dst->inputs[0]->w = in->width;
835  link->dst->inputs[0]->h = in->height;
836  link->dst->inputs[0]->colorspace = in->colorspace;
837  link->dst->inputs[0]->color_range = in->color_range;
838 
839  s->nb_threads = av_clip(FFMIN(ff_filter_get_nb_threads(ctx), FFMIN(link->h, outlink->h) / MIN_TILESIZE), 1, MAX_THREADS);
840  slice_params(s, out->height, in->height);
841 
842  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
843  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
844  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
845 
846  format_init(&s->src_format, in, desc, s->colorspace_in,
847  s->primaries_in, s->trc_in, s->range_in, s->chromal_in);
848  format_init(&s->dst_format, out, odesc, s->colorspace,
849  s->primaries, s->trc, s->range, s->chromal);
850  s->first_time = 0;
851 
852  s->params.dither_type = s->dither;
853  s->params.cpu_type = ZIMG_CPU_AUTO_64B;
854  s->params.resample_filter = s->filter;
855  s->params.resample_filter_uv = s->filter;
856  s->params.nominal_peak_luminance = s->nominal_peak_luminance;
857  s->params.allow_approximate_gamma = s->approximate_gamma;
858  s->params.filter_param_a = s->params.filter_param_a_uv = s->param_a;
859  s->params.filter_param_b = s->params.filter_param_b_uv = s->param_b;
860 
861  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
862  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
863  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
864  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
865 
866  s->alpha_params.dither_type = s->dither;
867  s->alpha_params.cpu_type = ZIMG_CPU_AUTO_64B;
868  s->alpha_params.resample_filter = s->filter;
869 
870  s->alpha_src_format.width = in->width;
871  s->alpha_src_format.height = in->height;
872  s->alpha_src_format.depth = desc->comp[0].depth;
873  s->alpha_src_format.pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? (desc->comp[0].depth > 16 ? ZIMG_PIXEL_FLOAT : ZIMG_PIXEL_HALF)
874  : (desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE);
875  s->alpha_src_format.color_family = ZIMG_COLOR_GREY;
876 
877  s->alpha_dst_format.depth = odesc->comp[0].depth;
878  s->alpha_dst_format.pixel_type = (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) ? (odesc->comp[0].depth > 16 ? ZIMG_PIXEL_FLOAT : ZIMG_PIXEL_HALF)
879  : (odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE);
880  s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
881  }
882 
884  av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
885  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
886  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
887  INT_MAX);
888 
889  if (out->width != in->width || out->height != in->height)
891  if (out->color_trc != in->color_trc || out->color_primaries != in->color_primaries)
893  av_frame_side_data_remove_by_props(&out->side_data, &out->nb_side_data, changed);
894 
895  td.in = in;
896  td.out = out;
897  td.desc = desc;
898  td.odesc = odesc;
899 
900  memset(s->jobs_ret, 0, s->nb_threads * sizeof(*s->jobs_ret));
901  ret = ff_filter_execute(ctx, filter_slice, &td, s->jobs_ret, s->nb_threads);
902  for (int i = 0; ret >= 0 && i < s->nb_threads; i++)
903  if (s->jobs_ret[i] < 0)
904  ret = s->jobs_ret[i];
905  if (ret < 0) {
906  av_frame_free(&in);
907  av_frame_free(&out);
908  return ret;
909  }
910 
911  s->src_format_tmp = s->src_format;
912  s->dst_format_tmp = s->dst_format;
913  s->params_tmp = s->params;
914  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
915  s->alpha_src_format_tmp = s->alpha_src_format;
916  s->alpha_dst_format_tmp = s->alpha_dst_format;
917  s->alpha_params_tmp = s->alpha_params;
918  }
919 
920  if ((!(desc->flags & AV_PIX_FMT_FLAG_ALPHA)) && (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) ){
921  int x, y;
922  if (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) {
923  const uint16_t h_one = 0x3C00; // float2half(1.0f)
924  for (y = 0; y < out->height; y++) {
925  const ptrdiff_t row = y * out->linesize[3];
926  if (odesc->comp[0].depth == 16)
927  for (x = 0; x < out->width; x++) {
928  AV_WN16(out->data[3] + x * odesc->comp[3].step + row, h_one);
929  }
930  else
931  for (x = 0; x < out->width; x++) {
932  AV_WN32(out->data[3] + x * odesc->comp[3].step + row,
933  av_float2int(1.0f));
934  }
935  }
936  } else if (s->dst_format.depth == 8) {
937  for (y = 0; y < outlink->h; y++)
938  memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w);
939  } else {
940  const uint16_t max = (1 << s->dst_format.depth) - 1;
941  for (y = 0; y < outlink->h; y++) {
942  const ptrdiff_t row = y * out->linesize[3];
943  for (x = 0; x < out->width; x++)
944  AV_WN16(out->data[3] + x * odesc->comp[3].step + row, max);
945  }
946  }
947  }
948  } else {
949  /*no need for any filtering */
950  return ff_filter_frame(outlink, in);
951  }
952 fail:
953  av_frame_free(&in);
954  if (ret) {
955  av_frame_free(&out);
956  return ret;
957  }
958 
959  return ff_filter_frame(outlink, out);
960 }
961 
963 {
964  ZScaleContext *s = ctx->priv;
965 
966  for (int i = 0; i < s->nb_threads; i++) {
967  av_freep(&s->tmp[i]);
968  if (s->graph[i]) {
969  zimg_filter_graph_free(s->graph[i]);
970  s->graph[i] = NULL;
971  }
972  if (s->alpha_graph[i]) {
973  zimg_filter_graph_free(s->alpha_graph[i]);
974  s->alpha_graph[i] = NULL;
975  }
976  }
977 }
978 
979 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
980  char *res, int res_len, int flags)
981 {
982  ZScaleContext *s = ctx->priv;
983  int ret;
984 
985  if ( !strcmp(cmd, "width") || !strcmp(cmd, "w")
986  || !strcmp(cmd, "height") || !strcmp(cmd, "h")) {
987 
988  int old_w = s->w;
989  int old_h = s->h;
990  AVFilterLink *outlink = ctx->outputs[0];
991 
992  av_opt_set(s, cmd, args, 0);
993  if ((ret = config_props(outlink)) < 0) {
994  s->w = old_w;
995  s->h = old_h;
996  }
997  } else
998  ret = AVERROR(ENOSYS);
999 
1000  return ret;
1001 }
1002 
1003 #define OFFSET(x) offsetof(ZScaleContext, x)
1004 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
1005 #define TFLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
1006 
1007 static const AVOption zscale_options[] = {
1008  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
1009  { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
1010  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
1011  { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
1012  { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
1013  { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
1014  { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, .unit = "dither" },
1015  { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, .unit = "dither" },
1016  { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, .unit = "dither" },
1017  { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, .unit = "dither" },
1018  { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, .unit = "dither" },
1019  { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, .unit = "dither" },
1020  { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, .unit = "filter" },
1021  { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, .unit = "filter" },
1022  { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, .unit = "filter" },
1023  { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, .unit = "filter" },
1024  { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, .unit = "filter" },
1025  { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, .unit = "filter" },
1026  { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, .unit = "filter" },
1027  { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, .unit = "filter" },
1028  { "out_range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1029  { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1030  { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1031  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "range" },
1032  { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, .unit = "range" },
1033  { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, .unit = "range" },
1034  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "range" },
1035  { "tv", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, .unit = "range" },
1036  { "pc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, .unit = "range" },
1037  { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "primaries" },
1038  { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "primaries" },
1039  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "primaries" },
1040  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, .unit = "primaries" },
1041  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, .unit = "primaries" },
1042  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, .unit = "primaries" },
1043  { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, .unit = "primaries" },
1044  { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, .unit = "primaries" },
1045  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, .unit = "primaries" },
1046  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, .unit = "primaries" },
1047  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_M}, 0, 0, FLAGS, .unit = "primaries" },
1048  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_BG}, 0, 0, FLAGS, .unit = "primaries" },
1049  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, .unit = "primaries" },
1050  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, .unit = "primaries" },
1051  { "film", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_FILM}, 0, 0, FLAGS, .unit = "primaries" },
1052  { "bt2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, .unit = "primaries" },
1053  { "smpte428", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST428}, 0, 0, FLAGS, .unit = "primaries" },
1054  { "smpte431", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST431_2}, 0, 0, FLAGS, .unit = "primaries" },
1055  { "smpte432", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST432_1}, 0, 0, FLAGS, .unit = "primaries" },
1056  { "jedec-p22", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, .unit = "primaries" },
1057  { "ebu3213", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, .unit = "primaries" },
1058  { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "transfer" },
1059  { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "transfer" },
1060  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "transfer" },
1061  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, .unit = "transfer" },
1062  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, .unit = "transfer" },
1063  { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, .unit = "transfer" },
1064  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, .unit = "transfer" },
1065  { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, .unit = "transfer" },
1066  { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, .unit = "transfer" },
1067  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, .unit = "transfer" },
1068  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_M}, 0, 0, FLAGS, .unit = "transfer" },
1069  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_BG}, 0, 0, FLAGS, .unit = "transfer" },
1070  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, .unit = "transfer" },
1071  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_240M}, 0, 0, FLAGS, .unit = "transfer" },
1072  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, .unit = "transfer" },
1073  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, .unit = "transfer" },
1074  { "log100", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_100}, 0, 0, FLAGS, .unit = "transfer" },
1075  { "log316", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_316}, 0, 0, FLAGS, .unit = "transfer" },
1076  { "bt2020-10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, .unit = "transfer" },
1077  { "bt2020-12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, .unit = "transfer" },
1078  { "smpte2084", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ST2084}, 0, 0, FLAGS, .unit = "transfer" },
1079  { "iec61966-2-4", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_4},0, 0, FLAGS, .unit = "transfer" },
1080  { "iec61966-2-1", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_1},0, 0, FLAGS, .unit = "transfer" },
1081  { "arib-std-b67", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ARIB_B67}, 0, 0, FLAGS, .unit = "transfer" },
1082  { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "matrix" },
1083  { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "matrix" },
1084  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "matrix" },
1085  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, .unit = "matrix" },
1086  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, .unit = "matrix" },
1087  { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, .unit = "matrix" },
1088  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, .unit = "matrix" },
1089  { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, .unit = "matrix" },
1090  { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, .unit = "matrix" },
1091  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, .unit = "matrix" },
1092  { "gbr", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_RGB}, 0, 0, FLAGS, .unit = "matrix" },
1093  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, .unit = "matrix" },
1094  { "fcc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_FCC}, 0, 0, FLAGS, .unit = "matrix" },
1095  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, .unit = "matrix" },
1096  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, .unit = "matrix" },
1097  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_240M}, 0, 0, FLAGS, .unit = "matrix" },
1098  { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, .unit = "matrix" },
1099  { "bt2020nc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, .unit = "matrix" },
1100  { "bt2020c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, .unit = "matrix" },
1101  { "chroma-derived-nc",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL}, 0, 0, FLAGS, .unit = "matrix" },
1102  { "chroma-derived-c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_CL}, 0, 0, FLAGS, .unit = "matrix" },
1103  { "ictcp", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_ICTCP}, 0, 0, FLAGS, .unit = "matrix" },
1104  { "in_range", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1105  { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1106  { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1107  { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "primaries" },
1108  { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "primaries" },
1109  { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "transfer" },
1110  { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "transfer" },
1111  { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "matrix" },
1112  { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "matrix" },
1113  { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, .unit = "chroma" },
1114  { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, .unit = "chroma" },
1115  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "chroma" },
1116  { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, .unit = "chroma" },
1117  { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, .unit = "chroma" },
1118  { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, .unit = "chroma" },
1119  { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, .unit = "chroma" },
1120  { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, .unit = "chroma" },
1121  { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, .unit = "chroma" },
1122  { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, .unit = "chroma" },
1123  { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, .unit = "chroma" },
1124  { "npl", "set nominal peak luminance", OFFSET(nominal_peak_luminance), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, 0, DBL_MAX, FLAGS },
1125  { "agamma", "allow approximate gamma", OFFSET(approximate_gamma), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
1126  { "param_a", "parameter A, which is parameter \"b\" for bicubic, "
1127  "and the number of filter taps for lanczos", OFFSET(param_a), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
1128  { "param_b", "parameter B, which is parameter \"c\" for bicubic", OFFSET(param_b), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
1129  { NULL }
1130 };
1131 
1132 AVFILTER_DEFINE_CLASS(zscale);
1133 
1135  {
1136  .name = "default",
1137  .type = AVMEDIA_TYPE_VIDEO,
1138  .filter_frame = filter_frame,
1139  },
1140 };
1141 
1143  {
1144  .name = "default",
1145  .type = AVMEDIA_TYPE_VIDEO,
1146  .config_props = config_props,
1147  },
1148 };
1149 
1151  .p.name = "zscale",
1152  .p.description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."),
1153  .p.priv_class = &zscale_class,
1154  .p.flags = AVFILTER_FLAG_SLICE_THREADS,
1155  .init = init,
1156  .priv_size = sizeof(ZScaleContext),
1157  .uninit = uninit,
1161  .process_command = process_command,
1162 };
flags
const SwsFlags flags[]
Definition: swscale.c:61
formats
formats
Definition: signature.h:47
ff_default_get_video_buffer2
AVFrame * ff_default_get_video_buffer2(AVFilterLink *link, int w, int h, int align)
Definition: video.c:49
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:579
AVFrame::color_trc
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:665
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:551
AVFrame::color_range
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:661
query_formats
static int query_formats(const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
Definition: vf_zscale.c:187
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
av_clip
#define av_clip
Definition: common.h:100
ZScaleContext::jobs_ret
int jobs_ret[MAX_THREADS]
Definition: vf_zscale.c:117
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
var_name
var_name
Definition: noise.c:47
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:435
ZScaleContext::colorspace_in
int colorspace_in
Definition: vf_zscale.c:98
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:644
convert_range_from_zimg
static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range)
Definition: vf_zscale.c:524
ThreadData::odesc
const AVPixFmtDescriptor * odesc
Definition: vf_zscale.c:133
out
FILE * out
Definition: movenc.c:55
ZScaleContext::out_slice_end
int out_slice_end[MAX_THREADS]
Definition: vf_zscale.c:121
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_zscale.c:962
ZScaleContext::params_tmp
zimg_graph_builder_params params_tmp
Definition: vf_zscale.c:128
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1053
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3341
AVCOL_TRC_LINEAR
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:653
AVCHROMA_LOC_BOTTOM
@ AVCHROMA_LOC_BOTTOM
Definition: pixfmt.h:776
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
int64_t
long long int64_t
Definition: coverity.c:34
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:663
ZScaleContext::alpha_params_tmp
zimg_graph_builder_params alpha_params_tmp
Definition: vf_zscale.c:128
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:63
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:571
AVFrame::colorspace
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:672
ZScaleContext::chromal
int chromal
Definition: vf_zscale.c:97
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: filters.h:262
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:410
VAR_VSUB
@ VAR_VSUB
Definition: vf_zscale.c:75
pixdesc.h
TFLAGS
#define TFLAGS
Definition: vf_zscale.c:1005
var_names
static const char *const var_names[]
Definition: vf_zscale.c:51
AVFrame::width
int width
Definition: frame.h:482
config_props
static int config_props(AVFilterLink *outlink)
Definition: vf_zscale.c:261
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:578
w
uint8_t w
Definition: llviddspenc.c:38
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:750
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:573
ZScaleContext::alpha_src_format
zimg_image_format alpha_src_format
Definition: vf_zscale.c:124
AVOption
AVOption.
Definition: opt.h:429
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:647
data
const char data[16]
Definition: mxf.c:149
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:528
AVCOL_PRI_JEDEC_P22
@ AVCOL_PRI_JEDEC_P22
Definition: pixfmt.h:636
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:580
ThreadData::desc
const AVPixFmtDescriptor * desc
Definition: vf_tonemap.c:176
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:674
float.h
AVCOL_TRC_BT2020_12
@ AVCOL_TRC_BT2020_12
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:660
filter
void(* filter)(uint8_t *src, int stride, int qscale)
Definition: h263dsp.c:29
pixel_fmts
static enum AVPixelFormat pixel_fmts[]
Definition: vf_amplify.c:52
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
max
#define max(a, b)
Definition: cuda_runtime.h:33
mathematics.h
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
zscale_options
static const AVOption zscale_options[]
Definition: vf_zscale.c:1007
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:619
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:203
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:526
intfloat.h
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:155
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:574
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:685
ff_make_formats_list_singleton
AVFilterFormats * ff_make_formats_list_singleton(int fmt)
Equivalent to ff_make_format_list({const int[]}{ fmt, -1 })
Definition: formats.c:529
ZScaleContext::primaries
int primaries
Definition: vf_zscale.c:95
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:507
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:431
ZScaleContext::nb_threads
int nb_threads
Definition: vf_zscale.c:116
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
realign_frame
static int realign_frame(AVFilterLink *link, const AVPixFmtDescriptor *desc, AVFrame **frame)
Definition: vf_zscale.c:670
formats.h
ZScaleContext::param_b
double param_b
Definition: vf_zscale.c:107
VAR_OUT_W
@ VAR_OUT_W
Definition: vf_zscale.c:69
primaries
enum AVColorPrimaries primaries
Definition: mediacodec_wrapper.c:2612
AVFrame::chroma_location
enum AVChromaLocation chroma_location
Definition: frame.h:674
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3381
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:679
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:570
convert_primaries
static int convert_primaries(enum AVColorPrimaries color_primaries)
Definition: vf_zscale.c:481
ZScaleContext::out_slice_start
int out_slice_start[MAX_THREADS]
Definition: vf_zscale.c:120
ZScaleContext::dst_format
zimg_image_format dst_format
Definition: vf_zscale.c:123
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:546
AVCOL_TRC_IEC61966_2_1
@ AVCOL_TRC_IEC61966_2_1
IEC 61966-2-1 (sRGB or sYCC)
Definition: pixfmt.h:658
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict, int *got_output)
Handle slice ends.
Definition: mpeg12dec.c:1710
av_color_space_name
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:3717
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
ZScaleContext::src_format
zimg_image_format src_format
Definition: vf_zscale.c:123
fail
#define fail()
Definition: checkasm.h:193
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:544
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:580
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:526
AVCOL_TRC_GAMMA28
@ AVCOL_TRC_GAMMA28
also ITU-R BT470BG
Definition: pixfmt.h:650
convert_matrix
static int convert_matrix(enum AVColorSpace colorspace)
Definition: vf_zscale.c:411
AV_PIX_FMT_GRAYF16
#define AV_PIX_FMT_GRAYF16
Definition: pixfmt.h:564
ZScaleContext::alpha_params
zimg_graph_builder_params alpha_params
Definition: vf_zscale.c:127
av_opt_set
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:835
AVCOL_TRC_LOG_SQRT
@ AVCOL_TRC_LOG_SQRT
"Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"
Definition: pixfmt.h:655
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
AV_SIDE_DATA_PROP_SIZE_DEPENDENT
@ AV_SIDE_DATA_PROP_SIZE_DEPENDENT
Side data depends on the video dimensions.
Definition: frame.h:292
AVCOL_TRC_GAMMA22
@ AVCOL_TRC_GAMMA22
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:649
AVFilterPad
A filter pad used for either input or output.
Definition: filters.h:38
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:979
VAR_SAR
@ VAR_SAR
Definition: vf_zscale.c:72
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:557
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:531
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:283
aligned
static int aligned(int val)
Definition: dashdec.c:171
ZScaleContext::tmp
void * tmp[MAX_THREADS]
Definition: vf_zscale.c:115
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:209
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:540
ZScaleContext::graph
zimg_filter_graph * graph[MAX_THREADS]
Definition: vf_zscale.c:129
FFFilter
Definition: filters.h:265
ZScaleContext::alpha_dst_format_tmp
zimg_image_format alpha_dst_format_tmp
Definition: vf_zscale.c:126
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:86
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:548
ZScaleContext::param_a
double param_a
Definition: vf_zscale.c:106
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:198
AVCHROMA_LOC_TOP
@ AVCHROMA_LOC_TOP
Definition: pixfmt.h:774
AV_PIX_FMT_GBRAP14
#define AV_PIX_FMT_GBRAP14
Definition: pixfmt.h:550
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:549
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:108
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:599
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:541
ZScaleContext::force_original_aspect_ratio
int force_original_aspect_ratio
Definition: vf_zscale.c:113
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:680
approximate_gamma
static const double approximate_gamma[AVCOL_TRC_NB]
Definition: csp.c:135
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Underlying C type is double.
Definition: opt.h:267
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:678
ZScaleContext::src_format_tmp
zimg_image_format src_format_tmp
Definition: vf_zscale.c:125
filters.h
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:577
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:525
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:230
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:539
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:49
AVCOL_PRI_SMPTE428
@ AVCOL_PRI_SMPTE428
SMPTE ST 428-1 (CIE 1931 XYZ)
Definition: pixfmt.h:631
ZScaleContext::first_time
int first_time
Definition: vf_zscale.c:112
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:73
ZScaleContext::dst_format_tmp
zimg_image_format dst_format_tmp
Definition: vf_zscale.c:125
AVCOL_PRI_SMPTE240M
@ AVCOL_PRI_SMPTE240M
identical to above, also called "SMPTE C" even though it uses D65
Definition: pixfmt.h:628
color_range
color_range
Definition: vf_selectivecolor.c:43
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: filters.h:263
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:565
ZScaleContext::in_slice_start
double in_slice_start[MAX_THREADS]
Definition: vf_zscale.c:118
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:622
NAN
#define NAN
Definition: mathematics.h:115
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:87
AVCOL_SPC_CHROMA_DERIVED_CL
@ AVCOL_SPC_CHROMA_DERIVED_CL
Chromaticity-derived constant luminance system.
Definition: pixfmt.h:688
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:626
ff_vf_zscale
const FFFilter ff_vf_zscale
Definition: vf_zscale.c:1150
AVCOL_PRI_SMPTE170M
@ AVCOL_PRI_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:627
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:508
if
if(ret)
Definition: filter_design.txt:179
av_color_range_name
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:3657
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:547
ZScaleContext::params
zimg_graph_builder_params params
Definition: vf_zscale.c:127
print_zimg_error
static int print_zimg_error(AVFilterContext *ctx)
Definition: vf_zscale.c:381
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:75
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:601
FLAGS
#define FLAGS
Definition: vf_zscale.c:1004
AVCHROMA_LOC_LEFT
@ AVCHROMA_LOC_LEFT
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:771
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:773
AVCOL_TRC_IEC61966_2_4
@ AVCOL_TRC_IEC61966_2_4
IEC 61966-2-4.
Definition: pixfmt.h:656
isnan
#define isnan(x)
Definition: libm.h:342
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:85
compare_zimg_image_formats
static int compare_zimg_image_formats(zimg_image_format *img_fmt0, zimg_image_format *img_fmt1)
Definition: vf_zscale.c:536
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:265
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:621
parseutils.h
slice_params
static void slice_params(ZScaleContext *s, int out_h, int in_h)
Definition: vf_zscale.c:246
convert_range
static int convert_range(enum AVColorRange color_range)
Definition: vf_zscale.c:512
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:659
AVCOL_SPC_YCGCO
@ AVCOL_SPC_YCGCO
used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16
Definition: pixfmt.h:682
ZScaleContext::dither
int dither
Definition: vf_zscale.c:91
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:529
update_output_color_information
static void update_output_color_information(ZScaleContext *s, AVFrame *frame)
Definition: vf_zscale.c:701
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:543
ff_all_color_spaces
AVFilterFormats * ff_all_color_spaces(void)
Construct an AVFilterFormats representing all possible color spaces.
Definition: formats.c:630
AVPixFmtDescriptor::flags
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:94
AV_PIX_FMT_GBRPF16
#define AV_PIX_FMT_GBRPF16
Definition: pixfmt.h:559
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:716
AVFilterFormatsConfig
Lists of formats / etc.
Definition: avfilter.h:109
AVCOL_PRI_BT2020
@ AVCOL_PRI_BT2020
ITU-R BT2020.
Definition: pixfmt.h:630
color_primaries
static const AVColorPrimariesDesc color_primaries[AVCOL_PRI_NB]
Definition: csp.c:76
AVCOL_TRC_SMPTE2084
@ AVCOL_TRC_SMPTE2084
SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems.
Definition: pixfmt.h:661
AVCOL_PRI_SMPTE431
@ AVCOL_PRI_SMPTE431
SMPTE ST 431-2 (2011) / DCI P3.
Definition: pixfmt.h:633
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:94
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:805
AVCOL_TRC_SMPTE240M
@ AVCOL_TRC_SMPTE240M
Definition: pixfmt.h:652
AVCOL_PRI_FILM
@ AVCOL_PRI_FILM
colour filters using Illuminant C
Definition: pixfmt.h:629
AV_WN32
#define AV_WN32(p, v)
Definition: intreadwrite.h:372
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:713
AVCOL_TRC_LOG
@ AVCOL_TRC_LOG
"Logarithmic transfer characteristic (100:1 range)"
Definition: pixfmt.h:654
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:561
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:533
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:124
planes
static const struct @489 planes[]
VAR_OHSUB
@ VAR_OHSUB
Definition: vf_zscale.c:76
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:535
filter_slice
static int filter_slice(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
Definition: vf_zscale.c:713
AVCHROMA_LOC_UNSPECIFIED
@ AVCHROMA_LOC_UNSPECIFIED
Definition: pixfmt.h:770
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:497
range
enum AVColorRange range
Definition: mediacodec_wrapper.c:2594
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:1142
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:174
ff_all_color_ranges
AVFilterFormats * ff_all_color_ranges(void)
Construct an AVFilterFormats representing all possible color ranges.
Definition: formats.c:646
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:575
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
av_frame_side_data_remove_by_props
void av_frame_side_data_remove_by_props(AVFrameSideData ***sd, int *nb_sd, int props)
Remove and free all side data instances that match any of the given side data properties.
Definition: side_data.c:115
AVCOL_SPC_CHROMA_DERIVED_NCL
@ AVCOL_SPC_CHROMA_DERIVED_NCL
Chromaticity-derived non-constant luminance system.
Definition: pixfmt.h:687
VAR_HSUB
@ VAR_HSUB
Definition: vf_zscale.c:74
AVCOL_TRC_BT709
@ AVCOL_TRC_BT709
also ITU-R BT1361
Definition: pixfmt.h:646
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:769
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:681
ZScaleContext::in_slice_end
double in_slice_end[MAX_THREADS]
Definition: vf_zscale.c:119
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
AVCOL_SPC_BT2020_NCL
@ AVCOL_SPC_BT2020_NCL
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:684
filter_frame
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_zscale.c:785
transfer
enum AVColorTransferCharacteristic transfer
Definition: mediacodec_wrapper.c:2622
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:545
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:673
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:840
ThreadData
Used for passing data between threads.
Definition: dsddec.c:71
VAR_IW
@ VAR_IW
Definition: vf_zscale.c:67
FILTER_QUERY_FUNC2
#define FILTER_QUERY_FUNC2(func)
Definition: filters.h:239
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:107
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:256
VAR_OH
@ VAR_OH
Definition: vf_zscale.c:70
AVFilterPad::name
const char * name
Pad name.
Definition: filters.h:44
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:676
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:733
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:527
AV_SIDE_DATA_PROP_COLOR_DEPENDENT
@ AV_SIDE_DATA_PROP_COLOR_DEPENDENT
Side data depends on the video color space.
Definition: frame.h:299
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:624
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:572
convert_chroma_location
static int convert_chroma_location(enum AVChromaLocation chroma_location)
Definition: vf_zscale.c:391
AVFrame::sample_aspect_ratio
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:507
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:532
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:537
AVFrame::height
int height
Definition: frame.h:482
AVCOL_TRC_ARIB_STD_B67
@ AVCOL_TRC_ARIB_STD_B67
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:665
ff_filter_execute
int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: avfilter.c:1658
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_zscale.c:137
AVCHROMA_LOC_CENTER
@ AVCHROMA_LOC_CENTER
MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0.
Definition: pixfmt.h:772
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AVCOL_SPC_FCC
@ AVCOL_SPC_FCC
FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:678
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:576
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition: opt.h:259
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:562
VAR_IN_H
@ VAR_IN_H
Definition: vf_zscale.c:68
VAR_OVSUB
@ VAR_OVSUB
Definition: vf_zscale.c:77
AV_PIX_FMT_GBRAPF16
#define AV_PIX_FMT_GBRAPF16
Definition: pixfmt.h:560
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:651
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:1003
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:78
ZScaleContext::alpha_graph
zimg_filter_graph * alpha_graph[MAX_THREADS]
Definition: vf_zscale.c:129
AVFilterContext
An instance of a filter.
Definition: avfilter.h:257
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
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:150
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
FFFilter::p
AVFilter p
The public AVFilter.
Definition: filters.h:269
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:77
MIN_TILESIZE
#define MIN_TILESIZE
Definition: vf_zscale.c:48
mem.h
convert_trc
static int convert_trc(enum AVColorTransferCharacteristic color_trc)
Definition: vf_zscale.c:444
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:634
ZScaleContext::alpha_src_format_tmp
zimg_image_format alpha_src_format_tmp
Definition: vf_zscale.c:126
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Underlying C type is int.
Definition: opt.h:327
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:80
VAR_DAR
@ VAR_DAR
Definition: vf_zscale.c:73
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:455
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:79
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
h
h
Definition: vp9dsp_template.c:2070
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:538
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Underlying C type is a uint8_t* that is either NULL or points to a C string allocated with the av_mal...
Definition: opt.h:276
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:675
AVColorRange
AVColorRange
Visual content value range.
Definition: pixfmt.h:715
AVCOL_SPC_ICTCP
@ AVCOL_SPC_ICTCP
ITU-R BT.2100-0, ICtCp.
Definition: pixfmt.h:689
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
Definition: opt.h:299
snprintf
#define snprintf
Definition: snprintf.h:34
VAR_OUT_H
@ VAR_OUT_H
Definition: vf_zscale.c:70
AVCHROMA_LOC_BOTTOMLEFT
@ AVCHROMA_LOC_BOTTOMLEFT
Definition: pixfmt.h:775
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:173
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:536
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:3261
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:1134
AV_WN16
#define AV_WN16(p, v)
Definition: intreadwrite.h:368
dither
static const uint8_t dither[8][8]
Definition: vf_fspp.c:62