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/eval.h"
38 #include "libavutil/internal.h"
39 #include "libavutil/intreadwrite.h"
40 #include "libavutil/mathematics.h"
41 #include "libavutil/mem.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/parseutils.h"
44 #include "libavutil/pixdesc.h"
45 
46 #define ZIMG_ALIGNMENT 64
47 #define MIN_TILESIZE 64
48 #define MAX_THREADS 64
49 
50 static const char *const var_names[] = {
51  "in_w", "iw",
52  "in_h", "ih",
53  "out_w", "ow",
54  "out_h", "oh",
55  "a",
56  "sar",
57  "dar",
58  "hsub",
59  "vsub",
60  "ohsub",
61  "ovsub",
62  NULL
63 };
64 
65 enum var_name {
78 };
79 
80 typedef struct ZScaleContext {
81  const AVClass *class;
82 
83  /**
84  * New dimensions. Special values are:
85  * 0 = original width/height
86  * -1 = keep original aspect
87  * -N = try to keep aspect but make sure it is divisible by N
88  */
89  int w, h;
90  int dither;
91  int filter;
93  int trc;
94  int primaries;
95  int range;
96  int chromal;
98  int trc_in;
100  int range_in;
102  char *size_str;
105  double param_a;
106  double param_b;
107 
108  char *w_expr; ///< width expression string
109  char *h_expr; ///< height expression string
110 
115 
118 
119  void *tmp[MAX_THREADS]; //separate for each thread;
126 
127  zimg_image_format src_format, dst_format;
128  zimg_image_format alpha_src_format, alpha_dst_format;
129  zimg_image_format src_format_tmp, dst_format_tmp;
131  zimg_graph_builder_params alpha_params, params;
132  zimg_graph_builder_params alpha_params_tmp, params_tmp;
133  zimg_filter_graph *alpha_graph[MAX_THREADS], *graph[MAX_THREADS];
134 } ZScaleContext;
135 
136 typedef struct ThreadData {
138  AVFrame *in, *out;
139 } ThreadData;
140 
142 {
143  ZScaleContext *s = ctx->priv;
144  int ret;
145  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
146  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
147  zimg_image_format_default(&s->src_format_tmp, ZIMG_API_VERSION);
148  zimg_image_format_default(&s->dst_format_tmp, ZIMG_API_VERSION);
149 
150  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
151  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
152  zimg_image_format_default(&s->alpha_src_format_tmp, ZIMG_API_VERSION);
153  zimg_image_format_default(&s->alpha_dst_format_tmp, ZIMG_API_VERSION);
154 
155  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
156  zimg_graph_builder_params_default(&s->params_tmp, ZIMG_API_VERSION);
157  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
158  zimg_graph_builder_params_default(&s->alpha_params_tmp, ZIMG_API_VERSION);
159 
160  if (s->size_str && (s->w_expr || s->h_expr)) {
162  "Size and width/height expressions cannot be set at the same time.\n");
163  return AVERROR(EINVAL);
164  }
165 
166  if (s->w_expr && !s->h_expr)
167  FFSWAP(char *, s->w_expr, s->size_str);
168 
169  if (s->size_str) {
170  char buf[32];
171  if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) {
173  "Invalid size '%s'\n", s->size_str);
174  return ret;
175  }
176  snprintf(buf, sizeof(buf)-1, "%d", s->w);
177  av_opt_set(s, "w", buf, 0);
178  snprintf(buf, sizeof(buf)-1, "%d", s->h);
179  av_opt_set(s, "h", buf, 0);
180  }
181  if (!s->w_expr)
182  av_opt_set(s, "w", "iw", 0);
183  if (!s->h_expr)
184  av_opt_set(s, "h", "ih", 0);
185 
186  return 0;
187 }
188 
189 static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range);
190 
192 {
193  ZScaleContext *s = ctx->priv;
195  static const enum AVPixelFormat pixel_fmts[] = {
217  };
218  int ret;
219 
220  ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->outcfg.formats);
221  if (ret < 0)
222  return ret;
223  ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->incfg.formats);
224  if (ret < 0)
225  return ret;
226 
227  if ((ret = ff_formats_ref(ff_all_color_spaces(), &ctx->inputs[0]->outcfg.color_spaces)) < 0 ||
228  (ret = ff_formats_ref(ff_all_color_ranges(), &ctx->inputs[0]->outcfg.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, &ctx->outputs[0]->incfg.color_spaces)) < 0)
235  return ret;
236 
237  formats = s->range != -1
240  if ((ret = ff_formats_ref(formats, &ctx->outputs[0]->incfg.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_TRACE, "w:%d h:%d fmt:%s sar:%d/%d -> w:%d h:%d fmt:%s sar:%d/%d\n",
365  inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
366  inlink->sample_aspect_ratio.num, inlink->sample_aspect_ratio.den,
367  outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format),
368  outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den);
369  return 0;
370 
371 fail:
373  "Error when evaluating the expression '%s'.\n"
374  "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n",
375  expr, s->w_expr, s->h_expr);
376  return ret;
377 }
378 
380 {
381  char err_msg[1024];
382  int err_code = zimg_get_last_error(err_msg, sizeof(err_msg));
383 
384  av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg);
385 
386  return AVERROR_EXTERNAL;
387 }
388 
389 static int convert_chroma_location(enum AVChromaLocation chroma_location)
390 {
391  switch (chroma_location) {
393  case AVCHROMA_LOC_LEFT:
394  return ZIMG_CHROMA_LEFT;
395  case AVCHROMA_LOC_CENTER:
396  return ZIMG_CHROMA_CENTER;
398  return ZIMG_CHROMA_TOP_LEFT;
399  case AVCHROMA_LOC_TOP:
400  return ZIMG_CHROMA_TOP;
402  return ZIMG_CHROMA_BOTTOM_LEFT;
403  case AVCHROMA_LOC_BOTTOM:
404  return ZIMG_CHROMA_BOTTOM;
405  }
406  return ZIMG_CHROMA_LEFT;
407 }
408 
409 static int convert_matrix(enum AVColorSpace colorspace)
410 {
411  switch (colorspace) {
412  case AVCOL_SPC_RGB:
413  return ZIMG_MATRIX_RGB;
414  case AVCOL_SPC_BT709:
415  return ZIMG_MATRIX_709;
417  return ZIMG_MATRIX_UNSPECIFIED;
418  case AVCOL_SPC_FCC:
419  return ZIMG_MATRIX_FCC;
420  case AVCOL_SPC_BT470BG:
421  return ZIMG_MATRIX_470BG;
422  case AVCOL_SPC_SMPTE170M:
423  return ZIMG_MATRIX_170M;
424  case AVCOL_SPC_SMPTE240M:
425  return ZIMG_MATRIX_240M;
426  case AVCOL_SPC_YCGCO:
427  return ZIMG_MATRIX_YCGCO;
429  return ZIMG_MATRIX_2020_NCL;
430  case AVCOL_SPC_BT2020_CL:
431  return ZIMG_MATRIX_2020_CL;
433  return ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL;
435  return ZIMG_MATRIX_CHROMATICITY_DERIVED_CL;
436  case AVCOL_SPC_ICTCP:
437  return ZIMG_MATRIX_ICTCP;
438  }
439  return ZIMG_MATRIX_UNSPECIFIED;
440 }
441 
442 static int convert_trc(enum AVColorTransferCharacteristic color_trc)
443 {
444  switch (color_trc) {
446  return ZIMG_TRANSFER_UNSPECIFIED;
447  case AVCOL_TRC_BT709:
448  return ZIMG_TRANSFER_709;
449  case AVCOL_TRC_GAMMA22:
450  return ZIMG_TRANSFER_470_M;
451  case AVCOL_TRC_GAMMA28:
452  return ZIMG_TRANSFER_470_BG;
453  case AVCOL_TRC_SMPTE170M:
454  return ZIMG_TRANSFER_601;
455  case AVCOL_TRC_SMPTE240M:
456  return ZIMG_TRANSFER_240M;
457  case AVCOL_TRC_LINEAR:
458  return ZIMG_TRANSFER_LINEAR;
459  case AVCOL_TRC_LOG:
460  return ZIMG_TRANSFER_LOG_100;
461  case AVCOL_TRC_LOG_SQRT:
462  return ZIMG_TRANSFER_LOG_316;
464  return ZIMG_TRANSFER_IEC_61966_2_4;
465  case AVCOL_TRC_BT2020_10:
466  return ZIMG_TRANSFER_2020_10;
467  case AVCOL_TRC_BT2020_12:
468  return ZIMG_TRANSFER_2020_12;
469  case AVCOL_TRC_SMPTE2084:
470  return ZIMG_TRANSFER_ST2084;
472  return ZIMG_TRANSFER_ARIB_B67;
474  return ZIMG_TRANSFER_IEC_61966_2_1;
475  }
476  return ZIMG_TRANSFER_UNSPECIFIED;
477 }
478 
480 {
481  switch (color_primaries) {
483  return ZIMG_PRIMARIES_UNSPECIFIED;
484  case AVCOL_PRI_BT709:
485  return ZIMG_PRIMARIES_709;
486  case AVCOL_PRI_BT470M:
487  return ZIMG_PRIMARIES_470_M;
488  case AVCOL_PRI_BT470BG:
489  return ZIMG_PRIMARIES_470_BG;
490  case AVCOL_PRI_SMPTE170M:
491  return ZIMG_PRIMARIES_170M;
492  case AVCOL_PRI_SMPTE240M:
493  return ZIMG_PRIMARIES_240M;
494  case AVCOL_PRI_FILM:
495  return ZIMG_PRIMARIES_FILM;
496  case AVCOL_PRI_BT2020:
497  return ZIMG_PRIMARIES_2020;
498  case AVCOL_PRI_SMPTE428:
499  return ZIMG_PRIMARIES_ST428;
500  case AVCOL_PRI_SMPTE431:
501  return ZIMG_PRIMARIES_ST431_2;
502  case AVCOL_PRI_SMPTE432:
503  return ZIMG_PRIMARIES_ST432_1;
504  case AVCOL_PRI_JEDEC_P22:
505  return ZIMG_PRIMARIES_EBU3213_E;
506  }
507  return ZIMG_PRIMARIES_UNSPECIFIED;
508 }
509 
511 {
512  switch (color_range) {
514  case AVCOL_RANGE_MPEG:
515  return ZIMG_RANGE_LIMITED;
516  case AVCOL_RANGE_JPEG:
517  return ZIMG_RANGE_FULL;
518  }
519  return ZIMG_RANGE_LIMITED;
520 }
521 
522 static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range)
523 {
524  switch (color_range) {
525  case ZIMG_RANGE_LIMITED:
526  return AVCOL_RANGE_MPEG;
527  case ZIMG_RANGE_FULL:
528  return AVCOL_RANGE_JPEG;
529  }
531 }
532 
533 /* returns 0 if image formats are the same and 1 otherwise */
534 static int compare_zimg_image_formats(zimg_image_format *img_fmt0, zimg_image_format *img_fmt1)
535 {
536  return ((img_fmt0->chroma_location != img_fmt1->chroma_location) ||
537 #if ZIMG_API_VERSION >= 0x204
538  (img_fmt0->alpha != img_fmt1->alpha) ||
539 #endif
540  (img_fmt0->color_family != img_fmt1->color_family) ||
541  (img_fmt0->color_primaries != img_fmt1->color_primaries) ||
542  (img_fmt0->depth != img_fmt1->depth) ||
543  (img_fmt0->field_parity != img_fmt1->field_parity) ||
544  (img_fmt0->height != img_fmt1->height) ||
545  (img_fmt0->matrix_coefficients != img_fmt1->matrix_coefficients) ||
546  (img_fmt0->pixel_range != img_fmt1->pixel_range) ||
547  (img_fmt0->pixel_type != img_fmt1->pixel_type) ||
548  (img_fmt0->subsample_h != img_fmt1->subsample_h) ||
549  (img_fmt0->subsample_w != img_fmt1->subsample_w) ||
550  (img_fmt0->transfer_characteristics != img_fmt1->transfer_characteristics) ||
551  (img_fmt0->width != img_fmt1->width));
552 }
553 
554 /* returns 0 if graph builder parameters are the same and 1 otherwise */
555 static int compare_zimg_graph_builder_params(zimg_graph_builder_params *parm0, zimg_graph_builder_params *parm1)
556 {
557  /* the parameters that could be changed inside a single ffmpeg zscale invocation are checked only
558  and NaN values that are default for some params are treated properly*/
559  int ret = (parm0->allow_approximate_gamma != parm1->allow_approximate_gamma) ||
560  (parm0->dither_type != parm1->dither_type) ||
561  (parm0->resample_filter != parm1->resample_filter) ||
562  (parm0->resample_filter_uv != parm1->resample_filter_uv);
563 
564  if ((isnan(parm0->nominal_peak_luminance) == 0) || (isnan(parm1->nominal_peak_luminance) == 0))
565  ret = ret || (parm0->nominal_peak_luminance != parm1->nominal_peak_luminance);
566  if ((isnan(parm0->filter_param_a) == 0) || (isnan(parm1->filter_param_a) == 0))
567  ret = ret || (parm0->filter_param_a != parm1->filter_param_a);
568  if ((isnan(parm0->filter_param_a_uv) == 0) || (isnan(parm1->filter_param_a_uv) == 0))
569  ret = ret || (parm0->filter_param_a_uv != parm1->filter_param_a_uv);
570  if ((isnan(parm0->filter_param_b) == 0) || (isnan(parm1->filter_param_b) == 0))
571  ret = ret || (parm0->filter_param_b != parm1->filter_param_b);
572  if ((isnan(parm0->filter_param_b_uv) == 0) || (isnan(parm1->filter_param_b_uv) == 0))
573  ret = ret || (parm0->filter_param_b_uv != parm1->filter_param_b_uv);
574 
575  return ret;
576 }
577 
578 static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc,
579  int colorspace, int primaries, int transfer, int range, int location)
580 {
581  format->width = frame->width;
582  format->height = frame->height;
583  format->subsample_w = desc->log2_chroma_w;
584  format->subsample_h = desc->log2_chroma_h;
585  format->depth = desc->comp[0].depth;
586  format->pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
587  format->color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
588  format->matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : colorspace == -1 ? convert_matrix(frame->colorspace) : colorspace;
589  format->color_primaries = primaries == -1 ? convert_primaries(frame->color_primaries) : primaries;
590  format->transfer_characteristics = transfer == -1 ? convert_trc(frame->color_trc) : transfer;
591  format->pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : range == -1 ? convert_range(frame->color_range) : range;
592  format->chroma_location = location == -1 ? convert_chroma_location(frame->chroma_location) : location;
593 }
594 
595 static int graphs_build(AVFrame *in, AVFrame *out, const AVPixFmtDescriptor *desc, const AVPixFmtDescriptor *out_desc,
596  AVFilterContext *ctx, int job_nr, int n_jobs)
597 {
598  ZScaleContext *s = ctx->priv;
599  int ret;
600  size_t size;
601  zimg_image_format src_format;
602  zimg_image_format dst_format;
603  zimg_image_format alpha_src_format;
604  zimg_image_format alpha_dst_format;
605  const double in_slice_start = s->in_slice_start[job_nr];
606  const double in_slice_end = s->in_slice_end[job_nr];
607  const int out_slice_start = s->out_slice_start[job_nr];
608  const int out_slice_end = s->out_slice_end[job_nr];
609 
610  src_format = s->src_format;
611  dst_format = s->dst_format;
612  /* The input slice is specified through the active_region field,
613  unlike the output slice.
614  according to zimg requirements input and output slices should have even dimensions */
615  src_format.active_region.width = in->width;
616  src_format.active_region.height = in_slice_end - in_slice_start;
617  src_format.active_region.left = 0;
618  src_format.active_region.top = in_slice_start;
619  //dst now is the single tile only!!
620  dst_format.width = out->width;
621  dst_format.height = out_slice_end - out_slice_start;
622 
623  if (s->graph[job_nr]) {
624  zimg_filter_graph_free(s->graph[job_nr]);
625  }
626  s->graph[job_nr] = zimg_filter_graph_build(&src_format, &dst_format, &s->params);
627  if (!s->graph[job_nr])
628  return print_zimg_error(ctx);
629 
630  ret = zimg_filter_graph_get_tmp_size(s->graph[job_nr], &size);
631  if (ret)
632  return print_zimg_error(ctx);
633 
634  if (s->tmp[job_nr])
635  av_freep(&s->tmp[job_nr]);
636  s->tmp[job_nr] = av_calloc(size, 1);
637  if (!s->tmp[job_nr])
638  return AVERROR(ENOMEM);
639 
640  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && out_desc->flags & AV_PIX_FMT_FLAG_ALPHA) {
641  alpha_src_format = s->alpha_src_format;
642  alpha_dst_format = s->alpha_dst_format;
643  /* The input slice is specified through the active_region field, unlike the output slice.
644  according to zimg requirements input and output slices should have even dimentions */
645  alpha_src_format.active_region.width = in->width;
646  alpha_src_format.active_region.height = in_slice_end - in_slice_start;
647  alpha_src_format.active_region.left = 0;
648  alpha_src_format.active_region.top = in_slice_start;
649  //dst now is the single tile only!!
650  alpha_dst_format.width = out->width;
651  alpha_dst_format.height = out_slice_end - out_slice_start;
652 
653  if (s->alpha_graph[job_nr]) {
654  zimg_filter_graph_free(s->alpha_graph[job_nr]);
655  }
656  s->alpha_graph[job_nr] = zimg_filter_graph_build(&alpha_src_format, &alpha_dst_format, &s->alpha_params);
657  if (!s->alpha_graph[job_nr])
658  return print_zimg_error(ctx);
659  }
660  return 0;
661 }
662 
663 static int realign_frame(const AVPixFmtDescriptor *desc, AVFrame **frame, int needs_copy)
664 {
665  AVFrame *aligned = NULL;
666  int ret = 0, plane, planes;
667 
668  /* Realign any unaligned input frame. */
669  planes = av_pix_fmt_count_planes(desc->nb_components);
670  for (plane = 0; plane < planes; plane++) {
671  int p = desc->comp[plane].plane;
672  if ((uintptr_t)(*frame)->data[p] % ZIMG_ALIGNMENT || (*frame)->linesize[p] % ZIMG_ALIGNMENT) {
673  if (!(aligned = av_frame_alloc())) {
674  ret = AVERROR(ENOMEM);
675  goto fail;
676  }
677 
678  aligned->format = (*frame)->format;
679  aligned->width = (*frame)->width;
680  aligned->height = (*frame)->height;
681 
683  goto fail;
684 
685  if (needs_copy && (ret = av_frame_copy(aligned, *frame)) < 0)
686  goto fail;
687 
688  if (needs_copy && (ret = av_frame_copy_props(aligned, *frame)) < 0)
689  goto fail;
690 
692  *frame = aligned;
693  return 0;
694  }
695  }
696 
697 fail:
699  return ret;
700 }
701 
703 {
704  if (s->primaries != -1)
705  frame->color_primaries = (int)s->dst_format.color_primaries;
706 
707  if (s->trc != -1)
708  frame->color_trc = (int)s->dst_format.transfer_characteristics;
709 
710  if (s->chromal != -1)
711  frame->chroma_location = (int)s->dst_format.chroma_location + 1;
712 }
713 
714 static int filter_slice(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
715 {
716  ThreadData *td = data;
717  int ret = 0;
718  int p;
719  int need_gb;
720  ZScaleContext *s = ctx->priv;
721  zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
722  zimg_image_buffer dst_buf = { ZIMG_API_VERSION };
723  const int out_slice_start = s->out_slice_start[job_nr];
724 
725  /* create zimg filter graphs for each thread
726  only if not created earlier or there is some change in frame parameters */
727  need_gb = compare_zimg_image_formats(&s->src_format, &s->src_format_tmp) ||
728  compare_zimg_image_formats(&s->dst_format, &s->dst_format_tmp) ||
729  compare_zimg_graph_builder_params(&s->params, &s->params_tmp);
730  if(td->desc->flags & AV_PIX_FMT_FLAG_ALPHA && td->odesc->flags & AV_PIX_FMT_FLAG_ALPHA)
731  need_gb = need_gb || compare_zimg_image_formats(&s->alpha_src_format, &s->alpha_src_format_tmp) ||
732  compare_zimg_image_formats(&s->alpha_dst_format, &s->alpha_dst_format_tmp) ||
733  compare_zimg_graph_builder_params(&s->alpha_params, &s->alpha_params_tmp);
734 
735  if (need_gb){
736  ret = graphs_build(td->in, td->out, td->desc, td->odesc, ctx, job_nr, n_jobs);
737  if (ret < 0)
738  return print_zimg_error(ctx);
739  }
740  for (int i = 0; i < 3; i++) {
741  const int vsamp = i >= 1 ? td->odesc->log2_chroma_h : 0;
742 
743  p = td->desc->comp[i].plane;
744 
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  p = td->odesc->comp[i].plane;
750  dst_buf.plane[i].data = td->out->data[p] + td->out->linesize[p] * (out_slice_start >> vsamp);
751  dst_buf.plane[i].stride = td->out->linesize[p];
752  dst_buf.plane[i].mask = -1;
753  }
754  if (!s->graph[job_nr])
755  return AVERROR(EINVAL);
756  ret = zimg_filter_graph_process(s->graph[job_nr], &src_buf, &dst_buf, s->tmp[job_nr], 0, 0, 0, 0);
757  if (ret)
758  return print_zimg_error(ctx);
759 
760  if (td->desc->flags & AV_PIX_FMT_FLAG_ALPHA && td->odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
761  src_buf.plane[0].data = td->in->data[3];
762  src_buf.plane[0].stride = td->in->linesize[3];
763  src_buf.plane[0].mask = -1;
764 
765  dst_buf.plane[0].data = td->out->data[3] + td->out->linesize[3] * out_slice_start;
766  dst_buf.plane[0].stride = td->out->linesize[3];
767  dst_buf.plane[0].mask = -1;
768 
769  if (!s->alpha_graph[job_nr])
770  return AVERROR(EINVAL);
771  ret = zimg_filter_graph_process(s->alpha_graph[job_nr], &src_buf, &dst_buf, s->tmp[job_nr], 0, 0, 0, 0);
772  if (ret)
773  return print_zimg_error(ctx);
774  }
775  return 0;
776 }
777 
779 {
780  AVFilterContext *ctx = link->dst;
781  ZScaleContext *s = ctx->priv;
782  AVFilterLink *outlink = ctx->outputs[0];
784  const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format);
785  char buf[32];
786  int ret = 0;
787  AVFrame *out = NULL;
788  ThreadData td;
789 
790  //we need to use this filter if something is different for an input and output only
791  //otherwise - just copy the input frame to the output
792  if ((link->format != outlink->format) ||
793  (link->w != outlink->w) ||
794  (link->h != outlink->h) ||
795  (link->colorspace != outlink->colorspace) ||
796  (link->color_range != outlink->color_range) ||
797  s->first_time ||
798  (s->src_format.chroma_location != s->dst_format.chroma_location) ||
799  (s->src_format.color_family !=s->dst_format.color_family) ||
800  (s->src_format.color_primaries !=s->dst_format.color_primaries) ||
801  (s->src_format.depth !=s->dst_format.depth) ||
802  (s->src_format.matrix_coefficients !=s->dst_format.matrix_coefficients) ||
803  (s->src_format.field_parity !=s->dst_format.field_parity) ||
804  (s->src_format.pixel_range !=s->dst_format.pixel_range) ||
805  (s->src_format.pixel_type !=s->dst_format.pixel_type) ||
806  (s->src_format.transfer_characteristics !=s->dst_format.transfer_characteristics)
807  ){
808  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
809  if (!out) {
810  ret = AVERROR(ENOMEM);
811  goto fail;
812  }
813 
814  if ((ret = realign_frame(odesc, &out, 0)) < 0)
815  goto fail;
816 
818  out->colorspace = outlink->colorspace;
819  out->color_range = outlink->color_range;
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  link->dst->inputs[0]->colorspace = in->colorspace;
833  link->dst->inputs[0]->color_range = in->color_range;
834 
835  s->nb_threads = av_clip(FFMIN(ff_filter_get_nb_threads(ctx), FFMIN(link->h, outlink->h) / MIN_TILESIZE), 1, MAX_THREADS);
836  slice_params(s, out->height, in->height);
837 
838  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
839  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
840  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
841 
842  format_init(&s->src_format, in, desc, s->colorspace_in,
843  s->primaries_in, s->trc_in, s->range_in, s->chromal_in);
844  format_init(&s->dst_format, out, odesc, s->colorspace,
845  s->primaries, s->trc, s->range, s->chromal);
846  s->first_time = 0;
847 
848  s->params.dither_type = s->dither;
849  s->params.cpu_type = ZIMG_CPU_AUTO_64B;
850  s->params.resample_filter = s->filter;
851  s->params.resample_filter_uv = s->filter;
852  s->params.nominal_peak_luminance = s->nominal_peak_luminance;
853  s->params.allow_approximate_gamma = s->approximate_gamma;
854  s->params.filter_param_a = s->params.filter_param_a_uv = s->param_a;
855  s->params.filter_param_b = s->params.filter_param_b_uv = s->param_b;
856 
857  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
858  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
859  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
860  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
861 
862  s->alpha_params.dither_type = s->dither;
863  s->alpha_params.cpu_type = ZIMG_CPU_AUTO_64B;
864  s->alpha_params.resample_filter = s->filter;
865 
866  s->alpha_src_format.width = in->width;
867  s->alpha_src_format.height = in->height;
868  s->alpha_src_format.depth = desc->comp[0].depth;
869  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;
870  s->alpha_src_format.color_family = ZIMG_COLOR_GREY;
871 
872  s->alpha_dst_format.depth = odesc->comp[0].depth;
873  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;
874  s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
875  }
876 
878  av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
879  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
880  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
881  INT_MAX);
882 
883  td.in = in;
884  td.out = out;
885  td.desc = desc;
886  td.odesc = odesc;
887 
888  memset(s->jobs_ret, 0, s->nb_threads * sizeof(*s->jobs_ret));
889  ret = ff_filter_execute(ctx, filter_slice, &td, s->jobs_ret, s->nb_threads);
890  for (int i = 0; ret >= 0 && i < s->nb_threads; i++)
891  if (s->jobs_ret[i] < 0)
892  ret = s->jobs_ret[i];
893  if (ret < 0) {
894  av_frame_free(&in);
895  av_frame_free(&out);
896  return ret;
897  }
898 
899  s->src_format_tmp = s->src_format;
900  s->dst_format_tmp = s->dst_format;
901  s->params_tmp = s->params;
902  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
903  s->alpha_src_format_tmp = s->alpha_src_format;
904  s->alpha_dst_format_tmp = s->alpha_dst_format;
905  s->alpha_params_tmp = s->alpha_params;
906  }
907 
908  if ((!(desc->flags & AV_PIX_FMT_FLAG_ALPHA)) && (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) ){
909  int x, y;
910  if (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) {
911  for (y = 0; y < out->height; y++) {
912  const ptrdiff_t row = y * out->linesize[3];
913  for (x = 0; x < out->width; x++) {
914  AV_WN32(out->data[3] + x * odesc->comp[3].step + row,
915  av_float2int(1.0f));
916  }
917  }
918  } else if (s->dst_format.depth == 8) {
919  for (y = 0; y < outlink->h; y++)
920  memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w);
921  } else {
922  const uint16_t max = (1 << s->dst_format.depth) - 1;
923  for (y = 0; y < outlink->h; y++) {
924  const ptrdiff_t row = y * out->linesize[3];
925  for (x = 0; x < out->width; x++)
926  AV_WN16(out->data[3] + x * odesc->comp[3].step + row, max);
927  }
928  }
929  }
930  } else {
931  /*no need for any filtering */
932  return ff_filter_frame(outlink, in);
933  }
934 fail:
935  av_frame_free(&in);
936  if (ret) {
937  av_frame_free(&out);
938  return ret;
939  }
940 
941  return ff_filter_frame(outlink, out);
942 }
943 
945 {
946  ZScaleContext *s = ctx->priv;
947 
948  for (int i = 0; i < s->nb_threads; i++) {
949  av_freep(&s->tmp[i]);
950  if (s->graph[i]) {
951  zimg_filter_graph_free(s->graph[i]);
952  s->graph[i] = NULL;
953  }
954  if (s->alpha_graph[i]) {
955  zimg_filter_graph_free(s->alpha_graph[i]);
956  s->alpha_graph[i] = NULL;
957  }
958  }
959 }
960 
961 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
962  char *res, int res_len, int flags)
963 {
964  ZScaleContext *s = ctx->priv;
965  int ret;
966 
967  if ( !strcmp(cmd, "width") || !strcmp(cmd, "w")
968  || !strcmp(cmd, "height") || !strcmp(cmd, "h")) {
969 
970  int old_w = s->w;
971  int old_h = s->h;
972  AVFilterLink *outlink = ctx->outputs[0];
973 
974  av_opt_set(s, cmd, args, 0);
975  if ((ret = config_props(outlink)) < 0) {
976  s->w = old_w;
977  s->h = old_h;
978  }
979  } else
980  ret = AVERROR(ENOSYS);
981 
982  return ret;
983 }
984 
985 #define OFFSET(x) offsetof(ZScaleContext, x)
986 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
987 #define TFLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
988 
989 static const AVOption zscale_options[] = {
990  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
991  { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
992  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
993  { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
994  { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
995  { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
996  { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, .unit = "dither" },
997  { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, .unit = "dither" },
998  { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, .unit = "dither" },
999  { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, .unit = "dither" },
1000  { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, .unit = "dither" },
1001  { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, .unit = "dither" },
1002  { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, .unit = "filter" },
1003  { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, .unit = "filter" },
1004  { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, .unit = "filter" },
1005  { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, .unit = "filter" },
1006  { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, .unit = "filter" },
1007  { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, .unit = "filter" },
1008  { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, .unit = "filter" },
1009  { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, .unit = "filter" },
1010  { "out_range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1011  { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1012  { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1013  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "range" },
1014  { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, .unit = "range" },
1015  { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, .unit = "range" },
1016  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "range" },
1017  { "tv", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, .unit = "range" },
1018  { "pc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, .unit = "range" },
1019  { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "primaries" },
1020  { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "primaries" },
1021  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "primaries" },
1022  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, .unit = "primaries" },
1023  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, .unit = "primaries" },
1024  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, .unit = "primaries" },
1025  { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, .unit = "primaries" },
1026  { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, .unit = "primaries" },
1027  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, .unit = "primaries" },
1028  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, .unit = "primaries" },
1029  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_M}, 0, 0, FLAGS, .unit = "primaries" },
1030  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_BG}, 0, 0, FLAGS, .unit = "primaries" },
1031  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, .unit = "primaries" },
1032  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, .unit = "primaries" },
1033  { "film", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_FILM}, 0, 0, FLAGS, .unit = "primaries" },
1034  { "bt2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, .unit = "primaries" },
1035  { "smpte428", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST428}, 0, 0, FLAGS, .unit = "primaries" },
1036  { "smpte431", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST431_2}, 0, 0, FLAGS, .unit = "primaries" },
1037  { "smpte432", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST432_1}, 0, 0, FLAGS, .unit = "primaries" },
1038  { "jedec-p22", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, .unit = "primaries" },
1039  { "ebu3213", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, .unit = "primaries" },
1040  { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "transfer" },
1041  { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "transfer" },
1042  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "transfer" },
1043  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, .unit = "transfer" },
1044  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, .unit = "transfer" },
1045  { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, .unit = "transfer" },
1046  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, .unit = "transfer" },
1047  { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, .unit = "transfer" },
1048  { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, .unit = "transfer" },
1049  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, .unit = "transfer" },
1050  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_M}, 0, 0, FLAGS, .unit = "transfer" },
1051  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_BG}, 0, 0, FLAGS, .unit = "transfer" },
1052  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, .unit = "transfer" },
1053  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_240M}, 0, 0, FLAGS, .unit = "transfer" },
1054  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, .unit = "transfer" },
1055  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, .unit = "transfer" },
1056  { "log100", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_100}, 0, 0, FLAGS, .unit = "transfer" },
1057  { "log316", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_316}, 0, 0, FLAGS, .unit = "transfer" },
1058  { "bt2020-10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, .unit = "transfer" },
1059  { "bt2020-12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, .unit = "transfer" },
1060  { "smpte2084", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ST2084}, 0, 0, FLAGS, .unit = "transfer" },
1061  { "iec61966-2-4", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_4},0, 0, FLAGS, .unit = "transfer" },
1062  { "iec61966-2-1", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_1},0, 0, FLAGS, .unit = "transfer" },
1063  { "arib-std-b67", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ARIB_B67}, 0, 0, FLAGS, .unit = "transfer" },
1064  { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "matrix" },
1065  { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "matrix" },
1066  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "matrix" },
1067  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, .unit = "matrix" },
1068  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, .unit = "matrix" },
1069  { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, .unit = "matrix" },
1070  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, .unit = "matrix" },
1071  { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, .unit = "matrix" },
1072  { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, .unit = "matrix" },
1073  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, .unit = "matrix" },
1074  { "gbr", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_RGB}, 0, 0, FLAGS, .unit = "matrix" },
1075  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, .unit = "matrix" },
1076  { "fcc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_FCC}, 0, 0, FLAGS, .unit = "matrix" },
1077  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, .unit = "matrix" },
1078  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, .unit = "matrix" },
1079  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_240M}, 0, 0, FLAGS, .unit = "matrix" },
1080  { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, .unit = "matrix" },
1081  { "bt2020nc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, .unit = "matrix" },
1082  { "bt2020c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, .unit = "matrix" },
1083  { "chroma-derived-nc",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL}, 0, 0, FLAGS, .unit = "matrix" },
1084  { "chroma-derived-c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_CL}, 0, 0, FLAGS, .unit = "matrix" },
1085  { "ictcp", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_ICTCP}, 0, 0, FLAGS, .unit = "matrix" },
1086  { "in_range", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1087  { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1088  { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, .unit = "range" },
1089  { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "primaries" },
1090  { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "primaries" },
1091  { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "transfer" },
1092  { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "transfer" },
1093  { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "matrix" },
1094  { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, .unit = "matrix" },
1095  { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, .unit = "chroma" },
1096  { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, .unit = "chroma" },
1097  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, .unit = "chroma" },
1098  { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, .unit = "chroma" },
1099  { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, .unit = "chroma" },
1100  { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, .unit = "chroma" },
1101  { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, .unit = "chroma" },
1102  { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, .unit = "chroma" },
1103  { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, .unit = "chroma" },
1104  { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, .unit = "chroma" },
1105  { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, .unit = "chroma" },
1106  { "npl", "set nominal peak luminance", OFFSET(nominal_peak_luminance), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, 0, DBL_MAX, FLAGS },
1107  { "agamma", "allow approximate gamma", OFFSET(approximate_gamma), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
1108  { "param_a", "parameter A, which is parameter \"b\" for bicubic, "
1109  "and the number of filter taps for lanczos", OFFSET(param_a), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
1110  { "param_b", "parameter B, which is parameter \"c\" for bicubic", OFFSET(param_b), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
1111  { NULL }
1112 };
1113 
1114 AVFILTER_DEFINE_CLASS(zscale);
1115 
1117  {
1118  .name = "default",
1119  .type = AVMEDIA_TYPE_VIDEO,
1120  .filter_frame = filter_frame,
1121  },
1122 };
1123 
1125  {
1126  .name = "default",
1127  .type = AVMEDIA_TYPE_VIDEO,
1128  .config_props = config_props,
1129  },
1130 };
1131 
1133  .name = "zscale",
1134  .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."),
1135  .init = init,
1136  .priv_size = sizeof(ZScaleContext),
1137  .priv_class = &zscale_class,
1138  .uninit = uninit,
1142  .process_command = process_command,
1143  .flags = AVFILTER_FLAG_SLICE_THREADS,
1144 };
formats
formats
Definition: signature.h:48
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:112
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:522
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:501
AVFrame::color_range
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:653
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
av_clip
#define av_clip
Definition: common.h:99
ZScaleContext::jobs_ret
int jobs_ret[MAX_THREADS]
Definition: vf_zscale.c:121
ZScaleContext::range_in
int range_in
Definition: vf_zscale.c:100
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:436
ZScaleContext::colorspace_in
int colorspace_in
Definition: vf_zscale.c:97
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:580
convert_range_from_zimg
static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range)
Definition: vf_zscale.c:522
ThreadData::odesc
const AVPixFmtDescriptor * odesc
Definition: vf_zscale.c:137
out
FILE * out
Definition: movenc.c:55
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:288
ZScaleContext::out_slice_end
int out_slice_end[MAX_THREADS]
Definition: vf_zscale.c:125
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_zscale.c:944
ZScaleContext::params_tmp
zimg_graph_builder_params params_tmp
Definition: vf_zscale.c:132
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1015
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2965
AVCOL_TRC_LINEAR
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:589
AVCHROMA_LOC_BOTTOM
@ AVCHROMA_LOC_BOTTOM
Definition: pixfmt.h:712
ZScaleContext::h_expr
char * h_expr
height expression string
Definition: vf_zscale.c:109
ZScaleContext::filter
int filter
Definition: vf_zscale.c:91
ZIMG_ALIGNMENT
#define ZIMG_ALIGNMENT
Definition: vf_zscale.c:46
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
AV_PIX_FMT_FLAG_FLOAT
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
Definition: pixdesc.h:158
AVFrame::color_primaries
enum AVColorPrimaries color_primaries
Definition: frame.h:655
ZScaleContext::alpha_params_tmp
zimg_graph_builder_params alpha_params_tmp
Definition: vf_zscale.c:132
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:160
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:514
AVFrame::colorspace
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:664
ZScaleContext::chromal
int chromal
Definition: vf_zscale.c:96
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:374
VAR_VSUB
@ VAR_VSUB
Definition: vf_zscale.c:74
pixdesc.h
TFLAGS
#define TFLAGS
Definition: vf_zscale.c:987
var_names
static const char *const var_names[]
Definition: vf_zscale.c:50
AVFrame::width
int width
Definition: frame.h:446
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:521
w
uint8_t w
Definition: llviddspenc.c:38
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:686
ZScaleContext::colorspace
int colorspace
Definition: vf_zscale.c:92
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:516
ZScaleContext::alpha_src_format
zimg_image_format alpha_src_format
Definition: vf_zscale.c:128
AVOption
AVOption.
Definition: opt.h:357
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:583
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:159
data
const char data[16]
Definition: mxf.c:148
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:478
AVCOL_PRI_JEDEC_P22
@ AVCOL_PRI_JEDEC_P22
Definition: pixfmt.h:572
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:578
ThreadData::desc
const AVPixFmtDescriptor * desc
Definition: vf_tonemap.c:175
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:610
float.h
AVCOL_TRC_BT2020_12
@ AVCOL_TRC_BT2020_12
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:596
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
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:989
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:555
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
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:527
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:154
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:517
ZScaleContext::h
int h
Definition: vf_zscale.c:89
AVCOL_SPC_BT2020_CL
@ AVCOL_SPC_BT2020_CL
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:621
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:530
ZScaleContext::primaries
int primaries
Definition: vf_zscale.c:94
ZScaleContext::nb_threads
int nb_threads
Definition: vf_zscale.c:120
ZScaleContext::in_h_chr_pos
int in_h_chr_pos
Definition: vf_zscale.c:113
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
formats.h
ZScaleContext::param_b
double param_b
Definition: vf_zscale.c:106
VAR_OUT_W
@ VAR_OUT_W
Definition: vf_zscale.c:68
primaries
enum AVColorPrimaries primaries
Definition: mediacodec_wrapper.c:2482
AVFrame::chroma_location
enum AVChromaLocation chroma_location
Definition: frame.h:666
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3005
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:615
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:513
convert_primaries
static int convert_primaries(enum AVColorPrimaries color_primaries)
Definition: vf_zscale.c:479
ZScaleContext::out_slice_start
int out_slice_start[MAX_THREADS]
Definition: vf_zscale.c:124
ZScaleContext::dst_format
zimg_image_format dst_format
Definition: vf_zscale.c:127
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:496
AVCOL_TRC_IEC61966_2_1
@ AVCOL_TRC_IEC61966_2_1
IEC 61966-2-1 (sRGB or sYCC)
Definition: pixfmt.h:594
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:127
fail
#define fail()
Definition: checkasm.h:182
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:494
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:523
ZScaleContext::range
int range
Definition: vf_zscale.c:95
VAR_OW
@ VAR_OW
Definition: vf_zscale.c:68
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:476
AVCOL_TRC_GAMMA28
@ AVCOL_TRC_GAMMA28
also ITU-R BT470BG
Definition: pixfmt.h:586
convert_matrix
static int convert_matrix(enum AVColorSpace colorspace)
Definition: vf_zscale.c:409
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_zscale.c:191
ZScaleContext::alpha_params
zimg_graph_builder_params alpha_params
Definition: vf_zscale.c:131
av_opt_set
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:747
AVCOL_TRC_LOG_SQRT
@ AVCOL_TRC_LOG_SQRT
"Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"
Definition: pixfmt.h:591
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:585
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
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:961
VAR_SAR
@ VAR_SAR
Definition: vf_zscale.c:71
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:148
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:555
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:481
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:119
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:490
ZScaleContext::graph
zimg_filter_graph * graph[MAX_THREADS]
Definition: vf_zscale.c:133
ZScaleContext::alpha_dst_format_tmp
zimg_image_format alpha_dst_format_tmp
Definition: vf_zscale.c:130
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:498
ZScaleContext::param_a
double param_a
Definition: vf_zscale.c:105
planes
static const struct @417 planes[]
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:198
AVCHROMA_LOC_TOP
@ AVCHROMA_LOC_TOP
Definition: pixfmt.h:710
AV_PIX_FMT_GBRAP14
#define AV_PIX_FMT_GBRAP14
Definition: pixfmt.h:500
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:499
ZScaleContext
Definition: vf_zscale.c:80
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:595
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:491
ZScaleContext::force_original_aspect_ratio
int force_original_aspect_ratio
Definition: vf_zscale.c:117
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:616
approximate_gamma
static const double approximate_gamma[AVCOL_TRC_NB]
Definition: csp.c:135
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:247
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:679
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:1730
ZScaleContext::src_format_tmp
zimg_image_format src_format_tmp
Definition: vf_zscale.c:129
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:520
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:475
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:489
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:567
ZScaleContext::first_time
int first_time
Definition: vf_zscale.c:116
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:70
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:129
AVCOL_PRI_SMPTE240M
@ AVCOL_PRI_SMPTE240M
identical to above, also called "SMPTE C" even though it uses D65
Definition: pixfmt.h:564
color_range
color_range
Definition: vf_selectivecolor.c:43
ZScaleContext::in_slice_start
double in_slice_start[MAX_THREADS]
Definition: vf_zscale.c:122
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:558
NAN
#define NAN
Definition: mathematics.h:115
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
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:624
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:562
AVCOL_PRI_SMPTE170M
@ AVCOL_PRI_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:563
if
if(ret)
Definition: filter_design.txt:179
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:497
ZScaleContext::params
zimg_graph_builder_params params
Definition: vf_zscale.c:131
print_zimg_error
static int print_zimg_error(AVFilterContext *ctx)
Definition: vf_zscale.c:379
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:709
realign_frame
static int realign_frame(const AVPixFmtDescriptor *desc, AVFrame **frame, int needs_copy)
Definition: vf_zscale.c:663
FLAGS
#define FLAGS
Definition: vf_zscale.c:986
AVCHROMA_LOC_LEFT
@ AVCHROMA_LOC_LEFT
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:707
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:709
AVCOL_TRC_IEC61966_2_4
@ AVCOL_TRC_IEC61966_2_4
IEC 61966-2-4.
Definition: pixfmt.h:592
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: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:534
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:415
AVCOL_PRI_BT709
@ AVCOL_PRI_BT709
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP 177 Annex B
Definition: pixfmt.h:557
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:510
ZScaleContext::out_v_chr_pos
int out_v_chr_pos
Definition: vf_zscale.c:112
double
double
Definition: af_crystalizer.c:131
AVCOL_TRC_BT2020_10
@ AVCOL_TRC_BT2020_10
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:595
AVCOL_SPC_YCGCO
@ AVCOL_SPC_YCGCO
used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16
Definition: pixfmt.h:618
ZScaleContext::dither
int dither
Definition: vf_zscale.c:90
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:479
update_output_color_information
static void update_output_color_information(ZScaleContext *s, AVFrame *frame)
Definition: vf_zscale.c:702
ff_vf_zscale
const AVFilter ff_vf_zscale
Definition: vf_zscale.c:1132
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:493
ff_all_color_spaces
AVFilterFormats * ff_all_color_spaces(void)
Construct an AVFilterFormats representing all possible color spaces.
Definition: formats.c:631
AVPixFmtDescriptor::flags
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:94
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:652
AVCOL_PRI_BT2020
@ AVCOL_PRI_BT2020
ITU-R BT2020.
Definition: pixfmt.h:566
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:597
AVCOL_PRI_SMPTE431
@ AVCOL_PRI_SMPTE431
SMPTE ST 431-2 (2011) / DCI P3.
Definition: pixfmt.h:569
ZScaleContext::in_v_chr_pos
int in_v_chr_pos
Definition: vf_zscale.c:114
eval.h
f
f
Definition: af_crystalizer.c:121
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:803
AVCOL_TRC_SMPTE240M
@ AVCOL_TRC_SMPTE240M
Definition: pixfmt.h:588
AVCOL_PRI_FILM
@ AVCOL_PRI_FILM
colour filters using Illuminant C
Definition: pixfmt.h:565
AV_WN32
#define AV_WN32(p, v)
Definition: intreadwrite.h:374
MAX_THREADS
#define MAX_THREADS
Definition: vf_zscale.c:48
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:999
AVCOL_TRC_LOG
@ AVCOL_TRC_LOG
"Logarithmic transfer characteristic (100:1 range)"
Definition: pixfmt.h:590
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:508
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:483
size
int size
Definition: twinvq_data.h:10344
ZScaleContext::primaries_in
int primaries_in
Definition: vf_zscale.c:99
ZScaleContext::approximate_gamma
int approximate_gamma
Definition: vf_zscale.c:104
ZScaleContext::alpha_dst_format
zimg_image_format alpha_dst_format
Definition: vf_zscale.c:128
VAR_OHSUB
@ VAR_OHSUB
Definition: vf_zscale.c:75
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:485
filter_slice
static int filter_slice(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
Definition: vf_zscale.c:714
AVCHROMA_LOC_UNSPECIFIED
@ AVCHROMA_LOC_UNSPECIFIED
Definition: pixfmt.h:706
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:461
range
enum AVColorRange range
Definition: mediacodec_wrapper.c:2464
VAR_IN_W
@ VAR_IN_W
Definition: vf_zscale.c:66
avfilter_vf_zscale_outputs
static const AVFilterPad avfilter_vf_zscale_outputs[]
Definition: vf_zscale.c:1124
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:647
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:518
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:77
AVCOL_SPC_CHROMA_DERIVED_NCL
@ AVCOL_SPC_CHROMA_DERIVED_NCL
Chromaticity-derived non-constant luminance system.
Definition: pixfmt.h:623
VAR_HSUB
@ VAR_HSUB
Definition: vf_zscale.c:73
AVCOL_TRC_BT709
@ AVCOL_TRC_BT709
also ITU-R BT1361
Definition: pixfmt.h:582
internal.h
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:705
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:617
ZScaleContext::in_slice_end
double in_slice_end[MAX_THREADS]
Definition: vf_zscale.c:123
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:620
filter_frame
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_zscale.c:778
transfer
enum AVColorTransferCharacteristic transfer
Definition: mediacodec_wrapper.c:2492
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:495
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:609
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:827
ThreadData
Used for passing data between threads.
Definition: dsddec.c:71
VAR_IW
@ VAR_IW
Definition: vf_zscale.c:66
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
ZScaleContext::w
int w
New dimensions.
Definition: vf_zscale.c:89
ZScaleContext::trc
int trc
Definition: vf_zscale.c:93
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
VAR_OH
@ VAR_OH
Definition: vf_zscale.c:69
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:612
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:101
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:669
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:264
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:477
AVFilter
Filter definition.
Definition: avfilter.h:166
VAR_IH
@ VAR_IH
Definition: vf_zscale.c:67
AVCOL_PRI_BT470M
@ AVCOL_PRI_BT470M
also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:560
ret
ret
Definition: filter_design.txt:187
ZScaleContext::trc_in
int trc_in
Definition: vf_zscale.c:98
ZScaleContext::size_str
char * size_str
Definition: vf_zscale.c:102
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:515
convert_chroma_location
static int convert_chroma_location(enum AVChromaLocation chroma_location)
Definition: vf_zscale.c:389
AVFrame::sample_aspect_ratio
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:481
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:482
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:487
AVFrame::height
int height
Definition: frame.h:446
AVCOL_TRC_ARIB_STD_B67
@ AVCOL_TRC_ARIB_STD_B67
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:601
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_zscale.c:141
AVCHROMA_LOC_CENTER
@ AVCHROMA_LOC_CENTER
MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0.
Definition: pixfmt.h:708
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:614
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:519
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:245
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:509
VAR_IN_H
@ VAR_IN_H
Definition: vf_zscale.c:67
VAR_OVSUB
@ VAR_OVSUB
Definition: vf_zscale.c:76
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:587
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:985
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:133
AVFilterContext
An instance of a filter.
Definition: avfilter.h:407
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:117
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:77
MIN_TILESIZE
#define MIN_TILESIZE
Definition: vf_zscale.c:47
mem.h
convert_trc
static int convert_trc(enum AVColorTransferCharacteristic color_trc)
Definition: vf_zscale.c:442
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:570
ZScaleContext::alpha_src_format_tmp
zimg_image_format alpha_src_format_tmp
Definition: vf_zscale.c:130
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:261
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
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:80
VAR_DAR
@ VAR_DAR
Definition: vf_zscale.c:72
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:474
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:103
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:488
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:249
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:134
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:611
AVColorRange
AVColorRange
Visual content value range.
Definition: pixfmt.h:651
int
int
Definition: ffmpeg_filter.c:424
AVCOL_SPC_ICTCP
@ AVCOL_SPC_ICTCP
ITU-R BT.2100-0, ICtCp.
Definition: pixfmt.h:625
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:254
snprintf
#define snprintf
Definition: snprintf.h:34
VAR_OUT_H
@ VAR_OUT_H
Definition: vf_zscale.c:69
ZScaleContext::out_h_chr_pos
int out_h_chr_pos
Definition: vf_zscale.c:111
AVCHROMA_LOC_BOTTOMLEFT
@ AVCHROMA_LOC_BOTTOMLEFT
Definition: pixfmt.h:711
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:486
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:2885
ZScaleContext::w_expr
char * w_expr
width expression string
Definition: vf_zscale.c:108
avfilter_vf_zscale_inputs
static const AVFilterPad avfilter_vf_zscale_inputs[]
Definition: vf_zscale.c:1116
AV_WN16
#define AV_WN16(p, v)
Definition: intreadwrite.h:370
dither
static const uint8_t dither[8][8]
Definition: vf_fspp.c:61