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vf_zscale.c
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1 /*
2  * Copyright (c) 2015 Paul B Mahol
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * zscale video filter using z.lib library
24  */
25 
26 #include <stdio.h>
27 #include <string.h>
28 
29 #include <zimg.h>
30 
31 #include "avfilter.h"
32 #include "formats.h"
33 #include "internal.h"
34 #include "video.h"
35 #include "libavutil/avstring.h"
36 #include "libavutil/eval.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/imgutils.h"
43 #include "libavutil/avassert.h"
44 
45 static const char *const var_names[] = {
46  "in_w", "iw",
47  "in_h", "ih",
48  "out_w", "ow",
49  "out_h", "oh",
50  "a",
51  "sar",
52  "dar",
53  "hsub",
54  "vsub",
55  "ohsub",
56  "ovsub",
57  NULL
58 };
59 
60 enum var_name {
73 };
74 
75 typedef struct ZScaleContext {
76  const AVClass *class;
77 
78  /**
79  * New dimensions. Special values are:
80  * 0 = original width/height
81  * -1 = keep original aspect
82  * -N = try to keep aspect but make sure it is divisible by N
83  */
84  int w, h;
85  int dither;
86  int filter;
88  int trc;
89  int primaries;
90  int range;
91  int chromal;
93  int trc_in;
95  int range_in;
97  char *size_str;
98 
99  char *w_expr; ///< width expression string
100  char *h_expr; ///< height expression string
101 
106 
108 
109  void *tmp;
110  size_t tmp_size;
111 
112  zimg_image_format src_format, dst_format;
113  zimg_image_format alpha_src_format, alpha_dst_format;
114  zimg_graph_builder_params alpha_params, params;
115  zimg_filter_graph *alpha_graph, *graph;
116 
117  enum AVColorSpace in_colorspace, out_colorspace;
119  enum AVColorPrimaries in_primaries, out_primaries;
120  enum AVColorRange in_range, out_range;
121  enum AVChromaLocation in_chromal, out_chromal;
122 } ZScaleContext;
123 
125 {
126  ZScaleContext *s = ctx->priv;
127  int ret;
128 
129  if (s->size_str && (s->w_expr || s->h_expr)) {
130  av_log(ctx, AV_LOG_ERROR,
131  "Size and width/height expressions cannot be set at the same time.\n");
132  return AVERROR(EINVAL);
133  }
134 
135  if (s->w_expr && !s->h_expr)
136  FFSWAP(char *, s->w_expr, s->size_str);
137 
138  if (s->size_str) {
139  char buf[32];
140  if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) {
141  av_log(ctx, AV_LOG_ERROR,
142  "Invalid size '%s'\n", s->size_str);
143  return ret;
144  }
145  snprintf(buf, sizeof(buf)-1, "%d", s->w);
146  av_opt_set(s, "w", buf, 0);
147  snprintf(buf, sizeof(buf)-1, "%d", s->h);
148  av_opt_set(s, "h", buf, 0);
149  }
150  if (!s->w_expr)
151  av_opt_set(s, "w", "iw", 0);
152  if (!s->h_expr)
153  av_opt_set(s, "h", "ih", 0);
154 
155  return 0;
156 }
157 
159 {
160  static const enum AVPixelFormat pixel_fmts[] = {
180  };
181  int ret;
182 
183  ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->out_formats);
184  if (ret < 0)
185  return ret;
186  return ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->in_formats);
187 }
188 
189 static int config_props(AVFilterLink *outlink)
190 {
191  AVFilterContext *ctx = outlink->src;
192  AVFilterLink *inlink = outlink->src->inputs[0];
193  ZScaleContext *s = ctx->priv;
195  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format);
196  int64_t w, h;
197  double var_values[VARS_NB], res;
198  char *expr;
199  int ret;
200  int factor_w, factor_h;
201 
202  var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
203  var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
204  var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
205  var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
206  var_values[VAR_A] = (double) inlink->w / inlink->h;
207  var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
208  (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
209  var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
210  var_values[VAR_HSUB] = 1 << desc->log2_chroma_w;
211  var_values[VAR_VSUB] = 1 << desc->log2_chroma_h;
212  var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w;
213  var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h;
214 
215  /* evaluate width and height */
216  av_expr_parse_and_eval(&res, (expr = s->w_expr),
217  var_names, var_values,
218  NULL, NULL, NULL, NULL, NULL, 0, ctx);
219  s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;
220  if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
221  var_names, var_values,
222  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
223  goto fail;
224  s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;
225  /* evaluate again the width, as it may depend on the output height */
226  if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
227  var_names, var_values,
228  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
229  goto fail;
230  s->w = res;
231 
232  w = s->w;
233  h = s->h;
234 
235  /* Check if it is requested that the result has to be divisible by a some
236  * factor (w or h = -n with n being the factor). */
237  factor_w = 1;
238  factor_h = 1;
239  if (w < -1) {
240  factor_w = -w;
241  }
242  if (h < -1) {
243  factor_h = -h;
244  }
245 
246  if (w < 0 && h < 0)
247  s->w = s->h = 0;
248 
249  if (!(w = s->w))
250  w = inlink->w;
251  if (!(h = s->h))
252  h = inlink->h;
253 
254  /* Make sure that the result is divisible by the factor we determined
255  * earlier. If no factor was set, it is nothing will happen as the default
256  * factor is 1 */
257  if (w < 0)
258  w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w;
259  if (h < 0)
260  h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h;
261 
262  /* Note that force_original_aspect_ratio may overwrite the previous set
263  * dimensions so that it is not divisible by the set factors anymore. */
265  int tmp_w = av_rescale(h, inlink->w, inlink->h);
266  int tmp_h = av_rescale(w, inlink->h, inlink->w);
267 
268  if (s->force_original_aspect_ratio == 1) {
269  w = FFMIN(tmp_w, w);
270  h = FFMIN(tmp_h, h);
271  } else {
272  w = FFMAX(tmp_w, w);
273  h = FFMAX(tmp_h, h);
274  }
275  }
276 
277  if (w > INT_MAX || h > INT_MAX ||
278  (h * inlink->w) > INT_MAX ||
279  (w * inlink->h) > INT_MAX)
280  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
281 
282  outlink->w = w;
283  outlink->h = h;
284 
285  if (inlink->w == outlink->w &&
286  inlink->h == outlink->h &&
287  inlink->format == outlink->format)
288  ;
289  else {
290  }
291 
292  if (inlink->sample_aspect_ratio.num){
293  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
294  } else
295  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
296 
297  av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d fmt:%s sar:%d/%d -> w:%d h:%d fmt:%s sar:%d/%d\n",
298  inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
300  outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format),
301  outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den);
302  return 0;
303 
304 fail:
305  av_log(ctx, AV_LOG_ERROR,
306  "Error when evaluating the expression '%s'.\n"
307  "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n",
308  expr, s->w_expr, s->h_expr);
309  return ret;
310 }
311 
313 {
314  char err_msg[1024];
315  int err_code = zimg_get_last_error(err_msg, sizeof(err_msg));
316 
317  av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg);
318 
319  return err_code;
320 }
321 
322 static int convert_chroma_location(enum AVChromaLocation chroma_location)
323 {
324  switch (chroma_location) {
326  case AVCHROMA_LOC_LEFT:
327  return ZIMG_CHROMA_LEFT;
328  case AVCHROMA_LOC_CENTER:
329  return ZIMG_CHROMA_CENTER;
331  return ZIMG_CHROMA_TOP_LEFT;
332  case AVCHROMA_LOC_TOP:
333  return ZIMG_CHROMA_TOP;
335  return ZIMG_CHROMA_BOTTOM_LEFT;
336  case AVCHROMA_LOC_BOTTOM:
337  return ZIMG_CHROMA_BOTTOM;
338  }
339  return ZIMG_CHROMA_LEFT;
340 }
341 
342 static int convert_matrix(enum AVColorSpace colorspace)
343 {
344  switch (colorspace) {
345  case AVCOL_SPC_RGB:
346  return ZIMG_MATRIX_RGB;
347  case AVCOL_SPC_BT709:
348  return ZIMG_MATRIX_709;
350  return ZIMG_MATRIX_UNSPECIFIED;
351  case AVCOL_SPC_BT470BG:
352  return ZIMG_MATRIX_470BG;
353  case AVCOL_SPC_SMPTE170M:
354  return ZIMG_MATRIX_170M;
355  case AVCOL_SPC_YCGCO:
356  return ZIMG_MATRIX_YCGCO;
358  return ZIMG_MATRIX_2020_NCL;
359  case AVCOL_SPC_BT2020_CL:
360  return ZIMG_MATRIX_2020_CL;
361  }
362  return ZIMG_MATRIX_UNSPECIFIED;
363 }
364 
365 static int convert_trc(enum AVColorTransferCharacteristic color_trc)
366 {
367  switch (color_trc) {
369  return ZIMG_TRANSFER_UNSPECIFIED;
370  case AVCOL_TRC_BT709:
371  return ZIMG_TRANSFER_709;
372  case AVCOL_TRC_SMPTE170M:
373  return ZIMG_TRANSFER_601;
374  case AVCOL_TRC_LINEAR:
375  return ZIMG_TRANSFER_LINEAR;
376  case AVCOL_TRC_BT2020_10:
377  return ZIMG_TRANSFER_2020_10;
378  case AVCOL_TRC_BT2020_12:
379  return ZIMG_TRANSFER_2020_12;
380  }
381  return ZIMG_TRANSFER_UNSPECIFIED;
382 }
383 
385 {
386  switch (color_primaries) {
388  return ZIMG_PRIMARIES_UNSPECIFIED;
389  case AVCOL_PRI_BT709:
390  return ZIMG_PRIMARIES_709;
391  case AVCOL_PRI_SMPTE170M:
392  return ZIMG_PRIMARIES_170M;
393  case AVCOL_PRI_SMPTE240M:
394  return ZIMG_PRIMARIES_240M;
395  case AVCOL_PRI_BT2020:
396  return ZIMG_PRIMARIES_2020;
397  }
398  return ZIMG_PRIMARIES_UNSPECIFIED;
399 }
400 
402 {
403  switch (color_range) {
405  case AVCOL_RANGE_MPEG:
406  return ZIMG_RANGE_LIMITED;
407  case AVCOL_RANGE_JPEG:
408  return ZIMG_RANGE_FULL;
409  }
410  return ZIMG_RANGE_LIMITED;
411 }
412 
413 static int filter_frame(AVFilterLink *link, AVFrame *in)
414 {
415  ZScaleContext *s = link->dst->priv;
416  AVFilterLink *outlink = link->dst->outputs[0];
418  const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format);
419  zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
420  zimg_image_buffer dst_buf = { ZIMG_API_VERSION };
421  char buf[32];
422  size_t tmp_size;
423  int ret = 0, plane;
424  AVFrame *out;
425 
426  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
427  if (!out) {
428  av_frame_free(&in);
429  return AVERROR(ENOMEM);
430  }
431 
432  av_frame_copy_props(out, in);
433  out->width = outlink->w;
434  out->height = outlink->h;
435 
436  if( in->width != link->w
437  || in->height != link->h
438  || in->format != link->format
439  || s->in_colorspace != in->colorspace
440  || s->in_trc != in->color_trc
441  || s->in_primaries != in->color_primaries
442  || s->in_range != in->color_range
443  || s->out_colorspace != out->colorspace
444  || s->out_trc != out->color_trc
445  || s->out_primaries != out->color_primaries
446  || s->out_range != out->color_range
447  || s->in_chromal != in->chroma_location
448  || s->out_chromal != out->chroma_location) {
449  snprintf(buf, sizeof(buf)-1, "%d", outlink->w);
450  av_opt_set(s, "w", buf, 0);
451  snprintf(buf, sizeof(buf)-1, "%d", outlink->h);
452  av_opt_set(s, "h", buf, 0);
453 
454  link->dst->inputs[0]->format = in->format;
455  link->dst->inputs[0]->w = in->width;
456  link->dst->inputs[0]->h = in->height;
457 
458  if ((ret = config_props(outlink)) < 0) {
459  av_frame_free(&in);
460  av_frame_free(&out);
461  return ret;
462  }
463 
464  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
465  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
466  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
467 
468  s->params.dither_type = s->dither;
469  s->params.cpu_type = ZIMG_CPU_AUTO;
470  s->params.resample_filter = s->filter;
471  s->params.resample_filter_uv = s->filter;
472 
473  s->src_format.width = in->width;
474  s->src_format.height = in->height;
475  s->src_format.subsample_w = desc->log2_chroma_w;
476  s->src_format.subsample_h = desc->log2_chroma_h;
477  s->src_format.depth = desc->comp[0].depth;
478  s->src_format.pixel_type = desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
479  s->src_format.color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
480  s->src_format.matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : s->colorspace_in == -1 ? convert_matrix(in->colorspace) : s->colorspace_in;
481  s->src_format.transfer_characteristics = s->trc_in == - 1 ? convert_trc(in->color_trc) : s->trc_in;
482  s->src_format.color_primaries = s->primaries_in == -1 ? convert_primaries(in->color_primaries) : s->primaries_in;
483  s->src_format.pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : s->range_in == -1 ? convert_range(in->color_range) : s->range_in;
484  s->src_format.chroma_location = s->chromal_in == -1 ? convert_chroma_location(in->chroma_location) : s->chromal_in;
485 
486  s->dst_format.width = out->width;
487  s->dst_format.height = out->height;
488  s->dst_format.subsample_w = odesc->log2_chroma_w;
489  s->dst_format.subsample_h = odesc->log2_chroma_h;
490  s->dst_format.depth = odesc->comp[0].depth;
491  s->dst_format.pixel_type = odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
492  s->dst_format.color_family = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
493  s->dst_format.matrix_coefficients = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : s->colorspace == -1 ? convert_matrix(out->colorspace) : s->colorspace;
494  s->dst_format.transfer_characteristics = s->trc == -1 ? convert_trc(out->color_trc) : s->trc;
495  s->dst_format.color_primaries = s->primaries == -1 ? convert_primaries(out->color_primaries) : s->primaries;
496  s->dst_format.pixel_range = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : s->range == -1 ? convert_range(out->color_range) : s->range;
497  s->dst_format.chroma_location = s->chromal == -1 ? convert_chroma_location(out->chroma_location) : s->chromal;
498 
499  if (s->colorspace != -1)
500  out->colorspace = (int)s->dst_format.matrix_coefficients;
501 
502  if (s->primaries != -1)
503  out->color_primaries = (int)s->dst_format.color_primaries;
504 
505  if (s->range != -1)
506  out->color_range = (int)s->dst_format.pixel_range + 1;
507 
508  if (s->trc != -1)
509  out->color_trc = (int)s->dst_format.transfer_characteristics;
510 
511  if (s->chromal != -1)
512  out->chroma_location = (int)s->dst_format.chroma_location - 1;
513 
514  zimg_filter_graph_free(s->graph);
515  s->graph = zimg_filter_graph_build(&s->src_format, &s->dst_format, &s->params);
516  if (!s->graph) {
517  ret = print_zimg_error(link->dst);
518  goto fail;
519  }
520 
521  if ((ret = zimg_filter_graph_get_tmp_size(s->graph, &tmp_size))) {
522  ret = print_zimg_error(link->dst);
523  goto fail;
524  }
525 
526  if (tmp_size > s->tmp_size) {
527  av_freep(&s->tmp);
528  s->tmp = av_malloc(tmp_size);
529  if (!s->tmp) {
530  ret = AVERROR(ENOMEM);
531  goto fail;
532  }
533  s->tmp_size = tmp_size;
534  }
535 
536  s->in_colorspace = in->colorspace;
537  s->in_trc = in->color_trc;
538  s->in_primaries = in->color_primaries;
539  s->in_range = in->color_range;
540  s->out_colorspace = out->colorspace;
541  s->out_trc = out->color_trc;
542  s->out_primaries = out->color_primaries;
543  s->out_range = out->color_range;
544 
545  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
546  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
547  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
548  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
549 
550  s->alpha_params.dither_type = s->dither;
551  s->alpha_params.cpu_type = ZIMG_CPU_AUTO;
552  s->alpha_params.resample_filter = s->filter;
553 
554  s->alpha_src_format.width = in->width;
555  s->alpha_src_format.height = in->height;
556  s->alpha_src_format.depth = desc->comp[0].depth;
557  s->alpha_src_format.pixel_type = desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
558  s->alpha_src_format.color_family = ZIMG_COLOR_GREY;
559 
560  s->alpha_dst_format.width = out->width;
561  s->alpha_dst_format.height = out->height;
562  s->alpha_dst_format.depth = odesc->comp[0].depth;
563  s->alpha_dst_format.pixel_type = odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
564  s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
565 
566  zimg_filter_graph_free(s->alpha_graph);
567  s->alpha_graph = zimg_filter_graph_build(&s->alpha_src_format, &s->alpha_dst_format, &s->alpha_params);
568  if (!s->alpha_graph) {
569  ret = print_zimg_error(link->dst);
570  goto fail;
571  }
572  }
573  }
574 
575  if (s->colorspace != -1)
576  out->colorspace = (int)s->dst_format.matrix_coefficients;
577 
578  if (s->primaries != -1)
579  out->color_primaries = (int)s->dst_format.color_primaries;
580 
581  if (s->range != -1)
582  out->color_range = (int)s->dst_format.pixel_range;
583 
584  if (s->trc != -1)
585  out->color_trc = (int)s->dst_format.transfer_characteristics;
586 
588  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
589  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
590  INT_MAX);
591 
592  for (plane = 0; plane < 3; plane++) {
593  int p = desc->comp[plane].plane;
594  src_buf.plane[plane].data = in->data[p];
595  src_buf.plane[plane].stride = in->linesize[p];
596  src_buf.plane[plane].mask = -1;
597 
598  p = odesc->comp[plane].plane;
599  dst_buf.plane[plane].data = out->data[p];
600  dst_buf.plane[plane].stride = out->linesize[p];
601  dst_buf.plane[plane].mask = -1;
602  }
603 
604  ret = zimg_filter_graph_process(s->graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0);
605  if (ret) {
606  print_zimg_error(link->dst);
607  goto fail;
608  }
609 
610  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
611  src_buf.plane[0].data = in->data[3];
612  src_buf.plane[0].stride = in->linesize[3];
613  src_buf.plane[0].mask = -1;
614 
615  dst_buf.plane[0].data = out->data[3];
616  dst_buf.plane[0].stride = out->linesize[3];
617  dst_buf.plane[0].mask = -1;
618 
619  ret = zimg_filter_graph_process(s->alpha_graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0);
620  if (ret) {
621  print_zimg_error(link->dst);
622  goto fail;
623  }
624  } else if (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
625  int y;
626 
627  for (y = 0; y < outlink->h; y++)
628  memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w);
629  }
630 
631 fail:
632  av_frame_free(&in);
633  if (ret) {
634  av_frame_free(&out);
635  return ret;
636  }
637 
638  return ff_filter_frame(outlink, out);
639 }
640 
642 {
643  ZScaleContext *s = ctx->priv;
644 
645  zimg_filter_graph_free(s->graph);
646  av_freep(&s->tmp);
647  s->tmp_size = 0;
648 }
649 
650 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
651  char *res, int res_len, int flags)
652 {
653  ZScaleContext *s = ctx->priv;
654  int ret;
655 
656  if ( !strcmp(cmd, "width") || !strcmp(cmd, "w")
657  || !strcmp(cmd, "height") || !strcmp(cmd, "h")) {
658 
659  int old_w = s->w;
660  int old_h = s->h;
661  AVFilterLink *outlink = ctx->outputs[0];
662 
663  av_opt_set(s, cmd, args, 0);
664  if ((ret = config_props(outlink)) < 0) {
665  s->w = old_w;
666  s->h = old_h;
667  }
668  } else
669  ret = AVERROR(ENOSYS);
670 
671  return ret;
672 }
673 
674 #define OFFSET(x) offsetof(ZScaleContext, x)
675 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
676 
677 static const AVOption zscale_options[] = {
678  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
679  { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
680  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
681  { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
682  { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
683  { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
684  { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
685  { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
686  { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, "dither" },
687  { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, "dither" },
688  { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, "dither" },
689  { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, "dither" },
690  { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
691  { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
692  { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, "filter" },
693  { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, "filter" },
694  { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, "filter" },
695  { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, "filter" },
696  { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, "filter" },
697  { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, "filter" },
698  { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
699  { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
700  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
701  { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
702  { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
703  { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_2020, FLAGS, "primaries" },
704  { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_2020, FLAGS, "primaries" },
705  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "primaries" },
706  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
707  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
708  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
709  { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
710  { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
711  { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_2020_12, FLAGS, "transfer" },
712  { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_2020_12, FLAGS, "transfer" },
713  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "transfer" },
714  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
715  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
716  { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
717  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
718  { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
719  { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
720  { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
721  { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
722  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "matrix" },
723  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
724  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
725  { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
726  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
727  { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, "matrix" },
728  { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
729  { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
730  { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
731  { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
732  { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_2020, FLAGS, "primaries" },
733  { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_2020, FLAGS, "primaries" },
734  { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_2020_12, FLAGS, "transfer" },
735  { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_2020_12, FLAGS, "transfer" },
736  { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
737  { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
738  { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
739  { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
740  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "chroma" },
741  { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, "chroma" },
742  { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, "chroma" },
743  { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, "chroma" },
744  { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, "chroma" },
745  { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, "chroma" },
746  { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, "chroma" },
747  { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
748  { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
749  { NULL }
750 };
751 
752 static const AVClass zscale_class = {
753  .class_name = "zscale",
754  .item_name = av_default_item_name,
755  .option = zscale_options,
756  .version = LIBAVUTIL_VERSION_INT,
757  .category = AV_CLASS_CATEGORY_FILTER,
758 };
759 
761  {
762  .name = "default",
763  .type = AVMEDIA_TYPE_VIDEO,
764  .filter_frame = filter_frame,
765  },
766  { NULL }
767 };
768 
770  {
771  .name = "default",
772  .type = AVMEDIA_TYPE_VIDEO,
773  .config_props = config_props,
774  },
775  { NULL }
776 };
777 
779  .name = "zscale",
780  .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."),
781  .init_dict = init_dict,
782  .query_formats = query_formats,
783  .priv_size = sizeof(ZScaleContext),
784  .priv_class = &zscale_class,
785  .uninit = uninit,
786  .inputs = avfilter_vf_zscale_inputs,
787  .outputs = avfilter_vf_zscale_outputs,
789 };
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:426
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
Definition: pixfmt.h:438
int plane
Definition: avisynth_c.h:422
static const AVFilterPad avfilter_vf_zscale_outputs[]
Definition: vf_zscale.c:769
int plane
Which of the 4 planes contains the component.
Definition: pixdesc.h:35
#define NULL
Definition: coverity.c:32
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:378
const char * s
Definition: avisynth_c.h:768
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:372
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2266
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:481
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
int out_v_chr_pos
Definition: vf_zscale.c:103
AVOption.
Definition: opt.h:245
"Linear transfer characteristics"
Definition: pixfmt.h:419
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:374
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:143
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:351
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:375
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
misc image utilities
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:101
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601 ...
Definition: pixfmt.h:442
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
int num
Numerator.
Definition: rational.h:59
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:357
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:443
zimg_image_format dst_format
Definition: vf_zscale.c:112
color_range
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:345
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:76
zimg_graph_builder_params alpha_params
Definition: vf_zscale.c:114
enum AVColorSpace in_colorspace out_colorspace
Definition: vf_zscale.c:117
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)
Definition: pixfmt.h:437
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:410
char * w_expr
width expression string
Definition: vf_zscale.c:99
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
const char * name
Pad name.
Definition: internal.h:59
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
zimg_filter_graph * alpha_graph
Definition: vf_zscale.c:115
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:315
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1189
static int print_zimg_error(AVFilterContext *ctx)
Definition: vf_zscale.c:312
enum AVColorPrimaries in_primaries out_primaries
Definition: vf_zscale.c:119
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:102
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
zimg_image_format alpha_dst_format
Definition: vf_zscale.c:113
#define av_cold
Definition: attributes.h:82
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:173
#define av_malloc(s)
AVOptions.
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:436
static void filter(int16_t *output, ptrdiff_t out_stride, int16_t *low, ptrdiff_t low_stride, int16_t *high, ptrdiff_t high_stride, int len, uint8_t clip)
Definition: cfhd.c:80
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:371
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:356
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
int in_h_chr_pos
Definition: vf_zscale.c:104
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
static const AVFilterPad avfilter_vf_zscale_inputs[]
Definition: vf_zscale.c:760
static int convert_range(enum AVColorRange color_range)
Definition: vf_zscale.c:401
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:354
AVColorRange
MPEG vs JPEG YUV range.
Definition: pixfmt.h:457
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:346
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:377
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:389
#define av_log(a,...)
static int convert_matrix(enum AVColorSpace colorspace)
Definition: vf_zscale.c:342
static int query_formats(AVFilterContext *ctx)
Definition: vf_zscale.c:158
A filter pad used for either input or output.
Definition: internal.h:53
enum AVColorRange in_range out_range
Definition: vf_zscale.c:120
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:723
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:188
int width
width and height of the video frame
Definition: frame.h:236
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts)
Definition: vf_zscale.c:124
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:148
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_zscale.c:413
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:158
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
void * tmp
Definition: vf_zscale.c:109
static const uint8_t dither[8][8]
Definition: vf_fspp.c:57
void * priv
private data for use by the filter
Definition: avfilter.h:322
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:422
#define OFFSET(x)
Definition: vf_zscale.c:674
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:379
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:435
zimg_image_format alpha_src_format
Definition: vf_zscale.c:113
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
Definition: pixfmt.h:391
simple assert() macros that are a bit more flexible than ISO C assert().
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:344
#define FFMAX(a, b)
Definition: common.h:94
#define fail()
Definition: checkasm.h:83
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:363
int w
New dimensions.
Definition: vf_zscale.c:84
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
var_name
Definition: aeval.c:46
common internal API header
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:339
AVDictionary * opts
Definition: movenc.c:50
#define AVCOL_SPC_YCGCO
Definition: pixfmt.h:451
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:360
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition: mathematics.c:129
#define FFMIN(a, b)
Definition: common.h:96
char * size_str
Definition: vf_zscale.c:97
zimg_filter_graph * graph
Definition: vf_zscale.c:115
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:440
static void uninit(AVFilterContext *ctx)
Definition: vf_zscale.c:641
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:446
ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2.
Definition: pixfmt.h:483
static const struct ColorPrimaries color_primaries[AVCOL_PRI_NB]
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:376
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:340
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:359
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:460
int colorspace_in
Definition: vf_zscale.c:92
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:352
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:248
also ITU-R BT1361
Definition: pixfmt.h:412
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
Definition: pixfmt.h:417
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:349
zimg_graph_builder_params params
Definition: vf_zscale.c:114
int chromal_in
Definition: vf_zscale.c:96
functionally identical to above
Definition: pixfmt.h:398
enum AVChromaLocation in_chromal out_chromal
Definition: vf_zscale.c:121
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:215
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:189
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
static int convert_trc(enum AVColorTransferCharacteristic color_trc)
Definition: vf_zscale.c:365
static const char *const var_names[]
Definition: vf_zscale.c:45
char * h_expr
height expression string
Definition: vf_zscale.c:100
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:263
zimg_image_format src_format
Definition: vf_zscale.c:112
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
int out_h_chr_pos
Definition: vf_zscale.c:102
void * buf
Definition: avisynth_c.h:690
int primaries_in
Definition: vf_zscale.c:94
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:341
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_zscale.c:650
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
int colorspace
Definition: vf_zscale.c:87
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
static int convert_primaries(enum AVColorPrimaries color_primaries)
Definition: vf_zscale.c:384
Rational number (pair of numerator and denominator).
Definition: rational.h:58
const char * name
Filter name.
Definition: avfilter.h:148
static int convert_chroma_location(enum AVChromaLocation chroma_location)
Definition: vf_zscale.c:322
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:338
enum AVChromaLocation chroma_location
Definition: frame.h:437
#define snprintf
Definition: snprintf.h:34
misc parsing utilities
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:319
static const AVClass zscale_class
Definition: vf_zscale.c:752
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:350
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:358
size_t tmp_size
Definition: vf_zscale.c:110
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:342
static int flags
Definition: cpu.c:47
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:348
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:198
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:459
static int config_props(AVFilterLink *outlink)
Definition: vf_zscale.c:189
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:447
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
if(ret< 0)
Definition: vf_mcdeint.c:282
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:229
AVFilter ff_vf_zscale
Definition: vf_zscale.c:778
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:373
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
static const AVOption zscale_options[]
Definition: vf_zscale.c:677
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
int den
Denominator.
Definition: rational.h:60
int force_original_aspect_ratio
Definition: vf_zscale.c:107
#define NAN
Definition: math.h:28
#define FLAGS
Definition: vf_zscale.c:675
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:272
int in_v_chr_pos
Definition: vf_zscale.c:105
enum AVColorPrimaries color_primaries
Definition: frame.h:424
An instance of a filter.
Definition: avfilter.h:307
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:425
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:397
ITU-R BT2020.
Definition: pixfmt.h:400
int height
Definition: frame.h:236
FILE * out
Definition: movenc.c:54
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:479
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:426
MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0.
Definition: pixfmt.h:482
#define FFSWAP(type, a, b)
Definition: common.h:99
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2182
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:431
enum AVColorTransferCharacteristic in_trc out_trc
Definition: vf_zscale.c:118
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:353
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:589
simple arithmetic expression evaluator