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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 <float.h>
27 #include <stdio.h>
28 #include <string.h>
29 
30 #include <zimg.h>
31 
32 #include "avfilter.h"
33 #include "formats.h"
34 #include "internal.h"
35 #include "video.h"
36 #include "libavutil/avstring.h"
37 #include "libavutil/eval.h"
38 #include "libavutil/internal.h"
39 #include "libavutil/intreadwrite.h"
40 #include "libavutil/mathematics.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/parseutils.h"
43 #include "libavutil/pixdesc.h"
44 #include "libavutil/imgutils.h"
45 #include "libavutil/avassert.h"
46 
47 static const char *const var_names[] = {
48  "in_w", "iw",
49  "in_h", "ih",
50  "out_w", "ow",
51  "out_h", "oh",
52  "a",
53  "sar",
54  "dar",
55  "hsub",
56  "vsub",
57  "ohsub",
58  "ovsub",
59  NULL
60 };
61 
62 enum var_name {
75 };
76 
77 typedef struct ZScaleContext {
78  const AVClass *class;
79 
80  /**
81  * New dimensions. Special values are:
82  * 0 = original width/height
83  * -1 = keep original aspect
84  * -N = try to keep aspect but make sure it is divisible by N
85  */
86  int w, h;
87  int dither;
88  int filter;
90  int trc;
91  int primaries;
92  int range;
93  int chromal;
95  int trc_in;
97  int range_in;
99  char *size_str;
102 
103  char *w_expr; ///< width expression string
104  char *h_expr; ///< height expression string
105 
110 
112 
113  void *tmp;
114  size_t tmp_size;
115 
116  zimg_image_format src_format, dst_format;
117  zimg_image_format alpha_src_format, alpha_dst_format;
118  zimg_graph_builder_params alpha_params, params;
119  zimg_filter_graph *alpha_graph, *graph;
120 
121  enum AVColorSpace in_colorspace, out_colorspace;
123  enum AVColorPrimaries in_primaries, out_primaries;
124  enum AVColorRange in_range, out_range;
125  enum AVChromaLocation in_chromal, out_chromal;
126 } ZScaleContext;
127 
129 {
130  ZScaleContext *s = ctx->priv;
131  int ret;
132 
133  if (s->size_str && (s->w_expr || s->h_expr)) {
134  av_log(ctx, AV_LOG_ERROR,
135  "Size and width/height expressions cannot be set at the same time.\n");
136  return AVERROR(EINVAL);
137  }
138 
139  if (s->w_expr && !s->h_expr)
140  FFSWAP(char *, s->w_expr, s->size_str);
141 
142  if (s->size_str) {
143  char buf[32];
144  if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) {
145  av_log(ctx, AV_LOG_ERROR,
146  "Invalid size '%s'\n", s->size_str);
147  return ret;
148  }
149  snprintf(buf, sizeof(buf)-1, "%d", s->w);
150  av_opt_set(s, "w", buf, 0);
151  snprintf(buf, sizeof(buf)-1, "%d", s->h);
152  av_opt_set(s, "h", buf, 0);
153  }
154  if (!s->w_expr)
155  av_opt_set(s, "w", "iw", 0);
156  if (!s->h_expr)
157  av_opt_set(s, "h", "ih", 0);
158 
159  return 0;
160 }
161 
163 {
164  static const enum AVPixelFormat pixel_fmts[] = {
185  };
186  int ret;
187 
188  ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->out_formats);
189  if (ret < 0)
190  return ret;
191  return ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->in_formats);
192 }
193 
194 static int config_props(AVFilterLink *outlink)
195 {
196  AVFilterContext *ctx = outlink->src;
197  AVFilterLink *inlink = outlink->src->inputs[0];
198  ZScaleContext *s = ctx->priv;
200  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format);
201  int64_t w, h;
202  double var_values[VARS_NB], res;
203  char *expr;
204  int ret;
205  int factor_w, factor_h;
206 
207  var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
208  var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
209  var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
210  var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
211  var_values[VAR_A] = (double) inlink->w / inlink->h;
212  var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
213  (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
214  var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
215  var_values[VAR_HSUB] = 1 << desc->log2_chroma_w;
216  var_values[VAR_VSUB] = 1 << desc->log2_chroma_h;
217  var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w;
218  var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h;
219 
220  /* evaluate width and height */
221  av_expr_parse_and_eval(&res, (expr = s->w_expr),
222  var_names, var_values,
223  NULL, NULL, NULL, NULL, NULL, 0, ctx);
224  s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;
225  if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
226  var_names, var_values,
227  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
228  goto fail;
229  s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;
230  /* evaluate again the width, as it may depend on the output height */
231  if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
232  var_names, var_values,
233  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
234  goto fail;
235  s->w = res;
236 
237  w = s->w;
238  h = s->h;
239 
240  /* Check if it is requested that the result has to be divisible by a some
241  * factor (w or h = -n with n being the factor). */
242  factor_w = 1;
243  factor_h = 1;
244  if (w < -1) {
245  factor_w = -w;
246  }
247  if (h < -1) {
248  factor_h = -h;
249  }
250 
251  if (w < 0 && h < 0)
252  s->w = s->h = 0;
253 
254  if (!(w = s->w))
255  w = inlink->w;
256  if (!(h = s->h))
257  h = inlink->h;
258 
259  /* Make sure that the result is divisible by the factor we determined
260  * earlier. If no factor was set, it is nothing will happen as the default
261  * factor is 1 */
262  if (w < 0)
263  w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w;
264  if (h < 0)
265  h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h;
266 
267  /* Note that force_original_aspect_ratio may overwrite the previous set
268  * dimensions so that it is not divisible by the set factors anymore. */
270  int tmp_w = av_rescale(h, inlink->w, inlink->h);
271  int tmp_h = av_rescale(w, inlink->h, inlink->w);
272 
273  if (s->force_original_aspect_ratio == 1) {
274  w = FFMIN(tmp_w, w);
275  h = FFMIN(tmp_h, h);
276  } else {
277  w = FFMAX(tmp_w, w);
278  h = FFMAX(tmp_h, h);
279  }
280  }
281 
282  if (w > INT_MAX || h > INT_MAX ||
283  (h * inlink->w) > INT_MAX ||
284  (w * inlink->h) > INT_MAX)
285  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
286 
287  outlink->w = w;
288  outlink->h = h;
289 
290  if (inlink->w == outlink->w &&
291  inlink->h == outlink->h &&
292  inlink->format == outlink->format)
293  ;
294  else {
295  }
296 
297  if (inlink->sample_aspect_ratio.num){
298  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
299  } else
300  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
301 
302  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",
303  inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
305  outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format),
306  outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den);
307  return 0;
308 
309 fail:
310  av_log(ctx, AV_LOG_ERROR,
311  "Error when evaluating the expression '%s'.\n"
312  "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n",
313  expr, s->w_expr, s->h_expr);
314  return ret;
315 }
316 
318 {
319  char err_msg[1024];
320  int err_code = zimg_get_last_error(err_msg, sizeof(err_msg));
321 
322  av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg);
323 
324  return err_code;
325 }
326 
327 static int convert_chroma_location(enum AVChromaLocation chroma_location)
328 {
329  switch (chroma_location) {
331  case AVCHROMA_LOC_LEFT:
332  return ZIMG_CHROMA_LEFT;
333  case AVCHROMA_LOC_CENTER:
334  return ZIMG_CHROMA_CENTER;
336  return ZIMG_CHROMA_TOP_LEFT;
337  case AVCHROMA_LOC_TOP:
338  return ZIMG_CHROMA_TOP;
340  return ZIMG_CHROMA_BOTTOM_LEFT;
341  case AVCHROMA_LOC_BOTTOM:
342  return ZIMG_CHROMA_BOTTOM;
343  }
344  return ZIMG_CHROMA_LEFT;
345 }
346 
347 static int convert_matrix(enum AVColorSpace colorspace)
348 {
349  switch (colorspace) {
350  case AVCOL_SPC_RGB:
351  return ZIMG_MATRIX_RGB;
352  case AVCOL_SPC_BT709:
353  return ZIMG_MATRIX_709;
355  return ZIMG_MATRIX_UNSPECIFIED;
356  case AVCOL_SPC_BT470BG:
357  return ZIMG_MATRIX_470BG;
358  case AVCOL_SPC_SMPTE170M:
359  return ZIMG_MATRIX_170M;
360  case AVCOL_SPC_YCGCO:
361  return ZIMG_MATRIX_YCGCO;
363  return ZIMG_MATRIX_2020_NCL;
364  case AVCOL_SPC_BT2020_CL:
365  return ZIMG_MATRIX_2020_CL;
366  }
367  return ZIMG_MATRIX_UNSPECIFIED;
368 }
369 
370 static int convert_trc(enum AVColorTransferCharacteristic color_trc)
371 {
372  switch (color_trc) {
374  return ZIMG_TRANSFER_UNSPECIFIED;
375  case AVCOL_TRC_BT709:
376  return ZIMG_TRANSFER_709;
377  case AVCOL_TRC_SMPTE170M:
378  return ZIMG_TRANSFER_601;
379  case AVCOL_TRC_LINEAR:
380  return ZIMG_TRANSFER_LINEAR;
381  case AVCOL_TRC_BT2020_10:
382  return ZIMG_TRANSFER_2020_10;
383  case AVCOL_TRC_BT2020_12:
384  return ZIMG_TRANSFER_2020_12;
385  case AVCOL_TRC_SMPTE2084:
386  return ZIMG_TRANSFER_ST2084;
388  return ZIMG_TRANSFER_ARIB_B67;
390  return ZIMG_TRANSFER_IEC_61966_2_1;
391  }
392  return ZIMG_TRANSFER_UNSPECIFIED;
393 }
394 
396 {
397  switch (color_primaries) {
399  return ZIMG_PRIMARIES_UNSPECIFIED;
400  case AVCOL_PRI_BT709:
401  return ZIMG_PRIMARIES_709;
402  case AVCOL_PRI_SMPTE170M:
403  return ZIMG_PRIMARIES_170M;
404  case AVCOL_PRI_SMPTE240M:
405  return ZIMG_PRIMARIES_240M;
406  case AVCOL_PRI_BT2020:
407  return ZIMG_PRIMARIES_2020;
408  case AVCOL_PRI_SMPTE432:
409  return ZIMG_PRIMARIES_ST432_1;
410  }
411  return ZIMG_PRIMARIES_UNSPECIFIED;
412 }
413 
415 {
416  switch (color_range) {
418  case AVCOL_RANGE_MPEG:
419  return ZIMG_RANGE_LIMITED;
420  case AVCOL_RANGE_JPEG:
421  return ZIMG_RANGE_FULL;
422  }
423  return ZIMG_RANGE_LIMITED;
424 }
425 
426 static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc,
427  int colorspace, int primaries, int transfer, int range, int location)
428 {
429  format->width = frame->width;
430  format->height = frame->height;
431  format->subsample_w = desc->log2_chroma_w;
432  format->subsample_h = desc->log2_chroma_h;
433  format->depth = desc->comp[0].depth;
434  format->pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
435  format->color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
436  format->matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : colorspace == -1 ? convert_matrix(frame->colorspace) : colorspace;
437  format->color_primaries = primaries == -1 ? convert_primaries(frame->color_primaries) : primaries;
438  format->transfer_characteristics = transfer == - 1 ? convert_trc(frame->color_trc) : transfer;
439  format->pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : range == -1 ? convert_range(frame->color_range) : range;
440  format->chroma_location = location == -1 ? convert_chroma_location(frame->chroma_location) : location;
441 }
442 
443 static int graph_build(zimg_filter_graph **graph, zimg_graph_builder_params *params,
444  zimg_image_format *src_format, zimg_image_format *dst_format,
445  void **tmp, size_t *tmp_size)
446 {
447  int ret;
448  size_t size;
449 
450  zimg_filter_graph_free(*graph);
451  *graph = zimg_filter_graph_build(src_format, dst_format, params);
452  if (!*graph)
453  return print_zimg_error(NULL);
454 
455  ret = zimg_filter_graph_get_tmp_size(*graph, &size);
456  if (ret)
457  return print_zimg_error(NULL);
458 
459  if (size > *tmp_size) {
460  av_freep(tmp);
461  *tmp = av_malloc(size);
462  if (!*tmp)
463  return AVERROR(ENOMEM);
464 
465  *tmp_size = size;
466  }
467 
468  return 0;
469 }
470 
471 static int filter_frame(AVFilterLink *link, AVFrame *in)
472 {
473  ZScaleContext *s = link->dst->priv;
474  AVFilterLink *outlink = link->dst->outputs[0];
476  const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format);
477  zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
478  zimg_image_buffer dst_buf = { ZIMG_API_VERSION };
479  char buf[32];
480  int ret = 0, plane;
481  AVFrame *out;
482 
483  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
484  if (!out) {
485  av_frame_free(&in);
486  return AVERROR(ENOMEM);
487  }
488 
489  av_frame_copy_props(out, in);
490  out->width = outlink->w;
491  out->height = outlink->h;
492 
493  if( in->width != link->w
494  || in->height != link->h
495  || in->format != link->format
496  || s->in_colorspace != in->colorspace
497  || s->in_trc != in->color_trc
498  || s->in_primaries != in->color_primaries
499  || s->in_range != in->color_range
500  || s->out_colorspace != out->colorspace
501  || s->out_trc != out->color_trc
502  || s->out_primaries != out->color_primaries
503  || s->out_range != out->color_range
504  || s->in_chromal != in->chroma_location
505  || s->out_chromal != out->chroma_location) {
506  snprintf(buf, sizeof(buf)-1, "%d", outlink->w);
507  av_opt_set(s, "w", buf, 0);
508  snprintf(buf, sizeof(buf)-1, "%d", outlink->h);
509  av_opt_set(s, "h", buf, 0);
510 
511  link->dst->inputs[0]->format = in->format;
512  link->dst->inputs[0]->w = in->width;
513  link->dst->inputs[0]->h = in->height;
514 
515  if ((ret = config_props(outlink)) < 0) {
516  av_frame_free(&in);
517  av_frame_free(&out);
518  return ret;
519  }
520 
521  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
522  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
523  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
524 
525  s->params.dither_type = s->dither;
526  s->params.cpu_type = ZIMG_CPU_AUTO;
527  s->params.resample_filter = s->filter;
528  s->params.resample_filter_uv = s->filter;
529  s->params.nominal_peak_luminance = s->nominal_peak_luminance;
530  s->params.allow_approximate_gamma = s->approximate_gamma;
531 
532  format_init(&s->src_format, in, desc, s->colorspace_in,
533  s->primaries_in, s->trc_in, s->range_in, s->chromal_in);
534  format_init(&s->dst_format, out, odesc, s->colorspace,
535  s->primaries, s->trc, s->range, s->chromal);
536 
537  if (s->colorspace != -1)
538  out->colorspace = (int)s->dst_format.matrix_coefficients;
539 
540  if (s->primaries != -1)
541  out->color_primaries = (int)s->dst_format.color_primaries;
542 
543  if (s->range != -1)
544  out->color_range = (int)s->dst_format.pixel_range + 1;
545 
546  if (s->trc != -1)
547  out->color_trc = (int)s->dst_format.transfer_characteristics;
548 
549  if (s->chromal != -1)
550  out->chroma_location = (int)s->dst_format.chroma_location - 1;
551 
552  ret = graph_build(&s->graph, &s->params, &s->src_format, &s->dst_format,
553  &s->tmp, &s->tmp_size);
554  if (ret < 0)
555  goto fail;
556 
557  s->in_colorspace = in->colorspace;
558  s->in_trc = in->color_trc;
559  s->in_primaries = in->color_primaries;
560  s->in_range = in->color_range;
561  s->out_colorspace = out->colorspace;
562  s->out_trc = out->color_trc;
563  s->out_primaries = out->color_primaries;
564  s->out_range = out->color_range;
565 
566  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
567  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
568  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
569  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
570 
571  s->alpha_params.dither_type = s->dither;
572  s->alpha_params.cpu_type = ZIMG_CPU_AUTO;
573  s->alpha_params.resample_filter = s->filter;
574 
575  s->alpha_src_format.width = in->width;
576  s->alpha_src_format.height = in->height;
577  s->alpha_src_format.depth = desc->comp[0].depth;
578  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;
579  s->alpha_src_format.color_family = ZIMG_COLOR_GREY;
580 
581  s->alpha_dst_format.width = out->width;
582  s->alpha_dst_format.height = out->height;
583  s->alpha_dst_format.depth = odesc->comp[0].depth;
584  s->alpha_dst_format.pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
585  s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
586 
587  zimg_filter_graph_free(s->alpha_graph);
588  s->alpha_graph = zimg_filter_graph_build(&s->alpha_src_format, &s->alpha_dst_format, &s->alpha_params);
589  if (!s->alpha_graph) {
590  ret = print_zimg_error(link->dst);
591  goto fail;
592  }
593  }
594  }
595 
596  if (s->colorspace != -1)
597  out->colorspace = (int)s->dst_format.matrix_coefficients;
598 
599  if (s->primaries != -1)
600  out->color_primaries = (int)s->dst_format.color_primaries;
601 
602  if (s->range != -1)
603  out->color_range = (int)s->dst_format.pixel_range;
604 
605  if (s->trc != -1)
606  out->color_trc = (int)s->dst_format.transfer_characteristics;
607 
609  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
610  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
611  INT_MAX);
612 
613  for (plane = 0; plane < 3; plane++) {
614  int p = desc->comp[plane].plane;
615  src_buf.plane[plane].data = in->data[p];
616  src_buf.plane[plane].stride = in->linesize[p];
617  src_buf.plane[plane].mask = -1;
618 
619  p = odesc->comp[plane].plane;
620  dst_buf.plane[plane].data = out->data[p];
621  dst_buf.plane[plane].stride = out->linesize[p];
622  dst_buf.plane[plane].mask = -1;
623  }
624 
625  ret = zimg_filter_graph_process(s->graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0);
626  if (ret) {
627  print_zimg_error(link->dst);
628  goto fail;
629  }
630 
631  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
632  src_buf.plane[0].data = in->data[3];
633  src_buf.plane[0].stride = in->linesize[3];
634  src_buf.plane[0].mask = -1;
635 
636  dst_buf.plane[0].data = out->data[3];
637  dst_buf.plane[0].stride = out->linesize[3];
638  dst_buf.plane[0].mask = -1;
639 
640  ret = zimg_filter_graph_process(s->alpha_graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0);
641  if (ret) {
642  print_zimg_error(link->dst);
643  goto fail;
644  }
645  } else if (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
646  int x, y;
647 
648  if (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) {
649  for (y = 0; y < out->height; y++) {
650  for (x = 0; x < out->width; x++) {
651  AV_WN32(out->data[3] + x * odesc->comp[3].step + y * out->linesize[3],
652  av_float2int(1.0f));
653  }
654  }
655  } else {
656  for (y = 0; y < outlink->h; y++)
657  memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w);
658  }
659  }
660 
661 fail:
662  av_frame_free(&in);
663  if (ret) {
664  av_frame_free(&out);
665  return ret;
666  }
667 
668  return ff_filter_frame(outlink, out);
669 }
670 
672 {
673  ZScaleContext *s = ctx->priv;
674 
675  zimg_filter_graph_free(s->graph);
676  av_freep(&s->tmp);
677  s->tmp_size = 0;
678 }
679 
680 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
681  char *res, int res_len, int flags)
682 {
683  ZScaleContext *s = ctx->priv;
684  int ret;
685 
686  if ( !strcmp(cmd, "width") || !strcmp(cmd, "w")
687  || !strcmp(cmd, "height") || !strcmp(cmd, "h")) {
688 
689  int old_w = s->w;
690  int old_h = s->h;
691  AVFilterLink *outlink = ctx->outputs[0];
692 
693  av_opt_set(s, cmd, args, 0);
694  if ((ret = config_props(outlink)) < 0) {
695  s->w = old_w;
696  s->h = old_h;
697  }
698  } else
699  ret = AVERROR(ENOSYS);
700 
701  return ret;
702 }
703 
704 #define OFFSET(x) offsetof(ZScaleContext, x)
705 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
706 
707 static const AVOption zscale_options[] = {
708  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
709  { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
710  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
711  { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
712  { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
713  { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
714  { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
715  { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
716  { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, "dither" },
717  { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, "dither" },
718  { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, "dither" },
719  { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, "dither" },
720  { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
721  { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
722  { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, "filter" },
723  { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, "filter" },
724  { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, "filter" },
725  { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, "filter" },
726  { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, "filter" },
727  { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, "filter" },
728  { "out_range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
729  { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
730  { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
731  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
732  { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
733  { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
734  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
735  { "tv", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
736  { "pc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
737  { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_ST432_1, FLAGS, "primaries" },
738  { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_ST432_1, FLAGS, "primaries" },
739  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "primaries" },
740  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
741  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
742  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
743  { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
744  { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
745  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
746  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
747  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
748  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
749  { "bt2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
750  { "smpte432", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST432_1}, 0, 0, FLAGS, "primaries" },
751  { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_ARIB_B67, FLAGS, "transfer" },
752  { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_ARIB_B67, FLAGS, "transfer" },
753  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "transfer" },
754  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
755  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
756  { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
757  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
758  { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
759  { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
760  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
761  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
762  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
763  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
764  { "bt2020-10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
765  { "bt2020-12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
766  { "smpte2084", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ST2084}, 0, 0, FLAGS, "transfer" },
767  { "iec61966-2-1", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_1},0, 0, FLAGS, "transfer" },
768  { "arib-std-b67", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ARIB_B67}, 0, 0, FLAGS, "transfer" },
769  { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
770  { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
771  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "matrix" },
772  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
773  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
774  { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
775  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
776  { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
777  { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
778  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
779  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
780  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
781  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
782  { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, "matrix" },
783  { "bt2020nc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
784  { "bt2020c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
785  { "in_range", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
786  { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
787  { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
788  { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_ST432_1, FLAGS, "primaries" },
789  { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_ST432_1, FLAGS, "primaries" },
790  { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_ARIB_B67, FLAGS, "transfer" },
791  { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_ARIB_B67, FLAGS, "transfer" },
792  { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
793  { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
794  { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
795  { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
796  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "chroma" },
797  { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, "chroma" },
798  { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, "chroma" },
799  { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, "chroma" },
800  { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, "chroma" },
801  { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, "chroma" },
802  { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, "chroma" },
803  { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
804  { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
805  { "npl", "set nominal peak luminance", OFFSET(nominal_peak_luminance), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, 0, DBL_MAX, FLAGS },
806  { "agamma", "allow approximate gamma", OFFSET(approximate_gamma), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
807  { NULL }
808 };
809 
810 static const AVClass zscale_class = {
811  .class_name = "zscale",
812  .item_name = av_default_item_name,
813  .option = zscale_options,
814  .version = LIBAVUTIL_VERSION_INT,
815  .category = AV_CLASS_CATEGORY_FILTER,
816 };
817 
819  {
820  .name = "default",
821  .type = AVMEDIA_TYPE_VIDEO,
822  .filter_frame = filter_frame,
823  },
824  { NULL }
825 };
826 
828  {
829  .name = "default",
830  .type = AVMEDIA_TYPE_VIDEO,
831  .config_props = config_props,
832  },
833  { NULL }
834 };
835 
837  .name = "zscale",
838  .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."),
839  .init_dict = init_dict,
840  .query_formats = query_formats,
841  .priv_size = sizeof(ZScaleContext),
842  .priv_class = &zscale_class,
843  .uninit = uninit,
844  .inputs = avfilter_vf_zscale_inputs,
845  .outputs = avfilter_vf_zscale_outputs,
847 };
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:471
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
Definition: pixfmt.h:486
int plane
Definition: avisynth_c.h:422
static const AVFilterPad avfilter_vf_zscale_outputs[]
Definition: vf_zscale.c:827
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:418
const char * s
Definition: avisynth_c.h:768
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:412
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2419
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:531
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
int out_v_chr_pos
Definition: vf_zscale.c:107
AVOption.
Definition: opt.h:246
"Linear transfer characteristics"
Definition: pixfmt.h:464
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:414
int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
Parse str and put in width_ptr and height_ptr the detected values.
Definition: parseutils.c:148
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:389
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:415
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:86
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:60
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601 ...
Definition: pixfmt.h:490
SMPTE ST 432-1 (2010) / P3 D65 / Display P3.
Definition: pixfmt.h:446
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:395
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:491
zimg_image_format dst_format
Definition: vf_zscale.c:116
color_range
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:383
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:92
int approximate_gamma
Definition: vf_zscale.c:101
zimg_graph_builder_params alpha_params
Definition: vf_zscale.c:118
enum AVColorSpace in_colorspace out_colorspace
Definition: vf_zscale.c:121
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)
Definition: pixfmt.h:485
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:455
char * w_expr
width expression string
Definition: vf_zscale.c:103
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:60
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:119
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1151
static int print_zimg_error(AVFilterContext *ctx)
Definition: vf_zscale.c:317
enum AVColorPrimaries in_primaries out_primaries
Definition: vf_zscale.c:123
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:117
#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:484
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
Definition: pixdesc.h:184
Used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16.
Definition: pixfmt.h:493
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:411
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:394
static AVFrame * frame
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
static int flags
Definition: log.c:57
int in_h_chr_pos
Definition: vf_zscale.c:108
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:818
static int convert_range(enum AVColorRange color_range)
Definition: vf_zscale.c:414
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:392
AVColorRange
MPEG vs JPEG YUV range.
Definition: pixfmt.h:507
ptrdiff_t size
Definition: opengl_enc.c:101
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:384
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:417
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:431
#define av_log(a,...)
static int convert_matrix(enum AVColorSpace colorspace)
Definition: vf_zscale.c:347
static int query_formats(AVFilterContext *ctx)
Definition: vf_zscale.c:162
A filter pad used for either input or output.
Definition: internal.h:54
enum AVColorRange in_range out_range
Definition: vf_zscale.c:124
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:426
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:737
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:188
int width
Definition: frame.h:259
#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:128
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:471
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:163
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
void * tmp
Definition: vf_zscale.c:113
static const uint8_t dither[8][8]
Definition: vf_fspp.c:57
void * priv
private data for use by the filter
Definition: avfilter.h:353
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:446
#define OFFSET(x)
Definition: vf_zscale.c:704
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:419
GLenum GLint * params
Definition: opengl_enc.c:114
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:457
zimg_image_format alpha_src_format
Definition: vf_zscale.c:117
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
Definition: pixfmt.h:433
simple assert() macros that are a bit more flexible than ISO C assert().
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:382
#define FFMAX(a, b)
Definition: common.h:94
#define fail()
Definition: checkasm.h:109
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:401
int w
New dimensions.
Definition: vf_zscale.c:86
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:377
AVDictionary * opts
Definition: movenc.c:50
SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems.
Definition: pixfmt.h:472
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:398
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:99
zimg_filter_graph * graph
Definition: vf_zscale.c:119
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
static int graph_build(zimg_filter_graph **graph, zimg_graph_builder_params *params, zimg_image_format *src_format, zimg_image_format *dst_format, void **tmp, size_t *tmp_size)
Definition: vf_zscale.c:443
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:671
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:495
ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2.
Definition: pixfmt.h:533
static const struct ColorPrimaries color_primaries[AVCOL_PRI_NB]
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:416
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:389
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:378
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:397
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:510
int colorspace_in
Definition: vf_zscale.c:94
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:390
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:274
also ITU-R BT1361
Definition: pixfmt.h:457
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:379
also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
Definition: pixfmt.h:462
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:387
zimg_graph_builder_params params
Definition: vf_zscale.c:118
double nominal_peak_luminance
Definition: vf_zscale.c:100
int chromal_in
Definition: vf_zscale.c:98
functionally identical to above
Definition: pixfmt.h:440
enum AVChromaLocation in_chromal out_chromal
Definition: vf_zscale.c:125
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:232
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:370
static const char *const var_names[]
Definition: vf_zscale.c:47
char * h_expr
height expression string
Definition: vf_zscale.c:104
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:289
zimg_image_format src_format
Definition: vf_zscale.c:116
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:106
void * buf
Definition: avisynth_c.h:690
int primaries_in
Definition: vf_zscale.c:96
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:379
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_zscale.c:680
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
int colorspace
Definition: vf_zscale.c:89
static const char * format
Definition: movenc.c:47
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:395
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:327
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:376
enum AVChromaLocation chroma_location
Definition: frame.h:459
#define snprintf
Definition: snprintf.h:34
static av_always_inline uint32_t av_float2int(float f)
Reinterpret a float as a 32-bit integer.
Definition: intfloat.h:50
misc parsing utilities
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static const AVClass zscale_class
Definition: vf_zscale.c:810
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:388
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:396
size_t tmp_size
Definition: vf_zscale.c:114
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:380
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:386
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:509
static int config_props(AVFilterLink *outlink)
Definition: vf_zscale.c:194
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:496
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:408
int
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:409
IEC 61966-2-1 (sRGB or sYCC)
Definition: pixfmt.h:469
if(ret< 0)
Definition: vf_mcdeint.c:279
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:229
#define AV_WN32(p, v)
Definition: intreadwrite.h:381
AVFilter ff_vf_zscale
Definition: vf_zscale.c:836
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:413
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:707
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:111
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:476
#define NAN
Definition: math.h:28
#define FLAGS
Definition: vf_zscale.c:705
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:109
enum AVColorPrimaries color_primaries
Definition: frame.h:448
An instance of a filter.
Definition: avfilter.h:338
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:470
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:439
ITU-R BT2020.
Definition: pixfmt.h:442
int height
Definition: frame.h:259
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:529
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:450
MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0.
Definition: pixfmt.h:532
#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:2335
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:449
enum AVColorTransferCharacteristic in_trc out_trc
Definition: vf_zscale.c:122
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:391
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:603
int step
Number of elements between 2 horizontally consecutive pixels.
Definition: pixdesc.h:41
simple arithmetic expression evaluator
static uint8_t tmp[11]
Definition: aes_ctr.c:26