FFmpeg
vf_zscale.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015 Paul B Mahol
3  * Copyright (c) 2022 Victoria Zhislina, Intel
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * zscale video filter using z.lib library
25  */
26 
27 #include <float.h>
28 #include <stdio.h>
29 #include <string.h>
30 
31 #include <zimg.h>
32 
33 #include "avfilter.h"
34 #include "formats.h"
35 #include "internal.h"
36 #include "video.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/eval.h"
39 #include "libavutil/internal.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/parseutils.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/imgutils.h"
46 
47 #define ZIMG_ALIGNMENT 64
48 #define MIN_TILESIZE 64
49 #define MAX_THREADS 64
50 
51 static const char *const var_names[] = {
52  "in_w", "iw",
53  "in_h", "ih",
54  "out_w", "ow",
55  "out_h", "oh",
56  "a",
57  "sar",
58  "dar",
59  "hsub",
60  "vsub",
61  "ohsub",
62  "ovsub",
63  NULL
64 };
65 
66 enum var_name {
67  VAR_IN_W, VAR_IW,
68  VAR_IN_H, VAR_IH,
69  VAR_OUT_W, VAR_OW,
70  VAR_OUT_H, VAR_OH,
71  VAR_A,
72  VAR_SAR,
73  VAR_DAR,
74  VAR_HSUB,
75  VAR_VSUB,
76  VAR_OHSUB,
77  VAR_OVSUB,
78  VARS_NB
79 };
80 
81 typedef struct ZScaleContext {
82  const AVClass *class;
83 
84  /**
85  * New dimensions. Special values are:
86  * 0 = original width/height
87  * -1 = keep original aspect
88  * -N = try to keep aspect but make sure it is divisible by N
89  */
90  int w, h;
91  int dither;
92  int filter;
93  int colorspace;
94  int trc;
95  int primaries;
96  int range;
97  int chromal;
98  int colorspace_in;
99  int trc_in;
100  int primaries_in;
101  int range_in;
102  int chromal_in;
103  char *size_str;
104  double nominal_peak_luminance;
105  int approximate_gamma;
106  double param_a;
107  double param_b;
108 
109  char *w_expr; ///< width expression string
110  char *h_expr; ///< height expression string
111 
112  int out_h_chr_pos;
113  int out_v_chr_pos;
114  int in_h_chr_pos;
115  int in_v_chr_pos;
116 
117  int first_time;
118  int force_original_aspect_ratio;
119 
120  void *tmp[MAX_THREADS]; //separate for each thread;
121  int nb_threads;
122  int jobs_ret[MAX_THREADS];
123  double in_slice_start[MAX_THREADS];
124  double in_slice_end[MAX_THREADS];
125  int out_slice_start[MAX_THREADS];
126  int out_slice_end[MAX_THREADS];
127 
128  zimg_image_format src_format, dst_format;
129  zimg_image_format alpha_src_format, alpha_dst_format;
130  zimg_image_format src_format_tmp, dst_format_tmp;
131  zimg_image_format alpha_src_format_tmp, alpha_dst_format_tmp;
132  zimg_graph_builder_params alpha_params, params;
133  zimg_graph_builder_params alpha_params_tmp, params_tmp;
134  zimg_filter_graph *alpha_graph[MAX_THREADS], *graph[MAX_THREADS];
135 
136  enum AVColorSpace in_colorspace, out_colorspace;
137  enum AVColorTransferCharacteristic in_trc, out_trc;
138  enum AVColorPrimaries in_primaries, out_primaries;
139  enum AVColorRange in_range, out_range;
140  enum AVChromaLocation in_chromal, out_chromal;
141 } ZScaleContext;
142 
143 typedef struct ThreadData {
144  const AVPixFmtDescriptor *desc, *odesc;
145  AVFrame *in, *out;
146 } ThreadData;
147 
148 static av_cold int init(AVFilterContext *ctx)
149 {
150  ZScaleContext *s = ctx->priv;
151  int ret;
152  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
153  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
154  zimg_image_format_default(&s->src_format_tmp, ZIMG_API_VERSION);
155  zimg_image_format_default(&s->dst_format_tmp, ZIMG_API_VERSION);
156 
157  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
158  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
159  zimg_image_format_default(&s->alpha_src_format_tmp, ZIMG_API_VERSION);
160  zimg_image_format_default(&s->alpha_dst_format_tmp, ZIMG_API_VERSION);
161 
162  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
163  zimg_graph_builder_params_default(&s->params_tmp, ZIMG_API_VERSION);
164  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
165  zimg_graph_builder_params_default(&s->alpha_params_tmp, ZIMG_API_VERSION);
166 
167  if (s->size_str && (s->w_expr || s->h_expr)) {
168  av_log(ctx, AV_LOG_ERROR,
169  "Size and width/height expressions cannot be set at the same time.\n");
170  return AVERROR(EINVAL);
171  }
172 
173  if (s->w_expr && !s->h_expr)
174  FFSWAP(char *, s->w_expr, s->size_str);
175 
176  if (s->size_str) {
177  char buf[32];
178  if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) {
179  av_log(ctx, AV_LOG_ERROR,
180  "Invalid size '%s'\n", s->size_str);
181  return ret;
182  }
183  snprintf(buf, sizeof(buf)-1, "%d", s->w);
184  av_opt_set(s, "w", buf, 0);
185  snprintf(buf, sizeof(buf)-1, "%d", s->h);
186  av_opt_set(s, "h", buf, 0);
187  }
188  if (!s->w_expr)
189  av_opt_set(s, "w", "iw", 0);
190  if (!s->h_expr)
191  av_opt_set(s, "h", "ih", 0);
192 
193  return 0;
194 }
195 
196 static int query_formats(AVFilterContext *ctx)
197 {
198  static const enum AVPixelFormat pixel_fmts[] = {
199  AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
200  AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
201  AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
202  AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
203  AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
204  AV_PIX_FMT_YUVJ411P,
205  AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
206  AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
207  AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12,
208  AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
209  AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
210  AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
211  AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
212  AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
213  AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA422P12,
214  AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
215  AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
216  AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
217  AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP14, AV_PIX_FMT_GBRAP16,
218  AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32,
219  AV_PIX_FMT_NONE
220  };
221  int ret;
222 
223  ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->outcfg.formats);
224  if (ret < 0)
225  return ret;
226  return ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->incfg.formats);
227 }
228 
229 static void slice_params(ZScaleContext *s, int out_h, int in_h)
230 {
231  s->out_slice_start[0] = 0;
232  for (int i = 1; i < s->nb_threads; i++) {
233  int slice_end = out_h * i / s->nb_threads;
234  s->out_slice_end[i - 1] = s->out_slice_start[i] = FFALIGN(slice_end, 2);
235  }
236  s->out_slice_end[s->nb_threads - 1] = out_h;
237 
238  for (int i = 0; i < s->nb_threads; i++) {
239  s->in_slice_start[i] = s->out_slice_start[i] * in_h / (double)out_h;
240  s->in_slice_end[i] = s->out_slice_end[i] * in_h / (double)out_h;
241  }
242 }
243 
244 static int config_props(AVFilterLink *outlink)
245 {
246  AVFilterContext *ctx = outlink->src;
247  AVFilterLink *inlink = outlink->src->inputs[0];
248  ZScaleContext *s = ctx->priv;
249  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
250  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format);
251  int64_t w, h;
252  double var_values[VARS_NB], res;
253  char *expr;
254  int ret;
255  int factor_w, factor_h;
256 
257  var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
258  var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
259  var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
260  var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
261  var_values[VAR_A] = (double) inlink->w / inlink->h;
262  var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
263  (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
264  var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
265  var_values[VAR_HSUB] = 1 << desc->log2_chroma_w;
266  var_values[VAR_VSUB] = 1 << desc->log2_chroma_h;
267  var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w;
268  var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h;
269 
270  /* evaluate width and height */
271  av_expr_parse_and_eval(&res, (expr = s->w_expr),
272  var_names, var_values,
273  NULL, NULL, NULL, NULL, NULL, 0, ctx);
274  s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;
275  if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
276  var_names, var_values,
277  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
278  goto fail;
279  s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;
280  /* evaluate again the width, as it may depend on the output height */
281  if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
282  var_names, var_values,
283  NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
284  goto fail;
285  s->w = res;
286 
287  w = s->w;
288  h = s->h;
289 
290  /* Check if it is requested that the result has to be divisible by a some
291  * factor (w or h = -n with n being the factor). */
292  factor_w = 1;
293  factor_h = 1;
294  if (w < -1) {
295  factor_w = -w;
296  }
297  if (h < -1) {
298  factor_h = -h;
299  }
300 
301  if (w < 0 && h < 0)
302  s->w = s->h = 0;
303 
304  if (!(w = s->w))
305  w = inlink->w;
306  if (!(h = s->h))
307  h = inlink->h;
308 
309  /* Make sure that the result is divisible by the factor we determined
310  * earlier. If no factor was set, it is nothing will happen as the default
311  * factor is 1 */
312  if (w < 0)
313  w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w;
314  if (h < 0)
315  h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h;
316 
317  /* Note that force_original_aspect_ratio may overwrite the previous set
318  * dimensions so that it is not divisible by the set factors anymore. */
319  if (s->force_original_aspect_ratio) {
320  int tmp_w = av_rescale(h, inlink->w, inlink->h);
321  int tmp_h = av_rescale(w, inlink->h, inlink->w);
322 
323  if (s->force_original_aspect_ratio == 1) {
324  w = FFMIN(tmp_w, w);
325  h = FFMIN(tmp_h, h);
326  } else {
327  w = FFMAX(tmp_w, w);
328  h = FFMAX(tmp_h, h);
329  }
330  }
331 
332  if (w > INT_MAX || h > INT_MAX ||
333  (h * inlink->w) > INT_MAX ||
334  (w * inlink->h) > INT_MAX)
335  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
336 
337  outlink->w = w;
338  outlink->h = h;
339 
340  s->first_time = 1;
341 
342  if (inlink->sample_aspect_ratio.num){
343  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
344  } else
345  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
346 
347  av_log(ctx, AV_LOG_TRACE, "w:%d h:%d fmt:%s sar:%d/%d -> w:%d h:%d fmt:%s sar:%d/%d\n",
348  inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
349  inlink->sample_aspect_ratio.num, inlink->sample_aspect_ratio.den,
350  outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format),
351  outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den);
352  return 0;
353 
354 fail:
355  av_log(ctx, AV_LOG_ERROR,
356  "Error when evaluating the expression '%s'.\n"
357  "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n",
358  expr, s->w_expr, s->h_expr);
359  return ret;
360 }
361 
362 static int print_zimg_error(AVFilterContext *ctx)
363 {
364  char err_msg[1024];
365  int err_code = zimg_get_last_error(err_msg, sizeof(err_msg));
366 
367  av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg);
368 
369  return AVERROR_EXTERNAL;
370 }
371 
372 static int convert_chroma_location(enum AVChromaLocation chroma_location)
373 {
374  switch (chroma_location) {
375  case AVCHROMA_LOC_UNSPECIFIED:
376  case AVCHROMA_LOC_LEFT:
377  return ZIMG_CHROMA_LEFT;
378  case AVCHROMA_LOC_CENTER:
379  return ZIMG_CHROMA_CENTER;
380  case AVCHROMA_LOC_TOPLEFT:
381  return ZIMG_CHROMA_TOP_LEFT;
382  case AVCHROMA_LOC_TOP:
383  return ZIMG_CHROMA_TOP;
384  case AVCHROMA_LOC_BOTTOMLEFT:
385  return ZIMG_CHROMA_BOTTOM_LEFT;
386  case AVCHROMA_LOC_BOTTOM:
387  return ZIMG_CHROMA_BOTTOM;
388  }
389  return ZIMG_CHROMA_LEFT;
390 }
391 
392 static int convert_matrix(enum AVColorSpace colorspace)
393 {
394  switch (colorspace) {
395  case AVCOL_SPC_RGB:
396  return ZIMG_MATRIX_RGB;
397  case AVCOL_SPC_BT709:
398  return ZIMG_MATRIX_709;
399  case AVCOL_SPC_UNSPECIFIED:
400  return ZIMG_MATRIX_UNSPECIFIED;
401  case AVCOL_SPC_FCC:
402  return ZIMG_MATRIX_FCC;
403  case AVCOL_SPC_BT470BG:
404  return ZIMG_MATRIX_470BG;
405  case AVCOL_SPC_SMPTE170M:
406  return ZIMG_MATRIX_170M;
407  case AVCOL_SPC_SMPTE240M:
408  return ZIMG_MATRIX_240M;
409  case AVCOL_SPC_YCGCO:
410  return ZIMG_MATRIX_YCGCO;
411  case AVCOL_SPC_BT2020_NCL:
412  return ZIMG_MATRIX_2020_NCL;
413  case AVCOL_SPC_BT2020_CL:
414  return ZIMG_MATRIX_2020_CL;
415  case AVCOL_SPC_CHROMA_DERIVED_NCL:
416  return ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL;
417  case AVCOL_SPC_CHROMA_DERIVED_CL:
418  return ZIMG_MATRIX_CHROMATICITY_DERIVED_CL;
419  case AVCOL_SPC_ICTCP:
420  return ZIMG_MATRIX_ICTCP;
421  }
422  return ZIMG_MATRIX_UNSPECIFIED;
423 }
424 
425 static int convert_trc(enum AVColorTransferCharacteristic color_trc)
426 {
427  switch (color_trc) {
428  case AVCOL_TRC_UNSPECIFIED:
429  return ZIMG_TRANSFER_UNSPECIFIED;
430  case AVCOL_TRC_BT709:
431  return ZIMG_TRANSFER_709;
432  case AVCOL_TRC_GAMMA22:
433  return ZIMG_TRANSFER_470_M;
434  case AVCOL_TRC_GAMMA28:
435  return ZIMG_TRANSFER_470_BG;
436  case AVCOL_TRC_SMPTE170M:
437  return ZIMG_TRANSFER_601;
438  case AVCOL_TRC_SMPTE240M:
439  return ZIMG_TRANSFER_240M;
440  case AVCOL_TRC_LINEAR:
441  return ZIMG_TRANSFER_LINEAR;
442  case AVCOL_TRC_LOG:
443  return ZIMG_TRANSFER_LOG_100;
444  case AVCOL_TRC_LOG_SQRT:
445  return ZIMG_TRANSFER_LOG_316;
446  case AVCOL_TRC_IEC61966_2_4:
447  return ZIMG_TRANSFER_IEC_61966_2_4;
448  case AVCOL_TRC_BT2020_10:
449  return ZIMG_TRANSFER_2020_10;
450  case AVCOL_TRC_BT2020_12:
451  return ZIMG_TRANSFER_2020_12;
452  case AVCOL_TRC_SMPTE2084:
453  return ZIMG_TRANSFER_ST2084;
454  case AVCOL_TRC_ARIB_STD_B67:
455  return ZIMG_TRANSFER_ARIB_B67;
456  case AVCOL_TRC_IEC61966_2_1:
457  return ZIMG_TRANSFER_IEC_61966_2_1;
458  }
459  return ZIMG_TRANSFER_UNSPECIFIED;
460 }
461 
462 static int convert_primaries(enum AVColorPrimaries color_primaries)
463 {
464  switch (color_primaries) {
465  case AVCOL_PRI_UNSPECIFIED:
466  return ZIMG_PRIMARIES_UNSPECIFIED;
467  case AVCOL_PRI_BT709:
468  return ZIMG_PRIMARIES_709;
469  case AVCOL_PRI_BT470M:
470  return ZIMG_PRIMARIES_470_M;
471  case AVCOL_PRI_BT470BG:
472  return ZIMG_PRIMARIES_470_BG;
473  case AVCOL_PRI_SMPTE170M:
474  return ZIMG_PRIMARIES_170M;
475  case AVCOL_PRI_SMPTE240M:
476  return ZIMG_PRIMARIES_240M;
477  case AVCOL_PRI_FILM:
478  return ZIMG_PRIMARIES_FILM;
479  case AVCOL_PRI_BT2020:
480  return ZIMG_PRIMARIES_2020;
481  case AVCOL_PRI_SMPTE428:
482  return ZIMG_PRIMARIES_ST428;
483  case AVCOL_PRI_SMPTE431:
484  return ZIMG_PRIMARIES_ST431_2;
485  case AVCOL_PRI_SMPTE432:
486  return ZIMG_PRIMARIES_ST432_1;
487  case AVCOL_PRI_JEDEC_P22:
488  return ZIMG_PRIMARIES_EBU3213_E;
489  }
490  return ZIMG_PRIMARIES_UNSPECIFIED;
491 }
492 
493 static int convert_range(enum AVColorRange color_range)
494 {
495  switch (color_range) {
496  case AVCOL_RANGE_UNSPECIFIED:
497  case AVCOL_RANGE_MPEG:
498  return ZIMG_RANGE_LIMITED;
499  case AVCOL_RANGE_JPEG:
500  return ZIMG_RANGE_FULL;
501  }
502  return ZIMG_RANGE_LIMITED;
503 }
504 
505 static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range)
506 {
507  switch (color_range) {
508  case ZIMG_RANGE_LIMITED:
509  return AVCOL_RANGE_MPEG;
510  case ZIMG_RANGE_FULL:
511  return AVCOL_RANGE_JPEG;
512  }
513  return AVCOL_RANGE_UNSPECIFIED;
514 }
515 
516 /* returns 0 if image formats are the same and 1 otherwise */
517 static int compare_zimg_image_formats(zimg_image_format *img_fmt0, zimg_image_format *img_fmt1)
518 {
519  return ((img_fmt0->chroma_location != img_fmt1->chroma_location) ||
520 #if ZIMG_API_VERSION >= 0x204
521  (img_fmt0->alpha != img_fmt1->alpha) ||
522 #endif
523  (img_fmt0->color_family != img_fmt1->color_family) ||
524  (img_fmt0->color_primaries != img_fmt1->color_primaries) ||
525  (img_fmt0->depth != img_fmt1->depth) ||
526  (img_fmt0->field_parity != img_fmt1->field_parity) ||
527  (img_fmt0->height != img_fmt1->height) ||
528  (img_fmt0->matrix_coefficients != img_fmt1->matrix_coefficients) ||
529  (img_fmt0->pixel_range != img_fmt1->pixel_range) ||
530  (img_fmt0->pixel_type != img_fmt1->pixel_type) ||
531  (img_fmt0->subsample_h != img_fmt1->subsample_h) ||
532  (img_fmt0->subsample_w != img_fmt1->subsample_w) ||
533  (img_fmt0->transfer_characteristics != img_fmt1->transfer_characteristics) ||
534  (img_fmt0->width != img_fmt1->width));
535 }
536 
537 /* returns 0 if graph builder parameters are the same and 1 otherwise */
538 static int compare_zimg_graph_builder_params(zimg_graph_builder_params *parm0, zimg_graph_builder_params *parm1)
539 {
540  /* the parameters that could be changed inside a single ffmpeg zscale invocation are checked only
541  and NaN values that are default for some params are treated properly*/
542  int ret = (parm0->allow_approximate_gamma != parm1->allow_approximate_gamma) ||
543  (parm0->dither_type != parm1->dither_type) ||
544  (parm0->resample_filter != parm1->resample_filter) ||
545  (parm0->resample_filter_uv != parm1->resample_filter_uv);
546 
547  if ((isnan(parm0->nominal_peak_luminance) == 0) || (isnan(parm1->nominal_peak_luminance) == 0))
548  ret = ret || (parm0->nominal_peak_luminance != parm1->nominal_peak_luminance);
549  if ((isnan(parm0->filter_param_a) == 0) || (isnan(parm1->filter_param_a) == 0))
550  ret = ret || (parm0->filter_param_a != parm1->filter_param_a);
551  if ((isnan(parm0->filter_param_a_uv) == 0) || (isnan(parm1->filter_param_a_uv) == 0))
552  ret = ret || (parm0->filter_param_a_uv != parm1->filter_param_a_uv);
553  if ((isnan(parm0->filter_param_b) == 0) || (isnan(parm1->filter_param_b) == 0))
554  ret = ret || (parm0->filter_param_b != parm1->filter_param_b);
555  if ((isnan(parm0->filter_param_b_uv) == 0) || (isnan(parm1->filter_param_b_uv) == 0))
556  ret = ret || (parm0->filter_param_b_uv != parm1->filter_param_b_uv);
557 
558  return ret;
559 }
560 
561 static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc,
562  int colorspace, int primaries, int transfer, int range, int location)
563 {
564  format->width = frame->width;
565  format->height = frame->height;
566  format->subsample_w = desc->log2_chroma_w;
567  format->subsample_h = desc->log2_chroma_h;
568  format->depth = desc->comp[0].depth;
569  format->pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
570  format->color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
571  format->matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : colorspace == -1 ? convert_matrix(frame->colorspace) : colorspace;
572  format->color_primaries = primaries == -1 ? convert_primaries(frame->color_primaries) : primaries;
573  format->transfer_characteristics = transfer == -1 ? convert_trc(frame->color_trc) : transfer;
574  format->pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : range == -1 ? convert_range(frame->color_range) : range;
575  format->chroma_location = location == -1 ? convert_chroma_location(frame->chroma_location) : location;
576 }
577 
578 static int graphs_build(AVFrame *in, AVFrame *out, const AVPixFmtDescriptor *desc, const AVPixFmtDescriptor *out_desc,
579  AVFilterContext *ctx, int job_nr, int n_jobs)
580 {
581  ZScaleContext *s = ctx->priv;
582  int ret;
583  size_t size;
584  zimg_image_format src_format;
585  zimg_image_format dst_format;
586  zimg_image_format alpha_src_format;
587  zimg_image_format alpha_dst_format;
588  const double in_slice_start = s->in_slice_start[job_nr];
589  const double in_slice_end = s->in_slice_end[job_nr];
590  const int out_slice_start = s->out_slice_start[job_nr];
591  const int out_slice_end = s->out_slice_end[job_nr];
592 
593  src_format = s->src_format;
594  dst_format = s->dst_format;
595  /* The input slice is specified through the active_region field,
596  unlike the output slice.
597  according to zimg requirements input and output slices should have even dimensions */
598  src_format.active_region.width = in->width;
599  src_format.active_region.height = in_slice_end - in_slice_start;
600  src_format.active_region.left = 0;
601  src_format.active_region.top = in_slice_start;
602  //dst now is the single tile only!!
603  dst_format.width = out->width;
604  dst_format.height = out_slice_end - out_slice_start;
605 
606  if (s->graph[job_nr]) {
607  zimg_filter_graph_free(s->graph[job_nr]);
608  }
609  s->graph[job_nr] = zimg_filter_graph_build(&src_format, &dst_format, &s->params);
610  if (!s->graph[job_nr])
611  return print_zimg_error(ctx);
612 
613  ret = zimg_filter_graph_get_tmp_size(s->graph[job_nr], &size);
614  if (ret)
615  return print_zimg_error(ctx);
616 
617  if (s->tmp[job_nr])
618  av_freep(&s->tmp[job_nr]);
619  s->tmp[job_nr] = av_calloc(size, 1);
620  if (!s->tmp[job_nr])
621  return AVERROR(ENOMEM);
622 
623  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && out_desc->flags & AV_PIX_FMT_FLAG_ALPHA) {
624  alpha_src_format = s->alpha_src_format;
625  alpha_dst_format = s->alpha_dst_format;
626  /* The input slice is specified through the active_region field, unlike the output slice.
627  according to zimg requirements input and output slices should have even dimentions */
628  alpha_src_format.active_region.width = in->width;
629  alpha_src_format.active_region.height = in_slice_end - in_slice_start;
630  alpha_src_format.active_region.left = 0;
631  alpha_src_format.active_region.top = in_slice_start;
632  //dst now is the single tile only!!
633  alpha_dst_format.width = out->width;
634  alpha_dst_format.height = out_slice_end - out_slice_start;
635 
636  if (s->alpha_graph[job_nr]) {
637  zimg_filter_graph_free(s->alpha_graph[job_nr]);
638  }
639  s->alpha_graph[job_nr] = zimg_filter_graph_build(&alpha_src_format, &alpha_dst_format, &s->alpha_params);
640  if (!s->alpha_graph[job_nr])
641  return print_zimg_error(ctx);
642  }
643  return 0;
644 }
645 
646 static int realign_frame(const AVPixFmtDescriptor *desc, AVFrame **frame, int needs_copy)
647 {
648  AVFrame *aligned = NULL;
649  int ret = 0, plane, planes;
650 
651  /* Realign any unaligned input frame. */
652  planes = av_pix_fmt_count_planes(desc->nb_components);
653  for (plane = 0; plane < planes; plane++) {
654  int p = desc->comp[plane].plane;
655  if ((uintptr_t)(*frame)->data[p] % ZIMG_ALIGNMENT || (*frame)->linesize[p] % ZIMG_ALIGNMENT) {
656  if (!(aligned = av_frame_alloc())) {
657  ret = AVERROR(ENOMEM);
658  goto fail;
659  }
660 
661  aligned->format = (*frame)->format;
662  aligned->width = (*frame)->width;
663  aligned->height = (*frame)->height;
664 
665  if ((ret = av_frame_get_buffer(aligned, ZIMG_ALIGNMENT)) < 0)
666  goto fail;
667 
668  if (needs_copy && (ret = av_frame_copy(aligned, *frame)) < 0)
669  goto fail;
670 
671  if (needs_copy && (ret = av_frame_copy_props(aligned, *frame)) < 0)
672  goto fail;
673 
674  av_frame_free(frame);
675  *frame = aligned;
676  return 0;
677  }
678  }
679 
680 fail:
681  av_frame_free(&aligned);
682  return ret;
683 }
684 
685 static void update_output_color_information(ZScaleContext *s, AVFrame *frame)
686 {
687  if (s->colorspace != -1)
688  frame->colorspace = (int)s->dst_format.matrix_coefficients;
689 
690  if (s->primaries != -1)
691  frame->color_primaries = (int)s->dst_format.color_primaries;
692 
693  if (s->range != -1)
694  frame->color_range = convert_range_from_zimg(s->dst_format.pixel_range);
695 
696  if (s->trc != -1)
697  frame->color_trc = (int)s->dst_format.transfer_characteristics;
698 
699  if (s->chromal != -1)
700  frame->chroma_location = (int)s->dst_format.chroma_location + 1;
701 }
702 
703 static int filter_slice(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
704 {
705  ThreadData *td = data;
706  int ret = 0;
707  int p;
708  int need_gb;
709  ZScaleContext *s = ctx->priv;
710  zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
711  zimg_image_buffer dst_buf = { ZIMG_API_VERSION };
712  const int out_slice_start = s->out_slice_start[job_nr];
713 
714  /* create zimg filter graphs for each thread
715  only if not created earlier or there is some change in frame parameters */
716  need_gb = compare_zimg_image_formats(&s->src_format, &s->src_format_tmp) ||
717  compare_zimg_image_formats(&s->dst_format, &s->dst_format_tmp) ||
718  compare_zimg_graph_builder_params(&s->params, &s->params_tmp);
719  if(td->desc->flags & AV_PIX_FMT_FLAG_ALPHA && td->odesc->flags & AV_PIX_FMT_FLAG_ALPHA)
720  need_gb = need_gb || compare_zimg_image_formats(&s->alpha_src_format, &s->alpha_src_format_tmp) ||
721  compare_zimg_image_formats(&s->alpha_dst_format, &s->alpha_dst_format_tmp) ||
722  compare_zimg_graph_builder_params(&s->alpha_params, &s->alpha_params_tmp);
723 
724  if (need_gb){
725  ret = graphs_build(td->in, td->out, td->desc, td->odesc, ctx, job_nr, n_jobs);
726  if (ret < 0)
727  return print_zimg_error(ctx);
728  }
729  for (int i = 0; i < 3; i++) {
730  const int vsamp = i >= 1 ? td->odesc->log2_chroma_h : 0;
731 
732  p = td->desc->comp[i].plane;
733 
734  src_buf.plane[i].data = td->in->data[p];
735  src_buf.plane[i].stride = td->in->linesize[p];
736  src_buf.plane[i].mask = -1;
737 
738  p = td->odesc->comp[i].plane;
739  dst_buf.plane[i].data = td->out->data[p] + td->out->linesize[p] * (out_slice_start >> vsamp);
740  dst_buf.plane[i].stride = td->out->linesize[p];
741  dst_buf.plane[i].mask = -1;
742  }
743  if (!s->graph[job_nr])
744  return AVERROR(EINVAL);
745  ret = zimg_filter_graph_process(s->graph[job_nr], &src_buf, &dst_buf, s->tmp[job_nr], 0, 0, 0, 0);
746  if (ret)
747  return print_zimg_error(ctx);
748 
749  if (td->desc->flags & AV_PIX_FMT_FLAG_ALPHA && td->odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
750  src_buf.plane[0].data = td->in->data[3];
751  src_buf.plane[0].stride = td->in->linesize[3];
752  src_buf.plane[0].mask = -1;
753 
754  dst_buf.plane[0].data = td->out->data[3] + td->out->linesize[3] * out_slice_start;
755  dst_buf.plane[0].stride = td->out->linesize[3];
756  dst_buf.plane[0].mask = -1;
757 
758  if (!s->alpha_graph[job_nr])
759  return AVERROR(EINVAL);
760  ret = zimg_filter_graph_process(s->alpha_graph[job_nr], &src_buf, &dst_buf, s->tmp[job_nr], 0, 0, 0, 0);
761  if (ret)
762  return print_zimg_error(ctx);
763  }
764  return 0;
765 }
766 
767 static int filter_frame(AVFilterLink *link, AVFrame *in)
768 {
769  AVFilterContext *ctx = link->dst;
770  ZScaleContext *s = ctx->priv;
771  AVFilterLink *outlink = ctx->outputs[0];
772  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(link->format);
773  const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format);
774  char buf[32];
775  int ret = 0;
776  AVFrame *out = NULL;
777  ThreadData td;
778 
779  //we need to use this filter if something is different for an input and output only
780  //otherwise - just copy the input frame to the output
781  if ((link->format != outlink->format) ||
782  (link->w != outlink->w) ||
783  (link->h != outlink->h) ||
784  s->first_time ||
785  (s->src_format.chroma_location != s->dst_format.chroma_location) ||
786  (s->src_format.color_family !=s->dst_format.color_family) ||
787  (s->src_format.color_primaries !=s->dst_format.color_primaries) ||
788  (s->src_format.depth !=s->dst_format.depth) ||
789  (s->src_format.matrix_coefficients !=s->dst_format.matrix_coefficients) ||
790  (s->src_format.field_parity !=s->dst_format.field_parity) ||
791  (s->src_format.pixel_range !=s->dst_format.pixel_range) ||
792  (s->src_format.pixel_type !=s->dst_format.pixel_type) ||
793  (s->src_format.transfer_characteristics !=s->dst_format.transfer_characteristics)
794  ){
795  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
796  if (!out) {
797  ret = AVERROR(ENOMEM);
798  goto fail;
799  }
800 
801  if ((ret = realign_frame(odesc, &out, 0)) < 0)
802  goto fail;
803 
804  av_frame_copy_props(out, in);
805 
806  if ((ret = realign_frame(desc, &in, 1)) < 0)
807  goto fail;
808 
809  snprintf(buf, sizeof(buf)-1, "%d", outlink->w);
810  av_opt_set(s, "w", buf, 0);
811  snprintf(buf, sizeof(buf)-1, "%d", outlink->h);
812  av_opt_set(s, "h", buf, 0);
813 
814  link->dst->inputs[0]->format = in->format;
815  link->dst->inputs[0]->w = in->width;
816  link->dst->inputs[0]->h = in->height;
817 
818  s->nb_threads = av_clip(FFMIN(ff_filter_get_nb_threads(ctx), FFMIN(link->h, outlink->h) / MIN_TILESIZE), 1, MAX_THREADS);
819  s->in_colorspace = in->colorspace;
820  s->in_trc = in->color_trc;
821  s->in_primaries = in->color_primaries;
822  s->in_range = in->color_range;
823  s->out_colorspace = out->colorspace;
824  s->out_trc = out->color_trc;
825  s->out_primaries = out->color_primaries;
826  s->out_range = out->color_range;
827 
828  slice_params(s, out->height, in->height);
829 
830  zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
831  zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
832  zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
833 
834  format_init(&s->src_format, in, desc, s->colorspace_in,
835  s->primaries_in, s->trc_in, s->range_in, s->chromal_in);
836  format_init(&s->dst_format, out, odesc, s->colorspace,
837  s->primaries, s->trc, s->range, s->chromal);
838  s->first_time = 0;
839 
840  s->params.dither_type = s->dither;
841  s->params.cpu_type = ZIMG_CPU_AUTO_64B;
842  s->params.resample_filter = s->filter;
843  s->params.resample_filter_uv = s->filter;
844  s->params.nominal_peak_luminance = s->nominal_peak_luminance;
845  s->params.allow_approximate_gamma = s->approximate_gamma;
846  s->params.filter_param_a = s->params.filter_param_a_uv = s->param_a;
847  s->params.filter_param_b = s->params.filter_param_b_uv = s->param_b;
848 
849  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
850  zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
851  zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
852  zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
853 
854  s->alpha_params.dither_type = s->dither;
855  s->alpha_params.cpu_type = ZIMG_CPU_AUTO_64B;
856  s->alpha_params.resample_filter = s->filter;
857 
858  s->alpha_src_format.width = in->width;
859  s->alpha_src_format.height = in->height;
860  s->alpha_src_format.depth = desc->comp[0].depth;
861  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;
862  s->alpha_src_format.color_family = ZIMG_COLOR_GREY;
863 
864  s->alpha_dst_format.depth = odesc->comp[0].depth;
865  s->alpha_dst_format.pixel_type = (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
866  s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
867  }
868 
869  update_output_color_information(s, out);
870  av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
871  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
872  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
873  INT_MAX);
874 
875  td.in = in;
876  td.out = out;
877  td.desc = desc;
878  td.odesc = odesc;
879 
880  memset(s->jobs_ret, 0, s->nb_threads * sizeof(*s->jobs_ret));
881  ret = ff_filter_execute(ctx, filter_slice, &td, s->jobs_ret, s->nb_threads);
882  for (int i = 0; ret >= 0 && i < s->nb_threads; i++)
883  if (s->jobs_ret[i] < 0)
884  ret = s->jobs_ret[i];
885  if (ret < 0) {
886  av_frame_free(&in);
887  av_frame_free(&out);
888  return ret;
889  }
890 
891  s->src_format_tmp = s->src_format;
892  s->dst_format_tmp = s->dst_format;
893  s->params_tmp = s->params;
894  if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
895  s->alpha_src_format_tmp = s->alpha_src_format;
896  s->alpha_dst_format_tmp = s->alpha_dst_format;
897  s->alpha_params_tmp = s->alpha_params;
898  }
899 
900  if ((!(desc->flags & AV_PIX_FMT_FLAG_ALPHA)) && (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) ){
901  int x, y;
902  if (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) {
903  for (y = 0; y < out->height; y++) {
904  const ptrdiff_t row = y * out->linesize[3];
905  for (x = 0; x < out->width; x++) {
906  AV_WN32(out->data[3] + x * odesc->comp[3].step + row,
907  av_float2int(1.0f));
908  }
909  }
910  } else if (s->dst_format.depth == 8) {
911  for (y = 0; y < outlink->h; y++)
912  memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w);
913  } else {
914  const uint16_t max = (1 << s->dst_format.depth) - 1;
915  for (y = 0; y < outlink->h; y++) {
916  const ptrdiff_t row = y * out->linesize[3];
917  for (x = 0; x < out->width; x++)
918  AV_WN16(out->data[3] + x * odesc->comp[3].step + row, max);
919  }
920  }
921  }
922  } else {
923  /*no need for any filtering */
924  return ff_filter_frame(outlink, in);
925  }
926 fail:
927  av_frame_free(&in);
928  if (ret) {
929  av_frame_free(&out);
930  return ret;
931  }
932 
933  return ff_filter_frame(outlink, out);
934 }
935 
936 static av_cold void uninit(AVFilterContext *ctx)
937 {
938  ZScaleContext *s = ctx->priv;
939 
940  for (int i = 0; i < s->nb_threads; i++) {
941  av_freep(&s->tmp[i]);
942  if (s->graph[i]) {
943  zimg_filter_graph_free(s->graph[i]);
944  s->graph[i] = NULL;
945  }
946  if (s->alpha_graph[i]) {
947  zimg_filter_graph_free(s->alpha_graph[i]);
948  s->alpha_graph[i] = NULL;
949  }
950  }
951 }
952 
953 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
954  char *res, int res_len, int flags)
955 {
956  ZScaleContext *s = ctx->priv;
957  int ret;
958 
959  if ( !strcmp(cmd, "width") || !strcmp(cmd, "w")
960  || !strcmp(cmd, "height") || !strcmp(cmd, "h")) {
961 
962  int old_w = s->w;
963  int old_h = s->h;
964  AVFilterLink *outlink = ctx->outputs[0];
965 
966  av_opt_set(s, cmd, args, 0);
967  if ((ret = config_props(outlink)) < 0) {
968  s->w = old_w;
969  s->h = old_h;
970  }
971  } else
972  ret = AVERROR(ENOSYS);
973 
974  return ret;
975 }
976 
977 #define OFFSET(x) offsetof(ZScaleContext, x)
978 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
979 #define TFLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
980 
981 static const AVOption zscale_options[] = {
982  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
983  { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
984  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
985  { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = TFLAGS },
986  { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
987  { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
988  { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
989  { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
990  { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, "dither" },
991  { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, "dither" },
992  { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, "dither" },
993  { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, "dither" },
994  { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
995  { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
996  { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, "filter" },
997  { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, "filter" },
998  { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, "filter" },
999  { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, "filter" },
1000  { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, "filter" },
1001  { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, "filter" },
1002  { "out_range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1003  { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1004  { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1005  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
1006  { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
1007  { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
1008  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
1009  { "tv", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
1010  { "pc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
1011  { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1012  { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1013  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "primaries" },
1014  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
1015  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
1016  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
1017  { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
1018  { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
1019  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
1020  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
1021  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_M}, 0, 0, FLAGS, "primaries" },
1022  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_BG}, 0, 0, FLAGS, "primaries" },
1023  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
1024  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
1025  { "film", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_FILM}, 0, 0, FLAGS, "primaries" },
1026  { "bt2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
1027  { "smpte428", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST428}, 0, 0, FLAGS, "primaries" },
1028  { "smpte431", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST431_2}, 0, 0, FLAGS, "primaries" },
1029  { "smpte432", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST432_1}, 0, 0, FLAGS, "primaries" },
1030  { "jedec-p22", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" },
1031  { "ebu3213", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" },
1032  { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1033  { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1034  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "transfer" },
1035  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
1036  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
1037  { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
1038  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
1039  { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
1040  { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
1041  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
1042  { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_M}, 0, 0, FLAGS, "transfer" },
1043  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_BG}, 0, 0, FLAGS, "transfer" },
1044  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
1045  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_240M}, 0, 0, FLAGS, "transfer" },
1046  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
1047  { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
1048  { "log100", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_100}, 0, 0, FLAGS, "transfer" },
1049  { "log316", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_316}, 0, 0, FLAGS, "transfer" },
1050  { "bt2020-10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
1051  { "bt2020-12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
1052  { "smpte2084", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ST2084}, 0, 0, FLAGS, "transfer" },
1053  { "iec61966-2-4", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_4},0, 0, FLAGS, "transfer" },
1054  { "iec61966-2-1", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_1},0, 0, FLAGS, "transfer" },
1055  { "arib-std-b67", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ARIB_B67}, 0, 0, FLAGS, "transfer" },
1056  { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1057  { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1058  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "matrix" },
1059  { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
1060  { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
1061  { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
1062  { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
1063  { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
1064  { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
1065  { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
1066  { "gbr", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_RGB}, 0, 0, FLAGS, "matrix" },
1067  { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
1068  { "fcc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_FCC}, 0, 0, FLAGS, "matrix" },
1069  { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
1070  { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
1071  { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_240M}, 0, 0, FLAGS, "matrix" },
1072  { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, "matrix" },
1073  { "bt2020nc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
1074  { "bt2020c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
1075  { "chroma-derived-nc",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL}, 0, 0, FLAGS, "matrix" },
1076  { "chroma-derived-c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_CL}, 0, 0, FLAGS, "matrix" },
1077  { "ictcp", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_ICTCP}, 0, 0, FLAGS, "matrix" },
1078  { "in_range", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1079  { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1080  { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
1081  { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1082  { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" },
1083  { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1084  { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" },
1085  { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1086  { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" },
1087  { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1088  { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1089  { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "chroma" },
1090  { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, "chroma" },
1091  { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, "chroma" },
1092  { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, "chroma" },
1093  { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, "chroma" },
1094  { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, "chroma" },
1095  { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, "chroma" },
1096  { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1097  { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
1098  { "npl", "set nominal peak luminance", OFFSET(nominal_peak_luminance), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, 0, DBL_MAX, FLAGS },
1099  { "agamma", "allow approximate gamma", OFFSET(approximate_gamma), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
1100  { "param_a", "parameter A, which is parameter \"b\" for bicubic, "
1101  "and the number of filter taps for lanczos", OFFSET(param_a), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
1102  { "param_b", "parameter B, which is parameter \"c\" for bicubic", OFFSET(param_b), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, -DBL_MAX, DBL_MAX, FLAGS },
1103  { NULL }
1104 };
1105 
1106 AVFILTER_DEFINE_CLASS(zscale);
1107 
1108 static const AVFilterPad avfilter_vf_zscale_inputs[] = {
1109  {
1110  .name = "default",
1111  .type = AVMEDIA_TYPE_VIDEO,
1112  .filter_frame = filter_frame,
1113  },
1114 };
1115 
1116 static const AVFilterPad avfilter_vf_zscale_outputs[] = {
1117  {
1118  .name = "default",
1119  .type = AVMEDIA_TYPE_VIDEO,
1120  .config_props = config_props,
1121  },
1122 };
1123 
1124 const AVFilter ff_vf_zscale = {
1125  .name = "zscale",
1126  .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."),
1127  .init = init,
1128  .priv_size = sizeof(ZScaleContext),
1129  .priv_class = &zscale_class,
1130  .uninit = uninit,
1131  FILTER_INPUTS(avfilter_vf_zscale_inputs),
1132  FILTER_OUTPUTS(avfilter_vf_zscale_outputs),
1133  FILTER_QUERY_FUNC(query_formats),
1134  .process_command = process_command,
1135  .flags = AVFILTER_FLAG_SLICE_THREADS,
1136 };
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:108
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:512
AVFrame::color_trc
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:660
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:491
AVFrame::color_range
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:656
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
av_clip
#define av_clip
Definition: common.h:96
ZScaleContext::jobs_ret
int jobs_ret[MAX_THREADS]
Definition: vf_zscale.c:122
ZScaleContext::range_in
int range_in
Definition: vf_zscale.c:101
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:401
ZScaleContext::colorspace_in
int colorspace_in
Definition: vf_zscale.c:98
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:570
convert_range_from_zimg
static enum AVColorRange convert_range_from_zimg(enum zimg_pixel_range_e color_range)
Definition: vf_zscale.c:505
ThreadData::odesc
const AVPixFmtDescriptor * odesc
Definition: vf_zscale.c:144
out
FILE * out
Definition: movenc.c:54
av_frame_get_buffer
int av_frame_get_buffer(AVFrame *frame, int align)
Allocate new buffer(s) for audio or video data.
Definition: frame.c:243
ZScaleContext::out_slice_end
int out_slice_end[MAX_THREADS]
Definition: vf_zscale.c:126
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_zscale.c:936
ZScaleContext::params_tmp
zimg_graph_builder_params params_tmp
Definition: vf_zscale.c:133
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:978
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2964
AVCOL_TRC_LINEAR
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:579
AVCHROMA_LOC_BOTTOM
@ AVCHROMA_LOC_BOTTOM
Definition: pixfmt.h:699
ZScaleContext::h_expr
char * h_expr
height expression string
Definition: vf_zscale.c:110
ZScaleContext::filter
int filter
Definition: vf_zscale.c:92
ZIMG_ALIGNMENT
#define ZIMG_ALIGNMENT
Definition: vf_zscale.c:47
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
AV_PIX_FMT_FLAG_FLOAT
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
Definition: pixdesc.h:158
AVFrame::color_primaries
enum AVColorPrimaries color_primaries
Definition: frame.h:658
ZScaleContext::alpha_params_tmp
zimg_graph_builder_params alpha_params_tmp
Definition: vf_zscale.c:133
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:100
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:504
AVFrame::colorspace
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:667
ZScaleContext::chromal
int chromal
Definition: vf_zscale.c:97
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:340
VAR_VSUB
@ VAR_VSUB
Definition: vf_zscale.c:75
pixdesc.h
TFLAGS
#define TFLAGS
Definition: vf_zscale.c:979
var_names
static const char *const var_names[]
Definition: vf_zscale.c:51
AVFrame::width
int width
Definition: frame.h:412
config_props
static int config_props(AVFilterLink *outlink)
Definition: vf_zscale.c:244
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:511
w
uint8_t w
Definition: llviddspenc.c:38
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:673
ZScaleContext::colorspace
int colorspace
Definition: vf_zscale.c:93
AVComponentDescriptor::depth
int depth
Number of bits in the component.
Definition: pixdesc.h:57
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:506
ZScaleContext::alpha_src_format
zimg_image_format alpha_src_format
Definition: vf_zscale.c:129
AVOption
AVOption.
Definition: opt.h:251
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:573
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:169
data
const char data[16]
Definition: mxf.c:148
AVComponentDescriptor::step
int step
Number of elements between 2 horizontally consecutive pixels.
Definition: pixdesc.h:40
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:468
AVCOL_PRI_JEDEC_P22
@ AVCOL_PRI_JEDEC_P22
Definition: pixfmt.h:562
format_init
static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc, int colorspace, int primaries, int transfer, int range, int location)
Definition: vf_zscale.c:561
ThreadData::desc
const AVPixFmtDescriptor * desc
Definition: vf_tonemap.c:175
AVCOL_SPC_RGB
@ AVCOL_SPC_RGB
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB), YZX and ST 428-1
Definition: pixfmt.h:600
float.h
AVCOL_TRC_BT2020_12
@ AVCOL_TRC_BT2020_12
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:586
pixel_fmts
static enum AVPixelFormat pixel_fmts[]
Definition: vf_amplify.c:51
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
max
#define max(a, b)
Definition: cuda_runtime.h:33
mathematics.h
filter
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
Definition: filter_design.txt:228
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
zscale_options
static const AVOption zscale_options[]
Definition: vf_zscale.c:981
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:545
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
av_float2int
static av_always_inline uint32_t av_float2int(float f)
Reinterpret a float as a 32-bit integer.
Definition: intfloat.h:50
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:526
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:153
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:507
ZScaleContext::h
int h
Definition: vf_zscale.c:90
AVCOL_SPC_BT2020_CL
@ AVCOL_SPC_BT2020_CL
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:611
ZScaleContext::out_chromal
enum AVChromaLocation in_chromal out_chromal
Definition: vf_zscale.c:140
ZScaleContext::primaries
int primaries
Definition: vf_zscale.c:95
ZScaleContext::nb_threads
int nb_threads
Definition: vf_zscale.c:121
ZScaleContext::in_h_chr_pos
int in_h_chr_pos
Definition: vf_zscale.c:114
formats.h
ZScaleContext::param_b
double param_b
Definition: vf_zscale.c:107
VAR_OUT_W
@ VAR_OUT_W
Definition: vf_zscale.c:69
primaries
enum AVColorPrimaries primaries
Definition: mediacodec_wrapper.c:2664
AVFrame::chroma_location
enum AVChromaLocation chroma_location
Definition: frame.h:669
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3004
AVCOL_SPC_BT470BG
@ AVCOL_SPC_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
Definition: pixfmt.h:605
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:503
convert_primaries
static int convert_primaries(enum AVColorPrimaries color_primaries)
Definition: vf_zscale.c:462
ZScaleContext::out_slice_start
int out_slice_start[MAX_THREADS]
Definition: vf_zscale.c:125
ZScaleContext::dst_format
zimg_image_format dst_format
Definition: vf_zscale.c:128
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:486
AVCOL_TRC_IEC61966_2_1
@ AVCOL_TRC_IEC61966_2_1
IEC 61966-2-1 (sRGB or sYCC)
Definition: pixfmt.h:584
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
ZScaleContext::src_format
zimg_image_format src_format
Definition: vf_zscale.c:128
fail
#define fail()
Definition: checkasm.h:138
ZScaleContext::out_primaries
enum AVColorPrimaries in_primaries out_primaries
Definition: vf_zscale.c:138
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:484
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:513
ZScaleContext::range
int range
Definition: vf_zscale.c:96
VAR_OW
@ VAR_OW
Definition: vf_zscale.c:69
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:466
AVCOL_TRC_GAMMA28
@ AVCOL_TRC_GAMMA28
also ITU-R BT470BG
Definition: pixfmt.h:576
convert_matrix
static int convert_matrix(enum AVColorSpace colorspace)
Definition: vf_zscale.c:392
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_zscale.c:196
ZScaleContext::alpha_params
zimg_graph_builder_params alpha_params
Definition: vf_zscale.c:132
av_opt_set
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:487
AVCOL_TRC_LOG_SQRT
@ AVCOL_TRC_LOG_SQRT
"Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"
Definition: pixfmt.h:581
av_reduce
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
AVRational::num
int num
Numerator.
Definition: rational.h:59
AVCOL_TRC_GAMMA22
@ AVCOL_TRC_GAMMA22
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:575
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:47
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_zscale.c:953
VAR_SAR
@ VAR_SAR
Definition: vf_zscale.c:72
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:88
compare_zimg_graph_builder_params
static int compare_zimg_graph_builder_params(zimg_graph_builder_params *parm0, zimg_graph_builder_params *parm1)
Definition: vf_zscale.c:538
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:471
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:276
aligned
static int aligned(int val)
Definition: dashdec.c:170
ZScaleContext::tmp
void * tmp[MAX_THREADS]
Definition: vf_zscale.c:120
AV_LOG_TRACE
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:206
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:480
ZScaleContext::graph
zimg_filter_graph * graph[MAX_THREADS]
Definition: vf_zscale.c:134
ZScaleContext::alpha_dst_format_tmp
zimg_image_format alpha_dst_format_tmp
Definition: vf_zscale.c:131
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:488
ZScaleContext::param_a
double param_a
Definition: vf_zscale.c:106
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:198
AVCHROMA_LOC_TOP
@ AVCHROMA_LOC_TOP
Definition: pixfmt.h:697
AV_PIX_FMT_GBRAP14
#define AV_PIX_FMT_GBRAP14
Definition: pixfmt.h:490
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:489
ZScaleContext
Definition: vf_zscale.c:81
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
graphs_build
static int graphs_build(AVFrame *in, AVFrame *out, const AVPixFmtDescriptor *desc, const AVPixFmtDescriptor *out_desc, AVFilterContext *ctx, int job_nr, int n_jobs)
Definition: vf_zscale.c:578
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:481
ZScaleContext::force_original_aspect_ratio
int force_original_aspect_ratio
Definition: vf_zscale.c:118
format
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample format(the sample packing is implied by the sample format) and sample rate. The lists are not just lists
AVCOL_SPC_SMPTE170M
@ AVCOL_SPC_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
Definition: pixfmt.h:606
approximate_gamma
static const double approximate_gamma[AVCOL_TRC_NB]
Definition: csp.c:135
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:227
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:617
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:1979
ZScaleContext::src_format_tmp
zimg_image_format src_format_tmp
Definition: vf_zscale.c:130
var_name
var_name
Definition: noise_bsf.c:46
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:510
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:465
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:479
AV_PIX_FMT_FLAG_ALPHA
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:147
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AVCOL_PRI_SMPTE428
@ AVCOL_PRI_SMPTE428
SMPTE ST 428-1 (CIE 1931 XYZ)
Definition: pixfmt.h:557
ZScaleContext::first_time
int first_time
Definition: vf_zscale.c:117
AVPixFmtDescriptor::log2_chroma_w
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:80
VAR_A
@ VAR_A
Definition: vf_zscale.c:71
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
ZScaleContext::dst_format_tmp
zimg_image_format dst_format_tmp
Definition: vf_zscale.c:130
AVCOL_PRI_SMPTE240M
@ AVCOL_PRI_SMPTE240M
identical to above, also called "SMPTE C" even though it uses D65
Definition: pixfmt.h:554
color_range
color_range
Definition: vf_selectivecolor.c:43
ZScaleContext::in_slice_start
double in_slice_start[MAX_THREADS]
Definition: vf_zscale.c:123
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:548
NAN
#define NAN
Definition: mathematics.h:115
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:192
link
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a link
Definition: filter_design.txt:23
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
AVCOL_SPC_CHROMA_DERIVED_CL
@ AVCOL_SPC_CHROMA_DERIVED_CL
Chromaticity-derived constant luminance system.
Definition: pixfmt.h:614
AVCOL_PRI_BT470BG
@ AVCOL_PRI_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:552
frame
static AVFrame * frame
Definition: demux_decode.c:54
AVCOL_PRI_SMPTE170M
@ AVCOL_PRI_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:553
if
if(ret)
Definition: filter_design.txt:179
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:487
ZScaleContext::params
zimg_graph_builder_params params
Definition: vf_zscale.c:132
print_zimg_error
static int print_zimg_error(AVFilterContext *ctx)
Definition: vf_zscale.c:362
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:736
ZScaleContext::out_range
enum AVColorRange in_range out_range
Definition: vf_zscale.c:139
realign_frame
static int realign_frame(const AVPixFmtDescriptor *desc, AVFrame **frame, int needs_copy)
Definition: vf_zscale.c:646
FLAGS
#define FLAGS
Definition: vf_zscale.c:978
AVCHROMA_LOC_LEFT
@ AVCHROMA_LOC_LEFT
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:694
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
AVCHROMA_LOC_TOPLEFT
@ AVCHROMA_LOC_TOPLEFT
ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2.
Definition: pixfmt.h:696
AVCOL_TRC_IEC61966_2_4
@ AVCOL_TRC_IEC61966_2_4
IEC 61966-2-4.
Definition: pixfmt.h:582
isnan
#define isnan(x)
Definition: libm.h:340
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
compare_zimg_image_formats
static int compare_zimg_image_formats(zimg_image_format *img_fmt0, zimg_image_format *img_fmt1)
Definition: vf_zscale.c:517
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:405
AVCOL_PRI_BT709
@ AVCOL_PRI_BT709
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP 177 Annex B
Definition: pixfmt.h:547
parseutils.h
slice_params
static void slice_params(ZScaleContext *s, int out_h, int in_h)
Definition: vf_zscale.c:229
convert_range
static int convert_range(enum AVColorRange color_range)
Definition: vf_zscale.c:493
ZScaleContext::out_v_chr_pos
int out_v_chr_pos
Definition: vf_zscale.c:113
double
double
Definition: af_crystalizer.c:131
AVCOL_TRC_BT2020_10
@ AVCOL_TRC_BT2020_10
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:585
AVCOL_SPC_YCGCO
@ AVCOL_SPC_YCGCO
used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16
Definition: pixfmt.h:608
ZScaleContext::dither
int dither
Definition: vf_zscale.c:91
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:469
update_output_color_information
static void update_output_color_information(ZScaleContext *s, AVFrame *frame)
Definition: vf_zscale.c:685
ff_vf_zscale
const AVFilter ff_vf_zscale
Definition: vf_zscale.c:1124
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:483
AVPixFmtDescriptor::flags
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:94
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:639
AVCOL_PRI_BT2020
@ AVCOL_PRI_BT2020
ITU-R BT2020.
Definition: pixfmt.h:556
color_primaries
static const AVColorPrimariesDesc color_primaries[AVCOL_PRI_NB]
Definition: csp.c:76
AVCOL_TRC_SMPTE2084
@ AVCOL_TRC_SMPTE2084
SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems.
Definition: pixfmt.h:587
AVCOL_PRI_SMPTE431
@ AVCOL_PRI_SMPTE431
SMPTE ST 431-2 (2011) / DCI P3.
Definition: pixfmt.h:559
ZScaleContext::in_v_chr_pos
int in_v_chr_pos
Definition: vf_zscale.c:115
eval.h
f
f
Definition: af_crystalizer.c:121
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:106
av_expr_parse_and_eval
int av_expr_parse_and_eval(double *d, const char *s, const char *const *const_names, const double *const_values, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), void *opaque, int log_offset, void *log_ctx)
Parse and evaluate an expression.
Definition: eval.c:776
AVCOL_TRC_SMPTE240M
@ AVCOL_TRC_SMPTE240M
Definition: pixfmt.h:578
AVCOL_PRI_FILM
@ AVCOL_PRI_FILM
colour filters using Illuminant C
Definition: pixfmt.h:555
AV_WN32
#define AV_WN32(p, v)
Definition: intreadwrite.h:374
MAX_THREADS
#define MAX_THREADS
Definition: vf_zscale.c:49
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:136
av_frame_copy
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
Definition: frame.c:899
AVCOL_TRC_LOG
@ AVCOL_TRC_LOG
"Logarithmic transfer characteristic (100:1 range)"
Definition: pixfmt.h:580
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:498
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:473
size
int size
Definition: twinvq_data.h:10344
ZScaleContext::primaries_in
int primaries_in
Definition: vf_zscale.c:100
ZScaleContext::approximate_gamma
int approximate_gamma
Definition: vf_zscale.c:105
ZScaleContext::alpha_dst_format
zimg_image_format alpha_dst_format
Definition: vf_zscale.c:129
VAR_OHSUB
@ VAR_OHSUB
Definition: vf_zscale.c:76
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:475
filter_slice
static int filter_slice(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
Definition: vf_zscale.c:703
AVCHROMA_LOC_UNSPECIFIED
@ AVCHROMA_LOC_UNSPECIFIED
Definition: pixfmt.h:693
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:427
range
enum AVColorRange range
Definition: mediacodec_wrapper.c:2646
VAR_IN_W
@ VAR_IN_W
Definition: vf_zscale.c:67
avfilter_vf_zscale_outputs
static const AVFilterPad avfilter_vf_zscale_outputs[]
Definition: vf_zscale.c:1116
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:167
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:508
AVERROR_EXTERNAL
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:59
av_parse_video_size
int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
Parse str and put in width_ptr and height_ptr the detected values.
Definition: parseutils.c:150
VARS_NB
@ VARS_NB
Definition: vf_zscale.c:78
AVCOL_SPC_CHROMA_DERIVED_NCL
@ AVCOL_SPC_CHROMA_DERIVED_NCL
Chromaticity-derived non-constant luminance system.
Definition: pixfmt.h:613
VAR_HSUB
@ VAR_HSUB
Definition: vf_zscale.c:74
AVCOL_TRC_BT709
@ AVCOL_TRC_BT709
also ITU-R BT1361
Definition: pixfmt.h:572
internal.h
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:692
AVCOL_SPC_SMPTE240M
@ AVCOL_SPC_SMPTE240M
derived from 170M primaries and D65 white point, 170M is derived from BT470 System M's primaries
Definition: pixfmt.h:607
ZScaleContext::in_slice_end
double in_slice_end[MAX_THREADS]
Definition: vf_zscale.c:124
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:255
AVCOL_SPC_BT2020_NCL
@ AVCOL_SPC_BT2020_NCL
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:610
filter_frame
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_zscale.c:767
transfer
enum AVColorTransferCharacteristic transfer
Definition: mediacodec_wrapper.c:2674
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:485
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:599
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:786
ZScaleContext::out_colorspace
enum AVColorSpace in_colorspace out_colorspace
Definition: vf_zscale.c:136
ThreadData
Used for passing data between threads.
Definition: dsddec.c:69
VAR_IW
@ VAR_IW
Definition: vf_zscale.c:67
planes
static const struct @363 planes[]
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
ZScaleContext::w
int w
New dimensions.
Definition: vf_zscale.c:90
ZScaleContext::trc
int trc
Definition: vf_zscale.c:94
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
VAR_OH
@ VAR_OH
Definition: vf_zscale.c:70
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:53
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:602
av_rescale
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition: mathematics.c:129
ZScaleContext::chromal_in
int chromal_in
Definition: vf_zscale.c:102
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:656
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:262
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:467
AVFilter
Filter definition.
Definition: avfilter.h:166
VAR_IH
@ VAR_IH
Definition: vf_zscale.c:68
AVCOL_PRI_BT470M
@ AVCOL_PRI_BT470M
also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:550
ret
ret
Definition: filter_design.txt:187
ZScaleContext::trc_in
int trc_in
Definition: vf_zscale.c:99
ZScaleContext::size_str
char * size_str
Definition: vf_zscale.c:103
FFSWAP
#define FFSWAP(type, a, b)
Definition: macros.h:52
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:505
convert_chroma_location
static int convert_chroma_location(enum AVChromaLocation chroma_location)
Definition: vf_zscale.c:372
AVFrame::sample_aspect_ratio
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:447
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:472
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:477
AVFrame::height
int height
Definition: frame.h:412
AVCOL_TRC_ARIB_STD_B67
@ AVCOL_TRC_ARIB_STD_B67
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:591
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_zscale.c:148
AVCHROMA_LOC_CENTER
@ AVCHROMA_LOC_CENTER
MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0.
Definition: pixfmt.h:695
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AVCOL_SPC_FCC
@ AVCOL_SPC_FCC
FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:604
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:509
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:499
VAR_IN_H
@ VAR_IN_H
Definition: vf_zscale.c:68
VAR_OVSUB
@ VAR_OVSUB
Definition: vf_zscale.c:77
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:105
AVCOL_TRC_SMPTE170M
@ AVCOL_TRC_SMPTE170M
also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
Definition: pixfmt.h:577
av_mul_q
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
OFFSET
#define OFFSET(x)
Definition: vf_zscale.c:977
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
ZScaleContext::alpha_graph
zimg_filter_graph * alpha_graph[MAX_THREADS]
Definition: vf_zscale.c:134
AVFilterContext
An instance of a filter.
Definition: avfilter.h:397
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
desc
const char * desc
Definition: libsvtav1.c:83
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
MIN_TILESIZE
#define MIN_TILESIZE
Definition: vf_zscale.c:48
convert_trc
static int convert_trc(enum AVColorTransferCharacteristic color_trc)
Definition: vf_zscale.c:425
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
AVCOL_PRI_SMPTE432
@ AVCOL_PRI_SMPTE432
SMPTE ST 432-1 (2010) / P3 D65 / Display P3.
Definition: pixfmt.h:560
ZScaleContext::alpha_src_format_tmp
zimg_image_format alpha_src_format_tmp
Definition: vf_zscale.c:131
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:193
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
VAR_DAR
@ VAR_DAR
Definition: vf_zscale.c:73
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:474
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(zscale)
ZScaleContext::nominal_peak_luminance
double nominal_peak_luminance
Definition: vf_zscale.c:104
ZScaleContext::out_trc
enum AVColorTransferCharacteristic in_trc out_trc
Definition: vf_zscale.c:137
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:478
avstring.h
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
ff_filter_execute
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: internal.h:144
AVCOL_SPC_BT709
@ AVCOL_SPC_BT709
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / derived in SMPTE RP 177 Annex B
Definition: pixfmt.h:601
AVColorRange
AVColorRange
Visual content value range.
Definition: pixfmt.h:638
int
int
Definition: ffmpeg_filter.c:368
AVCOL_SPC_ICTCP
@ AVCOL_SPC_ICTCP
ITU-R BT.2100-0, ICtCp.
Definition: pixfmt.h:615
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
snprintf
#define snprintf
Definition: snprintf.h:34
VAR_OUT_H
@ VAR_OUT_H
Definition: vf_zscale.c:70
ZScaleContext::out_h_chr_pos
int out_h_chr_pos
Definition: vf_zscale.c:112
AVCHROMA_LOC_BOTTOMLEFT
@ AVCHROMA_LOC_BOTTOMLEFT
Definition: pixfmt.h:698
AVPixFmtDescriptor::log2_chroma_h
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:89
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:476
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2884
ZScaleContext::w_expr
char * w_expr
width expression string
Definition: vf_zscale.c:109
avfilter_vf_zscale_inputs
static const AVFilterPad avfilter_vf_zscale_inputs[]
Definition: vf_zscale.c:1108
AV_WN16
#define AV_WN16(p, v)
Definition: intreadwrite.h:370
dither
static const uint8_t dither[8][8]
Definition: vf_fspp.c:60
Generated on Thu Apr 18 2024 22:42:31 for FFmpeg by   doxygen 1.8.17