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vf_selectivecolor.c
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1 /*
2  * Copyright (c) 2015-2016 Clément Bœsch <u pkh me>
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  * @todo
23  * - use integers so it can be made bitexact and a FATE test can be added
24  */
25 
26 #include "libavutil/avassert.h"
27 #include "libavutil/file.h"
28 #include "libavutil/intreadwrite.h"
29 #include "libavutil/opt.h"
30 #include "libavutil/pixdesc.h"
31 #include "avfilter.h"
32 #include "drawutils.h"
33 #include "formats.h"
34 #include "internal.h"
35 #include "video.h"
36 
37 #define R 0
38 #define G 1
39 #define B 2
40 #define A 3
41 
43  // WARNING: do NOT reorder (see parse_psfile())
54 };
55 
60 };
61 
62 static const char *color_names[NB_RANGES] = {
63  "red", "yellow", "green", "cyan", "blue", "magenta", "white", "neutral", "black"
64 };
65 
66 typedef int (*get_adjust_range_func)(int r, int g, int b, int min_val, int max_val);
67 
68 struct process_range {
69  int range_id;
70  uint32_t mask;
72 };
73 
74 typedef struct ThreadData {
75  AVFrame *in, *out;
76 } ThreadData;
77 
78 typedef struct {
79  const AVClass *class;
81  char *opt_cmyk_adjust[NB_RANGES];
82  float cmyk_adjust[NB_RANGES][4];
83  struct process_range process_ranges[NB_RANGES]; // color ranges to process
85  char *psfile;
86  uint8_t rgba_map[4];
87  int is_16bit;
88  int step;
90 
91 #define OFFSET(x) offsetof(SelectiveColorContext, x)
92 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
93 #define RANGE_OPTION(color_name, range) \
94  { color_name"s", "adjust "color_name" regions", OFFSET(opt_cmyk_adjust[range]), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS }
95 
96 static const AVOption selectivecolor_options[] = {
97  { "correction_method", "select correction method", OFFSET(correction_method), AV_OPT_TYPE_INT, {.i64 = CORRECTION_METHOD_ABSOLUTE}, 0, NB_CORRECTION_METHODS-1, FLAGS, "correction_method" },
98  { "absolute", NULL, 0, AV_OPT_TYPE_CONST, {.i64=CORRECTION_METHOD_ABSOLUTE}, INT_MIN, INT_MAX, FLAGS, "correction_method" },
99  { "relative", NULL, 0, AV_OPT_TYPE_CONST, {.i64=CORRECTION_METHOD_RELATIVE}, INT_MIN, INT_MAX, FLAGS, "correction_method" },
100  RANGE_OPTION("red", RANGE_REDS),
101  RANGE_OPTION("yellow", RANGE_YELLOWS),
102  RANGE_OPTION("green", RANGE_GREENS),
103  RANGE_OPTION("cyan", RANGE_CYANS),
104  RANGE_OPTION("blue", RANGE_BLUES),
105  RANGE_OPTION("magenta", RANGE_MAGENTAS),
106  RANGE_OPTION("white", RANGE_WHITES),
107  RANGE_OPTION("neutral", RANGE_NEUTRALS),
108  RANGE_OPTION("black", RANGE_BLACKS),
109  { "psfile", "set Photoshop selectivecolor file name", OFFSET(psfile), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
110  { NULL }
111 };
112 
113 AVFILTER_DEFINE_CLASS(selectivecolor);
114 
115 static inline int get_mid_val(int r, int g, int b)
116 {
117  if ((r < g && r > b) || (r < b && r > g)) return r;
118  if ((g < r && g > b) || (g < b && g > r)) return g;
119  if ((b < r && b > g) || (b < g && b > r)) return b;
120  return -1;
121 }
122 
123 static int get_rgb_adjust_range(int r, int g, int b, int min_val, int max_val)
124 {
125  // max - mid
126  const int mid_val = get_mid_val(r, g, b);
127  if (mid_val == -1) {
128  // XXX: can be simplified
129  if ((r != min_val && g == min_val && b == min_val) ||
130  (r == min_val && g != min_val && b == min_val) ||
131  (r == min_val && g == min_val && b != min_val))
132  return max_val - min_val;
133  return 0;
134  }
135  return max_val - mid_val;
136 }
137 
138 static int get_cmy_adjust_range(int r, int g, int b, int min_val, int max_val)
139 {
140  // mid - min
141  const int mid_val = get_mid_val(r, g, b);
142  if (mid_val == -1) {
143  // XXX: refactor with rgb
144  if ((r != max_val && g == max_val && b == max_val) ||
145  (r == max_val && g != max_val && b == max_val) ||
146  (r == max_val && g == max_val && b != max_val))
147  return max_val - min_val;
148  return 0;
149  }
150  return mid_val - min_val;
151 }
152 
153 #define DECLARE_ADJUST_RANGE_FUNCS(nbits) \
154 static int get_neutrals_adjust_range##nbits(int r, int g, int b, int min_val, int max_val) \
155 { \
156  /* 1 - (|max-0.5| + |min-0.5|) */ \
157  return (((1<<nbits)-1)*2 - ( abs((max_val<<1) - ((1<<nbits)-1)) \
158  + abs((min_val<<1) - ((1<<nbits)-1))) + 1) >> 1; \
159 } \
160  \
161 static int get_whites_adjust_range##nbits(int r, int g, int b, int min_val, int max_val) \
162 { \
163  /* (min - 0.5) * 2 */ \
164  return (min_val<<1) - ((1<<nbits)-1); \
165 } \
166  \
167 static int get_blacks_adjust_range##nbits(int r, int g, int b, int min_val, int max_val) \
168 { \
169  /* (0.5 - max) * 2 */ \
170  return ((1<<nbits)-1) - (max_val<<1); \
171 } \
172 
175 
177 {
178  const float *cmyk = s->cmyk_adjust[range_id];
179 
180  /* If the color range has user settings, register the color range
181  * as "to be processed" */
182  if (cmyk[0] || cmyk[1] || cmyk[2] || cmyk[3]) {
183  struct process_range *pr = &s->process_ranges[s->nb_process_ranges++];
184 
185  if (cmyk[0] < -1.0 || cmyk[0] > 1.0 ||
186  cmyk[1] < -1.0 || cmyk[1] > 1.0 ||
187  cmyk[2] < -1.0 || cmyk[2] > 1.0 ||
188  cmyk[3] < -1.0 || cmyk[3] > 1.0) {
189  av_log(s, AV_LOG_ERROR, "Invalid %s adjustments (%g %g %g %g). "
190  "Settings must be set in [-1;1] range\n",
191  color_names[range_id], cmyk[0], cmyk[1], cmyk[2], cmyk[3]);
192  return AVERROR(EINVAL);
193  }
194 
195  pr->range_id = range_id;
196  pr->mask = 1 << range_id;
199  else if (!s->is_16bit && (pr->mask & 1<<RANGE_WHITES)) pr->get_adjust_range = get_whites_adjust_range8;
200  else if (!s->is_16bit && (pr->mask & 1<<RANGE_NEUTRALS)) pr->get_adjust_range = get_neutrals_adjust_range8;
201  else if (!s->is_16bit && (pr->mask & 1<<RANGE_BLACKS)) pr->get_adjust_range = get_blacks_adjust_range8;
202  else if ( s->is_16bit && (pr->mask & 1<<RANGE_WHITES)) pr->get_adjust_range = get_whites_adjust_range16;
203  else if ( s->is_16bit && (pr->mask & 1<<RANGE_NEUTRALS)) pr->get_adjust_range = get_neutrals_adjust_range16;
204  else if ( s->is_16bit && (pr->mask & 1<<RANGE_BLACKS)) pr->get_adjust_range = get_blacks_adjust_range16;
205  else
206  av_assert0(0);
207  }
208  return 0;
209 }
210 
211 static int parse_psfile(AVFilterContext *ctx, const char *fname)
212 {
213  int16_t val;
214  int ret, i, version;
215  uint8_t *buf;
216  size_t size;
217  SelectiveColorContext *s = ctx->priv;
218 
219  ret = av_file_map(fname, &buf, &size, 0, NULL);
220  if (ret < 0)
221  return ret;
222 
223 #define READ16(dst) do { \
224  if (size < 2) { \
225  ret = AVERROR_INVALIDDATA; \
226  goto end; \
227  } \
228  dst = AV_RB16(buf); \
229  buf += 2; \
230  size -= 2; \
231 } while (0)
232 
233  READ16(version);
234  if (version != 1)
235  av_log(s, AV_LOG_WARNING, "Unsupported selective color file version %d, "
236  "the settings might not be loaded properly\n", version);
237 
239 
240  // 1st CMYK entry is reserved/unused
241  for (i = 0; i < FF_ARRAY_ELEMS(s->cmyk_adjust[0]); i++) {
242  READ16(val);
243  if (val)
244  av_log(s, AV_LOG_WARNING, "%c value of first CMYK entry is not 0 "
245  "but %d\n", "CMYK"[i], val);
246  }
247 
248  for (i = 0; i < FF_ARRAY_ELEMS(s->cmyk_adjust); i++) {
249  int k;
250  for (k = 0; k < FF_ARRAY_ELEMS(s->cmyk_adjust[0]); k++) {
251  READ16(val);
252  s->cmyk_adjust[i][k] = val / 100.;
253  }
254  ret = register_range(s, i);
255  if (ret < 0)
256  goto end;
257  }
258 
259 end:
260  av_file_unmap(buf, size);
261  return ret;
262 }
263 
264 static int config_input(AVFilterLink *inlink)
265 {
266  int i, ret;
267  AVFilterContext *ctx = inlink->dst;
268  SelectiveColorContext *s = ctx->priv;
270 
271  s->is_16bit = desc->comp[0].depth > 8;
272  s->step = av_get_padded_bits_per_pixel(desc) >> (3 + s->is_16bit);
273 
274  ret = ff_fill_rgba_map(s->rgba_map, inlink->format);
275  if (ret < 0)
276  return ret;
277 
278  /* If the following conditions are not met, it will cause trouble while
279  * parsing the PS file */
280  av_assert0(FF_ARRAY_ELEMS(s->cmyk_adjust) == 10 - 1);
282 
283  if (s->psfile) {
284  ret = parse_psfile(ctx, s->psfile);
285  if (ret < 0)
286  return ret;
287  } else {
288  for (i = 0; i < FF_ARRAY_ELEMS(s->opt_cmyk_adjust); i++) {
289  const char *opt_cmyk_adjust = s->opt_cmyk_adjust[i];
290 
291  if (opt_cmyk_adjust) {
292  float *cmyk = s->cmyk_adjust[i];
293 
294  sscanf(s->opt_cmyk_adjust[i], "%f %f %f %f", cmyk, cmyk+1, cmyk+2, cmyk+3);
295  ret = register_range(s, i);
296  if (ret < 0)
297  return ret;
298  }
299  }
300  }
301 
302  av_log(s, AV_LOG_VERBOSE, "Adjustments:%s\n", s->nb_process_ranges ? "" : " none");
303  for (i = 0; i < s->nb_process_ranges; i++) {
304  const struct process_range *pr = &s->process_ranges[i];
305  const float *cmyk = s->cmyk_adjust[pr->range_id];
306 
307  av_log(s, AV_LOG_VERBOSE, "%8ss: C=%6g M=%6g Y=%6g K=%6g\n",
308  color_names[pr->range_id], cmyk[0], cmyk[1], cmyk[2], cmyk[3]);
309  }
310 
311  return 0;
312 }
313 
315 {
316  static const enum AVPixelFormat pix_fmts[] = {
325  };
326  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
327  if (!fmts_list)
328  return AVERROR(ENOMEM);
329  return ff_set_common_formats(ctx, fmts_list);
330 }
331 
332 static inline int comp_adjust(int adjust_range, float value, float adjust, float k, int correction_method)
333 {
334  const float min = -value;
335  const float max = 1. - value;
336  float res = (-1. - adjust) * k - adjust;
337  if (correction_method == CORRECTION_METHOD_RELATIVE)
338  res *= max;
339  return lrint(av_clipf(res, min, max) * adjust_range);
340 }
341 
342 #define DECLARE_SELECTIVE_COLOR_FUNC(nbits) \
343 static inline int selective_color_##nbits(AVFilterContext *ctx, ThreadData *td, \
344  int jobnr, int nb_jobs, int direct, int correction_method) \
345 { \
346  int i, x, y; \
347  const AVFrame *in = td->in; \
348  AVFrame *out = td->out; \
349  const SelectiveColorContext *s = ctx->priv; \
350  const int height = in->height; \
351  const int width = in->width; \
352  const int slice_start = (height * jobnr ) / nb_jobs; \
353  const int slice_end = (height * (jobnr+1)) / nb_jobs; \
354  const int dst_linesize = out->linesize[0]; \
355  const int src_linesize = in->linesize[0]; \
356  const uint8_t roffset = s->rgba_map[R]; \
357  const uint8_t goffset = s->rgba_map[G]; \
358  const uint8_t boffset = s->rgba_map[B]; \
359  const uint8_t aoffset = s->rgba_map[A]; \
360  \
361  for (y = slice_start; y < slice_end; y++) { \
362  uint##nbits##_t *dst = ( uint##nbits##_t *)(out->data[0] + y * dst_linesize); \
363  const uint##nbits##_t *src = (const uint##nbits##_t *)( in->data[0] + y * src_linesize); \
364  \
365  for (x = 0; x < width * s->step; x += s->step) { \
366  const int r = src[x + roffset]; \
367  const int g = src[x + goffset]; \
368  const int b = src[x + boffset]; \
369  const int min_color = FFMIN3(r, g, b); \
370  const int max_color = FFMAX3(r, g, b); \
371  const int is_white = (r > 1<<(nbits-1) && g > 1<<(nbits-1) && b > 1<<(nbits-1)); \
372  const int is_neutral = (r || g || b) && \
373  r != (1<<nbits)-1 && g != (1<<nbits)-1 && b != (1<<nbits)-1; \
374  const int is_black = (r < 1<<(nbits-1) && g < 1<<(nbits-1) && b < 1<<(nbits-1)); \
375  const uint32_t range_flag = (r == max_color) << RANGE_REDS \
376  | (r == min_color) << RANGE_CYANS \
377  | (g == max_color) << RANGE_GREENS \
378  | (g == min_color) << RANGE_MAGENTAS \
379  | (b == max_color) << RANGE_BLUES \
380  | (b == min_color) << RANGE_YELLOWS \
381  | is_white << RANGE_WHITES \
382  | is_neutral << RANGE_NEUTRALS \
383  | is_black << RANGE_BLACKS; \
384  \
385  const float rnorm = r * (1.f / ((1<<nbits)-1)); \
386  const float gnorm = g * (1.f / ((1<<nbits)-1)); \
387  const float bnorm = b * (1.f / ((1<<nbits)-1)); \
388  int adjust_r = 0, adjust_g = 0, adjust_b = 0; \
389  \
390  for (i = 0; i < s->nb_process_ranges; i++) { \
391  const struct process_range *pr = &s->process_ranges[i]; \
392  \
393  if (range_flag & pr->mask) { \
394  const int adjust_range = pr->get_adjust_range(r, g, b, min_color, max_color); \
395  \
396  if (adjust_range > 0) { \
397  const float *cmyk_adjust = s->cmyk_adjust[pr->range_id]; \
398  const float adj_c = cmyk_adjust[0]; \
399  const float adj_m = cmyk_adjust[1]; \
400  const float adj_y = cmyk_adjust[2]; \
401  const float k = cmyk_adjust[3]; \
402  \
403  adjust_r += comp_adjust(adjust_range, rnorm, adj_c, k, correction_method); \
404  adjust_g += comp_adjust(adjust_range, gnorm, adj_m, k, correction_method); \
405  adjust_b += comp_adjust(adjust_range, bnorm, adj_y, k, correction_method); \
406  } \
407  } \
408  } \
409  \
410  if (!direct || adjust_r || adjust_g || adjust_b) { \
411  dst[x + roffset] = av_clip_uint##nbits(r + adjust_r); \
412  dst[x + goffset] = av_clip_uint##nbits(g + adjust_g); \
413  dst[x + boffset] = av_clip_uint##nbits(b + adjust_b); \
414  if (!direct && s->step == 4) \
415  dst[x + aoffset] = src[x + aoffset]; \
416  } \
417  } \
418  } \
419  return 0; \
420 }
421 
422 #define DEF_SELECTIVE_COLOR_FUNC(name, direct, correction_method, nbits) \
423 static int selective_color_##name##_##nbits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
424 { \
425  return selective_color_##nbits(ctx, arg, jobnr, nb_jobs, direct, correction_method); \
426 }
427 
428 #define DEF_SELECTIVE_COLOR_FUNCS(nbits) \
429 DECLARE_SELECTIVE_COLOR_FUNC(nbits) \
430 DEF_SELECTIVE_COLOR_FUNC(indirect_absolute, 0, CORRECTION_METHOD_ABSOLUTE, nbits) \
431 DEF_SELECTIVE_COLOR_FUNC(indirect_relative, 0, CORRECTION_METHOD_RELATIVE, nbits) \
432 DEF_SELECTIVE_COLOR_FUNC( direct_absolute, 1, CORRECTION_METHOD_ABSOLUTE, nbits) \
433 DEF_SELECTIVE_COLOR_FUNC( direct_relative, 1, CORRECTION_METHOD_RELATIVE, nbits)
434 
437 
438 typedef int (*selective_color_func_type)(AVFilterContext *ctx, void *td, int jobnr, int nb_jobs);
439 
440 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
441 {
442  AVFilterContext *ctx = inlink->dst;
443  AVFilterLink *outlink = ctx->outputs[0];
444  int direct;
445  AVFrame *out;
446  ThreadData td;
447  const SelectiveColorContext *s = ctx->priv;
448  static const selective_color_func_type funcs[2][2][2] = {
449  {
450  {selective_color_indirect_absolute_8, selective_color_indirect_relative_8},
451  {selective_color_direct_absolute_8, selective_color_direct_relative_8},
452  },{
453  {selective_color_indirect_absolute_16, selective_color_indirect_relative_16},
454  {selective_color_direct_absolute_16, selective_color_direct_relative_16},
455  }
456  };
457 
458  if (av_frame_is_writable(in)) {
459  direct = 1;
460  out = in;
461  } else {
462  direct = 0;
463  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
464  if (!out) {
465  av_frame_free(&in);
466  return AVERROR(ENOMEM);
467  }
468  av_frame_copy_props(out, in);
469  }
470 
471  td.in = in;
472  td.out = out;
473  ctx->internal->execute(ctx, funcs[s->is_16bit][direct][s->correction_method],
474  &td, NULL, FFMIN(inlink->h, ff_filter_get_nb_threads(ctx)));
475 
476  if (!direct)
477  av_frame_free(&in);
478  return ff_filter_frame(outlink, out);
479 }
480 
482  {
483  .name = "default",
484  .type = AVMEDIA_TYPE_VIDEO,
485  .filter_frame = filter_frame,
486  .config_props = config_input,
487  },
488  { NULL }
489 };
490 
492  {
493  .name = "default",
494  .type = AVMEDIA_TYPE_VIDEO,
495  },
496  { NULL }
497 };
498 
500  .name = "selectivecolor",
501  .description = NULL_IF_CONFIG_SMALL("Apply CMYK adjustments to specific color ranges."),
502  .priv_size = sizeof(SelectiveColorContext),
504  .inputs = selectivecolor_inputs,
505  .outputs = selectivecolor_outputs,
506  .priv_class = &selectivecolor_class,
508 };
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:771
const char * s
Definition: avisynth_c.h:768
AVFrame * out
Definition: af_sofalizer.c:585
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2266
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
AVOption.
Definition: opt.h:245
correction_method
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
get_adjust_range_func get_adjust_range
Main libavfilter public API header.
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:64
const char * g
Definition: vf_curves.c:112
const char * desc
Definition: nvenc.c:101
static int get_rgb_adjust_range(int r, int g, int b, int min_val, int max_val)
#define AV_PIX_FMT_RGBA64
Definition: pixfmt.h:331
static int get_mid_val(int r, int g, int b)
AVFilter ff_vf_selectivecolor
const char * b
Definition: vf_curves.c:113
int(* selective_color_func_type)(AVFilterContext *ctx, void *td, int jobnr, int nb_jobs)
#define AV_PIX_FMT_BGRA64
Definition: pixfmt.h:336
color_range
int version
Definition: avisynth_c.h:766
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
Definition: pixfmt.h:253
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:76
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125
static const AVFilterPad selectivecolor_inputs[]
const char * name
Pad name.
Definition: internal.h:59
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
struct process_range process_ranges[NB_RANGES]
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1189
AVFrame * in
Definition: af_sofalizer.c:585
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:252
AVOptions.
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
static int register_range(SelectiveColorContext *s, int range_id)
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:95
Misc file utilities.
char * opt_cmyk_adjust[NB_RANGES]
#define AV_PIX_FMT_BGR48
Definition: pixfmt.h:332
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
ptrdiff_t size
Definition: opengl_enc.c:101
CheckasmFunc * funcs
Definition: checkasm.c:180
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:53
#define OFFSET(x)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
void av_file_unmap(uint8_t *bufptr, size_t size)
Unmap or free the buffer bufptr created by av_file_map().
Definition: file.c:129
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568
#define td
Definition: regdef.h:70
int av_file_map(const char *filename, uint8_t **bufptr, size_t *size, int log_offset, void *log_ctx)
Read the file with name filename, and put its content in a newly allocated buffer or map it with mmap...
Definition: file.c:49
AVFILTER_DEFINE_CLASS(selectivecolor)
static int config_input(AVFilterLink *inlink)
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:158
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:96
const char * r
Definition: vf_curves.c:111
void * priv
private data for use by the filter
Definition: avfilter.h:322
int av_get_padded_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel for the pixel format described by pixdesc, including any padding ...
Definition: pixdesc.c:2231
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:327
simple assert() macros that are a bit more flexible than ISO C assert().
tuple adjust
Definition: normalize.py:25
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:93
#define RANGE_OPTION(color_name, range)
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:94
static const AVFilterPad selectivecolor_outputs[]
#define DEF_SELECTIVE_COLOR_FUNCS(nbits)
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:786
#define FFMIN(a, b)
Definition: common.h:96
int(* get_adjust_range_func)(int r, int g, int b, int min_val, int max_val)
static int get_cmy_adjust_range(int r, int g, int b, int min_val, int max_val)
GLsizei GLboolean const GLfloat * value
Definition: opengl_enc.c:109
#define FLAGS
AVFormatContext * ctx
Definition: movenc.c:48
#define DECLARE_ADJUST_RANGE_FUNCS(nbits)
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:65
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
#define FF_ARRAY_ELEMS(a)
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition: drawutils.c:35
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
misc drawing utilities
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:529
float cmyk_adjust[NB_RANGES][4]
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
#define READ16(dst)
static const char * color_names[NB_RANGES]
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
void * buf
Definition: avisynth_c.h:690
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
static const AVOption selectivecolor_options[]
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:254
const char * name
Filter name.
Definition: avfilter.h:148
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:319
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:347
static int flags
Definition: cpu.c:47
static int parse_psfile(AVFilterContext *ctx, const char *fname)
static int query_formats(AVFilterContext *ctx)
avfilter_execute_func * execute
Definition: internal.h:153
static int comp_adjust(int adjust_range, float value, float adjust, float k, int correction_method)
A list of supported formats for one end of a filter link.
Definition: formats.h:64
#define lrint
Definition: tablegen.h:53
An instance of a filter.
Definition: avfilter.h:307
FILE * out
Definition: movenc.c:54
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
Definition: pixfmt.h:251
float min
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:589