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vf_selectivecolor.c
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1 /*
2  * Copyright (c) 2015 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  * - >8 bit support
25  */
26 
27 #include "libavutil/avassert.h"
28 #include "libavutil/file.h"
29 #include "libavutil/intreadwrite.h"
30 #include "libavutil/opt.h"
31 #include "avfilter.h"
32 #include "formats.h"
33 #include "internal.h"
34 #include "video.h"
35 
37  // WARNING: do NOT reorder (see parse_psfile())
48 };
49 
54 };
55 
56 static const char *color_names[NB_RANGES] = {
57  "red", "yellow", "green", "cyan", "blue", "magenta", "white", "neutral", "black"
58 };
59 
60 typedef int (*get_adjust_range_func)(int r, int g, int b, int min_val, int max_val);
61 
62 struct process_range {
63  int range_id;
64  uint32_t mask;
66 };
67 
68 typedef struct ThreadData {
69  AVFrame *in, *out;
70 } ThreadData;
71 
72 typedef struct {
73  const AVClass *class;
75  char *opt_cmyk_adjust[NB_RANGES];
76  float cmyk_adjust[NB_RANGES][4];
77  struct process_range process_ranges[NB_RANGES]; // color ranges to process
79  char *psfile;
81 
82 #define OFFSET(x) offsetof(SelectiveColorContext, x)
83 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
84 #define RANGE_OPTION(color_name, range) \
85  { color_name"s", "adjust "color_name" regions", OFFSET(opt_cmyk_adjust[range]), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS }
86 
87 static const AVOption selectivecolor_options[] = {
88  { "correction_method", "select correction method", OFFSET(correction_method), AV_OPT_TYPE_INT, {.i64 = CORRECTION_METHOD_ABSOLUTE}, 0, NB_CORRECTION_METHODS-1, FLAGS, "correction_method" },
89  { "absolute", NULL, 0, AV_OPT_TYPE_CONST, {.i64=CORRECTION_METHOD_ABSOLUTE}, INT_MIN, INT_MAX, FLAGS, "correction_method" },
90  { "relative", NULL, 0, AV_OPT_TYPE_CONST, {.i64=CORRECTION_METHOD_RELATIVE}, INT_MIN, INT_MAX, FLAGS, "correction_method" },
91  RANGE_OPTION("red", RANGE_REDS),
92  RANGE_OPTION("yellow", RANGE_YELLOWS),
93  RANGE_OPTION("green", RANGE_GREENS),
94  RANGE_OPTION("cyan", RANGE_CYANS),
95  RANGE_OPTION("blue", RANGE_BLUES),
96  RANGE_OPTION("magenta", RANGE_MAGENTAS),
97  RANGE_OPTION("white", RANGE_WHITES),
98  RANGE_OPTION("neutral", RANGE_NEUTRALS),
99  RANGE_OPTION("black", RANGE_BLACKS),
100  { "psfile", "set Photoshop selectivecolor file name", OFFSET(psfile), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
101  { NULL }
102 };
103 
104 AVFILTER_DEFINE_CLASS(selectivecolor);
105 
106 static inline int get_mid_val(int r, int g, int b)
107 {
108  if ((r < g && r > b) || (r < b && r > g)) return r;
109  if ((g < r && g > b) || (g < b && g > r)) return g;
110  if ((b < r && b > g) || (b < g && b > r)) return b;
111  return -1;
112 }
113 
114 static int get_rgb_adjust_range(int r, int g, int b, int min_val, int max_val)
115 {
116  // max - mid
117  const int mid_val = get_mid_val(r, g, b);
118  if (mid_val == -1) {
119  // XXX: can be simplified
120  if ((r != min_val && g == min_val && b == min_val) ||
121  (r == min_val && g != min_val && b == min_val) ||
122  (r == min_val && g == min_val && b != min_val))
123  return max_val - min_val;
124  return 0;
125  }
126  return max_val - mid_val;
127 }
128 
129 static int get_cmy_adjust_range(int r, int g, int b, int min_val, int max_val)
130 {
131  // mid - min
132  const int mid_val = get_mid_val(r, g, b);
133  if (mid_val == -1) {
134  // XXX: refactor with rgb
135  if ((r != max_val && g == max_val && b == max_val) ||
136  (r == max_val && g != max_val && b == max_val) ||
137  (r == max_val && g == max_val && b != max_val))
138  return max_val - min_val;
139  return 0;
140  }
141  return mid_val - min_val;
142 }
143 
144 static int get_neutrals_adjust_range(int r, int g, int b, int min_val, int max_val)
145 {
146  // 1 - (|max-0.5| + |min-0.5|)
147  return (255*2 - (abs((max_val<<1) - 255) + abs((min_val<<1) - 255)) + 1) >> 1;
148 }
149 
150 static int get_whites_adjust_range(int r, int g, int b, int min_val, int max_val)
151 {
152  // (min - 0.5) * 2
153  return (min_val<<1) - 255;
154 }
155 
156 static int get_blacks_adjust_range(int r, int g, int b, int min_val, int max_val)
157 {
158  // (0.5 - max) * 2
159  return 255 - (max_val<<1);
160 }
161 
163 {
164  const float *cmyk = s->cmyk_adjust[range_id];
165 
166  /* If the color range has user settings, register the color range
167  * as "to be processed" */
168  if (cmyk[0] || cmyk[1] || cmyk[2] || cmyk[3]) {
169  struct process_range *pr = &s->process_ranges[s->nb_process_ranges++];
170 
171  if (cmyk[0] < -1.0 || cmyk[0] > 1.0 ||
172  cmyk[1] < -1.0 || cmyk[1] > 1.0 ||
173  cmyk[2] < -1.0 || cmyk[2] > 1.0 ||
174  cmyk[3] < -1.0 || cmyk[3] > 1.0) {
175  av_log(s, AV_LOG_ERROR, "Invalid %s adjustments (%g %g %g %g). "
176  "Settings must be set in [-1;1] range\n",
177  color_names[range_id], cmyk[0], cmyk[1], cmyk[2], cmyk[3]);
178  return AVERROR(EINVAL);
179  }
180 
181  pr->range_id = range_id;
182  pr->mask = 1 << range_id;
188  else
189  av_assert0(0);
190  }
191  return 0;
192 }
193 
194 static int parse_psfile(AVFilterContext *ctx, const char *fname)
195 {
196  int16_t val;
197  int ret, i, version;
198  uint8_t *buf;
199  size_t size;
200  SelectiveColorContext *s = ctx->priv;
201 
202  ret = av_file_map(fname, &buf, &size, 0, NULL);
203  if (ret < 0)
204  return ret;
205 
206 #define READ16(dst) do { \
207  if (size < 2) { \
208  ret = AVERROR_INVALIDDATA; \
209  goto end; \
210  } \
211  dst = AV_RB16(buf); \
212  buf += 2; \
213  size -= 2; \
214 } while (0)
215 
216  READ16(version);
217  if (version != 1)
218  av_log(s, AV_LOG_WARNING, "Unsupported selective color file version %d, "
219  "the settings might not be loaded properly\n", version);
220 
222 
223  // 1st CMYK entry is reserved/unused
224  for (i = 0; i < FF_ARRAY_ELEMS(s->cmyk_adjust[0]); i++) {
225  READ16(val);
226  if (val)
227  av_log(s, AV_LOG_WARNING, "%c value of first CMYK entry is not 0 "
228  "but %d\n", "CMYK"[i], val);
229  }
230 
231  for (i = 0; i < FF_ARRAY_ELEMS(s->cmyk_adjust); i++) {
232  int k;
233  for (k = 0; k < FF_ARRAY_ELEMS(s->cmyk_adjust[0]); k++) {
234  READ16(val);
235  s->cmyk_adjust[i][k] = val / 100.;
236  }
237  ret = register_range(s, i);
238  if (ret < 0)
239  goto end;
240  }
241 
242 end:
243  av_file_unmap(buf, size);
244  return ret;
245 }
246 
248 {
249  int i, ret;
250  SelectiveColorContext *s = ctx->priv;
251 
252  /* If the following conditions are not met, it will cause trouble while
253  * parsing the PS file */
254  av_assert0(FF_ARRAY_ELEMS(s->cmyk_adjust) == 10 - 1);
256 
257  if (s->psfile) {
258  ret = parse_psfile(ctx, s->psfile);
259  if (ret < 0)
260  return ret;
261  } else {
262  for (i = 0; i < FF_ARRAY_ELEMS(s->opt_cmyk_adjust); i++) {
263  const char *opt_cmyk_adjust = s->opt_cmyk_adjust[i];
264 
265  if (opt_cmyk_adjust) {
266  float *cmyk = s->cmyk_adjust[i];
267 
268  sscanf(s->opt_cmyk_adjust[i], "%f %f %f %f", cmyk, cmyk+1, cmyk+2, cmyk+3);
269  ret = register_range(s, i);
270  if (ret < 0)
271  return ret;
272  }
273  }
274  }
275 
276  av_log(s, AV_LOG_VERBOSE, "Adjustments:%s\n", s->nb_process_ranges ? "" : " none");
277  for (i = 0; i < s->nb_process_ranges; i++) {
278  const struct process_range *pr = &s->process_ranges[i];
279  const float *cmyk = s->cmyk_adjust[pr->range_id];
280 
281  av_log(s, AV_LOG_VERBOSE, "%8ss: C=%6g M=%6g Y=%6g K=%6g\n",
282  color_names[pr->range_id], cmyk[0], cmyk[1], cmyk[2], cmyk[3]);
283  }
284 
285  return 0;
286 }
287 
289 {
291  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
292  if (!fmts_list)
293  return AVERROR(ENOMEM);
294  return ff_set_common_formats(ctx, fmts_list);
295 }
296 
297 static inline int comp_adjust(int adjust_range, float value, float adjust, float k, int correction_method)
298 {
299  const float min = -value;
300  const float max = 1. - value;
301  float res = (-1. - adjust) * k - adjust;
302  if (correction_method == CORRECTION_METHOD_RELATIVE)
303  res *= max;
304  return lrint(av_clipf(res, min, max) * adjust_range);
305 }
306 
308  int jobnr, int nb_jobs, int direct, int correction_method)
309 {
310  int i, x, y;
311  const AVFrame *in = td->in;
312  AVFrame *out = td->out;
313  const SelectiveColorContext *s = ctx->priv;
314  const int height = in->height;
315  const int width = in->width;
316  const int slice_start = (height * jobnr ) / nb_jobs;
317  const int slice_end = (height * (jobnr+1)) / nb_jobs;
318  const int dst_linesize = out->linesize[0];
319  const int src_linesize = in->linesize[0];
320  uint8_t *dst = out->data[0] + slice_start * dst_linesize;
321  const uint8_t *src = in->data[0] + slice_start * src_linesize;
322 
323  for (y = slice_start; y < slice_end; y++) {
324  const uint32_t *src32 = (const uint32_t *)src;
325  uint32_t *dst32 = (uint32_t *)dst;
326 
327  for (x = 0; x < width; x++) {
328  const uint32_t color = *src32++;
329  const int r = color >> 16 & 0xff;
330  const int g = color >> 8 & 0xff;
331  const int b = color & 0xff;
332  const int min_color = FFMIN3(r, g, b);
333  const int max_color = FFMAX3(r, g, b);
334  const uint32_t range_flag = (r == max_color) << RANGE_REDS
335  | (r == min_color) << RANGE_CYANS
336  | (g == max_color) << RANGE_GREENS
337  | (g == min_color) << RANGE_MAGENTAS
338  | (b == max_color) << RANGE_BLUES
339  | (b == min_color) << RANGE_YELLOWS
340  | (r > 128 && g > 128 && b > 128) << RANGE_WHITES
341  | (color && (color & 0xffffff) != 0xffffff) << RANGE_NEUTRALS
342  | (r < 128 && g < 128 && b < 128) << RANGE_BLACKS;
343 
344  const float rnorm = r / 255.;
345  const float gnorm = g / 255.;
346  const float bnorm = b / 255.;
347  int adjust_r = 0, adjust_g = 0, adjust_b = 0;
348 
349  for (i = 0; i < s->nb_process_ranges; i++) {
350  const struct process_range *pr = &s->process_ranges[i];
351 
352  if (range_flag & pr->mask) {
353  const int adjust_range = pr->get_adjust_range(r, g, b, min_color, max_color);
354 
355  if (adjust_range > 0) {
356  const float *cmyk_adjust = s->cmyk_adjust[pr->range_id];
357  const float adj_c = cmyk_adjust[0];
358  const float adj_m = cmyk_adjust[1];
359  const float adj_y = cmyk_adjust[2];
360  const float k = cmyk_adjust[3];
361 
362  adjust_r += comp_adjust(adjust_range, rnorm, adj_c, k, correction_method);
363  adjust_g += comp_adjust(adjust_range, gnorm, adj_m, k, correction_method);
364  adjust_b += comp_adjust(adjust_range, bnorm, adj_y, k, correction_method);
365  }
366  }
367  }
368 
369  if (!direct || adjust_r || adjust_g || adjust_b)
370  *dst32 = (color & 0xff000000)
371  | av_clip_uint8(r + adjust_r) << 16
372  | av_clip_uint8(g + adjust_g) << 8
373  | av_clip_uint8(b + adjust_b);
374  dst32++;
375  }
376  src += src_linesize;
377  dst += dst_linesize;
378  }
379  return 0;
380 }
381 
382 #define DEF_SELECTIVE_COLOR_FUNC(name, direct, correction_method) \
383 static int selective_color_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
384 { \
385  return selective_color(ctx, arg, jobnr, nb_jobs, direct, correction_method); \
386 }
387 
392 
393 typedef int (*selective_color_func_type)(AVFilterContext *ctx, void *td, int jobnr, int nb_jobs);
394 
395 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
396 {
397  AVFilterContext *ctx = inlink->dst;
398  AVFilterLink *outlink = ctx->outputs[0];
399  int direct;
400  AVFrame *out;
401  ThreadData td;
402  const SelectiveColorContext *s = ctx->priv;
403  static const selective_color_func_type funcs[2][2] = {
404  {selective_color_indirect_absolute, selective_color_indirect_relative},
405  {selective_color_direct_absolute, selective_color_direct_relative},
406  };
407 
408  if (av_frame_is_writable(in)) {
409  direct = 1;
410  out = in;
411  } else {
412  direct = 0;
413  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
414  if (!out) {
415  av_frame_free(&in);
416  return AVERROR(ENOMEM);
417  }
418  av_frame_copy_props(out, in);
419  }
420 
421  td.in = in;
422  td.out = out;
423  ctx->internal->execute(ctx, funcs[direct][s->correction_method], &td, NULL,
424  FFMIN(inlink->h, ctx->graph->nb_threads));
425 
426  if (!direct)
427  av_frame_free(&in);
428  return ff_filter_frame(outlink, out);
429 }
430 
432  {
433  .name = "default",
434  .type = AVMEDIA_TYPE_VIDEO,
435  .filter_frame = filter_frame,
436  },
437  { NULL }
438 };
439 
441  {
442  .name = "default",
443  .type = AVMEDIA_TYPE_VIDEO,
444  },
445  { NULL }
446 };
447 
449  .name = "selectivecolor",
450  .description = NULL_IF_CONFIG_SMALL("Apply CMYK adjustments to specific color ranges."),
451  .priv_size = sizeof(SelectiveColorContext),
452  .init = init,
454  .inputs = selectivecolor_inputs,
455  .outputs = selectivecolor_outputs,
456  .priv_class = &selectivecolor_class,
458 };
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:634
const char * s
Definition: avisynth_c.h:631
AVFrame * out
Definition: af_sofalizer.c:499
static int get_neutrals_adjust_range(int r, int g, int b, int min_val, int max_val)
This structure describes decoded (raw) audio or video data.
Definition: frame.h:181
AVOption.
Definition: opt.h:245
correction_method
AVFormatContext * ctx
Definition: movenc-test.c:48
#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.
static int get_whites_adjust_range(int r, int g, int b, int min_val, int max_val)
const char * g
Definition: vf_curves.c:108
static int get_rgb_adjust_range(int r, int g, int b, int min_val, int max_val)
static int get_mid_val(int r, int g, int b)
AVFilter ff_vf_selectivecolor
const char * b
Definition: vf_curves.c:109
int(* selective_color_func_type)(AVFilterContext *ctx, void *td, int jobnr, int nb_jobs)
static int selective_color(AVFilterContext *ctx, ThreadData *td, int jobnr, int nb_jobs, int direct, int correction_method)
color_range
int version
Definition: avisynth_c.h:629
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
struct AVFilterGraph * graph
filtergraph this filter belongs to
Definition: avfilter.h:321
#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:122
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:1163
AVFrame * in
Definition: af_sofalizer.c:499
uint8_t
#define av_cold
Definition: attributes.h:82
AVOptions.
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
static int register_range(SelectiveColorContext *s, int range_id)
Misc file utilities.
char * opt_cmyk_adjust[NB_RANGES]
int nb_threads
Maximum number of threads used by filters in this graph.
Definition: avfilter.h:788
#define FFMIN3(a, b, c)
Definition: common.h:97
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
ptrdiff_t size
Definition: opengl_enc.c:101
CheckasmFunc * funcs
Definition: checkasm.c:172
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:53
#define OFFSET(x)
int width
width and height of the video frame
Definition: frame.h:230
#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)
#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:154
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
const char * r
Definition: vf_curves.c:107
void * priv
private data for use by the filter
Definition: avfilter.h:319
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:113
simple assert() macros that are a bit more flexible than ISO C assert().
tuple adjust
Definition: normalize.py:25
static int get_blacks_adjust_range(int r, int g, int b, int min_val, int max_val)
#define RANGE_OPTION(color_name, range)
static const AVFilterPad selectivecolor_outputs[]
#define DEF_SELECTIVE_COLOR_FUNC(name, direct, correction_method)
#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
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:385
#define src
Definition: vp9dsp.c:530
#define FF_ARRAY_ELEMS(a)
FILE * out
Definition: movenc-test.c:54
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:375
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:505
float cmyk_adjust[NB_RANGES][4]
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:209
#define AV_PIX_FMT_RGB32
Definition: pixfmt.h:307
#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:553
static av_cold int init(AVFilterContext *ctx)
BYTE int const BYTE int int int height
Definition: avisynth_c.h:676
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:141
static const AVOption selectivecolor_options[]
const char * name
Filter name.
Definition: avfilter.h:145
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:316
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:344
static int flags
Definition: cpu.c:47
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:192
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 slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2094
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:304
int height
Definition: frame.h:230
internal API functions
float min
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:565
#define FFMAX3(a, b, c)
Definition: common.h:95
#define AV_PIX_FMT_0RGB32
Definition: pixfmt.h:311
static int width