FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
vf_colormatrix.c
Go to the documentation of this file.
1 /*
2  * ColorMatrix v2.2 for Avisynth 2.5.x
3  *
4  * Copyright (C) 2006-2007 Kevin Stone
5  *
6  * ColorMatrix 1.x is Copyright (C) Wilbert Dijkhof
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU General Public License as published by the
10  * Free Software Foundation; either version 2 of the License, or (at your
11  * option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful, but
14  * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
16  * License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software Foundation,
20  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * ColorMatrix 2.0 is based on the original ColorMatrix filter by Wilbert
26  * Dijkhof. It adds the ability to convert between any of: Rec.709, FCC,
27  * Rec.601, and SMPTE 240M. It also makes pre and post clipping optional,
28  * adds an option to use scaled or non-scaled coefficients, and more...
29  */
30 
31 #include <float.h>
32 #include "avfilter.h"
33 #include "formats.h"
34 #include "internal.h"
35 #include "video.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/pixdesc.h"
38 #include "libavutil/avstring.h"
39 
40 #define NS(n) ((n) < 0 ? (int)((n)*65536.0-0.5+DBL_EPSILON) : (int)((n)*65536.0+0.5))
41 #define CB(n) av_clip_uint8(n)
42 
43 static const double yuv_coeff[4][3][3] = {
44  { { +0.7152, +0.0722, +0.2126 }, // Rec.709 (0)
45  { -0.3850, +0.5000, -0.1150 },
46  { -0.4540, -0.0460, +0.5000 } },
47  { { +0.5900, +0.1100, +0.3000 }, // FCC (1)
48  { -0.3310, +0.5000, -0.1690 },
49  { -0.4210, -0.0790, +0.5000 } },
50  { { +0.5870, +0.1140, +0.2990 }, // Rec.601 (ITU-R BT.470-2/SMPTE 170M) (2)
51  { -0.3313, +0.5000, -0.1687 },
52  { -0.4187, -0.0813, +0.5000 } },
53  { { +0.7010, +0.0870, +0.2120 }, // SMPTE 240M (3)
54  { -0.3840, +0.5000, -0.1160 },
55  { -0.4450, -0.0550, +0.5000 } },
56 };
57 
58 enum ColorMode {
65 };
66 
67 typedef struct {
68  const AVClass *class;
69  int yuv_convert[16][3][3];
71  int source, dest; ///< ColorMode
72  int mode;
73  int hsub, vsub;
75 
76 typedef struct ThreadData {
77  AVFrame *dst;
78  const AVFrame *src;
79  int c2;
80  int c3;
81  int c4;
82  int c5;
83  int c6;
84  int c7;
85 } ThreadData;
86 
87 #define OFFSET(x) offsetof(ColorMatrixContext, x)
88 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
89 
90 static const AVOption colormatrix_options[] = {
91  { "src", "set source color matrix", OFFSET(source), AV_OPT_TYPE_INT, {.i64=COLOR_MODE_NONE}, COLOR_MODE_NONE, COLOR_MODE_COUNT-1, .flags=FLAGS, .unit="color_mode" },
92  { "dst", "set destination color matrix", OFFSET(dest), AV_OPT_TYPE_INT, {.i64=COLOR_MODE_NONE}, COLOR_MODE_NONE, COLOR_MODE_COUNT-1, .flags=FLAGS, .unit="color_mode" },
93  { "bt709", "set BT.709 colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT709}, .flags=FLAGS, .unit="color_mode" },
94  { "fcc", "set FCC colorspace ", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_FCC}, .flags=FLAGS, .unit="color_mode" },
95  { "bt601", "set BT.601 colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601}, .flags=FLAGS, .unit="color_mode" },
96  { "bt470", "set BT.470 colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601}, .flags=FLAGS, .unit="color_mode" },
97  { "bt470bg", "set BT.470 colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601}, .flags=FLAGS, .unit="color_mode" },
98  { "smpte170m", "set SMTPE-170M colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601}, .flags=FLAGS, .unit="color_mode" },
99  { "smpte240m", "set SMPTE-240M colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_SMPTE240M}, .flags=FLAGS, .unit="color_mode" },
100  { NULL }
101 };
102 
103 AVFILTER_DEFINE_CLASS(colormatrix);
104 
105 #define ma m[0][0]
106 #define mb m[0][1]
107 #define mc m[0][2]
108 #define md m[1][0]
109 #define me m[1][1]
110 #define mf m[1][2]
111 #define mg m[2][0]
112 #define mh m[2][1]
113 #define mi m[2][2]
114 
115 #define ima im[0][0]
116 #define imb im[0][1]
117 #define imc im[0][2]
118 #define imd im[1][0]
119 #define ime im[1][1]
120 #define imf im[1][2]
121 #define img im[2][0]
122 #define imh im[2][1]
123 #define imi im[2][2]
124 
125 static void inverse3x3(double im[3][3], const double m[3][3])
126 {
127  double det = ma * (me * mi - mf * mh) - mb * (md * mi - mf * mg) + mc * (md * mh - me * mg);
128  det = 1.0 / det;
129  ima = det * (me * mi - mf * mh);
130  imb = det * (mc * mh - mb * mi);
131  imc = det * (mb * mf - mc * me);
132  imd = det * (mf * mg - md * mi);
133  ime = det * (ma * mi - mc * mg);
134  imf = det * (mc * md - ma * mf);
135  img = det * (md * mh - me * mg);
136  imh = det * (mb * mg - ma * mh);
137  imi = det * (ma * me - mb * md);
138 }
139 
140 static void solve_coefficients(double cm[3][3], double rgb[3][3], const double yuv[3][3])
141 {
142  int i, j;
143  for (i = 0; i < 3; i++)
144  for (j = 0; j < 3; j++)
145  cm[i][j] = yuv[i][0] * rgb[0][j] + yuv[i][1] * rgb[1][j] + yuv[i][2] * rgb[2][j];
146 }
147 
149 {
150  ColorMatrixContext *color = ctx->priv;
151  double rgb_coeffd[4][3][3];
152  double yuv_convertd[16][3][3];
153  int v = 0;
154  int i, j, k;
155 
156  for (i = 0; i < 4; i++)
157  inverse3x3(rgb_coeffd[i], yuv_coeff[i]);
158  for (i = 0; i < 4; i++) {
159  for (j = 0; j < 4; j++) {
160  solve_coefficients(yuv_convertd[v], rgb_coeffd[i], yuv_coeff[j]);
161  for (k = 0; k < 3; k++) {
162  color->yuv_convert[v][k][0] = NS(yuv_convertd[v][k][0]);
163  color->yuv_convert[v][k][1] = NS(yuv_convertd[v][k][1]);
164  color->yuv_convert[v][k][2] = NS(yuv_convertd[v][k][2]);
165  }
166  if (color->yuv_convert[v][0][0] != 65536 || color->yuv_convert[v][1][0] != 0 ||
167  color->yuv_convert[v][2][0] != 0) {
168  av_log(ctx, AV_LOG_ERROR, "error calculating conversion coefficients\n");
169  }
170  v++;
171  }
172  }
173 }
174 
175 static const char * const color_modes[] = {"bt709", "fcc", "bt601", "smpte240m"};
176 
178 {
179  ColorMatrixContext *color = ctx->priv;
180 
181  if (color->dest == COLOR_MODE_NONE) {
182  av_log(ctx, AV_LOG_ERROR, "Unspecified destination color space\n");
183  return AVERROR(EINVAL);
184  }
185 
186  if (color->source == color->dest) {
187  av_log(ctx, AV_LOG_ERROR, "Source and destination color space must not be identical\n");
188  return AVERROR(EINVAL);
189  }
190 
191  calc_coefficients(ctx);
192 
193  return 0;
194 }
195 
196 static int process_slice_uyvy422(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
197 {
198  const ThreadData *td = arg;
199  const AVFrame *src = td->src;
200  AVFrame *dst = td->dst;
201  const int height = src->height;
202  const int width = src->width*2;
203  const int src_pitch = src->linesize[0];
204  const int dst_pitch = dst->linesize[0];
205  const int slice_start = (height * jobnr ) / nb_jobs;
206  const int slice_end = (height * (jobnr+1)) / nb_jobs;
207  const unsigned char *srcp = src->data[0] + slice_start * src_pitch;
208  unsigned char *dstp = dst->data[0] + slice_start * dst_pitch;
209  const int c2 = td->c2;
210  const int c3 = td->c3;
211  const int c4 = td->c4;
212  const int c5 = td->c5;
213  const int c6 = td->c6;
214  const int c7 = td->c7;
215  int x, y;
216 
217  for (y = slice_start; y < slice_end; y++) {
218  for (x = 0; x < width; x += 4) {
219  const int u = srcp[x + 0] - 128;
220  const int v = srcp[x + 2] - 128;
221  const int uvval = c2 * u + c3 * v + 1081344;
222  dstp[x + 0] = CB((c4 * u + c5 * v + 8421376) >> 16);
223  dstp[x + 1] = CB((65536 * (srcp[x + 1] - 16) + uvval) >> 16);
224  dstp[x + 2] = CB((c6 * u + c7 * v + 8421376) >> 16);
225  dstp[x + 3] = CB((65536 * (srcp[x + 3] - 16) + uvval) >> 16);
226  }
227  srcp += src_pitch;
228  dstp += dst_pitch;
229  }
230 
231  return 0;
232 }
233 
234 static int process_slice_yuv444p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
235 {
236  const ThreadData *td = arg;
237  const AVFrame *src = td->src;
238  AVFrame *dst = td->dst;
239  const int height = src->height;
240  const int width = src->width;
241  const int slice_start = (height * jobnr ) / nb_jobs;
242  const int slice_end = (height * (jobnr+1)) / nb_jobs;
243  const int src_pitchY = src->linesize[0];
244  const int src_pitchUV = src->linesize[1];
245  const unsigned char *srcpU = src->data[1] + slice_start * src_pitchUV;
246  const unsigned char *srcpV = src->data[2] + slice_start * src_pitchUV;
247  const unsigned char *srcpY = src->data[0] + slice_start * src_pitchY;
248  const int dst_pitchY = dst->linesize[0];
249  const int dst_pitchUV = dst->linesize[1];
250  unsigned char *dstpU = dst->data[1] + slice_start * dst_pitchUV;
251  unsigned char *dstpV = dst->data[2] + slice_start * dst_pitchUV;
252  unsigned char *dstpY = dst->data[0] + slice_start * dst_pitchY;
253  const int c2 = td->c2;
254  const int c3 = td->c3;
255  const int c4 = td->c4;
256  const int c5 = td->c5;
257  const int c6 = td->c6;
258  const int c7 = td->c7;
259  int x, y;
260 
261  for (y = slice_start; y < slice_end; y++) {
262  for (x = 0; x < width; x++) {
263  const int u = srcpU[x] - 128;
264  const int v = srcpV[x] - 128;
265  const int uvval = c2 * u + c3 * v + 1081344;
266  dstpY[x] = CB((65536 * (srcpY[x] - 16) + uvval) >> 16);
267  dstpU[x] = CB((c4 * u + c5 * v + 8421376) >> 16);
268  dstpV[x] = CB((c6 * u + c7 * v + 8421376) >> 16);
269  }
270  srcpY += src_pitchY;
271  dstpY += dst_pitchY;
272  srcpU += src_pitchUV;
273  srcpV += src_pitchUV;
274  dstpU += dst_pitchUV;
275  dstpV += dst_pitchUV;
276  }
277 
278  return 0;
279 }
280 
281 static int process_slice_yuv422p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
282 {
283  const ThreadData *td = arg;
284  const AVFrame *src = td->src;
285  AVFrame *dst = td->dst;
286  const int height = src->height;
287  const int width = src->width;
288  const int slice_start = (height * jobnr ) / nb_jobs;
289  const int slice_end = (height * (jobnr+1)) / nb_jobs;
290  const int src_pitchY = src->linesize[0];
291  const int src_pitchUV = src->linesize[1];
292  const unsigned char *srcpU = src->data[1] + slice_start * src_pitchUV;
293  const unsigned char *srcpV = src->data[2] + slice_start * src_pitchUV;
294  const unsigned char *srcpY = src->data[0] + slice_start * src_pitchY;
295  const int dst_pitchY = dst->linesize[0];
296  const int dst_pitchUV = dst->linesize[1];
297  unsigned char *dstpU = dst->data[1] + slice_start * dst_pitchUV;
298  unsigned char *dstpV = dst->data[2] + slice_start * dst_pitchUV;
299  unsigned char *dstpY = dst->data[0] + slice_start * dst_pitchY;
300  const int c2 = td->c2;
301  const int c3 = td->c3;
302  const int c4 = td->c4;
303  const int c5 = td->c5;
304  const int c6 = td->c6;
305  const int c7 = td->c7;
306  int x, y;
307 
308  for (y = slice_start; y < slice_end; y++) {
309  for (x = 0; x < width; x += 2) {
310  const int u = srcpU[x >> 1] - 128;
311  const int v = srcpV[x >> 1] - 128;
312  const int uvval = c2 * u + c3 * v + 1081344;
313  dstpY[x + 0] = CB((65536 * (srcpY[x + 0] - 16) + uvval) >> 16);
314  dstpY[x + 1] = CB((65536 * (srcpY[x + 1] - 16) + uvval) >> 16);
315  dstpU[x >> 1] = CB((c4 * u + c5 * v + 8421376) >> 16);
316  dstpV[x >> 1] = CB((c6 * u + c7 * v + 8421376) >> 16);
317  }
318  srcpY += src_pitchY;
319  dstpY += dst_pitchY;
320  srcpU += src_pitchUV;
321  srcpV += src_pitchUV;
322  dstpU += dst_pitchUV;
323  dstpV += dst_pitchUV;
324  }
325 
326  return 0;
327 }
328 
329 static int process_slice_yuv420p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
330 {
331  const ThreadData *td = arg;
332  const AVFrame *src = td->src;
333  AVFrame *dst = td->dst;
334  const int height = FFALIGN(src->height, 2) >> 1;
335  const int width = src->width;
336  const int slice_start = ((height * jobnr ) / nb_jobs) << 1;
337  const int slice_end = ((height * (jobnr+1)) / nb_jobs) << 1;
338  const int src_pitchY = src->linesize[0];
339  const int src_pitchUV = src->linesize[1];
340  const int dst_pitchY = dst->linesize[0];
341  const int dst_pitchUV = dst->linesize[1];
342  const unsigned char *srcpY = src->data[0] + src_pitchY * slice_start;
343  const unsigned char *srcpU = src->data[1] + src_pitchUV * (slice_start >> 1);
344  const unsigned char *srcpV = src->data[2] + src_pitchUV * (slice_start >> 1);
345  const unsigned char *srcpN = src->data[0] + src_pitchY * (slice_start + 1);
346  unsigned char *dstpU = dst->data[1] + dst_pitchUV * (slice_start >> 1);
347  unsigned char *dstpV = dst->data[2] + dst_pitchUV * (slice_start >> 1);
348  unsigned char *dstpY = dst->data[0] + dst_pitchY * slice_start;
349  unsigned char *dstpN = dst->data[0] + dst_pitchY * (slice_start + 1);
350  const int c2 = td->c2;
351  const int c3 = td->c3;
352  const int c4 = td->c4;
353  const int c5 = td->c5;
354  const int c6 = td->c6;
355  const int c7 = td->c7;
356  int x, y;
357 
358  for (y = slice_start; y < slice_end; y += 2) {
359  for (x = 0; x < width; x += 2) {
360  const int u = srcpU[x >> 1] - 128;
361  const int v = srcpV[x >> 1] - 128;
362  const int uvval = c2 * u + c3 * v + 1081344;
363  dstpY[x + 0] = CB((65536 * (srcpY[x + 0] - 16) + uvval) >> 16);
364  dstpY[x + 1] = CB((65536 * (srcpY[x + 1] - 16) + uvval) >> 16);
365  dstpN[x + 0] = CB((65536 * (srcpN[x + 0] - 16) + uvval) >> 16);
366  dstpN[x + 1] = CB((65536 * (srcpN[x + 1] - 16) + uvval) >> 16);
367  dstpU[x >> 1] = CB((c4 * u + c5 * v + 8421376) >> 16);
368  dstpV[x >> 1] = CB((c6 * u + c7 * v + 8421376) >> 16);
369  }
370  srcpY += src_pitchY << 1;
371  dstpY += dst_pitchY << 1;
372  srcpN += src_pitchY << 1;
373  dstpN += dst_pitchY << 1;
374  srcpU += src_pitchUV;
375  srcpV += src_pitchUV;
376  dstpU += dst_pitchUV;
377  dstpV += dst_pitchUV;
378  }
379 
380  return 0;
381 }
382 
383 static int config_input(AVFilterLink *inlink)
384 {
385  AVFilterContext *ctx = inlink->dst;
386  ColorMatrixContext *color = ctx->priv;
387  const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
388 
389  color->hsub = pix_desc->log2_chroma_w;
390  color->vsub = pix_desc->log2_chroma_h;
391 
392  av_log(ctx, AV_LOG_VERBOSE, "%s -> %s\n",
393  color_modes[color->source], color_modes[color->dest]);
394 
395  return 0;
396 }
397 
399 {
400  static const enum AVPixelFormat pix_fmts[] = {
406  };
407  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
408  if (!fmts_list)
409  return AVERROR(ENOMEM);
410  return ff_set_common_formats(ctx, fmts_list);
411 }
412 
413 static int filter_frame(AVFilterLink *link, AVFrame *in)
414 {
415  AVFilterContext *ctx = link->dst;
416  ColorMatrixContext *color = ctx->priv;
417  AVFilterLink *outlink = ctx->outputs[0];
418  AVFrame *out;
419  ThreadData td = {0};
420 
421  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
422  if (!out) {
423  av_frame_free(&in);
424  return AVERROR(ENOMEM);
425  }
426  av_frame_copy_props(out, in);
427 
428  if (color->source == COLOR_MODE_NONE) {
430  enum ColorMode source;
431 
432  switch(cs) {
433  case AVCOL_SPC_BT709 : source = COLOR_MODE_BT709 ; break;
434  case AVCOL_SPC_FCC : source = COLOR_MODE_FCC ; break;
435  case AVCOL_SPC_SMPTE240M : source = COLOR_MODE_SMPTE240M ; break;
436  case AVCOL_SPC_BT470BG : source = COLOR_MODE_BT601 ; break;
437  case AVCOL_SPC_SMPTE170M : source = COLOR_MODE_BT601 ; break;
438  default :
439  av_log(ctx, AV_LOG_ERROR, "Input frame does not specify a supported colorspace, and none has been specified as source either\n");
440  av_frame_free(&out);
441  return AVERROR(EINVAL);
442  }
443  color->mode = source * 4 + color->dest;
444  } else
445  color->mode = color->source * 4 + color->dest;
446 
447  switch(color->dest) {
452  }
453 
454  td.src = in;
455  td.dst = out;
456  td.c2 = color->yuv_convert[color->mode][0][1];
457  td.c3 = color->yuv_convert[color->mode][0][2];
458  td.c4 = color->yuv_convert[color->mode][1][1];
459  td.c5 = color->yuv_convert[color->mode][1][2];
460  td.c6 = color->yuv_convert[color->mode][2][1];
461  td.c7 = color->yuv_convert[color->mode][2][2];
462 
463  if (in->format == AV_PIX_FMT_YUV444P)
464  ctx->internal->execute(ctx, process_slice_yuv444p, &td, NULL,
465  FFMIN(in->height, ctx->graph->nb_threads));
466  else if (in->format == AV_PIX_FMT_YUV422P)
467  ctx->internal->execute(ctx, process_slice_yuv422p, &td, NULL,
468  FFMIN(in->height, ctx->graph->nb_threads));
469  else if (in->format == AV_PIX_FMT_YUV420P)
470  ctx->internal->execute(ctx, process_slice_yuv420p, &td, NULL,
471  FFMIN(in->height / 2, ctx->graph->nb_threads));
472  else
473  ctx->internal->execute(ctx, process_slice_uyvy422, &td, NULL,
474  FFMIN(in->height, ctx->graph->nb_threads));
475 
476  av_frame_free(&in);
477  return ff_filter_frame(outlink, out);
478 }
479 
480 static const AVFilterPad colormatrix_inputs[] = {
481  {
482  .name = "default",
483  .type = AVMEDIA_TYPE_VIDEO,
484  .config_props = config_input,
485  .filter_frame = filter_frame,
486  },
487  { NULL }
488 };
489 
491  {
492  .name = "default",
493  .type = AVMEDIA_TYPE_VIDEO,
494  },
495  { NULL }
496 };
497 
499  .name = "colormatrix",
500  .description = NULL_IF_CONFIG_SMALL("Convert color matrix."),
501  .priv_size = sizeof(ColorMatrixContext),
502  .init = init,
504  .inputs = colormatrix_inputs,
505  .outputs = colormatrix_outputs,
506  .priv_class = &colormatrix_class,
508 };
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
Definition: pixfmt.h:431
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:82
#define NULL
Definition: coverity.c:32
static av_cold int init(AVFilterContext *ctx)
static const char *const color_modes[]
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2193
This structure describes decoded (raw) audio or video data.
Definition: frame.h:180
#define mi
#define mf
BYTE int const BYTE int src_pitch
Definition: avisynth_c.h:676
AVOption.
Definition: opt.h:245
static int filter_frame(AVFilterLink *link, AVFrame *in)
const AVFrame * src
static const double yuv_coeff[4][3][3]
static void solve_coefficients(double cm[3][3], double rgb[3][3], const double yuv[3][3])
#define ma
int yuv_convert[16][3][3]
AVFormatContext * ctx
Definition: movenc-test.c:48
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
Main libavfilter public API header.
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601 ...
Definition: pixfmt.h:435
#define ima
#define me
static int process_slice_yuv444p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:436
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
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
static int query_formats(AVFilterContext *ctx)
functionally identical to above
Definition: pixfmt.h:437
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:322
#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:123
#define img
BYTE int const BYTE * srcp
Definition: avisynth_c.h:676
const char * name
Pad name.
Definition: internal.h:59
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1180
#define av_cold
Definition: attributes.h:82
#define mb
AVOptions.
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:429
#define NS(n)
static const AVFilterPad colormatrix_inputs[]
int nb_threads
Maximum number of threads used by filters in this graph.
Definition: avfilter.h:804
#define imi
#define imd
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
static int config_input(AVFilterLink *inlink)
#define FFALIGN(x, a)
Definition: macros.h:48
#define av_log(a,...)
#define cm
Definition: dvbsubdec.c:36
unsigned m
Definition: audioconvert.c:187
#define FLAGS
A filter pad used for either input or output.
Definition: internal.h:53
static int process_slice_yuv422p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
int width
width and height of the video frame
Definition: frame.h:232
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
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
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
BYTE * dstp
Definition: avisynth_c.h:676
#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:153
void av_frame_set_colorspace(AVFrame *frame, enum AVColorSpace val)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
static int process_slice_uyvy422(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
void * priv
private data for use by the filter
Definition: avfilter.h:320
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:114
const char * arg
Definition: jacosubdec.c:66
AVFILTER_DEFINE_CLASS(colormatrix)
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
static void inverse3x3(double im[3][3], const double m[3][3])
#define imh
#define FFMIN(a, b)
Definition: common.h:96
#define md
#define width
ColorMode
#define ime
#define CB(n)
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
#define src
Definition: vp9dsp.c:530
FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:434
static void calc_coefficients(AVFilterContext *ctx)
#define mc
FILE * out
Definition: movenc-test.c:54
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:244
AVFrame * dst
Definition: vf_blend.c:55
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
float im
Definition: fft-test.c:73
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:211
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
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
enum AVColorSpace av_frame_get_colorspace(const AVFrame *frame)
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:142
const char * name
Filter name.
Definition: avfilter.h:146
#define u(width,...)
#define imc
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:317
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:345
static int flags
Definition: cpu.c:47
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:194
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
static const uint64_t c2
Definition: murmur3.c:50
avfilter_execute_func * execute
Definition: internal.h:153
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2051
#define imb
#define mg
A list of supported formats for one end of a filter link.
Definition: formats.h:64
An instance of a filter.
Definition: avfilter.h:305
static int process_slice_yuv420p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
int height
Definition: frame.h:232
static const AVFilterPad colormatrix_outputs[]
AVFilter ff_vf_colormatrix
#define height
BYTE int dst_pitch
Definition: avisynth_c.h:676
internal API functions
int dest
ColorMode.
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
static const AVOption colormatrix_options[]
#define imf
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:574
#define mh
#define OFFSET(x)