vf_stereo3d.c
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1 /*
2  * Copyright (c) 2010 Gordon Schmidt <gordon.schmidt <at> s2000.tu-chemnitz.de>
3  * Copyright (c) 2013 Paul B Mahol
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 General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 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
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * 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 #include "libavutil/avassert.h"
23 #include "libavutil/imgutils.h"
24 #include "libavutil/opt.h"
25 #include "libavutil/parseutils.h"
26 #include "libavutil/pixdesc.h"
27 #include "avfilter.h"
28 #include "formats.h"
29 #include "internal.h"
30 #include "video.h"
31 
32 enum StereoCode {
33  ANAGLYPH_RC_GRAY, // anaglyph red/cyan gray
34  ANAGLYPH_RC_HALF, // anaglyph red/cyan half colored
35  ANAGLYPH_RC_COLOR, // anaglyph red/cyan colored
36  ANAGLYPH_RC_DUBOIS, // anaglyph red/cyan dubois
37  ANAGLYPH_GM_GRAY, // anaglyph green/magenta gray
38  ANAGLYPH_GM_HALF, // anaglyph green/magenta half colored
39  ANAGLYPH_GM_COLOR, // anaglyph green/magenta colored
40  ANAGLYPH_GM_DUBOIS, // anaglyph green/magenta dubois
41  ANAGLYPH_YB_GRAY, // anaglyph yellow/blue gray
42  ANAGLYPH_YB_HALF, // anaglyph yellow/blue half colored
43  ANAGLYPH_YB_COLOR, // anaglyph yellow/blue colored
44  ANAGLYPH_YB_DUBOIS, // anaglyph yellow/blue dubois
45  ANAGLYPH_RB_GRAY, // anaglyph red/blue gray
46  ANAGLYPH_RG_GRAY, // anaglyph red/green gray
47  MONO_L, // mono output for debugging (left eye only)
48  MONO_R, // mono output for debugging (right eye only)
49  INTERLEAVE_ROWS_LR, // row-interleave (left eye has top row)
50  INTERLEAVE_ROWS_RL, // row-interleave (right eye has top row)
51  SIDE_BY_SIDE_LR, // side by side parallel (left eye left, right eye right)
52  SIDE_BY_SIDE_RL, // side by side crosseye (right eye left, left eye right)
53  SIDE_BY_SIDE_2_LR, // side by side parallel with half width resolution
54  SIDE_BY_SIDE_2_RL, // side by side crosseye with half width resolution
55  ABOVE_BELOW_LR, // above-below (left eye above, right eye below)
56  ABOVE_BELOW_RL, // above-below (right eye above, left eye below)
57  ABOVE_BELOW_2_LR, // above-below with half height resolution
58  ABOVE_BELOW_2_RL, // above-below with half height resolution
59  STEREO_CODE_COUNT // TODO: needs autodetection
60 };
61 
62 typedef struct StereoComponent {
63  enum StereoCode format;
64  int width, height;
65  int off_left, off_right;
66  int off_lstep, off_rstep;
67  int row_left, row_right;
68 } StereoComponent;
69 
70 static const int ana_coeff[][3][6] = {
71  [ANAGLYPH_RB_GRAY] =
72  {{19595, 38470, 7471, 0, 0, 0},
73  { 0, 0, 0, 0, 0, 0},
74  { 0, 0, 0, 19595, 38470, 7471}},
75  [ANAGLYPH_RG_GRAY] =
76  {{19595, 38470, 7471, 0, 0, 0},
77  { 0, 0, 0, 19595, 38470, 7471},
78  { 0, 0, 0, 0, 0, 0}},
79  [ANAGLYPH_RC_GRAY] =
80  {{19595, 38470, 7471, 0, 0, 0},
81  { 0, 0, 0, 19595, 38470, 7471},
82  { 0, 0, 0, 19595, 38470, 7471}},
83  [ANAGLYPH_RC_HALF] =
84  {{19595, 38470, 7471, 0, 0, 0},
85  { 0, 0, 0, 0, 65536, 0},
86  { 0, 0, 0, 0, 0, 65536}},
87  [ANAGLYPH_RC_COLOR] =
88  {{65536, 0, 0, 0, 0, 0},
89  { 0, 0, 0, 0, 65536, 0},
90  { 0, 0, 0, 0, 0, 65536}},
91  [ANAGLYPH_RC_DUBOIS] =
92  {{29891, 32800, 11559, -2849, -5763, -102},
93  {-2627, -2479, -1033, 24804, 48080, -1209},
94  { -997, -1350, -358, -4729, -7403, 80373}},
95  [ANAGLYPH_GM_GRAY] =
96  {{ 0, 0, 0, 19595, 38470, 7471},
97  {19595, 38470, 7471, 0, 0, 0},
98  { 0, 0, 0, 19595, 38470, 7471}},
99  [ANAGLYPH_GM_HALF] =
100  {{ 0, 0, 0, 65536, 0, 0},
101  {19595, 38470, 7471, 0, 0, 0},
102  { 0, 0, 0, 0, 0, 65536}},
103  [ANAGLYPH_GM_COLOR] =
104  {{ 0, 0, 0, 65536, 0, 0},
105  { 0, 65536, 0, 0, 0, 0},
106  { 0, 0, 0, 0, 0, 65536}},
107  [ANAGLYPH_GM_DUBOIS] =
108  {{-4063,-10354, -2556, 34669, 46203, 1573},
109  {18612, 43778, 9372, -1049, -983, -4260},
110  { -983, -1769, 1376, 590, 4915, 61407}},
111  [ANAGLYPH_YB_GRAY] =
112  {{ 0, 0, 0, 19595, 38470, 7471},
113  { 0, 0, 0, 19595, 38470, 7471},
114  {19595, 38470, 7471, 0, 0, 0}},
115  [ANAGLYPH_YB_HALF] =
116  {{ 0, 0, 0, 65536, 0, 0},
117  { 0, 0, 0, 0, 65536, 0},
118  {19595, 38470, 7471, 0, 0, 0}},
119  [ANAGLYPH_YB_COLOR] =
120  {{ 0, 0, 0, 65536, 0, 0},
121  { 0, 0, 0, 0, 65536, 0},
122  { 0, 0, 65536, 0, 0, 0}},
123  [ANAGLYPH_YB_DUBOIS] =
124  {{65535,-12650,18451, -987, -7590, -1049},
125  {-1604, 56032, 4196, 370, 3826, -1049},
126  {-2345,-10676, 1358, 5801, 11416, 56217}},
127 };
128 
129 typedef struct Stereo3DContext {
130  const AVClass *class;
131  StereoComponent in, out;
132  int width, height;
133  int row_step;
134  int ana_matrix[3][6];
135  int nb_planes;
136  int linesize[4];
137  int pixstep[4];
138 } Stereo3DContext;
139 
140 #define OFFSET(x) offsetof(Stereo3DContext, x)
141 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
142 
143 static const AVOption stereo3d_options[] = {
144  { "in", "set input format", OFFSET(in.format), AV_OPT_TYPE_INT, {.i64=SIDE_BY_SIDE_LR}, SIDE_BY_SIDE_LR, ABOVE_BELOW_2_RL, FLAGS, "in"},
145  { "ab2l", "above below half height left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_LR}, 0, 0, FLAGS, "in" },
146  { "ab2r", "above below half height right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_RL}, 0, 0, FLAGS, "in" },
147  { "abl", "above below left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_LR}, 0, 0, FLAGS, "in" },
148  { "abr", "above below right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_RL}, 0, 0, FLAGS, "in" },
149  { "sbs2l", "side by side half width left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_LR}, 0, 0, FLAGS, "in" },
150  { "sbs2r", "side by side half width right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_RL}, 0, 0, FLAGS, "in" },
151  { "sbsl", "side by side left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_LR}, 0, 0, FLAGS, "in" },
152  { "sbsr", "side by side right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_RL}, 0, 0, FLAGS, "in" },
153  { "out", "set output format", OFFSET(out.format), AV_OPT_TYPE_INT, {.i64=ANAGLYPH_RC_DUBOIS}, 0, STEREO_CODE_COUNT-1, FLAGS, "out"},
154  { "ab2l", "above below half height left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_LR}, 0, 0, FLAGS, "out" },
155  { "ab2r", "above below half height right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_RL}, 0, 0, FLAGS, "out" },
156  { "abl", "above below left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_LR}, 0, 0, FLAGS, "out" },
157  { "abr", "above below right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_RL}, 0, 0, FLAGS, "out" },
158  { "agmc", "anaglyph green magenta color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_COLOR}, 0, 0, FLAGS, "out" },
159  { "agmd", "anaglyph green magenta dubois", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_DUBOIS}, 0, 0, FLAGS, "out" },
160  { "agmg", "anaglyph green magenta gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_GRAY}, 0, 0, FLAGS, "out" },
161  { "agmh", "anaglyph green magenta half color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_HALF}, 0, 0, FLAGS, "out" },
162  { "arbg", "anaglyph red blue gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RB_GRAY}, 0, 0, FLAGS, "out" },
163  { "arcc", "anaglyph red cyan color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_COLOR}, 0, 0, FLAGS, "out" },
164  { "arcd", "anaglyph red cyan dubois", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_DUBOIS}, 0, 0, FLAGS, "out" },
165  { "arcg", "anaglyph red cyan gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_GRAY}, 0, 0, FLAGS, "out" },
166  { "arch", "anaglyph red cyan half color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_HALF}, 0, 0, FLAGS, "out" },
167  { "argg", "anaglyph red green gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RG_GRAY}, 0, 0, FLAGS, "out" },
168  { "aybc", "anaglyph yellow blue color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_COLOR}, 0, 0, FLAGS, "out" },
169  { "aybd", "anaglyph yellow blue dubois", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_DUBOIS}, 0, 0, FLAGS, "out" },
170  { "aybg", "anaglyph yellow blue gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_GRAY}, 0, 0, FLAGS, "out" },
171  { "aybh", "anaglyph yellow blue half color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_HALF}, 0, 0, FLAGS, "out" },
172  { "irl", "interleave rows left first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_LR}, 0, 0, FLAGS, "out" },
173  { "irr", "interleave rows right first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_RL}, 0, 0, FLAGS, "out" },
174  { "ml", "mono left", 0, AV_OPT_TYPE_CONST, {.i64=MONO_L}, 0, 0, FLAGS, "out" },
175  { "mr", "mono right", 0, AV_OPT_TYPE_CONST, {.i64=MONO_R}, 0, 0, FLAGS, "out" },
176  { "sbs2l", "side by side half width left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_LR}, 0, 0, FLAGS, "out" },
177  { "sbs2r", "side by side half width right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_RL}, 0, 0, FLAGS, "out" },
178  { "sbsl", "side by side left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_LR}, 0, 0, FLAGS, "out" },
179  { "sbsr", "side by side right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_RL}, 0, 0, FLAGS, "out" },
180  {NULL},
181 };
182 
183 AVFILTER_DEFINE_CLASS(stereo3d);
184 
185 static const enum AVPixelFormat anaglyph_pix_fmts[] = { AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE };
186 static const enum AVPixelFormat other_pix_fmts[] = {
187  AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
188  AV_PIX_FMT_RGB48BE, AV_PIX_FMT_BGR48BE,
189  AV_PIX_FMT_RGB48LE, AV_PIX_FMT_BGR48LE,
190  AV_PIX_FMT_RGBA64BE, AV_PIX_FMT_BGRA64BE,
191  AV_PIX_FMT_RGBA64LE, AV_PIX_FMT_BGRA64LE,
192  AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
193  AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR,
194  AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0,
195  AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR,
196  AV_PIX_FMT_GBRP,
197  AV_PIX_FMT_GBRP9BE, AV_PIX_FMT_GBRP9LE,
198  AV_PIX_FMT_GBRP10BE, AV_PIX_FMT_GBRP10LE,
199  AV_PIX_FMT_GBRP12BE, AV_PIX_FMT_GBRP12LE,
200  AV_PIX_FMT_GBRP14BE, AV_PIX_FMT_GBRP14LE,
201  AV_PIX_FMT_GBRP16BE, AV_PIX_FMT_GBRP16LE,
202  AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P,
203  AV_PIX_FMT_YUVJ444P,
204  AV_PIX_FMT_YUV444P9LE, AV_PIX_FMT_YUVA444P9LE,
205  AV_PIX_FMT_YUV444P9BE, AV_PIX_FMT_YUVA444P9BE,
206  AV_PIX_FMT_YUV444P10LE, AV_PIX_FMT_YUVA444P10LE,
207  AV_PIX_FMT_YUV444P10BE, AV_PIX_FMT_YUVA444P10BE,
208  AV_PIX_FMT_YUV444P12BE, AV_PIX_FMT_YUV444P12LE,
209  AV_PIX_FMT_YUV444P14BE, AV_PIX_FMT_YUV444P14LE,
210  AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUVA444P16LE,
211  AV_PIX_FMT_YUV444P16BE, AV_PIX_FMT_YUVA444P16BE,
212  AV_PIX_FMT_NONE
213 };
214 
215 static int query_formats(AVFilterContext *ctx)
216 {
217  Stereo3DContext *s = ctx->priv;
218  const enum AVPixelFormat *pix_fmts;
219 
220  switch (s->out.format) {
221  case ANAGLYPH_GM_COLOR:
222  case ANAGLYPH_GM_DUBOIS:
223  case ANAGLYPH_GM_GRAY:
224  case ANAGLYPH_GM_HALF:
225  case ANAGLYPH_RB_GRAY:
226  case ANAGLYPH_RC_COLOR:
227  case ANAGLYPH_RC_DUBOIS:
228  case ANAGLYPH_RC_GRAY:
229  case ANAGLYPH_RC_HALF:
230  case ANAGLYPH_RG_GRAY:
231  case ANAGLYPH_YB_COLOR:
232  case ANAGLYPH_YB_DUBOIS:
233  case ANAGLYPH_YB_GRAY:
234  case ANAGLYPH_YB_HALF:
235  pix_fmts = anaglyph_pix_fmts;
236  break;
237  default:
238  pix_fmts = other_pix_fmts;
239  }
240 
241  ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
242 
243  return 0;
244 }
245 
246 static int config_output(AVFilterLink *outlink)
247 {
248  AVFilterContext *ctx = outlink->src;
249  AVFilterLink *inlink = ctx->inputs[0];
250  Stereo3DContext *s = ctx->priv;
251  AVRational aspect = inlink->sample_aspect_ratio;
252  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format);
253  int ret;
254 
255  switch (s->in.format) {
256  case SIDE_BY_SIDE_2_LR:
257  case SIDE_BY_SIDE_LR:
258  case SIDE_BY_SIDE_2_RL:
259  case SIDE_BY_SIDE_RL:
260  if (inlink->w & 1) {
261  av_log(ctx, AV_LOG_ERROR, "width must be even\n");
262  return AVERROR_INVALIDDATA;
263  }
264  break;
265  case ABOVE_BELOW_2_LR:
266  case ABOVE_BELOW_LR:
267  case ABOVE_BELOW_2_RL:
268  case ABOVE_BELOW_RL:
269  if (s->out.format == INTERLEAVE_ROWS_LR ||
270  s->out.format == INTERLEAVE_ROWS_RL) {
271  if (inlink->h & 3) {
272  av_log(ctx, AV_LOG_ERROR, "height must be multiple of 4\n");
273  return AVERROR_INVALIDDATA;
274  }
275  }
276  if (inlink->h & 1) {
277  av_log(ctx, AV_LOG_ERROR, "height must be even\n");
278  return AVERROR_INVALIDDATA;
279  }
280  break;
281  }
282 
283  s->in.width =
284  s->width = inlink->w;
285  s->in.height =
286  s->height = inlink->h;
287  s->row_step = 1;
288  s->in.off_lstep =
289  s->in.off_rstep =
290  s->in.off_left =
291  s->in.off_right =
292  s->in.row_left =
293  s->in.row_right = 0;
294 
295  switch (s->in.format) {
296  case SIDE_BY_SIDE_2_LR:
297  aspect.num *= 2;
298  case SIDE_BY_SIDE_LR:
299  s->width = inlink->w / 2;
300  s->in.off_right = s->width;
301  break;
302  case SIDE_BY_SIDE_2_RL:
303  aspect.num *= 2;
304  case SIDE_BY_SIDE_RL:
305  s->width = inlink->w / 2;
306  s->in.off_left = s->width;
307  break;
308  case ABOVE_BELOW_2_LR:
309  aspect.den *= 2;
310  case ABOVE_BELOW_LR:
311  s->in.row_right =
312  s->height = inlink->h / 2;
313  break;
314  case ABOVE_BELOW_2_RL:
315  aspect.den *= 2;
316  case ABOVE_BELOW_RL:
317  s->in.row_left =
318  s->height = inlink->h / 2;
319  break;
320  default:
321  av_log(ctx, AV_LOG_ERROR, "input format %d is not supported\n", s->in.format);
322  return AVERROR(EINVAL);
323  }
324 
325  s->out.width = s->width;
326  s->out.height = s->height;
327  s->out.off_lstep =
328  s->out.off_rstep =
329  s->out.off_left =
330  s->out.off_right =
331  s->out.row_left =
332  s->out.row_right = 0;
333 
334  switch (s->out.format) {
335  case ANAGLYPH_RB_GRAY:
336  case ANAGLYPH_RG_GRAY:
337  case ANAGLYPH_RC_GRAY:
338  case ANAGLYPH_RC_HALF:
339  case ANAGLYPH_RC_COLOR:
340  case ANAGLYPH_RC_DUBOIS:
341  case ANAGLYPH_GM_GRAY:
342  case ANAGLYPH_GM_HALF:
343  case ANAGLYPH_GM_COLOR:
344  case ANAGLYPH_GM_DUBOIS:
345  case ANAGLYPH_YB_GRAY:
346  case ANAGLYPH_YB_HALF:
347  case ANAGLYPH_YB_COLOR:
348  case ANAGLYPH_YB_DUBOIS:
349  memcpy(s->ana_matrix, ana_coeff[s->out.format], sizeof(s->ana_matrix));
350  break;
351  case SIDE_BY_SIDE_2_LR:
352  aspect.num /= 2;
353  case SIDE_BY_SIDE_LR:
354  s->out.width = s->width * 2;
355  s->out.off_right = s->width;
356  break;
357  case SIDE_BY_SIDE_2_RL:
358  aspect.num /= 2;
359  case SIDE_BY_SIDE_RL:
360  s->out.width = s->width * 2;
361  s->out.off_left = s->width;
362  break;
363  case ABOVE_BELOW_2_LR:
364  aspect.den /= 2;
365  case ABOVE_BELOW_LR:
366  s->out.height = s->height * 2;
367  s->out.row_right = s->height;
368  break;
369  case ABOVE_BELOW_2_RL:
370  aspect.den /= 2;
371  case ABOVE_BELOW_RL:
372  s->out.height = s->height * 2;
373  s->out.row_left = s->height;
374  break;
375  case INTERLEAVE_ROWS_LR:
376  s->row_step = 2;
377  s->height = s->height / 2;
378  s->out.off_rstep =
379  s->in.off_rstep = 1;
380  break;
381  case INTERLEAVE_ROWS_RL:
382  s->row_step = 2;
383  s->height = s->height / 2;
384  s->out.off_lstep =
385  s->in.off_lstep = 1;
386  break;
387  case MONO_R:
388  s->in.off_left = s->in.off_right;
389  s->in.row_left = s->in.row_right;
390  case MONO_L:
391  break;
392  default:
393  av_log(ctx, AV_LOG_ERROR, "output format is not supported\n");
394  return AVERROR(EINVAL);
395  }
396 
397  outlink->w = s->out.width;
398  outlink->h = s->out.height;
399  outlink->sample_aspect_ratio = aspect;
400 
401  if ((ret = av_image_fill_linesizes(s->linesize, outlink->format, s->width)) < 0)
402  return ret;
403  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
404  av_image_fill_max_pixsteps(s->pixstep, NULL, desc);
405 
406  return 0;
407 }
408 
409 static inline uint8_t ana_convert(const int *coeff, uint8_t *left, uint8_t *right)
410 {
411  int sum;
412 
413  sum = coeff[0] * left[0] + coeff[3] * right[0]; //red in
414  sum += coeff[1] * left[1] + coeff[4] * right[1]; //green in
415  sum += coeff[2] * left[2] + coeff[5] * right[2]; //blue in
416 
417  return av_clip_uint8(sum >> 16);
418 }
419 
420 static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
421 {
422  AVFilterContext *ctx = inlink->dst;
423  Stereo3DContext *s = ctx->priv;
424  AVFilterLink *outlink = ctx->outputs[0];
425  AVFrame *out;
426  int out_off_left[4], out_off_right[4];
427  int in_off_left[4], in_off_right[4];
428  int i;
429 
430  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
431  if (!out) {
432  av_frame_free(&inpicref);
433  return AVERROR(ENOMEM);
434  }
435  av_frame_copy_props(out, inpicref);
436 
437  for (i = 0; i < 4; i++) {
438  in_off_left[i] = (s->in.row_left + s->in.off_lstep) * inpicref->linesize[i] + s->in.off_left * s->pixstep[i];
439  in_off_right[i] = (s->in.row_right + s->in.off_rstep) * inpicref->linesize[i] + s->in.off_right * s->pixstep[i];
440  out_off_left[i] = (s->out.row_left + s->out.off_lstep) * out->linesize[i] + s->out.off_left * s->pixstep[i];
441  out_off_right[i] = (s->out.row_right + s->out.off_rstep) * out->linesize[i] + s->out.off_right * s->pixstep[i];
442  }
443 
444  switch (s->out.format) {
445  case SIDE_BY_SIDE_LR:
446  case SIDE_BY_SIDE_RL:
447  case SIDE_BY_SIDE_2_LR:
448  case SIDE_BY_SIDE_2_RL:
449  case ABOVE_BELOW_LR:
450  case ABOVE_BELOW_RL:
451  case ABOVE_BELOW_2_LR:
452  case ABOVE_BELOW_2_RL:
453  case INTERLEAVE_ROWS_LR:
454  case INTERLEAVE_ROWS_RL:
455  for (i = 0; i < s->nb_planes; i++) {
456  av_image_copy_plane(out->data[i] + out_off_left[i],
457  out->linesize[i] * s->row_step,
458  inpicref->data[i] + in_off_left[i],
459  inpicref->linesize[i] * s->row_step,
460  s->linesize[i], s->height);
461  av_image_copy_plane(out->data[i] + out_off_right[i],
462  out->linesize[i] * s->row_step,
463  inpicref->data[i] + in_off_right[i],
464  inpicref->linesize[i] * s->row_step,
465  s->linesize[i], s->height);
466  }
467  break;
468  case MONO_L:
469  case MONO_R:
470  for (i = 0; i < s->nb_planes; i++) {
471  av_image_copy_plane(out->data[i], out->linesize[i],
472  inpicref->data[i] + in_off_left[i],
473  inpicref->linesize[i],
474  s->linesize[i], s->height);
475  }
476  break;
477  case ANAGLYPH_RB_GRAY:
478  case ANAGLYPH_RG_GRAY:
479  case ANAGLYPH_RC_GRAY:
480  case ANAGLYPH_RC_HALF:
481  case ANAGLYPH_RC_COLOR:
482  case ANAGLYPH_RC_DUBOIS:
483  case ANAGLYPH_GM_GRAY:
484  case ANAGLYPH_GM_HALF:
485  case ANAGLYPH_GM_COLOR:
486  case ANAGLYPH_GM_DUBOIS:
487  case ANAGLYPH_YB_GRAY:
488  case ANAGLYPH_YB_HALF:
489  case ANAGLYPH_YB_COLOR:
490  case ANAGLYPH_YB_DUBOIS: {
491  int i, x, y, il, ir, o;
492  uint8_t *src = inpicref->data[0];
493  uint8_t *dst = out->data[0];
494  int out_width = s->out.width;
495  int *ana_matrix[3];
496 
497  for (i = 0; i < 3; i++)
498  ana_matrix[i] = s->ana_matrix[i];
499 
500  for (y = 0; y < s->out.height; y++) {
501  o = out->linesize[0] * y;
502  il = in_off_left[0] + y * inpicref->linesize[0];
503  ir = in_off_right[0] + y * inpicref->linesize[0];
504  for (x = 0; x < out_width; x++, il += 3, ir += 3, o+= 3) {
505  dst[o ] = ana_convert(ana_matrix[0], src + il, src + ir);
506  dst[o + 1] = ana_convert(ana_matrix[1], src + il, src + ir);
507  dst[o + 2] = ana_convert(ana_matrix[2], src + il, src + ir);
508  }
509  }
510  break;
511  }
512  default:
513  av_assert0(0);
514  }
515 
516  av_frame_free(&inpicref);
517  return ff_filter_frame(outlink, out);
518 }
519 
520 static const AVFilterPad stereo3d_inputs[] = {
521  {
522  .name = "default",
523  .type = AVMEDIA_TYPE_VIDEO,
524  .filter_frame = filter_frame,
525  },
526  { NULL }
527 };
528 
529 static const AVFilterPad stereo3d_outputs[] = {
530  {
531  .name = "default",
532  .type = AVMEDIA_TYPE_VIDEO,
533  .config_props = config_output,
534  },
535  { NULL }
536 };
537 
538 AVFilter avfilter_vf_stereo3d = {
539  .name = "stereo3d",
540  .description = NULL_IF_CONFIG_SMALL("Convert video stereoscopic 3D view."),
541  .priv_size = sizeof(Stereo3DContext),
542  .query_formats = query_formats,
543  .inputs = stereo3d_inputs,
544  .outputs = stereo3d_outputs,
545  .priv_class = &stereo3d_class,
546 };
avfilter_vf_stereo3d
AVFilter avfilter_vf_stereo3d
Definition: vf_stereo3d.c:538
s
const char * s
Definition: avisynth_c.h:668
AV_PIX_FMT_YUV444P14BE
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:231
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
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:424
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:1778
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:76
Stereo3DContext::in
StereoComponent in
Definition: vf_stereo3d.c:131
AVOption
AVOption.
Definition: opt.h:251
ABOVE_BELOW_2_RL
Definition: vf_stereo3d.c:58
AV_PIX_FMT_BGRA64LE
packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:212
AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:73
imgutils.h
misc image utilities
outputs
static const AVFilterPad outputs[]
Definition: af_ashowinfo.c:117
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:1818
SIDE_BY_SIDE_LR
Definition: vf_stereo3d.c:51
avfilter.h
external API header
AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:70
AV_OPT_TYPE_INT
Definition: opt.h:222
AV_PIX_FMT_YUV444P9BE
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:154
AV_PIX_FMT_YUV444P12BE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:229
AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
ANAGLYPH_YB_GRAY
Definition: vf_stereo3d.c:41
AVRational::num
int num
numerator
Definition: rational.h:44
AV_PIX_FMT_BGRA64BE
packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:211
in
About Git write you should know how to use GIT properly Luckily Git comes with excellent documentation git help man git shows you the available git< command > help man git< command > shows information about the subcommand< command > The most comprehensive manual is the website Git Reference visit they are quite exhaustive You do not need a special username or password All you need is to provide a ssh public key to the Git server admin What follows now is a basic introduction to Git and some FFmpeg specific guidelines Read it at least if you are granted commit privileges to the FFmpeg project you are expected to be familiar with these rules I if not You can get git from etc no matter how small Every one of them has been saved from looking like a fool by this many times It s very easy for stray debug output or cosmetic modifications to slip in
Definition: git-howto.txt:5
AV_PIX_FMT_YUVA444P10LE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:195
StereoComponent
struct StereoComponent StereoComponent
AV_PIX_FMT_GBRP12LE
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:234
ANAGLYPH_RC_COLOR
Definition: vf_stereo3d.c:35
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(stereo3d)
AV_PIX_FMT_0BGR
packed BGR 8:8:8, 32bpp, 0BGR0BGR...
Definition: pixfmt.h:216
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:143
ANAGLYPH_GM_COLOR
Definition: vf_stereo3d.c:39
AV_PIX_FMT_GBRP12BE
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:233
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:308
ANAGLYPH_RC_DUBOIS
Definition: vf_stereo3d.c:36
av_image_fill_max_pixsteps
void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4], const AVPixFmtDescriptor *pixdesc)
Compute the max pixel step for each plane of an image with a format described by pixdesc.
Definition: imgutils.c:32
AVFilterPad::name
const char * name
Pad name.
Definition: libavfilter/internal.h:63
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:532
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
AV_OPT_TYPE_CONST
Definition: opt.h:229
Stereo3DContext
struct Stereo3DContext Stereo3DContext
Stereo3DContext::out
StereoComponent out
Definition: vf_stereo3d.c:131
uint8_t
uint8_t
Definition: audio_convert.c:194
ff_filter_frame
it can be given away to ff_start_frame *A reference passed to ff_filter_frame(or the deprecated ff_start_frame) is given away and must no longer be used.*A reference created with avfilter_ref_buffer belongs to the code that created it.*A reference obtained with ff_get_video_buffer or ff_get_audio_buffer belongs to the code that requested it.*A reference given as return value by the get_video_buffer or get_audio_buffer method is given away and must no longer be used.Link reference fields---------------------The AVFilterLink structure has a few AVFilterBufferRef fields.The cur_buf and out_buf were used with the deprecated start_frame/draw_slice/end_frame API and should no longer be used.src_buf
AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGB0RGB0...
Definition: pixfmt.h:215
opt.h
AVOptions.
AV_PIX_FMT_RGB48LE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as lit...
Definition: pixfmt.h:112
AV_PIX_FMT_RGBA64BE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:209
AV_PIX_FMT_YUV444P12LE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:230
Stereo3DContext::ana_matrix
int ana_matrix[3][6]
Definition: vf_stereo3d.c:134
AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:98
stereo3d_outputs
static const AVFilterPad stereo3d_outputs[]
Definition: vf_stereo3d.c:529
AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:173
AV_PIX_FMT_YUVA444P16BE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:200
ff_set_common_formats
void 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:545
AVFilterPad
A filter pad used for either input or output.
Definition: libavfilter/internal.h:57
x
Discrete Time axis x
Definition: FFT of a Simple Sinusoid.m:10
AV_PIX_FMT_GBRP9BE
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:169
AV_PIX_FMT_YUV444P10LE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:157
AV_PIX_FMT_YUV444P16BE
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:133
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: libavutil/internal.h:123
AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:99
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:545
AV_PIX_FMT_YUVA444P9BE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition: pixfmt.h:188
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
av_log
void av_log(void *avcl, int level, const char *fmt,...)
Definition: log.c:246
ANAGLYPH_GM_GRAY
Definition: vf_stereo3d.c:37
AV_PIX_FMT_YUVA444P9LE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:189
FLAGS
#define FLAGS
Definition: vf_stereo3d.c:141
AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:96
AV_PIX_FMT_BGR48LE
packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as lit...
Definition: pixfmt.h:143
AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:97
OFFSET
#define OFFSET(x)
Definition: vf_stereo3d.c:140
STEREO_CODE_COUNT
Definition: vf_stereo3d.c:59
ret
ret
Definition: avfilter.c:821
ABOVE_BELOW_RL
Definition: vf_stereo3d.c:56
SIDE_BY_SIDE_2_LR
Definition: vf_stereo3d.c:53
stereo3d_inputs
static const AVFilterPad stereo3d_inputs[]
Definition: vf_stereo3d.c:520
SIDE_BY_SIDE_RL
Definition: vf_stereo3d.c:52
AV_PIX_FMT_YUVA444P10BE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:194
ANAGLYPH_YB_DUBOIS
Definition: vf_stereo3d.c:44
AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:71
ANAGLYPH_RC_HALF
Definition: vf_stereo3d.c:34
ABOVE_BELOW_LR
Definition: vf_stereo3d.c:55
StereoComponent::format
enum StereoCode format
Definition: vf_stereo3d.c:63
AV_PIX_FMT_BGR48BE
packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as big...
Definition: pixfmt.h:142
other_pix_fmts
static enum AVPixelFormat other_pix_fmts[]
Definition: vf_stereo3d.c:186
stereo3d_options
static const AVOption stereo3d_options[]
Definition: vf_stereo3d.c:143
NULL
NULL
Definition: eval.c:55
MONO_L
Definition: vf_stereo3d.c:47
INTERLEAVE_ROWS_LR
Definition: vf_stereo3d.c:49
src
AVS_Value src
Definition: avisynth_c.h:523
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:101
AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:218
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:55
AV_PIX_FMT_GBRP10BE
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:171
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:148
anaglyph_pix_fmts
static enum AVPixelFormat anaglyph_pix_fmts[]
Definition: vf_stereo3d.c:185
AV_PIX_FMT_GBRP14LE
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:236
ANAGLYPH_GM_HALF
Definition: vf_stereo3d.c:38
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:50
AVFilter
Filter definition.
Definition: avfilter.h:436
av_image_fill_linesizes
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
Definition: imgutils.c:86
AV_PIX_FMT_YUVA444P16LE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:201
i
synthesis window for stochastic i
Definition: code Kat/hpsmodel.m:34
AVRational
rational number numerator/denominator
Definition: rational.h:43
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_stereo3d.c:246
ANAGLYPH_YB_COLOR
Definition: vf_stereo3d.c:43
AV_PIX_FMT_BGR0
packed BGR 8:8:8, 32bpp, BGR0BGR0...
Definition: pixfmt.h:217
AVFilter::name
const char * name
filter name
Definition: avfilter.h:437
coeff
static const double coeff[2][5]
Definition: vf_ow.c:64
AV_PIX_FMT_GBRP14BE
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:235
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFilterBuffer 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.Buffer references ownership and permissions
parseutils.h
misc parsing utilities
AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:539
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_stereo3d.c:215
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:87
AV_PIX_FMT_YUV444P9LE
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:155
AV_PIX_FMT_YUV444P16LE
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:132
ANAGLYPH_RC_GRAY
Definition: vf_stereo3d.c:33
ANAGLYPH_GM_DUBOIS
Definition: vf_stereo3d.c:40
AV_PIX_FMT_GBRP9LE
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:170
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:108
AV_PIX_FMT_RGB48BE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big...
Definition: pixfmt.h:111
AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV444P and setting color_...
Definition: pixfmt.h:82
AVRational::den
int den
denominator
Definition: rational.h:45
y
function y
Definition: D.m:1
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
Definition: vf_stereo3d.c:420
ana_coeff
static const int ana_coeff[][3][6]
Definition: vf_stereo3d.c:70
ABOVE_BELOW_2_LR
Definition: vf_stereo3d.c:57
AV_PIX_FMT_YUV444P14LE
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:232
SIDE_BY_SIDE_2_RL
Definition: vf_stereo3d.c:54
dst
else dst[i][x+y *dst_stride[i]]
Definition: vf_mcdeint.c:160
ANAGLYPH_RB_GRAY
Definition: vf_stereo3d.c:45
INTERLEAVE_ROWS_RL
Definition: vf_stereo3d.c:50
AVFilterContext
An instance of a filter.
Definition: avfilter.h:524
ANAGLYPH_RG_GRAY
Definition: vf_stereo3d.c:46
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:143
out
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31))))#define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac){}void ff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map){AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;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);return NULL;}return ac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;}int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){int use_generic=1;int len=in->nb_samples;int p;if(ac->dc){av_dlog(ac->avr,"%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> out
Definition: audio_convert.c:194
AV_PIX_FMT_GBRP16LE
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:174
ana_convert
static uint8_t ana_convert(const int *coeff, uint8_t *left, uint8_t *right)
Definition: vf_stereo3d.c:409
av_image_copy_plane
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:242
internal.h
internal API functions
ANAGLYPH_YB_HALF
Definition: vf_stereo3d.c:42
AV_PIX_FMT_0RGB
packed RGB 8:8:8, 32bpp, 0RGB0RGB...
Definition: pixfmt.h:214
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:66
MONO_R
Definition: vf_stereo3d.c:48
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:216
StereoCode
StereoCode
Definition: vf_stereo3d.c:32
AV_PIX_FMT_YUV444P10BE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:156
for
for(j=16;j >0;--j)
Definition: h264pred_template.c:467
AV_PIX_FMT_GBRP10LE
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:172
AV_PIX_FMT_RGBA64LE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:210
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