FFmpeg  4.0
vf_stereo3d.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2010 Gordon Schmidt <gordon.schmidt <at> s2000.tu-chemnitz.de>
3  * Copyright (c) 2013-2015 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/intreadwrite.h"
25 #include "libavutil/opt.h"
26 #include "libavutil/parseutils.h"
27 #include "libavutil/pixdesc.h"
28 #include "avfilter.h"
29 #include "drawutils.h"
30 #include "formats.h"
31 #include "internal.h"
32 #include "video.h"
33 #include "stereo3d.h"
34 
35 enum StereoCode {
36  ANAGLYPH_RC_GRAY, // anaglyph red/cyan gray
37  ANAGLYPH_RC_HALF, // anaglyph red/cyan half colored
38  ANAGLYPH_RC_COLOR, // anaglyph red/cyan colored
39  ANAGLYPH_RC_DUBOIS, // anaglyph red/cyan dubois
40  ANAGLYPH_GM_GRAY, // anaglyph green/magenta gray
41  ANAGLYPH_GM_HALF, // anaglyph green/magenta half colored
42  ANAGLYPH_GM_COLOR, // anaglyph green/magenta colored
43  ANAGLYPH_GM_DUBOIS, // anaglyph green/magenta dubois
44  ANAGLYPH_YB_GRAY, // anaglyph yellow/blue gray
45  ANAGLYPH_YB_HALF, // anaglyph yellow/blue half colored
46  ANAGLYPH_YB_COLOR, // anaglyph yellow/blue colored
47  ANAGLYPH_YB_DUBOIS, // anaglyph yellow/blue dubois
48  ANAGLYPH_RB_GRAY, // anaglyph red/blue gray
49  ANAGLYPH_RG_GRAY, // anaglyph red/green gray
50  MONO_L, // mono output for debugging (left eye only)
51  MONO_R, // mono output for debugging (right eye only)
52  INTERLEAVE_ROWS_LR, // row-interleave (left eye has top row)
53  INTERLEAVE_ROWS_RL, // row-interleave (right eye has top row)
54  SIDE_BY_SIDE_LR, // side by side parallel (left eye left, right eye right)
55  SIDE_BY_SIDE_RL, // side by side crosseye (right eye left, left eye right)
56  SIDE_BY_SIDE_2_LR, // side by side parallel with half width resolution
57  SIDE_BY_SIDE_2_RL, // side by side crosseye with half width resolution
58  ABOVE_BELOW_LR, // above-below (left eye above, right eye below)
59  ABOVE_BELOW_RL, // above-below (right eye above, left eye below)
60  ABOVE_BELOW_2_LR, // above-below with half height resolution
61  ABOVE_BELOW_2_RL, // above-below with half height resolution
62  ALTERNATING_LR, // alternating frames (left eye first, right eye second)
63  ALTERNATING_RL, // alternating frames (right eye first, left eye second)
64  CHECKERBOARD_LR, // checkerboard pattern (left eye first, right eye second)
65  CHECKERBOARD_RL, // checkerboard pattern (right eye first, left eye second)
66  INTERLEAVE_COLS_LR, // column-interleave (left eye first, right eye second)
67  INTERLEAVE_COLS_RL, // column-interleave (right eye first, left eye second)
68  HDMI, // HDMI frame pack (left eye first, right eye second)
69  STEREO_CODE_COUNT // TODO: needs autodetection
70 };
71 
72 typedef struct StereoComponent {
73  int format; ///< StereoCode
74  int width, height;
75  int off_left, off_right;
76  int off_lstep, off_rstep;
77  int row_left, row_right;
78  int row_step;
79 } StereoComponent;
80 
81 static const int ana_coeff[][3][6] = {
82  [ANAGLYPH_RB_GRAY] =
83  {{19595, 38470, 7471, 0, 0, 0},
84  { 0, 0, 0, 0, 0, 0},
85  { 0, 0, 0, 19595, 38470, 7471}},
86  [ANAGLYPH_RG_GRAY] =
87  {{19595, 38470, 7471, 0, 0, 0},
88  { 0, 0, 0, 19595, 38470, 7471},
89  { 0, 0, 0, 0, 0, 0}},
90  [ANAGLYPH_RC_GRAY] =
91  {{19595, 38470, 7471, 0, 0, 0},
92  { 0, 0, 0, 19595, 38470, 7471},
93  { 0, 0, 0, 19595, 38470, 7471}},
94  [ANAGLYPH_RC_HALF] =
95  {{19595, 38470, 7471, 0, 0, 0},
96  { 0, 0, 0, 0, 65536, 0},
97  { 0, 0, 0, 0, 0, 65536}},
98  [ANAGLYPH_RC_COLOR] =
99  {{65536, 0, 0, 0, 0, 0},
100  { 0, 0, 0, 0, 65536, 0},
101  { 0, 0, 0, 0, 0, 65536}},
102  [ANAGLYPH_RC_DUBOIS] =
103  {{29891, 32800, 11559, -2849, -5763, -102},
104  {-2627, -2479, -1033, 24804, 48080, -1209},
105  { -997, -1350, -358, -4729, -7403, 80373}},
106  [ANAGLYPH_GM_GRAY] =
107  {{ 0, 0, 0, 19595, 38470, 7471},
108  {19595, 38470, 7471, 0, 0, 0},
109  { 0, 0, 0, 19595, 38470, 7471}},
110  [ANAGLYPH_GM_HALF] =
111  {{ 0, 0, 0, 65536, 0, 0},
112  {19595, 38470, 7471, 0, 0, 0},
113  { 0, 0, 0, 0, 0, 65536}},
114  [ANAGLYPH_GM_COLOR] =
115  {{ 0, 0, 0, 65536, 0, 0},
116  { 0, 65536, 0, 0, 0, 0},
117  { 0, 0, 0, 0, 0, 65536}},
118  [ANAGLYPH_GM_DUBOIS] =
119  {{-4063,-10354, -2556, 34669, 46203, 1573},
120  {18612, 43778, 9372, -1049, -983, -4260},
121  { -983, -1769, 1376, 590, 4915, 61407}},
122  [ANAGLYPH_YB_GRAY] =
123  {{ 0, 0, 0, 19595, 38470, 7471},
124  { 0, 0, 0, 19595, 38470, 7471},
125  {19595, 38470, 7471, 0, 0, 0}},
126  [ANAGLYPH_YB_HALF] =
127  {{ 0, 0, 0, 65536, 0, 0},
128  { 0, 0, 0, 0, 65536, 0},
129  {19595, 38470, 7471, 0, 0, 0}},
130  [ANAGLYPH_YB_COLOR] =
131  {{ 0, 0, 0, 65536, 0, 0},
132  { 0, 0, 0, 0, 65536, 0},
133  { 0, 0, 65536, 0, 0, 0}},
134  [ANAGLYPH_YB_DUBOIS] =
135  {{65535,-12650,18451, -987, -7590, -1049},
136  {-1604, 56032, 4196, 370, 3826, -1049},
137  {-2345,-10676, 1358, 5801, 11416, 56217}},
138 };
139 
140 typedef struct Stereo3DContext {
141  const AVClass *class;
142  StereoComponent in, out;
143  int width, height;
144  const int *ana_matrix[3];
145  int nb_planes;
146  int linesize[4];
147  int pheight[4];
148  int hsub, vsub;
149  int pixstep[4];
150  AVFrame *prev;
151  int blanks;
152  int in_off_left[4], in_off_right[4];
153  AVRational aspect;
154  Stereo3DDSPContext dsp;
155 } Stereo3DContext;
156 
157 #define OFFSET(x) offsetof(Stereo3DContext, x)
158 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
159 
160 static const AVOption stereo3d_options[] = {
161  { "in", "set input format", OFFSET(in.format), AV_OPT_TYPE_INT, {.i64=SIDE_BY_SIDE_LR}, INTERLEAVE_ROWS_LR, STEREO_CODE_COUNT-1, FLAGS, "in"},
162  { "ab2l", "above below half height left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_LR}, 0, 0, FLAGS, "in" },
163  { "ab2r", "above below half height right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_RL}, 0, 0, FLAGS, "in" },
164  { "abl", "above below left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_LR}, 0, 0, FLAGS, "in" },
165  { "abr", "above below right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_RL}, 0, 0, FLAGS, "in" },
166  { "al", "alternating frames left first", 0, AV_OPT_TYPE_CONST, {.i64=ALTERNATING_LR}, 0, 0, FLAGS, "in" },
167  { "ar", "alternating frames right first", 0, AV_OPT_TYPE_CONST, {.i64=ALTERNATING_RL}, 0, 0, FLAGS, "in" },
168  { "sbs2l", "side by side half width left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_LR}, 0, 0, FLAGS, "in" },
169  { "sbs2r", "side by side half width right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_RL}, 0, 0, FLAGS, "in" },
170  { "sbsl", "side by side left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_LR}, 0, 0, FLAGS, "in" },
171  { "sbsr", "side by side right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_RL}, 0, 0, FLAGS, "in" },
172  { "irl", "interleave rows left first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_LR}, 0, 0, FLAGS, "in" },
173  { "irr", "interleave rows right first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_RL}, 0, 0, FLAGS, "in" },
174  { "icl", "interleave columns left first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_COLS_LR}, 0, 0, FLAGS, "in" },
175  { "icr", "interleave columns right first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_COLS_RL}, 0, 0, FLAGS, "in" },
176  { "out", "set output format", OFFSET(out.format), AV_OPT_TYPE_INT, {.i64=ANAGLYPH_RC_DUBOIS}, 0, STEREO_CODE_COUNT-1, FLAGS, "out"},
177  { "ab2l", "above below half height left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_LR}, 0, 0, FLAGS, "out" },
178  { "ab2r", "above below half height right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_2_RL}, 0, 0, FLAGS, "out" },
179  { "abl", "above below left first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_LR}, 0, 0, FLAGS, "out" },
180  { "abr", "above below right first", 0, AV_OPT_TYPE_CONST, {.i64=ABOVE_BELOW_RL}, 0, 0, FLAGS, "out" },
181  { "agmc", "anaglyph green magenta color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_COLOR}, 0, 0, FLAGS, "out" },
182  { "agmd", "anaglyph green magenta dubois", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_DUBOIS}, 0, 0, FLAGS, "out" },
183  { "agmg", "anaglyph green magenta gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_GRAY}, 0, 0, FLAGS, "out" },
184  { "agmh", "anaglyph green magenta half color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_GM_HALF}, 0, 0, FLAGS, "out" },
185  { "al", "alternating frames left first", 0, AV_OPT_TYPE_CONST, {.i64=ALTERNATING_LR}, 0, 0, FLAGS, "out" },
186  { "ar", "alternating frames right first", 0, AV_OPT_TYPE_CONST, {.i64=ALTERNATING_RL}, 0, 0, FLAGS, "out" },
187  { "arbg", "anaglyph red blue gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RB_GRAY}, 0, 0, FLAGS, "out" },
188  { "arcc", "anaglyph red cyan color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_COLOR}, 0, 0, FLAGS, "out" },
189  { "arcd", "anaglyph red cyan dubois", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_DUBOIS}, 0, 0, FLAGS, "out" },
190  { "arcg", "anaglyph red cyan gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_GRAY}, 0, 0, FLAGS, "out" },
191  { "arch", "anaglyph red cyan half color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RC_HALF}, 0, 0, FLAGS, "out" },
192  { "argg", "anaglyph red green gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_RG_GRAY}, 0, 0, FLAGS, "out" },
193  { "aybc", "anaglyph yellow blue color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_COLOR}, 0, 0, FLAGS, "out" },
194  { "aybd", "anaglyph yellow blue dubois", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_DUBOIS}, 0, 0, FLAGS, "out" },
195  { "aybg", "anaglyph yellow blue gray", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_GRAY}, 0, 0, FLAGS, "out" },
196  { "aybh", "anaglyph yellow blue half color", 0, AV_OPT_TYPE_CONST, {.i64=ANAGLYPH_YB_HALF}, 0, 0, FLAGS, "out" },
197  { "irl", "interleave rows left first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_LR}, 0, 0, FLAGS, "out" },
198  { "irr", "interleave rows right first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_ROWS_RL}, 0, 0, FLAGS, "out" },
199  { "ml", "mono left", 0, AV_OPT_TYPE_CONST, {.i64=MONO_L}, 0, 0, FLAGS, "out" },
200  { "mr", "mono right", 0, AV_OPT_TYPE_CONST, {.i64=MONO_R}, 0, 0, FLAGS, "out" },
201  { "sbs2l", "side by side half width left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_LR}, 0, 0, FLAGS, "out" },
202  { "sbs2r", "side by side half width right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_2_RL}, 0, 0, FLAGS, "out" },
203  { "sbsl", "side by side left first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_LR}, 0, 0, FLAGS, "out" },
204  { "sbsr", "side by side right first", 0, AV_OPT_TYPE_CONST, {.i64=SIDE_BY_SIDE_RL}, 0, 0, FLAGS, "out" },
205  { "chl", "checkerboard left first", 0, AV_OPT_TYPE_CONST, {.i64=CHECKERBOARD_LR}, 0, 0, FLAGS, "out" },
206  { "chr", "checkerboard right first", 0, AV_OPT_TYPE_CONST, {.i64=CHECKERBOARD_RL}, 0, 0, FLAGS, "out" },
207  { "icl", "interleave columns left first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_COLS_LR}, 0, 0, FLAGS, "out" },
208  { "icr", "interleave columns right first", 0, AV_OPT_TYPE_CONST, {.i64=INTERLEAVE_COLS_RL}, 0, 0, FLAGS, "out" },
209  { "hdmi", "HDMI frame pack", 0, AV_OPT_TYPE_CONST, {.i64=HDMI}, 0, 0, FLAGS, "out" },
210  { NULL }
211 };
212 
213 AVFILTER_DEFINE_CLASS(stereo3d);
214 
215 static const enum AVPixelFormat anaglyph_pix_fmts[] = {
216  AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
217  AV_PIX_FMT_NONE
218 };
219 
220 static const enum AVPixelFormat other_pix_fmts[] = {
221  AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
222  AV_PIX_FMT_RGB48BE, AV_PIX_FMT_BGR48BE,
223  AV_PIX_FMT_RGB48LE, AV_PIX_FMT_BGR48LE,
224  AV_PIX_FMT_RGBA64BE, AV_PIX_FMT_BGRA64BE,
225  AV_PIX_FMT_RGBA64LE, AV_PIX_FMT_BGRA64LE,
226  AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
227  AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR,
228  AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0,
229  AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR,
230  AV_PIX_FMT_GBRP,
231  AV_PIX_FMT_GBRP9BE, AV_PIX_FMT_GBRP9LE,
232  AV_PIX_FMT_GBRP10BE, AV_PIX_FMT_GBRP10LE,
233  AV_PIX_FMT_GBRP12BE, AV_PIX_FMT_GBRP12LE,
234  AV_PIX_FMT_GBRP14BE, AV_PIX_FMT_GBRP14LE,
235  AV_PIX_FMT_GBRP16BE, AV_PIX_FMT_GBRP16LE,
236  AV_PIX_FMT_YUV410P,
237  AV_PIX_FMT_YUV411P,
238  AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P,
239  AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P,
240  AV_PIX_FMT_YUV440P,
241  AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P,
242  AV_PIX_FMT_YUVJ411P,
243  AV_PIX_FMT_YUVJ420P,
244  AV_PIX_FMT_YUVJ422P,
245  AV_PIX_FMT_YUVJ440P,
246  AV_PIX_FMT_YUVJ444P,
247  AV_PIX_FMT_YUV420P9LE, AV_PIX_FMT_YUVA420P9LE,
248  AV_PIX_FMT_YUV420P9BE, AV_PIX_FMT_YUVA420P9BE,
249  AV_PIX_FMT_YUV422P9LE, AV_PIX_FMT_YUVA422P9LE,
250  AV_PIX_FMT_YUV422P9BE, AV_PIX_FMT_YUVA422P9BE,
251  AV_PIX_FMT_YUV444P9LE, AV_PIX_FMT_YUVA444P9LE,
252  AV_PIX_FMT_YUV444P9BE, AV_PIX_FMT_YUVA444P9BE,
253  AV_PIX_FMT_YUV420P10LE, AV_PIX_FMT_YUVA420P10LE,
254  AV_PIX_FMT_YUV420P10BE, AV_PIX_FMT_YUVA420P10BE,
255  AV_PIX_FMT_YUV422P10LE, AV_PIX_FMT_YUVA422P10LE,
256  AV_PIX_FMT_YUV422P10BE, AV_PIX_FMT_YUVA422P10BE,
257  AV_PIX_FMT_YUV444P10LE, AV_PIX_FMT_YUVA444P10LE,
258  AV_PIX_FMT_YUV444P10BE, AV_PIX_FMT_YUVA444P10BE,
259  AV_PIX_FMT_YUV420P12BE, AV_PIX_FMT_YUV420P12LE,
260  AV_PIX_FMT_YUV422P12BE, AV_PIX_FMT_YUV422P12LE,
261  AV_PIX_FMT_YUV444P12BE, AV_PIX_FMT_YUV444P12LE,
262  AV_PIX_FMT_YUV420P14BE, AV_PIX_FMT_YUV420P14LE,
263  AV_PIX_FMT_YUV422P14BE, AV_PIX_FMT_YUV422P14LE,
264  AV_PIX_FMT_YUV444P14BE, AV_PIX_FMT_YUV444P14LE,
265  AV_PIX_FMT_YUV420P16LE, AV_PIX_FMT_YUVA420P16LE,
266  AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_YUVA420P16BE,
267  AV_PIX_FMT_YUV422P16LE, AV_PIX_FMT_YUVA422P16LE,
268  AV_PIX_FMT_YUV422P16BE, AV_PIX_FMT_YUVA422P16BE,
269  AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUVA444P16LE,
270  AV_PIX_FMT_YUV444P16BE, AV_PIX_FMT_YUVA444P16BE,
271  AV_PIX_FMT_NONE
272 };
273 
274 static int query_formats(AVFilterContext *ctx)
275 {
276  Stereo3DContext *s = ctx->priv;
277  const enum AVPixelFormat *pix_fmts;
278  AVFilterFormats *fmts_list;
279 
280  switch (s->out.format) {
281  case ANAGLYPH_GM_COLOR:
282  case ANAGLYPH_GM_DUBOIS:
283  case ANAGLYPH_GM_GRAY:
284  case ANAGLYPH_GM_HALF:
285  case ANAGLYPH_RB_GRAY:
286  case ANAGLYPH_RC_COLOR:
287  case ANAGLYPH_RC_DUBOIS:
288  case ANAGLYPH_RC_GRAY:
289  case ANAGLYPH_RC_HALF:
290  case ANAGLYPH_RG_GRAY:
291  case ANAGLYPH_YB_COLOR:
292  case ANAGLYPH_YB_DUBOIS:
293  case ANAGLYPH_YB_GRAY:
294  case ANAGLYPH_YB_HALF:
295  pix_fmts = anaglyph_pix_fmts;
296  break;
297  default:
298  pix_fmts = other_pix_fmts;
299  }
300 
301  fmts_list = ff_make_format_list(pix_fmts);
302  if (!fmts_list)
303  return AVERROR(ENOMEM);
304  return ff_set_common_formats(ctx, fmts_list);
305 }
306 
307 static inline uint8_t ana_convert(const int *coeff, const uint8_t *left, const uint8_t *right)
308 {
309  int sum;
310 
311  sum = coeff[0] * left[0] + coeff[3] * right[0]; //red in
312  sum += coeff[1] * left[1] + coeff[4] * right[1]; //green in
313  sum += coeff[2] * left[2] + coeff[5] * right[2]; //blue in
314 
315  return av_clip_uint8(sum >> 16);
316 }
317 
318 static void anaglyph_ic(uint8_t *dst, uint8_t *lsrc, uint8_t *rsrc,
319  ptrdiff_t dst_linesize, ptrdiff_t l_linesize, ptrdiff_t r_linesize,
320  int width, int height,
321  const int *ana_matrix_r, const int *ana_matrix_g, const int *ana_matrix_b)
322 {
323  int x, y, o;
324 
325  for (y = 0; y < height; y++) {
326  for (o = 0, x = 0; x < width; x++, o+= 3) {
327  dst[o ] = ana_convert(ana_matrix_r, lsrc + o * 2, rsrc + o * 2);
328  dst[o + 1] = ana_convert(ana_matrix_g, lsrc + o * 2, rsrc + o * 2);
329  dst[o + 2] = ana_convert(ana_matrix_b, lsrc + o * 2, rsrc + o * 2);
330  }
331 
332  dst += dst_linesize;
333  lsrc += l_linesize;
334  rsrc += r_linesize;
335  }
336 }
337 
338 static void anaglyph(uint8_t *dst, uint8_t *lsrc, uint8_t *rsrc,
339  ptrdiff_t dst_linesize, ptrdiff_t l_linesize, ptrdiff_t r_linesize,
340  int width, int height,
341  const int *ana_matrix_r, const int *ana_matrix_g, const int *ana_matrix_b)
342 {
343  int x, y, o;
344 
345  for (y = 0; y < height; y++) {
346  for (o = 0, x = 0; x < width; x++, o+= 3) {
347  dst[o ] = ana_convert(ana_matrix_r, lsrc + o, rsrc + o);
348  dst[o + 1] = ana_convert(ana_matrix_g, lsrc + o, rsrc + o);
349  dst[o + 2] = ana_convert(ana_matrix_b, lsrc + o, rsrc + o);
350  }
351 
352  dst += dst_linesize;
353  lsrc += l_linesize;
354  rsrc += r_linesize;
355  }
356 }
357 
358 static int config_output(AVFilterLink *outlink)
359 {
360  AVFilterContext *ctx = outlink->src;
361  AVFilterLink *inlink = ctx->inputs[0];
362  Stereo3DContext *s = ctx->priv;
363  AVRational fps = inlink->frame_rate;
364  AVRational tb = inlink->time_base;
365  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format);
366  int ret;
367  s->aspect = inlink->sample_aspect_ratio;
368 
369  switch (s->in.format) {
370  case INTERLEAVE_COLS_LR:
371  case INTERLEAVE_COLS_RL:
372  case SIDE_BY_SIDE_2_LR:
373  case SIDE_BY_SIDE_LR:
374  case SIDE_BY_SIDE_2_RL:
375  case SIDE_BY_SIDE_RL:
376  if (inlink->w & 1) {
377  av_log(ctx, AV_LOG_ERROR, "width must be even\n");
378  return AVERROR_INVALIDDATA;
379  }
380  break;
381  case INTERLEAVE_ROWS_LR:
382  case INTERLEAVE_ROWS_RL:
383  case ABOVE_BELOW_2_LR:
384  case ABOVE_BELOW_LR:
385  case ABOVE_BELOW_2_RL:
386  case ABOVE_BELOW_RL:
387  if (inlink->h & 1) {
388  av_log(ctx, AV_LOG_ERROR, "height must be even\n");
389  return AVERROR_INVALIDDATA;
390  }
391  break;
392  }
393 
394  s->in.width =
395  s->width = inlink->w;
396  s->in.height =
397  s->height = inlink->h;
398  s->in.off_lstep =
399  s->in.off_rstep =
400  s->in.off_left =
401  s->in.off_right =
402  s->in.row_left =
403  s->in.row_right = 0;
404  s->in.row_step = 1;
405 
406  switch (s->in.format) {
407  case SIDE_BY_SIDE_2_LR:
408  s->aspect.num *= 2;
409  case SIDE_BY_SIDE_LR:
410  s->width = inlink->w / 2;
411  s->in.off_right = s->width;
412  break;
413  case SIDE_BY_SIDE_2_RL:
414  s->aspect.num *= 2;
415  case SIDE_BY_SIDE_RL:
416  s->width = inlink->w / 2;
417  s->in.off_left = s->width;
418  break;
419  case ABOVE_BELOW_2_LR:
420  s->aspect.den *= 2;
421  case ABOVE_BELOW_LR:
422  s->in.row_right =
423  s->height = inlink->h / 2;
424  break;
425  case ABOVE_BELOW_2_RL:
426  s->aspect.den *= 2;
427  case ABOVE_BELOW_RL:
428  s->in.row_left =
429  s->height = inlink->h / 2;
430  break;
431  case ALTERNATING_RL:
432  case ALTERNATING_LR:
433  fps.den *= 2;
434  tb.num *= 2;
435  break;
436  case INTERLEAVE_COLS_RL:
437  case INTERLEAVE_COLS_LR:
438  s->width = inlink->w / 2;
439  break;
440  case INTERLEAVE_ROWS_LR:
441  case INTERLEAVE_ROWS_RL:
442  s->in.row_step = 2;
443  if (s->in.format == INTERLEAVE_ROWS_RL)
444  s->in.off_lstep = 1;
445  else
446  s->in.off_rstep = 1;
447  if (s->out.format != CHECKERBOARD_LR &&
448  s->out.format != CHECKERBOARD_RL)
449  s->height = inlink->h / 2;
450  break;
451  default:
452  av_log(ctx, AV_LOG_ERROR, "input format %d is not supported\n", s->in.format);
453  return AVERROR(EINVAL);
454  }
455 
456  s->out.width = s->width;
457  s->out.height = s->height;
458  s->out.off_lstep =
459  s->out.off_rstep =
460  s->out.off_left =
461  s->out.off_right =
462  s->out.row_left =
463  s->out.row_right = 0;
464  s->out.row_step = 1;
465 
466  switch (s->out.format) {
467  case ANAGLYPH_RB_GRAY:
468  case ANAGLYPH_RG_GRAY:
469  case ANAGLYPH_RC_GRAY:
470  case ANAGLYPH_RC_HALF:
471  case ANAGLYPH_RC_COLOR:
472  case ANAGLYPH_RC_DUBOIS:
473  case ANAGLYPH_GM_GRAY:
474  case ANAGLYPH_GM_HALF:
475  case ANAGLYPH_GM_COLOR:
476  case ANAGLYPH_GM_DUBOIS:
477  case ANAGLYPH_YB_GRAY:
478  case ANAGLYPH_YB_HALF:
479  case ANAGLYPH_YB_COLOR:
480  case ANAGLYPH_YB_DUBOIS: {
481  uint8_t rgba_map[4];
482 
483  ff_fill_rgba_map(rgba_map, outlink->format);
484  s->ana_matrix[rgba_map[0]] = &ana_coeff[s->out.format][0][0];
485  s->ana_matrix[rgba_map[1]] = &ana_coeff[s->out.format][1][0];
486  s->ana_matrix[rgba_map[2]] = &ana_coeff[s->out.format][2][0];
487  break;
488  }
489  case SIDE_BY_SIDE_2_LR:
490  s->aspect.den *= 2;
491  case SIDE_BY_SIDE_LR:
492  s->out.width = s->width * 2;
493  s->out.off_right = s->width;
494  break;
495  case SIDE_BY_SIDE_2_RL:
496  s->aspect.den *= 2;
497  case SIDE_BY_SIDE_RL:
498  s->out.width = s->width * 2;
499  s->out.off_left = s->width;
500  break;
501  case ABOVE_BELOW_2_LR:
502  s->aspect.num *= 2;
503  case ABOVE_BELOW_LR:
504  s->out.height = s->height * 2;
505  s->out.row_right = s->height;
506  break;
507  case HDMI:
508  if (s->height != 720 && s->height != 1080) {
509  av_log(ctx, AV_LOG_ERROR, "Only 720 and 1080 height supported\n");
510  return AVERROR(EINVAL);
511  }
512 
513  s->blanks = s->height / 24;
514  s->out.height = s->height * 2 + s->blanks;
515  s->out.row_right = s->height + s->blanks;
516  break;
517  case ABOVE_BELOW_2_RL:
518  s->aspect.num *= 2;
519  case ABOVE_BELOW_RL:
520  s->out.height = s->height * 2;
521  s->out.row_left = s->height;
522  break;
523  case INTERLEAVE_ROWS_LR:
524  s->in.row_step = 1 + (s->in.format == INTERLEAVE_ROWS_RL);
525  s->out.row_step = 2;
526  s->out.height = s->height * 2;
527  s->out.off_rstep = 1;
528  break;
529  case INTERLEAVE_ROWS_RL:
530  s->in.row_step = 1 + (s->in.format == INTERLEAVE_ROWS_LR);
531  s->out.row_step = 2;
532  s->out.height = s->height * 2;
533  s->out.off_lstep = 1;
534  break;
535  case MONO_R:
536  if (s->in.format != INTERLEAVE_COLS_LR) {
537  s->in.off_left = s->in.off_right;
538  s->in.row_left = s->in.row_right;
539  }
540  if (s->in.format == INTERLEAVE_ROWS_LR)
541  FFSWAP(int, s->in.off_lstep, s->in.off_rstep);
542  break;
543  case MONO_L:
544  if (s->in.format == INTERLEAVE_ROWS_RL)
545  FFSWAP(int, s->in.off_lstep, s->in.off_rstep);
546  break;
547  case ALTERNATING_RL:
548  case ALTERNATING_LR:
549  fps.num *= 2;
550  tb.den *= 2;
551  break;
552  case CHECKERBOARD_LR:
553  case CHECKERBOARD_RL:
554  s->out.width = s->width * 2;
555  break;
556  case INTERLEAVE_COLS_LR:
557  case INTERLEAVE_COLS_RL:
558  s->out.width = s->width * 2;
559  break;
560  default:
561  av_log(ctx, AV_LOG_ERROR, "output format %d is not supported\n", s->out.format);
562  return AVERROR(EINVAL);
563  }
564 
565  if (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL) {
566  if ((s->in.format & 1) != (s->out.format & 1)) {
567  FFSWAP(int, s->in.row_left, s->in.row_right);
568  FFSWAP(int, s->in.off_lstep, s->in.off_rstep);
569  FFSWAP(int, s->in.off_left, s->in.off_right);
570  FFSWAP(int, s->out.row_left, s->out.row_right);
571  FFSWAP(int, s->out.off_lstep, s->out.off_rstep);
572  FFSWAP(int, s->out.off_left, s->out.off_right);
573  }
574  }
575 
576  outlink->w = s->out.width;
577  outlink->h = s->out.height;
578  outlink->frame_rate = fps;
579  outlink->time_base = tb;
580  outlink->sample_aspect_ratio = s->aspect;
581 
582  if ((ret = av_image_fill_linesizes(s->linesize, outlink->format, s->width)) < 0)
583  return ret;
584  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
585  av_image_fill_max_pixsteps(s->pixstep, NULL, desc);
586  s->pheight[1] = s->pheight[2] = AV_CEIL_RSHIFT(s->height, desc->log2_chroma_h);
587  s->pheight[0] = s->pheight[3] = s->height;
588  s->hsub = desc->log2_chroma_w;
589  s->vsub = desc->log2_chroma_h;
590 
591  s->dsp.anaglyph = anaglyph;
592  if (ARCH_X86)
593  ff_stereo3d_init_x86(&s->dsp);
594 
595  return 0;
596 }
597 
598 typedef struct ThreadData {
599  AVFrame *ileft, *iright;
600  AVFrame *out;
601 } ThreadData;
602 
603 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
604 {
605  Stereo3DContext *s = ctx->priv;
606  ThreadData *td = arg;
607  AVFrame *ileft = td->ileft;
608  AVFrame *iright = td->iright;
609  AVFrame *out = td->out;
610  int height = s->out.height;
611  int start = (height * jobnr ) / nb_jobs;
612  int end = (height * (jobnr+1)) / nb_jobs;
613  const int **ana_matrix = s->ana_matrix;
614 
615  s->dsp.anaglyph(out->data[0] + out->linesize[0] * start,
616  ileft ->data[0] + s->in_off_left [0] + ileft->linesize[0] * start * s->in.row_step,
617  iright->data[0] + s->in_off_right[0] + iright->linesize[0] * start * s->in.row_step,
618  out->linesize[0],
619  ileft->linesize[0] * s->in.row_step,
620  iright->linesize[0] * s->in.row_step,
621  s->out.width, end - start,
622  ana_matrix[0], ana_matrix[1], ana_matrix[2]);
623 
624  return 0;
625 }
626 
627 static void interleave_cols_to_any(Stereo3DContext *s, int *out_off, int p, AVFrame *in, AVFrame *out, int d)
628 {
629  int y, x;
630 
631  for (y = 0; y < s->pheight[p]; y++) {
632  const uint8_t *src = (const uint8_t*)in->data[p] + y * in->linesize[p] + d * s->pixstep[p];
633  uint8_t *dst = out->data[p] + out_off[p] + y * out->linesize[p] * s->out.row_step;
634 
635  switch (s->pixstep[p]) {
636  case 1:
637  for (x = 0; x < s->linesize[p]; x++)
638  dst[x] = src[x * 2];
639  break;
640  case 2:
641  for (x = 0; x < s->linesize[p]; x+=2)
642  AV_WN16(&dst[x], AV_RN16(&src[x * 2]));
643  break;
644  case 3:
645  for (x = 0; x < s->linesize[p]; x+=3)
646  AV_WB24(&dst[x], AV_RB24(&src[x * 2]));
647  break;
648  case 4:
649  for (x = 0; x < s->linesize[p]; x+=4)
650  AV_WN32(&dst[x], AV_RN32(&src[x * 2]));
651  break;
652  case 6:
653  for (x = 0; x < s->linesize[p]; x+=6)
654  AV_WB48(&dst[x], AV_RB48(&src[x * 2]));
655  break;
656  case 8:
657  for (x = 0; x < s->linesize[p]; x+=8)
658  AV_WN64(&dst[x], AV_RN64(&src[x * 2]));
659  break;
660  }
661  }
662 }
663 
664 static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
665 {
666  AVFilterContext *ctx = inlink->dst;
667  Stereo3DContext *s = ctx->priv;
668  AVFilterLink *outlink = ctx->outputs[0];
669  AVFrame *out, *oleft, *oright, *ileft, *iright;
670  int out_off_left[4], out_off_right[4];
671  int i, ret;
672 
673  if (s->in.format == s->out.format)
674  return ff_filter_frame(outlink, inpicref);
675 
676  switch (s->out.format) {
677  case ALTERNATING_LR:
678  case ALTERNATING_RL:
679  if (!s->prev) {
680  s->prev = inpicref;
681  return 0;
682  }
683  break;
684  };
685 
686  switch (s->in.format) {
687  case ALTERNATING_LR:
688  case ALTERNATING_RL:
689  if (!s->prev) {
690  s->prev = inpicref;
691  return 0;
692  }
693  ileft = s->prev;
694  iright = inpicref;
695  if (s->in.format == ALTERNATING_RL)
696  FFSWAP(AVFrame *, ileft, iright);
697  break;
698  default:
699  ileft = iright = inpicref;
700  };
701 
702  if ((s->out.format == ALTERNATING_LR ||
703  s->out.format == ALTERNATING_RL) &&
704  (s->in.format == SIDE_BY_SIDE_LR ||
705  s->in.format == SIDE_BY_SIDE_RL ||
706  s->in.format == SIDE_BY_SIDE_2_LR ||
707  s->in.format == SIDE_BY_SIDE_2_RL ||
708  s->in.format == ABOVE_BELOW_LR ||
709  s->in.format == ABOVE_BELOW_RL ||
710  s->in.format == ABOVE_BELOW_2_LR ||
711  s->in.format == ABOVE_BELOW_2_RL ||
712  s->in.format == INTERLEAVE_ROWS_LR ||
713  s->in.format == INTERLEAVE_ROWS_RL)) {
714  oright = av_frame_clone(s->prev);
715  oleft = av_frame_clone(s->prev);
716  if (!oright || !oleft) {
717  av_frame_free(&oright);
718  av_frame_free(&oleft);
719  av_frame_free(&s->prev);
720  av_frame_free(&inpicref);
721  return AVERROR(ENOMEM);
722  }
723  } else if ((s->out.format == MONO_L ||
724  s->out.format == MONO_R) &&
725  (s->in.format == SIDE_BY_SIDE_LR ||
726  s->in.format == SIDE_BY_SIDE_RL ||
727  s->in.format == SIDE_BY_SIDE_2_LR ||
728  s->in.format == SIDE_BY_SIDE_2_RL ||
729  s->in.format == ABOVE_BELOW_LR ||
730  s->in.format == ABOVE_BELOW_RL ||
731  s->in.format == ABOVE_BELOW_2_LR ||
732  s->in.format == ABOVE_BELOW_2_RL ||
733  s->in.format == INTERLEAVE_ROWS_LR ||
734  s->in.format == INTERLEAVE_ROWS_RL)) {
735  out = oleft = oright = av_frame_clone(inpicref);
736  if (!out) {
737  av_frame_free(&s->prev);
738  av_frame_free(&inpicref);
739  return AVERROR(ENOMEM);
740  }
741  } else if ((s->out.format == MONO_L && s->in.format == ALTERNATING_LR) ||
742  (s->out.format == MONO_R && s->in.format == ALTERNATING_RL)) {
743  s->prev->pts /= 2;
744  ret = ff_filter_frame(outlink, s->prev);
745  av_frame_free(&inpicref);
746  s->prev = NULL;
747  return ret;
748  } else if ((s->out.format == MONO_L && s->in.format == ALTERNATING_RL) ||
749  (s->out.format == MONO_R && s->in.format == ALTERNATING_LR)) {
750  av_frame_free(&s->prev);
751  inpicref->pts /= 2;
752  return ff_filter_frame(outlink, inpicref);
753  } else if ((s->out.format == ALTERNATING_LR && s->in.format == ALTERNATING_RL) ||
754  (s->out.format == ALTERNATING_RL && s->in.format == ALTERNATING_LR)) {
755  FFSWAP(int64_t, s->prev->pts, inpicref->pts);
756  ff_filter_frame(outlink, inpicref);
757  ret = ff_filter_frame(outlink, s->prev);
758  s->prev = NULL;
759  return ret;
760  } else {
761  out = oleft = oright = ff_get_video_buffer(outlink, outlink->w, outlink->h);
762  if (!out) {
763  av_frame_free(&s->prev);
764  av_frame_free(&inpicref);
765  return AVERROR(ENOMEM);
766  }
767  av_frame_copy_props(out, inpicref);
768 
769  if (s->out.format == ALTERNATING_LR ||
770  s->out.format == ALTERNATING_RL) {
771  oright = ff_get_video_buffer(outlink, outlink->w, outlink->h);
772  if (!oright) {
773  av_frame_free(&oleft);
774  av_frame_free(&s->prev);
775  av_frame_free(&inpicref);
776  return AVERROR(ENOMEM);
777  }
778  av_frame_copy_props(oright, s->prev);
779  }
780  }
781 
782  for (i = 0; i < 4; i++) {
783  int hsub = i == 1 || i == 2 ? s->hsub : 0;
784  int vsub = i == 1 || i == 2 ? s->vsub : 0;
785  s->in_off_left[i] = (AV_CEIL_RSHIFT(s->in.row_left, vsub) + s->in.off_lstep) * ileft->linesize[i] + AV_CEIL_RSHIFT(s->in.off_left * s->pixstep[i], hsub);
786  s->in_off_right[i] = (AV_CEIL_RSHIFT(s->in.row_right, vsub) + s->in.off_rstep) * iright->linesize[i] + AV_CEIL_RSHIFT(s->in.off_right * s->pixstep[i], hsub);
787  out_off_left[i] = (AV_CEIL_RSHIFT(s->out.row_left, vsub) + s->out.off_lstep) * oleft->linesize[i] + AV_CEIL_RSHIFT(s->out.off_left * s->pixstep[i], hsub);
788  out_off_right[i] = (AV_CEIL_RSHIFT(s->out.row_right, vsub) + s->out.off_rstep) * oright->linesize[i] + AV_CEIL_RSHIFT(s->out.off_right * s->pixstep[i], hsub);
789  }
790 
791  switch (s->out.format) {
792  case ALTERNATING_LR:
793  case ALTERNATING_RL:
794  switch (s->in.format) {
795  case INTERLEAVE_ROWS_LR:
796  case INTERLEAVE_ROWS_RL:
797  for (i = 0; i < s->nb_planes; i++) {
798  oleft->linesize[i] *= 2;
799  oright->linesize[i] *= 2;
800  }
801  case ABOVE_BELOW_LR:
802  case ABOVE_BELOW_RL:
803  case ABOVE_BELOW_2_LR:
804  case ABOVE_BELOW_2_RL:
805  case SIDE_BY_SIDE_LR:
806  case SIDE_BY_SIDE_RL:
807  case SIDE_BY_SIDE_2_LR:
808  case SIDE_BY_SIDE_2_RL:
809  oleft->width = outlink->w;
810  oright->width = outlink->w;
811  oleft->height = outlink->h;
812  oright->height = outlink->h;
813 
814  for (i = 0; i < s->nb_planes; i++) {
815  oleft->data[i] += s->in_off_left[i];
816  oright->data[i] += s->in_off_right[i];
817  }
818  break;
819  default:
820  goto copy;
821  break;
822  }
823  break;
824  case HDMI:
825  for (i = 0; i < s->nb_planes; i++) {
826  int j, h = s->height >> ((i == 1 || i == 2) ? s->vsub : 0);
827  int b = (s->blanks) >> ((i == 1 || i == 2) ? s->vsub : 0);
828 
829  for (j = h; j < h + b; j++)
830  memset(oleft->data[i] + j * s->linesize[i], 0, s->linesize[i]);
831  }
832  case SIDE_BY_SIDE_LR:
833  case SIDE_BY_SIDE_RL:
834  case SIDE_BY_SIDE_2_LR:
835  case SIDE_BY_SIDE_2_RL:
836  case ABOVE_BELOW_LR:
837  case ABOVE_BELOW_RL:
838  case ABOVE_BELOW_2_LR:
839  case ABOVE_BELOW_2_RL:
840  case INTERLEAVE_ROWS_LR:
841  case INTERLEAVE_ROWS_RL:
842 copy:
843  if (s->in.format == INTERLEAVE_COLS_LR ||
844  s->in.format == INTERLEAVE_COLS_RL) {
845  for (i = 0; i < s->nb_planes; i++) {
846  int d = (s->in.format & 1) != (s->out.format & 1);
847 
848  interleave_cols_to_any(s, out_off_left, i, ileft, oleft, d);
849  interleave_cols_to_any(s, out_off_right, i, iright, oright, !d);
850  }
851  } else {
852  for (i = 0; i < s->nb_planes; i++) {
853  av_image_copy_plane(oleft->data[i] + out_off_left[i],
854  oleft->linesize[i] * s->out.row_step,
855  ileft->data[i] + s->in_off_left[i],
856  ileft->linesize[i] * s->in.row_step,
857  s->linesize[i], s->pheight[i]);
858  av_image_copy_plane(oright->data[i] + out_off_right[i],
859  oright->linesize[i] * s->out.row_step,
860  iright->data[i] + s->in_off_right[i],
861  iright->linesize[i] * s->in.row_step,
862  s->linesize[i], s->pheight[i]);
863  }
864  }
865  break;
866  case MONO_L:
867  iright = ileft;
868  case MONO_R:
869  switch (s->in.format) {
870  case INTERLEAVE_ROWS_LR:
871  case INTERLEAVE_ROWS_RL:
872  for (i = 0; i < s->nb_planes; i++) {
873  out->linesize[i] *= 2;
874  }
875  case ABOVE_BELOW_LR:
876  case ABOVE_BELOW_RL:
877  case ABOVE_BELOW_2_LR:
878  case ABOVE_BELOW_2_RL:
879  case SIDE_BY_SIDE_LR:
880  case SIDE_BY_SIDE_RL:
881  case SIDE_BY_SIDE_2_LR:
882  case SIDE_BY_SIDE_2_RL:
883  out->width = outlink->w;
884  out->height = outlink->h;
885 
886  for (i = 0; i < s->nb_planes; i++) {
887  out->data[i] += s->in_off_left[i];
888  }
889  break;
890  case INTERLEAVE_COLS_LR:
891  case INTERLEAVE_COLS_RL:
892  for (i = 0; i < s->nb_planes; i++) {
893  const int d = (s->in.format & 1) != (s->out.format & 1);
894 
895  interleave_cols_to_any(s, out_off_right, i, iright, out, d);
896  }
897  break;
898  default:
899  for (i = 0; i < s->nb_planes; i++) {
900  av_image_copy_plane(out->data[i], out->linesize[i],
901  iright->data[i] + s->in_off_left[i],
902  iright->linesize[i] * s->in.row_step,
903  s->linesize[i], s->pheight[i]);
904  }
905  break;
906  }
907  break;
908  case ANAGLYPH_RB_GRAY:
909  case ANAGLYPH_RG_GRAY:
910  case ANAGLYPH_RC_GRAY:
911  case ANAGLYPH_RC_HALF:
912  case ANAGLYPH_RC_COLOR:
913  case ANAGLYPH_RC_DUBOIS:
914  case ANAGLYPH_GM_GRAY:
915  case ANAGLYPH_GM_HALF:
916  case ANAGLYPH_GM_COLOR:
917  case ANAGLYPH_GM_DUBOIS:
918  case ANAGLYPH_YB_GRAY:
919  case ANAGLYPH_YB_HALF:
920  case ANAGLYPH_YB_COLOR:
921  case ANAGLYPH_YB_DUBOIS: {
922  if (s->in.format == INTERLEAVE_COLS_LR ||
923  s->in.format == INTERLEAVE_COLS_RL) {
924  const int d = (s->in.format & 1);
925 
926  anaglyph_ic(out->data[0],
927  ileft ->data[0] + s->in_off_left [0] + d * 3,
928  iright->data[0] + s->in_off_right[0] + (!d) * 3,
929  out->linesize[0],
930  ileft->linesize[0] * s->in.row_step,
931  iright->linesize[0] * s->in.row_step,
932  s->out.width, s->out.height,
933  s->ana_matrix[0], s->ana_matrix[1], s->ana_matrix[2]);
934  } else {
935  ThreadData td;
936 
937  td.ileft = ileft; td.iright = iright; td.out = out;
938  ctx->internal->execute(ctx, filter_slice, &td, NULL,
939  FFMIN(s->out.height, ff_filter_get_nb_threads(ctx)));
940  }
941  break;
942  }
943  case CHECKERBOARD_RL:
944  case CHECKERBOARD_LR:
945  for (i = 0; i < s->nb_planes; i++) {
946  int x, y;
947 
948  for (y = 0; y < s->pheight[i]; y++) {
949  uint8_t *dst = out->data[i] + out->linesize[i] * y;
950  const int d1 = (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL) && (s->in.format & 1) != (s->out.format & 1);
951  const int d2 = (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL) ? !d1 : 0;
952  const int m = 1 + (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL);
953  uint8_t *left = ileft->data[i] + ileft->linesize[i] * y + s->in_off_left[i] + d1 * s->pixstep[i];
954  uint8_t *right = iright->data[i] + iright->linesize[i] * y + s->in_off_right[i] + d2 * s->pixstep[i];
955  int p, b;
956 
957  if (s->out.format == CHECKERBOARD_RL && s->in.format != INTERLEAVE_COLS_LR && s->in.format != INTERLEAVE_COLS_RL)
958  FFSWAP(uint8_t*, left, right);
959  switch (s->pixstep[i]) {
960  case 1:
961  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=2, p++, b+=2) {
962  dst[x ] = (b&1) == (y&1) ? left[p*m] : right[p*m];
963  dst[x+1] = (b&1) != (y&1) ? left[p*m] : right[p*m];
964  }
965  break;
966  case 2:
967  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=4, p+=2, b+=2) {
968  AV_WN16(&dst[x ], (b&1) == (y&1) ? AV_RN16(&left[p*m]) : AV_RN16(&right[p*m]));
969  AV_WN16(&dst[x+2], (b&1) != (y&1) ? AV_RN16(&left[p*m]) : AV_RN16(&right[p*m]));
970  }
971  break;
972  case 3:
973  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=6, p+=3, b+=2) {
974  AV_WB24(&dst[x ], (b&1) == (y&1) ? AV_RB24(&left[p*m]) : AV_RB24(&right[p*m]));
975  AV_WB24(&dst[x+3], (b&1) != (y&1) ? AV_RB24(&left[p*m]) : AV_RB24(&right[p*m]));
976  }
977  break;
978  case 4:
979  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=8, p+=4, b+=2) {
980  AV_WN32(&dst[x ], (b&1) == (y&1) ? AV_RN32(&left[p*m]) : AV_RN32(&right[p*m]));
981  AV_WN32(&dst[x+4], (b&1) != (y&1) ? AV_RN32(&left[p*m]) : AV_RN32(&right[p*m]));
982  }
983  break;
984  case 6:
985  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=12, p+=6, b+=2) {
986  AV_WB48(&dst[x ], (b&1) == (y&1) ? AV_RB48(&left[p*m]) : AV_RB48(&right[p*m]));
987  AV_WB48(&dst[x+6], (b&1) != (y&1) ? AV_RB48(&left[p*m]) : AV_RB48(&right[p*m]));
988  }
989  break;
990  case 8:
991  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=16, p+=8, b+=2) {
992  AV_WN64(&dst[x ], (b&1) == (y&1) ? AV_RN64(&left[p*m]) : AV_RN64(&right[p*m]));
993  AV_WN64(&dst[x+8], (b&1) != (y&1) ? AV_RN64(&left[p*m]) : AV_RN64(&right[p*m]));
994  }
995  break;
996  }
997  }
998  }
999  break;
1000  case INTERLEAVE_COLS_LR:
1001  case INTERLEAVE_COLS_RL:
1002  for (i = 0; i < s->nb_planes; i++) {
1003  const int d = (s->in.format == INTERLEAVE_COLS_LR || s->in.format == INTERLEAVE_COLS_RL);
1004  const int m = 1 + d;
1005  int x, y;
1006 
1007  for (y = 0; y < s->pheight[i]; y++) {
1008  uint8_t *dst = out->data[i] + out->linesize[i] * y;
1009  uint8_t *left = ileft->data[i] + ileft->linesize[i] * y * s->in.row_step + s->in_off_left[i] + d * s->pixstep[i];
1010  uint8_t *right = iright->data[i] + iright->linesize[i] * y * s->in.row_step + s->in_off_right[i];
1011  int p, b;
1012 
1013  if (s->out.format == INTERLEAVE_COLS_LR)
1014  FFSWAP(uint8_t*, left, right);
1015 
1016  switch (s->pixstep[i]) {
1017  case 1:
1018  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=2, p++, b+=2) {
1019  dst[x ] = b&1 ? left[p*m] : right[p*m];
1020  dst[x+1] = !(b&1) ? left[p*m] : right[p*m];
1021  }
1022  break;
1023  case 2:
1024  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=4, p+=2, b+=2) {
1025  AV_WN16(&dst[x ], b&1 ? AV_RN16(&left[p*m]) : AV_RN16(&right[p*m]));
1026  AV_WN16(&dst[x+2], !(b&1) ? AV_RN16(&left[p*m]) : AV_RN16(&right[p*m]));
1027  }
1028  break;
1029  case 3:
1030  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=6, p+=3, b+=2) {
1031  AV_WB24(&dst[x ], b&1 ? AV_RB24(&left[p*m]) : AV_RB24(&right[p*m]));
1032  AV_WB24(&dst[x+3], !(b&1) ? AV_RB24(&left[p*m]) : AV_RB24(&right[p*m]));
1033  }
1034  break;
1035  case 4:
1036  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=8, p+=4, b+=2) {
1037  AV_WN32(&dst[x ], b&1 ? AV_RN32(&left[p*m]) : AV_RN32(&right[p*m]));
1038  AV_WN32(&dst[x+4], !(b&1) ? AV_RN32(&left[p*m]) : AV_RN32(&right[p*m]));
1039  }
1040  break;
1041  case 6:
1042  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=12, p+=6, b+=2) {
1043  AV_WB48(&dst[x ], b&1 ? AV_RB48(&left[p*m]) : AV_RB48(&right[p*m]));
1044  AV_WB48(&dst[x+6], !(b&1) ? AV_RB48(&left[p*m]) : AV_RB48(&right[p*m]));
1045  }
1046  break;
1047  case 8:
1048  for (x = 0, b = 0, p = 0; x < s->linesize[i] * 2; x+=16, p+=8, b+=2) {
1049  AV_WN64(&dst[x ], b&1 ? AV_RN64(&left[p*m]) : AV_RN64(&right[p*m]));
1050  AV_WN64(&dst[x+8], !(b&1) ? AV_RN64(&left[p*m]) : AV_RN64(&right[p*m]));
1051  }
1052  break;
1053  }
1054  }
1055  }
1056  break;
1057  default:
1058  av_assert0(0);
1059  }
1060 
1061  if (oright != oleft) {
1062  if (s->out.format == ALTERNATING_LR)
1063  FFSWAP(AVFrame *, oleft, oright);
1064  oright->pts = s->prev->pts * 2;
1065  ff_filter_frame(outlink, oright);
1066  out = oleft;
1067  oleft->pts = s->prev->pts + inpicref->pts;
1068  av_frame_free(&s->prev);
1069  s->prev = inpicref;
1070  } else if (s->in.format == ALTERNATING_LR ||
1071  s->in.format == ALTERNATING_RL) {
1072  out->pts = s->prev->pts / 2;
1073  av_frame_free(&s->prev);
1074  av_frame_free(&inpicref);
1075  } else {
1076  av_frame_free(&s->prev);
1077  av_frame_free(&inpicref);
1078  }
1079  out->sample_aspect_ratio = s->aspect;
1080  return ff_filter_frame(outlink, out);
1081 }
1082 
1083 static av_cold void uninit(AVFilterContext *ctx)
1084 {
1085  Stereo3DContext *s = ctx->priv;
1086 
1087  av_frame_free(&s->prev);
1088 }
1089 
1090 static const AVFilterPad stereo3d_inputs[] = {
1091  {
1092  .name = "default",
1093  .type = AVMEDIA_TYPE_VIDEO,
1094  .filter_frame = filter_frame,
1095  },
1096  { NULL }
1097 };
1098 
1099 static const AVFilterPad stereo3d_outputs[] = {
1100  {
1101  .name = "default",
1102  .type = AVMEDIA_TYPE_VIDEO,
1103  .config_props = config_output,
1104  },
1105  { NULL }
1106 };
1107 
1108 AVFilter ff_vf_stereo3d = {
1109  .name = "stereo3d",
1110  .description = NULL_IF_CONFIG_SMALL("Convert video stereoscopic 3D view."),
1111  .priv_size = sizeof(Stereo3DContext),
1112  .uninit = uninit,
1113  .query_formats = query_formats,
1114  .inputs = stereo3d_inputs,
1115  .outputs = stereo3d_outputs,
1116  .priv_class = &stereo3d_class,
1117  .flags = AVFILTER_FLAG_SLICE_THREADS,
1118 };
NULL
#define NULL
Definition: coverity.c:32
AV_PIX_FMT_YUV422P9BE
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:162
AV_RB48
#define AV_RB48(x)
Definition: intreadwrite.h:472
s
const char * s
Definition: avisynth_c.h:768
AV_PIX_FMT_YUV444P14BE
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:248
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
ThreadData::out
AVFrame * out
Definition: af_aiir.c:31
AV_PIX_FMT_YUV420P14LE
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:241
copy
static void copy(const float *p1, float *p2, const int length)
Definition: vf_vaguedenoiser.c:185
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2363
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:218
h
h
Definition: vp9dsp_template.c:2038
Stereo3DContext::in
StereoComponent in
Definition: vf_stereo3d.c:142
AVOption
AVOption.
Definition: opt.h:246
AV_PIX_FMT_YUV422P14LE
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:245
AV_PIX_FMT_YUV420P10LE
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:155
ABOVE_BELOW_2_RL
Definition: vf_stereo3d.c:61
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:204
AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
anaglyph
static void anaglyph(uint8_t *dst, uint8_t *lsrc, uint8_t *rsrc, ptrdiff_t dst_linesize, ptrdiff_t l_linesize, ptrdiff_t r_linesize, int width, int height, const int *ana_matrix_r, const int *ana_matrix_g, const int *ana_matrix_b)
Definition: vf_stereo3d.c:338
imgutils.h
misc image utilities
interleave_cols_to_any
static void interleave_cols_to_any(Stereo3DContext *s, int *out_off, int p, AVFrame *in, AVFrame *out, int d)
Definition: vf_stereo3d.c:627
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2403
SIDE_BY_SIDE_LR
Definition: vf_stereo3d.c:54
Stereo3DDSPContext::anaglyph
void(* anaglyph)(uint8_t *dst, uint8_t *lsrc, uint8_t *rsrc, ptrdiff_t dst_linesize, ptrdiff_t l_linesize, ptrdiff_t r_linesize, int width, int height, const int *ana_matrix_r, const int *ana_matrix_g, const int *ana_matrix_b)
Definition: stereo3d.h:28
avfilter.h
Main libavfilter public API header.
AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:64
StereoComponent::format
int format
StereoCode.
Definition: vf_stereo3d.c:73
desc
const char * desc
Definition: nvenc.c:65
AV_OPT_TYPE_INT
Definition: opt.h:223
AV_PIX_FMT_YUV444P9BE
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:158
AV_PIX_FMT_YUV444P12BE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:246
Stereo3DContext::in_off_right
int in_off_right[4]
Definition: vf_stereo3d.c:152
AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:164
ANAGLYPH_YB_GRAY
Definition: vf_stereo3d.c:44
AVRational::num
int num
Numerator.
Definition: rational.h:59
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:203
b
const char * b
Definition: vf_curves.c:113
AV_RB24
#define AV_RB24
Definition: intreadwrite.h:64
AV_PIX_FMT_YUVA444P10LE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:185
AV_PIX_FMT_GBRP12LE
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:251
AV_PIX_FMT_YUV420P9BE
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:152
ANAGLYPH_RC_COLOR
Definition: vf_stereo3d.c:38
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(stereo3d)
AV_PIX_FMT_0BGR
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
Definition: pixfmt.h:235
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:99
ANAGLYPH_GM_COLOR
Definition: vf_stereo3d.c:42
src
#define src
Definition: vp8dsp.c:254
AV_PIX_FMT_GBRP12BE
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:250
AV_PIX_FMT_YUV420P16LE
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:127
AVPixFmtDescriptor::log2_chroma_w
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
ana_convert
static uint8_t ana_convert(const int *coeff, const uint8_t *left, const uint8_t *right)
Definition: vf_stereo3d.c:307
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
ANAGLYPH_RC_DUBOIS
Definition: vf_stereo3d.c:39
ff_vf_stereo3d
AVFilter ff_vf_stereo3d
Definition: vf_stereo3d.c:1108
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:35
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
AV_PIX_FMT_YUVA420P9LE
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian ...
Definition: pixfmt.h:175
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
ThreadData::iright
AVFrame * iright
Definition: vf_stereo3d.c:599
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
AV_PIX_FMT_YUVA420P16BE
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:186
AV_OPT_TYPE_CONST
Definition: opt.h:232
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:97
Stereo3DContext::out
StereoComponent out
Definition: vf_stereo3d.c:142
uint8_t
uint8_t
Definition: audio_convert.c:194
av_cold
#define av_cold
Definition: attributes.h:82
AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:234
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:99
end
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
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:201
AV_WB48
#define AV_WB48(p, darg)
Definition: intreadwrite.h:481
AV_PIX_FMT_YUV444P12LE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:247
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:311
CHECKERBOARD_RL
Definition: vf_stereo3d.c:65
AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:90
AV_PIX_FMT_YUVA420P16LE
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:187
anaglyph_ic
static void anaglyph_ic(uint8_t *dst, uint8_t *lsrc, uint8_t *rsrc, ptrdiff_t dst_linesize, ptrdiff_t l_linesize, ptrdiff_t r_linesize, int width, int height, const int *ana_matrix_r, const int *ana_matrix_g, const int *ana_matrix_b)
Definition: vf_stereo3d.c:318
ThreadData::ileft
AVFrame * ileft
Definition: vf_stereo3d.c:599
stereo3d_outputs
static const AVFilterPad stereo3d_outputs[]
Definition: vf_stereo3d.c:1099
AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:170
AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:96
flags
static int flags
Definition: log.c:55
AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
AV_PIX_FMT_YUVA444P16BE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:190
INTERLEAVE_COLS_RL
Definition: vf_stereo3d.c:67
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
AV_PIX_FMT_YUV420P9LE
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:153
AV_PIX_FMT_GBRP9BE
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:166
AV_PIX_FMT_YUV444P10LE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:161
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_stereo3d.c:1083
AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:172
AVFrame::width
int width
Definition: frame.h:276
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
ff_set_common_formats
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
td
#define td
Definition: regdef.h:70
AVPixFmtDescriptor::log2_chroma_h
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
ARCH_X86
#define ARCH_X86
Definition: config.h:38
AV_PIX_FMT_YUV444P16BE
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:132
AVERROR
#define AVERROR(e)
Definition: error.h:43
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:91
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:353
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
ALTERNATING_RL
Definition: vf_stereo3d.c:63
AV_PIX_FMT_YUVA444P9BE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition: pixfmt.h:178
arg
const char * arg
Definition: jacosubdec.c:66
AV_PIX_FMT_YUV422P10LE
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:157
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
AV_PIX_FMT_YUV422P14BE
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:244
AV_PIX_FMT_YUV422P16BE
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:130
ANAGLYPH_GM_GRAY
Definition: vf_stereo3d.c:40
Stereo3DContext::prev
AVFrame * prev
Definition: vf_stereo3d.c:150
AV_PIX_FMT_YUVA444P9LE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:179
FLAGS
#define FLAGS
Definition: vf_stereo3d.c:158
AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:88
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:145
AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:89
AV_PIX_FMT_YUVA420P10BE
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:180
AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
ALTERNATING_LR
Definition: vf_stereo3d.c:62
OFFSET
#define OFFSET(x)
Definition: vf_stereo3d.c:157
STEREO_CODE_COUNT
Definition: vf_stereo3d.c:69
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
FFMIN
#define FFMIN(a, b)
Definition: common.h:96
AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
HDMI
Definition: vf_stereo3d.c:68
ABOVE_BELOW_RL
Definition: vf_stereo3d.c:59
SIDE_BY_SIDE_2_LR
Definition: vf_stereo3d.c:56
stereo3d_inputs
static const AVFilterPad stereo3d_inputs[]
Definition: vf_stereo3d.c:1090
SIDE_BY_SIDE_RL
Definition: vf_stereo3d.c:55
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_WB24
#define AV_WB24(p, d)
Definition: intreadwrite.h:450
AV_PIX_FMT_YUVA444P10BE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:184
ANAGLYPH_YB_DUBOIS
Definition: vf_stereo3d.c:47
AV_PIX_FMT_YUVA422P9BE
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:176
filter_slice
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_stereo3d.c:603
AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:65
AV_PIX_FMT_YUV420P12LE
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:239
AV_PIX_FMT_YUV420P10BE
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:154
ANAGLYPH_RC_HALF
Definition: vf_stereo3d.c:37
ABOVE_BELOW_LR
Definition: vf_stereo3d.c:58
inputs
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
AV_PIX_FMT_YUV422P9LE
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:163
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:144
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:538
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
ff_fill_rgba_map
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition: drawutils.c:35
other_pix_fmts
static enum AVPixelFormat other_pix_fmts[]
Definition: vf_stereo3d.c:220
ff_stereo3d_init_x86
void ff_stereo3d_init_x86(Stereo3DDSPContext *dsp)
Definition: vf_stereo3d_init.c:30
Stereo3DContext::aspect
AVRational aspect
Definition: vf_stereo3d.c:153
stereo3d_options
static const AVOption stereo3d_options[]
Definition: vf_stereo3d.c:160
AV_PIX_FMT_YUV420P16BE
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:128
MONO_L
Definition: vf_stereo3d.c:50
INTERLEAVE_ROWS_LR
Definition: vf_stereo3d.c:52
drawutils.h
misc drawing utilities
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:249
AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:173
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
AV_RN16
#define AV_RN16(p)
Definition: intreadwrite.h:360
AV_PIX_FMT_GBRP10BE
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:168
AV_PIX_FMT_YUVA422P16BE
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:188
AVFrame::sample_aspect_ratio
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:306
anaglyph_pix_fmts
static enum AVPixelFormat anaglyph_pix_fmts[]
Definition: vf_stereo3d.c:215
AV_PIX_FMT_GBRP14LE
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:253
in
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=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;} 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_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);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_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Definition: audio_convert.c:194
ANAGLYPH_GM_HALF
Definition: vf_stereo3d.c:41
AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
AV_PIX_FMT_YUVA422P16LE
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:189
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
AVFilter
Filter definition.
Definition: avfilter.h:144
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:89
AV_PIX_FMT_YUVA444P16LE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:191
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
AV_PIX_FMT_YUV420P14BE
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:240
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_stereo3d.c:358
Stereo3DContext::ana_matrix
const int * ana_matrix[3]
Definition: vf_stereo3d.c:144
ANAGLYPH_YB_COLOR
Definition: vf_stereo3d.c:46
AV_PIX_FMT_BGR0
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:236
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:148
AV_PIX_FMT_GBRP14BE
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:252
AV_PIX_FMT_YUVA420P9BE
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
Definition: pixfmt.h:174
AV_RN32
#define AV_RN32(p)
Definition: intreadwrite.h:364
parseutils.h
misc parsing utilities
AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_stereo3d.c:274
AV_PIX_FMT_YUVA422P10LE
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:183
AVFilterContext::internal
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:232
AV_PIX_FMT_YUV444P9LE
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:159
AV_PIX_FMT_YUV444P16LE
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:131
AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
AV_PIX_FMT_YUV422P12LE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:243
CHECKERBOARD_LR
Definition: vf_stereo3d.c:64
ANAGLYPH_RC_GRAY
Definition: vf_stereo3d.c:36
ANAGLYPH_GM_DUBOIS
Definition: vf_stereo3d.c:43
AV_WN32
#define AV_WN32(p, v)
Definition: intreadwrite.h:376
AV_PIX_FMT_GBRP9LE
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:167
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:98
AV_PIX_FMT_YUV422P16LE
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:129
AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
AVRational::den
int den
Denominator.
Definition: rational.h:60
AVFilterInternal::execute
avfilter_execute_func * execute
Definition: internal.h:155
AV_PIX_FMT_YUVA420P10LE
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:181
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
Definition: vf_stereo3d.c:664
ana_coeff
static const int ana_coeff[][3][6]
Definition: vf_stereo3d.c:81
ABOVE_BELOW_2_LR
Definition: vf_stereo3d.c:60
AV_PIX_FMT_YUV444P14LE
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:249
SIDE_BY_SIDE_2_RL
Definition: vf_stereo3d.c:57
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
AV_RN64
#define AV_RN64(p)
Definition: intreadwrite.h:368
coeff
static const double coeff[2][5]
Definition: vf_owdenoise.c:72
AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:254
ANAGLYPH_RB_GRAY
Definition: vf_stereo3d.c:48
INTERLEAVE_ROWS_RL
Definition: vf_stereo3d.c:53
AVFilterContext
An instance of a filter.
Definition: avfilter.h:338
AV_PIX_FMT_YUVA422P10BE
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:182
ANAGLYPH_RG_GRAY
Definition: vf_stereo3d.c:49
Stereo3DContext::in_off_left
int in_off_left[4]
Definition: vf_stereo3d.c:152
AVFrame::height
int height
Definition: frame.h:276
out
FILE * out
Definition: movenc.c:54
AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:95
start
void INT64 start
Definition: avisynth_c.h:690
AV_WN16
#define AV_WN16(p, v)
Definition: intreadwrite.h:372
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_GBRP16LE
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:171
INTERLEAVE_COLS_LR
Definition: vf_stereo3d.c:66
FFSWAP
#define FFSWAP(type, a, b)
Definition: common.h:99
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:338
AV_PIX_FMT_YUVA422P9LE
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
Definition: pixfmt.h:177
internal.h
internal API functions
ANAGLYPH_YB_HALF
Definition: vf_stereo3d.c:45
Stereo3DContext::dsp
Stereo3DDSPContext dsp
Definition: vf_stereo3d.c:154
AV_PIX_FMT_0RGB
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
Definition: pixfmt.h:233
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
MONO_R
Definition: vf_stereo3d.c:51
StereoCode
StereoCode
Definition: vf_stereo3d.c:35
AV_PIX_FMT_YUV420P12BE
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:238
AV_PIX_FMT_YUV444P10BE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:160
AV_PIX_FMT_YUV422P12BE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:242
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:652
AV_PIX_FMT_GBRP10LE
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:169
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:202
tb
#define tb
Definition: regdef.h:68
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
AV_WN64
#define AV_WN64(p, v)
Definition: intreadwrite.h:380
AV_PIX_FMT_YUV422P10BE
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:156
Generated on Tue May 22 2018 07:06:51 for FFmpeg by   doxygen 1.8.13