FFmpeg
vf_framepack.c
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1 /*
2  * Copyright (c) 2013 Vittorio Giovara
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * Generate a frame packed video, by combining two views in a single surface.
24  */
25 
26 #include <string.h>
27 
28 #include "libavutil/common.h"
29 #include "libavutil/imgutils.h"
30 #include "libavutil/opt.h"
31 #include "libavutil/pixdesc.h"
32 #include "libavutil/rational.h"
33 #include "libavutil/stereo3d.h"
34 
35 #include "avfilter.h"
36 #include "filters.h"
37 #include "internal.h"
38 #include "video.h"
39 
40 #define LEFT 0
41 #define RIGHT 1
42 
43 typedef struct FramepackContext {
44  const AVClass *class;
45 
46  int depth;
47  const AVPixFmtDescriptor *pix_desc; ///< agreed pixel format
48 
49  enum AVStereo3DType format; ///< frame pack type output
50 
51  AVFrame *input_views[2]; ///< input frames
53 
54 static const enum AVPixelFormat formats_supported[] = {
79 };
80 
82 {
83  FramepackContext *s = ctx->priv;
84 
85  // clean any leftover frame
86  av_frame_free(&s->input_views[LEFT]);
87  av_frame_free(&s->input_views[RIGHT]);
88 }
89 
90 static int config_output(AVFilterLink *outlink)
91 {
92  AVFilterContext *ctx = outlink->src;
93  FramepackContext *s = outlink->src->priv;
94 
95  int width = ctx->inputs[LEFT]->w;
96  int height = ctx->inputs[LEFT]->h;
97  AVRational time_base = ctx->inputs[LEFT]->time_base;
98  AVRational frame_rate = ctx->inputs[LEFT]->frame_rate;
99 
100  // check size and fps match on the other input
101  if (width != ctx->inputs[RIGHT]->w ||
102  height != ctx->inputs[RIGHT]->h) {
104  "Left and right sizes differ (%dx%d vs %dx%d).\n",
105  width, height,
106  ctx->inputs[RIGHT]->w, ctx->inputs[RIGHT]->h);
107  return AVERROR_INVALIDDATA;
108  } else if (av_cmp_q(time_base, ctx->inputs[RIGHT]->time_base) != 0) {
110  "Left and right time bases differ (%d/%d vs %d/%d).\n",
111  time_base.num, time_base.den,
112  ctx->inputs[RIGHT]->time_base.num,
113  ctx->inputs[RIGHT]->time_base.den);
114  return AVERROR_INVALIDDATA;
115  } else if (av_cmp_q(frame_rate, ctx->inputs[RIGHT]->frame_rate) != 0) {
117  "Left and right framerates differ (%d/%d vs %d/%d).\n",
118  frame_rate.num, frame_rate.den,
119  ctx->inputs[RIGHT]->frame_rate.num,
120  ctx->inputs[RIGHT]->frame_rate.den);
121  return AVERROR_INVALIDDATA;
122  }
123 
124  s->pix_desc = av_pix_fmt_desc_get(outlink->format);
125  if (!s->pix_desc)
126  return AVERROR_BUG;
127  s->depth = s->pix_desc->comp[0].depth;
128 
129  // modify output properties as needed
130  switch (s->format) {
132  time_base.den *= 2;
133  frame_rate.num *= 2;
134  break;
135  case AV_STEREO3D_COLUMNS:
137  width *= 2;
138  break;
139  case AV_STEREO3D_LINES:
141  height *= 2;
142  break;
143  default:
144  av_log(ctx, AV_LOG_ERROR, "Unknown packing mode.\n");
145  return AVERROR_INVALIDDATA;
146  }
147 
148  outlink->w = width;
149  outlink->h = height;
150  outlink->time_base = time_base;
151  outlink->frame_rate = frame_rate;
152 
153  return 0;
154 }
155 
156 static void horizontal_frame_pack(AVFilterLink *outlink,
157  AVFrame *out,
158  int interleaved)
159 {
160  AVFilterContext *ctx = outlink->src;
161  FramepackContext *s = ctx->priv;
162  int i, plane;
163 
164  if (interleaved && s->depth <= 8) {
165  const uint8_t *leftp = s->input_views[LEFT]->data[0];
166  const uint8_t *rightp = s->input_views[RIGHT]->data[0];
167  uint8_t *dstp = out->data[0];
168  int length = out->width / 2;
169  int lines = out->height;
170 
171  for (plane = 0; plane < s->pix_desc->nb_components; plane++) {
172  if (plane == 1 || plane == 2) {
173  length = AV_CEIL_RSHIFT(out->width / 2, s->pix_desc->log2_chroma_w);
174  lines = AV_CEIL_RSHIFT(out->height, s->pix_desc->log2_chroma_h);
175  }
176  for (i = 0; i < lines; i++) {
177  int j;
178  leftp = s->input_views[LEFT]->data[plane] +
179  s->input_views[LEFT]->linesize[plane] * i;
180  rightp = s->input_views[RIGHT]->data[plane] +
181  s->input_views[RIGHT]->linesize[plane] * i;
182  dstp = out->data[plane] + out->linesize[plane] * i;
183  for (j = 0; j < length; j++) {
184  // interpolate chroma as necessary
185  if ((s->pix_desc->log2_chroma_w ||
186  s->pix_desc->log2_chroma_h) &&
187  (plane == 1 || plane == 2)) {
188  *dstp++ = (*leftp + *rightp) / 2;
189  *dstp++ = (*leftp + *rightp) / 2;
190  } else {
191  *dstp++ = *leftp;
192  *dstp++ = *rightp;
193  }
194  leftp += 1;
195  rightp += 1;
196  }
197  }
198  }
199  } else if (interleaved && s->depth > 8) {
200  const uint16_t *leftp = (const uint16_t *)s->input_views[LEFT]->data[0];
201  const uint16_t *rightp = (const uint16_t *)s->input_views[RIGHT]->data[0];
202  uint16_t *dstp = (uint16_t *)out->data[0];
203  int length = out->width / 2;
204  int lines = out->height;
205 
206  for (plane = 0; plane < s->pix_desc->nb_components; plane++) {
207  if (plane == 1 || plane == 2) {
208  length = AV_CEIL_RSHIFT(out->width / 2, s->pix_desc->log2_chroma_w);
209  lines = AV_CEIL_RSHIFT(out->height, s->pix_desc->log2_chroma_h);
210  }
211  for (i = 0; i < lines; i++) {
212  int j;
213  leftp = (const uint16_t *)s->input_views[LEFT]->data[plane] +
214  s->input_views[LEFT]->linesize[plane] * i / 2;
215  rightp = (const uint16_t *)s->input_views[RIGHT]->data[plane] +
216  s->input_views[RIGHT]->linesize[plane] * i / 2;
217  dstp = (uint16_t *)out->data[plane] + out->linesize[plane] * i / 2;
218  for (j = 0; j < length; j++) {
219  // interpolate chroma as necessary
220  if ((s->pix_desc->log2_chroma_w ||
221  s->pix_desc->log2_chroma_h) &&
222  (plane == 1 || plane == 2)) {
223  *dstp++ = (*leftp + *rightp) / 2;
224  *dstp++ = (*leftp + *rightp) / 2;
225  } else {
226  *dstp++ = *leftp;
227  *dstp++ = *rightp;
228  }
229  leftp += 1;
230  rightp += 1;
231  }
232  }
233  }
234  } else {
235  for (i = 0; i < 2; i++) {
236  const AVFrame *const input_view = s->input_views[i];
237  const int psize = 1 + (s->depth > 8);
238  uint8_t *dst[4];
239  int sub_w = psize * input_view->width >> s->pix_desc->log2_chroma_w;
240 
241  dst[0] = out->data[0] + i * input_view->width * psize;
242  dst[1] = out->data[1] + i * sub_w;
243  dst[2] = out->data[2] + i * sub_w;
244 
245  av_image_copy2(dst, out->linesize,
246  input_view->data, input_view->linesize,
247  input_view->format,
248  input_view->width,
249  input_view->height);
250  }
251  }
252 }
253 
254 static void vertical_frame_pack(AVFilterLink *outlink,
255  AVFrame *out,
256  int interleaved)
257 {
258  AVFilterContext *ctx = outlink->src;
259  FramepackContext *s = ctx->priv;
260  int i;
261 
262  for (i = 0; i < 2; i++) {
263  const AVFrame *const input_view = s->input_views[i];
264  uint8_t *dst[4];
265  int linesizes[4];
266  int sub_h = input_view->height >> s->pix_desc->log2_chroma_h;
267 
268  dst[0] = out->data[0] + i * out->linesize[0] *
269  (interleaved + input_view->height * (1 - interleaved));
270  dst[1] = out->data[1] + i * out->linesize[1] *
271  (interleaved + sub_h * (1 - interleaved));
272  dst[2] = out->data[2] + i * out->linesize[2] *
273  (interleaved + sub_h * (1 - interleaved));
274 
275  linesizes[0] = out->linesize[0] +
276  interleaved * out->linesize[0];
277  linesizes[1] = out->linesize[1] +
278  interleaved * out->linesize[1];
279  linesizes[2] = out->linesize[2] +
280  interleaved * out->linesize[2];
281 
282  av_image_copy2(dst, linesizes,
283  input_view->data, input_view->linesize,
284  input_view->format,
285  input_view->width,
286  input_view->height);
287  }
288 }
289 
291  AVFrame *dst)
292 {
293  AVFilterContext *ctx = outlink->src;
294  FramepackContext *s = ctx->priv;
295  switch (s->format) {
297  horizontal_frame_pack(outlink, dst, 0);
298  break;
299  case AV_STEREO3D_COLUMNS:
300  horizontal_frame_pack(outlink, dst, 1);
301  break;
303  vertical_frame_pack(outlink, dst, 0);
304  break;
305  case AV_STEREO3D_LINES:
306  vertical_frame_pack(outlink, dst, 1);
307  break;
308  }
309 }
310 
312 {
313  FramepackContext *s = ctx->priv;
314  AVFilterLink *outlink = ctx->outputs[0];
315  AVStereo3D *stereo;
316  int ret, i;
317 
318  if (!(s->input_views[0] && s->input_views[1]))
319  return 0;
320  if (s->format == AV_STEREO3D_FRAMESEQUENCE) {
321  int64_t pts = s->input_views[0]->pts;
322 
323  for (i = 0; i < 2; i++) {
324  // set correct timestamps
325  if (pts != AV_NOPTS_VALUE) {
326  s->input_views[i]->pts = i == 0 ? pts * 2 : pts * 2 + av_rescale_q(1, av_inv_q(outlink->frame_rate), outlink->time_base);
327  s->input_views[i]->duration = av_rescale_q(1, av_inv_q(outlink->frame_rate), outlink->time_base);
328  }
329 
330  // set stereo3d side data
331  stereo = av_stereo3d_create_side_data(s->input_views[i]);
332  if (!stereo)
333  return AVERROR(ENOMEM);
334  stereo->type = s->format;
335  stereo->view = i == LEFT ? AV_STEREO3D_VIEW_LEFT
337 
338  // filter the frame and immediately relinquish its pointer
339  ret = ff_filter_frame(outlink, s->input_views[i]);
340  s->input_views[i] = NULL;
341  if (ret < 0)
342  return ret;
343  }
344  return ret;
345  } else {
346  AVFrame *dst = ff_get_video_buffer(outlink, outlink->w, outlink->h);
347  if (!dst)
348  return AVERROR(ENOMEM);
349 
350  spatial_frame_pack(outlink, dst);
351 
352  // get any property from the original frame
353  ret = av_frame_copy_props(dst, s->input_views[LEFT]);
354  if (ret < 0) {
355  av_frame_free(&dst);
356  return ret;
357  }
358 
359  for (i = 0; i < 2; i++)
360  av_frame_free(&s->input_views[i]);
361 
362  // set stereo3d side data
363  stereo = av_stereo3d_create_side_data(dst);
364  if (!stereo) {
365  av_frame_free(&dst);
366  return AVERROR(ENOMEM);
367  }
368  stereo->type = s->format;
369 
370  return ff_filter_frame(outlink, dst);
371  }
372 }
373 
375 {
376  AVFilterLink *outlink = ctx->outputs[0];
377  FramepackContext *s = ctx->priv;
378  int ret;
379 
381 
382  if (!s->input_views[0]) {
383  ret = ff_inlink_consume_frame(ctx->inputs[0], &s->input_views[0]);
384  if (ret < 0)
385  return ret;
386  }
387 
388  if (!s->input_views[1]) {
389  ret = ff_inlink_consume_frame(ctx->inputs[1], &s->input_views[1]);
390  if (ret < 0)
391  return ret;
392  }
393 
394  if (s->input_views[0] && s->input_views[1])
395  return try_push_frame(ctx);
396 
397  FF_FILTER_FORWARD_STATUS(ctx->inputs[0], outlink);
398  FF_FILTER_FORWARD_STATUS(ctx->inputs[1], outlink);
399 
400  if (ff_outlink_frame_wanted(ctx->outputs[0]) &&
401  !s->input_views[0]) {
402  ff_inlink_request_frame(ctx->inputs[0]);
403  return 0;
404  }
405 
406  if (ff_outlink_frame_wanted(ctx->outputs[0]) &&
407  !s->input_views[1]) {
408  ff_inlink_request_frame(ctx->inputs[1]);
409  return 0;
410  }
411 
412  return FFERROR_NOT_READY;
413 }
414 
415 #define OFFSET(x) offsetof(FramepackContext, x)
416 #define VF AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
417 static const AVOption framepack_options[] = {
418  { "format", "Frame pack output format", OFFSET(format), AV_OPT_TYPE_INT,
419  { .i64 = AV_STEREO3D_SIDEBYSIDE }, 0, INT_MAX, .flags = VF, .unit = "format" },
420  { "sbs", "Views are packed next to each other", 0, AV_OPT_TYPE_CONST,
421  { .i64 = AV_STEREO3D_SIDEBYSIDE }, INT_MIN, INT_MAX, .flags = VF, .unit = "format" },
422  { "tab", "Views are packed on top of each other", 0, AV_OPT_TYPE_CONST,
423  { .i64 = AV_STEREO3D_TOPBOTTOM }, INT_MIN, INT_MAX, .flags = VF, .unit = "format" },
424  { "frameseq", "Views are one after the other", 0, AV_OPT_TYPE_CONST,
425  { .i64 = AV_STEREO3D_FRAMESEQUENCE }, INT_MIN, INT_MAX, .flags = VF, .unit = "format" },
426  { "lines", "Views are interleaved by lines", 0, AV_OPT_TYPE_CONST,
427  { .i64 = AV_STEREO3D_LINES }, INT_MIN, INT_MAX, .flags = VF, .unit = "format" },
428  { "columns", "Views are interleaved by columns", 0, AV_OPT_TYPE_CONST,
429  { .i64 = AV_STEREO3D_COLUMNS }, INT_MIN, INT_MAX, .flags = VF, .unit = "format" },
430  { NULL },
431 };
432 
433 AVFILTER_DEFINE_CLASS(framepack);
434 
435 static const AVFilterPad framepack_inputs[] = {
436  {
437  .name = "left",
438  .type = AVMEDIA_TYPE_VIDEO,
439  },
440  {
441  .name = "right",
442  .type = AVMEDIA_TYPE_VIDEO,
443  },
444 };
445 
446 static const AVFilterPad framepack_outputs[] = {
447  {
448  .name = "packed",
449  .type = AVMEDIA_TYPE_VIDEO,
450  .config_props = config_output,
451  },
452 };
453 
455  .name = "framepack",
456  .description = NULL_IF_CONFIG_SMALL("Generate a frame packed stereoscopic video."),
457  .priv_size = sizeof(FramepackContext),
458  .priv_class = &framepack_class,
462  .activate = activate,
463  .uninit = framepack_uninit,
464 };
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:112
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:522
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:501
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
AV_STEREO3D_VIEW_LEFT
@ AV_STEREO3D_VIEW_LEFT
Frame contains only the left view.
Definition: stereo3d.h:158
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame 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. Frame references ownership and permissions
opt.h
out
FILE * out
Definition: movenc.c:55
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1015
spatial_frame_pack
static av_always_inline void spatial_frame_pack(AVFilterLink *outlink, AVFrame *dst)
Definition: vf_framepack.c:290
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2965
FFERROR_NOT_READY
return FFERROR_NOT_READY
Definition: filter_design.txt:204
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:162
rational.h
int64_t
long long int64_t
Definition: coverity.c:34
framepack_outputs
static const AVFilterPad framepack_outputs[]
Definition: vf_framepack.c:446
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:160
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:514
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:374
pixdesc.h
AVFrame::width
int width
Definition: frame.h:446
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:521
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:516
AVOption
AVOption.
Definition: opt.h:357
RIGHT
#define RIGHT
Definition: vf_framepack.c:41
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:478
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
try_push_frame
static int try_push_frame(AVFilterContext *ctx)
Definition: vf_framepack.c:311
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:517
AV_STEREO3D_VIEW_RIGHT
@ AV_STEREO3D_VIEW_RIGHT
Frame contains only the right view.
Definition: stereo3d.h:163
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:458
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:395
AV_STEREO3D_SIDEBYSIDE
@ AV_STEREO3D_SIDEBYSIDE
Views are next to each other.
Definition: stereo3d.h:64
ff_inlink_consume_frame
int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
Take a frame from the link's FIFO and update the link's stats.
Definition: avfilter.c:1442
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:513
FramepackContext
Definition: vf_framepack.c:43
FF_FILTER_FORWARD_STATUS_BACK_ALL
#define FF_FILTER_FORWARD_STATUS_BACK_ALL(outlink, filter)
Forward the status on an output link to all input links.
Definition: filters.h:212
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:496
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:422
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:494
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:523
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:476
OFFSET
#define OFFSET(x)
Definition: vf_framepack.c:415
pts
static int64_t pts
Definition: transcode_aac.c:644
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:462
FramepackContext::depth
int depth
Definition: vf_framepack.c:46
AVRational::num
int num
Numerator.
Definition: rational.h:59
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:481
AV_PIX_FMT_YUVJ411P
@ 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:283
AV_STEREO3D_FRAMESEQUENCE
@ AV_STEREO3D_FRAMESEQUENCE
Views are alternated temporally.
Definition: stereo3d.h:89
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
vertical_frame_pack
static void vertical_frame_pack(AVFilterLink *outlink, AVFrame *out, int interleaved)
Definition: vf_framepack.c:254
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:490
AV_PIX_FMT_YUVJ422P
@ 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:86
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:498
ff_inlink_request_frame
void ff_inlink_request_frame(AVFilterLink *link)
Mark that a frame is wanted on the link.
Definition: avfilter.c:1568
width
#define width
AV_STEREO3D_LINES
@ AV_STEREO3D_LINES
Views are packed per line, as if interlaced.
Definition: stereo3d.h:126
stereo3d.h
s
#define s(width, name)
Definition: cbs_vp9.c:198
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:499
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:108
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:491
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:60
format
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame 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 format(the sample packing is implied by the sample format) and sample rate. The lists are not just lists
filters.h
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:520
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:475
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:489
ctx
AVFormatContext * ctx
Definition: movenc.c:49
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(framepack)
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:461
av_rescale_q
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:73
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
AV_PIX_FMT_YUVJ444P
@ 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:87
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:459
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:497
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
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:709
FramepackContext::input_views
AVFrame * input_views[2]
input frames
Definition: vf_framepack.c:51
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
horizontal_frame_pack
static void horizontal_frame_pack(AVFilterLink *outlink, AVFrame *out, int interleaved)
Definition: vf_framepack.c:156
AV_PIX_FMT_YUVJ420P
@ 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:85
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:480
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:479
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:493
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:94
ff_vf_framepack
const AVFilter ff_vf_framepack
Definition: vf_framepack.c:454
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:425
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:483
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
FramepackContext::format
enum AVStereo3DType format
frame pack type output
Definition: vf_framepack.c:49
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:485
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:461
activate
static int activate(AVFilterContext *ctx)
Definition: vf_framepack.c:374
LEFT
#define LEFT
Definition: vf_framepack.c:40
height
#define height
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:174
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:518
internal.h
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_framepack.c:90
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:495
AV_STEREO3D_TOPBOTTOM
@ AV_STEREO3D_TOPBOTTOM
Views are on top of each other.
Definition: stereo3d.h:76
common.h
av_always_inline
#define av_always_inline
Definition: attributes.h:49
AV_PIX_FMT_YUVJ440P
@ 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:107
av_inv_q
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
framepack_uninit
static av_cold void framepack_uninit(AVFilterContext *ctx)
Definition: vf_framepack.c:81
VF
#define VF
Definition: vf_framepack.c:416
framepack_options
static const AVOption framepack_options[]
Definition: vf_framepack.c:417
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:477
av_cmp_q
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
Definition: rational.h:89
AVFilter
Filter definition.
Definition: avfilter.h:166
ret
ret
Definition: filter_design.txt:187
AV_STEREO3D_COLUMNS
@ AV_STEREO3D_COLUMNS
Views are packed per column.
Definition: stereo3d.h:138
AVStereo3D::type
enum AVStereo3DType type
How views are packed within the video.
Definition: stereo3d.h:207
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:515
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:482
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:487
AVFrame::height
int height
Definition: frame.h:446
FramepackContext::pix_desc
const AVPixFmtDescriptor * pix_desc
agreed pixel format
Definition: vf_framepack.c:47
av_image_copy2
static void av_image_copy2(uint8_t *const dst_data[4], const int dst_linesizes[4], uint8_t *const src_data[4], const int src_linesizes[4], enum AVPixelFormat pix_fmt, int width, int height)
Wrapper around av_image_copy() to workaround the limitation that the conversion from uint8_t * const ...
Definition: imgutils.h:184
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:519
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:245
avfilter.h
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:78
AVFilterContext
An instance of a filter.
Definition: avfilter.h:407
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:77
av_stereo3d_create_side_data
AVStereo3D * av_stereo3d_create_side_data(AVFrame *frame)
Allocate a complete AVFrameSideData and add it to the frame.
Definition: stereo3d.c:54
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
AVStereo3D::view
enum AVStereo3DView view
Determines which views are packed.
Definition: stereo3d.h:217
FF_FILTER_FORWARD_STATUS
FF_FILTER_FORWARD_STATUS(inlink, outlink)
framepack_inputs
static const AVFilterPad framepack_inputs[]
Definition: vf_framepack.c:435
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:80
imgutils.h
AVERROR_BUG
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:52
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:419
AVStereo3DType
AVStereo3DType
List of possible 3D Types.
Definition: stereo3d.h:48
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:79
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:484
ff_outlink_frame_wanted
the definition of that something depends on the semantic of the filter The callback must examine the status of the filter s links and proceed accordingly The status of output links is stored in the status_in and status_out fields and tested by the ff_outlink_frame_wanted() function. If this function returns true
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:488
AVStereo3D
Stereo 3D type: this structure describes how two videos are packed within a single video surface,...
Definition: stereo3d.h:203
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:460
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:254
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:173
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:486
formats_supported
static enum AVPixelFormat formats_supported[]
Definition: vf_framepack.c:54