FFmpeg
vf_extractplanes.c
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1 /*
2  * Copyright (c) 2013 Paul B Mahol
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 #include "config_components.h"
22 
23 #include "libavutil/avstring.h"
24 #include "libavutil/imgutils.h"
25 #include "libavutil/opt.h"
26 #include "libavutil/pixdesc.h"
27 
28 #include "avfilter.h"
29 #include "drawutils.h"
30 #include "filters.h"
31 #include "formats.h"
32 #include "video.h"
33 
34 #define PLANE_R 0x01
35 #define PLANE_G 0x02
36 #define PLANE_B 0x04
37 #define PLANE_A 0x08
38 #define PLANE_Y 0x10
39 #define PLANE_U 0x20
40 #define PLANE_V 0x40
41 
42 typedef struct ExtractPlanesContext {
43  const AVClass *class;
45  int map[4];
46  int linesize[4];
47  int is_packed;
48  int depth;
49  int step;
51 
52 #define OFFSET(x) offsetof(ExtractPlanesContext, x)
53 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
54 static const AVOption extractplanes_options[] = {
55  { "planes", "set planes", OFFSET(requested_planes), AV_OPT_TYPE_FLAGS, {.i64=1}, 1, 0xff, FLAGS, .unit = "flags"},
56  { "y", "set luma plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_Y}, 0, 0, FLAGS, .unit = "flags"},
57  { "u", "set u plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_U}, 0, 0, FLAGS, .unit = "flags"},
58  { "v", "set v plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_V}, 0, 0, FLAGS, .unit = "flags"},
59  { "r", "set red plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_R}, 0, 0, FLAGS, .unit = "flags"},
60  { "g", "set green plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_G}, 0, 0, FLAGS, .unit = "flags"},
61  { "b", "set blue plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_B}, 0, 0, FLAGS, .unit = "flags"},
62  { "a", "set alpha plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_A}, 0, 0, FLAGS, .unit = "flags"},
63  { NULL }
64 };
65 
66 AVFILTER_DEFINE_CLASS(extractplanes);
67 
68 #define EIGHTBIT_FORMATS \
69  AV_PIX_FMT_YUV410P, \
70  AV_PIX_FMT_YUV411P, \
71  AV_PIX_FMT_YUV440P, \
72  AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, \
73  AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P, \
74  AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, \
75  AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P, \
76  AV_PIX_FMT_YUVJ411P, \
77  AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P, \
78  AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY8A, \
79  AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, \
80  AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, \
81  AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, \
82  AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0, \
83  AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR, \
84  AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP
85 
86 #define HIGHDEPTH_FORMATS(suf) \
87  AV_PIX_FMT_YA16##suf, \
88  AV_PIX_FMT_GRAY9##suf, \
89  AV_PIX_FMT_GRAY10##suf, \
90  AV_PIX_FMT_GRAY12##suf, \
91  AV_PIX_FMT_GRAY14##suf, \
92  AV_PIX_FMT_GRAY16##suf, \
93  AV_PIX_FMT_YUV420P16##suf, AV_PIX_FMT_YUVA420P16##suf, \
94  AV_PIX_FMT_YUV422P16##suf, AV_PIX_FMT_YUVA422P16##suf, \
95  AV_PIX_FMT_YUV444P16##suf, AV_PIX_FMT_YUVA444P16##suf, \
96  AV_PIX_FMT_RGB48##suf, AV_PIX_FMT_BGR48##suf, \
97  AV_PIX_FMT_RGBA64##suf, AV_PIX_FMT_BGRA64##suf, \
98  AV_PIX_FMT_GBRP16##suf, AV_PIX_FMT_GBRAP16##suf, \
99  AV_PIX_FMT_YUV420P10##suf, \
100  AV_PIX_FMT_YUV422P10##suf, \
101  AV_PIX_FMT_YUV444P10##suf, \
102  AV_PIX_FMT_YUV440P10##suf, \
103  AV_PIX_FMT_YUVA420P10##suf, \
104  AV_PIX_FMT_YUVA422P10##suf, \
105  AV_PIX_FMT_YUVA444P10##suf, \
106  AV_PIX_FMT_YUV420P12##suf, \
107  AV_PIX_FMT_YUV422P12##suf, \
108  AV_PIX_FMT_YUV444P12##suf, \
109  AV_PIX_FMT_YUV440P12##suf, \
110  AV_PIX_FMT_YUVA422P12##suf, \
111  AV_PIX_FMT_YUVA444P12##suf, \
112  AV_PIX_FMT_GBRP10##suf, AV_PIX_FMT_GBRAP10##suf, \
113  AV_PIX_FMT_GBRP12##suf, AV_PIX_FMT_GBRAP12##suf, \
114  AV_PIX_FMT_YUV420P9##suf, \
115  AV_PIX_FMT_YUV422P9##suf, \
116  AV_PIX_FMT_YUV444P9##suf, \
117  AV_PIX_FMT_YUVA420P9##suf, \
118  AV_PIX_FMT_YUVA422P9##suf, \
119  AV_PIX_FMT_YUVA444P9##suf, \
120  AV_PIX_FMT_GBRP9##suf, \
121  AV_PIX_FMT_GBRP14##suf, AV_PIX_FMT_GBRAP14##suf, \
122  AV_PIX_FMT_YUV420P14##suf, \
123  AV_PIX_FMT_YUV422P14##suf, \
124  AV_PIX_FMT_YUV444P14##suf
125 
126 #define FLOAT_FORMATS(suf) \
127  AV_PIX_FMT_GRAYF32##suf, \
128  AV_PIX_FMT_RGBF32##suf, AV_PIX_FMT_RGBAF32##suf, \
129  AV_PIX_FMT_GBRPF32##suf, AV_PIX_FMT_GBRAPF32##suf \
130 
132 {
133  static const enum AVPixelFormat in_pixfmts_le[] = {
135  HIGHDEPTH_FORMATS(LE),
136  FLOAT_FORMATS(LE),
138  };
139  static const enum AVPixelFormat in_pixfmts_be[] = {
141  HIGHDEPTH_FORMATS(BE),
142  FLOAT_FORMATS(BE),
144  };
145  static const enum AVPixelFormat out8_pixfmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
146  static const enum AVPixelFormat out9le_pixfmts[] = { AV_PIX_FMT_GRAY9LE, AV_PIX_FMT_NONE };
147  static const enum AVPixelFormat out9be_pixfmts[] = { AV_PIX_FMT_GRAY9BE, AV_PIX_FMT_NONE };
148  static const enum AVPixelFormat out10le_pixfmts[] = { AV_PIX_FMT_GRAY10LE, AV_PIX_FMT_NONE };
149  static const enum AVPixelFormat out10be_pixfmts[] = { AV_PIX_FMT_GRAY10BE, AV_PIX_FMT_NONE };
150  static const enum AVPixelFormat out12le_pixfmts[] = { AV_PIX_FMT_GRAY12LE, AV_PIX_FMT_NONE };
151  static const enum AVPixelFormat out12be_pixfmts[] = { AV_PIX_FMT_GRAY12BE, AV_PIX_FMT_NONE };
152  static const enum AVPixelFormat out14le_pixfmts[] = { AV_PIX_FMT_GRAY14LE, AV_PIX_FMT_NONE };
153  static const enum AVPixelFormat out14be_pixfmts[] = { AV_PIX_FMT_GRAY14BE, AV_PIX_FMT_NONE };
154  static const enum AVPixelFormat out16le_pixfmts[] = { AV_PIX_FMT_GRAY16LE, AV_PIX_FMT_NONE };
155  static const enum AVPixelFormat out16be_pixfmts[] = { AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_NONE };
156  static const enum AVPixelFormat out32le_pixfmts[] = { AV_PIX_FMT_GRAYF32LE, AV_PIX_FMT_NONE };
157  static const enum AVPixelFormat out32be_pixfmts[] = { AV_PIX_FMT_GRAYF32BE, AV_PIX_FMT_NONE };
158  const enum AVPixelFormat *out_pixfmts, *in_pixfmts;
159  const AVPixFmtDescriptor *desc;
160  AVFilterFormats *avff;
161  int i, ret, depth = 0, be = 0;
162 
163  if (!ctx->inputs[0]->incfg.formats ||
164  !ctx->inputs[0]->incfg.formats->nb_formats) {
165  return AVERROR(EAGAIN);
166  }
167 
168  avff = ctx->inputs[0]->incfg.formats;
169  desc = av_pix_fmt_desc_get(avff->formats[0]);
170  depth = desc->comp[0].depth;
171  be = desc->flags & AV_PIX_FMT_FLAG_BE;
172  if (be) {
173  in_pixfmts = in_pixfmts_be;
174  } else {
175  in_pixfmts = in_pixfmts_le;
176  }
177  if (!ctx->inputs[0]->outcfg.formats)
178  if ((ret = ff_formats_ref(ff_make_format_list(in_pixfmts), &ctx->inputs[0]->outcfg.formats)) < 0)
179  return ret;
180 
181  for (i = 1; i < avff->nb_formats; i++) {
182  desc = av_pix_fmt_desc_get(avff->formats[i]);
183  if (depth != desc->comp[0].depth ||
184  be != (desc->flags & AV_PIX_FMT_FLAG_BE)) {
185  return AVERROR(EAGAIN);
186  }
187  }
188 
189  if (depth == 8)
190  out_pixfmts = out8_pixfmts;
191  else if (!be && depth == 9)
192  out_pixfmts = out9le_pixfmts;
193  else if (be && depth == 9)
194  out_pixfmts = out9be_pixfmts;
195  else if (!be && depth == 10)
196  out_pixfmts = out10le_pixfmts;
197  else if (be && depth == 10)
198  out_pixfmts = out10be_pixfmts;
199  else if (!be && depth == 12)
200  out_pixfmts = out12le_pixfmts;
201  else if (be && depth == 12)
202  out_pixfmts = out12be_pixfmts;
203  else if (!be && depth == 14)
204  out_pixfmts = out14le_pixfmts;
205  else if (be && depth == 14)
206  out_pixfmts = out14be_pixfmts;
207  else if (be && depth == 16)
208  out_pixfmts = out16be_pixfmts;
209  else if (!be && depth == 16)
210  out_pixfmts = out16le_pixfmts;
211  else if (be && depth == 32)
212  out_pixfmts = out32be_pixfmts;
213  else
214  out_pixfmts = out32le_pixfmts;
215 
216  for (i = 0; i < ctx->nb_outputs; i++)
217  if ((ret = ff_formats_ref(ff_make_format_list(out_pixfmts), &ctx->outputs[i]->incfg.formats)) < 0)
218  return ret;
219  return 0;
220 }
221 
223 {
224  AVFilterContext *ctx = inlink->dst;
225  ExtractPlanesContext *s = ctx->priv;
227  int plane_avail, ret, i;
228  uint8_t rgba_map[4];
229 
230  plane_avail = ((desc->flags & AV_PIX_FMT_FLAG_RGB) ? PLANE_R|PLANE_G|PLANE_B :
231  PLANE_Y |
232  ((desc->nb_components > 2) ? PLANE_U|PLANE_V : 0)) |
233  ((desc->flags & AV_PIX_FMT_FLAG_ALPHA) ? PLANE_A : 0);
234  if (s->requested_planes & ~plane_avail) {
235  av_log(ctx, AV_LOG_ERROR, "Requested planes not available.\n");
236  return AVERROR(EINVAL);
237  }
238  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
239  return ret;
240 
241  s->depth = desc->comp[0].depth >> 3;
242  s->step = av_get_padded_bits_per_pixel(desc) >> 3;
243  s->is_packed = !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
244  (desc->nb_components > 1);
245  if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
246  ff_fill_rgba_map(rgba_map, inlink->format);
247  for (i = 0; i < 4; i++)
248  s->map[i] = rgba_map[s->map[i]];
249  }
250 
251  return 0;
252 }
253 
254 static int config_output(AVFilterLink *outlink)
255 {
256  AVFilterContext *ctx = outlink->src;
257  AVFilterLink *inlink = ctx->inputs[0];
258  ExtractPlanesContext *s = ctx->priv;
260  const int output = outlink->srcpad - ctx->output_pads;
261 
262  if (s->map[output] == 1 || s->map[output] == 2) {
263  outlink->h = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
264  outlink->w = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
265  }
266 
267  return 0;
268 }
269 
270 static void extract_from_packed(uint8_t *dst, int dst_linesize,
271  const uint8_t *src, int src_linesize,
272  int width, int height,
273  int depth, int step, int comp)
274 {
275  int x, y;
276 
277  for (y = 0; y < height; y++) {
278  switch (depth) {
279  case 1:
280  for (x = 0; x < width; x++)
281  dst[x] = src[x * step + comp];
282  break;
283  case 2:
284  for (x = 0; x < width; x++) {
285  dst[x * 2 ] = src[x * step + comp * 2 ];
286  dst[x * 2 + 1] = src[x * step + comp * 2 + 1];
287  }
288  break;
289  case 4:
290  for (x = 0; x < width; x++) {
291  dst[x * 4 ] = src[x * step + comp * 4 ];
292  dst[x * 4 + 1] = src[x * step + comp * 4 + 1];
293  dst[x * 4 + 2] = src[x * step + comp * 4 + 2];
294  dst[x * 4 + 3] = src[x * step + comp * 4 + 3];
295  }
296  break;
297  }
298  dst += dst_linesize;
299  src += src_linesize;
300  }
301 }
302 
303 static int extract_plane(AVFilterLink *outlink, AVFrame *frame)
304 {
305  AVFilterContext *ctx = outlink->src;
306  ExtractPlanesContext *s = ctx->priv;
307  const int idx = s->map[FF_OUTLINK_IDX(outlink)];
308  AVFrame *out;
309 
310  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
311  if (!out)
312  return AVERROR(ENOMEM);
314  if (idx == 3 /* alpha */)
315  out->color_range = AVCOL_RANGE_JPEG;
316 
317  if (s->is_packed) {
318  extract_from_packed(out->data[0], out->linesize[0],
319  frame->data[0], frame->linesize[0],
320  outlink->w, outlink->h,
321  s->depth,
322  s->step, idx);
323  } else {
324  av_image_copy_plane(out->data[0], out->linesize[0],
325  frame->data[idx], frame->linesize[idx],
326  s->linesize[idx], outlink->h);
327  }
328 
329  return ff_filter_frame(outlink, out);
330 }
331 
333 {
334  AVFilterLink *inlink = ctx->inputs[0];
335  int status, ret;
336  AVFrame *in;
337  int64_t pts;
338 
339  for (int i = 0; i < ctx->nb_outputs; i++) {
341  }
342 
344  if (ret < 0)
345  return ret;
346  if (ret > 0) {
347  for (int i = 0; i < ctx->nb_outputs; i++) {
348  if (ff_outlink_get_status(ctx->outputs[i]))
349  continue;
350 
351  ret = extract_plane(ctx->outputs[i], in);
352  if (ret < 0)
353  break;
354  }
355 
356  av_frame_free(&in);
357  if (ret < 0)
358  return ret;
359  }
360 
362  for (int i = 0; i < ctx->nb_outputs; i++) {
363  if (ff_outlink_get_status(ctx->outputs[i]))
364  continue;
365  ff_outlink_set_status(ctx->outputs[i], status, pts);
366  }
367  return 0;
368  }
369 
370  for (int i = 0; i < ctx->nb_outputs; i++) {
371  if (ff_outlink_get_status(ctx->outputs[i]))
372  continue;
373 
374  if (ff_outlink_frame_wanted(ctx->outputs[i])) {
376  return 0;
377  }
378  }
379 
380  return FFERROR_NOT_READY;
381 }
382 
384 {
385  ExtractPlanesContext *s = ctx->priv;
386  int planes = (s->requested_planes & 0xf) | (s->requested_planes >> 4);
387  int i, ret;
388 
389  for (i = 0; i < 4; i++) {
390  char *name;
391  AVFilterPad pad = { 0 };
392 
393  if (!(planes & (1 << i)))
394  continue;
395 
396  name = av_asprintf("out%d", ctx->nb_outputs);
397  if (!name)
398  return AVERROR(ENOMEM);
399  s->map[ctx->nb_outputs] = i;
400  pad.name = name;
401  pad.type = AVMEDIA_TYPE_VIDEO;
403 
404  if ((ret = ff_append_outpad_free_name(ctx, &pad)) < 0)
405  return ret;
406  }
407 
408  return 0;
409 }
410 
412  {
413  .name = "default",
414  .type = AVMEDIA_TYPE_VIDEO,
415  .config_props = config_input,
416  },
417 };
418 
420  .name = "extractplanes",
421  .description = NULL_IF_CONFIG_SMALL("Extract planes as grayscale frames."),
422  .priv_size = sizeof(ExtractPlanesContext),
423  .priv_class = &extractplanes_class,
424  .init = init,
425  .activate = activate,
427  .outputs = NULL,
430 };
431 
432 #if CONFIG_ALPHAEXTRACT_FILTER
433 
434 static av_cold int init_alphaextract(AVFilterContext *ctx)
435 {
436  ExtractPlanesContext *s = ctx->priv;
437 
438  s->requested_planes = PLANE_A;
439  s->map[0] = 3;
440 
441  return 0;
442 }
443 
444 static const AVFilterPad alphaextract_outputs[] = {
445  {
446  .name = "default",
447  .type = AVMEDIA_TYPE_VIDEO,
448  .config_props = config_output,
449  },
450 };
451 
453  .name = "alphaextract",
454  .description = NULL_IF_CONFIG_SMALL("Extract an alpha channel as a "
455  "grayscale image component."),
456  .priv_size = sizeof(ExtractPlanesContext),
457  .init = init_alphaextract,
458  .activate = activate,
460  FILTER_OUTPUTS(alphaextract_outputs),
462 };
463 #endif /* CONFIG_ALPHAEXTRACT_FILTER */
ff_vf_extractplanes
const AVFilter ff_vf_extractplanes
Definition: vf_extractplanes.c:419
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:116
be
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it be(in the first position) for now. Options ------- Then comes the options array. This is what will define the user accessible options. For example
AV_PIX_FMT_GRAY10BE
@ AV_PIX_FMT_GRAY10BE
Y , 10bpp, big-endian.
Definition: pixfmt.h:320
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
extractplanes_options
static const AVOption extractplanes_options[]
Definition: vf_extractplanes.c:54
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
FF_OUTLINK_IDX
#define FF_OUTLINK_IDX(link)
Definition: filters.h:214
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:435
out
FILE * out
Definition: movenc.c:55
comp
static void comp(unsigned char *dst, ptrdiff_t dst_stride, unsigned char *src, ptrdiff_t src_stride, int add)
Definition: eamad.c:81
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1061
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3170
FFERROR_NOT_READY
return FFERROR_NOT_READY
Definition: filter_design.txt:204
int64_t
long long int64_t
Definition: coverity.c:34
output
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce output
Definition: filter_design.txt:225
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
av_asprintf
char * av_asprintf(const char *fmt,...)
Definition: avstring.c:115
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:162
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: filters.h:262
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:389
pixdesc.h
step
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
Definition: rate_distortion.txt:58
ExtractPlanesContext::requested_planes
int requested_planes
Definition: vf_extractplanes.c:44
ExtractPlanesContext::linesize
int linesize[4]
Definition: vf_extractplanes.c:46
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:717
FLAGS
#define FLAGS
Definition: vf_extractplanes.c:53
AVOption
AVOption.
Definition: opt.h:429
planes
static const struct @467 planes[]
AVFilterFormats::formats
int * formats
list of media formats
Definition: formats.h:66
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:205
video.h
AV_PIX_FMT_GRAY10LE
@ AV_PIX_FMT_GRAY10LE
Y , 10bpp, little-endian.
Definition: pixfmt.h:321
AV_PIX_FMT_GRAYF32LE
@ AV_PIX_FMT_GRAYF32LE
IEEE-754 single precision Y, 32bpp, little-endian.
Definition: pixfmt.h:364
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:374
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
formats.h
AV_PIX_FMT_GRAY16BE
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition: pixfmt.h:104
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:1490
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:447
PLANE_A
#define PLANE_A
Definition: vf_extractplanes.c:37
ExtractPlanesContext::map
int map[4]
Definition: vf_extractplanes.c:45
ff_vf_alphaextract
const AVFilter ff_vf_alphaextract
AV_PIX_FMT_GRAY9LE
@ AV_PIX_FMT_GRAY9LE
Y , 9bpp, little-endian.
Definition: pixfmt.h:339
PLANE_B
#define PLANE_B
Definition: vf_extractplanes.c:36
pts
static int64_t pts
Definition: transcode_aac.c:644
AVFilterPad
A filter pad used for either input or output.
Definition: filters.h:38
extract_from_packed
static void extract_from_packed(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int width, int height, int depth, int step, int comp)
Definition: vf_extractplanes.c:270
activate
static int activate(AVFilterContext *ctx)
Definition: vf_extractplanes.c:332
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:209
av_cold
#define av_cold
Definition: attributes.h:90
extract_plane
static int extract_plane(AVFilterLink *outlink, AVFrame *frame)
Definition: vf_extractplanes.c:303
PLANE_Y
#define PLANE_Y
Definition: vf_extractplanes.c:38
ff_outlink_set_status
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
Definition: filters.h:424
ff_inlink_request_frame
void ff_inlink_request_frame(AVFilterLink *link)
Mark that a frame is wanted on the link.
Definition: avfilter.c:1593
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
s
#define s(width, name)
Definition: cbs_vp9.c:198
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:60
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:678
filters.h
AV_PIX_FMT_FLAG_ALPHA
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:147
ctx
AVFormatContext * ctx
Definition: movenc.c:49
ExtractPlanesContext
Definition: vf_extractplanes.c:42
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_extractplanes.c:383
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: filters.h:263
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:75
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:725
AVFilterFormats::nb_formats
unsigned nb_formats
number of formats
Definition: formats.h:65
PLANE_G
#define PLANE_G
Definition: vf_extractplanes.c:35
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
ff_inlink_acknowledge_status
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
Definition: avfilter.c:1437
AVFILTER_FLAG_DYNAMIC_OUTPUTS
#define AVFILTER_FLAG_DYNAMIC_OUTPUTS
The number of the filter outputs is not determined just by AVFilter.outputs.
Definition: avfilter.h:147
AVFilterPad::config_props
int(* config_props)(AVFilterLink *link)
Link configuration callback.
Definition: filters.h:118
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
height
#define height
Definition: dsp.h:85
av_get_padded_bits_per_pixel
int av_get_padded_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel for the pixel format described by pixdesc, including any padding ...
Definition: pixdesc.c:3135
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:136
dst
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
Definition: dsp.h:83
AV_PIX_FMT_GRAY12LE
@ AV_PIX_FMT_GRAY12LE
Y , 12bpp, little-endian.
Definition: pixfmt.h:319
ExtractPlanesContext::is_packed
int is_packed
Definition: vf_extractplanes.c:47
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_extractplanes.c:254
OFFSET
#define OFFSET(x)
Definition: vf_extractplanes.c:52
extractplanes_inputs
static const AVFilterPad extractplanes_inputs[]
Definition: vf_extractplanes.c:411
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
AV_PIX_FMT_GRAY9BE
@ AV_PIX_FMT_GRAY9BE
Y , 9bpp, big-endian.
Definition: pixfmt.h:338
FLOAT_FORMATS
#define FLOAT_FORMATS(suf)
Definition: vf_extractplanes.c:126
AV_PIX_FMT_FLAG_BE
#define AV_PIX_FMT_FLAG_BE
Pixel format is big-endian.
Definition: pixdesc.h:116
AVFilterPad::name
const char * name
Pad name.
Definition: filters.h:44
AVFilter
Filter definition.
Definition: avfilter.h:201
AV_PIX_FMT_GRAY12BE
@ AV_PIX_FMT_GRAY12BE
Y , 12bpp, big-endian.
Definition: pixfmt.h:318
ret
ret
Definition: filter_design.txt:187
AVFilterPad::type
enum AVMediaType type
AVFilterPad type.
Definition: filters.h:49
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
AV_PIX_FMT_GRAYF32BE
@ AV_PIX_FMT_GRAYF32BE
IEEE-754 single precision Y, 32bpp, big-endian.
Definition: pixfmt.h:363
status
ov_status_e status
Definition: dnn_backend_openvino.c:100
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
avfilter.h
AV_PIX_FMT_FLAG_PLANAR
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:132
ff_outlink_get_status
int ff_outlink_get_status(AVFilterLink *link)
Get the status on an output link.
Definition: avfilter.c:1618
AVFilterContext
An instance of a filter.
Definition: avfilter.h:457
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_GRAY16LE
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Definition: pixfmt.h:105
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
ExtractPlanesContext::depth
int depth
Definition: vf_extractplanes.c:48
PLANE_U
#define PLANE_U
Definition: vf_extractplanes.c:39
AV_PIX_FMT_GRAY14LE
@ AV_PIX_FMT_GRAY14LE
Y , 14bpp, little-endian.
Definition: pixfmt.h:361
ExtractPlanesContext::step
int step
Definition: vf_extractplanes.c:49
ff_append_outpad_free_name
int ff_append_outpad_free_name(AVFilterContext *f, AVFilterPad *p)
Definition: avfilter.c:143
AV_PIX_FMT_GRAY14BE
@ AV_PIX_FMT_GRAY14BE
Y , 14bpp, big-endian.
Definition: pixfmt.h:360
ff_fill_rgba_map
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition: drawutils.c:79
AV_OPT_TYPE_FLAGS
@ AV_OPT_TYPE_FLAGS
Underlying C type is unsigned int.
Definition: opt.h:255
imgutils.h
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
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
avstring.h
width
#define width
Definition: dsp.h:85
drawutils.h
HIGHDEPTH_FORMATS
#define HIGHDEPTH_FORMATS(suf)
Definition: vf_extractplanes.c:86
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_extractplanes.c:222
PLANE_V
#define PLANE_V
Definition: vf_extractplanes.c:40
PLANE_R
#define PLANE_R
Definition: vf_extractplanes.c:34
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(extractplanes)
EIGHTBIT_FORMATS
#define EIGHTBIT_FORMATS
Definition: vf_extractplanes.c:68
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
Definition: opt.h:299
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: filters.h:236
src
#define src
Definition: vp8dsp.c:248
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_extractplanes.c:131