FFmpeg
vf_remap.c
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1 /*
2  * Copyright (c) 2016 Floris Sluiter
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  * Pixel remap filter
24  * This filter copies pixel by pixel a source frame to a target frame.
25  * It remaps the pixels to a new x,y destination based on two files ymap/xmap.
26  * Map files are passed as a parameter and are in PGM format (P2 or P5),
27  * where the values are y(rows)/x(cols) coordinates of the source_frame.
28  * The *target* frame dimension is based on mapfile dimensions: specified in the
29  * header of the mapfile and reflected in the number of datavalues.
30  * Dimensions of ymap and xmap must be equal. Datavalues must be positive or zero.
31  * Any datavalue in the ymap or xmap which value is higher
32  * then the *source* frame height or width is silently ignored, leaving a
33  * blank/chromakey pixel. This can safely be used as a feature to create overlays.
34  *
35  * Algorithm digest:
36  * Target_frame[y][x] = Source_frame[ ymap[y][x] ][ [xmap[y][x] ];
37  */
38 
39 #include "libavutil/colorspace.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/opt.h"
43 #include "avfilter.h"
44 #include "drawutils.h"
45 #include "formats.h"
46 #include "framesync.h"
47 #include "internal.h"
48 #include "video.h"
49 
50 typedef struct RemapContext {
51  const AVClass *class;
52  int format;
53 
54  int nb_planes;
56  int step;
58  int fill_color[4];
59 
61 
62  int (*remap_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
63 } RemapContext;
64 
65 #define OFFSET(x) offsetof(RemapContext, x)
66 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
67 
68 static const AVOption remap_options[] = {
69  { "format", "set output format", OFFSET(format), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "format" },
70  { "color", "", 0, AV_OPT_TYPE_CONST, {.i64=0}, .flags = FLAGS, .unit = "format" },
71  { "gray", "", 0, AV_OPT_TYPE_CONST, {.i64=1}, .flags = FLAGS, .unit = "format" },
72  { "fill", "set the color of the unmapped pixels", OFFSET(fill_rgba), AV_OPT_TYPE_COLOR, {.str="black"}, .flags = FLAGS },
73  { NULL }
74 };
75 
77 
78 typedef struct ThreadData {
79  AVFrame *in, *xin, *yin, *out;
80  int nb_planes;
82  int step;
83 } ThreadData;
84 
86 {
87  RemapContext *s = ctx->priv;
88  static const enum AVPixelFormat pix_fmts[] = {
104  };
105  static const enum AVPixelFormat gray_pix_fmts[] = {
109  AV_PIX_FMT_NONE
110  };
111  static const enum AVPixelFormat map_fmts[] = {
113  AV_PIX_FMT_NONE
114  };
115  AVFilterFormats *pix_formats = NULL, *map_formats = NULL;
116  int ret;
117 
118  if (!(pix_formats = ff_make_format_list(s->format ? gray_pix_fmts : pix_fmts)) ||
119  !(map_formats = ff_make_format_list(map_fmts))) {
120  ret = AVERROR(ENOMEM);
121  goto fail;
122  }
123  if ((ret = ff_formats_ref(pix_formats, &ctx->inputs[0]->out_formats)) < 0 ||
124  (ret = ff_formats_ref(map_formats, &ctx->inputs[1]->out_formats)) < 0 ||
125  (ret = ff_formats_ref(map_formats, &ctx->inputs[2]->out_formats)) < 0 ||
126  (ret = ff_formats_ref(pix_formats, &ctx->outputs[0]->in_formats)) < 0)
127  goto fail;
128  return 0;
129 fail:
130  if (pix_formats)
131  av_freep(&pix_formats->formats);
132  av_freep(&pix_formats);
133  if (map_formats)
134  av_freep(&map_formats->formats);
135  av_freep(&map_formats);
136  return ret;
137 }
138 
139 /**
140  * remap_planar algorithm expects planes of same size
141  * pixels are copied from source to target using :
142  * Target_frame[y][x] = Source_frame[ ymap[y][x] ][ [xmap[y][x] ];
143  */
144 #define DEFINE_REMAP_PLANAR_FUNC(name, bits, div) \
145 static int remap_planar##bits##_##name##_slice(AVFilterContext *ctx, void *arg, \
146  int jobnr, int nb_jobs) \
147 { \
148  RemapContext *s = ctx->priv; \
149  const ThreadData *td = arg; \
150  const AVFrame *in = td->in; \
151  const AVFrame *xin = td->xin; \
152  const AVFrame *yin = td->yin; \
153  const AVFrame *out = td->out; \
154  const int slice_start = (out->height * jobnr ) / nb_jobs; \
155  const int slice_end = (out->height * (jobnr+1)) / nb_jobs; \
156  const int xlinesize = xin->linesize[0] / 2; \
157  const int ylinesize = yin->linesize[0] / 2; \
158  int x , y, plane; \
159  \
160  for (plane = 0; plane < td->nb_planes ; plane++) { \
161  const int dlinesize = out->linesize[plane] / div; \
162  const uint##bits##_t *src = (const uint##bits##_t *)in->data[plane]; \
163  uint##bits##_t *dst = (uint##bits##_t *)out->data[plane] + slice_start * dlinesize; \
164  const int slinesize = in->linesize[plane] / div; \
165  const uint16_t *xmap = (const uint16_t *)xin->data[0] + slice_start * xlinesize; \
166  const uint16_t *ymap = (const uint16_t *)yin->data[0] + slice_start * ylinesize; \
167  const int color = s->fill_color[plane]; \
168  \
169  for (y = slice_start; y < slice_end; y++) { \
170  for (x = 0; x < out->width; x++) { \
171  if (ymap[x] < in->height && xmap[x] < in->width) { \
172  dst[x] = src[ymap[x] * slinesize + xmap[x]]; \
173  } else { \
174  dst[x] = color; \
175  } \
176  } \
177  dst += dlinesize; \
178  xmap += xlinesize; \
179  ymap += ylinesize; \
180  } \
181  } \
182  \
183  return 0; \
184 }
185 
186 DEFINE_REMAP_PLANAR_FUNC(nearest, 8, 1)
187 DEFINE_REMAP_PLANAR_FUNC(nearest, 16, 2)
188 
189 /**
190  * remap_packed algorithm expects pixels with both padded bits (step) and
191  * number of components correctly set.
192  * pixels are copied from source to target using :
193  * Target_frame[y][x] = Source_frame[ ymap[y][x] ][ [xmap[y][x] ];
194  */
195 #define DEFINE_REMAP_PACKED_FUNC(name, bits, div) \
196 static int remap_packed##bits##_##name##_slice(AVFilterContext *ctx, void *arg, \
197  int jobnr, int nb_jobs) \
198 { \
199  RemapContext *s = ctx->priv; \
200  const ThreadData *td = arg; \
201  const AVFrame *in = td->in; \
202  const AVFrame *xin = td->xin; \
203  const AVFrame *yin = td->yin; \
204  const AVFrame *out = td->out; \
205  const int slice_start = (out->height * jobnr ) / nb_jobs; \
206  const int slice_end = (out->height * (jobnr+1)) / nb_jobs; \
207  const int dlinesize = out->linesize[0] / div; \
208  const int slinesize = in->linesize[0] / div; \
209  const int xlinesize = xin->linesize[0] / 2; \
210  const int ylinesize = yin->linesize[0] / 2; \
211  const uint##bits##_t *src = (const uint##bits##_t *)in->data[0]; \
212  uint##bits##_t *dst = (uint##bits##_t *)out->data[0] + slice_start * dlinesize; \
213  const uint16_t *xmap = (const uint16_t *)xin->data[0] + slice_start * xlinesize; \
214  const uint16_t *ymap = (const uint16_t *)yin->data[0] + slice_start * ylinesize; \
215  const int step = td->step / div; \
216  int c, x, y; \
217  \
218  for (y = slice_start; y < slice_end; y++) { \
219  for (x = 0; x < out->width; x++) { \
220  for (c = 0; c < td->nb_components; c++) { \
221  if (ymap[x] < in->height && xmap[x] < in->width) { \
222  dst[x * step + c] = src[ymap[x] * slinesize + xmap[x] * step + c]; \
223  } else { \
224  dst[x * step + c] = s->fill_color[c]; \
225  } \
226  } \
227  } \
228  dst += dlinesize; \
229  xmap += xlinesize; \
230  ymap += ylinesize; \
231  } \
232  \
233  return 0; \
234 }
235 
236 DEFINE_REMAP_PACKED_FUNC(nearest, 8, 1)
237 DEFINE_REMAP_PACKED_FUNC(nearest, 16, 2)
238 
240 {
241  AVFilterContext *ctx = inlink->dst;
242  RemapContext *s = ctx->priv;
243  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
244  int depth = desc->comp[0].depth;
245  int is_rgb = !!(desc->flags & AV_PIX_FMT_FLAG_RGB);
246  int factor = 1 << (depth - 8);
247  uint8_t rgba_map[4];
248 
249  ff_fill_rgba_map(rgba_map, inlink->format);
250  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
251  s->nb_components = desc->nb_components;
252 
253  if (is_rgb) {
254  s->fill_color[rgba_map[0]] = s->fill_rgba[0] * factor;
255  s->fill_color[rgba_map[1]] = s->fill_rgba[1] * factor;
256  s->fill_color[rgba_map[2]] = s->fill_rgba[2] * factor;
257  s->fill_color[rgba_map[3]] = s->fill_rgba[3] * factor;
258  } else {
259  s->fill_color[0] = RGB_TO_Y_BT709(s->fill_rgba[0], s->fill_rgba[1], s->fill_rgba[2]) * factor;
260  s->fill_color[1] = RGB_TO_U_BT709(s->fill_rgba[0], s->fill_rgba[1], s->fill_rgba[2], 0) * factor;
261  s->fill_color[2] = RGB_TO_V_BT709(s->fill_rgba[0], s->fill_rgba[1], s->fill_rgba[2], 0) * factor;
262  s->fill_color[3] = s->fill_rgba[3] * factor;
263  }
264 
265  if (depth == 8) {
266  if (s->nb_planes > 1 || s->nb_components == 1) {
267  s->remap_slice = remap_planar8_nearest_slice;
268  } else {
269  s->remap_slice = remap_packed8_nearest_slice;
270  }
271  } else {
272  if (s->nb_planes > 1 || s->nb_components == 1) {
273  s->remap_slice = remap_planar16_nearest_slice;
274  } else {
275  s->remap_slice = remap_packed16_nearest_slice;
276  }
277  }
278 
279  s->step = av_get_padded_bits_per_pixel(desc) >> 3;
280  return 0;
281 }
282 
284 {
285  AVFilterContext *ctx = fs->parent;
286  RemapContext *s = fs->opaque;
287  AVFilterLink *outlink = ctx->outputs[0];
288  AVFrame *out, *in, *xpic, *ypic;
289  int ret;
290 
291  if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 0)) < 0 ||
292  (ret = ff_framesync_get_frame(&s->fs, 1, &xpic, 0)) < 0 ||
293  (ret = ff_framesync_get_frame(&s->fs, 2, &ypic, 0)) < 0)
294  return ret;
295 
296  if (ctx->is_disabled) {
297  out = av_frame_clone(in);
298  if (!out)
299  return AVERROR(ENOMEM);
300  } else {
301  ThreadData td;
302 
303  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
304  if (!out)
305  return AVERROR(ENOMEM);
306  av_frame_copy_props(out, in);
307 
308  td.in = in;
309  td.xin = xpic;
310  td.yin = ypic;
311  td.out = out;
312  td.nb_planes = s->nb_planes;
314  td.step = s->step;
315  ctx->internal->execute(ctx, s->remap_slice, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
316  }
317  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
318 
319  return ff_filter_frame(outlink, out);
320 }
321 
322 static int config_output(AVFilterLink *outlink)
323 {
324  AVFilterContext *ctx = outlink->src;
325  RemapContext *s = ctx->priv;
326  AVFilterLink *srclink = ctx->inputs[0];
327  AVFilterLink *xlink = ctx->inputs[1];
328  AVFilterLink *ylink = ctx->inputs[2];
329  FFFrameSyncIn *in;
330  int ret;
331 
332  if (xlink->w != ylink->w || xlink->h != ylink->h) {
333  av_log(ctx, AV_LOG_ERROR, "Second input link %s parameters "
334  "(size %dx%d) do not match the corresponding "
335  "third input link %s parameters (%dx%d)\n",
336  ctx->input_pads[1].name, xlink->w, xlink->h,
337  ctx->input_pads[2].name, ylink->w, ylink->h);
338  return AVERROR(EINVAL);
339  }
340 
341  outlink->w = xlink->w;
342  outlink->h = xlink->h;
343  outlink->sample_aspect_ratio = srclink->sample_aspect_ratio;
344  outlink->frame_rate = srclink->frame_rate;
345 
346  ret = ff_framesync_init(&s->fs, ctx, 3);
347  if (ret < 0)
348  return ret;
349 
350  in = s->fs.in;
351  in[0].time_base = srclink->time_base;
352  in[1].time_base = xlink->time_base;
353  in[2].time_base = ylink->time_base;
354  in[0].sync = 2;
355  in[0].before = EXT_STOP;
356  in[0].after = EXT_STOP;
357  in[1].sync = 1;
358  in[1].before = EXT_NULL;
359  in[1].after = EXT_INFINITY;
360  in[2].sync = 1;
361  in[2].before = EXT_NULL;
362  in[2].after = EXT_INFINITY;
363  s->fs.opaque = s;
365 
366  ret = ff_framesync_configure(&s->fs);
367  outlink->time_base = s->fs.time_base;
368 
369  return ret;
370 }
371 
373 {
374  RemapContext *s = ctx->priv;
375  return ff_framesync_activate(&s->fs);
376 }
377 
379 {
380  RemapContext *s = ctx->priv;
381 
382  ff_framesync_uninit(&s->fs);
383 }
384 
385 static const AVFilterPad remap_inputs[] = {
386  {
387  .name = "source",
388  .type = AVMEDIA_TYPE_VIDEO,
389  .config_props = config_input,
390  },
391  {
392  .name = "xmap",
393  .type = AVMEDIA_TYPE_VIDEO,
394  },
395  {
396  .name = "ymap",
397  .type = AVMEDIA_TYPE_VIDEO,
398  },
399  { NULL }
400 };
401 
402 static const AVFilterPad remap_outputs[] = {
403  {
404  .name = "default",
405  .type = AVMEDIA_TYPE_VIDEO,
406  .config_props = config_output,
407  },
408  { NULL }
409 };
410 
412  .name = "remap",
413  .description = NULL_IF_CONFIG_SMALL("Remap pixels."),
414  .priv_size = sizeof(RemapContext),
415  .uninit = uninit,
417  .activate = activate,
418  .inputs = remap_inputs,
419  .outputs = remap_outputs,
420  .priv_class = &remap_class,
422 };
#define NULL
Definition: coverity.c:32
AVFrame * out
Definition: af_adeclick.c:494
#define RGB_TO_Y_BT709(r, g, b)
Definition: colorspace.h:126
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2549
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
int nb_components
Definition: vf_remap.c:55
#define DEFINE_REMAP_PACKED_FUNC(name, bits, div)
remap_packed algorithm expects pixels with both padded bits (step) and number of components correctly...
Definition: vf_remap.c:195
AVOption.
Definition: opt.h:246
AVFilter ff_vf_remap
Definition: vf_remap.c:411
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:407
AVFILTER_DEFINE_CLASS(remap)
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:417
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2589
Main libavfilter public API header.
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
const char * desc
Definition: nvenc.c:79
#define AV_PIX_FMT_RGBA64
Definition: pixfmt.h:387
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:413
#define AV_PIX_FMT_BGRA64
Definition: pixfmt.h:392
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:377
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:117
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
int is_disabled
the enabled state from the last expression evaluation
Definition: avfilter.h:385
int64_t pts
Timestamp of the current event.
Definition: framesync.h:167
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
Definition: framesync.h:86
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:378
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125
int nb_planes
Definition: vf_remap.c:80
int fill_color[4]
Definition: vf_remap.c:58
const char * name
Pad name.
Definition: internal.h:60
AVFilterContext * parent
Parent filter context.
Definition: framesync.h:152
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:379
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
int(* remap_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_remap.c:62
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1075
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:88
AVOptions.
static int config_input(AVFilterLink *inlink)
Definition: vf_remap.c:239
AVFrame * yin
Definition: vf_remap.c:79
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:393
#define RGB_TO_V_BT709(r1, g1, b1, shift)
Definition: colorspace.h:134
FFFrameSyncIn * in
Pointer to array of inputs.
Definition: framesync.h:203
#define FLAGS
Definition: vf_remap.c:66
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:412
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:94
#define OFFSET(x)
Definition: vf_remap.c:65
static int activate(AVFilterContext *ctx)
Definition: vf_remap.c:372
static int query_formats(AVFilterContext *ctx)
Definition: vf_remap.c:85
#define AV_PIX_FMT_BGR48
Definition: pixfmt.h:388
AVFrame * xin
Definition: vf_remap.c:79
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:410
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
Definition: framesync.h:91
Input stream structure.
Definition: framesync.h:81
static int config_output(AVFilterLink *outlink)
Definition: vf_remap.c:322
#define av_log(a,...)
#define RGB_TO_U_BT709(r1, g1, b1, shift)
Definition: colorspace.h:130
A filter pad used for either input or output.
Definition: internal.h:54
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
AVFilterPad * input_pads
array of input pads
Definition: avfilter.h:345
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define td
Definition: regdef.h:70
Various defines for YUV<->RGB conversion.
int step
Definition: vf_remap.c:82
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:283
Frame sync structure.
Definition: framesync.h:146
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:148
static enum AVPixelFormat gray_pix_fmts[]
Definition: jpeg2000dec.c:253
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
void * priv
private data for use by the filter
Definition: avfilter.h:353
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:2514
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:441
const char * arg
Definition: jacosubdec.c:66
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:418
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:383
AVRational time_base
Time base for the incoming frames.
Definition: framesync.h:96
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter&#39;s input and try to produce output.
Definition: framesync.c:334
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:400
int(* on_event)(struct FFFrameSync *fs)
Callback called when a frame event is ready.
Definition: framesync.h:172
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:92
#define fail()
Definition: checkasm.h:123
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:419
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
FFFrameSync fs
Definition: vf_remap.c:60
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:416
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:784
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:381
#define FFMIN(a, b)
Definition: common.h:96
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:438
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:470
int nb_planes
Definition: vf_remap.c:54
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_remap.c:378
AVFormatContext * ctx
Definition: movenc.c:48
AVRational time_base
Time base for the output events.
Definition: framesync.h:162
static int process_frame(FFFrameSync *fs)
Definition: vf_remap.c:283
#define s(width, name)
Definition: cbs_vp9.c:257
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:436
void * opaque
Opaque pointer, not used by the API.
Definition: framesync.h:177
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:396
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:415
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:541
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition: drawutils.c:35
#define DEFINE_REMAP_PLANAR_FUNC(name, bits, div)
remap_planar algorithm expects planes of same size pixels are copied from source to target using : Ta...
Definition: vf_remap.c:144
static const AVOption remap_options[]
Definition: vf_remap.c:68
Extend the frame to infinity.
Definition: framesync.h:75
misc drawing utilities
static const int remap[16]
Definition: msvideo1enc.c:63
Used for passing data between threads.
Definition: dsddec.c:67
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:77
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:380
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
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)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events...
Definition: framesync.h:139
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
uint8_t fill_rgba[4]
Definition: vf_remap.c:57
Ignore this stream and continue processing the other ones.
Definition: framesync.h:70
static const int factor[16]
Definition: vf_pp7.c:75
const char * name
Filter name.
Definition: avfilter.h:148
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:414
#define flags(name, subs,...)
Definition: cbs_av1.c:564
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:404
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
int
static const AVFilterPad remap_outputs[]
Definition: vf_remap.c:402
Y , 8bpp.
Definition: pixfmt.h:74
int format
Definition: vf_remap.c:52
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:433
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
avfilter_execute_func * execute
Definition: internal.h:144
int nb_components
Definition: vf_remap.c:81
Completely stop all streams with this one.
Definition: framesync.h:65
A list of supported formats for one end of a filter link.
Definition: formats.h:64
An instance of a filter.
Definition: avfilter.h:338
FILE * out
Definition: movenc.c:54
#define av_freep(p)
static const AVFilterPad remap_inputs[]
Definition: vf_remap.c:385
AVFrame * in
Definition: af_afftdn.c:1083
internal API functions
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
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
Definition: framesync.c:246
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:659
int * formats
list of media formats
Definition: formats.h:66