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  pix_formats = ff_make_format_list(s->format ? gray_pix_fmts : pix_fmts);
119  if ((ret = ff_formats_ref(pix_formats, &ctx->inputs[0]->outcfg.formats)) < 0 ||
120  (ret = ff_formats_ref(pix_formats, &ctx->outputs[0]->incfg.formats)) < 0)
121  return ret;
122 
123  map_formats = ff_make_format_list(map_fmts);
124  if ((ret = ff_formats_ref(map_formats, &ctx->inputs[1]->outcfg.formats)) < 0)
125  return ret;
126  return ff_formats_ref(map_formats, &ctx->inputs[2]->outcfg.formats);
127 }
128 
129 /**
130  * remap_planar algorithm expects planes of same size
131  * pixels are copied from source to target using :
132  * Target_frame[y][x] = Source_frame[ ymap[y][x] ][ [xmap[y][x] ];
133  */
134 #define DEFINE_REMAP_PLANAR_FUNC(name, bits, div) \
135 static int remap_planar##bits##_##name##_slice(AVFilterContext *ctx, void *arg, \
136  int jobnr, int nb_jobs) \
137 { \
138  RemapContext *s = ctx->priv; \
139  const ThreadData *td = arg; \
140  const AVFrame *in = td->in; \
141  const AVFrame *xin = td->xin; \
142  const AVFrame *yin = td->yin; \
143  const AVFrame *out = td->out; \
144  const int slice_start = (out->height * jobnr ) / nb_jobs; \
145  const int slice_end = (out->height * (jobnr+1)) / nb_jobs; \
146  const int xlinesize = xin->linesize[0] / 2; \
147  const int ylinesize = yin->linesize[0] / 2; \
148  int x , y, plane; \
149  \
150  for (plane = 0; plane < td->nb_planes ; plane++) { \
151  const int dlinesize = out->linesize[plane] / div; \
152  const uint##bits##_t *src = (const uint##bits##_t *)in->data[plane]; \
153  uint##bits##_t *dst = (uint##bits##_t *)out->data[plane] + slice_start * dlinesize; \
154  const int slinesize = in->linesize[plane] / div; \
155  const uint16_t *xmap = (const uint16_t *)xin->data[0] + slice_start * xlinesize; \
156  const uint16_t *ymap = (const uint16_t *)yin->data[0] + slice_start * ylinesize; \
157  const int color = s->fill_color[plane]; \
158  \
159  for (y = slice_start; y < slice_end; y++) { \
160  for (x = 0; x < out->width; x++) { \
161  if (ymap[x] < in->height && xmap[x] < in->width) { \
162  dst[x] = src[ymap[x] * slinesize + xmap[x]]; \
163  } else { \
164  dst[x] = color; \
165  } \
166  } \
167  dst += dlinesize; \
168  xmap += xlinesize; \
169  ymap += ylinesize; \
170  } \
171  } \
172  \
173  return 0; \
174 }
175 
176 DEFINE_REMAP_PLANAR_FUNC(nearest, 8, 1)
177 DEFINE_REMAP_PLANAR_FUNC(nearest, 16, 2)
178 
179 /**
180  * remap_packed algorithm expects pixels with both padded bits (step) and
181  * number of components correctly set.
182  * pixels are copied from source to target using :
183  * Target_frame[y][x] = Source_frame[ ymap[y][x] ][ [xmap[y][x] ];
184  */
185 #define DEFINE_REMAP_PACKED_FUNC(name, bits, div) \
186 static int remap_packed##bits##_##name##_slice(AVFilterContext *ctx, void *arg, \
187  int jobnr, int nb_jobs) \
188 { \
189  RemapContext *s = ctx->priv; \
190  const ThreadData *td = arg; \
191  const AVFrame *in = td->in; \
192  const AVFrame *xin = td->xin; \
193  const AVFrame *yin = td->yin; \
194  const AVFrame *out = td->out; \
195  const int slice_start = (out->height * jobnr ) / nb_jobs; \
196  const int slice_end = (out->height * (jobnr+1)) / nb_jobs; \
197  const int dlinesize = out->linesize[0] / div; \
198  const int slinesize = in->linesize[0] / div; \
199  const int xlinesize = xin->linesize[0] / 2; \
200  const int ylinesize = yin->linesize[0] / 2; \
201  const uint##bits##_t *src = (const uint##bits##_t *)in->data[0]; \
202  uint##bits##_t *dst = (uint##bits##_t *)out->data[0] + slice_start * dlinesize; \
203  const uint16_t *xmap = (const uint16_t *)xin->data[0] + slice_start * xlinesize; \
204  const uint16_t *ymap = (const uint16_t *)yin->data[0] + slice_start * ylinesize; \
205  const int step = td->step / div; \
206  int c, x, y; \
207  \
208  for (y = slice_start; y < slice_end; y++) { \
209  for (x = 0; x < out->width; x++) { \
210  for (c = 0; c < td->nb_components; c++) { \
211  if (ymap[x] < in->height && xmap[x] < in->width) { \
212  dst[x * step + c] = src[ymap[x] * slinesize + xmap[x] * step + c]; \
213  } else { \
214  dst[x * step + c] = s->fill_color[c]; \
215  } \
216  } \
217  } \
218  dst += dlinesize; \
219  xmap += xlinesize; \
220  ymap += ylinesize; \
221  } \
222  \
223  return 0; \
224 }
225 
226 DEFINE_REMAP_PACKED_FUNC(nearest, 8, 1)
227 DEFINE_REMAP_PACKED_FUNC(nearest, 16, 2)
228 
230 {
231  AVFilterContext *ctx = inlink->dst;
232  RemapContext *s = ctx->priv;
233  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
234  int depth = desc->comp[0].depth;
235  int is_rgb = !!(desc->flags & AV_PIX_FMT_FLAG_RGB);
236  int factor = 1 << (depth - 8);
237  uint8_t rgba_map[4];
238 
239  ff_fill_rgba_map(rgba_map, inlink->format);
240  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
241  s->nb_components = desc->nb_components;
242 
243  if (is_rgb) {
244  s->fill_color[rgba_map[0]] = s->fill_rgba[0] * factor;
245  s->fill_color[rgba_map[1]] = s->fill_rgba[1] * factor;
246  s->fill_color[rgba_map[2]] = s->fill_rgba[2] * factor;
247  s->fill_color[rgba_map[3]] = s->fill_rgba[3] * factor;
248  } else {
249  s->fill_color[0] = RGB_TO_Y_BT709(s->fill_rgba[0], s->fill_rgba[1], s->fill_rgba[2]) * factor;
250  s->fill_color[1] = RGB_TO_U_BT709(s->fill_rgba[0], s->fill_rgba[1], s->fill_rgba[2], 0) * factor;
251  s->fill_color[2] = RGB_TO_V_BT709(s->fill_rgba[0], s->fill_rgba[1], s->fill_rgba[2], 0) * factor;
252  s->fill_color[3] = s->fill_rgba[3] * factor;
253  }
254 
255  if (depth == 8) {
256  if (s->nb_planes > 1 || s->nb_components == 1) {
257  s->remap_slice = remap_planar8_nearest_slice;
258  } else {
259  s->remap_slice = remap_packed8_nearest_slice;
260  }
261  } else {
262  if (s->nb_planes > 1 || s->nb_components == 1) {
263  s->remap_slice = remap_planar16_nearest_slice;
264  } else {
265  s->remap_slice = remap_packed16_nearest_slice;
266  }
267  }
268 
269  s->step = av_get_padded_bits_per_pixel(desc) >> 3;
270  return 0;
271 }
272 
274 {
275  AVFilterContext *ctx = fs->parent;
276  RemapContext *s = fs->opaque;
277  AVFilterLink *outlink = ctx->outputs[0];
278  AVFrame *out, *in, *xpic, *ypic;
279  int ret;
280 
281  if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 0)) < 0 ||
282  (ret = ff_framesync_get_frame(&s->fs, 1, &xpic, 0)) < 0 ||
283  (ret = ff_framesync_get_frame(&s->fs, 2, &ypic, 0)) < 0)
284  return ret;
285 
286  if (ctx->is_disabled) {
287  out = av_frame_clone(in);
288  if (!out)
289  return AVERROR(ENOMEM);
290  } else {
291  ThreadData td;
292 
293  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
294  if (!out)
295  return AVERROR(ENOMEM);
296  av_frame_copy_props(out, in);
297 
298  td.in = in;
299  td.xin = xpic;
300  td.yin = ypic;
301  td.out = out;
302  td.nb_planes = s->nb_planes;
304  td.step = s->step;
305  ctx->internal->execute(ctx, s->remap_slice, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
306  }
307  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
308 
309  return ff_filter_frame(outlink, out);
310 }
311 
312 static int config_output(AVFilterLink *outlink)
313 {
314  AVFilterContext *ctx = outlink->src;
315  RemapContext *s = ctx->priv;
316  AVFilterLink *srclink = ctx->inputs[0];
317  AVFilterLink *xlink = ctx->inputs[1];
318  AVFilterLink *ylink = ctx->inputs[2];
319  FFFrameSyncIn *in;
320  int ret;
321 
322  if (xlink->w != ylink->w || xlink->h != ylink->h) {
323  av_log(ctx, AV_LOG_ERROR, "Second input link %s parameters "
324  "(size %dx%d) do not match the corresponding "
325  "third input link %s parameters (%dx%d)\n",
326  ctx->input_pads[1].name, xlink->w, xlink->h,
327  ctx->input_pads[2].name, ylink->w, ylink->h);
328  return AVERROR(EINVAL);
329  }
330 
331  outlink->w = xlink->w;
332  outlink->h = xlink->h;
333  outlink->sample_aspect_ratio = srclink->sample_aspect_ratio;
334  outlink->frame_rate = srclink->frame_rate;
335 
336  ret = ff_framesync_init(&s->fs, ctx, 3);
337  if (ret < 0)
338  return ret;
339 
340  in = s->fs.in;
341  in[0].time_base = srclink->time_base;
342  in[1].time_base = xlink->time_base;
343  in[2].time_base = ylink->time_base;
344  in[0].sync = 2;
345  in[0].before = EXT_STOP;
346  in[0].after = EXT_STOP;
347  in[1].sync = 1;
348  in[1].before = EXT_NULL;
349  in[1].after = EXT_INFINITY;
350  in[2].sync = 1;
351  in[2].before = EXT_NULL;
352  in[2].after = EXT_INFINITY;
353  s->fs.opaque = s;
355 
356  ret = ff_framesync_configure(&s->fs);
357  outlink->time_base = s->fs.time_base;
358 
359  return ret;
360 }
361 
363 {
364  RemapContext *s = ctx->priv;
365  return ff_framesync_activate(&s->fs);
366 }
367 
369 {
370  RemapContext *s = ctx->priv;
371 
372  ff_framesync_uninit(&s->fs);
373 }
374 
375 static const AVFilterPad remap_inputs[] = {
376  {
377  .name = "source",
378  .type = AVMEDIA_TYPE_VIDEO,
379  .config_props = config_input,
380  },
381  {
382  .name = "xmap",
383  .type = AVMEDIA_TYPE_VIDEO,
384  },
385  {
386  .name = "ymap",
387  .type = AVMEDIA_TYPE_VIDEO,
388  },
389  { NULL }
390 };
391 
392 static const AVFilterPad remap_outputs[] = {
393  {
394  .name = "default",
395  .type = AVMEDIA_TYPE_VIDEO,
396  .config_props = config_output,
397  },
398  { NULL }
399 };
400 
402  .name = "remap",
403  .description = NULL_IF_CONFIG_SMALL("Remap pixels."),
404  .priv_size = sizeof(RemapContext),
405  .uninit = uninit,
407  .activate = activate,
408  .inputs = remap_inputs,
409  .outputs = remap_outputs,
410  .priv_class = &remap_class,
412 };
#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:2573
This structure describes decoded (raw) audio or video data.
Definition: frame.h:308
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:185
AVOption.
Definition: opt.h:248
AVFilter ff_vf_remap
Definition: vf_remap.c:401
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:409
AVFILTER_DEFINE_CLASS(remap)
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:419
const char * desc
Definition: libsvtav1.c:79
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:2613
Main libavfilter public API header.
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
#define AV_PIX_FMT_RGBA64
Definition: pixfmt.h:389
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:415
#define AV_PIX_FMT_BGRA64
Definition: pixfmt.h:394
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:379
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:124
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:388
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:287
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:380
#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:126
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:381
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:349
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:1091
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:229
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:401
#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:414
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:362
static int query_formats(AVFilterContext *ctx)
Definition: vf_remap.c:85
#define AV_PIX_FMT_BGR48
Definition: pixfmt.h:390
AVFrame * xin
Definition: vf_remap.c:79
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:412
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:312
#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:348
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
#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:290
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:261
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:153
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
void * priv
private data for use by the filter
Definition: avfilter.h:356
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:2538
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
AVFilterFormats * formats
List of supported formats (pixel or sample).
Definition: avfilter.h:445
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:443
const char * arg
Definition: jacosubdec.c:66
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:420
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:385
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:341
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
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 AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:421
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:418
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:800
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:383
#define FFMIN(a, b)
Definition: common.h:96
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:440
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:467
int nb_planes
Definition: vf_remap.c:54
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_remap.c:368
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:273
#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:438
void * opaque
Opaque pointer, not used by the API.
Definition: framesync.h:177
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:398
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:417
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:553
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:134
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:84
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:382
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:145
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:149
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:353
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:300
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:416
#define flags(name, subs,...)
Definition: cbs_av1.c:560
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:381
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:406
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:392
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:435
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:136
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:65
An instance of a filter.
Definition: avfilter.h:341
FILE * out
Definition: movenc.c:54
static const AVFilterPad remap_inputs[]
Definition: vf_remap.c:375
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:253
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:671