FFmpeg
vf_atadenoise.c
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1 /*
2  * Copyright (c) 2015 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 /**
22  * @file
23  * Adaptive Temporal Averaging Denoiser,
24  * based on paper "Video Denoising Based on Adaptive Temporal Averaging" by
25  * David Bartovčak and Miroslav Vrankić
26  */
27 
28 #include "libavutil/imgutils.h"
29 #include "libavutil/opt.h"
30 #include "libavutil/pixdesc.h"
31 #include "avfilter.h"
32 
33 #define FF_BUFQUEUE_SIZE 129
34 #include "bufferqueue.h"
35 
36 #include "formats.h"
37 #include "internal.h"
38 #include "video.h"
39 
40 #define SIZE FF_BUFQUEUE_SIZE
41 
42 typedef struct ATADenoiseContext {
43  const AVClass *class;
44 
45  float fthra[4], fthrb[4];
46  int thra[4], thrb[4];
47 
48  int planes;
49  int nb_planes;
50  int planewidth[4];
51  int planeheight[4];
52 
53  struct FFBufQueue q;
54  void *data[4][SIZE];
55  int linesize[4][SIZE];
56  int size, mid;
57  int available;
58 
59  int (*filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
61 
62 #define OFFSET(x) offsetof(ATADenoiseContext, x)
63 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
64 
65 static const AVOption atadenoise_options[] = {
66  { "0a", "set threshold A for 1st plane", OFFSET(fthra[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0, 0.3, FLAGS },
67  { "0b", "set threshold B for 1st plane", OFFSET(fthrb[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.04}, 0, 5.0, FLAGS },
68  { "1a", "set threshold A for 2nd plane", OFFSET(fthra[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0, 0.3, FLAGS },
69  { "1b", "set threshold B for 2nd plane", OFFSET(fthrb[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.04}, 0, 5.0, FLAGS },
70  { "2a", "set threshold A for 3rd plane", OFFSET(fthra[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0, 0.3, FLAGS },
71  { "2b", "set threshold B for 3rd plane", OFFSET(fthrb[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.04}, 0, 5.0, FLAGS },
72  { "s", "set how many frames to use", OFFSET(size), AV_OPT_TYPE_INT, {.i64=9}, 5, SIZE, FLAGS },
73  { "p", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=7}, 0, 15, FLAGS },
74  { NULL }
75 };
76 
77 AVFILTER_DEFINE_CLASS(atadenoise);
78 
80 {
81  static const enum AVPixelFormat pixel_fmts[] = {
104  };
106  if (!formats)
107  return AVERROR(ENOMEM);
108  return ff_set_common_formats(ctx, formats);
109 }
110 
112 {
113  ATADenoiseContext *s = ctx->priv;
114 
115  if (!(s->size & 1)) {
116  av_log(ctx, AV_LOG_WARNING, "size %d is invalid. Must be an odd value, setting it to %d.\n", s->size, s->size|1);
117  s->size |= 1;
118  }
119  s->mid = s->size / 2 + 1;
120 
121  return 0;
122 }
123 
124 typedef struct ThreadData {
125  AVFrame *in, *out;
126 } ThreadData;
127 
128 static int filter_slice8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
129 {
130  ATADenoiseContext *s = ctx->priv;
131  ThreadData *td = arg;
132  AVFrame *in = td->in;
133  AVFrame *out = td->out;
134  const int size = s->size;
135  const int mid = s->mid;
136  int p, x, y, i, j;
137 
138  for (p = 0; p < s->nb_planes; p++) {
139  const int h = s->planeheight[p];
140  const int w = s->planewidth[p];
141  const int slice_start = (h * jobnr) / nb_jobs;
142  const int slice_end = (h * (jobnr+1)) / nb_jobs;
143  const uint8_t *src = in->data[p] + slice_start * in->linesize[p];
144  uint8_t *dst = out->data[p] + slice_start * out->linesize[p];
145  const int thra = s->thra[p];
146  const int thrb = s->thrb[p];
147  const uint8_t **data = (const uint8_t **)s->data[p];
148  const int *linesize = (const int *)s->linesize[p];
149  const uint8_t *srcf[SIZE];
150 
151  if (!((1 << p) & s->planes)) {
152  av_image_copy_plane(dst, out->linesize[p], src, in->linesize[p],
153  w, slice_end - slice_start);
154  continue;
155  }
156 
157  for (i = 0; i < size; i++)
158  srcf[i] = data[i] + slice_start * linesize[i];
159 
160  for (y = slice_start; y < slice_end; y++) {
161  for (x = 0; x < w; x++) {
162  const int srcx = src[x];
163  unsigned lsumdiff = 0, rsumdiff = 0;
164  unsigned ldiff, rdiff;
165  unsigned sum = srcx;
166  int l = 0, r = 0;
167  int srcjx, srcix;
168 
169  for (j = mid - 1, i = mid + 1; j >= 0 && i < size; j--, i++) {
170  srcjx = srcf[j][x];
171 
172  ldiff = FFABS(srcx - srcjx);
173  lsumdiff += ldiff;
174  if (ldiff > thra ||
175  lsumdiff > thrb)
176  break;
177  l++;
178  sum += srcjx;
179 
180  srcix = srcf[i][x];
181 
182  rdiff = FFABS(srcx - srcix);
183  rsumdiff += rdiff;
184  if (rdiff > thra ||
185  rsumdiff > thrb)
186  break;
187  r++;
188  sum += srcix;
189  }
190 
191  dst[x] = sum / (r + l + 1);
192  }
193 
194  dst += out->linesize[p];
195  src += in->linesize[p];
196 
197  for (i = 0; i < size; i++)
198  srcf[i] += linesize[i];
199  }
200  }
201 
202  return 0;
203 }
204 
205 static int filter_slice16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
206 {
207  ATADenoiseContext *s = ctx->priv;
208  ThreadData *td = arg;
209  AVFrame *in = td->in;
210  AVFrame *out = td->out;
211  const int size = s->size;
212  const int mid = s->mid;
213  int p, x, y, i, j;
214 
215  for (p = 0; p < s->nb_planes; p++) {
216  const int h = s->planeheight[p];
217  const int w = s->planewidth[p];
218  const int slice_start = (h * jobnr) / nb_jobs;
219  const int slice_end = (h * (jobnr+1)) / nb_jobs;
220  const uint16_t *src = (uint16_t *)(in->data[p] + slice_start * in->linesize[p]);
221  uint16_t *dst = (uint16_t *)(out->data[p] + slice_start * out->linesize[p]);
222  const int thra = s->thra[p];
223  const int thrb = s->thrb[p];
224  const uint8_t **data = (const uint8_t **)s->data[p];
225  const int *linesize = (const int *)s->linesize[p];
226  const uint16_t *srcf[SIZE];
227 
228  if (!((1 << p) & s->planes)) {
229  av_image_copy_plane((uint8_t *)dst, out->linesize[p], (uint8_t *)src, in->linesize[p],
230  w * 2, slice_end - slice_start);
231  continue;
232  }
233 
234  for (i = 0; i < s->size; i++)
235  srcf[i] = (const uint16_t *)(data[i] + slice_start * linesize[i]);
236 
237  for (y = slice_start; y < slice_end; y++) {
238  for (x = 0; x < w; x++) {
239  const int srcx = src[x];
240  unsigned lsumdiff = 0, rsumdiff = 0;
241  unsigned ldiff, rdiff;
242  unsigned sum = srcx;
243  int l = 0, r = 0;
244  int srcjx, srcix;
245 
246  for (j = mid - 1, i = mid + 1; j >= 0 && i < size; j--, i++) {
247  srcjx = srcf[j][x];
248 
249  ldiff = FFABS(srcx - srcjx);
250  lsumdiff += ldiff;
251  if (ldiff > thra ||
252  lsumdiff > thrb)
253  break;
254  l++;
255  sum += srcjx;
256 
257  srcix = srcf[i][x];
258 
259  rdiff = FFABS(srcx - srcix);
260  rsumdiff += rdiff;
261  if (rdiff > thra ||
262  rsumdiff > thrb)
263  break;
264  r++;
265  sum += srcix;
266  }
267 
268  dst[x] = sum / (r + l + 1);
269  }
270 
271  dst += out->linesize[p] / 2;
272  src += in->linesize[p] / 2;
273 
274  for (i = 0; i < size; i++)
275  srcf[i] += linesize[i] / 2;
276  }
277  }
278 
279  return 0;
280 }
281 
283 {
285  AVFilterContext *ctx = inlink->dst;
286  ATADenoiseContext *s = ctx->priv;
287  int depth;
288 
289  s->nb_planes = desc->nb_components;
290 
291  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
292  s->planeheight[0] = s->planeheight[3] = inlink->h;
293  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
294  s->planewidth[0] = s->planewidth[3] = inlink->w;
295 
296  depth = desc->comp[0].depth;
297  if (depth == 8)
299  else
301 
302  s->thra[0] = s->fthra[0] * (1 << depth) - 1;
303  s->thra[1] = s->fthra[1] * (1 << depth) - 1;
304  s->thra[2] = s->fthra[2] * (1 << depth) - 1;
305  s->thrb[0] = s->fthrb[0] * (1 << depth) - 1;
306  s->thrb[1] = s->fthrb[1] * (1 << depth) - 1;
307  s->thrb[2] = s->fthrb[2] * (1 << depth) - 1;
308 
309  return 0;
310 }
311 
313 {
314  AVFilterContext *ctx = inlink->dst;
315  AVFilterLink *outlink = ctx->outputs[0];
316  ATADenoiseContext *s = ctx->priv;
317  AVFrame *out, *in;
318  int i;
319 
320  if (s->q.available != s->size) {
321  if (s->q.available < s->mid) {
322  for (i = 0; i < s->mid; i++) {
323  out = av_frame_clone(buf);
324  if (!out) {
325  av_frame_free(&buf);
326  return AVERROR(ENOMEM);
327  }
328  ff_bufqueue_add(ctx, &s->q, out);
329  }
330  }
331  if (s->q.available < s->size) {
332  ff_bufqueue_add(ctx, &s->q, buf);
333  s->available++;
334  }
335  return 0;
336  }
337 
338  in = ff_bufqueue_peek(&s->q, s->mid);
339 
340  if (!ctx->is_disabled) {
341  ThreadData td;
342 
343  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
344  if (!out) {
345  av_frame_free(&buf);
346  return AVERROR(ENOMEM);
347  }
348 
349  for (i = 0; i < s->size; i++) {
350  AVFrame *frame = ff_bufqueue_peek(&s->q, i);
351 
352  s->data[0][i] = frame->data[0];
353  s->data[1][i] = frame->data[1];
354  s->data[2][i] = frame->data[2];
355  s->linesize[0][i] = frame->linesize[0];
356  s->linesize[1][i] = frame->linesize[1];
357  s->linesize[2][i] = frame->linesize[2];
358  }
359 
360  td.in = in; td.out = out;
361  ctx->internal->execute(ctx, s->filter_slice, &td, NULL,
362  FFMIN3(s->planeheight[1],
363  s->planeheight[2],
365  av_frame_copy_props(out, in);
366  } else {
367  out = av_frame_clone(in);
368  if (!out) {
369  av_frame_free(&buf);
370  return AVERROR(ENOMEM);
371  }
372  }
373 
374  in = ff_bufqueue_get(&s->q);
375  av_frame_free(&in);
376  ff_bufqueue_add(ctx, &s->q, buf);
377 
378  return ff_filter_frame(outlink, out);
379 }
380 
381 static int request_frame(AVFilterLink *outlink)
382 {
383  AVFilterContext *ctx = outlink->src;
384  ATADenoiseContext *s = ctx->priv;
385  int ret = 0;
386 
387  ret = ff_request_frame(ctx->inputs[0]);
388 
389  if (ret == AVERROR_EOF && !ctx->is_disabled && s->available) {
391  if (!buf)
392  return AVERROR(ENOMEM);
393 
394  ret = filter_frame(ctx->inputs[0], buf);
395  s->available--;
396  }
397 
398  return ret;
399 }
400 
402 {
403  ATADenoiseContext *s = ctx->priv;
404 
406 }
407 
408 static const AVFilterPad inputs[] = {
409  {
410  .name = "default",
411  .type = AVMEDIA_TYPE_VIDEO,
412  .filter_frame = filter_frame,
413  .config_props = config_input,
414  },
415  { NULL }
416 };
417 
418 static const AVFilterPad outputs[] = {
419  {
420  .name = "default",
421  .type = AVMEDIA_TYPE_VIDEO,
422  .request_frame = request_frame,
423  },
424  { NULL }
425 };
426 
428  .name = "atadenoise",
429  .description = NULL_IF_CONFIG_SMALL("Apply an Adaptive Temporal Averaging Denoiser."),
430  .priv_size = sizeof(ATADenoiseContext),
431  .priv_class = &atadenoise_class,
432  .init = init,
433  .uninit = uninit,
435  .inputs = inputs,
436  .outputs = outputs,
438 };
static AVFrame * ff_bufqueue_get(struct FFBufQueue *queue)
Get the first buffer from the queue and remove it.
Definition: bufferqueue.h:98
#define NULL
Definition: coverity.c:32
static int query_formats(AVFilterContext *ctx)
Definition: vf_atadenoise.c:79
AVFrame * out
Definition: af_adeclick.c:488
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:389
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
AVOption.
Definition: opt.h:246
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:100
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:397
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:68
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:403
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:367
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:391
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
#define src
Definition: vp8dsp.c:254
int is_disabled
the enabled state from the last expression evaluation
Definition: avfilter.h:385
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
Structure holding the queue.
Definition: bufferqueue.h:49
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:368
const char * name
Pad name.
Definition: internal.h:60
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:369
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
AVOptions.
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
static int filter_slice16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:402
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
static const AVFilterPad inputs[]
#define FFMIN3(a, b, c)
Definition: common.h:97
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
#define AVERROR_EOF
End of file.
Definition: error.h:55
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:400
struct FFBufQueue q
Definition: vf_atadenoise.c:53
ptrdiff_t size
Definition: opengl_enc.c:100
void * data[4][SIZE]
Definition: vf_atadenoise.c:54
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:392
#define av_log(a,...)
static const AVOption atadenoise_options[]
Definition: vf_atadenoise.c:65
A filter pad used for either input or output.
Definition: internal.h:54
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
static av_cold int init(AVFilterContext *ctx)
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568
#define td
Definition: regdef.h:70
#define SIZE
Definition: vf_atadenoise.c:40
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
const char * r
Definition: vf_curves.c:114
void * priv
private data for use by the filter
Definition: avfilter.h:353
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
const char * arg
Definition: jacosubdec.c:66
AVFILTER_DEFINE_CLASS(atadenoise)
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
static int filter_slice8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:385
int(* filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_atadenoise.c:59
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:406
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:371
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
uint8_t w
Definition: llviddspenc.c:38
AVFormatContext * ctx
Definition: movenc.c:48
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
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
#define s(width, name)
Definition: cbs_vp9.c:257
static void ff_bufqueue_discard_all(struct FFBufQueue *queue)
Unref and remove all buffers from the queue.
Definition: bufferqueue.h:111
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:386
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:405
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:540
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:398
static av_cold void uninit(AVFilterContext *ctx)
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:395
#define OFFSET(x)
Definition: vf_atadenoise.c:62
unsigned short available
number of available buffers
Definition: bufferqueue.h:52
Used for passing data between threads.
Definition: dsddec.c:64
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
#define FLAGS
Definition: vf_atadenoise.c:63
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:370
void * buf
Definition: avisynth_c.h:766
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
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:387
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:393
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:384
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:133
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:396
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:404
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:388
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:394
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
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
int linesize[4][SIZE]
Definition: vf_atadenoise.c:55
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
Y , 8bpp.
Definition: pixfmt.h:74
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
avfilter_execute_func * execute
Definition: internal.h:155
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2029
AVFilter ff_vf_atadenoise
A list of supported formats for one end of a filter link.
Definition: formats.h:64
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
An instance of a filter.
Definition: avfilter.h:338
FILE * out
Definition: movenc.c:54
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
static int request_frame(AVFilterLink *outlink)
static void ff_bufqueue_add(void *log, struct FFBufQueue *queue, AVFrame *buf)
Add a buffer to the queue.
Definition: bufferqueue.h:71
static int config_input(AVFilterLink *inlink)
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
Definition: avfilter.c:407
AVFrame * in
Definition: af_afftdn.c:1082
formats
Definition: signature.h:48
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:338
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 depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:399
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
static const AVFilterPad outputs[]
static AVFrame * ff_bufqueue_peek(struct FFBufQueue *queue, unsigned index)
Get a buffer from the queue without altering it.
Definition: bufferqueue.h:87