FFmpeg
vf_deflicker.c
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1 /*
2  * Copyright (c) 2017 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 "libavutil/imgutils.h"
22 #include "libavutil/opt.h"
23 #include "libavutil/pixdesc.h"
24 #include "libavutil/qsort.h"
25 #include "avfilter.h"
26 
27 #define FF_BUFQUEUE_SIZE 129
28 #include "bufferqueue.h"
29 
30 #include "formats.h"
31 #include "internal.h"
32 #include "video.h"
33 
34 #define SIZE FF_BUFQUEUE_SIZE
35 
45 };
46 
47 typedef struct DeflickerContext {
48  const AVClass *class;
49 
50  int size;
51  int mode;
52  int bypass;
53 
54  int eof;
55  int depth;
56  int nb_planes;
57  int planewidth[4];
58  int planeheight[4];
59 
60  uint64_t *histogram;
61  float luminance[SIZE];
62  float sorted[SIZE];
63 
64  struct FFBufQueue q;
65  int available;
66 
67  void (*get_factor)(AVFilterContext *ctx, float *f);
69  int (*deflicker)(AVFilterContext *ctx, const uint8_t *src, ptrdiff_t src_linesize,
70  uint8_t *dst, ptrdiff_t dst_linesize, int w, int h, float f);
72 
73 #define OFFSET(x) offsetof(DeflickerContext, x)
74 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
75 
76 static const AVOption deflicker_options[] = {
77  { "size", "set how many frames to use", OFFSET(size), AV_OPT_TYPE_INT, {.i64=5}, 2, SIZE, FLAGS },
78  { "s", "set how many frames to use", OFFSET(size), AV_OPT_TYPE_INT, {.i64=5}, 2, SIZE, FLAGS },
79  { "mode", "set how to smooth luminance", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_SMOOTH_MODE-1, FLAGS, "mode" },
80  { "m", "set how to smooth luminance", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_SMOOTH_MODE-1, FLAGS, "mode" },
81  { "am", "arithmetic mean", 0, AV_OPT_TYPE_CONST, {.i64=ARITHMETIC_MEAN}, 0, 0, FLAGS, "mode" },
82  { "gm", "geometric mean", 0, AV_OPT_TYPE_CONST, {.i64=GEOMETRIC_MEAN}, 0, 0, FLAGS, "mode" },
83  { "hm", "harmonic mean", 0, AV_OPT_TYPE_CONST, {.i64=HARMONIC_MEAN}, 0, 0, FLAGS, "mode" },
84  { "qm", "quadratic mean", 0, AV_OPT_TYPE_CONST, {.i64=QUADRATIC_MEAN}, 0, 0, FLAGS, "mode" },
85  { "cm", "cubic mean", 0, AV_OPT_TYPE_CONST, {.i64=CUBIC_MEAN}, 0, 0, FLAGS, "mode" },
86  { "pm", "power mean", 0, AV_OPT_TYPE_CONST, {.i64=POWER_MEAN}, 0, 0, FLAGS, "mode" },
87  { "median", "median", 0, AV_OPT_TYPE_CONST, {.i64=MEDIAN}, 0, 0, FLAGS, "mode" },
88  { "bypass", "leave frames unchanged", OFFSET(bypass), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
89  { NULL }
90 };
91 
92 AVFILTER_DEFINE_CLASS(deflicker);
93 
95 {
96  static const enum AVPixelFormat pixel_fmts[] = {
117  };
119  if (!formats)
120  return AVERROR(ENOMEM);
122 }
123 
125  const uint8_t *src, ptrdiff_t src_linesize,
126  uint8_t *dst, ptrdiff_t dst_linesize,
127  int w, int h, float f)
128 {
129  int x, y;
130 
131  for (y = 0; y < h; y++) {
132  for (x = 0; x < w; x++) {
133  dst[x] = av_clip_uint8(src[x] * f);
134  }
135 
136  dst += dst_linesize;
137  src += src_linesize;
138  }
139 
140  return 0;
141 }
142 
144  const uint8_t *ssrc, ptrdiff_t src_linesize,
145  uint8_t *ddst, ptrdiff_t dst_linesize,
146  int w, int h, float f)
147 {
148  DeflickerContext *s = ctx->priv;
149  const uint16_t *src = (const uint16_t *)ssrc;
150  uint16_t *dst = (uint16_t *)ddst;
151  const int max = (1 << s->depth) - 1;
152  int x, y;
153 
154  for (y = 0; y < h; y++) {
155  for (x = 0; x < w; x++) {
156  dst[x] = av_clip(src[x] * f, 0, max);
157  }
158 
159  dst += dst_linesize / 2;
160  src += src_linesize / 2;
161  }
162 
163  return 0;
164 }
165 
167 {
168  DeflickerContext *s = ctx->priv;
169  const uint8_t *src = in->data[0];
170  int64_t sum = 0;
171  int y, x;
172 
173  memset(s->histogram, 0, (1 << s->depth) * sizeof(*s->histogram));
174 
175  for (y = 0; y < s->planeheight[0]; y++) {
176  for (x = 0; x < s->planewidth[0]; x++) {
177  s->histogram[src[x]]++;
178  }
179  src += in->linesize[0];
180  }
181 
182  for (y = 0; y < 1 << s->depth; y++) {
183  sum += s->histogram[y] * y;
184  }
185 
186  return 1.0f * sum / (s->planeheight[0] * s->planewidth[0]);
187 }
188 
190 {
191  DeflickerContext *s = ctx->priv;
192  const uint16_t *src = (const uint16_t *)in->data[0];
193  int64_t sum = 0;
194  int y, x;
195 
196  memset(s->histogram, 0, (1 << s->depth) * sizeof(*s->histogram));
197 
198  for (y = 0; y < s->planeheight[0]; y++) {
199  for (x = 0; x < s->planewidth[0]; x++) {
200  s->histogram[src[x]]++;
201  }
202  src += in->linesize[0] / 2;
203  }
204 
205  for (y = 0; y < 1 << s->depth; y++) {
206  sum += s->histogram[y] * y;
207  }
208 
209  return 1.0f * sum / (s->planeheight[0] * s->planewidth[0]);
210 }
211 
212 static void get_am_factor(AVFilterContext *ctx, float *f)
213 {
214  DeflickerContext *s = ctx->priv;
215  int y;
216 
217  *f = 0.0f;
218 
219  for (y = 0; y < s->size; y++) {
220  *f += s->luminance[y];
221  }
222 
223  *f /= s->size;
224  *f /= s->luminance[0];
225 }
226 
227 static void get_gm_factor(AVFilterContext *ctx, float *f)
228 {
229  DeflickerContext *s = ctx->priv;
230  int y;
231 
232  *f = 1;
233 
234  for (y = 0; y < s->size; y++) {
235  *f *= s->luminance[y];
236  }
237 
238  *f = pow(*f, 1.0f / s->size);
239  *f /= s->luminance[0];
240 }
241 
242 static void get_hm_factor(AVFilterContext *ctx, float *f)
243 {
244  DeflickerContext *s = ctx->priv;
245  int y;
246 
247  *f = 0.0f;
248 
249  for (y = 0; y < s->size; y++) {
250  *f += 1.0f / s->luminance[y];
251  }
252 
253  *f = s->size / *f;
254  *f /= s->luminance[0];
255 }
256 
257 static void get_qm_factor(AVFilterContext *ctx, float *f)
258 {
259  DeflickerContext *s = ctx->priv;
260  int y;
261 
262  *f = 0.0f;
263 
264  for (y = 0; y < s->size; y++) {
265  *f += s->luminance[y] * s->luminance[y];
266  }
267 
268  *f /= s->size;
269  *f = sqrtf(*f);
270  *f /= s->luminance[0];
271 }
272 
273 static void get_cm_factor(AVFilterContext *ctx, float *f)
274 {
275  DeflickerContext *s = ctx->priv;
276  int y;
277 
278  *f = 0.0f;
279 
280  for (y = 0; y < s->size; y++) {
281  *f += s->luminance[y] * s->luminance[y] * s->luminance[y];
282  }
283 
284  *f /= s->size;
285  *f = cbrtf(*f);
286  *f /= s->luminance[0];
287 }
288 
289 static void get_pm_factor(AVFilterContext *ctx, float *f)
290 {
291  DeflickerContext *s = ctx->priv;
292  int y;
293 
294  *f = 0.0f;
295 
296  for (y = 0; y < s->size; y++) {
297  *f += powf(s->luminance[y], s->size);
298  }
299 
300  *f /= s->size;
301  *f = powf(*f, 1.0f / s->size);
302  *f /= s->luminance[0];
303 }
304 
305 static int comparef(const void *a, const void *b)
306 {
307  const float *aa = a, *bb = b;
308  return round(aa - bb);
309 }
310 
311 static void get_median_factor(AVFilterContext *ctx, float *f)
312 {
313  DeflickerContext *s = ctx->priv;
314 
315  memcpy(s->sorted, s->luminance, sizeof(s->sorted));
316  AV_QSORT(s->sorted, s->size, float, comparef);
317 
318  *f = s->sorted[s->size >> 1] / s->luminance[0];
319 }
320 
322 {
324  AVFilterContext *ctx = inlink->dst;
325  DeflickerContext *s = ctx->priv;
326 
327  s->nb_planes = desc->nb_components;
328 
329  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
330  s->planeheight[0] = s->planeheight[3] = inlink->h;
331  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
332  s->planewidth[0] = s->planewidth[3] = inlink->w;
333 
334  s->depth = desc->comp[0].depth;
335  if (s->depth == 8) {
336  s->deflicker = deflicker8;
337  s->calc_avgy = calc_avgy8;
338  } else {
339  s->deflicker = deflicker16;
340  s->calc_avgy = calc_avgy16;
341  }
342 
343  s->histogram = av_calloc(1 << s->depth, sizeof(*s->histogram));
344  if (!s->histogram)
345  return AVERROR(ENOMEM);
346 
347  switch (s->mode) {
348  case MEDIAN: s->get_factor = get_median_factor; break;
349  case ARITHMETIC_MEAN: s->get_factor = get_am_factor; break;
350  case GEOMETRIC_MEAN: s->get_factor = get_gm_factor; break;
351  case HARMONIC_MEAN: s->get_factor = get_hm_factor; break;
352  case QUADRATIC_MEAN: s->get_factor = get_qm_factor; break;
353  case CUBIC_MEAN: s->get_factor = get_cm_factor; break;
354  case POWER_MEAN: s->get_factor = get_pm_factor; break;
355  }
356 
357  return 0;
358 }
359 
361 {
362  AVFilterContext *ctx = inlink->dst;
363  AVFilterLink *outlink = ctx->outputs[0];
364  DeflickerContext *s = ctx->priv;
365  AVDictionary **metadata;
366  AVFrame *out, *in;
367  float f;
368  int y;
369 
370  if (s->q.available < s->size && !s->eof) {
371  s->luminance[s->available] = s->calc_avgy(ctx, buf);
372  ff_bufqueue_add(ctx, &s->q, buf);
373  s->available++;
374  return 0;
375  }
376 
377  in = ff_bufqueue_peek(&s->q, 0);
378 
379  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
380  if (!out) {
381  av_frame_free(&buf);
382  return AVERROR(ENOMEM);
383  }
384 
385  s->get_factor(ctx, &f);
386  if (!s->bypass)
387  s->deflicker(ctx, in->data[0], in->linesize[0], out->data[0], out->linesize[0],
388  outlink->w, outlink->h, f);
389  for (y = 1 - s->bypass; y < s->nb_planes; y++) {
390  av_image_copy_plane(out->data[y], out->linesize[y],
391  in->data[y], in->linesize[y],
392  s->planewidth[y] * (1 + (s->depth > 8)), s->planeheight[y]);
393  }
394 
396  metadata = &out->metadata;
397  if (metadata) {
398  uint8_t value[128];
399 
400  snprintf(value, sizeof(value), "%f", s->luminance[0]);
401  av_dict_set(metadata, "lavfi.deflicker.luminance", value, 0);
402 
403  snprintf(value, sizeof(value), "%f", s->luminance[0] * f);
404  av_dict_set(metadata, "lavfi.deflicker.new_luminance", value, 0);
405 
406  snprintf(value, sizeof(value), "%f", f - 1.0f);
407  av_dict_set(metadata, "lavfi.deflicker.relative_change", value, 0);
408  }
409 
410  in = ff_bufqueue_get(&s->q);
411  av_frame_free(&in);
412  memmove(&s->luminance[0], &s->luminance[1], sizeof(*s->luminance) * (s->size - 1));
413  s->luminance[s->available - 1] = s->calc_avgy(ctx, buf);
414  ff_bufqueue_add(ctx, &s->q, buf);
415 
416  return ff_filter_frame(outlink, out);
417 }
418 
419 static int request_frame(AVFilterLink *outlink)
420 {
421  AVFilterContext *ctx = outlink->src;
422  DeflickerContext *s = ctx->priv;
423  int ret;
424 
425  ret = ff_request_frame(ctx->inputs[0]);
426  if (ret == AVERROR_EOF && s->available > 0) {
427  AVFrame *buf = ff_bufqueue_peek(&s->q, s->available - 1);
428  if (!buf)
429  return AVERROR(ENOMEM);
430  buf = av_frame_clone(buf);
431  if (!buf)
432  return AVERROR(ENOMEM);
433 
434  s->eof = 1;
435  ret = filter_frame(ctx->inputs[0], buf);
436  s->available--;
437  }
438 
439  return ret;
440 }
441 
443 {
444  DeflickerContext *s = ctx->priv;
445 
447  av_freep(&s->histogram);
448 }
449 
450 static const AVFilterPad inputs[] = {
451  {
452  .name = "default",
453  .type = AVMEDIA_TYPE_VIDEO,
454  .filter_frame = filter_frame,
455  .config_props = config_input,
456  },
457  { NULL }
458 };
459 
460 static const AVFilterPad outputs[] = {
461  {
462  .name = "default",
463  .type = AVMEDIA_TYPE_VIDEO,
464  .request_frame = request_frame,
465  },
466  { NULL }
467 };
468 
470  .name = "deflicker",
471  .description = NULL_IF_CONFIG_SMALL("Remove temporal frame luminance variations."),
472  .priv_size = sizeof(DeflickerContext),
473  .priv_class = &deflicker_class,
474  .uninit = uninit,
476  .inputs = inputs,
477  .outputs = outputs,
478 };
GEOMETRIC_MEAN
@ GEOMETRIC_MEAN
Definition: vf_deflicker.c:38
formats
formats
Definition: signature.h:48
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:99
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:432
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
av_clip
#define av_clip
Definition: common.h:122
get_gm_factor
static void get_gm_factor(AVFilterContext *ctx, float *f)
Definition: vf_deflicker.c:227
DeflickerContext::luminance
float luminance[SIZE]
Definition: vf_deflicker.c:61
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_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
DeflickerContext::available
int available
Definition: vf_deflicker.c:65
get_am_factor
static void get_am_factor(AVFilterContext *ctx, float *f)
Definition: vf_deflicker.c:212
out
FILE * out
Definition: movenc.c:54
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:978
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2541
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:55
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
comparef
static int comparef(const void *a, const void *b)
Definition: vf_deflicker.c:305
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:111
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:424
DeflickerContext::eof
int eof
Definition: vf_deflicker.c:54
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:431
w
uint8_t w
Definition: llviddspenc.c:39
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:426
AVOption
AVOption.
Definition: opt.h:248
b
#define b
Definition: input.c:41
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:389
ff_request_frame
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
Definition: avfilter.c:395
deflicker_options
static const AVOption deflicker_options[]
Definition: vf_deflicker.c:76
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
max
#define max(a, b)
Definition: cuda_runtime.h:33
AVDictionary
Definition: dict.c:30
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:427
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:369
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:317
ff_bufqueue_get
static AVFrame * ff_bufqueue_get(struct FFBufQueue *queue)
Get the first buffer from the queue and remove it.
Definition: bufferqueue.h:98
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:65
formats.h
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:423
OFFSET
#define OFFSET(x)
Definition: vf_deflicker.c:73
FLAGS
#define FLAGS
Definition: vf_deflicker.c:74
get_pm_factor
static void get_pm_factor(AVFilterContext *ctx, float *f)
Definition: vf_deflicker.c:289
DeflickerContext::calc_avgy
float(* calc_avgy)(AVFilterContext *ctx, AVFrame *in)
Definition: vf_deflicker.c:68
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:433
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:387
DeflickerContext::get_factor
void(* get_factor)(AVFilterContext *ctx, float *f)
Definition: vf_deflicker.c:67
NB_SMOOTH_MODE
@ NB_SMOOTH_MODE
Definition: vf_deflicker.c:44
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:373
ARITHMETIC_MEAN
@ ARITHMETIC_MEAN
Definition: vf_deflicker.c:37
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:392
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:248
deflicker16
static int deflicker16(AVFilterContext *ctx, const uint8_t *ssrc, ptrdiff_t src_linesize, uint8_t *ddst, ptrdiff_t dst_linesize, int w, int h, float f)
Definition: vf_deflicker.c:143
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:401
ff_set_common_formats
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:580
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:402
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
calc_avgy8
static float calc_avgy8(AVFilterContext *ctx, AVFrame *in)
Definition: vf_deflicker.c:166
CUBIC_MEAN
@ CUBIC_MEAN
Definition: vf_deflicker.c:41
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:430
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:386
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:400
ctx
AVFormatContext * ctx
Definition: movenc.c:48
DeflickerContext::bypass
int bypass
Definition: vf_deflicker.c:52
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:372
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:423
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
f
#define f(width, name)
Definition: cbs_vp9.c:255
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
DeflickerContext::planeheight
int planeheight[4]
Definition: vf_deflicker.c:58
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:370
DeflickerContext
Definition: vf_deflicker.c:47
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
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:536
ff_vf_deflicker
const AVFilter ff_vf_deflicker
Definition: vf_deflicker.c:469
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
DeflickerContext::mode
int mode
Definition: vf_deflicker.c:51
src
#define src
Definition: vp8dsp.c:255
ff_bufqueue_discard_all
static void ff_bufqueue_discard_all(struct FFBufQueue *queue)
Unref and remove all buffers from the queue.
Definition: bufferqueue.h:111
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:391
MEDIAN
@ MEDIAN
Definition: vf_deflicker.c:43
DeflickerContext::histogram
uint64_t * histogram
Definition: vf_deflicker.c:60
DeflickerContext::size
int size
Definition: vf_deflicker.c:50
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:390
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
outputs
static const AVFilterPad outputs[]
Definition: vf_deflicker.c:460
request_frame
static int request_frame(AVFilterLink *outlink)
Definition: vf_deflicker.c:419
SIZE
#define SIZE
Definition: vf_deflicker.c:34
bufferqueue.h
qsort.h
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:117
powf
#define powf(x, y)
Definition: libm.h:50
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:394
size
int size
Definition: twinvq_data.h:10344
inputs
static const AVFilterPad inputs[]
Definition: vf_deflicker.c:450
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:396
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_deflicker.c:442
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:167
deflicker8
static int deflicker8(AVFilterContext *ctx, const uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h, float f)
Definition: vf_deflicker.c:124
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:428
ff_bufqueue_add
static void ff_bufqueue_add(void *log, struct FFBufQueue *queue, AVFrame *buf)
Add a buffer to the queue.
Definition: bufferqueue.h:71
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
Definition: vf_deflicker.c:360
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(deflicker)
DeflickerContext::sorted
float sorted[SIZE]
Definition: vf_deflicker.c:62
internal.h
get_median_factor
static void get_median_factor(AVFilterContext *ctx, float *f)
Definition: vf_deflicker.c:311
QUADRATIC_MEAN
@ QUADRATIC_MEAN
Definition: vf_deflicker.c:40
POWER_MEAN
@ POWER_MEAN
Definition: vf_deflicker.c:42
ff_bufqueue_peek
static AVFrame * ff_bufqueue_peek(struct FFBufQueue *queue, unsigned index)
Get a buffer from the queue without altering it.
Definition: bufferqueue.h:87
AV_QSORT
#define AV_QSORT(p, num, type, cmp)
Quicksort This sort is fast, and fully inplace but not stable and it is possible to construct input t...
Definition: qsort.h:33
round
static av_always_inline av_const double round(double x)
Definition: libm.h:444
FFBufQueue
Structure holding the queue.
Definition: bufferqueue.h:49
value
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 value
Definition: writing_filters.txt:86
cbrtf
static av_always_inline float cbrtf(float x)
Definition: libm.h:61
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:388
AVFilter
Filter definition.
Definition: avfilter.h:145
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_deflicker.c:94
DeflickerContext::deflicker
int(* deflicker)(AVFilterContext *ctx, const uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h, float f)
Definition: vf_deflicker.c:69
ret
ret
Definition: filter_design.txt:187
DeflickerContext::planewidth
int planewidth[4]
Definition: vf_deflicker.c:57
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:425
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:393
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:398
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:252
smooth_mode
smooth_mode
Definition: vf_deflicker.c:36
mode
mode
Definition: ebur128.h:83
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:429
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
get_qm_factor
static void get_qm_factor(AVFilterContext *ctx, float *f)
Definition: vf_deflicker.c:257
av_clip_uint8
#define av_clip_uint8
Definition: common.h:128
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:333
DeflickerContext::depth
int depth
Definition: vf_deflicker.c:55
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:70
get_cm_factor
static void get_cm_factor(AVFilterContext *ctx, float *f)
Definition: vf_deflicker.c:273
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:242
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
av_dict_set
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
DeflickerContext::nb_planes
int nb_planes
Definition: vf_deflicker.c:56
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_deflicker.c:321
imgutils.h
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:334
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:395
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:399
HARMONIC_MEAN
@ HARMONIC_MEAN
Definition: vf_deflicker.c:39
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:371
DeflickerContext::q
struct FFBufQueue q
Definition: vf_deflicker.c:64
int
int
Definition: ffmpeg_filter.c:156
calc_avgy16
static float calc_avgy16(AVFilterContext *ctx, AVFrame *in)
Definition: vf_deflicker.c:189
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
snprintf
#define snprintf
Definition: snprintf.h:34
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:166
get_hm_factor
static void get_hm_factor(AVFilterContext *ctx, float *f)
Definition: vf_deflicker.c:242
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:397