FFmpeg
vf_median.c
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1 /*
2  * Copyright (c) 2019 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  * Redistribution and use in source and binary forms, with or without modification,
20  * are permitted provided that the following conditions are met:
21  */
22 
23 #include "libavutil/imgutils.h"
24 #include "libavutil/opt.h"
25 #include "libavutil/pixdesc.h"
26 #include "avfilter.h"
27 #include "formats.h"
28 #include "internal.h"
29 #include "median.h"
30 #include "video.h"
31 
32 #define DEPTH 8
33 #include "median_template.c"
34 
35 #undef DEPTH
36 #define DEPTH 9
37 #include "median_template.c"
38 
39 #undef DEPTH
40 #define DEPTH 10
41 #include "median_template.c"
42 
43 #undef DEPTH
44 #define DEPTH 12
45 #include "median_template.c"
46 
47 #undef DEPTH
48 #define DEPTH 14
49 #include "median_template.c"
50 
51 #undef DEPTH
52 #define DEPTH 16
53 #include "median_template.c"
54 
55 #define OFFSET(x) offsetof(MedianContext, x)
56 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
57 
58 static const AVOption median_options[] = {
59  { "radius", "set median radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=1}, 1, 127, FLAGS },
60  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
61  { "radiusV", "set median vertical radius", OFFSET(radiusV), AV_OPT_TYPE_INT, {.i64=0},0, 127, FLAGS },
62  { "percentile", "set median percentile", OFFSET(percentile), AV_OPT_TYPE_FLOAT, {.dbl=.5}, 0., 1., FLAGS },
63  { NULL }
64 };
65 
66 AVFILTER_DEFINE_CLASS(median);
67 
68 static void hadd(htype *dst, const htype *src, int bins)
69 {
70  for (int i = 0; i < bins; i++)
71  dst[i] += src[i];
72 }
73 
74 static void hsub(htype *dst, const htype *src, int bins)
75 {
76  for (int i = 0; i < bins; i++)
77  dst[i] -= src[i];
78 }
79 
80 static void hmuladd(htype *dst, const htype *src, int f, int bins)
81 {
82  for (int i = 0; i < bins; i++)
83  dst[i] += f * src[i];
84 }
85 
87 {
88  static const enum AVPixelFormat pix_fmts[] = {
108  };
109 
111 }
112 
114 {
115  for (int i = 0; i < s->nb_planes; i++) {
116  if (!(s->planes & (1 << i)))
117  continue;
118 
119  if (s->planewidth[i] < s->radius * 2 + 1) {
120  av_log(inlink->dst, AV_LOG_WARNING, "The %d plane width %d must be not less than %d, clipping radius.\n", i, s->planewidth[i], s->radius * 2 + 1);
121  s->radius = (s->planewidth[i] - 1) / 2;
122  }
123 
124  if (s->planeheight[i] < s->radiusV * 2 + 1) {
125  av_log(inlink->dst, AV_LOG_WARNING, "The %d plane height %d must be not less than %d, clipping radiusV.\n", i, s->planeheight[i], s->radiusV * 2 + 1);
126  s->radiusV = (s->planeheight[i] - 1) / 2;
127  }
128  }
129 
130  s->t = (2 * s->radius * s->radiusV + s->radiusV + s->radius) * 2.f * s->percentile;
131 }
132 
134 {
136  MedianContext *s = inlink->dst->priv;
137 
138  s->depth = desc->comp[0].depth;
139  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
140  s->planewidth[0] = s->planewidth[3] = inlink->w;
141  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
142  s->planeheight[0] = s->planeheight[3] = inlink->h;
143 
144  s->radiusV = !s->radiusV ? s->radius : s->radiusV;
145  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
146 
148 
149  s->nb_threads = FFMAX(1, FFMIN(s->planeheight[1] / (s->radiusV + 1), ff_filter_get_nb_threads(inlink->dst)));
150  s->bins = 1 << ((s->depth + 1) / 2);
151  s->fine_size = s->bins * s->bins * inlink->w;
152  s->coarse_size = s->bins * inlink->w;
153  s->coarse = av_calloc(s->nb_threads, sizeof(*s->coarse));
154  s->fine = av_calloc(s->nb_threads, sizeof(*s->fine));
155  if (!s->coarse || !s->fine)
156  return AVERROR(ENOMEM);
157  for (int i = 0; i < s->nb_threads; i++) {
158  s->coarse[i] = av_malloc_array(s->coarse_size, sizeof(**s->coarse));
159  s->fine[i] = av_malloc_array(s->fine_size, sizeof(**s->fine));
160  if (!s->coarse[i] || !s->fine[i])
161  return AVERROR(ENOMEM);
162  }
163 
164  s->hadd = hadd;
165  s->hsub = hsub;
166  s->hmuladd = hmuladd;
167 
168  switch (s->depth) {
169  case 8: s->filter_plane = filter_plane_8; break;
170  case 9: s->filter_plane = filter_plane_9; break;
171  case 10: s->filter_plane = filter_plane_10; break;
172  case 12: s->filter_plane = filter_plane_12; break;
173  case 14: s->filter_plane = filter_plane_14; break;
174  case 16: s->filter_plane = filter_plane_16; break;
175  }
176 
177  return 0;
178 }
179 
180 typedef struct ThreadData {
181  AVFrame *in, *out;
182 } ThreadData;
183 
184 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
185 {
186  MedianContext *s = ctx->priv;
187  ThreadData *td = arg;
188  AVFrame *in = td->in;
189  AVFrame *out = td->out;
190 
191  for (int plane = 0; plane < s->nb_planes; plane++) {
192  const int h = s->planeheight[plane];
193  const int w = s->planewidth[plane];
194  const int slice_h_start = (h * jobnr) / nb_jobs;
195  const int slice_h_end = (h * (jobnr+1)) / nb_jobs;
196 
197  if (!(s->planes & (1 << plane))) {
198  av_image_copy_plane(out->data[plane] + slice_h_start * out->linesize[plane],
199  out->linesize[plane],
200  in->data[plane] + slice_h_start * in->linesize[plane],
201  in->linesize[plane],
202  w * ((s->depth + 7) / 8),
203  slice_h_end - slice_h_start);
204  continue;
205  }
206 
207  s->filter_plane(ctx, in->data[plane],
208  in->linesize[plane],
209  out->data[plane] + slice_h_start * out->linesize[plane],
210  out->linesize[plane], w, h,
211  slice_h_start, slice_h_end, jobnr);
212  }
213 
214  return 0;
215 }
216 
218 {
219  AVFilterContext *ctx = inlink->dst;
220  MedianContext *s = ctx->priv;
221  AVFilterLink *outlink = ctx->outputs[0];
222  ThreadData td;
223  AVFrame *out;
224 
225  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
226  if (!out) {
227  av_frame_free(&in);
228  return AVERROR(ENOMEM);
229  }
231 
232  td.in = in; td.out = out;
233  ff_filter_execute(ctx, filter_slice, &td, NULL, s->nb_threads);
234 
235  av_frame_free(&in);
236  return ff_filter_frame(outlink, out);
237 }
238 
240 {
241  MedianContext *s = ctx->priv;
242 
243  for (int i = 0; i < s->nb_threads && s->coarse && s->fine; i++) {
244  av_freep(&s->coarse[i]);
245  av_freep(&s->fine[i]);
246  }
247 
248  av_freep(&s->coarse);
249  av_freep(&s->fine);
250 }
251 
252 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
253  char *res, int res_len, int flags)
254 {
255  MedianContext *s = ctx->priv;
256  int ret;
257 
258  ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
259  if (ret < 0)
260  return ret;
261 
262  if (!s->radiusV)
263  s->radiusV = s->radius;
264  check_params(s, ctx->inputs[0]);
265 
266  return 0;
267 }
268 
269 static const AVFilterPad median_inputs[] = {
270  {
271  .name = "default",
272  .type = AVMEDIA_TYPE_VIDEO,
273  .config_props = config_input,
274  .filter_frame = filter_frame,
275  },
276 };
277 
278 static const AVFilterPad median_outputs[] = {
279  {
280  .name = "default",
281  .type = AVMEDIA_TYPE_VIDEO,
282  },
283 };
284 
286  .name = "median",
287  .description = NULL_IF_CONFIG_SMALL("Apply Median filter."),
288  .priv_size = sizeof(MedianContext),
289  .priv_class = &median_class,
290  .uninit = uninit,
295  .process_command = process_command,
296 };
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:98
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:432
median.h
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:411
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
median_template.c
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
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:1019
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2540
htype
#define htype
Definition: median_template.c:37
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
MedianContext
Definition: median.h:28
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:112
OFFSET
#define OFFSET(x)
Definition: vf_median.c:55
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:424
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:38
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:426
AVOption
AVOption.
Definition: opt.h:247
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:389
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
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:153
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:492
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:427
median_inputs
static const AVFilterPad median_inputs[]
Definition: vf_median.c:269
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
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
hsub
static void hsub(htype *dst, const htype *src, int bins)
Definition: vf_median.c:74
formats.h
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2580
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:423
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:407
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:405
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
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:373
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:50
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
planes
static const struct @318 planes[]
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:401
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
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:409
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:410
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:51
ff_set_common_formats_from_list
int ff_set_common_formats_from_list(AVFilterContext *ctx, const int *fmts)
Equivalent to ff_set_common_formats(ctx, ff_make_format_list(fmts))
Definition: formats.c:703
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:290
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
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:372
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
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:152
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
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:370
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:408
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:537
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
median_options
static const AVOption median_options[]
Definition: vf_median.c:58
src
#define src
Definition: vp8dsp.c:255
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(median)
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
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:404
FLAGS
#define FLAGS
Definition: vf_median.c:56
check_params
static void check_params(MedianContext *s, AVFilterLink *inlink)
Definition: vf_median.c:113
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_median.c:133
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
hadd
static void hadd(htype *dst, const htype *src, int bins)
Definition: vf_median.c:68
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:394
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_median.c:239
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:396
ff_filter_process_command
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
Definition: avfilter.c:883
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_median.c:86
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
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:428
internal.h
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#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:130
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:227
i
int i
Definition: input.c:406
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_median.c:217
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_median.c:252
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:406
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:804
ThreadData
Used for passing data between threads.
Definition: dsddec.c:67
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
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:56
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:271
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:388
AVFilter
Filter definition.
Definition: avfilter.h:149
ret
ret
Definition: filter_design.txt:187
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
ff_vf_median
const AVFilter ff_vf_median
Definition: vf_median.c:285
filter_slice
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_median.c:184
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:224
avfilter.h
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:346
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:121
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
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:171
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:153
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
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
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
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_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:395
h
h
Definition: vp9dsp_template.c:2038
hmuladd
static void hmuladd(htype *dst, const htype *src, int f, int bins)
Definition: vf_median.c:80
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:399
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:371
ff_filter_execute
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: internal.h:143
median_outputs
static const AVFilterPad median_outputs[]
Definition: vf_median.c:278
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
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:397