FFmpeg
vf_threshold.c
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1 /*
2  * Copyright (c) 2016 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  * threshold video filter
24  */
25 
26 #include "libavutil/imgutils.h"
27 #include "libavutil/internal.h"
28 #include "libavutil/opt.h"
29 #include "libavutil/pixdesc.h"
30 #include "avfilter.h"
31 #include "framesync.h"
32 #include "internal.h"
33 #include "video.h"
34 #include "threshold.h"
35 #include "vf_threshold_init.h"
36 
37 #define OFFSET(x) offsetof(ThresholdContext, x)
38 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
39 
40 static const AVOption threshold_options[] = {
41  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, FLAGS},
42  { NULL }
43 };
44 
45 AVFILTER_DEFINE_CLASS(threshold);
46 
47 static const enum AVPixelFormat pix_fmts[] = {
67 };
68 
69 typedef struct ThreadData {
70  AVFrame *in;
74  AVFrame *out;
75 } ThreadData;
76 
77 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
78 {
79  ThresholdContext *s = ctx->priv;
80  ThreadData *td = arg;
81  AVFrame *min = td->min;
82  AVFrame *max = td->max;
83  AVFrame *threshold = td->threshold;
84  AVFrame *in = td->in;
85  AVFrame *out = td->out;
86 
87  for (int p = 0; p < s->nb_planes; p++) {
88  const int h = s->height[p];
89  const int slice_start = (h * jobnr) / nb_jobs;
90  const int slice_end = (h * (jobnr+1)) / nb_jobs;
91 
92  if (!(s->planes & (1 << p))) {
93  av_image_copy_plane(out->data[p] + slice_start * out->linesize[p],
94  out->linesize[p],
95  in->data[p] + slice_start * in->linesize[p],
96  in->linesize[p],
97  s->width[p] * s->bpc,
98  slice_end - slice_start);
99  continue;
100  }
101  s->threshold(in->data[p] + slice_start * in->linesize[p],
102  threshold->data[p] + slice_start * threshold->linesize[p],
103  min->data[p] + slice_start * min->linesize[p],
104  max->data[p] + slice_start * max->linesize[p],
105  out->data[p] + slice_start * out->linesize[p],
106  in->linesize[p], threshold->linesize[p],
107  min->linesize[p], max->linesize[p],
108  out->linesize[p],
109  s->width[p], slice_end - slice_start);
110  }
111 
112  return 0;
113 }
114 
116 {
117  AVFilterContext *ctx = fs->parent;
118  ThresholdContext *s = fs->opaque;
119  AVFilterLink *outlink = ctx->outputs[0];
120  AVFrame *out, *in, *threshold, *min, *max;
121  ThreadData td;
122  int ret;
123 
124  if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 0)) < 0 ||
125  (ret = ff_framesync_get_frame(&s->fs, 1, &threshold, 0)) < 0 ||
126  (ret = ff_framesync_get_frame(&s->fs, 2, &min, 0)) < 0 ||
127  (ret = ff_framesync_get_frame(&s->fs, 3, &max, 0)) < 0)
128  return ret;
129 
130  if (ctx->is_disabled) {
131  out = av_frame_clone(in);
132  if (!out)
133  return AVERROR(ENOMEM);
134  } else {
135  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
136  if (!out)
137  return AVERROR(ENOMEM);
139 
140  td.out = out;
141  td.in = in;
142  td.threshold = threshold;
143  td.min = min;
144  td.max = max;
146  FFMIN(s->height[2], ff_filter_get_nb_threads(ctx)));
147  }
148 
149  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
150 
151  return ff_filter_frame(outlink, out);
152 }
153 
155 {
156  AVFilterContext *ctx = inlink->dst;
157  ThresholdContext *s = ctx->priv;
159  int vsub, hsub;
160 
161  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
162 
163  hsub = desc->log2_chroma_w;
164  vsub = desc->log2_chroma_h;
165  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
166  s->height[0] = s->height[3] = inlink->h;
167  s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
168  s->width[0] = s->width[3] = inlink->w;
169  s->depth = desc->comp[0].depth;
170 
172 
173  return 0;
174 }
175 
176 static int config_output(AVFilterLink *outlink)
177 {
178  AVFilterContext *ctx = outlink->src;
179  ThresholdContext *s = ctx->priv;
180  AVFilterLink *base = ctx->inputs[0];
181  AVFilterLink *threshold = ctx->inputs[1];
182  AVFilterLink *min = ctx->inputs[2];
183  AVFilterLink *max = ctx->inputs[3];
184  FFFrameSyncIn *in;
185  int ret;
186 
187  if (base->w != threshold->w ||
188  base->h != threshold->h ||
189  base->w != min->w ||
190  base->h != min->h ||
191  base->w != max->w ||
192  base->h != max->h) {
193  av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
194  "(size %dx%d) do not match the corresponding "
195  "second input link %s parameters (%dx%d) "
196  "and/or third input link %s parameters (%dx%d) "
197  "and/or fourth input link %s parameters (%dx%d)\n",
198  ctx->input_pads[0].name, base->w, base->h,
199  ctx->input_pads[1].name, threshold->w, threshold->h,
200  ctx->input_pads[2].name, min->w, min->h,
201  ctx->input_pads[3].name, max->w, max->h);
202  return AVERROR(EINVAL);
203  }
204 
205  outlink->w = base->w;
206  outlink->h = base->h;
207  outlink->sample_aspect_ratio = base->sample_aspect_ratio;
208  outlink->frame_rate = base->frame_rate;
209 
210  if ((ret = ff_framesync_init(&s->fs, ctx, 4)) < 0)
211  return ret;
212 
213  in = s->fs.in;
214  in[0].time_base = base->time_base;
215  in[1].time_base = threshold->time_base;
216  in[2].time_base = min->time_base;
217  in[3].time_base = max->time_base;
218  in[0].sync = 1;
219  in[0].before = EXT_STOP;
220  in[0].after = EXT_STOP;
221  in[1].sync = 1;
222  in[1].before = EXT_STOP;
223  in[1].after = EXT_STOP;
224  in[2].sync = 1;
225  in[2].before = EXT_STOP;
226  in[2].after = EXT_STOP;
227  in[3].sync = 1;
228  in[3].before = EXT_STOP;
229  in[3].after = EXT_STOP;
230  s->fs.opaque = s;
231  s->fs.on_event = process_frame;
232 
233  ret = ff_framesync_configure(&s->fs);
234  outlink->time_base = s->fs.time_base;
235 
236  return ret;
237 }
238 
240 {
241  ThresholdContext *s = ctx->priv;
242  return ff_framesync_activate(&s->fs);
243 }
244 
246 {
247  ThresholdContext *s = ctx->priv;
248 
249  ff_framesync_uninit(&s->fs);
250 }
251 
252 static const AVFilterPad inputs[] = {
253  {
254  .name = "default",
255  .type = AVMEDIA_TYPE_VIDEO,
256  .config_props = config_input,
257  },
258  {
259  .name = "threshold",
260  .type = AVMEDIA_TYPE_VIDEO,
261  },
262  {
263  .name = "min",
264  .type = AVMEDIA_TYPE_VIDEO,
265  },
266  {
267  .name = "max",
268  .type = AVMEDIA_TYPE_VIDEO,
269  },
270 };
271 
272 static const AVFilterPad outputs[] = {
273  {
274  .name = "default",
275  .type = AVMEDIA_TYPE_VIDEO,
276  .config_props = config_output,
277  },
278 };
279 
281  .name = "threshold",
282  .description = NULL_IF_CONFIG_SMALL("Threshold first video stream using other video streams."),
283  .priv_size = sizeof(ThresholdContext),
284  .priv_class = &threshold_class,
285  .uninit = uninit,
286  .activate = activate,
291  .process_command = ff_filter_process_command,
292 };
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:101
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:502
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:481
FFFrameSyncIn::time_base
AVRational time_base
Time base for the incoming frames.
Definition: framesync.h:117
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:134
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
process_frame
static int process_frame(FFFrameSync *fs)
Definition: vf_threshold.c:115
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
filter_slice
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_threshold.c:77
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:304
out
FILE * out
Definition: movenc.c:54
threshold.h
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1009
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2858
OFFSET
#define OFFSET(x)
Definition: vf_threshold.c:37
ff_framesync_get_frame
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
Definition: framesync.c:267
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:170
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
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:494
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:501
FLAGS
#define FLAGS
Definition: vf_threshold.c:38
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:496
vf_threshold_init.h
AVOption
AVOption.
Definition: opt.h:251
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:459
base
uint8_t base
Definition: vp3data.h:128
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
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:175
FFFrameSync
Frame sync structure.
Definition: framesync.h:168
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:473
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:154
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:497
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:439
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:346
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
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_threshold.c:245
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2898
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:493
EXT_STOP
@ EXT_STOP
Completely stop all streams with this one.
Definition: framesync.h:65
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:477
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:475
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:503
FFFrameSyncIn
Input stream structure.
Definition: framesync.h:102
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:457
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(threshold)
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:443
FFFrameSyncIn::sync
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events.
Definition: framesync.h:160
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:462
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:276
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:471
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:479
s
#define s(width, name)
Definition: cbs_vp9.c:256
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:480
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:472
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:50
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2010
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:500
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:456
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:470
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:442
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:474
av_rescale_q
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
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
planes
static const struct @345 planes[]
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
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:440
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:478
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:603
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:258
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
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:461
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:460
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:474
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:115
ff_vf_threshold
const AVFilter ff_vf_threshold
Definition: vf_threshold.c:280
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:464
ThreadData::min
AVFrame * min
Definition: vf_threshold.c:72
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:466
ThresholdContext
Definition: threshold.h:27
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:873
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:498
internal.h
outputs
static const AVFilterPad outputs[]
Definition: vf_threshold.c:272
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:476
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:793
ThreadData
Used for passing data between threads.
Definition: dsddec.c:69
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:55
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:458
AVFilter
Filter definition.
Definition: avfilter.h:171
ff_threshold_init
static av_unused void ff_threshold_init(ThresholdContext *s)
Definition: vf_threshold_init.h:77
ret
ret
Definition: filter_design.txt:187
threshold_options
static const AVOption threshold_options[]
Definition: vf_threshold.c:40
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:495
ff_framesync_init
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:86
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:463
activate
static int activate(AVFilterContext *ctx)
Definition: vf_threshold.c:239
ThreadData::threshold
AVFrame * threshold
Definition: vf_threshold.c:71
FFFrameSyncIn::before
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
Definition: framesync.h:107
framesync.h
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_threshold.c:154
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:499
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
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:415
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:127
desc
const char * desc
Definition: libsvtav1.c:83
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:69
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_threshold.c:176
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
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
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#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:160
imgutils.h
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:370
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:27
FFFrameSyncIn::after
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
Definition: framesync.h:112
ThreadData::max
AVFrame * max
Definition: vf_threshold.c:73
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:465
h
h
Definition: vp9dsp_template.c:2038
ff_framesync_activate
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
Definition: framesync.c:355
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:441
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:142
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
inputs
static const AVFilterPad inputs[]
Definition: vf_threshold.c:252
min
float min
Definition: vorbis_enc_data.h:429
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_threshold.c:47