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 "filters.h"
32 #include "framesync.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,
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];
185  FilterLink *ol = ff_filter_link(outlink);
186  FFFrameSyncIn *in;
187  int ret;
188 
189  if (base->w != threshold->w ||
190  base->h != threshold->h ||
191  base->w != min->w ||
192  base->h != min->h ||
193  base->w != max->w ||
194  base->h != max->h) {
195  av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
196  "(size %dx%d) do not match the corresponding "
197  "second input link %s parameters (%dx%d) "
198  "and/or third input link %s parameters (%dx%d) "
199  "and/or fourth input link %s parameters (%dx%d)\n",
200  ctx->input_pads[0].name, base->w, base->h,
201  ctx->input_pads[1].name, threshold->w, threshold->h,
202  ctx->input_pads[2].name, min->w, min->h,
203  ctx->input_pads[3].name, max->w, max->h);
204  return AVERROR(EINVAL);
205  }
206 
207  outlink->w = base->w;
208  outlink->h = base->h;
209  outlink->sample_aspect_ratio = base->sample_aspect_ratio;
210  ol->frame_rate = il->frame_rate;
211 
212  if ((ret = ff_framesync_init(&s->fs, ctx, 4)) < 0)
213  return ret;
214 
215  in = s->fs.in;
216  in[0].time_base = base->time_base;
217  in[1].time_base = threshold->time_base;
218  in[2].time_base = min->time_base;
219  in[3].time_base = max->time_base;
220  in[0].sync = 1;
221  in[0].before = EXT_STOP;
222  in[0].after = EXT_STOP;
223  in[1].sync = 1;
224  in[1].before = EXT_STOP;
225  in[1].after = EXT_STOP;
226  in[2].sync = 1;
227  in[2].before = EXT_STOP;
228  in[2].after = EXT_STOP;
229  in[3].sync = 1;
230  in[3].before = EXT_STOP;
231  in[3].after = EXT_STOP;
232  s->fs.opaque = s;
233  s->fs.on_event = process_frame;
234 
235  ret = ff_framesync_configure(&s->fs);
236  outlink->time_base = s->fs.time_base;
237 
238  return ret;
239 }
240 
242 {
243  ThresholdContext *s = ctx->priv;
244  return ff_framesync_activate(&s->fs);
245 }
246 
248 {
249  ThresholdContext *s = ctx->priv;
250 
251  ff_framesync_uninit(&s->fs);
252 }
253 
254 static const AVFilterPad inputs[] = {
255  {
256  .name = "default",
257  .type = AVMEDIA_TYPE_VIDEO,
258  .config_props = config_input,
259  },
260  {
261  .name = "threshold",
262  .type = AVMEDIA_TYPE_VIDEO,
263  },
264  {
265  .name = "min",
266  .type = AVMEDIA_TYPE_VIDEO,
267  },
268  {
269  .name = "max",
270  .type = AVMEDIA_TYPE_VIDEO,
271  },
272 };
273 
274 static const AVFilterPad outputs[] = {
275  {
276  .name = "default",
277  .type = AVMEDIA_TYPE_VIDEO,
278  .config_props = config_output,
279  },
280 };
281 
283  .name = "threshold",
284  .description = NULL_IF_CONFIG_SMALL("Threshold first video stream using other video streams."),
285  .priv_size = sizeof(ThresholdContext),
286  .priv_class = &threshold_class,
287  .uninit = uninit,
288  .activate = activate,
293  .process_command = ff_filter_process_command,
294 };
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:116
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:546
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:525
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:137
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
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
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: filters.h:242
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:301
out
FILE * out
Definition: movenc.c:55
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:1061
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3170
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:269
ThreadData::max
int max
Definition: vf_ssim.c:231
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:538
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: filters.h:262
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:403
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:545
FLAGS
#define FLAGS
Definition: vf_threshold.c:38
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:540
vf_threshold_init.h
AVOption
AVOption.
Definition: opt.h:429
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:502
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:106
max
#define max(a, b)
Definition: cuda_runtime.h:33
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:205
FFFrameSync
Frame sync structure.
Definition: framesync.h:168
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:526
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:155
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:541
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:482
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:424
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:247
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3210
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:537
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:520
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict, int *got_output)
Handle slice ends.
Definition: mpeg12dec.c:1720
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:518
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:547
FFFrameSyncIn
Input stream structure.
Definition: framesync.h:102
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:500
planes
static const struct @469 planes[]
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(threshold)
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:486
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: filters.h:38
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:505
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:283
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:209
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:514
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:86
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:522
s
#define s(width, name)
Definition: cbs_vp9.c:198
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:523
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:108
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:515
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:60
filters.h
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:544
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:499
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:513
ctx
AVFormatContext * ctx
Definition: movenc.c:49
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:485
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:610
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:73
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: filters.h:263
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:87
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:483
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:521
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:726
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:200
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:85
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:504
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:503
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:517
ff_filter_link
static FilterLink * ff_filter_link(AVFilterLink *link)
Definition: filters.h:197
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:94
ff_vf_threshold
const AVFilter ff_vf_threshold
Definition: vf_threshold.c:282
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:507
ThreadData::min
AVFrame * min
Definition: vf_threshold.c:72
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:509
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:900
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:174
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:542
outputs
static const AVFilterPad outputs[]
Definition: vf_threshold.c:274
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:519
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:840
ThreadData
Used for passing data between threads.
Definition: dsddec.c:71
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:107
AVFilterPad::name
const char * name
Pad name.
Definition: filters.h:44
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:501
slice_start
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
Definition: dec.c:736
AVFilter
Filter definition.
Definition: avfilter.h:201
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:539
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:506
activate
static int activate(AVFilterContext *ctx)
Definition: vf_threshold.c:241
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
ff_filter_execute
int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: avfilter.c:1666
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_threshold.c:154
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:543
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition: opt.h:259
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:78
AVFilterContext
An instance of a filter.
Definition: avfilter.h:457
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
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:152
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:77
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
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:80
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:190
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:448
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:79
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:508
h
h
Definition: vp9dsp_template.c:2070
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:352
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:484
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:173
inputs
static const AVFilterPad inputs[]
Definition: vf_threshold.c:254
min
float min
Definition: vorbis_enc_data.h:429
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_threshold.c:47