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 
36 #define OFFSET(x) offsetof(ThresholdContext, x)
37 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
38 
39 static const AVOption threshold_options[] = {
40  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, FLAGS},
41  { NULL }
42 };
43 
44 AVFILTER_DEFINE_CLASS(threshold);
45 
46 static const enum AVPixelFormat pix_fmts[] = {
66 };
67 
68 typedef struct ThreadData {
69  AVFrame *in;
73  AVFrame *out;
74 } ThreadData;
75 
76 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
77 {
78  ThresholdContext *s = ctx->priv;
79  ThreadData *td = arg;
80  AVFrame *min = td->min;
81  AVFrame *max = td->max;
82  AVFrame *threshold = td->threshold;
83  AVFrame *in = td->in;
84  AVFrame *out = td->out;
85 
86  for (int p = 0; p < s->nb_planes; p++) {
87  const int h = s->height[p];
88  const int slice_start = (h * jobnr) / nb_jobs;
89  const int slice_end = (h * (jobnr+1)) / nb_jobs;
90 
91  if (!(s->planes & (1 << p))) {
92  av_image_copy_plane(out->data[p] + slice_start * out->linesize[p],
93  out->linesize[p],
94  in->data[p] + slice_start * in->linesize[p],
95  in->linesize[p],
96  s->width[p] * s->bpc,
97  slice_end - slice_start);
98  continue;
99  }
100  s->threshold(in->data[p] + slice_start * in->linesize[p],
101  threshold->data[p] + slice_start * threshold->linesize[p],
102  min->data[p] + slice_start * min->linesize[p],
103  max->data[p] + slice_start * max->linesize[p],
104  out->data[p] + slice_start * out->linesize[p],
105  in->linesize[p], threshold->linesize[p],
106  min->linesize[p], max->linesize[p],
107  out->linesize[p],
108  s->width[p], slice_end - slice_start);
109  }
110 
111  return 0;
112 }
113 
115 {
116  AVFilterContext *ctx = fs->parent;
117  ThresholdContext *s = fs->opaque;
118  AVFilterLink *outlink = ctx->outputs[0];
119  AVFrame *out, *in, *threshold, *min, *max;
120  ThreadData td;
121  int ret;
122 
123  if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 0)) < 0 ||
124  (ret = ff_framesync_get_frame(&s->fs, 1, &threshold, 0)) < 0 ||
125  (ret = ff_framesync_get_frame(&s->fs, 2, &min, 0)) < 0 ||
126  (ret = ff_framesync_get_frame(&s->fs, 3, &max, 0)) < 0)
127  return ret;
128 
129  if (ctx->is_disabled) {
130  out = av_frame_clone(in);
131  if (!out)
132  return AVERROR(ENOMEM);
133  } else {
134  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
135  if (!out)
136  return AVERROR(ENOMEM);
138 
139  td.out = out;
140  td.in = in;
141  td.threshold = threshold;
142  td.min = min;
143  td.max = max;
145  FFMIN(s->height[2], ff_filter_get_nb_threads(ctx)));
146  }
147 
148  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
149 
150  return ff_filter_frame(outlink, out);
151 }
152 
153 static void threshold8(const uint8_t *in, const uint8_t *threshold,
154  const uint8_t *min, const uint8_t *max,
155  uint8_t *out,
156  ptrdiff_t ilinesize, ptrdiff_t tlinesize,
157  ptrdiff_t flinesize, ptrdiff_t slinesize,
158  ptrdiff_t olinesize,
159  int w, int h)
160 {
161  int x, y;
162 
163  for (y = 0; y < h; y++) {
164  for (x = 0; x < w; x++) {
165  out[x] = in[x] < threshold[x] ? min[x] : max[x];
166  }
167 
168  in += ilinesize;
169  threshold += tlinesize;
170  min += flinesize;
171  max += slinesize;
172  out += olinesize;
173  }
174 }
175 
176 static void threshold16(const uint8_t *iin, const uint8_t *tthreshold,
177  const uint8_t *ffirst, const uint8_t *ssecond,
178  uint8_t *oout,
179  ptrdiff_t ilinesize, ptrdiff_t tlinesize,
180  ptrdiff_t flinesize, ptrdiff_t slinesize,
181  ptrdiff_t olinesize,
182  int w, int h)
183 {
184  const uint16_t *in = (const uint16_t *)iin;
185  const uint16_t *threshold = (const uint16_t *)tthreshold;
186  const uint16_t *min = (const uint16_t *)ffirst;
187  const uint16_t *max = (const uint16_t *)ssecond;
188  uint16_t *out = (uint16_t *)oout;
189  int x, y;
190 
191  for (y = 0; y < h; y++) {
192  for (x = 0; x < w; x++) {
193  out[x] = in[x] < threshold[x] ? min[x] : max[x];
194  }
195 
196  in += ilinesize / 2;
197  threshold += tlinesize / 2;
198  min += flinesize / 2;
199  max += slinesize / 2;
200  out += olinesize / 2;
201  }
202 }
203 
205 {
206  AVFilterContext *ctx = inlink->dst;
207  ThresholdContext *s = ctx->priv;
209  int vsub, hsub;
210 
211  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
212 
213  hsub = desc->log2_chroma_w;
214  vsub = desc->log2_chroma_h;
215  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
216  s->height[0] = s->height[3] = inlink->h;
217  s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
218  s->width[0] = s->width[3] = inlink->w;
219  s->depth = desc->comp[0].depth;
220 
222 
223  return 0;
224 }
225 
227 {
228  if (s->depth == 8) {
229  s->threshold = threshold8;
230  s->bpc = 1;
231  } else {
232  s->threshold = threshold16;
233  s->bpc = 2;
234  }
235 
236  if (ARCH_X86)
238 }
239 
240 static int config_output(AVFilterLink *outlink)
241 {
242  AVFilterContext *ctx = outlink->src;
243  ThresholdContext *s = ctx->priv;
244  AVFilterLink *base = ctx->inputs[0];
245  AVFilterLink *threshold = ctx->inputs[1];
246  AVFilterLink *min = ctx->inputs[2];
247  AVFilterLink *max = ctx->inputs[3];
248  FFFrameSyncIn *in;
249  int ret;
250 
251  if (base->w != threshold->w ||
252  base->h != threshold->h ||
253  base->w != min->w ||
254  base->h != min->h ||
255  base->w != max->w ||
256  base->h != max->h) {
257  av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
258  "(size %dx%d) do not match the corresponding "
259  "second input link %s parameters (%dx%d) "
260  "and/or third input link %s parameters (%dx%d) "
261  "and/or fourth input link %s parameters (%dx%d)\n",
262  ctx->input_pads[0].name, base->w, base->h,
263  ctx->input_pads[1].name, threshold->w, threshold->h,
264  ctx->input_pads[2].name, min->w, min->h,
265  ctx->input_pads[3].name, max->w, max->h);
266  return AVERROR(EINVAL);
267  }
268 
269  outlink->w = base->w;
270  outlink->h = base->h;
271  outlink->sample_aspect_ratio = base->sample_aspect_ratio;
272  outlink->frame_rate = base->frame_rate;
273 
274  if ((ret = ff_framesync_init(&s->fs, ctx, 4)) < 0)
275  return ret;
276 
277  in = s->fs.in;
278  in[0].time_base = base->time_base;
279  in[1].time_base = threshold->time_base;
280  in[2].time_base = min->time_base;
281  in[3].time_base = max->time_base;
282  in[0].sync = 1;
283  in[0].before = EXT_STOP;
284  in[0].after = EXT_STOP;
285  in[1].sync = 1;
286  in[1].before = EXT_STOP;
287  in[1].after = EXT_STOP;
288  in[2].sync = 1;
289  in[2].before = EXT_STOP;
290  in[2].after = EXT_STOP;
291  in[3].sync = 1;
292  in[3].before = EXT_STOP;
293  in[3].after = EXT_STOP;
294  s->fs.opaque = s;
295  s->fs.on_event = process_frame;
296 
297  ret = ff_framesync_configure(&s->fs);
298  outlink->time_base = s->fs.time_base;
299 
300  return ret;
301 }
302 
304 {
305  ThresholdContext *s = ctx->priv;
306  return ff_framesync_activate(&s->fs);
307 }
308 
310 {
311  ThresholdContext *s = ctx->priv;
312 
313  ff_framesync_uninit(&s->fs);
314 }
315 
316 static const AVFilterPad inputs[] = {
317  {
318  .name = "default",
319  .type = AVMEDIA_TYPE_VIDEO,
320  .config_props = config_input,
321  },
322  {
323  .name = "threshold",
324  .type = AVMEDIA_TYPE_VIDEO,
325  },
326  {
327  .name = "min",
328  .type = AVMEDIA_TYPE_VIDEO,
329  },
330  {
331  .name = "max",
332  .type = AVMEDIA_TYPE_VIDEO,
333  },
334 };
335 
336 static const AVFilterPad outputs[] = {
337  {
338  .name = "default",
339  .type = AVMEDIA_TYPE_VIDEO,
340  .config_props = config_output,
341  },
342 };
343 
345  .name = "threshold",
346  .description = NULL_IF_CONFIG_SMALL("Threshold first video stream using other video streams."),
347  .priv_size = sizeof(ThresholdContext),
348  .priv_class = &threshold_class,
349  .uninit = uninit,
350  .activate = activate,
355  .process_command = ff_filter_process_command,
356 };
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:434
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:413
FFFrameSyncIn::time_base
AVRational time_base
Time base for the incoming frames.
Definition: framesync.h:96
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:119
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:114
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:76
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:285
out
FILE * out
Definition: movenc.c:54
ff_threshold_init
void ff_threshold_init(ThresholdContext *s)
Definition: vf_threshold.c:226
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:1018
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2564
OFFSET
#define OFFSET(x)
Definition: vf_threshold.c:36
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:248
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:171
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:426
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:433
w
uint8_t w
Definition: llviddspenc.c:38
FLAGS
#define FLAGS
Definition: vf_threshold.c:37
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:428
AVOption
AVOption.
Definition: opt.h:247
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:391
base
uint8_t base
Definition: vp3data.h:141
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:153
FFFrameSync
Frame sync structure.
Definition: framesync.h:146
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:473
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:429
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:371
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
planes
static const struct @320 planes[]
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_threshold.c:309
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2604
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:425
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:409
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:407
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:435
FFFrameSyncIn
Input stream structure.
Definition: framesync.h:81
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:389
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(threshold)
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:375
FFFrameSyncIn::sync
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events.
Definition: framesync.h:139
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:394
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
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:403
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:411
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:412
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:404
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2041
ff_threshold_init_x86
void ff_threshold_init_x86(ThresholdContext *s)
Definition: vf_threshold_init.c:40
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:432
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:388
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:402
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:374
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:424
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:141
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
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:191
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:372
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:410
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
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:259
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:393
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:392
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:406
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
ff_vf_threshold
const AVFilter ff_vf_threshold
Definition: vf_threshold.c:344
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:396
ThreadData::min
AVFrame * min
Definition: vf_threshold.c:71
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:398
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:882
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:430
internal.h
outputs
static const AVFilterPad outputs[]
Definition: vf_threshold.c:336
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:408
threshold8
static void threshold8(const uint8_t *in, const uint8_t *threshold, const uint8_t *min, const uint8_t *max, uint8_t *out, ptrdiff_t ilinesize, ptrdiff_t tlinesize, ptrdiff_t flinesize, ptrdiff_t slinesize, ptrdiff_t olinesize, int w, int h)
Definition: vf_threshold.c:153
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:803
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_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:390
AVFilter
Filter definition.
Definition: avfilter.h:149
ret
ret
Definition: filter_design.txt:187
threshold_options
static const AVOption threshold_options[]
Definition: vf_threshold.c:39
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:427
ff_framesync_init
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:79
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:395
activate
static int activate(AVFilterContext *ctx)
Definition: vf_threshold.c:303
ThreadData::threshold
AVFrame * threshold
Definition: vf_threshold.c:70
FFFrameSyncIn::before
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
Definition: framesync.h:86
framesync.h
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_threshold.c:204
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:431
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:386
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:154
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:240
threshold16
static void threshold16(const uint8_t *iin, const uint8_t *tthreshold, const uint8_t *ffirst, const uint8_t *ssecond, uint8_t *oout, ptrdiff_t ilinesize, ptrdiff_t tlinesize, ptrdiff_t flinesize, ptrdiff_t slinesize, ptrdiff_t olinesize, int w, int h)
Definition: vf_threshold.c:176
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:192
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:138
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_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
FFFrameSyncIn::after
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
Definition: framesync.h:91
ThreadData::max
AVFrame * max
Definition: vf_threshold.c:72
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:397
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:336
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:373
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
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:316
min
float min
Definition: vorbis_enc_data.h:429
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_threshold.c:46