FFmpeg
vf_hysteresis.c
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1 /*
2  * Copyright (c) 2013 Oka Motofumi (chikuzen.mo at gmail dot com)
3  * Copyright (c) 2016 Paul B Mahol
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavutil/imgutils.h"
23 #include "libavutil/pixdesc.h"
24 #include "libavutil/opt.h"
25 #include "avfilter.h"
26 #include "formats.h"
27 #include "internal.h"
28 #include "video.h"
29 #include "framesync.h"
30 
31 #define OFFSET(x) offsetof(HysteresisContext, x)
32 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
33 
34 typedef struct HysteresisContext {
35  const AVClass *class;
37 
38  int planes;
39  int threshold;
40 
41  int width[4], height[4];
42  int nb_planes;
43  int depth;
44 
45  uint8_t *map;
46  uint32_t *xy;
47  int index;
48 
49  void (*hysteresis)(struct HysteresisContext *s, const uint8_t *bsrc, const uint8_t *osrc, uint8_t *dst,
50  ptrdiff_t blinesize, ptrdiff_t olinesize,
51  ptrdiff_t destlinesize,
52  int w, int h);
54 
55 static const AVOption hysteresis_options[] = {
56  { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
57  { "threshold", "set threshold", OFFSET(threshold), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
58  { NULL }
59 };
60 
61 static const enum AVPixelFormat pix_fmts[] = {
80 };
81 
83 {
84  AVFilterContext *ctx = fs->parent;
85  HysteresisContext *s = fs->opaque;
86  AVFilterLink *outlink = ctx->outputs[0];
87  AVFrame *out, *base, *alt;
88  int ret;
89 
90  if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
91  (ret = ff_framesync_get_frame(&s->fs, 1, &alt, 0)) < 0)
92  return ret;
93 
94  if (ctx->is_disabled) {
96  if (!out)
97  return AVERROR(ENOMEM);
98  } else {
99  int p;
100 
101  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
102  if (!out)
103  return AVERROR(ENOMEM);
105 
106  for (p = 0; p < s->nb_planes; p++) {
107  if (!((1 << p) & s->planes)) {
108  av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p],
109  s->width[p], s->height[p]);
110  continue;
111  } else {
112  int y;
113 
114  for (y = 0; y < s->height[p]; y++) {
115  memset(out->data[p] + y * out->linesize[p], 0, s->width[p]);
116  }
117  }
118 
119  s->index = -1;
120  memset(s->map, 0, s->width[0] * s->height[0]);
121  memset(s->xy, 0, s->width[0] * s->height[0] * 4);
122 
123  s->hysteresis(s, base->data[p], alt->data[p],
124  out->data[p],
125  base->linesize[p], alt->linesize[p],
126  out->linesize[p],
127  s->width[p], s->height[p]);
128  }
129  }
130  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
131 
132  return ff_filter_frame(outlink, out);
133 }
134 
135 static int passed(HysteresisContext *s, int x, int y, int w)
136 {
137  return s->map[x + y * w];
138 }
139 
140 static void push(HysteresisContext *s, int x, int y, int w)
141 {
142  s->map[x + y * w] = 0xff;
143  s->xy[++s->index] = (uint16_t)(x) << 16 | (uint16_t)y;
144 }
145 
146 static void pop(HysteresisContext *s, int *x, int *y)
147 {
148  uint32_t val = s->xy[s->index--];
149 
150  *x = val >> 16;
151  *y = val & 0x0000FFFF;
152 }
153 
155 {
156  return s->index < 0;
157 }
158 
159 static void hysteresis8(HysteresisContext *s, const uint8_t *bsrc, const uint8_t *asrc,
160  uint8_t *dst,
161  ptrdiff_t blinesize, ptrdiff_t alinesize,
162  ptrdiff_t dlinesize,
163  int w, int h)
164 {
165  const int t = s->threshold;
166  int x, y;
167 
168  for (y = 0; y < h; y++) {
169  for (x = 0; x < w; x++) {
170  if ((bsrc[x + y * blinesize] > t) && (asrc[x + y * alinesize] > t) && !passed(s, x, y, w)) {
171  int posx, posy;
172 
173  dst[x + y * dlinesize] = asrc[x + y * alinesize];
174 
175  push(s, x, y, w);
176 
177  while (!is_empty(s)) {
178  int x_min, x_max, y_min, y_max, yy, xx;
179 
180  pop(s, &posx, &posy);
181 
182  x_min = posx > 0 ? posx - 1 : 0;
183  x_max = posx < w - 1 ? posx + 1 : posx;
184  y_min = posy > 0 ? posy - 1 : 0;
185  y_max = posy < h - 1 ? posy + 1 : posy;
186 
187  for (yy = y_min; yy <= y_max; yy++) {
188  for (xx = x_min; xx <= x_max; xx++) {
189  if ((asrc[xx + yy * alinesize] > t) && !passed(s, xx, yy, w)) {
190  dst[xx + yy * dlinesize] = asrc[xx + yy * alinesize];
191  push(s, xx, yy, w);
192  }
193  }
194  }
195  }
196  }
197  }
198  }
199 }
200 
201 static void hysteresis16(HysteresisContext *s, const uint8_t *bbsrc, const uint8_t *aasrc,
202  uint8_t *ddst,
203  ptrdiff_t blinesize, ptrdiff_t alinesize,
204  ptrdiff_t dlinesize,
205  int w, int h)
206 {
207  const uint16_t *bsrc = (const uint16_t *)bbsrc;
208  const uint16_t *asrc = (const uint16_t *)aasrc;
209  uint16_t *dst = (uint16_t *)ddst;
210  const int t = s->threshold;
211  int x, y;
212 
213  blinesize /= 2;
214  alinesize /= 2;
215  dlinesize /= 2;
216 
217  for (y = 0; y < h; y++) {
218  for (x = 0; x < w; x++) {
219  if ((bsrc[x + y * blinesize] > t) && (asrc[x + y * alinesize] > t) && !passed(s, x, y, w)) {
220  int posx, posy;
221 
222  dst[x + y * dlinesize] = asrc[x + y * alinesize];
223 
224  push(s, x, y, w);
225 
226  while (!is_empty(s)) {
227  int x_min, x_max, y_min, y_max, yy, xx;
228 
229  pop(s, &posx, &posy);
230 
231  x_min = posx > 0 ? posx - 1 : 0;
232  x_max = posx < w - 1 ? posx + 1 : posx;
233  y_min = posy > 0 ? posy - 1 : 0;
234  y_max = posy < h - 1 ? posy + 1 : posy;
235 
236  for (yy = y_min; yy <= y_max; yy++) {
237  for (xx = x_min; xx <= x_max; xx++) {
238  if ((asrc[xx + yy * alinesize] > t) && !passed(s, xx, yy, w)) {
239  dst[xx + yy * dlinesize] = asrc[xx + yy * alinesize];
240  push(s, xx, yy, w);
241  }
242  }
243  }
244  }
245  }
246  }
247  }
248 }
249 
251 {
252  AVFilterContext *ctx = inlink->dst;
253  HysteresisContext *s = ctx->priv;
255  int vsub, hsub;
256 
257  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
258 
259  hsub = desc->log2_chroma_w;
260  vsub = desc->log2_chroma_h;
261  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
262  s->height[0] = s->height[3] = inlink->h;
263  s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
264  s->width[0] = s->width[3] = inlink->w;
265 
266  s->depth = desc->comp[0].depth;
267 
268  if (desc->comp[0].depth == 8)
269  s->hysteresis = hysteresis8;
270  else
271  s->hysteresis = hysteresis16;
272 
273  s->map = av_calloc(inlink->w, inlink->h * sizeof (*s->map));
274  if (!s->map)
275  return AVERROR(ENOMEM);
276 
277  s->xy = av_calloc(inlink->w, inlink->h * sizeof(*s->xy));
278  if (!s->xy)
279  return AVERROR(ENOMEM);
280 
281  return 0;
282 }
283 
284 static int config_output(AVFilterLink *outlink)
285 {
286  AVFilterContext *ctx = outlink->src;
287  HysteresisContext *s = ctx->priv;
288  AVFilterLink *base = ctx->inputs[0];
289  AVFilterLink *alt = ctx->inputs[1];
290  FFFrameSyncIn *in;
291  int ret;
292 
293  if (base->w != alt->w || base->h != alt->h) {
294  av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
295  "(size %dx%d) do not match the corresponding "
296  "second input link %s parameters (size %dx%d)\n",
297  ctx->input_pads[0].name, base->w, base->h,
298  ctx->input_pads[1].name,
299  alt->w, alt->h);
300  return AVERROR(EINVAL);
301  }
302 
303  outlink->w = base->w;
304  outlink->h = base->h;
305  outlink->sample_aspect_ratio = base->sample_aspect_ratio;
306  outlink->frame_rate = base->frame_rate;
307 
308  if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0)
309  return ret;
310 
311  in = s->fs.in;
312  in[0].time_base = base->time_base;
313  in[1].time_base = alt->time_base;
314  in[0].sync = 1;
315  in[0].before = EXT_STOP;
316  in[0].after = EXT_INFINITY;
317  in[1].sync = 1;
318  in[1].before = EXT_STOP;
319  in[1].after = EXT_INFINITY;
320  s->fs.opaque = s;
321  s->fs.on_event = process_frame;
322 
323  ret = ff_framesync_configure(&s->fs);
324  outlink->time_base = s->fs.time_base;
325 
326  return ret;
327 }
328 
330 {
331  HysteresisContext *s = ctx->priv;
332  return ff_framesync_activate(&s->fs);
333 }
334 
336 {
337  HysteresisContext *s = ctx->priv;
338 
339  ff_framesync_uninit(&s->fs);
340  av_freep(&s->map);
341  av_freep(&s->xy);
342 }
343 
345 
346 static const AVFilterPad hysteresis_inputs[] = {
347  {
348  .name = "base",
349  .type = AVMEDIA_TYPE_VIDEO,
350  .config_props = config_input,
351  },
352  {
353  .name = "alt",
354  .type = AVMEDIA_TYPE_VIDEO,
355  },
356 };
357 
358 static const AVFilterPad hysteresis_outputs[] = {
359  {
360  .name = "default",
361  .type = AVMEDIA_TYPE_VIDEO,
362  .config_props = config_output,
363  },
364 };
365 
367  .name = "hysteresis",
368  .description = NULL_IF_CONFIG_SMALL("Grow first stream into second stream by connecting components."),
369  .preinit = hysteresis_framesync_preinit,
370  .priv_size = sizeof(HysteresisContext),
371  .uninit = uninit,
372  .activate = activate,
376  .priv_class = &hysteresis_class,
378 };
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:454
HysteresisContext::map
uint8_t * map
Definition: vf_hysteresis.c:45
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:433
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
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_hysteresis.c:284
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_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:304
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:999
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2703
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:446
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:453
w
uint8_t w
Definition: llviddspenc.c:38
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:448
AVOption
AVOption.
Definition: opt.h:251
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:411
base
uint8_t base
Definition: vp3data.h:141
is_empty
static int is_empty(HysteresisContext *s)
Definition: vf_hysteresis.c:154
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
HysteresisContext::height
int height[4]
Definition: vf_hysteresis.c:41
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:175
FFFrameSync
Frame sync structure.
Definition: framesync.h:168
EXT_INFINITY
@ EXT_INFINITY
Extend the frame to infinity.
Definition: framesync.h:75
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:449
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:391
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
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_hysteresis.c:61
formats.h
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2743
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:445
EXT_STOP
@ EXT_STOP
Completely stop all streams with this one.
Definition: framesync.h:65
HysteresisContext
Definition: vf_hysteresis.c:34
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:429
HysteresisContext::width
int width[4]
Definition: vf_hysteresis.c:41
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:427
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:455
FFFrameSyncIn
Input stream structure.
Definition: framesync.h:102
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:409
HysteresisContext::planes
int planes
Definition: vf_hysteresis.c:38
hysteresis_inputs
static const AVFilterPad hysteresis_inputs[]
Definition: vf_hysteresis.c:346
val
static double val(void *priv, double ch)
Definition: aeval.c:77
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:395
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:414
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:423
activate
static int activate(AVFilterContext *ctx)
Definition: vf_hysteresis.c:329
HysteresisContext::nb_planes
int nb_planes
Definition: vf_hysteresis.c:42
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:431
s
#define s(width, name)
Definition: cbs_vp9.c:256
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:432
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:424
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:50
HysteresisContext::fs
FFFrameSync fs
Definition: vf_hysteresis.c:36
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:408
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:422
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:394
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
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
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:392
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:430
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
HysteresisContext::index
int index
Definition: vf_hysteresis.c:47
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
push
static void push(HysteresisContext *s, int x, int y, int w)
Definition: vf_hysteresis.c:140
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
process_frame
static int process_frame(FFFrameSync *fs)
Definition: vf_hysteresis.c:82
HysteresisContext::hysteresis
void(* hysteresis)(struct HysteresisContext *s, const uint8_t *bsrc, const uint8_t *osrc, uint8_t *dst, ptrdiff_t blinesize, ptrdiff_t olinesize, ptrdiff_t destlinesize, int w, int h)
Definition: vf_hysteresis.c:49
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:412
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:426
hysteresis_options
static const AVOption hysteresis_options[]
Definition: vf_hysteresis.c:55
planes
static const struct @335 planes[]
HysteresisContext::threshold
int threshold
Definition: vf_hysteresis.c:39
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
FLAGS
#define FLAGS
Definition: vf_hysteresis.c:32
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:416
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:418
HysteresisContext::depth
int depth
Definition: vf_hysteresis.c:43
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:450
FRAMESYNC_DEFINE_CLASS
FRAMESYNC_DEFINE_CLASS(hysteresis, HysteresisContext, fs)
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:428
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
HysteresisContext::xy
uint32_t * xy
Definition: vf_hysteresis.c:46
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:272
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:410
AVFilter
Filter definition.
Definition: avfilter.h:171
ret
ret
Definition: filter_design.txt:187
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:447
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:415
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:420
FFFrameSyncIn::before
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
Definition: framesync.h:107
framesync.h
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
hysteresis16
static void hysteresis16(HysteresisContext *s, const uint8_t *bbsrc, const uint8_t *aasrc, uint8_t *ddst, ptrdiff_t blinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h)
Definition: vf_hysteresis.c:201
OFFSET
#define OFFSET(x)
Definition: vf_hysteresis.c:31
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:408
hysteresis_outputs
static const AVFilterPad hysteresis_outputs[]
Definition: vf_hysteresis.c:358
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
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
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_hysteresis.c:335
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_hysteresis.c:250
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
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
ff_vf_hysteresis
const AVFilter ff_vf_hysteresis
Definition: vf_hysteresis.c:366
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:417
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:421
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:393
passed
static int passed(HysteresisContext *s, int x, int y, int w)
Definition: vf_hysteresis.c:135
hysteresis8
static void hysteresis8(HysteresisContext *s, const uint8_t *bsrc, const uint8_t *asrc, uint8_t *dst, ptrdiff_t blinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h)
Definition: vf_hysteresis.c:159
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:419
pop
static void pop(HysteresisContext *s, int *x, int *y)
Definition: vf_hysteresis.c:146