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 
62 {
63  static const enum AVPixelFormat pix_fmts[] = {
82  };
83 
85 }
86 
88 {
89  AVFilterContext *ctx = fs->parent;
90  HysteresisContext *s = fs->opaque;
91  AVFilterLink *outlink = ctx->outputs[0];
92  AVFrame *out, *base, *alt;
93  int ret;
94 
95  if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
96  (ret = ff_framesync_get_frame(&s->fs, 1, &alt, 0)) < 0)
97  return ret;
98 
99  if (ctx->is_disabled) {
101  if (!out)
102  return AVERROR(ENOMEM);
103  } else {
104  int p;
105 
106  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
107  if (!out)
108  return AVERROR(ENOMEM);
110 
111  for (p = 0; p < s->nb_planes; p++) {
112  if (!((1 << p) & s->planes)) {
113  av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p],
114  s->width[p], s->height[p]);
115  continue;
116  } else {
117  int y;
118 
119  for (y = 0; y < s->height[p]; y++) {
120  memset(out->data[p] + y * out->linesize[p], 0, s->width[p]);
121  }
122  }
123 
124  s->index = -1;
125  memset(s->map, 0, s->width[0] * s->height[0]);
126  memset(s->xy, 0, s->width[0] * s->height[0] * 4);
127 
128  s->hysteresis(s, base->data[p], alt->data[p],
129  out->data[p],
130  base->linesize[p], alt->linesize[p],
131  out->linesize[p],
132  s->width[p], s->height[p]);
133  }
134  }
135  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
136 
137  return ff_filter_frame(outlink, out);
138 }
139 
140 static int passed(HysteresisContext *s, int x, int y, int w)
141 {
142  return s->map[x + y * w];
143 }
144 
145 static void push(HysteresisContext *s, int x, int y, int w)
146 {
147  s->map[x + y * w] = 0xff;
148  s->xy[++s->index] = (uint16_t)(x) << 16 | (uint16_t)y;
149 }
150 
151 static void pop(HysteresisContext *s, int *x, int *y)
152 {
153  uint32_t val = s->xy[s->index--];
154 
155  *x = val >> 16;
156  *y = val & 0x0000FFFF;
157 }
158 
160 {
161  return s->index < 0;
162 }
163 
164 static void hysteresis8(HysteresisContext *s, const uint8_t *bsrc, const uint8_t *asrc,
165  uint8_t *dst,
166  ptrdiff_t blinesize, ptrdiff_t alinesize,
167  ptrdiff_t dlinesize,
168  int w, int h)
169 {
170  const int t = s->threshold;
171  int x, y;
172 
173  for (y = 0; y < h; y++) {
174  for (x = 0; x < w; x++) {
175  if ((bsrc[x + y * blinesize] > t) && (asrc[x + y * alinesize] > t) && !passed(s, x, y, w)) {
176  int posx, posy;
177 
178  dst[x + y * dlinesize] = asrc[x + y * alinesize];
179 
180  push(s, x, y, w);
181 
182  while (!is_empty(s)) {
183  int x_min, x_max, y_min, y_max, yy, xx;
184 
185  pop(s, &posx, &posy);
186 
187  x_min = posx > 0 ? posx - 1 : 0;
188  x_max = posx < w - 1 ? posx + 1 : posx;
189  y_min = posy > 0 ? posy - 1 : 0;
190  y_max = posy < h - 1 ? posy + 1 : posy;
191 
192  for (yy = y_min; yy <= y_max; yy++) {
193  for (xx = x_min; xx <= x_max; xx++) {
194  if ((asrc[xx + yy * alinesize] > t) && !passed(s, xx, yy, w)) {
195  dst[xx + yy * dlinesize] = asrc[xx + yy * alinesize];
196  push(s, xx, yy, w);
197  }
198  }
199  }
200  }
201  }
202  }
203  }
204 }
205 
206 static void hysteresis16(HysteresisContext *s, const uint8_t *bbsrc, const uint8_t *aasrc,
207  uint8_t *ddst,
208  ptrdiff_t blinesize, ptrdiff_t alinesize,
209  ptrdiff_t dlinesize,
210  int w, int h)
211 {
212  const uint16_t *bsrc = (const uint16_t *)bbsrc;
213  const uint16_t *asrc = (const uint16_t *)aasrc;
214  uint16_t *dst = (uint16_t *)ddst;
215  const int t = s->threshold;
216  int x, y;
217 
218  blinesize /= 2;
219  alinesize /= 2;
220  dlinesize /= 2;
221 
222  for (y = 0; y < h; y++) {
223  for (x = 0; x < w; x++) {
224  if ((bsrc[x + y * blinesize] > t) && (asrc[x + y * alinesize] > t) && !passed(s, x, y, w)) {
225  int posx, posy;
226 
227  dst[x + y * dlinesize] = asrc[x + y * alinesize];
228 
229  push(s, x, y, w);
230 
231  while (!is_empty(s)) {
232  int x_min, x_max, y_min, y_max, yy, xx;
233 
234  pop(s, &posx, &posy);
235 
236  x_min = posx > 0 ? posx - 1 : 0;
237  x_max = posx < w - 1 ? posx + 1 : posx;
238  y_min = posy > 0 ? posy - 1 : 0;
239  y_max = posy < h - 1 ? posy + 1 : posy;
240 
241  for (yy = y_min; yy <= y_max; yy++) {
242  for (xx = x_min; xx <= x_max; xx++) {
243  if ((asrc[xx + yy * alinesize] > t) && !passed(s, xx, yy, w)) {
244  dst[xx + yy * dlinesize] = asrc[xx + yy * alinesize];
245  push(s, xx, yy, w);
246  }
247  }
248  }
249  }
250  }
251  }
252  }
253 }
254 
256 {
257  AVFilterContext *ctx = inlink->dst;
258  HysteresisContext *s = ctx->priv;
260  int vsub, hsub;
261 
262  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
263 
264  hsub = desc->log2_chroma_w;
265  vsub = desc->log2_chroma_h;
266  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
267  s->height[0] = s->height[3] = inlink->h;
268  s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
269  s->width[0] = s->width[3] = inlink->w;
270 
271  s->depth = desc->comp[0].depth;
272 
273  if (desc->comp[0].depth == 8)
274  s->hysteresis = hysteresis8;
275  else
276  s->hysteresis = hysteresis16;
277 
278  s->map = av_calloc(inlink->w, inlink->h * sizeof (*s->map));
279  if (!s->map)
280  return AVERROR(ENOMEM);
281 
282  s->xy = av_calloc(inlink->w, inlink->h * sizeof(*s->xy));
283  if (!s->xy)
284  return AVERROR(ENOMEM);
285 
286  return 0;
287 }
288 
289 static int config_output(AVFilterLink *outlink)
290 {
291  AVFilterContext *ctx = outlink->src;
292  HysteresisContext *s = ctx->priv;
293  AVFilterLink *base = ctx->inputs[0];
294  AVFilterLink *alt = ctx->inputs[1];
295  FFFrameSyncIn *in;
296  int ret;
297 
298  if (base->w != alt->w || base->h != alt->h) {
299  av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
300  "(size %dx%d) do not match the corresponding "
301  "second input link %s parameters (size %dx%d)\n",
302  ctx->input_pads[0].name, base->w, base->h,
303  ctx->input_pads[1].name,
304  alt->w, alt->h);
305  return AVERROR(EINVAL);
306  }
307 
308  outlink->w = base->w;
309  outlink->h = base->h;
310  outlink->sample_aspect_ratio = base->sample_aspect_ratio;
311  outlink->frame_rate = base->frame_rate;
312 
313  if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0)
314  return ret;
315 
316  in = s->fs.in;
317  in[0].time_base = base->time_base;
318  in[1].time_base = alt->time_base;
319  in[0].sync = 1;
320  in[0].before = EXT_STOP;
321  in[0].after = EXT_INFINITY;
322  in[1].sync = 1;
323  in[1].before = EXT_STOP;
324  in[1].after = EXT_INFINITY;
325  s->fs.opaque = s;
326  s->fs.on_event = process_frame;
327 
328  ret = ff_framesync_configure(&s->fs);
329  outlink->time_base = s->fs.time_base;
330 
331  return ret;
332 }
333 
335 {
336  HysteresisContext *s = ctx->priv;
337  return ff_framesync_activate(&s->fs);
338 }
339 
341 {
342  HysteresisContext *s = ctx->priv;
343 
344  ff_framesync_uninit(&s->fs);
345  av_freep(&s->map);
346  av_freep(&s->xy);
347 }
348 
350 
351 static const AVFilterPad hysteresis_inputs[] = {
352  {
353  .name = "base",
354  .type = AVMEDIA_TYPE_VIDEO,
355  .config_props = config_input,
356  },
357  {
358  .name = "alt",
359  .type = AVMEDIA_TYPE_VIDEO,
360  },
361 };
362 
363 static const AVFilterPad hysteresis_outputs[] = {
364  {
365  .name = "default",
366  .type = AVMEDIA_TYPE_VIDEO,
367  .config_props = config_output,
368  },
369 };
370 
372  .name = "hysteresis",
373  .description = NULL_IF_CONFIG_SMALL("Grow first stream into second stream by connecting components."),
374  .preinit = hysteresis_framesync_preinit,
375  .priv_size = sizeof(HysteresisContext),
376  .uninit = uninit,
378  .activate = activate,
381  .priv_class = &hysteresis_class,
383 };
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:98
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:432
HysteresisContext::map
uint8_t * map
Definition: vf_hysteresis.c:45
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:411
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
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_hysteresis.c:289
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:285
out
FILE * out
Definition: movenc.c:54
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1019
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2540
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
bsrc
RGB2YUV_SHIFT RGB2YUV_SHIFT RGB2YUV_SHIFT RGB2YUV_SHIFT RGB2YUV_SHIFT RGB2YUV_SHIFT RGB2YUV_SHIFT RGB2YUV_SHIFT uint8_t const uint8_t const uint8_t * bsrc
Definition: input.c:398
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:424
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:431
w
uint8_t w
Definition: llviddspenc.c:38
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:426
AVOption
AVOption.
Definition: opt.h:247
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:389
base
uint8_t base
Definition: vp3data.h:141
is_empty
static int is_empty(HysteresisContext *s)
Definition: vf_hysteresis.c:159
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:153
FFFrameSync
Frame sync structure.
Definition: framesync.h:146
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:427
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:369
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:317
av_image_copy_plane
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:374
hsub
static void hsub(htype *dst, const htype *src, int bins)
Definition: vf_median.c:74
formats.h
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_hysteresis.c:61
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2580
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:423
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:407
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:405
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:433
FFFrameSyncIn
Input stream structure.
Definition: framesync.h:81
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:387
HysteresisContext::planes
int planes
Definition: vf_hysteresis.c:38
hysteresis_inputs
static const AVFilterPad hysteresis_inputs[]
Definition: vf_hysteresis.c:351
val
static double val(void *priv, double ch)
Definition: aeval.c:76
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:373
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:392
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:248
planes
static const struct @318 planes[]
AV_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:401
activate
static int activate(AVFilterContext *ctx)
Definition: vf_hysteresis.c:334
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:409
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:410
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:402
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
ff_set_common_formats_from_list
int ff_set_common_formats_from_list(AVFilterContext *ctx, const int *fmts)
Equivalent to ff_set_common_formats(ctx, ff_make_format_list(fmts))
Definition: formats.c:703
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:290
HysteresisContext::fs
FFFrameSync fs
Definition: vf_hysteresis.c:36
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:386
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:400
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:372
av_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:152
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:370
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:408
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:537
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:259
push
static void push(HysteresisContext *s, int x, int y, int w)
Definition: vf_hysteresis.c:145
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:87
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:390
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:404
hysteresis_options
static const AVOption hysteresis_options[]
Definition: vf_hysteresis.c:55
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:394
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:396
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:428
FRAMESYNC_DEFINE_CLASS
FRAMESYNC_DEFINE_CLASS(hysteresis, HysteresisContext, fs)
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:406
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:56
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:271
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:388
AVFilter
Filter definition.
Definition: avfilter.h:149
ret
ret
Definition: filter_design.txt:187
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:425
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:393
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:398
FFFrameSyncIn::before
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
Definition: framesync.h:86
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:224
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:206
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:346
hysteresis_outputs
static const AVFilterPad hysteresis_outputs[]
Definition: vf_hysteresis.c:363
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: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
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:340
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:153
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_hysteresis.c:255
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
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
ff_vf_hysteresis
const AVFilter ff_vf_hysteresis
Definition: vf_hysteresis.c:371
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:395
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:399
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:371
passed
static int passed(HysteresisContext *s, int x, int y, int w)
Definition: vf_hysteresis.c:140
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:164
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:397
pop
static void pop(HysteresisContext *s, int *x, int *y)
Definition: vf_hysteresis.c:151