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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;
36 
37  int planes;
38  int threshold;
39 
40  int width[4], height[4];
41  int nb_planes;
42  int depth;
44 
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 
64 {
65  static const enum AVPixelFormat pix_fmts[] = {
84  };
85 
86  return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
87 }
88 
90 {
91  AVFilterContext *ctx = fs->parent;
92  HysteresisContext *s = fs->opaque;
93  AVFilterLink *outlink = ctx->outputs[0];
94  AVFrame *out, *base, *alt;
95  int ret;
96 
97  if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
98  (ret = ff_framesync_get_frame(&s->fs, 1, &alt, 0)) < 0)
99  return ret;
100 
101  if (ctx->is_disabled) {
102  out = av_frame_clone(base);
103  if (!out)
104  return AVERROR(ENOMEM);
105  } else {
106  int p;
107 
108  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
109  if (!out)
110  return AVERROR(ENOMEM);
111  av_frame_copy_props(out, base);
112 
113  for (p = 0; p < s->nb_planes; p++) {
114  if (!((1 << p) & s->planes)) {
115  av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p],
116  s->width[p], s->height[p]);
117  continue;
118  } else {
119  int y;
120 
121  for (y = 0; y < s->height[p]; y++) {
122  memset(out->data[p] + y * out->linesize[p], 0, s->width[p]);
123  }
124  }
125 
126  s->index = -1;
127  memset(s->map, 0, s->width[0] * s->height[0]);
128  memset(s->xy, 0, s->width[0] * s->height[0] * 4);
129 
130  s->hysteresis(s, base->data[p], alt->data[p],
131  out->data[p],
132  base->linesize[p], alt->linesize[p],
133  out->linesize[p],
134  s->width[p], s->height[p]);
135  }
136  }
137  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
138 
139  return ff_filter_frame(outlink, out);
140 }
141 
142 static int passed(HysteresisContext *s, int x, int y, int w)
143 {
144  return s->map[x + y * w];
145 }
146 
147 static void push(HysteresisContext *s, int x, int y, int w)
148 {
149  s->map[x + y * w] = 0xff;
150  s->xy[++s->index] = (uint16_t)(x) << 16 | (uint16_t)y;
151 }
152 
153 static void pop(HysteresisContext *s, int *x, int *y)
154 {
155  uint32_t val = s->xy[s->index--];
156 
157  *x = val >> 16;
158  *y = val & 0x0000FFFF;
159 }
160 
162 {
163  return s->index < 0;
164 }
165 
166 static void hysteresis8(HysteresisContext *s, const uint8_t *bsrc, const uint8_t *asrc,
167  uint8_t *dst,
168  ptrdiff_t blinesize, ptrdiff_t alinesize,
169  ptrdiff_t dlinesize,
170  int w, int h)
171 {
172  const int t = s->threshold;
173  int x, y;
174 
175  for (y = 0; y < h; y++) {
176  for (x = 0; x < w; x++) {
177  if ((bsrc[x + y * blinesize] > t) && (asrc[x + y * alinesize] > t) && !passed(s, x, y, w)) {
178  int posx, posy;
179 
180  dst[x + y * dlinesize] = asrc[x + y * alinesize];
181 
182  push(s, x, y, w);
183 
184  while (!is_empty(s)) {
185  int x_min, x_max, y_min, y_max, yy, xx;
186 
187  pop(s, &posx, &posy);
188 
189  x_min = posx > 0 ? posx - 1 : 0;
190  x_max = posx < w - 1 ? posx + 1 : posx;
191  y_min = posy > 0 ? posy - 1 : 0;
192  y_max = posy < h - 1 ? posy + 1 : posy;
193 
194  for (yy = y_min; yy <= y_max; yy++) {
195  for (xx = x_min; xx <= x_max; xx++) {
196  if ((asrc[xx + yy * alinesize] > t) && !passed(s, xx, yy, w)) {
197  dst[xx + yy * dlinesize] = asrc[xx + yy * alinesize];
198  push(s, xx, yy, w);
199  }
200  }
201  }
202  }
203  }
204  }
205  }
206 }
207 
208 static void hysteresis16(HysteresisContext *s, const uint8_t *bbsrc, const uint8_t *aasrc,
209  uint8_t *ddst,
210  ptrdiff_t blinesize, ptrdiff_t alinesize,
211  ptrdiff_t dlinesize,
212  int w, int h)
213 {
214  const uint16_t *bsrc = (const uint16_t *)bbsrc;
215  const uint16_t *asrc = (const uint16_t *)aasrc;
216  uint16_t *dst = (uint16_t *)ddst;
217  const int t = s->threshold;
218  int x, y;
219 
220  blinesize /= 2;
221  alinesize /= 2;
222  dlinesize /= 2;
223 
224  for (y = 0; y < h; y++) {
225  for (x = 0; x < w; x++) {
226  if ((bsrc[x + y * blinesize] > t) && (asrc[x + y * alinesize] > t) && !passed(s, x, y, w)) {
227  int posx, posy;
228 
229  dst[x + y * dlinesize] = asrc[x + y * alinesize];
230 
231  push(s, x, y, w);
232 
233  while (!is_empty(s)) {
234  int x_min, x_max, y_min, y_max, yy, xx;
235 
236  pop(s, &posx, &posy);
237 
238  x_min = posx > 0 ? posx - 1 : 0;
239  x_max = posx < w - 1 ? posx + 1 : posx;
240  y_min = posy > 0 ? posy - 1 : 0;
241  y_max = posy < h - 1 ? posy + 1 : posy;
242 
243  for (yy = y_min; yy <= y_max; yy++) {
244  for (xx = x_min; xx <= x_max; xx++) {
245  if ((asrc[xx + yy * alinesize] > t) && !passed(s, xx, yy, w)) {
246  dst[xx + yy * dlinesize] = asrc[xx + yy * alinesize];
247  push(s, xx, yy, w);
248  }
249  }
250  }
251  }
252  }
253  }
254  }
255 }
256 
257 static int config_input(AVFilterLink *inlink)
258 {
259  AVFilterContext *ctx = inlink->dst;
260  HysteresisContext *s = ctx->priv;
262  int vsub, hsub;
263 
265 
266  hsub = desc->log2_chroma_w;
267  vsub = desc->log2_chroma_h;
268  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
269  s->height[0] = s->height[3] = inlink->h;
270  s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
271  s->width[0] = s->width[3] = inlink->w;
272 
273  s->depth = desc->comp[0].depth;
274 
275  if (desc->comp[0].depth == 8)
276  s->hysteresis = hysteresis8;
277  else
279 
280  s->map = av_calloc(inlink->w, inlink->h * sizeof (*s->map));
281  if (!s->map)
282  return AVERROR(ENOMEM);
283 
284  s->xy = av_calloc(inlink->w, inlink->h * sizeof(*s->xy));
285  if (!s->xy)
286  return AVERROR(ENOMEM);
287 
288  return 0;
289 }
290 
291 static int config_output(AVFilterLink *outlink)
292 {
293  AVFilterContext *ctx = outlink->src;
294  HysteresisContext *s = ctx->priv;
295  AVFilterLink *base = ctx->inputs[0];
296  AVFilterLink *alt = ctx->inputs[1];
297  FFFrameSyncIn *in;
298  int ret;
299 
300  if (base->format != alt->format) {
301  av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
302  return AVERROR(EINVAL);
303  }
304  if (base->w != alt->w ||
305  base->h != alt->h ||
308  av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
309  "(size %dx%d, SAR %d:%d) do not match the corresponding "
310  "second input link %s parameters (%dx%d, SAR %d:%d)\n",
311  ctx->input_pads[0].name, base->w, base->h,
312  base->sample_aspect_ratio.num,
313  base->sample_aspect_ratio.den,
314  ctx->input_pads[1].name,
315  alt->w, alt->h,
317  alt->sample_aspect_ratio.den);
318  return AVERROR(EINVAL);
319  }
320 
321  outlink->w = base->w;
322  outlink->h = base->h;
323  outlink->time_base = base->time_base;
324  outlink->sample_aspect_ratio = base->sample_aspect_ratio;
325  outlink->frame_rate = base->frame_rate;
326 
327  if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0)
328  return ret;
329 
330  in = s->fs.in;
331  in[0].time_base = base->time_base;
332  in[1].time_base = alt->time_base;
333  in[0].sync = 1;
334  in[0].before = EXT_STOP;
335  in[0].after = EXT_INFINITY;
336  in[1].sync = 1;
337  in[1].before = EXT_STOP;
338  in[1].after = EXT_INFINITY;
339  s->fs.opaque = s;
341 
342  return ff_framesync_configure(&s->fs);
343 }
344 
345 static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
346 {
347  HysteresisContext *s = inlink->dst->priv;
348  return ff_framesync_filter_frame(&s->fs, inlink, buf);
349 }
350 
351 static int request_frame(AVFilterLink *outlink)
352 {
353  HysteresisContext *s = outlink->src->priv;
354  return ff_framesync_request_frame(&s->fs, outlink);
355 }
356 
358 {
359  HysteresisContext *s = ctx->priv;
360 
361  ff_framesync_uninit(&s->fs);
362  av_freep(&s->map);
363  av_freep(&s->xy);
364 }
365 
366 static const AVFilterPad hysteresis_inputs[] = {
367  {
368  .name = "base",
369  .type = AVMEDIA_TYPE_VIDEO,
370  .filter_frame = filter_frame,
371  .config_props = config_input,
372  },
373  {
374  .name = "alt",
375  .type = AVMEDIA_TYPE_VIDEO,
376  .filter_frame = filter_frame,
377  },
378  { NULL }
379 };
380 
381 static const AVFilterPad hysteresis_outputs[] = {
382  {
383  .name = "default",
384  .type = AVMEDIA_TYPE_VIDEO,
385  .config_props = config_output,
386  .request_frame = request_frame,
387  },
388  { NULL }
389 };
390 
392  .name = "hysteresis",
393  .description = NULL_IF_CONFIG_SMALL("Grow first stream into second stream by connecting components."),
394  .priv_size = sizeof(HysteresisContext),
395  .uninit = uninit,
397  .inputs = hysteresis_inputs,
398  .outputs = hysteresis_outputs,
399  .priv_class = &hysteresis_class,
401 };
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:771
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:388
const char * s
Definition: avisynth_c.h:768
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:382
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2333
This structure describes decoded (raw) audio or video data.
Definition: frame.h:187
AVOption.
Definition: opt.h:246
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:384
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:361
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:385
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
misc image utilities
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2373
Main libavfilter public API header.
#define OFFSET(x)
Definition: vf_hysteresis.c:31
const char * desc
Definition: nvenc.c:60
int(* on_event)(struct FFFrameSync *fs)
Callback called when a frame event is ready.
Definition: framesync.h:175
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
int num
Numerator.
Definition: rational.h:59
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:367
static int process_frame(FFFrameSync *fs)
Definition: vf_hysteresis.c:89
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:355
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:80
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:92
int is_disabled
the enabled state from the last expression evaluation
Definition: avfilter.h:370
int64_t pts
Timestamp of the current event.
Definition: framesync.h:170
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
Definition: framesync.h:93
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:230
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
FFFrameSync fs
Definition: vf_hysteresis.c:43
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)
const char * name
Pad name.
Definition: internal.h:60
AVFILTER_DEFINE_CLASS(hysteresis)
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:331
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1125
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:102
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
static int request_frame(AVFilterLink *outlink)
AVOptions.
void * parent
Definition: framesync.h:155
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:271
FFFrameSyncIn * in
Pointer to array of inputs.
Definition: framesync.h:206
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:381
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:366
static int passed(HysteresisContext *s, int x, int y, int w)
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
static int flags
Definition: log.c:57
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:364
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
Definition: framesync.h:98
Input stream structure.
Definition: framesync.h:83
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:356
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:387
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:54
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
int ff_framesync_filter_frame(FFFrameSync *fs, AVFilterLink *inlink, AVFrame *in)
Accept a frame on a filter input.
Definition: framesync.c:303
AVFilterPad * input_pads
array of input pads
Definition: avfilter.h:330
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:188
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:269
Frame sync structure.
Definition: framesync.h:153
#define AVERROR(e)
Definition: error.h:43
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
void * priv
private data for use by the filter
Definition: avfilter.h:338
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:389
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:372
AVRational time_base
Time base for the incoming frames.
Definition: framesync.h:103
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:354
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:373
static int query_formats(AVFilterContext *ctx)
Definition: vf_hysteresis.c:63
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:349
AVFilter ff_vf_hysteresis
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:370
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:335
#define FLAGS
Definition: vf_hysteresis.c:32
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
int ff_framesync_request_frame(FFFrameSync *fs, AVFilterLink *outlink)
Request a frame on the filter output.
Definition: framesync.c:317
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
AVFormatContext * ctx
Definition: movenc.c:48
AVRational time_base
Time base for the output events.
Definition: framesync.h:165
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:386
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
void * opaque
Opaque pointer, not used by the API.
Definition: framesync.h:180
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:350
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:369
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:485
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
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:362
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:359
Extend the frame to infinity.
Definition: framesync.h:77
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:218
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:189
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
static int config_output(AVFilterLink *outlink)
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
static int is_empty(HysteresisContext *s)
void * buf
Definition: avisynth_c.h:690
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)
int ff_framesync_init(FFFrameSync *fs, void *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:52
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:351
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events...
Definition: framesync.h:146
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
static const AVOption hysteresis_options[]
Definition: vf_hysteresis.c:55
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:357
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:348
static void pop(HysteresisContext *s, int *x, int *y)
#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:133
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:335
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:360
static av_cold void uninit(AVFilterContext *ctx)
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:368
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:352
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:358
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:201
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
Y , 8bpp.
Definition: pixfmt.h:70
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:229
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:383
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
int den
Denominator.
Definition: rational.h:60
Completely stop all streams with this one.
Definition: framesync.h:67
static void push(HysteresisContext *s, int x, int y, int w)
static const AVFilterPad hysteresis_outputs[]
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:272
An instance of a filter.
Definition: avfilter.h:323
static int config_input(AVFilterLink *inlink)
FILE * out
Definition: movenc.c:54
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
static const AVFilterPad hysteresis_inputs[]
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:337
internal API functions
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
Definition: framesync.c:232
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:363
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:596
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58