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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
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 
47 {
48  static const enum AVPixelFormat pix_fmts[] = {
66  };
67 
68  return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
69 }
70 
71 static int process_frame(FFFrameSync *fs)
72 {
73  AVFilterContext *ctx = fs->parent;
74  ThresholdContext *s = fs->opaque;
75  AVFilterLink *outlink = ctx->outputs[0];
76  AVFrame *out, *in, *threshold, *min, *max;
77  int ret;
78 
79  if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 0)) < 0 ||
80  (ret = ff_framesync_get_frame(&s->fs, 1, &threshold, 0)) < 0 ||
81  (ret = ff_framesync_get_frame(&s->fs, 2, &min, 0)) < 0 ||
82  (ret = ff_framesync_get_frame(&s->fs, 3, &max, 0)) < 0)
83  return ret;
84 
85  if (ctx->is_disabled) {
86  out = av_frame_clone(in);
87  if (!out)
88  return AVERROR(ENOMEM);
89  } else {
90  int p;
91 
92  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
93  if (!out)
94  return AVERROR(ENOMEM);
95  av_frame_copy_props(out, in);
96 
97  for (p = 0; p < s->nb_planes; p++) {
98  if (!(s->planes & (1 << p))) {
99  av_image_copy_plane(out->data[p], out->linesize[p],
100  in->data[p], in->linesize[p],
101  s->width[p] * s->bpc,
102  s->height[p]);
103  continue;
104  }
105  s->threshold(in->data[p], threshold->data[p],
106  min->data[p], max->data[p],
107  out->data[p],
108  in->linesize[p], threshold->linesize[p],
109  min->linesize[p], max->linesize[p],
110  out->linesize[p],
111  s->width[p], s->height[p]);
112  }
113  }
114 
115  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
116 
117  return ff_filter_frame(outlink, out);
118 }
119 
120 static void threshold8(const uint8_t *in, const uint8_t *threshold,
121  const uint8_t *min, const uint8_t *max,
122  uint8_t *out,
123  ptrdiff_t ilinesize, ptrdiff_t tlinesize,
124  ptrdiff_t flinesize, ptrdiff_t slinesize,
125  ptrdiff_t olinesize,
126  int w, int h)
127 {
128  int x, y;
129 
130  for (y = 0; y < h; y++) {
131  for (x = 0; x < w; x++) {
132  out[x] = in[x] < threshold[x] ? min[x] : max[x];
133  }
134 
135  in += ilinesize;
136  threshold += tlinesize;
137  min += flinesize;
138  max += slinesize;
139  out += olinesize;
140  }
141 }
142 
143 static void threshold16(const uint8_t *iin, const uint8_t *tthreshold,
144  const uint8_t *ffirst, const uint8_t *ssecond,
145  uint8_t *oout,
146  ptrdiff_t ilinesize, ptrdiff_t tlinesize,
147  ptrdiff_t flinesize, ptrdiff_t slinesize,
148  ptrdiff_t olinesize,
149  int w, int h)
150 {
151  const uint16_t *in = (const uint16_t *)iin;
152  const uint16_t *threshold = (const uint16_t *)tthreshold;
153  const uint16_t *min = (const uint16_t *)ffirst;
154  const uint16_t *max = (const uint16_t *)ssecond;
155  uint16_t *out = (uint16_t *)oout;
156  int x, y;
157 
158  for (y = 0; y < h; y++) {
159  for (x = 0; x < w; x++) {
160  out[x] = in[x] < threshold[x] ? min[x] : max[x];
161  }
162 
163  in += ilinesize / 2;
164  threshold += tlinesize / 2;
165  min += flinesize / 2;
166  max += slinesize / 2;
167  out += olinesize / 2;
168  }
169 }
170 
171 static int config_input(AVFilterLink *inlink)
172 {
173  AVFilterContext *ctx = inlink->dst;
174  ThresholdContext *s = ctx->priv;
176  int vsub, hsub;
177 
179 
180  hsub = desc->log2_chroma_w;
181  vsub = desc->log2_chroma_h;
182  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
183  s->height[0] = s->height[3] = inlink->h;
184  s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
185  s->width[0] = s->width[3] = inlink->w;
186  s->depth = desc->comp[0].depth;
187 
188  if (s->depth == 8) {
189  s->threshold = threshold8;
190  s->bpc = 1;
191  } else {
192  s->threshold = threshold16;
193  s->bpc = 2;
194  }
195 
196  if (ARCH_X86)
198 
199  return 0;
200 }
201 
202 static int config_output(AVFilterLink *outlink)
203 {
204  AVFilterContext *ctx = outlink->src;
205  ThresholdContext *s = ctx->priv;
206  AVFilterLink *base = ctx->inputs[0];
207  AVFilterLink *threshold = ctx->inputs[1];
208  AVFilterLink *min = ctx->inputs[2];
209  AVFilterLink *max = ctx->inputs[3];
210  FFFrameSyncIn *in;
211  int ret;
212 
213  if (base->format != threshold->format ||
214  base->format != min->format ||
215  base->format != max->format) {
216  av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
217  return AVERROR(EINVAL);
218  }
219  if (base->w != threshold->w ||
220  base->h != threshold->h ||
221  base->w != min->w ||
222  base->h != min->h ||
223  base->w != max->w ||
224  base->h != max->h) {
225  av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
226  "(size %dx%d) do not match the corresponding "
227  "second input link %s parameters (%dx%d) "
228  "and/or third input link %s parameters (%dx%d) "
229  "and/or fourth input link %s parameters (%dx%d)\n",
230  ctx->input_pads[0].name, base->w, base->h,
231  ctx->input_pads[1].name, threshold->w, threshold->h,
232  ctx->input_pads[2].name, min->w, min->h,
233  ctx->input_pads[3].name, max->w, max->h);
234  return AVERROR(EINVAL);
235  }
236 
237  outlink->w = base->w;
238  outlink->h = base->h;
239  outlink->time_base = base->time_base;
240  outlink->sample_aspect_ratio = base->sample_aspect_ratio;
241  outlink->frame_rate = base->frame_rate;
242 
243  if ((ret = ff_framesync_init(&s->fs, ctx, 4)) < 0)
244  return ret;
245 
246  in = s->fs.in;
247  in[0].time_base = base->time_base;
248  in[1].time_base = threshold->time_base;
249  in[2].time_base = min->time_base;
250  in[3].time_base = max->time_base;
251  in[0].sync = 1;
252  in[0].before = EXT_STOP;
253  in[0].after = EXT_STOP;
254  in[1].sync = 1;
255  in[1].before = EXT_STOP;
256  in[1].after = EXT_STOP;
257  in[2].sync = 1;
258  in[2].before = EXT_STOP;
259  in[2].after = EXT_STOP;
260  in[3].sync = 1;
261  in[3].before = EXT_STOP;
262  in[3].after = EXT_STOP;
263  s->fs.opaque = s;
265 
266  return ff_framesync_configure(&s->fs);
267 }
268 
270 {
271  ThresholdContext *s = ctx->priv;
272  return ff_framesync_activate(&s->fs);
273 }
274 
276 {
277  ThresholdContext *s = ctx->priv;
278 
279  ff_framesync_uninit(&s->fs);
280 }
281 
282 static const AVFilterPad inputs[] = {
283  {
284  .name = "default",
285  .type = AVMEDIA_TYPE_VIDEO,
286  .config_props = config_input,
287  },
288  {
289  .name = "threshold",
290  .type = AVMEDIA_TYPE_VIDEO,
291  },
292  {
293  .name = "min",
294  .type = AVMEDIA_TYPE_VIDEO,
295  },
296  {
297  .name = "max",
298  .type = AVMEDIA_TYPE_VIDEO,
299  },
300  { NULL }
301 };
302 
303 static const AVFilterPad outputs[] = {
304  {
305  .name = "default",
306  .type = AVMEDIA_TYPE_VIDEO,
307  .config_props = config_output,
308  },
309  { NULL }
310 };
311 
313  .name = "threshold",
314  .description = NULL_IF_CONFIG_SMALL("Threshold first video stream using other video streams."),
315  .priv_size = sizeof(ThresholdContext),
316  .priv_class = &threshold_class,
317  .uninit = uninit,
319  .activate = activate,
320  .inputs = inputs,
321  .outputs = outputs,
323 };
#define NULL
Definition: coverity.c:32
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:407
const char * s
Definition: avisynth_c.h:768
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:401
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2363
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
AVOption.
Definition: opt.h:246
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:403
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:388
void ff_threshold_init_x86(ThresholdContext *s)
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:404
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:2403
Main libavfilter public API header.
static int config_input(AVFilterLink *inlink)
Definition: vf_threshold.c:171
const char * desc
Definition: nvenc.c:63
int(* on_event)(struct FFFrameSync *fs)
Callback called when a frame event is ready.
Definition: framesync.h:172
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:164
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:384
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:349
static int config_output(AVFilterLink *outlink)
Definition: vf_threshold.c:202
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:117
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:385
int64_t pts
Timestamp of the current event.
Definition: framesync.h:167
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:86
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:350
void(* threshold)(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: threshold.h:37
const char * name
Pad name.
Definition: internal.h:60
AVFilterContext * parent
Parent filter context.
Definition: framesync.h:152
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:351
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1113
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:97
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
AVOptions.
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:120
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:294
static int query_formats(AVFilterContext *ctx)
Definition: vf_threshold.c:46
FFFrameSyncIn * in
Pointer to array of inputs.
Definition: framesync.h:203
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:400
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:383
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:96
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:381
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_threshold.c:275
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
Definition: framesync.h:91
Input stream structure.
Definition: framesync.h:81
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:406
static const AVOption threshold_options[]
Definition: vf_threshold.c:39
#define av_log(a,...)
FFFrameSync fs
Definition: threshold.h:46
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
static const AVFilterPad inputs[]
Definition: vf_threshold.c:282
AVFilterPad * input_pads
array of input pads
Definition: avfilter.h:345
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:172
#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:293
Frame sync structure.
Definition: framesync.h:146
#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:186
void * priv
private data for use by the filter
Definition: avfilter.h:353
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:408
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:389
AVRational time_base
Time base for the incoming frames.
Definition: framesync.h:96
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
Definition: framesync.c:344
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:371
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:390
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
common internal API header
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:366
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:387
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:352
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
AVFormatContext * ctx
Definition: movenc.c:48
AVRational time_base
Time base for the output events.
Definition: framesync.h:162
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:405
void * opaque
Opaque pointer, not used by the API.
Definition: framesync.h:177
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:367
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:386
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:497
static const AVFilterPad outputs[]
Definition: vf_threshold.c:303
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:379
AVFILTER_DEFINE_CLASS(threshold)
AVFilter ff_vf_threshold
Definition: vf_threshold.c:312
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:232
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:77
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:173
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
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
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:368
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:139
Filter definition.
Definition: avfilter.h:144
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:365
#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:350
#define OFFSET(x)
Definition: vf_threshold.c:36
static int process_frame(FFFrameSync *fs)
Definition: vf_threshold.c:71
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:385
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:369
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
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:143
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:211
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:402
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
static int activate(AVFilterContext *ctx)
Definition: vf_threshold.c:269
Completely stop all streams with this one.
Definition: framesync.h:65
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:254
An instance of a filter.
Definition: avfilter.h:338
FILE * out
Definition: movenc.c:54
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:95
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:338
#define FLAGS
Definition: vf_threshold.c:37
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:256
int depth
Number of bits in the component.
Definition: pixdesc.h:58
float min
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:380
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:609
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58