FFmpeg
vf_threshold.c
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1 /*
2  * Copyright (c) 2016 Paul B Mahol
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * threshold video filter
24  */
25 
26 #include "libavutil/imgutils.h"
27 #include "libavutil/internal.h"
28 #include "libavutil/opt.h"
29 #include "libavutil/pixdesc.h"
30 #include "avfilter.h"
31 #include "framesync.h"
32 #include "internal.h"
33 #include "video.h"
34 #include "threshold.h"
35 
36 #define OFFSET(x) offsetof(ThresholdContext, x)
37 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
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[] = {
68  };
69 
71 }
72 
73 typedef struct ThreadData {
74  AVFrame *in;
78  AVFrame *out;
79 } ThreadData;
80 
81 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
82 {
83  ThresholdContext *s = ctx->priv;
84  ThreadData *td = arg;
85  AVFrame *min = td->min;
86  AVFrame *max = td->max;
87  AVFrame *threshold = td->threshold;
88  AVFrame *in = td->in;
89  AVFrame *out = td->out;
90 
91  for (int p = 0; p < s->nb_planes; p++) {
92  const int h = s->height[p];
93  const int slice_start = (h * jobnr) / nb_jobs;
94  const int slice_end = (h * (jobnr+1)) / nb_jobs;
95 
96  if (!(s->planes & (1 << p))) {
97  av_image_copy_plane(out->data[p] + slice_start * out->linesize[p],
98  out->linesize[p],
99  in->data[p] + slice_start * in->linesize[p],
100  in->linesize[p],
101  s->width[p] * s->bpc,
102  slice_end - slice_start);
103  continue;
104  }
105  s->threshold(in->data[p] + slice_start * in->linesize[p],
106  threshold->data[p] + slice_start * threshold->linesize[p],
107  min->data[p] + slice_start * min->linesize[p],
108  max->data[p] + slice_start * max->linesize[p],
109  out->data[p] + slice_start * out->linesize[p],
110  in->linesize[p], threshold->linesize[p],
111  min->linesize[p], max->linesize[p],
112  out->linesize[p],
113  s->width[p], slice_end - slice_start);
114  }
115 
116  return 0;
117 }
118 
120 {
121  AVFilterContext *ctx = fs->parent;
122  ThresholdContext *s = fs->opaque;
123  AVFilterLink *outlink = ctx->outputs[0];
124  AVFrame *out, *in, *threshold, *min, *max;
125  ThreadData td;
126  int ret;
127 
128  if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 0)) < 0 ||
129  (ret = ff_framesync_get_frame(&s->fs, 1, &threshold, 0)) < 0 ||
130  (ret = ff_framesync_get_frame(&s->fs, 2, &min, 0)) < 0 ||
131  (ret = ff_framesync_get_frame(&s->fs, 3, &max, 0)) < 0)
132  return ret;
133 
134  if (ctx->is_disabled) {
135  out = av_frame_clone(in);
136  if (!out)
137  return AVERROR(ENOMEM);
138  } else {
139  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
140  if (!out)
141  return AVERROR(ENOMEM);
143 
144  td.out = out;
145  td.in = in;
146  td.threshold = threshold;
147  td.min = min;
148  td.max = max;
149  ctx->internal->execute(ctx, filter_slice, &td, NULL,
150  FFMIN(s->height[2], ff_filter_get_nb_threads(ctx)));
151  }
152 
153  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
154 
155  return ff_filter_frame(outlink, out);
156 }
157 
158 static void threshold8(const uint8_t *in, const uint8_t *threshold,
159  const uint8_t *min, const uint8_t *max,
160  uint8_t *out,
161  ptrdiff_t ilinesize, ptrdiff_t tlinesize,
162  ptrdiff_t flinesize, ptrdiff_t slinesize,
163  ptrdiff_t olinesize,
164  int w, int h)
165 {
166  int x, y;
167 
168  for (y = 0; y < h; y++) {
169  for (x = 0; x < w; x++) {
170  out[x] = in[x] < threshold[x] ? min[x] : max[x];
171  }
172 
173  in += ilinesize;
174  threshold += tlinesize;
175  min += flinesize;
176  max += slinesize;
177  out += olinesize;
178  }
179 }
180 
181 static void threshold16(const uint8_t *iin, const uint8_t *tthreshold,
182  const uint8_t *ffirst, const uint8_t *ssecond,
183  uint8_t *oout,
184  ptrdiff_t ilinesize, ptrdiff_t tlinesize,
185  ptrdiff_t flinesize, ptrdiff_t slinesize,
186  ptrdiff_t olinesize,
187  int w, int h)
188 {
189  const uint16_t *in = (const uint16_t *)iin;
190  const uint16_t *threshold = (const uint16_t *)tthreshold;
191  const uint16_t *min = (const uint16_t *)ffirst;
192  const uint16_t *max = (const uint16_t *)ssecond;
193  uint16_t *out = (uint16_t *)oout;
194  int x, y;
195 
196  for (y = 0; y < h; y++) {
197  for (x = 0; x < w; x++) {
198  out[x] = in[x] < threshold[x] ? min[x] : max[x];
199  }
200 
201  in += ilinesize / 2;
202  threshold += tlinesize / 2;
203  min += flinesize / 2;
204  max += slinesize / 2;
205  out += olinesize / 2;
206  }
207 }
208 
210 {
211  AVFilterContext *ctx = inlink->dst;
212  ThresholdContext *s = ctx->priv;
214  int vsub, hsub;
215 
216  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
217 
218  hsub = desc->log2_chroma_w;
219  vsub = desc->log2_chroma_h;
220  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
221  s->height[0] = s->height[3] = inlink->h;
222  s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
223  s->width[0] = s->width[3] = inlink->w;
224  s->depth = desc->comp[0].depth;
225 
227 
228  return 0;
229 }
230 
232 {
233  if (s->depth == 8) {
234  s->threshold = threshold8;
235  s->bpc = 1;
236  } else {
237  s->threshold = threshold16;
238  s->bpc = 2;
239  }
240 
241  if (ARCH_X86)
243 }
244 
245 static int config_output(AVFilterLink *outlink)
246 {
247  AVFilterContext *ctx = outlink->src;
248  ThresholdContext *s = ctx->priv;
249  AVFilterLink *base = ctx->inputs[0];
250  AVFilterLink *threshold = ctx->inputs[1];
251  AVFilterLink *min = ctx->inputs[2];
252  AVFilterLink *max = ctx->inputs[3];
253  FFFrameSyncIn *in;
254  int ret;
255 
256  if (base->format != threshold->format ||
257  base->format != min->format ||
258  base->format != max->format) {
259  av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
260  return AVERROR(EINVAL);
261  }
262  if (base->w != threshold->w ||
263  base->h != threshold->h ||
264  base->w != min->w ||
265  base->h != min->h ||
266  base->w != max->w ||
267  base->h != max->h) {
268  av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
269  "(size %dx%d) do not match the corresponding "
270  "second input link %s parameters (%dx%d) "
271  "and/or third input link %s parameters (%dx%d) "
272  "and/or fourth input link %s parameters (%dx%d)\n",
273  ctx->input_pads[0].name, base->w, base->h,
274  ctx->input_pads[1].name, threshold->w, threshold->h,
275  ctx->input_pads[2].name, min->w, min->h,
276  ctx->input_pads[3].name, max->w, max->h);
277  return AVERROR(EINVAL);
278  }
279 
280  outlink->w = base->w;
281  outlink->h = base->h;
282  outlink->sample_aspect_ratio = base->sample_aspect_ratio;
283  outlink->frame_rate = base->frame_rate;
284 
285  if ((ret = ff_framesync_init(&s->fs, ctx, 4)) < 0)
286  return ret;
287 
288  in = s->fs.in;
289  in[0].time_base = base->time_base;
290  in[1].time_base = threshold->time_base;
291  in[2].time_base = min->time_base;
292  in[3].time_base = max->time_base;
293  in[0].sync = 1;
294  in[0].before = EXT_STOP;
295  in[0].after = EXT_STOP;
296  in[1].sync = 1;
297  in[1].before = EXT_STOP;
298  in[1].after = EXT_STOP;
299  in[2].sync = 1;
300  in[2].before = EXT_STOP;
301  in[2].after = EXT_STOP;
302  in[3].sync = 1;
303  in[3].before = EXT_STOP;
304  in[3].after = EXT_STOP;
305  s->fs.opaque = s;
306  s->fs.on_event = process_frame;
307 
308  ret = ff_framesync_configure(&s->fs);
309  outlink->time_base = s->fs.time_base;
310 
311  return ret;
312 }
313 
315 {
316  ThresholdContext *s = ctx->priv;
317  return ff_framesync_activate(&s->fs);
318 }
319 
321 {
322  ThresholdContext *s = ctx->priv;
323 
324  ff_framesync_uninit(&s->fs);
325 }
326 
327 static const AVFilterPad inputs[] = {
328  {
329  .name = "default",
330  .type = AVMEDIA_TYPE_VIDEO,
331  .config_props = config_input,
332  },
333  {
334  .name = "threshold",
335  .type = AVMEDIA_TYPE_VIDEO,
336  },
337  {
338  .name = "min",
339  .type = AVMEDIA_TYPE_VIDEO,
340  },
341  {
342  .name = "max",
343  .type = AVMEDIA_TYPE_VIDEO,
344  },
345  { NULL }
346 };
347 
348 static const AVFilterPad outputs[] = {
349  {
350  .name = "default",
351  .type = AVMEDIA_TYPE_VIDEO,
352  .config_props = config_output,
353  },
354  { NULL }
355 };
356 
358  .name = "threshold",
359  .description = NULL_IF_CONFIG_SMALL("Threshold first video stream using other video streams."),
360  .priv_size = sizeof(ThresholdContext),
361  .priv_class = &threshold_class,
362  .uninit = uninit,
364  .activate = activate,
365  .inputs = inputs,
366  .outputs = outputs,
368 };
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:99
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:442
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:421
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:124
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
process_frame
static int process_frame(FFFrameSync *fs)
Definition: vf_threshold.c:119
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
filter_slice
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_threshold.c:81
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:290
out
FILE * out
Definition: movenc.c:54
ff_threshold_init
void ff_threshold_init(ThresholdContext *s)
Definition: vf_threshold.c:231
threshold.h
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1094
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
OFFSET
#define OFFSET(x)
Definition: vf_threshold.c:36
ff_framesync_get_frame
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
Definition: framesync.c:253
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:434
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:324
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:441
w
uint8_t w
Definition: llviddspenc.c:39
FLAGS
#define FLAGS
Definition: vf_threshold.c:37
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:436
AVOption
AVOption.
Definition: opt.h:248
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:399
base
uint8_t base
Definition: vp3data.h:141
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
max
#define max(a, b)
Definition: cuda_runtime.h:33
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
FFFrameSync
Frame sync structure.
Definition: framesync.h:146
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:502
video.h
AVFormatContext::internal
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1698
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:437
ff_vf_threshold
AVFilter ff_vf_threshold
Definition: vf_threshold.c:357
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:379
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:338
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:373
hsub
static void hsub(htype *dst, const htype *src, int bins)
Definition: vf_median.c:75
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_threshold.c:320
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2613
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:433
EXT_STOP
@ EXT_STOP
Completely stop all streams with this one.
Definition: framesync.h:65
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:417
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:415
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:443
FFFrameSyncIn
Input stream structure.
Definition: framesync.h:81
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:397
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(threshold)
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:383
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
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:258
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:411
ff_set_common_formats
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:587
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:419
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:420
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:412
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2032
ff_threshold_init_x86
void ff_threshold_init_x86(ThresholdContext *s)
Definition: vf_threshold_init.c:40
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_threshold.c:46
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:303
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:440
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:396
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:410
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:382
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:541
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
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
arg
const char * arg
Definition: jacosubdec.c:66
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:380
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:418
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:659
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:259
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:401
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
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:414
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
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:404
ThreadData::min
AVFrame * min
Definition: vf_threshold.c:76
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:406
ThresholdContext
Definition: threshold.h:27
FFMIN
#define FFMIN(a, b)
Definition: common.h:105
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:177
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:438
internal.h
in
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;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);return NULL;} return ac;} 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;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->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);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Definition: audio_convert.c:326
outputs
static const AVFilterPad outputs[]
Definition: vf_threshold.c:348
internal.h
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:416
threshold8
static void threshold8(const uint8_t *in, const uint8_t *threshold, const uint8_t *min, const uint8_t *max, uint8_t *out, ptrdiff_t ilinesize, ptrdiff_t tlinesize, ptrdiff_t flinesize, ptrdiff_t slinesize, ptrdiff_t olinesize, int w, int h)
Definition: vf_threshold.c:158
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
ThreadData
Used for passing data between threads.
Definition: dsddec.c:67
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
uint8_t
uint8_t
Definition: audio_convert.c:194
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:398
AVFilter
Filter definition.
Definition: avfilter.h:145
ret
ret
Definition: filter_design.txt:187
threshold_options
static const AVOption threshold_options[]
Definition: vf_threshold.c:39
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:435
ff_framesync_init
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:84
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:403
activate
static int activate(AVFilterContext *ctx)
Definition: vf_threshold.c:314
ThreadData::threshold
AVFrame * threshold
Definition: vf_threshold.c:75
framesync.h
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_threshold.c:209
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:439
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:341
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
planes
static const struct @322 planes[]
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
ThreadData::in
AVFrame * in
Definition: af_adenorm.c:223
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_threshold.c:245
threshold16
static void threshold16(const uint8_t *iin, const uint8_t *tthreshold, const uint8_t *ffirst, const uint8_t *ssecond, uint8_t *oout, ptrdiff_t ilinesize, ptrdiff_t tlinesize, ptrdiff_t flinesize, ptrdiff_t slinesize, ptrdiff_t olinesize, int w, int h)
Definition: vf_threshold.c:181
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:134
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:355
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
ThreadData::max
AVFrame * max
Definition: vf_threshold.c:77
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:405
h
h
Definition: vp9dsp_template.c:2038
ff_framesync_activate
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
Definition: framesync.c:341
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:381
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:176
inputs
static const AVFilterPad inputs[]
Definition: vf_threshold.c:327
min
float min
Definition: vorbis_enc_data.h:456