FFmpeg  4.2.2
vf_xmedian.c
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1 /*
2  * Copyright (c) 2019 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 #include "libavutil/avstring.h"
22 #include "libavutil/imgutils.h"
23 #include "libavutil/intreadwrite.h"
24 #include "libavutil/opt.h"
25 #include "libavutil/pixdesc.h"
26 #include "libavutil/qsort.h"
27 
28 #include "avfilter.h"
29 #include "formats.h"
30 #include "internal.h"
31 #include "framesync.h"
32 #include "video.h"
33 
34 typedef struct XMedianContext {
35  const AVClass *class;
37  int nb_inputs;
38  int planes;
39 
40  int radius;
41  int depth;
42  int max;
43  int nb_planes;
44  int linesize[4];
45  int width[4];
46  int height[4];
47 
50 
51  int (*median_frames)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
53 
55 {
56  static const enum AVPixelFormat pixel_fmts[] = {
79  };
81  if (!formats)
82  return AVERROR(ENOMEM);
83  return ff_set_common_formats(ctx, formats);
84 }
85 
87 {
88  XMedianContext *s = ctx->priv;
89  int ret;
90 
91  s->radius = s->nb_inputs / 2;
92  s->frames = av_calloc(s->nb_inputs, sizeof(*s->frames));
93  if (!s->frames)
94  return AVERROR(ENOMEM);
95 
96  for (int i = 0; i < s->nb_inputs; i++) {
97  AVFilterPad pad = { 0 };
98 
100  pad.name = av_asprintf("input%d", i);
101  if (!pad.name)
102  return AVERROR(ENOMEM);
103 
104  if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0) {
105  av_freep(&pad.name);
106  return ret;
107  }
108  }
109 
110  return 0;
111 }
112 
113 typedef struct ThreadData {
114  AVFrame **in, *out;
115 } ThreadData;
116 
117 static int comparei(const void *p1, const void *p2)
118 {
119  int left = *(const int *)p1;
120  int right = *(const int *)p2;
121  return FFDIFFSIGN(left, right);
122 }
123 
124 static int median_frames16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
125 {
126  XMedianContext *s = ctx->priv;
127  ThreadData *td = arg;
128  AVFrame **in = td->in;
129  AVFrame *out = td->out;
130  const int nb_inputs = s->nb_inputs;
131  const int radius = s->radius;
132  int values[256];
133 
134  for (int p = 0; p < s->nb_planes; p++) {
135  const int slice_start = (s->height[p] * jobnr) / nb_jobs;
136  const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
137  uint16_t *dst = (uint16_t *)(out->data[p] + slice_start * out->linesize[p]);
138 
139  if (!((1 << p) & s->planes)) {
140  av_image_copy_plane((uint8_t *)dst, out->linesize[p],
141  in[0]->data[p] + slice_start * in[radius]->linesize[p],
142  in[0]->linesize[p],
143  s->linesize[p], slice_end - slice_start);
144  continue;
145  }
146 
147  for (int y = slice_start; y < slice_end; y++) {
148  for (int x = 0; x < s->width[p]; x++) {
149  for (int i = 0; i < nb_inputs; i++) {
150  const uint16_t *src = (const uint16_t *)(in[i]->data[p] + y * in[i]->linesize[p]);
151  values[i] = src[x];
152  }
153 
154  AV_QSORT(values, nb_inputs, int, comparei);
155  if (radius & 1)
156  dst[x] = values[radius];
157  else
158  dst[x] = (values[radius] + values[radius - 1]) >> 1;
159  }
160 
161  dst += out->linesize[p] / 2;
162  }
163  }
164 
165  return 0;
166 }
167 
168 static int median_frames8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
169 {
170  XMedianContext *s = ctx->priv;
171  ThreadData *td = arg;
172  AVFrame **in = td->in;
173  AVFrame *out = td->out;
174  const int nb_inputs = s->nb_inputs;
175  const int radius = s->radius;
176  int values[256];
177 
178  for (int p = 0; p < s->nb_planes; p++) {
179  const int slice_start = (s->height[p] * jobnr) / nb_jobs;
180  const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
181  uint8_t *dst = out->data[p] + slice_start * out->linesize[p];
182 
183  if (!((1 << p) & s->planes)) {
184  av_image_copy_plane(dst, out->linesize[p],
185  in[0]->data[p] + slice_start * in[0]->linesize[p],
186  in[0]->linesize[p],
187  s->linesize[p], slice_end - slice_start);
188  continue;
189  }
190 
191  for (int y = slice_start; y < slice_end; y++) {
192  for (int x = 0; x < s->width[p]; x++) {
193  for (int i = 0; i < nb_inputs; i++)
194  values[i] = in[i]->data[p][y * in[i]->linesize[p] + x];
195 
196  AV_QSORT(values, nb_inputs, int, comparei);
197  if (radius & 1)
198  dst[x] = values[radius];
199  else
200  dst[x] = (values[radius] + values[radius - 1]) >> 1;
201  }
202 
203  dst += out->linesize[p];
204  }
205  }
206 
207  return 0;
208 }
209 
211 {
212  AVFilterContext *ctx = fs->parent;
213  AVFilterLink *outlink = ctx->outputs[0];
214  XMedianContext *s = fs->opaque;
215  AVFrame **in = s->frames;
216  AVFrame *out;
217  ThreadData td;
218  int i, ret;
219 
220  for (i = 0; i < s->nb_inputs; i++) {
221  if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0)
222  return ret;
223  }
224 
225  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
226  if (!out)
227  return AVERROR(ENOMEM);
228  out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
229 
230  td.in = in;
231  td.out = out;
232  ctx->internal->execute(ctx, s->median_frames, &td, NULL, FFMIN(s->height[1], ff_filter_get_nb_threads(ctx)));
233 
234  return ff_filter_frame(outlink, out);
235 }
236 
237 static int config_output(AVFilterLink *outlink)
238 {
239  AVFilterContext *ctx = outlink->src;
240  XMedianContext *s = ctx->priv;
241  AVRational frame_rate = ctx->inputs[0]->frame_rate;
242  AVRational sar = ctx->inputs[0]->sample_aspect_ratio;
243  AVFilterLink *inlink = ctx->inputs[0];
244  int height = ctx->inputs[0]->h;
245  int width = ctx->inputs[0]->w;
246  FFFrameSyncIn *in;
247  int i, ret;
248 
249  for (int i = 1; i < s->nb_inputs; i++) {
250  if (ctx->inputs[i]->h != height || ctx->inputs[i]->w != width) {
251  av_log(ctx, AV_LOG_ERROR, "Input %d size (%dx%d) does not match input %d size (%dx%d).\n", i, ctx->inputs[i]->w, ctx->inputs[i]->h, 0, width, height);
252  return AVERROR(EINVAL);
253  }
254  }
255 
256  s->desc = av_pix_fmt_desc_get(outlink->format);
257  if (!s->desc)
258  return AVERROR_BUG;
260  s->depth = s->desc->comp[0].depth;
261  s->max = (1 << s->depth) - 1;
262 
263  if (s->depth <= 8)
265  else
267 
268  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
269  return ret;
270 
271  s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, s->desc->log2_chroma_w);
272  s->width[0] = s->width[3] = inlink->w;
273  s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
274  s->height[0] = s->height[3] = inlink->h;
275 
276  outlink->w = width;
277  outlink->h = height;
278  outlink->frame_rate = frame_rate;
279  outlink->sample_aspect_ratio = sar;
280 
281  if ((ret = ff_framesync_init(&s->fs, ctx, s->nb_inputs)) < 0)
282  return ret;
283 
284  in = s->fs.in;
285  s->fs.opaque = s;
287 
288  for (i = 0; i < s->nb_inputs; i++) {
289  AVFilterLink *inlink = ctx->inputs[i];
290 
291  in[i].time_base = inlink->time_base;
292  in[i].sync = 1;
293  in[i].before = EXT_STOP;
294  in[i].after = EXT_STOP;
295  }
296 
297  ret = ff_framesync_configure(&s->fs);
298  outlink->time_base = s->fs.time_base;
299 
300  return ret;
301 }
302 
304 {
305  XMedianContext *s = ctx->priv;
306 
307  ff_framesync_uninit(&s->fs);
308  av_freep(&s->frames);
309 
310  for (int i = 0; i < ctx->nb_inputs; i++)
311  av_freep(&ctx->input_pads[i].name);
312 }
313 
315 {
316  XMedianContext *s = ctx->priv;
317  return ff_framesync_activate(&s->fs);
318 }
319 
320 #define OFFSET(x) offsetof(XMedianContext, x)
321 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
322 
323 static const AVOption xmedian_options[] = {
324  { "inputs", "set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=3}, 3, 255, .flags = FLAGS },
325  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags = FLAGS },
326  { NULL },
327 };
328 
329 static const AVFilterPad outputs[] = {
330  {
331  .name = "default",
332  .type = AVMEDIA_TYPE_VIDEO,
333  .config_props = config_output,
334  },
335  { NULL }
336 };
337 
338 AVFILTER_DEFINE_CLASS(xmedian);
339 
341  .name = "xmedian",
342  .description = NULL_IF_CONFIG_SMALL("Pick median pixels from several video inputs."),
343  .priv_size = sizeof(XMedianContext),
344  .priv_class = &xmedian_class,
346  .outputs = outputs,
347  .init = init,
348  .uninit = uninit,
349  .activate = activate,
351 };
#define NULL
Definition: coverity.c:32
AVFrame * out
Definition: af_adeclick.c:488
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:389
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
#define OFFSET(x)
Definition: vf_xmedian.c:320
AVOption.
Definition: opt.h:246
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:397
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
AVFILTER_DEFINE_CLASS(xmedian)
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2562
Main libavfilter public API header.
FFFrameSync fs
Definition: vf_xmedian.c:49
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
Definition: avfilter.h:105
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:403
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:367
static int comparei(const void *p1, const void *p2)
Definition: vf_xmedian.c:117
enum AVMediaType type
AVFilterPad type.
Definition: internal.h:65
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:391
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:99
static int config_output(AVFilterLink *outlink)
Definition: vf_xmedian.c:237
#define src
Definition: vp8dsp.c:254
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
static int median_frames8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_xmedian.c:168
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
Definition: framesync.h:86
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:244
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:368
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:369
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
int height[4]
Definition: vf_xmedian.c:46
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
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 int median_frames16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_xmedian.c:124
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:388
FFFrameSyncIn * in
Pointer to array of inputs.
Definition: framesync.h:203
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:402
const char data[16]
Definition: mxf.c:91
int width[4]
Definition: vf_xmedian.c:45
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:400
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_YUV422P12
Definition: pixfmt.h:392
#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
static const AVOption xmedian_options[]
Definition: vf_xmedian.c:323
AVFilterPad * input_pads
array of input pads
Definition: avfilter.h:345
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
#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
#define td
Definition: regdef.h:70
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
AVFilter ff_vf_xmedian
Definition: vf_xmedian.c:340
void * priv
private data for use by the filter
Definition: avfilter.h:353
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
const char * arg
Definition: jacosubdec.c:66
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&#39;s input and try to produce output.
Definition: framesync.c:344
int linesize[4]
Definition: vf_xmedian.c:44
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
int(* on_event)(struct FFFrameSync *fs)
Callback called when a frame event is ready.
Definition: framesync.h:172
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_xmedian.c:303
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
char * av_asprintf(const char *fmt,...)
Definition: avstring.c:113
#define FFDIFFSIGN(x, y)
Comparator.
Definition: common.h:92
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:385
static int activate(AVFilterContext *ctx)
Definition: vf_xmedian.c:314
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:406
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
unsigned nb_inputs
number of input pads
Definition: avfilter.h:347
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:371
#define FFMIN(a, b)
Definition: common.h:96
static int query_formats(AVFilterContext *ctx)
Definition: vf_xmedian.c:54
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
AVFormatContext * ctx
Definition: movenc.c:48
AVRational time_base
Time base for the output events.
Definition: framesync.h:162
#define s(width, name)
Definition: cbs_vp9.c:257
void * opaque
Opaque pointer, not used by the API.
Definition: framesync.h:177
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:386
static av_cold int init(AVFilterContext *ctx)
Definition: vf_xmedian.c:86
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:405
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:398
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:395
Used for passing data between threads.
Definition: af_adeclick.c:487
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:77
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:370
int(* median_frames)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_xmedian.c:51
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
AVFrame ** frames
Definition: vf_xmedian.c:48
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)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:387
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events...
Definition: framesync.h:139
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
Definition: imgutils.c:89
Rational number (pair of numerator and denominator).
Definition: rational.h:58
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:393
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:384
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static int process_frame(FFFrameSync *fs)
Definition: vf_xmedian.c:210
static const AVFilterPad outputs[]
Definition: vf_xmedian.c:329
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:396
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:404
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:388
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:394
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
int
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
Y , 8bpp.
Definition: pixfmt.h:74
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
avfilter_execute_func * execute
Definition: internal.h:155
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2029
Completely stop all streams with this one.
Definition: framesync.h:65
A list of supported formats for one end of a filter link.
Definition: formats.h:64
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
An instance of a filter.
Definition: avfilter.h:338
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:99
AVFrame * in
Definition: af_afftdn.c:1082
formats
Definition: signature.h:48
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
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
#define FLAGS
Definition: vf_xmedian.c:321
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
const AVPixFmtDescriptor * desc
Definition: vf_xmedian.c:36
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:399
#define AV_QSORT(p, num, type, cmp)
Quicksort This sort is fast, and fully inplace but not stable and it is possible to construct input t...
Definition: qsort.h:33
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
static int ff_insert_inpad(AVFilterContext *f, unsigned index, AVFilterPad *p)
Insert a new input pad for the filter.
Definition: internal.h:277