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vf_avgblur.c
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1 /*
2  * Copyright (c) 2016 Paul B Mahol
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a copy
5  * of this software and associated documentation files (the "Software"), to deal
6  * in the Software without restriction, including without limitation the rights
7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8  * copies of the Software, and to permit persons to whom the Software is
9  * furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20  * SOFTWARE.
21  */
22 
23 #include "libavutil/imgutils.h"
24 #include "libavutil/opt.h"
25 #include "libavutil/pixdesc.h"
26 #include "avfilter.h"
27 #include "formats.h"
28 #include "internal.h"
29 #include "video.h"
30 
31 typedef struct AverageBlurContext {
32  const AVClass *class;
33 
34  int radius;
35  int radiusV;
36  int planes;
37 
38  int depth;
39  int planewidth[4];
40  int planeheight[4];
41  float *buffer;
42  int nb_planes;
43 
44  int (*filter_horizontally)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
45  int (*filter_vertically)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
47 
48 #define OFFSET(x) offsetof(AverageBlurContext, x)
49 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
50 
51 static const AVOption avgblur_options[] = {
52  { "sizeX", "set horizontal size", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=1}, 1, 1024, FLAGS },
53  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
54  { "sizeY", "set vertical size", OFFSET(radiusV), AV_OPT_TYPE_INT, {.i64=0}, 0, 1024, FLAGS },
55  { NULL }
56 };
57 
58 AVFILTER_DEFINE_CLASS(avgblur);
59 
60 typedef struct ThreadData {
61  int height;
62  int width;
64  int linesize;
65 } ThreadData;
66 
67 #define HORIZONTAL_FILTER(name, type) \
68 static int filter_horizontally_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)\
69 { \
70  AverageBlurContext *s = ctx->priv; \
71  ThreadData *td = arg; \
72  const int height = td->height; \
73  const int width = td->width; \
74  const int slice_start = (height * jobnr ) / nb_jobs; \
75  const int slice_end = (height * (jobnr+1)) / nb_jobs; \
76  const int radius = FFMIN(s->radius, width / 2); \
77  const int linesize = td->linesize / sizeof(type); \
78  float *buffer = s->buffer; \
79  const type *src; \
80  float *ptr; \
81  int y, x; \
82  \
83  /* Filter horizontally along each row */ \
84  for (y = slice_start; y < slice_end; y++) { \
85  float acc = 0; \
86  int count = 0; \
87  \
88  src = (const type *)td->ptr + linesize * y; \
89  ptr = buffer + width * y; \
90  \
91  for (x = 0; x < radius; x++) { \
92  acc += src[x]; \
93  } \
94  count += radius; \
95  \
96  for (x = 0; x <= radius; x++) { \
97  acc += src[x + radius]; \
98  count++; \
99  ptr[x] = acc / count; \
100  } \
101  \
102  for (; x < width - radius; x++) { \
103  acc += src[x + radius] - src[x - radius - 1]; \
104  ptr[x] = acc / count; \
105  } \
106  \
107  for (; x < width; x++) { \
108  acc -= src[x - radius]; \
109  count--; \
110  ptr[x] = acc / count; \
111  } \
112  } \
113  \
114  return 0; \
115 }
116 
118 HORIZONTAL_FILTER(16, uint16_t)
119 
120 #define VERTICAL_FILTER(name, type) \
121 static int filter_vertically_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
122 { \
123  AverageBlurContext *s = ctx->priv; \
124  ThreadData *td = arg; \
125  const int height = td->height; \
126  const int width = td->width; \
127  const int slice_start = (width * jobnr ) / nb_jobs; \
128  const int slice_end = (width * (jobnr+1)) / nb_jobs; \
129  const int radius = FFMIN(s->radiusV, height / 2); \
130  const int linesize = td->linesize / sizeof(type); \
131  type *buffer = (type *)td->ptr; \
132  const float *src; \
133  type *ptr; \
134  int i, x; \
135  \
136  /* Filter vertically along each column */ \
137  for (x = slice_start; x < slice_end; x++) { \
138  float acc = 0; \
139  int count = 0; \
140  \
141  ptr = buffer + x; \
142  src = s->buffer + x; \
143  \
144  for (i = 0; i < radius; i++) { \
145  acc += src[0]; \
146  src += width; \
147  } \
148  count += radius; \
149  \
150  src = s->buffer + x; \
151  ptr = buffer + x; \
152  for (i = 0; i <= radius; i++) { \
153  acc += src[(i + radius) * width]; \
154  count++; \
155  ptr[i * linesize] = acc / count; \
156  } \
157  \
158  for (; i < height - radius; i++) { \
159  acc += src[(i + radius) * width] - src[(i - radius - 1) * width]; \
160  ptr[i * linesize] = acc / count; \
161  } \
162  \
163  for (; i < height; i++) { \
164  acc -= src[(i - radius) * width]; \
165  count--; \
166  ptr[i * linesize] = acc / count; \
167  } \
168  } \
169  \
170  return 0; \
171 }
172 
174 VERTICAL_FILTER(16, uint16_t)
175 
176 static int config_input(AVFilterLink *inlink)
177 {
178  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
179  AverageBlurContext *s = inlink->dst->priv;
180 
181  s->depth = desc->comp[0].depth;
182  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
183  s->planewidth[0] = s->planewidth[3] = inlink->w;
184  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
185  s->planeheight[0] = s->planeheight[3] = inlink->h;
186 
187  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
188 
189  s->buffer = av_malloc_array(inlink->w, inlink->h * sizeof(*s->buffer));
190  if (!s->buffer)
191  return AVERROR(ENOMEM);
192 
193  if (s->radiusV <= 0) {
194  s->radiusV = s->radius;
195  }
196 
197  if (s->depth == 8) {
198  s->filter_horizontally = filter_horizontally_8;
199  s->filter_vertically = filter_vertically_8;
200  } else {
201  s->filter_horizontally = filter_horizontally_16;
202  s->filter_vertically = filter_vertically_16;
203  }
204 
205  return 0;
206 }
207 
209 {
210  AverageBlurContext *s = ctx->priv;
211  const int width = s->planewidth[plane];
212  const int height = s->planeheight[plane];
213  const int nb_threads = ff_filter_get_nb_threads(ctx);
214  ThreadData td;
215 
216  td.width = width;
217  td.height = height;
218  td.ptr = in->data[plane];
219  td.linesize = in->linesize[plane];
220  ctx->internal->execute(ctx, s->filter_horizontally, &td, NULL, FFMIN(height, nb_threads));
221  td.ptr = out->data[plane];
222  td.linesize = out->linesize[plane];
223  ctx->internal->execute(ctx, s->filter_vertically, &td, NULL, FFMIN(width, nb_threads));
224 }
225 
227 {
228  static const enum AVPixelFormat pix_fmts[] = {
247  };
248 
249  return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
250 }
251 
252 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
253 {
254  AVFilterContext *ctx = inlink->dst;
255  AverageBlurContext *s = ctx->priv;
256  AVFilterLink *outlink = ctx->outputs[0];
257  AVFrame *out;
258  int plane;
259 
260  if (av_frame_is_writable(in)) {
261  out = in;
262  } else {
263  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
264  if (!out) {
265  av_frame_free(&in);
266  return AVERROR(ENOMEM);
267  }
268  av_frame_copy_props(out, in);
269  }
270 
271  for (plane = 0; plane < s->nb_planes; plane++) {
272  const int height = s->planeheight[plane];
273  const int width = s->planewidth[plane];
274 
275  if (!(s->planes & (1 << plane))) {
276  if (out != in)
277  av_image_copy_plane(out->data[plane], out->linesize[plane],
278  in->data[plane], in->linesize[plane],
279  width * ((s->depth + 7) / 8), height);
280  continue;
281  }
282 
283  averageiir2d(ctx, in, out, plane);
284  }
285 
286  if (out != in)
287  av_frame_free(&in);
288  return ff_filter_frame(outlink, out);
289 }
290 
292 {
293  AverageBlurContext *s = ctx->priv;
294 
295  av_freep(&s->buffer);
296 }
297 
298 static const AVFilterPad avgblur_inputs[] = {
299  {
300  .name = "default",
301  .type = AVMEDIA_TYPE_VIDEO,
302  .config_props = config_input,
303  .filter_frame = filter_frame,
304  },
305  { NULL }
306 };
307 
308 static const AVFilterPad avgblur_outputs[] = {
309  {
310  .name = "default",
311  .type = AVMEDIA_TYPE_VIDEO,
312  },
313  { NULL }
314 };
315 
317  .name = "avgblur",
318  .description = NULL_IF_CONFIG_SMALL("Apply Average Blur filter."),
319  .priv_size = sizeof(AverageBlurContext),
320  .priv_class = &avgblur_class,
321  .uninit = uninit,
323  .inputs = avgblur_inputs,
324  .outputs = avgblur_outputs,
326 };
int plane
Definition: avisynth_c.h:422
#define NULL
Definition: coverity.c:32
#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.
static const AVOption avgblur_options[]
Definition: vf_avgblur.c:51
const char * desc
Definition: nvenc.c:60
static int query_formats(AVFilterContext *ctx)
Definition: vf_avgblur.c:226
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
#define HORIZONTAL_FILTER(name, type)
Definition: vf_avgblur.c:67
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:367
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:355
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
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125
const char * name
Pad name.
Definition: internal.h:60
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
AVOptions.
AVFILTER_DEFINE_CLASS(avgblur)
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:381
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:366
int height
Definition: vf_avgblur.c:61
#define height
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
int linesize
Definition: vf_avgblur.c:64
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:364
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:356
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:387
A filter pad used for either input or output.
Definition: internal.h:54
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:188
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
#define AVERROR(e)
Definition: error.h:43
uint8_t * ptr
Definition: vf_avgblur.c:63
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:163
#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 AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:389
const char * arg
Definition: jacosubdec.c:66
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:372
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:354
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:373
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
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:370
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:831
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:335
#define FFMIN(a, b)
Definition: common.h:96
int(* filter_vertically)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_avgblur.c:45
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
#define width
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_avgblur.c:252
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:386
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:350
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:369
#define FLAGS
Definition: vf_avgblur.c:49
#define VERTICAL_FILTER(name, type)
Definition: vf_avgblur.c:120
#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
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:536
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
AVFilter ff_vf_avgblur
Definition: vf_avgblur.c:316
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:351
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
static void averageiir2d(AVFilterContext *ctx, AVFrame *in, AVFrame *out, int plane)
Definition: vf_avgblur.c:208
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
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
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:368
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:363
#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
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_avgblur.c:291
int
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 OFFSET(x)
Definition: vf_avgblur.c:48
#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
avfilter_execute_func * execute
Definition: internal.h:155
int(* filter_horizontally)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_avgblur.c:44
static const AVFilterPad avgblur_outputs[]
Definition: vf_avgblur.c:308
static int config_input(AVFilterLink *inlink)
Definition: vf_avgblur.c:176
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
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
#define av_malloc_array(a, b)
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
static const AVFilterPad avgblur_inputs[]
Definition: vf_avgblur.c:298
internal API functions
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