FFmpeg
vf_gblur.c
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1 /*
2  * Copyright (c) 2011 Pascal Getreuer
3  * Copyright (c) 2016 Paul B Mahol
4  *
5  * Redistribution and use in source and binary forms, with or without modification,
6  * are permitted provided that the following conditions are met:
7  *
8  * * Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * * Redistributions in binary form must reproduce the above
11  * copyright notice, this list of conditions and the following
12  * disclaimer in the documentation and/or other materials provided
13  * with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19  * HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
22  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
23  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
24  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #include <float.h>
29 
30 #include "libavutil/imgutils.h"
31 #include "libavutil/opt.h"
32 #include "libavutil/pixdesc.h"
33 #include "avfilter.h"
34 #include "formats.h"
35 #include "gblur.h"
36 #include "internal.h"
37 #include "vf_gblur_init.h"
38 #include "video.h"
39 
40 #define OFFSET(x) offsetof(GBlurContext, x)
41 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
42 
43 static const AVOption gblur_options[] = {
44  { "sigma", "set sigma", OFFSET(sigma), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0.0, 1024, FLAGS },
45  { "steps", "set number of steps", OFFSET(steps), AV_OPT_TYPE_INT, {.i64=1}, 1, 6, FLAGS },
46  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
47  { "sigmaV", "set vertical sigma", OFFSET(sigmaV), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 1024, FLAGS },
48  { NULL }
49 };
50 
52 
53 typedef struct ThreadData {
54  int height;
55  int width;
56 } ThreadData;
57 
58 static int filter_horizontally(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
59 {
60  GBlurContext *s = ctx->priv;
61  ThreadData *td = arg;
62  const int height = td->height;
63  const int width = td->width;
64  const int slice_start = (height * jobnr ) / nb_jobs;
65  const int slice_end = (height * (jobnr+1)) / nb_jobs;
66  const float boundaryscale = s->boundaryscale;
67  const int steps = s->steps;
68  const float nu = s->nu;
69  float *buffer = s->buffer;
70  float *localbuf = NULL;
71 
72  if (s->localbuf)
73  localbuf = s->localbuf + s->stride * width * slice_start;
74 
75  s->horiz_slice(buffer + width * slice_start, width, slice_end - slice_start,
76  steps, nu, boundaryscale, localbuf);
77  emms_c();
78  return 0;
79 }
80 
81 static int filter_vertically(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
82 {
83  GBlurContext *s = ctx->priv;
84  ThreadData *td = arg;
85  const int height = td->height;
86  const int width = td->width;
87  const int slice_start = (width * jobnr ) / nb_jobs;
88  const int slice_end = (width * (jobnr+1)) / nb_jobs;
89  const float boundaryscale = s->boundaryscaleV;
90  const int steps = s->steps;
91  const float nu = s->nuV;
92  float *buffer = s->buffer;
93 
94  s->verti_slice(buffer, width, height, slice_start, slice_end,
95  steps, nu, boundaryscale);
96 
97  return 0;
98 }
99 
100 static int filter_postscale(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
101 {
102  GBlurContext *s = ctx->priv;
103  ThreadData *td = arg;
104  const float max = s->flt ? FLT_MAX : (1 << s->depth) - 1;
105  const float min = s->flt ? -FLT_MAX : 0.f;
106  const int height = td->height;
107  const int width = td->width;
108  const int awidth = FFALIGN(width, 64);
109  const int slice_start = (height * jobnr ) / nb_jobs;
110  const int slice_end = (height * (jobnr+1)) / nb_jobs;
111  const float postscale = s->postscale * s->postscaleV;
112  const int slice_size = slice_end - slice_start;
113 
114  s->postscale_slice(s->buffer + slice_start * awidth,
115  slice_size * awidth, postscale, min, max);
116 
117  return 0;
118 }
119 
120 static void gaussianiir2d(AVFilterContext *ctx, int plane)
121 {
122  GBlurContext *s = ctx->priv;
123  const int width = s->planewidth[plane];
124  const int height = s->planeheight[plane];
125  const int nb_threads = ff_filter_get_nb_threads(ctx);
126  ThreadData td;
127 
128  if (s->sigma <= 0 || s->steps < 0)
129  return;
130 
131  td.width = width;
132  td.height = height;
134  NULL, FFMIN(height, nb_threads));
136  NULL, FFMIN(width, nb_threads));
138  NULL, FFMIN(width * height, nb_threads));
139 }
140 
141 static const enum AVPixelFormat pix_fmts[] = {
163 };
164 
166 {
167  GBlurContext *s = ctx->priv;
168 
169  av_freep(&s->buffer);
170  av_freep(&s->localbuf);
171 }
172 
174 {
176  GBlurContext *s = inlink->dst->priv;
177 
178  uninit(inlink->dst);
179 
180  s->depth = desc->comp[0].depth;
181  s->flt = !!(desc->flags & AV_PIX_FMT_FLAG_FLOAT);
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(FFALIGN(inlink->w, 64), FFALIGN(inlink->h, 64) * sizeof(*s->buffer));
190  if (!s->buffer)
191  return AVERROR(ENOMEM);
192 
193  if (s->sigmaV < 0) {
194  s->sigmaV = s->sigma;
195  }
196  ff_gblur_init(s);
197 
198  return 0;
199 }
200 
201 static void set_params(float sigma, int steps, float *postscale, float *boundaryscale, float *nu)
202 {
203  double dnu, lambda;
204 
205  lambda = (sigma * sigma) / (2.0 * steps);
206  dnu = (1.0 + 2.0 * lambda - sqrt(1.0 + 4.0 * lambda)) / (2.0 * lambda);
207  *postscale = pow(dnu / lambda, steps);
208  *boundaryscale = 1.0 / (1.0 - dnu);
209  *nu = (float)dnu;
210 }
211 
213 {
214  AVFilterContext *ctx = inlink->dst;
215  GBlurContext *s = ctx->priv;
216  AVFilterLink *outlink = ctx->outputs[0];
217  AVFrame *out;
218  int plane;
219 
220  set_params(s->sigma, s->steps, &s->postscale, &s->boundaryscale, &s->nu);
221  set_params(s->sigmaV, s->steps, &s->postscaleV, &s->boundaryscaleV, &s->nuV);
222 
223  if (av_frame_is_writable(in)) {
224  out = in;
225  } else {
226  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
227  if (!out) {
228  av_frame_free(&in);
229  return AVERROR(ENOMEM);
230  }
232  }
233 
234  for (plane = 0; plane < s->nb_planes; plane++) {
235  const int height = s->planeheight[plane];
236  const int width = s->planewidth[plane];
237  float *bptr = s->buffer;
238  const uint8_t *src = in->data[plane];
239  const uint16_t *src16 = (const uint16_t *)in->data[plane];
240  uint8_t *dst = out->data[plane];
241  uint16_t *dst16 = (uint16_t *)out->data[plane];
242  int y, x;
243 
244  if (!s->sigma || !(s->planes & (1 << plane))) {
245  if (out != in)
246  av_image_copy_plane(out->data[plane], out->linesize[plane],
247  in->data[plane], in->linesize[plane],
248  width * ((s->depth + 7) / 8), height);
249  continue;
250  }
251 
252  if (s->flt) {
253  av_image_copy_plane((uint8_t *)bptr, width * sizeof(float),
254  in->data[plane], in->linesize[plane],
255  width * sizeof(float), height);
256  } else if (s->depth == 8) {
257  for (y = 0; y < height; y++) {
258  for (x = 0; x < width; x++) {
259  bptr[x] = src[x];
260  }
261  bptr += width;
262  src += in->linesize[plane];
263  }
264  } else {
265  for (y = 0; y < height; y++) {
266  for (x = 0; x < width; x++) {
267  bptr[x] = src16[x];
268  }
269  bptr += width;
270  src16 += in->linesize[plane] / 2;
271  }
272  }
273 
274  gaussianiir2d(ctx, plane);
275 
276  bptr = s->buffer;
277  if (s->flt) {
278  av_image_copy_plane(out->data[plane], out->linesize[plane],
279  (uint8_t *)bptr, width * sizeof(float),
280  width * sizeof(float), height);
281  } else if (s->depth == 8) {
282  for (y = 0; y < height; y++) {
283  for (x = 0; x < width; x++) {
284  dst[x] = bptr[x];
285  }
286  bptr += width;
287  dst += out->linesize[plane];
288  }
289  } else {
290  for (y = 0; y < height; y++) {
291  for (x = 0; x < width; x++) {
292  dst16[x] = bptr[x];
293  }
294  bptr += width;
295  dst16 += out->linesize[plane] / 2;
296  }
297  }
298  }
299 
300  if (out != in)
301  av_frame_free(&in);
302  return ff_filter_frame(outlink, out);
303 }
304 
305 static const AVFilterPad gblur_inputs[] = {
306  {
307  .name = "default",
308  .type = AVMEDIA_TYPE_VIDEO,
309  .config_props = config_input,
310  .filter_frame = filter_frame,
311  },
312 };
313 
314 static const AVFilterPad gblur_outputs[] = {
315  {
316  .name = "default",
317  .type = AVMEDIA_TYPE_VIDEO,
318  },
319 };
320 
322  .name = "gblur",
323  .description = NULL_IF_CONFIG_SMALL("Apply Gaussian Blur filter."),
324  .priv_size = sizeof(GBlurContext),
325  .priv_class = &gblur_class,
326  .uninit = uninit,
331  .process_command = ff_filter_process_command,
332 };
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:101
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:449
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:428
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
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
out
FILE * out
Definition: movenc.c:54
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:999
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2662
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:170
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_FLAG_FLOAT
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
Definition: pixdesc.h:158
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:111
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:441
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:448
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:443
planes
static const struct @327 planes[]
AVOption
AVOption.
Definition: opt.h:251
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:406
filter_horizontally
static int filter_horizontally(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_gblur.c:58
float.h
filter_vertically
static int filter_vertically(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_gblur.c:81
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:175
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:444
ThreadData::width
int width
Definition: vf_avgblur.c:65
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:386
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:346
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:374
formats.h
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2702
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:440
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:424
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:422
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:450
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_gblur.c:165
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:404
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:390
OFFSET
#define OFFSET(x)
Definition: vf_gblur.c:40
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:409
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:248
gblur_inputs
static const AVFilterPad gblur_inputs[]
Definition: vf_gblur.c:305
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:418
gblur.h
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:426
float
float
Definition: af_crystalizer.c:122
width
#define width
filter_postscale
static int filter_postscale(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_gblur.c:100
s
#define s(width, name)
Definition: cbs_vp9.c:256
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:427
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:419
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:50
ThreadData::height
int height
Definition: vf_avgblur.c:64
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2013
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:447
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:403
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:417
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:389
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_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:438
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
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:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:387
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:425
NULL
#define NULL
Definition: coverity.c:32
FLAGS
#define FLAGS
Definition: vf_gblur.c:41
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:596
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_gblur.c:173
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
vf_gblur_init.h
gblur_outputs
static const AVFilterPad gblur_outputs[]
Definition: vf_gblur.c:314
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:407
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:421
postscale
static const FLOAT postscale[64]
Definition: faandct.c:54
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_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:435
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:411
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:413
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:523
gblur_options
static const AVOption gblur_options[]
Definition: vf_gblur.c:43
ff_filter_process_command
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
Definition: avfilter.c:863
height
#define height
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:167
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:445
internal.h
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#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:152
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_gblur.c:212
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:31
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:423
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:783
ThreadData
Used for passing data between threads.
Definition: dsddec.c:68
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
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
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:405
AVFilter
Filter definition.
Definition: avfilter.h:171
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(gblur)
ff_gblur_init
static av_unused void ff_gblur_init(GBlurContext *s)
Definition: vf_gblur_init.h:112
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:442
set_params
static void set_params(float sigma, int steps, float *postscale, float *boundaryscale, float *nu)
Definition: vf_gblur.c:201
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:410
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:415
ff_vf_gblur
const AVFilter ff_vf_gblur
Definition: vf_gblur.c:321
buffer
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
Definition: filter_design.txt:49
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:446
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:436
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:408
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
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:127
desc
const char * desc
Definition: libsvtav1.c:83
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
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
gaussianiir2d
static void gaussianiir2d(AVFilterContext *ctx, int plane)
Definition: vf_gblur.c:120
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
GBlurContext
Definition: gblur.h:32
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
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
imgutils.h
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:370
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
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_gblur.c:141
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:412
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:416
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:388
ff_filter_execute
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: internal.h:142
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:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:414
min
float min
Definition: vorbis_enc_data.h:429