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/mem.h"
32 #include "libavutil/opt.h"
33 #include "libavutil/pixdesc.h"
34 #include "avfilter.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  return 0;
78 }
79 
80 static int filter_vertically(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
81 {
82  GBlurContext *s = ctx->priv;
83  ThreadData *td = arg;
84  const int height = td->height;
85  const int width = td->width;
86  const int slice_start = (width * jobnr ) / nb_jobs;
87  const int slice_end = (width * (jobnr+1)) / nb_jobs;
88  const float boundaryscale = s->boundaryscaleV;
89  const int steps = s->steps;
90  const float nu = s->nuV;
91  float *buffer = s->buffer;
92 
93  s->verti_slice(buffer, width, height, slice_start, slice_end,
94  steps, nu, boundaryscale);
95 
96  return 0;
97 }
98 
99 static int filter_postscale(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
100 {
101  GBlurContext *s = ctx->priv;
102  ThreadData *td = arg;
103  const float max = s->flt ? FLT_MAX : (1 << s->depth) - 1;
104  const float min = s->flt ? -FLT_MAX : 0.f;
105  const int height = td->height;
106  const int width = td->width;
107  const int awidth = FFALIGN(width, 64);
108  const int slice_start = (height * jobnr ) / nb_jobs;
109  const int slice_end = (height * (jobnr+1)) / nb_jobs;
110  const float postscale = s->postscale * s->postscaleV;
111  const int slice_size = slice_end - slice_start;
112 
113  s->postscale_slice(s->buffer + slice_start * awidth,
114  slice_size * awidth, postscale, min, max);
115 
116  return 0;
117 }
118 
119 static void gaussianiir2d(AVFilterContext *ctx, int plane)
120 {
121  GBlurContext *s = ctx->priv;
122  const int width = s->planewidth[plane];
123  const int height = s->planeheight[plane];
124  const int nb_threads = ff_filter_get_nb_threads(ctx);
125  ThreadData td;
126 
127  if (s->sigma < 0 || s->steps < 0)
128  return;
129 
130  td.width = width;
131  td.height = height;
133  NULL, FFMIN(height, nb_threads));
135  NULL, FFMIN(width, nb_threads));
137  NULL, FFMIN(width * height, nb_threads));
138 }
139 
140 static const enum AVPixelFormat pix_fmts[] = {
162 };
163 
165 {
166  GBlurContext *s = ctx->priv;
167 
168  av_freep(&s->buffer);
169  av_freep(&s->localbuf);
170 }
171 
173 {
175  GBlurContext *s = inlink->dst->priv;
176 
177  uninit(inlink->dst);
178 
179  s->depth = desc->comp[0].depth;
180  s->flt = !!(desc->flags & AV_PIX_FMT_FLAG_FLOAT);
181  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
182  s->planewidth[0] = s->planewidth[3] = inlink->w;
183  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
184  s->planeheight[0] = s->planeheight[3] = inlink->h;
185 
186  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
187 
188  s->buffer = av_malloc_array(FFALIGN(inlink->w, 64), FFALIGN(inlink->h, 64) * sizeof(*s->buffer));
189  if (!s->buffer)
190  return AVERROR(ENOMEM);
191 
192  if (s->sigmaV < 0) {
193  s->sigmaV = s->sigma;
194  }
195  ff_gblur_init(s);
196 
197  return 0;
198 }
199 
200 static void set_params(float sigma, int steps, float *postscale, float *boundaryscale, float *nu)
201 {
202  double dnu, lambda;
203 
204  lambda = (sigma * sigma) / (2.0 * steps);
205  dnu = (1.0 + 2.0 * lambda - sqrt(1.0 + 4.0 * lambda)) / (2.0 * lambda);
206  *postscale = pow(dnu / lambda, steps);
207  *boundaryscale = 1.0 / (1.0 - dnu);
208  *nu = (float)dnu;
209  if (!isnormal(*postscale))
210  *postscale = 1.f;
211  if (!isnormal(*boundaryscale))
212  *boundaryscale = 1.f;
213  if (!isnormal(*nu))
214  *nu = 0.f;
215 }
216 
218 {
219  AVFilterContext *ctx = inlink->dst;
220  GBlurContext *s = ctx->priv;
221  AVFilterLink *outlink = ctx->outputs[0];
222  AVFrame *out;
223  int plane;
224 
225  set_params(s->sigma, s->steps, &s->postscale, &s->boundaryscale, &s->nu);
226  set_params(s->sigmaV, s->steps, &s->postscaleV, &s->boundaryscaleV, &s->nuV);
227 
228  if (av_frame_is_writable(in)) {
229  out = in;
230  } else {
231  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
232  if (!out) {
233  av_frame_free(&in);
234  return AVERROR(ENOMEM);
235  }
237  }
238 
239  for (plane = 0; plane < s->nb_planes; plane++) {
240  const int height = s->planeheight[plane];
241  const int width = s->planewidth[plane];
242  float *bptr = s->buffer;
243  const uint8_t *src = in->data[plane];
244  const uint16_t *src16 = (const uint16_t *)in->data[plane];
245  uint8_t *dst = out->data[plane];
246  uint16_t *dst16 = (uint16_t *)out->data[plane];
247  int y, x;
248 
249  if (!(s->planes & (1 << plane))) {
250  if (out != in)
251  av_image_copy_plane(out->data[plane], out->linesize[plane],
252  in->data[plane], in->linesize[plane],
253  width * ((s->depth + 7) / 8), height);
254  continue;
255  }
256 
257  if (s->flt) {
258  av_image_copy_plane((uint8_t *)bptr, width * sizeof(float),
259  in->data[plane], in->linesize[plane],
260  width * sizeof(float), height);
261  } else if (s->depth == 8) {
262  for (y = 0; y < height; y++) {
263  for (x = 0; x < width; x++) {
264  bptr[x] = src[x];
265  }
266  bptr += width;
267  src += in->linesize[plane];
268  }
269  } else {
270  for (y = 0; y < height; y++) {
271  for (x = 0; x < width; x++) {
272  bptr[x] = src16[x];
273  }
274  bptr += width;
275  src16 += in->linesize[plane] / 2;
276  }
277  }
278 
279  gaussianiir2d(ctx, plane);
280 
281  bptr = s->buffer;
282  if (s->flt) {
283  av_image_copy_plane(out->data[plane], out->linesize[plane],
284  (uint8_t *)bptr, width * sizeof(float),
285  width * sizeof(float), height);
286  } else if (s->depth == 8) {
287  for (y = 0; y < height; y++) {
288  for (x = 0; x < width; x++)
289  dst[x] = lrintf(bptr[x]);
290  bptr += width;
291  dst += out->linesize[plane];
292  }
293  } else {
294  for (y = 0; y < height; y++) {
295  for (x = 0; x < width; x++)
296  dst16[x] = lrintf(bptr[x]);
297  bptr += width;
298  dst16 += out->linesize[plane] / 2;
299  }
300  }
301  }
302 
303  if (out != in)
304  av_frame_free(&in);
305  return ff_filter_frame(outlink, out);
306 }
307 
308 static const AVFilterPad gblur_inputs[] = {
309  {
310  .name = "default",
311  .type = AVMEDIA_TYPE_VIDEO,
312  .config_props = config_input,
313  .filter_frame = filter_frame,
314  },
315 };
316 
318  .name = "gblur",
319  .description = NULL_IF_CONFIG_SMALL("Apply Gaussian Blur filter."),
320  .priv_size = sizeof(GBlurContext),
321  .priv_class = &gblur_class,
322  .uninit = uninit,
327  .process_command = ff_filter_process_command,
328 };
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:112
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:522
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:501
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
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:55
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1015
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2965
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:162
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:160
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:514
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:374
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:521
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:516
AVOption
AVOption.
Definition: opt.h:357
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:478
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:80
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
max
#define max(a, b)
Definition: cuda_runtime.h:33
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:517
ThreadData::width
int width
Definition: vf_avgblur.c:65
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:458
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:395
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
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3005
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:513
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:496
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:494
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:523
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_gblur.c:164
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:476
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:462
OFFSET
#define OFFSET(x)
Definition: vf_gblur.c:40
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:481
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:283
gblur_inputs
static const AVFilterPad gblur_inputs[]
Definition: vf_gblur.c:308
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:490
ff_video_default_filterpad
const AVFilterPad ff_video_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_VIDEO.
Definition: video.c:37
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:86
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:498
float
float
Definition: af_crystalizer.c:121
planes
static const struct @417 planes[]
width
#define width
filter_postscale
static int filter_postscale(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_gblur.c:99
s
#define s(width, name)
Definition: cbs_vp9.c:198
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:499
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:108
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:491
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:59
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:1730
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:520
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:475
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:489
ctx
AVFormatContext * ctx
Definition: movenc.c:49
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:461
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:73
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:511
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
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:87
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:459
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:497
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:709
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_gblur.c:172
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:85
vf_gblur_init.h
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:479
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:493
postscale
static const FLOAT postscale[64]
Definition: faandct.c:55
f
f
Definition: af_crystalizer.c:121
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:94
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:508
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:483
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:485
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:645
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:887
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:174
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:518
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:147
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:248
lrintf
#define lrintf(x)
Definition: libm_mips.h:72
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_gblur.c:217
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:495
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:827
ThreadData
Used for passing data between threads.
Definition: dsddec.c:71
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:107
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:477
AVFilter
Filter definition.
Definition: avfilter.h:166
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:515
set_params
static void set_params(float sigma, int steps, float *postscale, float *boundaryscale, float *nu)
Definition: vf_gblur.c:200
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:482
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:487
ff_vf_gblur
const AVFilter ff_vf_gblur
Definition: vf_gblur.c:317
steps
static const int16_t steps[16]
Definition: misc4.c:30
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:72
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:519
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:245
avfilter.h
AV_PIX_FMT_GBRAPF32
#define AV_PIX_FMT_GBRAPF32
Definition: pixfmt.h:509
slice_start
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
Definition: dec.c:699
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:78
AVFilterContext
An instance of a filter.
Definition: avfilter.h:407
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
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:77
mem.h
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:119
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
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:80
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:419
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:79
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_gblur.c:140
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:484
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:488
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:460
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:134
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:173
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:486
min
float min
Definition: vorbis_enc_data.h:429