FFmpeg
vf_dblur.c
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1 /*
2  * Copyright (c) 2020 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/imgutils.h"
22 #include "libavutil/opt.h"
23 #include "libavutil/pixdesc.h"
24 #include "avfilter.h"
25 #include "internal.h"
26 #include "video.h"
27 
28 typedef struct DBlurContext {
29  const AVClass *class;
30 
31  float angle;
32  float radius;
33  int planes;
34 
35  float b0, b1, q, c, R3;
36 
37  int depth;
38  int planewidth[4];
39  int planeheight[4];
40  float *buffer;
41  int nb_planes;
42 } DBlurContext;
43 
44 #define OFFSET(x) offsetof(DBlurContext, x)
45 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
46 
47 static const AVOption dblur_options[] = {
48  { "angle", "set angle", OFFSET(angle), AV_OPT_TYPE_FLOAT, {.dbl=45}, 0.0, 360, FLAGS },
49  { "radius", "set radius", OFFSET(radius), AV_OPT_TYPE_FLOAT, {.dbl=5}, 0, 8192, FLAGS },
50  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
51  { NULL }
52 };
53 
55 
56 #define f(n, m) (dst[(n) * width + (m)])
57 
59 {
60  DBlurContext *s = ctx->priv;
61  const float b0 = s->b0;
62  const float b1 = s->b1;
63  const float q = s->q;
64  const float c = s->c;
65  float *dst = s->buffer;
66  float g;
67 
68  if (s->R3 > 0) {
69  for (int y = 1; y < height; y++) {
70  g = q * f(y, 0) + c * f(y, 0);
71  for (int x = 0; x < width; x++) {
72  f(y, x) = b0 * f(y, x) + b1 * f(y - 1, x) + g;
73  g = q * f(y, x) + c * f(y - 1, x);
74  }
75  }
76 
77  for (int y = height - 2; y >= 0; y--) {
78  g = q * f(y, width - 1) + c * f(y, width - 1);
79  for (int x = width - 1; x >= 0; x--) {
80  f(y, x) = b0 * f(y, x) + b1 * f(y + 1, x) + g;
81  g = q * f(y, x) + c * f(y + 1, x);
82  }
83  }
84  } else {
85  for (int y = 1; y < height; y++) {
86  g = q * f(y, width - 1) + c * f(y, width - 1);
87  for (int x = width - 1; x >= 0; x--) {
88  f(y, x) = b0 * f(y, x) + b1 * f(y - 1, x) + g;
89  g = q * f(y, x) + c * f(y - 1, x);
90  }
91  }
92 
93  for (int y = height - 2; y >= 0; y--) {
94  g = q * f(y, 0) + c * f(y, 0);
95  for (int x = 0; x < width; x++) {
96  f(y, x) = b0 * f(y, x) + b1 * f(y + 1, x) + g;
97  g = q * f(y, x) + c * f(y + 1, x);
98  }
99  }
100  }
101 
102  return 0;
103 }
104 
105 static void diriir2d(AVFilterContext *ctx, int plane)
106 {
107  DBlurContext *s = ctx->priv;
108  const int width = s->planewidth[plane];
109  const int height = s->planeheight[plane];
110 
112 }
113 
114 static const enum AVPixelFormat pix_fmts[] = {
135 };
136 
138 {
139  DBlurContext *s = ctx->priv;
140 
141  av_freep(&s->buffer);
142 }
143 
145 {
147  DBlurContext *s = inlink->dst->priv;
148 
149  uninit(inlink->dst);
150 
151  s->depth = desc->comp[0].depth;
152  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
153  s->planewidth[0] = s->planewidth[3] = inlink->w;
154  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
155  s->planeheight[0] = s->planeheight[3] = inlink->h;
156 
157  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
158 
159  s->buffer = av_malloc_array(FFALIGN(inlink->w, 16), FFALIGN(inlink->h, 16) * sizeof(*s->buffer));
160  if (!s->buffer)
161  return AVERROR(ENOMEM);
162 
163  return 0;
164 }
165 
166 static void set_params(DBlurContext *s, float angle, float r)
167 {
168  float mu, nu, R1, R2, w1, w2;
169  float a0, a1, a2, a3;
170 
171  angle = angle * M_PI / 180.f;
172 
173  mu = cosf(angle);
174  nu = sinf(angle);
175  R1 = (mu * r) * (mu * r);
176  R2 = (nu * r) * (nu * r);
177  s->R3 = mu * nu * r * r;
178  w1 = sqrtf(0.25f + R1);
179  w2 = sqrtf(0.25f + R2);
180  a0 = (w1 + 0.5f) * (w2 + 0.5f) - fabsf(s->R3);
181  a1 = 0.5f + w2 - a0;
182  a2 = 0.5f + w1 - a0;
183  a3 = a0 - w1 - w2;
184  s->b0 = 1.f / a0;
185  s->b1 = -a2 / a0;
186  s->q = -a1 / a0;
187  s->c = -a3 / a0;
188 }
189 
191 {
192  AVFilterContext *ctx = inlink->dst;
193  DBlurContext *s = ctx->priv;
194  AVFilterLink *outlink = ctx->outputs[0];
195  AVFrame *out;
196  int plane;
197 
198  set_params(s, s->angle, s->radius);
199 
200  if (av_frame_is_writable(in)) {
201  out = in;
202  } else {
203  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
204  if (!out) {
205  av_frame_free(&in);
206  return AVERROR(ENOMEM);
207  }
209  }
210 
211  for (plane = 0; plane < s->nb_planes; plane++) {
212  const int height = s->planeheight[plane];
213  const int width = s->planewidth[plane];
214  float *bptr = s->buffer;
215  const uint8_t *src = in->data[plane];
216  const uint16_t *src16 = (const uint16_t *)in->data[plane];
217  const float *src32 = (const float *)in->data[plane];
218  uint8_t *dst = out->data[plane];
219  uint16_t *dst16 = (uint16_t *)out->data[plane];
220  float *dst32 = (float *)out->data[plane];
221  int y, x;
222 
223  if (!(s->planes & (1 << plane))) {
224  if (out != in)
225  av_image_copy_plane(out->data[plane], out->linesize[plane],
226  in->data[plane], in->linesize[plane],
227  width * ((s->depth + 7) / 8), height);
228  continue;
229  }
230 
231  if (s->depth == 8) {
232  for (y = 0; y < height; y++) {
233  for (x = 0; x < width; x++) {
234  bptr[x] = src[x];
235  }
236  bptr += width;
237  src += in->linesize[plane];
238  }
239  } else if (s->depth <= 16) {
240  for (y = 0; y < height; y++) {
241  for (x = 0; x < width; x++) {
242  bptr[x] = src16[x];
243  }
244  bptr += width;
245  src16 += in->linesize[plane] / 2;
246  }
247  } else {
248  for (y = 0; y < height; y++) {
249  for (x = 0; x < width; x++) {
250  memcpy(bptr, src32, width * sizeof(float));
251  }
252  bptr += width;
253  src32 += in->linesize[plane] / 4;
254  }
255  }
256 
257  diriir2d(ctx, plane);
258 
259  bptr = s->buffer;
260  if (s->depth == 8) {
261  for (y = 0; y < height; y++) {
262  for (x = 0; x < width; x++) {
263  dst[x] = av_clip_uint8(lrintf(bptr[x]));
264  }
265  bptr += width;
266  dst += out->linesize[plane];
267  }
268  } else if (s->depth <= 16) {
269  for (y = 0; y < height; y++) {
270  for (x = 0; x < width; x++) {
271  dst16[x] = av_clip_uintp2_c(lrintf(bptr[x]), s->depth);
272  }
273  bptr += width;
274  dst16 += out->linesize[plane] / 2;
275  }
276  } else {
277  for (y = 0; y < height; y++) {
278  for (x = 0; x < width; x++) {
279  memcpy(dst32, bptr, width * sizeof(float));
280  }
281  bptr += width;
282  dst32 += out->linesize[plane] / 4;
283  }
284  }
285  }
286 
287  if (out != in)
288  av_frame_free(&in);
289  return ff_filter_frame(outlink, out);
290 }
291 
292 static const AVFilterPad dblur_inputs[] = {
293  {
294  .name = "default",
295  .type = AVMEDIA_TYPE_VIDEO,
296  .config_props = config_input,
297  .filter_frame = filter_frame,
298  },
299 };
300 
302  .name = "dblur",
303  .description = NULL_IF_CONFIG_SMALL("Apply Directional Blur filter."),
304  .priv_size = sizeof(DBlurContext),
305  .priv_class = &dblur_class,
306  .uninit = uninit,
311  .process_command = ff_filter_process_command,
312 };
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:526
DBlurContext::depth
int depth
Definition: vf_dblur.c:37
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:505
DBlurContext::planeheight
int planeheight[4]
Definition: vf_dblur.c:39
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
DBlurContext::nb_planes
int nb_planes
Definition: vf_dblur.c:41
r
const char * r
Definition: vf_curves.c:126
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
DBlurContext
Definition: vf_dblur.c:28
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:1007
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2968
dblur_inputs
static const AVFilterPad dblur_inputs[]
Definition: vf_dblur.c:292
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:162
DBlurContext::b0
float b0
Definition: vf_dblur.c:35
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
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_dblur.c:144
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:100
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:518
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:340
pixdesc.h
av_clip_uintp2_c
static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
Clip a signed integer to an unsigned power of two range.
Definition: common.h:278
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:525
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:520
AVOption
AVOption.
Definition: opt.h:294
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:482
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
R1
#define R1
Definition: simple_idct.c:171
f
#define f(n, m)
Definition: vf_dblur.c:56
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:521
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:462
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:361
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
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(dblur)
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3008
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:517
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:500
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_dblur.c:190
b1
static double b1(void *priv, double x, double y)
Definition: vf_xfade.c:2035
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
cosf
#define cosf(x)
Definition: libm.h:78
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:498
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:527
DBlurContext::planes
int planes
Definition: vf_dblur.c:33
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:480
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:466
fabsf
static __device__ float fabsf(float a)
Definition: cuda_runtime.h:181
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
a1
#define a1
Definition: regdef.h:47
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:485
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
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:494
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
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:502
diriir2d
static void diriir2d(AVFilterContext *ctx, int plane)
Definition: vf_dblur.c:105
width
#define width
s
#define s(width, name)
Definition: cbs_vp9.c:198
OFFSET
#define OFFSET(x)
Definition: vf_dblur.c:44
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:503
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:495
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
g
const char * g
Definition: vf_curves.c:127
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_dblur.c:114
DBlurContext::angle
float angle
Definition: vf_dblur.c:31
DBlurContext::radius
float radius
Definition: vf_dblur.c:32
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:524
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:479
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:493
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:465
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
filter_horizontally
static int filter_horizontally(AVFilterContext *ctx, int width, int height)
Definition: vf_dblur.c:58
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:515
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
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:463
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:501
set_params
static void set_params(DBlurContext *s, float angle, float r)
Definition: vf_dblur.c:166
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:736
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
sqrtf
static __device__ float sqrtf(float a)
Definition: cuda_runtime.h:184
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:483
sinf
#define sinf(x)
Definition: libm.h:419
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:497
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
DBlurContext::R3
float R3
Definition: vf_dblur.c:35
planes
static const struct @378 planes[]
FLAGS
#define FLAGS
Definition: vf_dblur.c:45
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:106
AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRPF32
Definition: pixfmt.h:512
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:487
DBlurContext::c
float c
Definition: vf_dblur.c:35
R2
#define R2
Definition: simple_idct.c:172
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:489
DBlurContext::buffer
float * buffer
Definition: vf_dblur.c:40
ff_vf_dblur
const AVFilter ff_vf_dblur
Definition: vf_dblur.c:301
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:666
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:879
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:522
DBlurContext::b1
float b1
Definition: vf_dblur.c:35
a0
#define a0
Definition: regdef.h:46
M_PI
#define M_PI
Definition: mathematics.h:67
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:228
DBlurContext::planewidth
int planewidth[4]
Definition: vf_dblur.c:38
lrintf
#define lrintf(x)
Definition: libm_mips.h:72
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:499
a2
#define a2
Definition: regdef.h:48
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:481
AVFilter
Filter definition.
Definition: avfilter.h:166
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:519
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:486
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:491
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:523
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_dblur.c:137
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:513
av_clip_uint8
#define av_clip_uint8
Definition: common.h:104
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:409
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
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:77
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
DBlurContext::q
float q
Definition: vf_dblur.c:35
dblur_options
static const AVOption dblur_options[]
Definition: vf_dblur.c:47
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
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:385
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
b0
static double b0(void *priv, double x, double y)
Definition: vf_xfade.c:2034
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:488
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:492
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:464
a3
#define a3
Definition: regdef.h:49
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:490