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 "formats.h"
26 #include "internal.h"
27 #include "video.h"
28 
29 typedef struct DBlurContext {
30  const AVClass *class;
31 
32  float angle;
33  float radius;
34  int planes;
35 
36  float b0, b1, q, c, R3;
37 
38  int depth;
39  int planewidth[4];
40  int planeheight[4];
41  float *buffer;
42  int nb_planes;
43 } DBlurContext;
44 
45 #define OFFSET(x) offsetof(DBlurContext, x)
46 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
47 
48 static const AVOption dblur_options[] = {
49  { "angle", "set angle", OFFSET(angle), AV_OPT_TYPE_FLOAT, {.dbl=45}, 0.0, 360, FLAGS },
50  { "radius", "set radius", OFFSET(radius), AV_OPT_TYPE_FLOAT, {.dbl=5}, 1, 8192, FLAGS },
51  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
52  { NULL }
53 };
54 
56 
57 #define f(n, m) (dst[(n) * width + (m)])
58 
60 {
61  DBlurContext *s = ctx->priv;
62  const float b0 = s->b0;
63  const float b1 = s->b1;
64  const float q = s->q;
65  const float c = s->c;
66  float *dst = s->buffer;
67  float g;
68 
69  if (s->R3 > 0) {
70  for (int y = 1; y < height - 1; y++) {
71  g = q * f(y, 0) + c * f(y, 0);
72  for (int x = 0; x < width; x++) {
73  f(y, x) = b0 * f(y, x) + b1 * f(y - 1, x) + g;
74  g = q * f(y, x) + c * f(y - 1, x);
75  }
76  }
77 
78  for (int y = height - 2; y >= 0; y--) {
79  g = q * f(y, width - 1) + c * f(y, width - 1);
80  for (int x = width - 1; x >= 0; x--) {
81  f(y, x) = b0 * f(y, x) + b1 * f(y + 1, x) + g;
82  g = q * f(y, x) + c * f(y + 1, x);
83  }
84  }
85  } else {
86  for (int y = 1; y < height - 1; y++) {
87  g = q * f(y, width - 1) + c * f(y, width - 1);
88  for (int x = width - 1; x >= 0; x--) {
89  f(y, x) = b0 * f(y, x) + b1 * f(y - 1, x) + g;
90  g = q * f(y, x) + c * f(y - 1, x);
91  }
92  }
93 
94  for (int y = height - 2; y >= 0; y--) {
95  g = q * f(y, 0) + c * f(y, 0);
96  for (int x = 0; x < width; x++) {
97  f(y, x) = b0 * f(y, x) + b1 * f(y + 1, x) + g;
98  g = q * f(y, x) + c * f(y + 1, x);
99  }
100  }
101  }
102 
103  return 0;
104 }
105 
106 static void diriir2d(AVFilterContext *ctx, int plane)
107 {
108  DBlurContext *s = ctx->priv;
109  const int width = s->planewidth[plane];
110  const int height = s->planeheight[plane];
111 
113 }
114 
115 static const enum AVPixelFormat pix_fmts[] = {
135 };
136 
138 {
140  DBlurContext *s = inlink->dst->priv;
141 
142  s->depth = desc->comp[0].depth;
143  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
144  s->planewidth[0] = s->planewidth[3] = inlink->w;
145  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
146  s->planeheight[0] = s->planeheight[3] = inlink->h;
147 
148  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
149 
150  s->buffer = av_malloc_array(FFALIGN(inlink->w, 16), FFALIGN(inlink->h, 16) * sizeof(*s->buffer));
151  if (!s->buffer)
152  return AVERROR(ENOMEM);
153 
154  return 0;
155 }
156 
157 static void set_params(DBlurContext *s, float angle, float r)
158 {
159  float mu, nu, R1, R2, w1, w2;
160  float a0, a1, a2, a3;
161 
162  angle = angle * M_PI / 180.f;
163 
164  mu = cosf(angle);
165  nu = sinf(angle);
166  R1 = (mu * r) * (mu * r);
167  R2 = (nu * r) * (nu * r);
168  s->R3 = mu * nu * r * r;
169  w1 = sqrtf(0.25f + R1);
170  w2 = sqrtf(0.25f + R2);
171  a0 = (w1 + 0.5f) * (w2 + 0.5f) - fabsf(s->R3);
172  a1 = 0.5f + w2 - a0;
173  a2 = 0.5f + w1 - a0;
174  a3 = a0 - w1 - w2;
175  s->b0 = 1.f / a0;
176  s->b1 = -a2 / a0;
177  s->q = -a1 / a0;
178  s->c = -a3 / a0;
179 }
180 
182 {
183  AVFilterContext *ctx = inlink->dst;
184  DBlurContext *s = ctx->priv;
185  AVFilterLink *outlink = ctx->outputs[0];
186  AVFrame *out;
187  int plane;
188 
189  set_params(s, s->angle, s->radius);
190 
191  if (av_frame_is_writable(in)) {
192  out = in;
193  } else {
194  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
195  if (!out) {
196  av_frame_free(&in);
197  return AVERROR(ENOMEM);
198  }
200  }
201 
202  for (plane = 0; plane < s->nb_planes; plane++) {
203  const int height = s->planeheight[plane];
204  const int width = s->planewidth[plane];
205  float *bptr = s->buffer;
206  const uint8_t *src = in->data[plane];
207  const uint16_t *src16 = (const uint16_t *)in->data[plane];
208  uint8_t *dst = out->data[plane];
209  uint16_t *dst16 = (uint16_t *)out->data[plane];
210  int y, x;
211 
212  if (!(s->planes & (1 << plane))) {
213  if (out != in)
214  av_image_copy_plane(out->data[plane], out->linesize[plane],
215  in->data[plane], in->linesize[plane],
216  width * ((s->depth + 7) / 8), height);
217  continue;
218  }
219 
220  if (s->depth == 8) {
221  for (y = 0; y < height; y++) {
222  for (x = 0; x < width; x++) {
223  bptr[x] = src[x];
224  }
225  bptr += width;
226  src += in->linesize[plane];
227  }
228  } else {
229  for (y = 0; y < height; y++) {
230  for (x = 0; x < width; x++) {
231  bptr[x] = src16[x];
232  }
233  bptr += width;
234  src16 += in->linesize[plane] / 2;
235  }
236  }
237 
238  diriir2d(ctx, plane);
239 
240  bptr = s->buffer;
241  if (s->depth == 8) {
242  for (y = 0; y < height; y++) {
243  for (x = 0; x < width; x++) {
244  dst[x] = av_clip_uint8(lrintf(bptr[x]));
245  }
246  bptr += width;
247  dst += out->linesize[plane];
248  }
249  } else {
250  for (y = 0; y < height; y++) {
251  for (x = 0; x < width; x++) {
252  dst16[x] = av_clip_uintp2_c(lrintf(bptr[x]), s->depth);
253  }
254  bptr += width;
255  dst16 += out->linesize[plane] / 2;
256  }
257  }
258  }
259 
260  if (out != in)
261  av_frame_free(&in);
262  return ff_filter_frame(outlink, out);
263 }
264 
266 {
267  DBlurContext *s = ctx->priv;
268 
269  av_freep(&s->buffer);
270 }
271 
272 static const AVFilterPad dblur_inputs[] = {
273  {
274  .name = "default",
275  .type = AVMEDIA_TYPE_VIDEO,
276  .config_props = config_input,
277  .filter_frame = filter_frame,
278  },
279 };
280 
281 static const AVFilterPad dblur_outputs[] = {
282  {
283  .name = "default",
284  .type = AVMEDIA_TYPE_VIDEO,
285  },
286 };
287 
289  .name = "dblur",
290  .description = NULL_IF_CONFIG_SMALL("Apply Directional Blur filter."),
291  .priv_size = sizeof(DBlurContext),
292  .priv_class = &dblur_class,
293  .uninit = uninit,
298  .process_command = ff_filter_process_command,
299 };
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:98
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:447
DBlurContext::depth
int depth
Definition: vf_dblur.c:38
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:426
DBlurContext::planeheight
int planeheight[4]
Definition: vf_dblur.c:40
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
DBlurContext::nb_planes
int nb_planes
Definition: vf_dblur.c:42
r
const char * r
Definition: vf_curves.c:116
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:29
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:1018
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2660
dblur_inputs
static const AVFilterPad dblur_inputs[]
Definition: vf_dblur.c:272
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:171
DBlurContext::b0
float b0
Definition: vf_dblur.c:36
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:137
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:109
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:439
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:317
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:276
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:446
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:441
AVOption
AVOption.
Definition: opt.h:247
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:404
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
R1
#define R1
Definition: simple_idct.c:171
f
#define f(n, m)
Definition: vf_dblur.c:57
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:169
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:442
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:384
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:338
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
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:2700
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:438
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:422
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_dblur.c:181
b1
static double b1(void *priv, double x, double y)
Definition: vf_xfade.c:1703
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
cosf
#define cosf(x)
Definition: libm.h:78
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:420
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:448
DBlurContext::planes
int planes
Definition: vf_dblur.c:34
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:402
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:388
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:50
a1
#define a1
Definition: regdef.h:47
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:407
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
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:416
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:424
diriir2d
static void diriir2d(AVFilterContext *ctx, int plane)
Definition: vf_dblur.c:106
width
#define width
s
#define s(width, name)
Definition: cbs_vp9.c:257
OFFSET
#define OFFSET(x)
Definition: vf_dblur.c:45
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:425
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:417
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
g
const char * g
Definition: vf_curves.c:117
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_dblur.c:115
DBlurContext::angle
float angle
Definition: vf_dblur.c:32
DBlurContext::radius
float radius
Definition: vf_dblur.c:33
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:445
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:401
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:415
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:387
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
filter_horizontally
static int filter_horizontally(AVFilterContext *ctx, int width, int height)
Definition: vf_dblur.c:59
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:191
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
planes
static const struct @321 planes[]
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:385
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:423
dblur_outputs
static const AVFilterPad dblur_outputs[]
Definition: vf_dblur.c:281
set_params
static void set_params(DBlurContext *s, float angle, float r)
Definition: vf_dblur.c:157
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:537
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
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:405
sinf
#define sinf(x)
Definition: libm.h:419
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:419
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:36
FLAGS
#define FLAGS
Definition: vf_dblur.c:46
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_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:409
DBlurContext::c
float c
Definition: vf_dblur.c:36
R2
#define R2
Definition: simple_idct.c:172
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:411
DBlurContext::buffer
float * buffer
Definition: vf_dblur.c:41
ff_vf_dblur
const AVFilter ff_vf_dblur
Definition: vf_dblur.c:288
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:473
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:882
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:443
DBlurContext::b1
float b1
Definition: vf_dblur.c:36
a0
#define a0
Definition: regdef.h:46
M_PI
#define M_PI
Definition: mathematics.h:52
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:146
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:227
DBlurContext::planewidth
int planewidth[4]
Definition: vf_dblur.c:39
lrintf
#define lrintf(x)
Definition: libm_mips.h:72
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:421
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:100
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:56
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:403
AVFilter
Filter definition.
Definition: avfilter.h:165
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:440
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:408
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:413
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:444
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_dblur.c:265
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
avfilter.h
av_clip_uint8
#define av_clip_uint8
Definition: common.h:102
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:402
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
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: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
DBlurContext::q
float q
Definition: vf_dblur.c:36
dblur_options
static const AVOption dblur_options[]
Definition: vf_dblur.c:48
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:192
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
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:362
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
b0
static double b0(void *priv, double x, double y)
Definition: vf_xfade.c:1702
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:410
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:414
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:386
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:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:412