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  void (*horiz_slice)(float *buffer, int width, int height, int steps, float nu, float bscale);
44 } DBlurContext;
45 
46 #define OFFSET(x) offsetof(DBlurContext, x)
47 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
48 
49 static const AVOption dblur_options[] = {
50  { "angle", "set angle", OFFSET(angle), AV_OPT_TYPE_FLOAT, {.dbl=45}, 0.0, 360, FLAGS },
51  { "radius", "set radius", OFFSET(radius), AV_OPT_TYPE_FLOAT, {.dbl=5}, 1, 8192, FLAGS },
52  { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
53  { NULL }
54 };
55 
57 
58 #define f(n, m) (dst[(n) * width + (m)])
59 
61 {
62  DBlurContext *s = ctx->priv;
63  const float b0 = s->b0;
64  const float b1 = s->b1;
65  const float q = s->q;
66  const float c = s->c;
67  float *dst = s->buffer;
68  float g;
69 
70  if (s->R3 > 0) {
71  for (int y = 1; y < height - 1; y++) {
72  g = q * f(0, 0) + c * f(0, 0);
73  for (int x = 0; x < width; x++) {
74  f(y, x) = b0 * f(y, x) + b1 * f(y - 1, x) + g;
75  g = q * f(y, x) + c * f(y - 1, x);
76  }
77  }
78 
79  for (int y = height - 2; y >= 0; y--) {
80  g = q * f(y, width - 1) + c * f(y, width - 1);
81  for (int x = width - 1; x >= 0; x--) {
82  f(y, x) = b0 * f(y, x) + b1 * f(y + 1, x) + g;
83  g = q * f(y, x) + c * f(y + 1, x);
84  }
85  }
86  } else {
87  for (int y = 1; y < height - 1; y++) {
88  g = q * f(0, width - 1) + c * f(0, width - 1);
89  for (int x = width - 1; x >= 0; x--) {
90  f(y, x) = b0 * f(y, x) + b1 * f(y - 1, x) + g;
91  g = q * f(y, x) + c * f(y - 1, x);
92  }
93  }
94 
95  for (int y = height - 2; y >= 0; y--) {
96  g = q * f(y, 0) + c * f(y, 0);
97  for (int x = 0; x < width; x++) {
98  f(y, x) = b0 * f(y, x) + b1 * f(y + 1, x) + g;
99  g = q * f(y, x) + c * f(y + 1, x);
100  }
101  }
102  }
103 
104  return 0;
105 }
106 
107 static void diriir2d(AVFilterContext *ctx, int plane)
108 {
109  DBlurContext *s = ctx->priv;
110  const int width = s->planewidth[plane];
111  const int height = s->planeheight[plane];
112 
114 }
115 
117 {
118  static const enum AVPixelFormat pix_fmts[] = {
138  };
139 
141 }
142 
144 {
146  DBlurContext *s = inlink->dst->priv;
147 
148  s->depth = desc->comp[0].depth;
149  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
150  s->planewidth[0] = s->planewidth[3] = inlink->w;
151  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
152  s->planeheight[0] = s->planeheight[3] = inlink->h;
153 
154  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
155 
156  s->buffer = av_malloc_array(FFALIGN(inlink->w, 16), FFALIGN(inlink->h, 16) * sizeof(*s->buffer));
157  if (!s->buffer)
158  return AVERROR(ENOMEM);
159 
160  return 0;
161 }
162 
163 static void set_params(DBlurContext *s, float angle, float r)
164 {
165  float mu, nu, R1, R2, w1, w2;
166  float a0, a1, a2, a3;
167 
168  angle = angle * M_PI / 180.f;
169 
170  mu = cosf(angle);
171  nu = sinf(angle);
172  R1 = (mu * r) * (mu * r);
173  R2 = (nu * r) * (nu * r);
174  s->R3 = mu * nu * r * r;
175  w1 = sqrtf(0.25f + R1);
176  w2 = sqrtf(0.25f + R2);
177  a0 = (w1 + 0.5f) * (w2 + 0.5f) - fabsf(s->R3);
178  a1 = 0.5f + w2 - a0;
179  a2 = 0.5f + w1 - a0;
180  a3 = a0 - w1 - w2;
181  s->b0 = 1.f / a0;
182  s->b1 = -a2 / a0;
183  s->q = -a1 / a0;
184  s->c = -a3 / a0;
185 }
186 
188 {
189  AVFilterContext *ctx = inlink->dst;
190  DBlurContext *s = ctx->priv;
191  AVFilterLink *outlink = ctx->outputs[0];
192  AVFrame *out;
193  int plane;
194 
195  set_params(s, s->angle, s->radius);
196 
197  if (av_frame_is_writable(in)) {
198  out = in;
199  } else {
200  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
201  if (!out) {
202  av_frame_free(&in);
203  return AVERROR(ENOMEM);
204  }
206  }
207 
208  for (plane = 0; plane < s->nb_planes; plane++) {
209  const int height = s->planeheight[plane];
210  const int width = s->planewidth[plane];
211  float *bptr = s->buffer;
212  const uint8_t *src = in->data[plane];
213  const uint16_t *src16 = (const uint16_t *)in->data[plane];
214  uint8_t *dst = out->data[plane];
215  uint16_t *dst16 = (uint16_t *)out->data[plane];
216  int y, x;
217 
218  if (!(s->planes & (1 << plane))) {
219  if (out != in)
220  av_image_copy_plane(out->data[plane], out->linesize[plane],
221  in->data[plane], in->linesize[plane],
222  width * ((s->depth + 7) / 8), height);
223  continue;
224  }
225 
226  if (s->depth == 8) {
227  for (y = 0; y < height; y++) {
228  for (x = 0; x < width; x++) {
229  bptr[x] = src[x];
230  }
231  bptr += width;
232  src += in->linesize[plane];
233  }
234  } else {
235  for (y = 0; y < height; y++) {
236  for (x = 0; x < width; x++) {
237  bptr[x] = src16[x];
238  }
239  bptr += width;
240  src16 += in->linesize[plane] / 2;
241  }
242  }
243 
244  diriir2d(ctx, plane);
245 
246  bptr = s->buffer;
247  if (s->depth == 8) {
248  for (y = 0; y < height; y++) {
249  for (x = 0; x < width; x++) {
250  dst[x] = bptr[x];
251  }
252  bptr += width;
253  dst += out->linesize[plane];
254  }
255  } else {
256  for (y = 0; y < height; y++) {
257  for (x = 0; x < width; x++) {
258  dst16[x] = bptr[x];
259  }
260  bptr += width;
261  dst16 += out->linesize[plane] / 2;
262  }
263  }
264  }
265 
266  if (out != in)
267  av_frame_free(&in);
268  return ff_filter_frame(outlink, out);
269 }
270 
272 {
273  DBlurContext *s = ctx->priv;
274 
275  av_freep(&s->buffer);
276 }
277 
278 static const AVFilterPad dblur_inputs[] = {
279  {
280  .name = "default",
281  .type = AVMEDIA_TYPE_VIDEO,
282  .config_props = config_input,
283  .filter_frame = filter_frame,
284  },
285  { NULL }
286 };
287 
288 static const AVFilterPad dblur_outputs[] = {
289  {
290  .name = "default",
291  .type = AVMEDIA_TYPE_VIDEO,
292  },
293  { NULL }
294 };
295 
297  .name = "dblur",
298  .description = NULL_IF_CONFIG_SMALL("Apply Directional Blur filter."),
299  .priv_size = sizeof(DBlurContext),
300  .priv_class = &dblur_class,
301  .uninit = uninit,
303  .inputs = dblur_inputs,
307 };
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:99
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:440
DBlurContext::depth
int depth
Definition: vf_dblur.c:38
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:419
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:114
ff_vf_dblur
AVFilter ff_vf_dblur
Definition: vf_dblur.c:296
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
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:300
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:1075
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2549
dblur_inputs
static const AVFilterPad dblur_inputs[]
Definition: vf_dblur.c:278
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:143
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:432
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:439
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:434
AVOption
AVOption.
Definition: opt.h:246
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:397
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
DBlurContext::horiz_slice
void(* horiz_slice)(float *buffer, int width, int height, int steps, float nu, float bscale)
Definition: vf_dblur.c:43
R1
#define R1
Definition: simple_idct.c:172
f
#define f(n, m)
Definition: vf_dblur.c:58
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:148
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:435
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:377
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:338
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:2589
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:431
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:415
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_dblur.c:187
b1
static double b1(void *priv, double x, double y)
Definition: vf_xfade.c:1332
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
cosf
#define cosf(x)
Definition: libm.h:78
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:413
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:441
DBlurContext::planes
int planes
Definition: vf_dblur.c:34
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:395
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:381
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
a1
#define a1
Definition: regdef.h:47
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:400
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:258
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:409
ff_set_common_formats
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:605
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:417
diriir2d
static void diriir2d(AVFilterContext *ctx, int plane)
Definition: vf_dblur.c:107
width
#define width
s
#define s(width, name)
Definition: cbs_vp9.c:257
OFFSET
#define OFFSET(x)
Definition: vf_dblur.c:46
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:418
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
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_dblur.c:116
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:410
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
g
const char * g
Definition: vf_curves.c:115
DBlurContext::angle
float angle
Definition: vf_dblur.c:32
DBlurContext::radius
float radius
Definition: vf_dblur.c:33
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:438
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:394
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:408
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:380
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:60
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
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:378
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:416
dblur_outputs
static const AVFilterPad dblur_outputs[]
Definition: vf_dblur.c:288
set_params
static void set_params(DBlurContext *s, float angle, float r)
Definition: vf_dblur.c:163
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
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:659
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
src
#define src
Definition: vp8dsp.c:254
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:398
sinf
#define sinf(x)
Definition: libm.h:419
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:243
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:412
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
desc
const char * desc
Definition: nvenc.c:79
FLAGS
#define FLAGS
Definition: vf_dblur.c:47
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:188
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:402
DBlurContext::c
float c
Definition: vf_dblur.c:36
R2
#define R2
Definition: simple_idct.c:173
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:404
DBlurContext::buffer
float * buffer
Definition: vf_dblur.c:41
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:595
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:869
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:177
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:436
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:125
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:226
planes
static const struct @315 planes[]
in
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;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);return NULL;} return ac;} 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;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->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);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Definition: audio_convert.c:326
DBlurContext::planewidth
int planewidth[4]
Definition: vf_dblur.c:39
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:414
a2
#define a2
Definition: regdef.h:48
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: af_afftdn.c:1374
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
uint8_t
uint8_t
Definition: audio_convert.c:194
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:396
AVFilter
Filter definition.
Definition: avfilter.h:144
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:433
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:401
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:406
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:437
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_dblur.c:271
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:223
avfilter.h
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:338
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
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:81
DBlurContext::q
float q
Definition: vf_dblur.c:36
dblur_options
static const AVOption dblur_options[]
Definition: vf_dblur.c:49
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:48
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
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
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:565
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:1331
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:403
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:407
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:379
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:176
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:405