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(0, 0) + c * f(0, 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(0, width - 1) + c * f(0, 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 
116 {
117  static const enum AVPixelFormat pix_fmts[] = {
137  };
138 
140 }
141 
143 {
145  DBlurContext *s = inlink->dst->priv;
146 
147  s->depth = desc->comp[0].depth;
148  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
149  s->planewidth[0] = s->planewidth[3] = inlink->w;
150  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
151  s->planeheight[0] = s->planeheight[3] = inlink->h;
152 
153  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
154 
155  s->buffer = av_malloc_array(FFALIGN(inlink->w, 16), FFALIGN(inlink->h, 16) * sizeof(*s->buffer));
156  if (!s->buffer)
157  return AVERROR(ENOMEM);
158 
159  return 0;
160 }
161 
162 static void set_params(DBlurContext *s, float angle, float r)
163 {
164  float mu, nu, R1, R2, w1, w2;
165  float a0, a1, a2, a3;
166 
167  angle = angle * M_PI / 180.f;
168 
169  mu = cosf(angle);
170  nu = sinf(angle);
171  R1 = (mu * r) * (mu * r);
172  R2 = (nu * r) * (nu * r);
173  s->R3 = mu * nu * r * r;
174  w1 = sqrtf(0.25f + R1);
175  w2 = sqrtf(0.25f + R2);
176  a0 = (w1 + 0.5f) * (w2 + 0.5f) - fabsf(s->R3);
177  a1 = 0.5f + w2 - a0;
178  a2 = 0.5f + w1 - a0;
179  a3 = a0 - w1 - w2;
180  s->b0 = 1.f / a0;
181  s->b1 = -a2 / a0;
182  s->q = -a1 / a0;
183  s->c = -a3 / a0;
184 }
185 
187 {
188  AVFilterContext *ctx = inlink->dst;
189  DBlurContext *s = ctx->priv;
190  AVFilterLink *outlink = ctx->outputs[0];
191  AVFrame *out;
192  int plane;
193 
194  set_params(s, s->angle, s->radius);
195 
196  if (av_frame_is_writable(in)) {
197  out = in;
198  } else {
199  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
200  if (!out) {
201  av_frame_free(&in);
202  return AVERROR(ENOMEM);
203  }
205  }
206 
207  for (plane = 0; plane < s->nb_planes; plane++) {
208  const int height = s->planeheight[plane];
209  const int width = s->planewidth[plane];
210  float *bptr = s->buffer;
211  const uint8_t *src = in->data[plane];
212  const uint16_t *src16 = (const uint16_t *)in->data[plane];
213  uint8_t *dst = out->data[plane];
214  uint16_t *dst16 = (uint16_t *)out->data[plane];
215  int y, x;
216 
217  if (!(s->planes & (1 << plane))) {
218  if (out != in)
219  av_image_copy_plane(out->data[plane], out->linesize[plane],
220  in->data[plane], in->linesize[plane],
221  width * ((s->depth + 7) / 8), height);
222  continue;
223  }
224 
225  if (s->depth == 8) {
226  for (y = 0; y < height; y++) {
227  for (x = 0; x < width; x++) {
228  bptr[x] = src[x];
229  }
230  bptr += width;
231  src += in->linesize[plane];
232  }
233  } else {
234  for (y = 0; y < height; y++) {
235  for (x = 0; x < width; x++) {
236  bptr[x] = src16[x];
237  }
238  bptr += width;
239  src16 += in->linesize[plane] / 2;
240  }
241  }
242 
243  diriir2d(ctx, plane);
244 
245  bptr = s->buffer;
246  if (s->depth == 8) {
247  for (y = 0; y < height; y++) {
248  for (x = 0; x < width; x++) {
249  dst[x] = bptr[x];
250  }
251  bptr += width;
252  dst += out->linesize[plane];
253  }
254  } else {
255  for (y = 0; y < height; y++) {
256  for (x = 0; x < width; x++) {
257  dst16[x] = bptr[x];
258  }
259  bptr += width;
260  dst16 += out->linesize[plane] / 2;
261  }
262  }
263  }
264 
265  if (out != in)
266  av_frame_free(&in);
267  return ff_filter_frame(outlink, out);
268 }
269 
271 {
272  DBlurContext *s = ctx->priv;
273 
274  av_freep(&s->buffer);
275 }
276 
277 static const AVFilterPad dblur_inputs[] = {
278  {
279  .name = "default",
280  .type = AVMEDIA_TYPE_VIDEO,
281  .config_props = config_input,
282  .filter_frame = filter_frame,
283  },
284  { NULL }
285 };
286 
287 static const AVFilterPad dblur_outputs[] = {
288  {
289  .name = "default",
290  .type = AVMEDIA_TYPE_VIDEO,
291  },
292  { NULL }
293 };
294 
296  .name = "dblur",
297  .description = NULL_IF_CONFIG_SMALL("Apply Directional Blur filter."),
298  .priv_size = sizeof(DBlurContext),
299  .priv_class = &dblur_class,
300  .uninit = uninit,
302  .inputs = dblur_inputs,
306 };
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:442
DBlurContext::depth
int depth
Definition: vf_dblur.c:38
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:421
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
ff_vf_dblur
AVFilter ff_vf_dblur
Definition: vf_dblur.c:295
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:286
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:1094
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
dblur_inputs
static const AVFilterPad dblur_inputs[]
Definition: vf_dblur.c:277
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:142
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:204
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:434
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:324
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:441
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:436
AVOption
AVOption.
Definition: opt.h:248
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:399
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:172
f
#define f(n, m)
Definition: vf_dblur.c:57
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:437
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:379
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:373
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:2613
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:433
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:417
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_dblur.c:186
b1
static double b1(void *priv, double x, double y)
Definition: vf_xfade.c:1665
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:415
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:443
DBlurContext::planes
int planes
Definition: vf_dblur.c:34
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:397
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:383
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:54
a1
#define a1
Definition: regdef.h:47
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
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
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_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:411
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:587
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:419
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:420
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:115
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:412
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
g
const char * g
Definition: vf_curves.c:117
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:303
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:440
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:396
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:410
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:382
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
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:380
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:418
dblur_outputs
static const AVFilterPad dblur_outputs[]
Definition: vf_dblur.c:287
set_params
static void set_params(DBlurContext *s, float angle, float r)
Definition: vf_dblur.c:162
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:255
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
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:414
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
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: af_acrusher.c:336
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:404
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:406
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: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:177
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:438
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:126
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
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:416
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
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:398
AVFilter
Filter definition.
Definition: avfilter.h:145
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:435
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:403
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:408
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:439
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_dblur.c:270
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
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:341
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
planes
static const struct @322 planes[]
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:81
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: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:561
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:1664
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:405
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:409
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:381
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:407