FFmpeg
vf_chromanr.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/avstring.h"
22 #include "libavutil/imgutils.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/pixdesc.h"
25 
26 #include "avfilter.h"
27 #include "formats.h"
28 #include "internal.h"
29 #include "video.h"
30 
31 typedef struct ChromaNRContext {
32  const AVClass *class;
33 
34  float threshold;
35  float threshold_y;
36  float threshold_u;
37  float threshold_v;
38  int thres;
39  int thres_y;
40  int thres_u;
41  int thres_v;
42  int sizew;
43  int sizeh;
44  int stepw;
45  int steph;
46  int depth;
47  int chroma_w;
48  int chroma_h;
49  int nb_planes;
50  int linesize[4];
51  int planeheight[4];
52  int planewidth[4];
53 
55  int (*filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
57 
59 {
60  static const enum AVPixelFormat pix_fmts[] = {
74  };
75 
77  if (!fmts_list)
78  return AVERROR(ENOMEM);
79  return ff_set_common_formats(ctx, fmts_list);
80 }
81 
82 #define FILTER_FUNC(name, type) \
83 static int filter_slice##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
84 { \
85  ChromaNRContext *s = ctx->priv; \
86  AVFrame *in = arg; \
87  AVFrame *out = s->out; \
88  const int in_ylinesize = in->linesize[0]; \
89  const int in_ulinesize = in->linesize[1]; \
90  const int in_vlinesize = in->linesize[2]; \
91  const int out_ulinesize = out->linesize[1]; \
92  const int out_vlinesize = out->linesize[2]; \
93  const int chroma_w = s->chroma_w; \
94  const int chroma_h = s->chroma_h; \
95  const int stepw = s->stepw; \
96  const int steph = s->steph; \
97  const int sizew = s->sizew; \
98  const int sizeh = s->sizeh; \
99  const int thres = s->thres; \
100  const int thres_y = s->thres_y; \
101  const int thres_u = s->thres_u; \
102  const int thres_v = s->thres_v; \
103  const int h = s->planeheight[1]; \
104  const int w = s->planewidth[1]; \
105  const int slice_start = (h * jobnr) / nb_jobs; \
106  const int slice_end = (h * (jobnr+1)) / nb_jobs; \
107  type *out_uptr = (type *)(out->data[1] + slice_start * out_ulinesize); \
108  type *out_vptr = (type *)(out->data[2] + slice_start * out_vlinesize); \
109  \
110  { \
111  const int h = s->planeheight[0]; \
112  const int slice_start = (h * jobnr) / nb_jobs; \
113  const int slice_end = (h * (jobnr+1)) / nb_jobs; \
114  \
115  av_image_copy_plane(out->data[0] + slice_start * out->linesize[0], \
116  out->linesize[0], \
117  in->data[0] + slice_start * in->linesize[0], \
118  in->linesize[0], \
119  s->linesize[0], slice_end - slice_start); \
120  \
121  if (s->nb_planes == 4) { \
122  av_image_copy_plane(out->data[3] + slice_start * out->linesize[3], \
123  out->linesize[3], \
124  in->data[3] + slice_start * in->linesize[3], \
125  in->linesize[3], \
126  s->linesize[3], slice_end - slice_start); \
127  } \
128  } \
129  \
130  for (int y = slice_start; y < slice_end; y++) { \
131  const type *in_yptr = (const type *)(in->data[0] + y * chroma_h * in_ylinesize); \
132  const type *in_uptr = (const type *)(in->data[1] + y * in_ulinesize); \
133  const type *in_vptr = (const type *)(in->data[2] + y * in_vlinesize); \
134  \
135  for (int x = 0; x < w; x++) { \
136  const int cy = in_yptr[x * chroma_w]; \
137  const int cu = in_uptr[x]; \
138  const int cv = in_vptr[x]; \
139  int su = cu; \
140  int sv = cv; \
141  int cn = 1; \
142  \
143  for (int yy = FFMAX(0, y - sizeh); yy < FFMIN(y + sizeh, h); yy += steph) { \
144  const type *in_yptr = (const type *)(in->data[0] + yy * chroma_h * in_ylinesize); \
145  const type *in_uptr = (const type *)(in->data[1] + yy * in_ulinesize); \
146  const type *in_vptr = (const type *)(in->data[2] + yy * in_vlinesize); \
147  \
148  for (int xx = FFMAX(0, x - sizew); xx < FFMIN(x + sizew, w); xx += stepw) { \
149  const int Y = in_yptr[xx * chroma_w]; \
150  const int U = in_uptr[xx]; \
151  const int V = in_vptr[xx]; \
152  \
153  if (FFABS(cu - U) + FFABS(cv - V) + FFABS(cy - Y) < thres && \
154  FFABS(cu - U) < thres_u && FFABS(cv - V) < thres_v && \
155  FFABS(cy - Y) < thres_y && \
156  xx != x && yy != y) { \
157  su += U; \
158  sv += V; \
159  cn++; \
160  } \
161  } \
162  } \
163  \
164  out_uptr[x] = su / cn; \
165  out_vptr[x] = sv / cn; \
166  } \
167  \
168  out_uptr += out_ulinesize / sizeof(type); \
169  out_vptr += out_vlinesize / sizeof(type); \
170  } \
171  \
172  return 0; \
173 }
174 
176 FILTER_FUNC(16, uint16_t)
177 
179 {
180  AVFilterContext *ctx = inlink->dst;
181  AVFilterLink *outlink = ctx->outputs[0];
182  ChromaNRContext *s = ctx->priv;
183  AVFrame *out;
184 
185  s->thres = s->threshold * (1 << (s->depth - 8));
186  s->thres_y = s->threshold_y * (1 << (s->depth - 8));
187  s->thres_u = s->threshold_u * (1 << (s->depth - 8));
188  s->thres_v = s->threshold_v * (1 << (s->depth - 8));
189 
190  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
191  if (!out) {
192  av_frame_free(&in);
193  return AVERROR(ENOMEM);
194  }
195 
197  s->out = out;
198  ctx->internal->execute(ctx, s->filter_slice, in, NULL,
199  FFMIN3(s->planeheight[1],
200  s->planeheight[2],
202 
203  av_frame_free(&in);
204  return ff_filter_frame(outlink, out);
205 }
206 
208 {
209  AVFilterContext *ctx = inlink->dst;
210  ChromaNRContext *s = ctx->priv;
212  int ret;
213 
214  s->nb_planes = desc->nb_components;
215  s->depth = desc->comp[0].depth;
216  s->filter_slice = s->depth <= 8 ? filter_slice8 : filter_slice16;
217  s->chroma_w = 1 << desc->log2_chroma_w;
218  s->chroma_h = 1 << desc->log2_chroma_h;
219  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
220  s->planeheight[0] = s->planeheight[3] = inlink->h;
221  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
222  s->planewidth[0] = s->planewidth[3] = inlink->w;
223 
224  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
225  return ret;
226 
227  return 0;
228 }
229 
230 #define OFFSET(x) offsetof(ChromaNRContext, x)
231 #define VF AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
232 
233 static const AVOption chromanr_options[] = {
234  { "thres", "set y+u+v threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=30}, 1, 200, VF },
235  { "sizew", "set horizontal size", OFFSET(sizew), AV_OPT_TYPE_INT, {.i64=5}, 1, 100, VF },
236  { "sizeh", "set vertical size", OFFSET(sizeh), AV_OPT_TYPE_INT, {.i64=5}, 1, 100, VF },
237  { "stepw", "set horizontal step", OFFSET(stepw), AV_OPT_TYPE_INT, {.i64=1}, 1, 50, VF },
238  { "steph", "set vertical step", OFFSET(steph), AV_OPT_TYPE_INT, {.i64=1}, 1, 50, VF },
239  { "threy", "set y threshold", OFFSET(threshold_y), AV_OPT_TYPE_FLOAT, {.dbl=200},1, 200, VF },
240  { "threu", "set u threshold", OFFSET(threshold_u), AV_OPT_TYPE_FLOAT, {.dbl=200},1, 200, VF },
241  { "threv", "set v threshold", OFFSET(threshold_v), AV_OPT_TYPE_FLOAT, {.dbl=200},1, 200, VF },
242  { NULL }
243 };
244 
245 static const AVFilterPad inputs[] = {
246  {
247  .name = "default",
248  .type = AVMEDIA_TYPE_VIDEO,
249  .filter_frame = filter_frame,
250  .config_props = config_input,
251  },
252  { NULL }
253 };
254 
255 static const AVFilterPad outputs[] = {
256  {
257  .name = "default",
258  .type = AVMEDIA_TYPE_VIDEO,
259  },
260  { NULL }
261 };
262 
263 AVFILTER_DEFINE_CLASS(chromanr);
264 
266  .name = "chromanr",
267  .description = NULL_IF_CONFIG_SMALL("Reduce chrominance noise."),
268  .priv_size = sizeof(ChromaNRContext),
269  .priv_class = &chromanr_class,
271  .outputs = outputs,
272  .inputs = inputs,
275 };
chromanr_options
static const AVOption chromanr_options[]
Definition: vf_chromanr.c:233
ChromaNRContext::thres_y
int thres_y
Definition: vf_chromanr.c:39
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
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
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
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
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
av_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
ChromaNRContext::steph
int steph
Definition: vf_chromanr.c:45
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
video.h
AVFormatContext::internal
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1698
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:437
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_chromanr.c:178
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:65
formats.h
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:433
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:443
ChromaNRContext::threshold_v
float threshold_v
Definition: vf_chromanr.c:37
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:397
FFMIN3
#define FFMIN3(a, b, c)
Definition: common.h:106
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
ChromaNRContext::threshold
float threshold
Definition: vf_chromanr.c:34
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_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
ChromaNRContext::linesize
int linesize[4]
Definition: vf_chromanr.c:50
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_image_fill_linesizes
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
Definition: imgutils.c:89
s
#define s(width, name)
Definition: cbs_vp9.c:257
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:412
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
ChromaNRContext::planewidth
int planewidth[4]
Definition: vf_chromanr.c:52
VF
#define VF
Definition: vf_chromanr.c:231
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_chromanr.c:207
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
ChromaNRContext::filter_slice
int(* filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_chromanr.c:55
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
ChromaNRContext::depth
int depth
Definition: vf_chromanr.c:46
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
arg
const char * arg
Definition: jacosubdec.c:66
outputs
static const AVFilterPad outputs[]
Definition: vf_chromanr.c:255
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
ChromaNRContext::out
AVFrame * out
Definition: vf_chromanr.c:54
ChromaNRContext::nb_planes
int nb_planes
Definition: vf_chromanr.c:49
AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:401
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
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
inputs
static const AVFilterPad inputs[]
Definition: vf_chromanr.c:245
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
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:406
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
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
ff_vf_chromanr
AVFilter ff_vf_chromanr
Definition: vf_chromanr.c:265
ChromaNRContext::thres
int thres
Definition: vf_chromanr.c:38
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
FILTER_FUNC
#define FILTER_FUNC(name, type)
Definition: vf_chromanr.c:82
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
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
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
ChromaNRContext::threshold_u
float threshold_u
Definition: vf_chromanr.c:36
AVFilter
Filter definition.
Definition: avfilter.h:145
ret
ret
Definition: filter_design.txt:187
ChromaNRContext
Definition: vf_chromanr.c:31
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
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_chromanr.c:58
ChromaNRContext::planeheight
int planeheight[4]
Definition: vf_chromanr.c:51
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
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
OFFSET
#define OFFSET(x)
Definition: vf_chromanr.c:230
avfilter.h
ChromaNRContext::sizew
int sizew
Definition: vf_chromanr.c:42
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(chromanr)
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
ChromaNRContext::sizeh
int sizeh
Definition: vf_chromanr.c:43
AVFilterContext
An instance of a filter.
Definition: avfilter.h:341
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h: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
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_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:405
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:409
avstring.h
int
int
Definition: ffmpeg_filter.c:158
ChromaNRContext::stepw
int stepw
Definition: vf_chromanr.c:44
ChromaNRContext::thres_u
int thres_u
Definition: vf_chromanr.c:40
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
ChromaNRContext::threshold_y
float threshold_y
Definition: vf_chromanr.c:35
ChromaNRContext::chroma_h
int chroma_h
Definition: vf_chromanr.c:48
ChromaNRContext::thres_v
int thres_v
Definition: vf_chromanr.c:41
ChromaNRContext::chroma_w
int chroma_w
Definition: vf_chromanr.c:47