FFmpeg  4.4.5
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 
178 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
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 
207 static int config_input(AVFilterLink *inlink)
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 
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 };
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: af_acrusher.c:336
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
uint8_t
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1096
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
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
Main libavfilter public API header.
#define flags(name, subs,...)
Definition: cbs_av1.c:572
#define s(width, name)
Definition: cbs_vp9.c:257
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
#define FFMIN3(a, b, c)
Definition: common.h:106
#define NULL
Definition: coverity.c:32
int
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
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
@ AV_OPT_TYPE_INT
Definition: opt.h:225
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
#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
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:658
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
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
misc image utilities
const char * arg
Definition: jacosubdec.c:66
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:309
const char * desc
Definition: libsvtav1.c:79
AVOptions.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:410
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:406
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:398
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:399
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:405
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:397
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:438
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:441
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:403
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:436
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:434
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:404
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:396
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:433
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:437
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:407
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
@ 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_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
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
@ 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_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_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_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
@ 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_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
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:439
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:408
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:411
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:401
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:443
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:442
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:409
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:435
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:440
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:412
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
Describe the class of an AVClass context structure.
Definition: log.h:67
An instance of a filter.
Definition: avfilter.h:341
A list of supported formats for one end of a filter link.
Definition: formats.h:65
A filter pad used for either input or output.
Definition: internal.h:54
const char * name
Pad name.
Definition: internal.h:60
Filter definition.
Definition: avfilter.h:145
const char * name
Filter name.
Definition: avfilter.h:149
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1699
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
AVOption.
Definition: opt.h:248
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
AVFrame * out
Definition: vf_chromanr.c:54
int planeheight[4]
Definition: vf_chromanr.c:51
int planewidth[4]
Definition: vf_chromanr.c:52
int(* filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_chromanr.c:55
FILE * out
Definition: movenc.c:54
AVFormatContext * ctx
Definition: movenc.c:48
static const AVOption chromanr_options[]
Definition: vf_chromanr.c:233
AVFILTER_DEFINE_CLASS(chromanr)
static int query_formats(AVFilterContext *ctx)
Definition: vf_chromanr.c:58
static int config_input(AVFilterLink *inlink)
Definition: vf_chromanr.c:207
static const AVFilterPad inputs[]
Definition: vf_chromanr.c:245
static const AVFilterPad outputs[]
Definition: vf_chromanr.c:255
#define VF
Definition: vf_chromanr.c:231
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_chromanr.c:178
#define OFFSET(x)
Definition: vf_chromanr.c:230
#define FILTER_FUNC(name, type)
Definition: vf_chromanr.c:82
AVFilter ff_vf_chromanr
Definition: vf_chromanr.c:265
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:104