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vf_deband.c
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1 /*
2  * Copyright (c) 2015 Niklas Haas
3  * Copyright (c) 2015 Paul B Mahol
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a copy
6  * of this software and associated documentation files (the "Software"), to deal
7  * in the Software without restriction, including without limitation the rights
8  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9  * copies of the Software, and to permit persons to whom the Software is
10  * furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be included in
13  * all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21  * SOFTWARE.
22  */
23 
24 #include "libavutil/opt.h"
25 #include "libavutil/pixdesc.h"
26 #include "avfilter.h"
27 #include "internal.h"
28 #include "video.h"
29 
30 typedef struct DebandContext {
31  const AVClass *class;
32 
33  float threshold[4];
34  int range;
35  int blur;
36  float direction;
37 
39  int planewidth[4];
40  int planeheight[4];
41  int thr[4];
42 
43  int *x_pos;
44  int *y_pos;
45 
46  int (*deband)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
48 
49 #define OFFSET(x) offsetof(DebandContext, x)
50 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
51 
52 static const AVOption deband_options[] = {
53  { "1thr", "set 1st plane threshold", OFFSET(threshold[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
54  { "2thr", "set 2nd plane threshold", OFFSET(threshold[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
55  { "3thr", "set 3rd plane threshold", OFFSET(threshold[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
56  { "4thr", "set 4th plane threshold", OFFSET(threshold[3]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
57  { "range", "set range", OFFSET(range), AV_OPT_TYPE_INT, {.i64=16}, INT_MIN, INT_MAX, FLAGS },
58  { "r", "set range", OFFSET(range), AV_OPT_TYPE_INT, {.i64=16}, INT_MIN, INT_MAX, FLAGS },
59  { "direction", "set direction", OFFSET(direction), AV_OPT_TYPE_FLOAT, {.dbl=2*M_PI},-2*M_PI, 2*M_PI, FLAGS },
60  { "d", "set direction", OFFSET(direction), AV_OPT_TYPE_FLOAT, {.dbl=2*M_PI},-2*M_PI, 2*M_PI, FLAGS },
61  { "blur", "set blur", OFFSET(blur), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
62  { NULL }
63 };
64 
65 AVFILTER_DEFINE_CLASS(deband);
66 
68 {
69  static const enum AVPixelFormat pix_fmts[] = {
88  };
89  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
90  if (!fmts_list)
91  return AVERROR(ENOMEM);
92 
93  return ff_set_common_formats(ctx, fmts_list);
94 }
95 
96 static float frand(int x, int y)
97 {
98  const float r = sinf(x * 12.9898 + y * 78.233) * 43758.545;
99 
100  return r - floorf(r);
101 }
102 
103 static int inline get_avg(int ref0, int ref1, int ref2, int ref3)
104 {
105  return (ref0 + ref1 + ref2 + ref3) / 4;
106 }
107 
108 typedef struct ThreadData {
109  AVFrame *in, *out;
110 } ThreadData;
111 
112 static int deband_8_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
113 {
114  DebandContext *s = ctx->priv;
115  ThreadData *td = arg;
116  AVFrame *in = td->in;
117  AVFrame *out = td->out;
118  int x, y, p;
119 
120  for (p = 0; p < s->nb_components; p++) {
121  const uint8_t *src_ptr = (const uint8_t *)in->data[p];
122  uint8_t *dst_ptr = (uint8_t *)out->data[p];
123  const int dst_linesize = out->linesize[p];
124  const int src_linesize = in->linesize[p];
125  const int thr = s->thr[p];
126  const int start = (s->planeheight[p] * jobnr ) / nb_jobs;
127  const int end = (s->planeheight[p] * (jobnr+1)) / nb_jobs;
128  const int w = s->planewidth[p] - 1;
129  const int h = s->planeheight[p] - 1;
130 
131  for (y = start; y < end; y++) {
132  const int pos = y * s->planeheight[0];
133 
134  for (x = 0; x < s->planewidth[p]; x++) {
135  const int x_pos = s->x_pos[pos + x];
136  const int y_pos = s->y_pos[pos + x];
137  const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
138  const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
139  const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
140  const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
141  const int src0 = src_ptr[y * src_linesize + x];
142 
143  if (s->blur) {
144  const int avg = get_avg(ref0, ref1, ref2, ref3);
145  const int diff = FFABS(src0 - avg);
146 
147  dst_ptr[y * dst_linesize + x] = diff < thr ? avg : src0;
148  } else {
149  dst_ptr[y * dst_linesize + x] = (FFABS(src0 - ref0) < thr) &&
150  (FFABS(src0 - ref1) < thr) &&
151  (FFABS(src0 - ref2) < thr) &&
152  (FFABS(src0 - ref3) < thr) ? get_avg(ref0, ref1, ref2, ref3) : src0;
153  }
154  }
155  }
156  }
157 
158  return 0;
159 }
160 
161 static int deband_16_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
162 {
163  DebandContext *s = ctx->priv;
164  ThreadData *td = arg;
165  AVFrame *in = td->in;
166  AVFrame *out = td->out;
167  int x, y, p;
168 
169  for (p = 0; p < s->nb_components; p++) {
170  const uint16_t *src_ptr = (const uint16_t *)in->data[p];
171  uint16_t *dst_ptr = (uint16_t *)out->data[p];
172  const int dst_linesize = out->linesize[p] / 2;
173  const int src_linesize = in->linesize[p] / 2;
174  const int thr = s->thr[p];
175  const int start = (s->planeheight[p] * jobnr ) / nb_jobs;
176  const int end = (s->planeheight[p] * (jobnr+1)) / nb_jobs;
177  const int w = s->planewidth[p] - 1;
178  const int h = s->planeheight[p] - 1;
179 
180  for (y = start; y < end; y++) {
181  const int pos = y * s->planeheight[0];
182 
183  for (x = 0; x < s->planewidth[p]; x++) {
184  const int x_pos = s->x_pos[pos + x];
185  const int y_pos = s->y_pos[pos + x];
186  const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
187  const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
188  const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
189  const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
190  const int src0 = src_ptr[y * src_linesize + x];
191 
192  if (s->blur) {
193  const int avg = get_avg(ref0, ref1, ref2, ref3);
194  const int diff = FFABS(src0 - avg);
195 
196  dst_ptr[y * dst_linesize + x] = diff < thr ? avg : src0;
197  } else {
198  dst_ptr[y * dst_linesize + x] = (FFABS(src0 - ref0) < thr) &&
199  (FFABS(src0 - ref1) < thr) &&
200  (FFABS(src0 - ref2) < thr) &&
201  (FFABS(src0 - ref3) < thr) ? get_avg(ref0, ref1, ref2, ref3) : src0;
202  }
203  }
204  }
205  }
206 
207  return 0;
208 }
209 
210 static int config_input(AVFilterLink *inlink)
211 {
213  AVFilterContext *ctx = inlink->dst;
214  DebandContext *s = ctx->priv;
215  const float direction = s->direction;
216  const int range = s->range;
217  int x, y;
218 
219  s->nb_components = desc->nb_components;
220 
221  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
222  s->planeheight[0] = s->planeheight[3] = inlink->h;
223  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
224  s->planewidth[0] = s->planewidth[3] = inlink->w;
225 
226  s->deband = desc->comp[0].depth > 8 ? deband_16_c : deband_8_c;
227 
228  s->thr[0] = ((1 << desc->comp[0].depth) - 1) * s->threshold[0];
229  s->thr[1] = ((1 << desc->comp[1].depth) - 1) * s->threshold[1];
230  s->thr[2] = ((1 << desc->comp[2].depth) - 1) * s->threshold[2];
231  s->thr[3] = ((1 << desc->comp[3].depth) - 1) * s->threshold[3];
232 
233  s->x_pos = av_malloc(s->planewidth[0] * s->planeheight[0] * sizeof(*s->x_pos));
234  s->y_pos = av_malloc(s->planewidth[0] * s->planeheight[0] * sizeof(*s->y_pos));
235  if (!s->x_pos || !s->y_pos)
236  return AVERROR(ENOMEM);
237 
238  for (y = 0; y < s->planeheight[0]; y++) {
239  for (x = 0; x < s->planewidth[0]; x++) {
240  const float r = frand(x, y);
241  const float dir = direction < 0 ? -direction : r * direction;
242  const int dist = range < 0 ? -range : r * range;
243 
244  s->x_pos[y * s->planeheight[0] + x] = cosf(dir) * dist;
245  s->y_pos[y * s->planeheight[0] + x] = sinf(dir) * dist;
246  }
247  }
248 
249  return 0;
250 }
251 
252 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
253 {
254  AVFilterContext *ctx = inlink->dst;
255  AVFilterLink *outlink = ctx->outputs[0];
256  DebandContext *s = ctx->priv;
257  AVFrame *out;
258  ThreadData td;
259 
260  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
261  if (!out) {
262  av_frame_free(&in);
263  return AVERROR(ENOMEM);
264  }
265  av_frame_copy_props(out, in);
266 
267  td.in = in; td.out = out;
268  ctx->internal->execute(ctx, s->deband, &td, NULL, FFMIN3(s->planeheight[1],
269  s->planeheight[2],
270  ctx->graph->nb_threads));
271 
272  av_frame_free(&in);
273  return ff_filter_frame(outlink, out);
274 }
275 
277 {
278  DebandContext *s = ctx->priv;
279 
280  av_freep(&s->x_pos);
281  av_freep(&s->y_pos);
282 }
283 
285  {
286  .name = "default",
287  .type = AVMEDIA_TYPE_VIDEO,
288  .config_props = config_input,
289  .filter_frame = filter_frame,
290  },
291  { NULL }
292 };
293 
295  {
296  .name = "default",
297  .type = AVMEDIA_TYPE_VIDEO,
298  },
299  { NULL }
300 };
301 
303  .name = "deband",
304  .description = NULL_IF_CONFIG_SMALL("Debands video."),
305  .priv_size = sizeof(DebandContext),
306  .priv_class = &deband_class,
307  .uninit = uninit,
309  .inputs = avfilter_vf_deband_inputs,
310  .outputs = avfilter_vf_deband_outputs,
312 };
#define NULL
Definition: coverity.c:32
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:378
const char * s
Definition: avisynth_c.h:631
static const AVFilterPad avfilter_vf_deband_outputs[]
Definition: vf_deband.c:294
AVFrame * out
Definition: af_sofalizer.c:585
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:372
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2222
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
AVOption.
Definition: opt.h:245
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:374
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:351
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:375
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:89
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:357
static void blur(uint8_t *dst, int dst_step, const uint8_t *src, int src_step, int len, int radius, int pixsize)
Definition: vf_boxblur.c:255
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:345
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:76
static int query_formats(AVFilterContext *ctx)
Definition: vf_deband.c:67
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
AVFILTER_DEFINE_CLASS(deband)
struct AVFilterGraph * graph
filtergraph this filter belongs to
Definition: avfilter.h:322
#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:123
const char * name
Pad name.
Definition: internal.h:59
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1180
AVFrame * in
Definition: af_sofalizer.c:585
int thr[4]
Definition: vf_deband.c:41
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:102
static const AVOption deband_options[]
Definition: vf_deband.c:52
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
#define av_malloc(s)
AVOptions.
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
static int deband_8_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_deband.c:112
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:371
#define cosf(x)
Definition: libm.h:78
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:356
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
int nb_threads
Maximum number of threads used by filters in this graph.
Definition: avfilter.h:804
#define FFMIN3(a, b, c)
Definition: common.h:97
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:354
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:346
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:377
A filter pad used for either input or output.
Definition: internal.h:53
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:187
float threshold[4]
Definition: vf_deband.c:33
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_deband.c:276
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:568
#define td
Definition: regdef.h:70
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
#define OFFSET(x)
Definition: vf_deband.c:49
static float frand(int x, int y)
Definition: vf_deband.c:96
#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:153
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
const char * r
Definition: vf_curves.c:107
void * priv
private data for use by the filter
Definition: avfilter.h:320
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:114
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:379
const char * arg
Definition: jacosubdec.c:66
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:363
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:339
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:360
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:325
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_deband.c:252
AVFormatContext * ctx
Definition: movenc.c:48
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
int nb_components
Definition: vf_deband.c:38
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:376
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:340
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:359
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:352
#define sinf(x)
Definition: libm.h:419
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:349
int planewidth[4]
Definition: vf_deband.c:39
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:215
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:188
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;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);returnNULL;}returnac;}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;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->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);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:142
int * y_pos
Definition: vf_deband.c:44
#define src0
Definition: h264pred.c:138
const char * name
Filter name.
Definition: avfilter.h:146
#define FLAGS
Definition: vf_deband.c:50
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:338
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:317
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
int * x_pos
Definition: vf_deband.c:43
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:350
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:358
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:345
static int flags
Definition: cpu.c:47
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:348
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:198
#define avg(a, b, c, d)
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
float direction
Definition: vf_deband.c:36
Y , 8bpp.
Definition: pixfmt.h:70
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:228
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:373
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
avfilter_execute_func * execute
Definition: internal.h:153
int(* deband)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_deband.c:46
AVFilter ff_vf_deband
Definition: vf_deband.c:302
static av_always_inline int diff(const uint32_t a, const uint32_t b)
static int config_input(AVFilterLink *inlink)
Definition: vf_deband.c:210
int planeheight[4]
Definition: vf_deband.c:40
A list of supported formats for one end of a filter link.
Definition: formats.h:64
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:271
static const AVFilterPad avfilter_vf_deband_inputs[]
Definition: vf_deband.c:284
An instance of a filter.
Definition: avfilter.h:305
FILE * out
Definition: movenc.c:54
static int get_avg(int ref0, int ref1, int ref2, int ref3)
Definition: vf_deband.c:103
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
void INT64 start
Definition: avisynth_c.h:553
#define M_PI
Definition: mathematics.h:46
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
static int deband_16_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_deband.c:161
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:353
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:580
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58