FFmpeg
vf_sab.c
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1 /*
2  * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (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
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19  */
20 
21 /**
22  * @file
23  * Shape Adaptive Blur filter, ported from MPlayer libmpcodecs/vf_sab.c
24  */
25 
26 #include "libavutil/opt.h"
27 #include "libavutil/pixdesc.h"
28 #include "libswscale/swscale.h"
29 
30 #include "avfilter.h"
31 #include "formats.h"
32 #include "internal.h"
33 
34 typedef struct FilterParam {
35  float radius;
37  float strength;
38  float quality;
44  int *dist_coeff;
45 #define COLOR_DIFF_COEFF_SIZE 512
47 } FilterParam;
48 
49 typedef struct SabContext {
50  const AVClass *class;
53  int hsub;
54  int vsub;
55  unsigned int sws_flags;
56 } SabContext;
57 
59 {
60  static const enum AVPixelFormat pix_fmts[] = {
67  };
68  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
69  if (!fmts_list)
70  return AVERROR(ENOMEM);
71  return ff_set_common_formats(ctx, fmts_list);
72 }
73 
74 #define RADIUS_MIN 0.1
75 #define RADIUS_MAX 4.0
76 
77 #define PRE_FILTER_RADIUS_MIN 0.1
78 #define PRE_FILTER_RADIUS_MAX 2.0
79 
80 #define STRENGTH_MIN 0.1
81 #define STRENGTH_MAX 100.0
82 
83 #define OFFSET(x) offsetof(SabContext, x)
84 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
85 
86 static const AVOption sab_options[] = {
87  { "luma_radius", "set luma radius", OFFSET(luma.radius), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, RADIUS_MIN, RADIUS_MAX, .flags=FLAGS },
88  { "lr" , "set luma radius", OFFSET(luma.radius), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, RADIUS_MIN, RADIUS_MAX, .flags=FLAGS },
89  { "luma_pre_filter_radius", "set luma pre-filter radius", OFFSET(luma.pre_filter_radius), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, PRE_FILTER_RADIUS_MIN, PRE_FILTER_RADIUS_MAX, .flags=FLAGS },
90  { "lpfr", "set luma pre-filter radius", OFFSET(luma.pre_filter_radius), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, PRE_FILTER_RADIUS_MIN, PRE_FILTER_RADIUS_MAX, .flags=FLAGS },
91  { "luma_strength", "set luma strength", OFFSET(luma.strength), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, STRENGTH_MIN, STRENGTH_MAX, .flags=FLAGS },
92  { "ls", "set luma strength", OFFSET(luma.strength), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, STRENGTH_MIN, STRENGTH_MAX, .flags=FLAGS },
93 
94  { "chroma_radius", "set chroma radius", OFFSET(chroma.radius), AV_OPT_TYPE_FLOAT, {.dbl=RADIUS_MIN-1}, RADIUS_MIN-1, RADIUS_MAX, .flags=FLAGS },
95  { "cr", "set chroma radius", OFFSET(chroma.radius), AV_OPT_TYPE_FLOAT, {.dbl=RADIUS_MIN-1}, RADIUS_MIN-1, RADIUS_MAX, .flags=FLAGS },
96  { "chroma_pre_filter_radius", "set chroma pre-filter radius", OFFSET(chroma.pre_filter_radius), AV_OPT_TYPE_FLOAT, {.dbl=PRE_FILTER_RADIUS_MIN-1},
98  { "cpfr", "set chroma pre-filter radius", OFFSET(chroma.pre_filter_radius), AV_OPT_TYPE_FLOAT, {.dbl=PRE_FILTER_RADIUS_MIN-1},
100  { "chroma_strength", "set chroma strength", OFFSET(chroma.strength), AV_OPT_TYPE_FLOAT, {.dbl=STRENGTH_MIN-1}, STRENGTH_MIN-1, STRENGTH_MAX, .flags=FLAGS },
101  { "cs", "set chroma strength", OFFSET(chroma.strength), AV_OPT_TYPE_FLOAT, {.dbl=STRENGTH_MIN-1}, STRENGTH_MIN-1, STRENGTH_MAX, .flags=FLAGS },
102 
103  { NULL }
104 };
105 
107 
109 {
110  SabContext *s = ctx->priv;
111 
112  /* make chroma default to luma values, if not explicitly set */
113  if (s->chroma.radius < RADIUS_MIN)
114  s->chroma.radius = s->luma.radius;
117  if (s->chroma.strength < STRENGTH_MIN)
118  s->chroma.strength = s->luma.strength;
119 
120  s->luma.quality = s->chroma.quality = 3.0;
121  s->sws_flags = SWS_POINT;
122 
123  av_log(ctx, AV_LOG_VERBOSE,
124  "luma_radius:%f luma_pre_filter_radius::%f luma_strength:%f "
125  "chroma_radius:%f chroma_pre_filter_radius:%f chroma_strength:%f\n",
128  return 0;
129 }
130 
132 {
133  if (f->pre_filter_context) {
136  }
138  av_freep(&f->dist_coeff);
139 }
140 
142 {
143  SabContext *s = ctx->priv;
144 
147 }
148 
149 static int open_filter_param(FilterParam *f, int width, int height, unsigned int sws_flags)
150 {
151  SwsVector *vec;
152  SwsFilter sws_f;
153  int i, x, y;
154  int linesize = FFALIGN(width, 8);
155 
156  f->pre_filter_buf = av_malloc(linesize * height);
157  if (!f->pre_filter_buf)
158  return AVERROR(ENOMEM);
159 
160  f->pre_filter_linesize = linesize;
162  sws_f.lumH = sws_f.lumV = vec;
163  sws_f.chrH = sws_f.chrV = NULL;
165  width, height, AV_PIX_FMT_GRAY8,
166  sws_flags, &sws_f, NULL, NULL);
167  sws_freeVec(vec);
168 
169  vec = sws_getGaussianVec(f->strength, 5.0);
170  for (i = 0; i < COLOR_DIFF_COEFF_SIZE; i++) {
171  double d;
172  int index = i-COLOR_DIFF_COEFF_SIZE/2 + vec->length/2;
173 
174  if (index < 0 || index >= vec->length) d = 0.0;
175  else d = vec->coeff[index];
176 
177  f->color_diff_coeff[i] = (int)(d/vec->coeff[vec->length/2]*(1<<12) + 0.5);
178  }
179  sws_freeVec(vec);
180 
181  vec = sws_getGaussianVec(f->radius, f->quality);
182  f->dist_width = vec->length;
183  f->dist_linesize = FFALIGN(vec->length, 8);
184  f->dist_coeff = av_malloc_array(f->dist_width, f->dist_linesize * sizeof(*f->dist_coeff));
185  if (!f->dist_coeff) {
186  sws_freeVec(vec);
187  return AVERROR(ENOMEM);
188  }
189 
190  for (y = 0; y < vec->length; y++) {
191  for (x = 0; x < vec->length; x++) {
192  double d = vec->coeff[x] * vec->coeff[y];
193  f->dist_coeff[x + y*f->dist_linesize] = (int)(d*(1<<10) + 0.5);
194  }
195  }
196  sws_freeVec(vec);
197 
198  return 0;
199 }
200 
202 {
203  SabContext *s = inlink->dst->priv;
205  int ret;
206 
207  s->hsub = desc->log2_chroma_w;
208  s->vsub = desc->log2_chroma_h;
209 
211  ret = open_filter_param(&s->luma, inlink->w, inlink->h, s->sws_flags);
212  if (ret < 0)
213  return ret;
214 
216  ret = open_filter_param(&s->chroma,
217  AV_CEIL_RSHIFT(inlink->w, s->hsub),
218  AV_CEIL_RSHIFT(inlink->h, s->vsub), s->sws_flags);
219  return ret;
220 }
221 
222 #define NB_PLANES 4
223 
224 static void blur(uint8_t *dst, const int dst_linesize,
225  const uint8_t *src, const int src_linesize,
226  const int w, const int h, FilterParam *fp)
227 {
228  int x, y;
229  FilterParam f = *fp;
230  const int radius = f.dist_width/2;
231 
232  const uint8_t * const src2[NB_PLANES] = { src };
233  int src2_linesize[NB_PLANES] = { src_linesize };
234  uint8_t *dst2[NB_PLANES] = { f.pre_filter_buf };
235  int dst2_linesize[NB_PLANES] = { f.pre_filter_linesize };
236 
237  sws_scale(f.pre_filter_context, src2, src2_linesize, 0, h, dst2, dst2_linesize);
238 
239 #define UPDATE_FACTOR do { \
240  int factor; \
241  factor = f.color_diff_coeff[COLOR_DIFF_COEFF_SIZE/2 + pre_val - \
242  f.pre_filter_buf[ix + iy*f.pre_filter_linesize]] * f.dist_coeff[dx + dy*f.dist_linesize]; \
243  sum += src[ix + iy*src_linesize] * factor; \
244  div += factor; \
245  } while (0)
246 
247  for (y = 0; y < h; y++) {
248  for (x = 0; x < w; x++) {
249  int sum = 0;
250  int div = 0;
251  int dy;
252  const int pre_val = f.pre_filter_buf[x + y*f.pre_filter_linesize];
253  if (x >= radius && x < w - radius) {
254  for (dy = 0; dy < radius*2 + 1; dy++) {
255  int dx;
256  int iy = y+dy - radius;
257  iy = avpriv_mirror(iy, h-1);
258 
259  for (dx = 0; dx < radius*2 + 1; dx++) {
260  const int ix = x+dx - radius;
262  }
263  }
264  } else {
265  for (dy = 0; dy < radius*2+1; dy++) {
266  int dx;
267  int iy = y+dy - radius;
268  iy = avpriv_mirror(iy, h-1);
269 
270  for (dx = 0; dx < radius*2 + 1; dx++) {
271  int ix = x+dx - radius;
272  ix = avpriv_mirror(ix, w-1);
274  }
275  }
276  }
277  dst[x + y*dst_linesize] = (sum + div/2) / div;
278  }
279  }
280 }
281 
283 {
284  SabContext *s = inlink->dst->priv;
285  AVFilterLink *outlink = inlink->dst->outputs[0];
286  AVFrame *outpic;
287 
288  outpic = ff_get_video_buffer(outlink, outlink->w, outlink->h);
289  if (!outpic) {
290  av_frame_free(&inpic);
291  return AVERROR(ENOMEM);
292  }
293  av_frame_copy_props(outpic, inpic);
294 
295  blur(outpic->data[0], outpic->linesize[0], inpic->data[0], inpic->linesize[0],
296  inlink->w, inlink->h, &s->luma);
297  if (inpic->data[2]) {
298  int cw = AV_CEIL_RSHIFT(inlink->w, s->hsub);
299  int ch = AV_CEIL_RSHIFT(inlink->h, s->vsub);
300  blur(outpic->data[1], outpic->linesize[1], inpic->data[1], inpic->linesize[1], cw, ch, &s->chroma);
301  blur(outpic->data[2], outpic->linesize[2], inpic->data[2], inpic->linesize[2], cw, ch, &s->chroma);
302  }
303 
304  av_frame_free(&inpic);
305  return ff_filter_frame(outlink, outpic);
306 }
307 
308 static const AVFilterPad sab_inputs[] = {
309  {
310  .name = "default",
311  .type = AVMEDIA_TYPE_VIDEO,
312  .filter_frame = filter_frame,
313  .config_props = config_props,
314  },
315  { NULL }
316 };
317 
318 static const AVFilterPad sab_outputs[] = {
319  {
320  .name = "default",
321  .type = AVMEDIA_TYPE_VIDEO,
322  },
323  { NULL }
324 };
325 
327  .name = "sab",
328  .description = NULL_IF_CONFIG_SMALL("Apply shape adaptive blur."),
329  .priv_size = sizeof(SabContext),
330  .init = init,
331  .uninit = uninit,
333  .inputs = sab_inputs,
334  .outputs = sab_outputs,
335  .priv_class = &sab_class,
337 };
SwsVector * chrV
Definition: swscale.h:119
#define NULL
Definition: coverity.c:32
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
float radius
Definition: vf_sab.c:35
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
AVOption.
Definition: opt.h:246
AVFILTER_DEFINE_CLASS(sab)
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
static const AVFilterPad sab_outputs[]
Definition: vf_sab.c:318
SwsVector * lumV
Definition: swscale.h:117
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:68
SwsVector * sws_getGaussianVec(double variance, double quality)
Return a normalized Gaussian curve used to filter stuff quality = 3 is high quality, lower is lower quality.
Definition: utils.c:2028
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(INT64_C(1)<< 63)))#define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};static void cpy1(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, len);}static void cpy2(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 2 *len);}static void cpy4(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 4 *len);}static void cpy8(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){int planes=out->planar?out->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
static unsigned sws_flags
Definition: ffplay.c:110
static const AVOption sab_options[]
Definition: vf_sab.c:86
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
unsigned int sws_flags
Definition: vf_sab.c:55
#define src
Definition: vp8dsp.c:254
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
int dist_linesize
Definition: vf_sab.c:43
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
static void blur(uint8_t *dst, const int dst_linesize, const uint8_t *src, const int src_linesize, const int w, const int h, FilterParam *fp)
Definition: vf_sab.c:224
#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
float strength
Definition: vf_sab.c:37
const char * name
Pad name.
Definition: internal.h:60
int pre_filter_linesize
Definition: vf_sab.c:41
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
uint8_t
#define av_cold
Definition: attributes.h:82
#define av_malloc(s)
int length
number of coefficients in the vector
Definition: swscale.h:111
#define PRE_FILTER_RADIUS_MIN
Definition: vf_sab.c:77
AVOptions.
#define f(width, name)
Definition: cbs_vp9.c:255
int vsub
Definition: vf_sab.c:54
av_frame_free & inpic
Definition: vf_mcdeint.c:278
#define COLOR_DIFF_COEFF_SIZE
Definition: vf_sab.c:45
float pre_filter_radius
Definition: vf_sab.c:36
#define height
struct SwsContext * sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
Allocate and return an SwsContext.
Definition: utils.c:1891
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
external API header
#define FFALIGN(x, a)
Definition: macros.h:48
#define av_log(a,...)
#define FLAGS
Definition: vf_sab.c:84
A filter pad used for either input or output.
Definition: internal.h:54
static void close_filter_param(FilterParam *f)
Definition: vf_sab.c:131
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
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
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
static av_always_inline void chroma(WaveformContext *s, AVFrame *in, AVFrame *out, int component, int intensity, int offset_y, int offset_x, int column, int mirror, int jobnr, int nb_jobs)
Definition: vf_waveform.c:1511
int hsub
Definition: vf_sab.c:53
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
void * priv
private data for use by the filter
Definition: avfilter.h:353
static int query_formats(AVFilterContext *ctx)
Definition: vf_sab.c:58
int color_diff_coeff[COLOR_DIFF_COEFF_SIZE]
Definition: vf_sab.c:46
SwsVector * lumH
Definition: swscale.h:116
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
static const AVFilterPad sab_inputs[]
Definition: vf_sab.c:308
#define UPDATE_FACTOR
#define RADIUS_MIN
Definition: vf_sab.c:74
float quality
Definition: vf_sab.c:38
SwsVector * chrH
Definition: swscale.h:118
#define width
#define RADIUS_MAX
Definition: vf_sab.c:75
uint8_t w
Definition: llviddspenc.c:38
AVFormatContext * ctx
Definition: movenc.c:48
void sws_freeContext(struct SwsContext *swsContext)
Free the swscaler context swsContext.
Definition: utils.c:2311
#define s(width, name)
Definition: cbs_vp9.c:257
static int config_props(AVFilterLink *inlink)
Definition: vf_sab.c:201
FilterParam chroma
Definition: vf_sab.c:52
static av_always_inline av_const int avpriv_mirror(int x, int w)
Definition: internal.h:338
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
double * coeff
pointer to the list of coefficients
Definition: swscale.h:110
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
void sws_freeVec(SwsVector *a)
Definition: utils.c:2290
#define fp
Definition: regdef.h:44
int attribute_align_arg sws_scale(struct SwsContext *c, const uint8_t *const srcSlice[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[])
swscale wrapper, so we don&#39;t need to export the SwsContext.
Definition: swscale.c:757
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
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
int index
Definition: gxfenc.c:89
static int filter_frame(AVFilterLink *inlink, AVFrame *inpic)
Definition: vf_sab.c:282
const char * name
Filter name.
Definition: avfilter.h:148
#define SWS_POINT
Definition: swscale.h:62
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
#define STRENGTH_MAX
Definition: vf_sab.c:81
#define flags(name, subs,...)
Definition: cbs_av1.c:561
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
AVFilter ff_vf_sab
Definition: vf_sab.c:326
uint8_t * pre_filter_buf
Definition: vf_sab.c:40
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
int
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
Y , 8bpp.
Definition: pixfmt.h:74
struct SwsContext * pre_filter_context
Definition: vf_sab.c:39
#define PRE_FILTER_RADIUS_MAX
Definition: vf_sab.c:78
FilterParam luma
Definition: vf_sab.c:51
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
#define STRENGTH_MIN
Definition: vf_sab.c:80
int dist_width
Definition: vf_sab.c:42
A list of supported formats for one end of a filter link.
Definition: formats.h:64
An instance of a filter.
Definition: avfilter.h:338
static int open_filter_param(FilterParam *f, int width, int height, unsigned int sws_flags)
Definition: vf_sab.c:149
static av_cold int init(AVFilterContext *ctx)
Definition: vf_sab.c:108
#define av_freep(p)
int * dist_coeff
Definition: vf_sab.c:44
#define av_malloc_array(a, b)
#define OFFSET(x)
Definition: vf_sab.c:83
internal API functions
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
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_sab.c:141
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654
#define NB_PLANES
Definition: vf_sab.c:222
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58