FFmpeg
vf_spp.c
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1 /*
2  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
3  * Copyright (c) 2013 Clément Bœsch <u pkh me>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20  */
21 
22 /**
23  * @file
24  * Simple post processing filter
25  *
26  * This implementation is based on an algorithm described in
27  * "Aria Nosratinia Embedded Post-Processing for
28  * Enhancement of Compressed Images (1999)"
29  *
30  * Originally written by Michael Niedermayer for the MPlayer project, and
31  * ported by Clément Bœsch for FFmpeg.
32  */
33 
34 #include "libavutil/avassert.h"
35 #include "libavutil/imgutils.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/pixdesc.h"
38 #include "internal.h"
39 #include "vf_spp.h"
40 
41 enum mode {
45 };
46 
47 static const AVClass *child_class_next(const AVClass *prev)
48 {
49  return prev ? NULL : avcodec_dct_get_class();
50 }
51 
52 static void *child_next(void *obj, void *prev)
53 {
54  SPPContext *s = obj;
55  return prev ? NULL : s->dct;
56 }
57 
58 #define OFFSET(x) offsetof(SPPContext, x)
59 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
60 static const AVOption spp_options[] = {
61  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
62  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
63  { "mode", "set thresholding mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = MODE_HARD}, 0, NB_MODES - 1, FLAGS, "mode" },
64  { "hard", "hard thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_HARD}, INT_MIN, INT_MAX, FLAGS, "mode" },
65  { "soft", "soft thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_SOFT}, INT_MIN, INT_MAX, FLAGS, "mode" },
66  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS },
67  { NULL }
68 };
69 
70 static const AVClass spp_class = {
71  .class_name = "spp",
72  .item_name = av_default_item_name,
73  .option = spp_options,
74  .version = LIBAVUTIL_VERSION_INT,
75  .category = AV_CLASS_CATEGORY_FILTER,
76  .child_class_next = child_class_next,
78 };
79 
80 // XXX: share between filters?
81 DECLARE_ALIGNED(8, static const uint8_t, ldither)[8][8] = {
82  { 0, 48, 12, 60, 3, 51, 15, 63 },
83  { 32, 16, 44, 28, 35, 19, 47, 31 },
84  { 8, 56, 4, 52, 11, 59, 7, 55 },
85  { 40, 24, 36, 20, 43, 27, 39, 23 },
86  { 2, 50, 14, 62, 1, 49, 13, 61 },
87  { 34, 18, 46, 30, 33, 17, 45, 29 },
88  { 10, 58, 6, 54, 9, 57, 5, 53 },
89  { 42, 26, 38, 22, 41, 25, 37, 21 },
90 };
91 
92 static const uint8_t offset[127][2] = {
93  {0,0},
94  {0,0}, {4,4}, // quality = 1
95  {0,0}, {2,2}, {6,4}, {4,6}, // quality = 2
96  {0,0}, {5,1}, {2,2}, {7,3}, {4,4}, {1,5}, {6,6}, {3,7}, // quality = 3
97 
98  {0,0}, {4,0}, {1,1}, {5,1}, {3,2}, {7,2}, {2,3}, {6,3}, // quality = 4
99  {0,4}, {4,4}, {1,5}, {5,5}, {3,6}, {7,6}, {2,7}, {6,7},
100 
101  {0,0}, {0,2}, {0,4}, {0,6}, {1,1}, {1,3}, {1,5}, {1,7}, // quality = 5
102  {2,0}, {2,2}, {2,4}, {2,6}, {3,1}, {3,3}, {3,5}, {3,7},
103  {4,0}, {4,2}, {4,4}, {4,6}, {5,1}, {5,3}, {5,5}, {5,7},
104  {6,0}, {6,2}, {6,4}, {6,6}, {7,1}, {7,3}, {7,5}, {7,7},
105 
106  {0,0}, {4,4}, {0,4}, {4,0}, {2,2}, {6,6}, {2,6}, {6,2}, // quality = 6
107  {0,2}, {4,6}, {0,6}, {4,2}, {2,0}, {6,4}, {2,4}, {6,0},
108  {1,1}, {5,5}, {1,5}, {5,1}, {3,3}, {7,7}, {3,7}, {7,3},
109  {1,3}, {5,7}, {1,7}, {5,3}, {3,1}, {7,5}, {3,5}, {7,1},
110  {0,1}, {4,5}, {0,5}, {4,1}, {2,3}, {6,7}, {2,7}, {6,3},
111  {0,3}, {4,7}, {0,7}, {4,3}, {2,1}, {6,5}, {2,5}, {6,1},
112  {1,0}, {5,4}, {1,4}, {5,0}, {3,2}, {7,6}, {3,6}, {7,2},
113  {1,2}, {5,6}, {1,6}, {5,2}, {3,0}, {7,4}, {3,4}, {7,0},
114 };
115 
116 static void hardthresh_c(int16_t dst[64], const int16_t src[64],
117  int qp, const uint8_t *permutation)
118 {
119  int i;
120  int bias = 0; // FIXME
121 
122  unsigned threshold1 = qp * ((1<<4) - bias) - 1;
123  unsigned threshold2 = threshold1 << 1;
124 
125  memset(dst, 0, 64 * sizeof(dst[0]));
126  dst[0] = (src[0] + 4) >> 3;
127 
128  for (i = 1; i < 64; i++) {
129  int level = src[i];
130  if (((unsigned)(level + threshold1)) > threshold2) {
131  const int j = permutation[i];
132  dst[j] = (level + 4) >> 3;
133  }
134  }
135 }
136 
137 static void softthresh_c(int16_t dst[64], const int16_t src[64],
138  int qp, const uint8_t *permutation)
139 {
140  int i;
141  int bias = 0; //FIXME
142 
143  unsigned threshold1 = qp * ((1<<4) - bias) - 1;
144  unsigned threshold2 = threshold1 << 1;
145 
146  memset(dst, 0, 64 * sizeof(dst[0]));
147  dst[0] = (src[0] + 4) >> 3;
148 
149  for (i = 1; i < 64; i++) {
150  int level = src[i];
151  if (((unsigned)(level + threshold1)) > threshold2) {
152  const int j = permutation[i];
153  if (level > 0) dst[j] = (level - threshold1 + 4) >> 3;
154  else dst[j] = (level + threshold1 + 4) >> 3;
155  }
156  }
157 }
158 
159 static void store_slice_c(uint8_t *dst, const int16_t *src,
160  int dst_linesize, int src_linesize,
161  int width, int height, int log2_scale,
162  const uint8_t dither[8][8])
163 {
164  int y, x;
165 
166 #define STORE(pos) do { \
167  temp = ((src[x + y*src_linesize + pos] << log2_scale) + d[pos]) >> 6; \
168  if (temp & 0x100) \
169  temp = ~(temp >> 31); \
170  dst[x + y*dst_linesize + pos] = temp; \
171 } while (0)
172 
173  for (y = 0; y < height; y++) {
174  const uint8_t *d = dither[y];
175  for (x = 0; x < width; x += 8) {
176  int temp;
177  STORE(0);
178  STORE(1);
179  STORE(2);
180  STORE(3);
181  STORE(4);
182  STORE(5);
183  STORE(6);
184  STORE(7);
185  }
186  }
187 }
188 
189 static void store_slice16_c(uint16_t *dst, const int16_t *src,
190  int dst_linesize, int src_linesize,
191  int width, int height, int log2_scale,
192  const uint8_t dither[8][8], int depth)
193 {
194  int y, x;
195  unsigned int mask = -1<<depth;
196 
197 #define STORE16(pos) do { \
198  temp = ((src[x + y*src_linesize + pos] << log2_scale) + (d[pos]>>1)) >> 5; \
199  if (temp & mask ) \
200  temp = ~(temp >> 31); \
201  dst[x + y*dst_linesize + pos] = temp; \
202 } while (0)
203 
204  for (y = 0; y < height; y++) {
205  const uint8_t *d = dither[y];
206  for (x = 0; x < width; x += 8) {
207  int temp;
208  STORE16(0);
209  STORE16(1);
210  STORE16(2);
211  STORE16(3);
212  STORE16(4);
213  STORE16(5);
214  STORE16(6);
215  STORE16(7);
216  }
217  }
218 }
219 
220 static inline void add_block(uint16_t *dst, int linesize, const int16_t block[64])
221 {
222  int y;
223 
224  for (y = 0; y < 8; y++) {
225  *(uint32_t *)&dst[0 + y*linesize] += *(uint32_t *)&block[0 + y*8];
226  *(uint32_t *)&dst[2 + y*linesize] += *(uint32_t *)&block[2 + y*8];
227  *(uint32_t *)&dst[4 + y*linesize] += *(uint32_t *)&block[4 + y*8];
228  *(uint32_t *)&dst[6 + y*linesize] += *(uint32_t *)&block[6 + y*8];
229  }
230 }
231 
232 static void filter(SPPContext *p, uint8_t *dst, uint8_t *src,
233  int dst_linesize, int src_linesize, int width, int height,
234  const uint8_t *qp_table, int qp_stride, int is_luma, int depth)
235 {
236  int x, y, i;
237  const int count = 1 << p->log2_count;
238  const int linesize = is_luma ? p->temp_linesize : FFALIGN(width+16, 16);
239  DECLARE_ALIGNED(16, uint64_t, block_align)[32];
240  int16_t *block = (int16_t *)block_align;
241  int16_t *block2 = (int16_t *)(block_align + 16);
242  uint16_t *psrc16 = (uint16_t*)p->src;
243  const int sample_bytes = (depth+7) / 8;
244 
245  for (y = 0; y < height; y++) {
246  int index = 8 + 8*linesize + y*linesize;
247  memcpy(p->src + index*sample_bytes, src + y*src_linesize, width*sample_bytes);
248  if (sample_bytes == 1) {
249  for (x = 0; x < 8; x++) {
250  p->src[index - x - 1] = p->src[index + x ];
251  p->src[index + width + x ] = p->src[index + width - x - 1];
252  }
253  } else {
254  for (x = 0; x < 8; x++) {
255  psrc16[index - x - 1] = psrc16[index + x ];
256  psrc16[index + width + x ] = psrc16[index + width - x - 1];
257  }
258  }
259  }
260  for (y = 0; y < 8; y++) {
261  memcpy(p->src + ( 7-y)*linesize * sample_bytes, p->src + ( y+8)*linesize * sample_bytes, linesize * sample_bytes);
262  memcpy(p->src + (height+8+y)*linesize * sample_bytes, p->src + (height-y+7)*linesize * sample_bytes, linesize * sample_bytes);
263  }
264 
265  for (y = 0; y < height + 8; y += 8) {
266  memset(p->temp + (8 + y) * linesize, 0, 8 * linesize * sizeof(*p->temp));
267  for (x = 0; x < width + 8; x += 8) {
268  int qp;
269 
270  if (p->qp) {
271  qp = p->qp;
272  } else{
273  const int qps = 3 + is_luma;
274  qp = qp_table[(FFMIN(x, width - 1) >> qps) + (FFMIN(y, height - 1) >> qps) * qp_stride];
275  qp = FFMAX(1, ff_norm_qscale(qp, p->qscale_type));
276  }
277  for (i = 0; i < count; i++) {
278  const int x1 = x + offset[i + count - 1][0];
279  const int y1 = y + offset[i + count - 1][1];
280  const int index = x1 + y1*linesize;
281  p->dct->get_pixels(block, p->src + sample_bytes*index, sample_bytes*linesize);
282  p->dct->fdct(block);
283  p->requantize(block2, block, qp, p->dct->idct_permutation);
284  p->dct->idct(block2);
285  add_block(p->temp + index, linesize, block2);
286  }
287  }
288  if (y) {
289  if (sample_bytes == 1) {
290  p->store_slice(dst + (y - 8) * dst_linesize, p->temp + 8 + y*linesize,
291  dst_linesize, linesize, width,
292  FFMIN(8, height + 8 - y), MAX_LEVEL - p->log2_count,
293  ldither);
294  } else {
295  store_slice16_c((uint16_t*)(dst + (y - 8) * dst_linesize), p->temp + 8 + y*linesize,
296  dst_linesize/2, linesize, width,
297  FFMIN(8, height + 8 - y), MAX_LEVEL - p->log2_count,
298  ldither, depth);
299  }
300  }
301  }
302 }
303 
305 {
306  static const enum AVPixelFormat pix_fmts[] = {
321  };
322 
323  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
324  if (!fmts_list)
325  return AVERROR(ENOMEM);
326  return ff_set_common_formats(ctx, fmts_list);
327 }
328 
330 {
331  SPPContext *s = inlink->dst->priv;
332  const int h = FFALIGN(inlink->h + 16, 16);
334  const int bps = desc->comp[0].depth;
335 
336  av_opt_set_int(s->dct, "bits_per_sample", bps, 0);
337  avcodec_dct_init(s->dct);
338 
339  if (ARCH_X86)
340  ff_spp_init_x86(s);
341 
342  s->hsub = desc->log2_chroma_w;
343  s->vsub = desc->log2_chroma_h;
344  s->temp_linesize = FFALIGN(inlink->w + 16, 16);
345  s->temp = av_malloc_array(s->temp_linesize, h * sizeof(*s->temp));
346  s->src = av_malloc_array(s->temp_linesize, h * sizeof(*s->src) * 2);
347 
348  if (!s->temp || !s->src)
349  return AVERROR(ENOMEM);
350  return 0;
351 }
352 
354 {
355  AVFilterContext *ctx = inlink->dst;
356  SPPContext *s = ctx->priv;
357  AVFilterLink *outlink = ctx->outputs[0];
358  AVFrame *out = in;
359  int qp_stride = 0;
360  const int8_t *qp_table = NULL;
362  const int depth = desc->comp[0].depth;
363 
364  /* if we are not in a constant user quantizer mode and we don't want to use
365  * the quantizers from the B-frames (B-frames often have a higher QP), we
366  * need to save the qp table from the last non B-frame; this is what the
367  * following code block does */
368  if (!s->qp) {
369  qp_table = av_frame_get_qp_table(in, &qp_stride, &s->qscale_type);
370 
371  if (qp_table && !s->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
372  int w, h;
373 
374  /* if the qp stride is not set, it means the QP are only defined on
375  * a line basis */
376  if (!qp_stride) {
377  w = AV_CEIL_RSHIFT(inlink->w, 4);
378  h = 1;
379  } else {
380  w = qp_stride;
381  h = AV_CEIL_RSHIFT(inlink->h, 4);
382  }
383 
384  if (w * h > s->non_b_qp_alloc_size) {
385  int ret = av_reallocp_array(&s->non_b_qp_table, w, h);
386  if (ret < 0) {
387  s->non_b_qp_alloc_size = 0;
388  return ret;
389  }
390  s->non_b_qp_alloc_size = w * h;
391  }
392 
393  av_assert0(w * h <= s->non_b_qp_alloc_size);
394  memcpy(s->non_b_qp_table, qp_table, w * h);
395  }
396  }
397 
398  if (s->log2_count && !ctx->is_disabled) {
399  if (!s->use_bframe_qp && s->non_b_qp_table)
400  qp_table = s->non_b_qp_table;
401 
402  if (qp_table || s->qp) {
403  const int cw = AV_CEIL_RSHIFT(inlink->w, s->hsub);
404  const int ch = AV_CEIL_RSHIFT(inlink->h, s->vsub);
405 
406  /* get a new frame if in-place is not possible or if the dimensions
407  * are not multiple of 8 */
408  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
409  const int aligned_w = FFALIGN(inlink->w, 8);
410  const int aligned_h = FFALIGN(inlink->h, 8);
411 
412  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
413  if (!out) {
414  av_frame_free(&in);
415  return AVERROR(ENOMEM);
416  }
417  av_frame_copy_props(out, in);
418  out->width = in->width;
419  out->height = in->height;
420  }
421 
422  filter(s, out->data[0], in->data[0], out->linesize[0], in->linesize[0], inlink->w, inlink->h, qp_table, qp_stride, 1, depth);
423 
424  if (out->data[2]) {
425  filter(s, out->data[1], in->data[1], out->linesize[1], in->linesize[1], cw, ch, qp_table, qp_stride, 0, depth);
426  filter(s, out->data[2], in->data[2], out->linesize[2], in->linesize[2], cw, ch, qp_table, qp_stride, 0, depth);
427  }
428  emms_c();
429  }
430  }
431 
432  if (in != out) {
433  if (in->data[3])
434  av_image_copy_plane(out->data[3], out->linesize[3],
435  in ->data[3], in ->linesize[3],
436  inlink->w, inlink->h);
437  av_frame_free(&in);
438  }
439  return ff_filter_frame(outlink, out);
440 }
441 
442 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
443  char *res, int res_len, int flags)
444 {
445  SPPContext *s = ctx->priv;
446 
447  if (!strcmp(cmd, "level")) {
448  if (!strcmp(args, "max"))
449  s->log2_count = MAX_LEVEL;
450  else
451  s->log2_count = av_clip(strtol(args, NULL, 10), 0, MAX_LEVEL);
452  return 0;
453  }
454  return AVERROR(ENOSYS);
455 }
456 
458 {
459  SPPContext *s = ctx->priv;
460  int ret;
461 
463  s->dct = avcodec_dct_alloc();
464  if (!s->avctx || !s->dct)
465  return AVERROR(ENOMEM);
466 
467  if (opts) {
468  AVDictionaryEntry *e = NULL;
469 
470  while ((e = av_dict_get(*opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
471  if ((ret = av_opt_set(s->dct, e->key, e->value, 0)) < 0)
472  return ret;
473  }
474  av_dict_free(opts);
475  }
476 
478  switch (s->mode) {
479  case MODE_HARD: s->requantize = hardthresh_c; break;
480  case MODE_SOFT: s->requantize = softthresh_c; break;
481  }
482  return 0;
483 }
484 
486 {
487  SPPContext *s = ctx->priv;
488 
489  av_freep(&s->temp);
490  av_freep(&s->src);
491  if (s->avctx) {
492  avcodec_close(s->avctx);
493  av_freep(&s->avctx);
494  }
495  av_freep(&s->dct);
497 }
498 
499 static const AVFilterPad spp_inputs[] = {
500  {
501  .name = "default",
502  .type = AVMEDIA_TYPE_VIDEO,
503  .config_props = config_input,
504  .filter_frame = filter_frame,
505  },
506  { NULL }
507 };
508 
509 static const AVFilterPad spp_outputs[] = {
510  {
511  .name = "default",
512  .type = AVMEDIA_TYPE_VIDEO,
513  },
514  { NULL }
515 };
516 
518  .name = "spp",
519  .description = NULL_IF_CONFIG_SMALL("Apply a simple post processing filter."),
520  .priv_size = sizeof(SPPContext),
521  .init_dict = init_dict,
522  .uninit = uninit,
524  .inputs = spp_inputs,
525  .outputs = spp_outputs,
527  .priv_class = &spp_class,
529 };
#define STORE16(pos)
void(* store_slice)(uint8_t *dst, const int16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale, const uint8_t dither[8][8])
Definition: vf_spp.h:48
#define NULL
Definition: coverity.c:32
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
int use_bframe_qp
Definition: vf_spp.h:45
AVOption.
Definition: opt.h:246
av_cold void ff_spp_init_x86(SPPContext *s)
Definition: vf_spp.c:221
static int query_formats(AVFilterContext *ctx)
Definition: vf_spp.c:304
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
int hsub
Definition: vf_spp.h:46
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
else temp
Definition: vf_mcdeint.c:256
const char * desc
Definition: nvenc.c:68
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_spp.c:353
AVCodecContext * avctx
Definition: vf_spp.h:41
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
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
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:403
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_spp.c:442
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
#define src
Definition: vp8dsp.c:254
static const uint8_t ldither[8][8]
Definition: vf_spp.c:81
static void softthresh_c(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
Definition: vf_spp.c:137
int is_disabled
the enabled state from the last expression evaluation
Definition: avfilter.h:385
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
const char * name
Pad name.
Definition: internal.h:60
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_spp.c:485
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
int log2_count
Definition: vf_spp.h:34
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
The exact code depends on how similar the blocks are and how related they are to the block
uint8_t
#define av_cold
Definition: attributes.h:82
static void store_slice16_c(uint16_t *dst, const int16_t *src, int dst_linesize, int src_linesize, int width, int height, int log2_scale, const uint8_t dither[8][8], int depth)
Definition: vf_spp.c:189
AVOptions.
#define OFFSET(x)
Definition: vf_spp.c:58
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:402
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:112
#define height
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
static void add_block(uint16_t *dst, int linesize, const int16_t block[64])
Definition: vf_spp.c:220
int non_b_qp_alloc_size
Definition: vf_spp.h:44
#define FFALIGN(x, a)
Definition: macros.h:48
#define MAX_LEVEL
Definition: rl.h:36
static const AVClass * child_class_next(const AVClass *prev)
Definition: vf_spp.c:47
A filter pad used for either input or output.
Definition: internal.h:54
void *(* child_next)(void *obj, void *prev)
Return next AVOptions-enabled child or NULL.
Definition: log.h:113
int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
Definition: utils.c:1081
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
int width
Definition: frame.h:353
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 const uint16_t mask[17]
Definition: lzw.c:38
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
static const uint8_t dither[8][8]
Definition: vf_fspp.c:57
void * priv
private data for use by the filter
Definition: avfilter.h:353
int temp_linesize
Definition: vf_spp.h:38
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
Definition: opt.c:568
simple assert() macros that are a bit more flexible than ISO C assert().
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
static const uint8_t offset[127][2]
Definition: vf_spp.c:92
GLsizei count
Definition: opengl_enc.c:108
int avcodec_dct_init(AVDCT *dsp)
Definition: avdct.c:88
#define FFMAX(a, b)
Definition: common.h:94
static const AVClass spp_class
Definition: vf_spp.c:70
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array through a pointer to a pointer.
Definition: mem.c:205
int8_t * non_b_qp_table
Definition: vf_spp.h:43
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:385
AVDictionary * opts
Definition: movenc.c:50
AVDCT * avcodec_dct_alloc(void)
Allocates a AVDCT context.
Definition: avdct.c:75
uint8_t idct_permutation[64]
IDCT input permutation.
Definition: avdct.h:48
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:378
#define FFMIN(a, b)
Definition: common.h:96
static void hardthresh_c(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
Definition: vf_spp.c:116
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:156
#define width
uint8_t w
Definition: llviddspenc.c:38
static int config_input(AVFilterLink *inlink)
Definition: vf_spp.c:329
AVFormatContext * ctx
Definition: movenc.c:48
#define s(width, name)
Definition: cbs_vp9.c:257
int qscale_type
Definition: vf_spp.h:37
static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts)
Definition: vf_spp.c:457
AVDCT * dct
Definition: vf_spp.h:42
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:386
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
const AVClass * avcodec_dct_get_class(void)
Definition: avdct.c:70
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:594
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
static const AVFilterPad spp_outputs[]
Definition: vf_spp.c:509
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
void(* get_pixels)(int16_t *block, const uint8_t *pixels, ptrdiff_t line_size)
Definition: avdct.h:65
void(* idct)(int16_t *block)
Definition: avdct.h:32
#define STORE(pos)
int vsub
Definition: vf_spp.h:46
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
uint16_t * temp
Definition: vf_spp.h:40
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
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:387
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
int qp
Definition: vf_spp.h:35
Filter definition.
Definition: avfilter.h:144
int index
Definition: gxfenc.c:89
void(* fdct)(int16_t *block)
Definition: avdct.h:50
#define FLAGS
Definition: vf_spp.c:59
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:384
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:133
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static const AVFilterPad spp_inputs[]
Definition: vf_spp.c:499
static int ff_norm_qscale(int qscale, int type)
Normalize the qscale factor FIXME the H264 qscale is a log based scale, mpeg1/2 is not...
Definition: internal.h:397
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
void(* requantize)(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
Definition: vf_spp.h:53
#define flags(name, subs,...)
Definition: cbs_av1.c:561
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:388
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
uint8_t level
Definition: svq3.c:207
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
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
Y , 8bpp.
Definition: pixfmt.h:74
static void * child_next(void *obj, void *prev)
Definition: vf_spp.c:52
int mode
Definition: vf_spp.h:36
Bi-dir predicted.
Definition: avutil.h:276
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
char * key
Definition: dict.h:86
unsigned bps
Definition: movenc.c:1532
AVFilter ff_vf_spp
Definition: vf_spp.c:517
static void store_slice_c(uint8_t *dst, const int16_t *src, int dst_linesize, int src_linesize, int width, int height, int log2_scale, const uint8_t dither[8][8])
Definition: vf_spp.c:159
char * value
Definition: dict.h:87
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
int height
Definition: frame.h:353
FILE * out
Definition: movenc.c:54
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
Definition: dict.h:70
#define av_malloc_array(a, b)
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:338
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
int depth
Number of bits in the component.
Definition: pixdesc.h:58
int8_t * av_frame_get_qp_table(AVFrame *f, int *stride, int *type)
Definition: frame.c:90
static const AVOption spp_options[]
Definition: vf_spp.c:60
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:449
mode
Use these values in ebur128_init (or&#39;ed).
Definition: ebur128.h:83
static void filter(SPPContext *p, uint8_t *dst, uint8_t *src, int dst_linesize, int src_linesize, int width, int height, const uint8_t *qp_table, int qp_stride, int is_luma, int depth)
Definition: vf_spp.c:232
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654
uint8_t * src
Definition: vf_spp.h:39
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58