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 #define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
61 static const AVOption spp_options[] = {
62  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, TFLAGS },
63  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
64  { "mode", "set thresholding mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = MODE_HARD}, 0, NB_MODES - 1, FLAGS, "mode" },
65  { "hard", "hard thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_HARD}, INT_MIN, INT_MAX, FLAGS, "mode" },
66  { "soft", "soft thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_SOFT}, INT_MIN, INT_MAX, FLAGS, "mode" },
67  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS },
68  { NULL }
69 };
70 
71 static const AVClass spp_class = {
72  .class_name = "spp",
73  .item_name = av_default_item_name,
74  .option = spp_options,
75  .version = LIBAVUTIL_VERSION_INT,
76  .category = AV_CLASS_CATEGORY_FILTER,
77  .child_class_next = child_class_next,
79 };
80 
81 // XXX: share between filters?
82 DECLARE_ALIGNED(8, static const uint8_t, ldither)[8][8] = {
83  { 0, 48, 12, 60, 3, 51, 15, 63 },
84  { 32, 16, 44, 28, 35, 19, 47, 31 },
85  { 8, 56, 4, 52, 11, 59, 7, 55 },
86  { 40, 24, 36, 20, 43, 27, 39, 23 },
87  { 2, 50, 14, 62, 1, 49, 13, 61 },
88  { 34, 18, 46, 30, 33, 17, 45, 29 },
89  { 10, 58, 6, 54, 9, 57, 5, 53 },
90  { 42, 26, 38, 22, 41, 25, 37, 21 },
91 };
92 
93 static const uint8_t offset[127][2] = {
94  {0,0},
95  {0,0}, {4,4}, // quality = 1
96  {0,0}, {2,2}, {6,4}, {4,6}, // quality = 2
97  {0,0}, {5,1}, {2,2}, {7,3}, {4,4}, {1,5}, {6,6}, {3,7}, // quality = 3
98 
99  {0,0}, {4,0}, {1,1}, {5,1}, {3,2}, {7,2}, {2,3}, {6,3}, // quality = 4
100  {0,4}, {4,4}, {1,5}, {5,5}, {3,6}, {7,6}, {2,7}, {6,7},
101 
102  {0,0}, {0,2}, {0,4}, {0,6}, {1,1}, {1,3}, {1,5}, {1,7}, // quality = 5
103  {2,0}, {2,2}, {2,4}, {2,6}, {3,1}, {3,3}, {3,5}, {3,7},
104  {4,0}, {4,2}, {4,4}, {4,6}, {5,1}, {5,3}, {5,5}, {5,7},
105  {6,0}, {6,2}, {6,4}, {6,6}, {7,1}, {7,3}, {7,5}, {7,7},
106 
107  {0,0}, {4,4}, {0,4}, {4,0}, {2,2}, {6,6}, {2,6}, {6,2}, // quality = 6
108  {0,2}, {4,6}, {0,6}, {4,2}, {2,0}, {6,4}, {2,4}, {6,0},
109  {1,1}, {5,5}, {1,5}, {5,1}, {3,3}, {7,7}, {3,7}, {7,3},
110  {1,3}, {5,7}, {1,7}, {5,3}, {3,1}, {7,5}, {3,5}, {7,1},
111  {0,1}, {4,5}, {0,5}, {4,1}, {2,3}, {6,7}, {2,7}, {6,3},
112  {0,3}, {4,7}, {0,7}, {4,3}, {2,1}, {6,5}, {2,5}, {6,1},
113  {1,0}, {5,4}, {1,4}, {5,0}, {3,2}, {7,6}, {3,6}, {7,2},
114  {1,2}, {5,6}, {1,6}, {5,2}, {3,0}, {7,4}, {3,4}, {7,0},
115 };
116 
117 static void hardthresh_c(int16_t dst[64], const int16_t src[64],
118  int qp, const uint8_t *permutation)
119 {
120  int i;
121  int bias = 0; // FIXME
122 
123  unsigned threshold1 = qp * ((1<<4) - bias) - 1;
124  unsigned threshold2 = threshold1 << 1;
125 
126  memset(dst, 0, 64 * sizeof(dst[0]));
127  dst[0] = (src[0] + 4) >> 3;
128 
129  for (i = 1; i < 64; i++) {
130  int level = src[i];
131  if (((unsigned)(level + threshold1)) > threshold2) {
132  const int j = permutation[i];
133  dst[j] = (level + 4) >> 3;
134  }
135  }
136 }
137 
138 static void softthresh_c(int16_t dst[64], const int16_t src[64],
139  int qp, const uint8_t *permutation)
140 {
141  int i;
142  int bias = 0; //FIXME
143 
144  unsigned threshold1 = qp * ((1<<4) - bias) - 1;
145  unsigned threshold2 = threshold1 << 1;
146 
147  memset(dst, 0, 64 * sizeof(dst[0]));
148  dst[0] = (src[0] + 4) >> 3;
149 
150  for (i = 1; i < 64; i++) {
151  int level = src[i];
152  if (((unsigned)(level + threshold1)) > threshold2) {
153  const int j = permutation[i];
154  if (level > 0) dst[j] = (level - threshold1 + 4) >> 3;
155  else dst[j] = (level + threshold1 + 4) >> 3;
156  }
157  }
158 }
159 
160 static void store_slice_c(uint8_t *dst, const int16_t *src,
161  int dst_linesize, int src_linesize,
162  int width, int height, int log2_scale,
163  const uint8_t dither[8][8])
164 {
165  int y, x;
166 
167 #define STORE(pos) do { \
168  temp = ((src[x + y*src_linesize + pos] << log2_scale) + d[pos]) >> 6; \
169  if (temp & 0x100) \
170  temp = ~(temp >> 31); \
171  dst[x + y*dst_linesize + pos] = temp; \
172 } while (0)
173 
174  for (y = 0; y < height; y++) {
175  const uint8_t *d = dither[y];
176  for (x = 0; x < width; x += 8) {
177  int temp;
178  STORE(0);
179  STORE(1);
180  STORE(2);
181  STORE(3);
182  STORE(4);
183  STORE(5);
184  STORE(6);
185  STORE(7);
186  }
187  }
188 }
189 
190 static void store_slice16_c(uint16_t *dst, const int16_t *src,
191  int dst_linesize, int src_linesize,
192  int width, int height, int log2_scale,
193  const uint8_t dither[8][8], int depth)
194 {
195  int y, x;
196  unsigned int mask = -1<<depth;
197 
198 #define STORE16(pos) do { \
199  temp = ((src[x + y*src_linesize + pos] << log2_scale) + (d[pos]>>1)) >> 5; \
200  if (temp & mask ) \
201  temp = ~(temp >> 31); \
202  dst[x + y*dst_linesize + pos] = temp; \
203 } while (0)
204 
205  for (y = 0; y < height; y++) {
206  const uint8_t *d = dither[y];
207  for (x = 0; x < width; x += 8) {
208  int temp;
209  STORE16(0);
210  STORE16(1);
211  STORE16(2);
212  STORE16(3);
213  STORE16(4);
214  STORE16(5);
215  STORE16(6);
216  STORE16(7);
217  }
218  }
219 }
220 
221 static inline void add_block(uint16_t *dst, int linesize, const int16_t block[64])
222 {
223  int y;
224 
225  for (y = 0; y < 8; y++) {
226  dst[0 + y*linesize] += block[0 + y*8];
227  dst[1 + y*linesize] += block[1 + y*8];
228  dst[2 + y*linesize] += block[2 + y*8];
229  dst[3 + y*linesize] += block[3 + y*8];
230  dst[4 + y*linesize] += block[4 + y*8];
231  dst[5 + y*linesize] += block[5 + y*8];
232  dst[6 + y*linesize] += block[6 + y*8];
233  dst[7 + y*linesize] += block[7 + y*8];
234  }
235 }
236 
237 static void filter(SPPContext *p, uint8_t *dst, uint8_t *src,
238  int dst_linesize, int src_linesize, int width, int height,
239  const uint8_t *qp_table, int qp_stride, int is_luma, int depth)
240 {
241  int x, y, i;
242  const int count = 1 << p->log2_count;
243  const int linesize = is_luma ? p->temp_linesize : FFALIGN(width+16, 16);
244  DECLARE_ALIGNED(16, uint64_t, block_align)[32];
245  int16_t *block = (int16_t *)block_align;
246  int16_t *block2 = (int16_t *)(block_align + 16);
247  uint16_t *psrc16 = (uint16_t*)p->src;
248  const int sample_bytes = (depth+7) / 8;
249 
250  for (y = 0; y < height; y++) {
251  int index = 8 + 8*linesize + y*linesize;
252  memcpy(p->src + index*sample_bytes, src + y*src_linesize, width*sample_bytes);
253  if (sample_bytes == 1) {
254  for (x = 0; x < 8; x++) {
255  p->src[index - x - 1] = p->src[index + x ];
256  p->src[index + width + x ] = p->src[index + width - x - 1];
257  }
258  } else {
259  for (x = 0; x < 8; x++) {
260  psrc16[index - x - 1] = psrc16[index + x ];
261  psrc16[index + width + x ] = psrc16[index + width - x - 1];
262  }
263  }
264  }
265  for (y = 0; y < 8; y++) {
266  memcpy(p->src + ( 7-y)*linesize * sample_bytes, p->src + ( y+8)*linesize * sample_bytes, linesize * sample_bytes);
267  memcpy(p->src + (height+8+y)*linesize * sample_bytes, p->src + (height-y+7)*linesize * sample_bytes, linesize * sample_bytes);
268  }
269 
270  for (y = 0; y < height + 8; y += 8) {
271  memset(p->temp + (8 + y) * linesize, 0, 8 * linesize * sizeof(*p->temp));
272  for (x = 0; x < width + 8; x += 8) {
273  int qp;
274 
275  if (p->qp) {
276  qp = p->qp;
277  } else{
278  const int qps = 3 + is_luma;
279  qp = qp_table[(FFMIN(x, width - 1) >> qps) + (FFMIN(y, height - 1) >> qps) * qp_stride];
280  qp = FFMAX(1, ff_norm_qscale(qp, p->qscale_type));
281  }
282  for (i = 0; i < count; i++) {
283  const int x1 = x + offset[i + count - 1][0];
284  const int y1 = y + offset[i + count - 1][1];
285  const int index = x1 + y1*linesize;
286  p->dct->get_pixels_unaligned(block, p->src + sample_bytes*index, sample_bytes*linesize);
287  p->dct->fdct(block);
288  p->requantize(block2, block, qp, p->dct->idct_permutation);
289  p->dct->idct(block2);
290  add_block(p->temp + index, linesize, block2);
291  }
292  }
293  if (y) {
294  if (sample_bytes == 1) {
295  p->store_slice(dst + (y - 8) * dst_linesize, p->temp + 8 + y*linesize,
296  dst_linesize, linesize, width,
297  FFMIN(8, height + 8 - y), MAX_LEVEL - p->log2_count,
298  ldither);
299  } else {
300  store_slice16_c((uint16_t*)(dst + (y - 8) * dst_linesize), p->temp + 8 + y*linesize,
301  dst_linesize/2, linesize, width,
302  FFMIN(8, height + 8 - y), MAX_LEVEL - p->log2_count,
303  ldither, depth);
304  }
305  }
306  }
307 }
308 
310 {
311  static const enum AVPixelFormat pix_fmts[] = {
326  };
327 
328  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
329  if (!fmts_list)
330  return AVERROR(ENOMEM);
331  return ff_set_common_formats(ctx, fmts_list);
332 }
333 
335 {
336  SPPContext *s = inlink->dst->priv;
337  const int h = FFALIGN(inlink->h + 16, 16);
339  const int bps = desc->comp[0].depth;
340 
341  av_opt_set_int(s->dct, "bits_per_sample", bps, 0);
342  avcodec_dct_init(s->dct);
343 
344  if (ARCH_X86)
345  ff_spp_init_x86(s);
346 
347  s->hsub = desc->log2_chroma_w;
348  s->vsub = desc->log2_chroma_h;
349  s->temp_linesize = FFALIGN(inlink->w + 16, 16);
350  s->temp = av_malloc_array(s->temp_linesize, h * sizeof(*s->temp));
351  s->src = av_malloc_array(s->temp_linesize, h * sizeof(*s->src) * 2);
352 
353  if (!s->temp || !s->src)
354  return AVERROR(ENOMEM);
355  return 0;
356 }
357 
359 {
360  AVFilterContext *ctx = inlink->dst;
361  SPPContext *s = ctx->priv;
362  AVFilterLink *outlink = ctx->outputs[0];
363  AVFrame *out = in;
364  int qp_stride = 0;
365  const int8_t *qp_table = NULL;
367  const int depth = desc->comp[0].depth;
368 
369  /* if we are not in a constant user quantizer mode and we don't want to use
370  * the quantizers from the B-frames (B-frames often have a higher QP), we
371  * need to save the qp table from the last non B-frame; this is what the
372  * following code block does */
373  if (!s->qp) {
374  qp_table = av_frame_get_qp_table(in, &qp_stride, &s->qscale_type);
375 
376  if (qp_table && !s->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
377  int w, h;
378 
379  /* if the qp stride is not set, it means the QP are only defined on
380  * a line basis */
381  if (!qp_stride) {
382  w = AV_CEIL_RSHIFT(inlink->w, 4);
383  h = 1;
384  } else {
385  w = qp_stride;
386  h = AV_CEIL_RSHIFT(inlink->h, 4);
387  }
388 
389  if (w * h > s->non_b_qp_alloc_size) {
390  int ret = av_reallocp_array(&s->non_b_qp_table, w, h);
391  if (ret < 0) {
392  s->non_b_qp_alloc_size = 0;
393  return ret;
394  }
395  s->non_b_qp_alloc_size = w * h;
396  }
397 
398  av_assert0(w * h <= s->non_b_qp_alloc_size);
399  memcpy(s->non_b_qp_table, qp_table, w * h);
400  }
401  }
402 
403  if (s->log2_count && !ctx->is_disabled) {
404  if (!s->use_bframe_qp && s->non_b_qp_table)
405  qp_table = s->non_b_qp_table;
406 
407  if (qp_table || s->qp) {
408  const int cw = AV_CEIL_RSHIFT(inlink->w, s->hsub);
409  const int ch = AV_CEIL_RSHIFT(inlink->h, s->vsub);
410 
411  /* get a new frame if in-place is not possible or if the dimensions
412  * are not multiple of 8 */
413  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
414  const int aligned_w = FFALIGN(inlink->w, 8);
415  const int aligned_h = FFALIGN(inlink->h, 8);
416 
417  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
418  if (!out) {
419  av_frame_free(&in);
420  return AVERROR(ENOMEM);
421  }
422  av_frame_copy_props(out, in);
423  out->width = in->width;
424  out->height = in->height;
425  }
426 
427  filter(s, out->data[0], in->data[0], out->linesize[0], in->linesize[0], inlink->w, inlink->h, qp_table, qp_stride, 1, depth);
428 
429  if (out->data[2]) {
430  filter(s, out->data[1], in->data[1], out->linesize[1], in->linesize[1], cw, ch, qp_table, qp_stride, 0, depth);
431  filter(s, out->data[2], in->data[2], out->linesize[2], in->linesize[2], cw, ch, qp_table, qp_stride, 0, depth);
432  }
433  emms_c();
434  }
435  }
436 
437  if (in != out) {
438  if (in->data[3])
439  av_image_copy_plane(out->data[3], out->linesize[3],
440  in ->data[3], in ->linesize[3],
441  inlink->w, inlink->h);
442  av_frame_free(&in);
443  }
444  return ff_filter_frame(outlink, out);
445 }
446 
447 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
448  char *res, int res_len, int flags)
449 {
450  SPPContext *s = ctx->priv;
451 
452  if (!strcmp(cmd, "level") || !strcmp(cmd, "quality")) {
453  if (!strcmp(args, "max"))
454  s->log2_count = MAX_LEVEL;
455  else
456  s->log2_count = av_clip(strtol(args, NULL, 10), 0, MAX_LEVEL);
457  return 0;
458  }
459  return AVERROR(ENOSYS);
460 }
461 
463 {
464  SPPContext *s = ctx->priv;
465  int ret;
466 
467  s->dct = avcodec_dct_alloc();
468  if (!s->dct)
469  return AVERROR(ENOMEM);
470 
471  if (opts) {
472  AVDictionaryEntry *e = NULL;
473 
474  while ((e = av_dict_get(*opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
475  if ((ret = av_opt_set(s->dct, e->key, e->value, 0)) < 0)
476  return ret;
477  }
478  av_dict_free(opts);
479  }
480 
482  switch (s->mode) {
483  case MODE_HARD: s->requantize = hardthresh_c; break;
484  case MODE_SOFT: s->requantize = softthresh_c; break;
485  }
486  return 0;
487 }
488 
490 {
491  SPPContext *s = ctx->priv;
492 
493  av_freep(&s->temp);
494  av_freep(&s->src);
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:46
#define NULL
Definition: coverity.c:32
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2549
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
int use_bframe_qp
Definition: vf_spp.h:43
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:309
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:44
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
else temp
Definition: vf_mcdeint.c:256
const char * desc
Definition: nvenc.c:78
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_spp.c:358
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:413
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_spp.c:447
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
static const uint8_t ldither[8][8]
Definition: vf_spp.c:82
static void softthresh_c(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
Definition: vf_spp.c:138
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:489
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:1075
int log2_count
Definition: vf_spp.h:33
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:88
void(* get_pixels_unaligned)(int16_t *block, const uint8_t *pixels, ptrdiff_t line_size)
Definition: avdct.h:71
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:190
AVOptions.
#define OFFSET(x)
Definition: vf_spp.c:58
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:412
#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:221
int non_b_qp_alloc_size
Definition: vf_spp.h:42
#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
#define src
Definition: vp8dsp.c:254
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
int width
Definition: frame.h:358
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:600
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:203
#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:37
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:586
simple assert() macros that are a bit more flexible than ISO C assert().
#define TFLAGS
Definition: vf_spp.c:60
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:400
static const uint8_t offset[127][2]
Definition: vf_spp.c:93
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:71
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:206
int8_t * non_b_qp_table
Definition: vf_spp.h:41
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:395
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:383
#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:117
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 width
uint8_t w
Definition: llviddspenc.c:38
static int config_input(AVFilterLink *inlink)
Definition: vf_spp.c:334
AVFormatContext * ctx
Definition: movenc.c:48
#define s(width, name)
Definition: cbs_vp9.c:257
int qscale_type
Definition: vf_spp.h:36
static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts)
Definition: vf_spp.c:462
AVDCT * dct
Definition: vf_spp.h:40
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:396
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:595
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:331
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(* idct)(int16_t *block)
Definition: avdct.h:32
#define STORE(pos)
int vsub
Definition: vf_spp.h:44
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:39
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:397
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:34
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:394
#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
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/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0/(UINT64_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 *(UINT64_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 *(UINT64_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 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:377
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:51
#define flags(name, subs,...)
Definition: cbs_av1.c:564
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:398
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:314
uint8_t level
Definition: svq3.c:209
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:35
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:1533
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:160
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:358
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:91
static const AVOption spp_options[]
Definition: vf_spp.c:61
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:465
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:237
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:659
uint8_t * src
Definition: vf_spp.h:38
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58