FFmpeg  4.4.6
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/mem_internal.h"
37 #include "libavutil/opt.h"
38 #include "libavutil/pixdesc.h"
39 #include "internal.h"
40 #include "qp_table.h"
41 #include "vf_spp.h"
42 
43 enum mode {
46  NB_MODES
47 };
48 
49 #if FF_API_CHILD_CLASS_NEXT
50 static const AVClass *child_class_next(const AVClass *prev)
51 {
52  return prev ? NULL : avcodec_dct_get_class();
53 }
54 #endif
55 
56 static const AVClass *child_class_iterate(void **iter)
57 {
58  const AVClass *c = *iter ? NULL : avcodec_dct_get_class();
59  *iter = (void*)(uintptr_t)c;
60  return c;
61 }
62 
63 static void *child_next(void *obj, void *prev)
64 {
65  SPPContext *s = obj;
66  return prev ? NULL : s->dct;
67 }
68 
69 #define OFFSET(x) offsetof(SPPContext, x)
70 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
71 #define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
72 static const AVOption spp_options[] = {
73  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, TFLAGS },
74  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
75  { "mode", "set thresholding mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = MODE_HARD}, 0, NB_MODES - 1, FLAGS, "mode" },
76  { "hard", "hard thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_HARD}, INT_MIN, INT_MAX, FLAGS, "mode" },
77  { "soft", "soft thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_SOFT}, INT_MIN, INT_MAX, FLAGS, "mode" },
78  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS },
79  { NULL }
80 };
81 
82 static const AVClass spp_class = {
83  .class_name = "spp",
84  .item_name = av_default_item_name,
85  .option = spp_options,
86  .version = LIBAVUTIL_VERSION_INT,
87  .category = AV_CLASS_CATEGORY_FILTER,
88 #if FF_API_CHILD_CLASS_NEXT
89  .child_class_next = child_class_next,
90 #endif
91  .child_class_iterate = child_class_iterate,
93 };
94 
95 // XXX: share between filters?
96 DECLARE_ALIGNED(8, static const uint8_t, ldither)[8][8] = {
97  { 0, 48, 12, 60, 3, 51, 15, 63 },
98  { 32, 16, 44, 28, 35, 19, 47, 31 },
99  { 8, 56, 4, 52, 11, 59, 7, 55 },
100  { 40, 24, 36, 20, 43, 27, 39, 23 },
101  { 2, 50, 14, 62, 1, 49, 13, 61 },
102  { 34, 18, 46, 30, 33, 17, 45, 29 },
103  { 10, 58, 6, 54, 9, 57, 5, 53 },
104  { 42, 26, 38, 22, 41, 25, 37, 21 },
105 };
106 
107 static const uint8_t offset[127][2] = {
108  {0,0},
109  {0,0}, {4,4}, // quality = 1
110  {0,0}, {2,2}, {6,4}, {4,6}, // quality = 2
111  {0,0}, {5,1}, {2,2}, {7,3}, {4,4}, {1,5}, {6,6}, {3,7}, // quality = 3
112 
113  {0,0}, {4,0}, {1,1}, {5,1}, {3,2}, {7,2}, {2,3}, {6,3}, // quality = 4
114  {0,4}, {4,4}, {1,5}, {5,5}, {3,6}, {7,6}, {2,7}, {6,7},
115 
116  {0,0}, {0,2}, {0,4}, {0,6}, {1,1}, {1,3}, {1,5}, {1,7}, // quality = 5
117  {2,0}, {2,2}, {2,4}, {2,6}, {3,1}, {3,3}, {3,5}, {3,7},
118  {4,0}, {4,2}, {4,4}, {4,6}, {5,1}, {5,3}, {5,5}, {5,7},
119  {6,0}, {6,2}, {6,4}, {6,6}, {7,1}, {7,3}, {7,5}, {7,7},
120 
121  {0,0}, {4,4}, {0,4}, {4,0}, {2,2}, {6,6}, {2,6}, {6,2}, // quality = 6
122  {0,2}, {4,6}, {0,6}, {4,2}, {2,0}, {6,4}, {2,4}, {6,0},
123  {1,1}, {5,5}, {1,5}, {5,1}, {3,3}, {7,7}, {3,7}, {7,3},
124  {1,3}, {5,7}, {1,7}, {5,3}, {3,1}, {7,5}, {3,5}, {7,1},
125  {0,1}, {4,5}, {0,5}, {4,1}, {2,3}, {6,7}, {2,7}, {6,3},
126  {0,3}, {4,7}, {0,7}, {4,3}, {2,1}, {6,5}, {2,5}, {6,1},
127  {1,0}, {5,4}, {1,4}, {5,0}, {3,2}, {7,6}, {3,6}, {7,2},
128  {1,2}, {5,6}, {1,6}, {5,2}, {3,0}, {7,4}, {3,4}, {7,0},
129 };
130 
131 static void hardthresh_c(int16_t dst[64], const int16_t src[64],
132  int qp, const uint8_t *permutation)
133 {
134  int i;
135  int bias = 0; // FIXME
136 
137  unsigned threshold1 = qp * ((1<<4) - bias) - 1;
138  unsigned threshold2 = threshold1 << 1;
139 
140  memset(dst, 0, 64 * sizeof(dst[0]));
141  dst[0] = (src[0] + 4) >> 3;
142 
143  for (i = 1; i < 64; i++) {
144  int level = src[i];
145  if (((unsigned)(level + threshold1)) > threshold2) {
146  const int j = permutation[i];
147  dst[j] = (level + 4) >> 3;
148  }
149  }
150 }
151 
152 static void softthresh_c(int16_t dst[64], const int16_t src[64],
153  int qp, const uint8_t *permutation)
154 {
155  int i;
156  int bias = 0; //FIXME
157 
158  unsigned threshold1 = qp * ((1<<4) - bias) - 1;
159  unsigned threshold2 = threshold1 << 1;
160 
161  memset(dst, 0, 64 * sizeof(dst[0]));
162  dst[0] = (src[0] + 4) >> 3;
163 
164  for (i = 1; i < 64; i++) {
165  int level = src[i];
166  if (((unsigned)(level + threshold1)) > threshold2) {
167  const int j = permutation[i];
168  if (level > 0) dst[j] = (level - threshold1 + 4) >> 3;
169  else dst[j] = (level + threshold1 + 4) >> 3;
170  }
171  }
172 }
173 
174 static void store_slice_c(uint8_t *dst, const int16_t *src,
175  int dst_linesize, int src_linesize,
176  int width, int height, int log2_scale,
177  const uint8_t dither[8][8])
178 {
179  int y, x;
180 
181 #define STORE(pos) do { \
182  temp = ((src[x + y*src_linesize + pos] << log2_scale) + d[pos]) >> 6; \
183  if (temp & 0x100) \
184  temp = ~(temp >> 31); \
185  dst[x + y*dst_linesize + pos] = temp; \
186 } while (0)
187 
188  for (y = 0; y < height; y++) {
189  const uint8_t *d = dither[y];
190  for (x = 0; x < width; x += 8) {
191  int temp;
192  STORE(0);
193  STORE(1);
194  STORE(2);
195  STORE(3);
196  STORE(4);
197  STORE(5);
198  STORE(6);
199  STORE(7);
200  }
201  }
202 }
203 
204 static void store_slice16_c(uint16_t *dst, const int16_t *src,
205  int dst_linesize, int src_linesize,
206  int width, int height, int log2_scale,
207  const uint8_t dither[8][8], int depth)
208 {
209  int y, x;
210  unsigned int mask = -1<<depth;
211 
212 #define STORE16(pos) do { \
213  temp = ((src[x + y*src_linesize + pos] << log2_scale) + (d[pos]>>1)) >> 5; \
214  if (temp & mask ) \
215  temp = ~(temp >> 31); \
216  dst[x + y*dst_linesize + pos] = temp; \
217 } while (0)
218 
219  for (y = 0; y < height; y++) {
220  const uint8_t *d = dither[y];
221  for (x = 0; x < width; x += 8) {
222  int temp;
223  STORE16(0);
224  STORE16(1);
225  STORE16(2);
226  STORE16(3);
227  STORE16(4);
228  STORE16(5);
229  STORE16(6);
230  STORE16(7);
231  }
232  }
233 }
234 
235 static inline void add_block(uint16_t *dst, int linesize, const int16_t block[64])
236 {
237  int y;
238 
239  for (y = 0; y < 8; y++) {
240  dst[0 + y*linesize] += block[0 + y*8];
241  dst[1 + y*linesize] += block[1 + y*8];
242  dst[2 + y*linesize] += block[2 + y*8];
243  dst[3 + y*linesize] += block[3 + y*8];
244  dst[4 + y*linesize] += block[4 + y*8];
245  dst[5 + y*linesize] += block[5 + y*8];
246  dst[6 + y*linesize] += block[6 + y*8];
247  dst[7 + y*linesize] += block[7 + y*8];
248  }
249 }
250 
251 static void filter(SPPContext *p, uint8_t *dst, uint8_t *src,
252  int dst_linesize, int src_linesize, int width, int height,
253  const uint8_t *qp_table, int qp_stride, int is_luma, int depth)
254 {
255  int x, y, i;
256  const int count = 1 << p->log2_count;
257  const int linesize = is_luma ? p->temp_linesize : FFALIGN(width+16, 16);
258  DECLARE_ALIGNED(16, uint64_t, block_align)[32];
259  int16_t *block = (int16_t *)block_align;
260  int16_t *block2 = (int16_t *)(block_align + 16);
261  uint16_t *psrc16 = (uint16_t*)p->src;
262  const int sample_bytes = (depth+7) / 8;
263 
264  for (y = 0; y < height; y++) {
265  int index = 8 + 8*linesize + y*linesize;
266  memcpy(p->src + index*sample_bytes, src + y*src_linesize, width*sample_bytes);
267  if (sample_bytes == 1) {
268  for (x = 0; x < 8; x++) {
269  p->src[index - x - 1] = p->src[index + x ];
270  p->src[index + width + x ] = p->src[index + width - x - 1];
271  }
272  } else {
273  for (x = 0; x < 8; x++) {
274  psrc16[index - x - 1] = psrc16[index + x ];
275  psrc16[index + width + x ] = psrc16[index + width - x - 1];
276  }
277  }
278  }
279  for (y = 0; y < 8; y++) {
280  memcpy(p->src + ( 7-y)*linesize * sample_bytes, p->src + ( y+8)*linesize * sample_bytes, linesize * sample_bytes);
281  memcpy(p->src + (height+8+y)*linesize * sample_bytes, p->src + (height-y+7)*linesize * sample_bytes, linesize * sample_bytes);
282  }
283 
284  for (y = 0; y < height + 8; y += 8) {
285  memset(p->temp + (8 + y) * linesize, 0, 8 * linesize * sizeof(*p->temp));
286  for (x = 0; x < width + 8; x += 8) {
287  int qp;
288 
289  if (p->qp) {
290  qp = p->qp;
291  } else{
292  const int qps = 3 + is_luma;
293  qp = qp_table[(FFMIN(x, width - 1) >> qps) + (FFMIN(y, height - 1) >> qps) * qp_stride];
294  qp = FFMAX(1, ff_norm_qscale(qp, p->qscale_type));
295  }
296  for (i = 0; i < count; i++) {
297  const int x1 = x + offset[i + count - 1][0];
298  const int y1 = y + offset[i + count - 1][1];
299  const int index = x1 + y1*linesize;
300  p->dct->get_pixels_unaligned(block, p->src + sample_bytes*index, sample_bytes*linesize);
301  p->dct->fdct(block);
302  p->requantize(block2, block, qp, p->dct->idct_permutation);
303  p->dct->idct(block2);
304  add_block(p->temp + index, linesize, block2);
305  }
306  }
307  if (y) {
308  if (sample_bytes == 1) {
309  p->store_slice(dst + (y - 8) * dst_linesize, p->temp + 8 + y*linesize,
310  dst_linesize, linesize, width,
311  FFMIN(8, height + 8 - y), MAX_LEVEL - p->log2_count,
312  ldither);
313  } else {
314  store_slice16_c((uint16_t*)(dst + (y - 8) * dst_linesize), p->temp + 8 + y*linesize,
315  dst_linesize/2, linesize, width,
316  FFMIN(8, height + 8 - y), MAX_LEVEL - p->log2_count,
317  ldither, depth);
318  }
319  }
320  }
321 }
322 
324 {
325  static const enum AVPixelFormat pix_fmts[] = {
340  };
341 
343  if (!fmts_list)
344  return AVERROR(ENOMEM);
345  return ff_set_common_formats(ctx, fmts_list);
346 }
347 
348 static int config_input(AVFilterLink *inlink)
349 {
350  SPPContext *s = inlink->dst->priv;
351  const int h = FFALIGN(inlink->h + 16, 16);
353  const int bps = desc->comp[0].depth;
354 
355  av_opt_set_int(s->dct, "bits_per_sample", bps, 0);
356  avcodec_dct_init(s->dct);
357 
358  if (ARCH_X86)
360 
361  s->hsub = desc->log2_chroma_w;
362  s->vsub = desc->log2_chroma_h;
363  s->temp_linesize = FFALIGN(inlink->w + 16, 16);
364  s->temp = av_malloc_array(s->temp_linesize, h * sizeof(*s->temp));
365  s->src = av_malloc_array(s->temp_linesize, h * sizeof(*s->src) * 2);
366 
367  if (!s->temp || !s->src)
368  return AVERROR(ENOMEM);
369  return 0;
370 }
371 
372 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
373 {
374  AVFilterContext *ctx = inlink->dst;
375  SPPContext *s = ctx->priv;
376  AVFilterLink *outlink = ctx->outputs[0];
377  AVFrame *out = in;
378  int qp_stride = 0;
379  int8_t *qp_table = NULL;
381  const int depth = desc->comp[0].depth;
382  int ret = 0;
383 
384  /* if we are not in a constant user quantizer mode and we don't want to use
385  * the quantizers from the B-frames (B-frames often have a higher QP), we
386  * need to save the qp table from the last non B-frame; this is what the
387  * following code block does */
388  if (!s->qp && (s->use_bframe_qp || in->pict_type != AV_PICTURE_TYPE_B)) {
389  ret = ff_qp_table_extract(in, &qp_table, &qp_stride, NULL, &s->qscale_type);
390  if (ret < 0) {
391  av_frame_free(&in);
392  return ret;
393  }
394 
395  if (!s->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
396  av_freep(&s->non_b_qp_table);
397  s->non_b_qp_table = qp_table;
398  s->non_b_qp_stride = qp_stride;
399  }
400  }
401 
402  if (s->log2_count && !ctx->is_disabled) {
403  if (!s->use_bframe_qp && s->non_b_qp_table) {
404  qp_table = s->non_b_qp_table;
405  qp_stride = s->non_b_qp_stride;
406  }
407 
408  if (qp_table || s->qp) {
409  const int cw = AV_CEIL_RSHIFT(inlink->w, s->hsub);
410  const int ch = AV_CEIL_RSHIFT(inlink->h, s->vsub);
411 
412  /* get a new frame if in-place is not possible or if the dimensions
413  * are not multiple of 8 */
414  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
415  const int aligned_w = FFALIGN(inlink->w, 8);
416  const int aligned_h = FFALIGN(inlink->h, 8);
417 
418  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
419  if (!out) {
420  av_frame_free(&in);
421  ret = AVERROR(ENOMEM);
422  goto finish;
423  }
425  out->width = in->width;
426  out->height = in->height;
427  }
428 
429  filter(s, out->data[0], in->data[0], out->linesize[0], in->linesize[0], inlink->w, inlink->h, qp_table, qp_stride, 1, depth);
430 
431  if (out->data[2]) {
432  filter(s, out->data[1], in->data[1], out->linesize[1], in->linesize[1], cw, ch, qp_table, qp_stride, 0, depth);
433  filter(s, out->data[2], in->data[2], out->linesize[2], in->linesize[2], cw, ch, qp_table, qp_stride, 0, depth);
434  }
435  emms_c();
436  }
437  }
438 
439  if (in != out) {
440  if (in->data[3])
441  av_image_copy_plane(out->data[3], out->linesize[3],
442  in ->data[3], in ->linesize[3],
443  inlink->w, inlink->h);
444  av_frame_free(&in);
445  }
446  ret = ff_filter_frame(outlink, out);
447 finish:
448  if (qp_table != s->non_b_qp_table)
449  av_freep(&qp_table);
450  return ret;
451 }
452 
453 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
454  char *res, int res_len, int flags)
455 {
456  SPPContext *s = ctx->priv;
457 
458  if (!strcmp(cmd, "level") || !strcmp(cmd, "quality")) {
459  if (!strcmp(args, "max"))
460  s->log2_count = MAX_LEVEL;
461  else
462  s->log2_count = av_clip(strtol(args, NULL, 10), 0, MAX_LEVEL);
463  return 0;
464  }
465  return AVERROR(ENOSYS);
466 }
467 
469 {
470  SPPContext *s = ctx->priv;
471  int ret;
472 
473  s->dct = avcodec_dct_alloc();
474  if (!s->dct)
475  return AVERROR(ENOMEM);
476 
477  if (opts) {
478  AVDictionaryEntry *e = NULL;
479 
480  while ((e = av_dict_get(*opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
481  if ((ret = av_opt_set(s->dct, e->key, e->value, 0)) < 0)
482  return ret;
483  }
485  }
486 
487  s->store_slice = store_slice_c;
488  switch (s->mode) {
489  case MODE_HARD: s->requantize = hardthresh_c; break;
490  case MODE_SOFT: s->requantize = softthresh_c; break;
491  }
492  return 0;
493 }
494 
496 {
497  SPPContext *s = ctx->priv;
498 
499  av_freep(&s->temp);
500  av_freep(&s->src);
501  av_freep(&s->dct);
502  av_freep(&s->non_b_qp_table);
503 }
504 
505 static const AVFilterPad spp_inputs[] = {
506  {
507  .name = "default",
508  .type = AVMEDIA_TYPE_VIDEO,
509  .config_props = config_input,
510  .filter_frame = filter_frame,
511  },
512  { NULL }
513 };
514 
515 static const AVFilterPad spp_outputs[] = {
516  {
517  .name = "default",
518  .type = AVMEDIA_TYPE_VIDEO,
519  },
520  { NULL }
521 };
522 
524  .name = "spp",
525  .description = NULL_IF_CONFIG_SMALL("Apply a simple post processing filter."),
526  .priv_size = sizeof(SPPContext),
527  .init_dict = init_dict,
528  .uninit = uninit,
530  .inputs = spp_inputs,
531  .outputs = spp_outputs,
533  .priv_class = &spp_class,
535 };
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
#define av_cold
Definition: attributes.h:88
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
uint8_t
simple assert() macros that are a bit more flexible than ISO C assert().
int avcodec_dct_init(AVDCT *dsp)
Definition: avdct.c:88
AVDCT * avcodec_dct_alloc(void)
Allocates a AVDCT context.
Definition: avdct.c:75
const AVClass * avcodec_dct_get_class(void)
Definition: avdct.c:70
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1096
#define flags(name, subs,...)
Definition: cbs_av1.c:572
#define s(width, name)
Definition: cbs_vp9.c:257
#define FFMIN(a, b)
Definition: common.h:105
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
#define av_clip
Definition: common.h:122
#define FFMAX(a, b)
Definition: common.h:103
#define ARCH_X86
Definition: config.h:39
#define NULL
Definition: coverity.c:32
mode
Use these values in ebur128_init (or'ed).
Definition: ebur128.h:83
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:587
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
@ AV_OPT_TYPE_INT
Definition: opt.h:225
@ AV_OPT_TYPE_BOOL
Definition: opt.h:242
#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:134
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values.
Definition: dict.c:203
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key,...
Definition: dict.h:70
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
#define AVERROR(e)
Definition: error.h:43
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:594
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:658
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:117
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
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:373
@ AV_PICTURE_TYPE_B
Bi-dir predicted.
Definition: avutil.h:276
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
Definition: opt.c:586
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:465
int index
Definition: gxfenc.c:89
misc image utilities
int i
Definition: input.c:407
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:351
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
#define emms_c()
Definition: internal.h:54
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:309
const char * desc
Definition: libsvtav1.c:79
@ AV_CLASS_CATEGORY_FILTER
Definition: log.h:37
static const uint16_t mask[17]
Definition: lzw.c:38
#define FFALIGN(x, a)
Definition: macros.h:48
unsigned bps
Definition: movenc.c:1612
AVOptions.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:398
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:399
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:414
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:397
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:415
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:396
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
int ff_qp_table_extract(AVFrame *frame, int8_t **table, int *table_w, int *table_h, int *qscale_type)
Extract a libpostproc-compatible QP table - an 8-bit QP value per 16x16 macroblock,...
Definition: qp_table.c:30
#define MAX_LEVEL
Definition: rl.h:36
Describe the class of an AVClass context structure.
Definition: log.h:67
void *(* child_next)(void *obj, void *prev)
Return next AVOptions-enabled child or NULL.
Definition: log.h:113
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
uint8_t idct_permutation[64]
IDCT input permutation.
Definition: avdct.h:48
void(* idct)(int16_t *block)
Definition: avdct.h:32
void(* fdct)(int16_t *block)
Definition: avdct.h:50
void(* get_pixels_unaligned)(int16_t *block, const uint8_t *pixels, ptrdiff_t line_size)
Definition: avdct.h:71
char * key
Definition: dict.h:82
char * value
Definition: dict.h:83
An instance of a filter.
Definition: avfilter.h:341
void * priv
private data for use by the filter
Definition: avfilter.h:356
A list of supported formats for one end of a filter link.
Definition: formats.h:65
A filter pad used for either input or output.
Definition: internal.h:54
const char * name
Pad name.
Definition: internal.h:60
Filter definition.
Definition: avfilter.h:145
const char * name
Filter name.
Definition: avfilter.h:149
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
AVOption.
Definition: opt.h:248
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
AVDCT * dct
Definition: vf_spp.h:40
int qscale_type
Definition: vf_spp.h:36
uint8_t * src
Definition: vf_spp.h:38
uint16_t * temp
Definition: vf_spp.h:39
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
int qp
Definition: vf_spp.h:34
void(* requantize)(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
Definition: vf_spp.h:51
int log2_count
Definition: vf_spp.h:33
int temp_linesize
Definition: vf_spp.h:37
uint8_t level
Definition: svq3.c:206
#define av_malloc_array(a, b)
#define av_freep(p)
#define src
Definition: vp8dsp.c:255
static int16_t block[64]
Definition: dct.c:116
FILE * out
Definition: movenc.c:54
AVFormatContext * ctx
Definition: movenc.c:48
static void finish(void)
Definition: movenc.c:342
AVDictionary * opts
Definition: movenc.c:50
#define height
#define width
static const uint8_t dither[8][8]
Definition: vf_fspp.c:59
else temp
Definition: vf_mcdeint.c:259
AVFilter ff_vf_spp
Definition: vf_spp.c:523
@ MODE_HARD
Definition: vf_spp.c:44
@ NB_MODES
Definition: vf_spp.c:46
@ MODE_SOFT
Definition: vf_spp.c:45
static const uint8_t offset[127][2]
Definition: vf_spp.c:107
static const AVClass * child_class_iterate(void **iter)
Definition: vf_spp.c:56
static const AVFilterPad spp_outputs[]
Definition: vf_spp.c:515
#define TFLAGS
Definition: vf_spp.c:71
static int query_formats(AVFilterContext *ctx)
Definition: vf_spp.c:323
static int config_input(AVFilterLink *inlink)
Definition: vf_spp.c:348
#define FLAGS
Definition: vf_spp.c:70
static void softthresh_c(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
Definition: vf_spp.c:152
#define STORE(pos)
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:251
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:174
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_spp.c:372
static const AVOption spp_options[]
Definition: vf_spp.c:72
static void * child_next(void *obj, void *prev)
Definition: vf_spp.c:63
static void add_block(uint16_t *dst, int linesize, const int16_t block[64])
Definition: vf_spp.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:453
static const AVClass spp_class
Definition: vf_spp.c:82
#define STORE16(pos)
static void hardthresh_c(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
Definition: vf_spp.c:131
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_spp.c:495
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:204
#define OFFSET(x)
Definition: vf_spp.c:69
static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts)
Definition: vf_spp.c:468
static const uint8_t ldither[8][8]
Definition: vf_spp.c:96
static const AVFilterPad spp_inputs[]
Definition: vf_spp.c:505
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:104
static double c[64]
av_cold void ff_spp_init_x86(SPPContext *s)
Definition: vf_spp.c:221