FFmpeg
vf_fspp.c
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1 /*
2  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
3  * Copyright (C) 2005 Nikolaj Poroshin <porosh3@psu.ru>
4  * Copyright (c) 2014 Arwa Arif <arwaarif1994@gmail.com>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License along
19  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21  */
22 
23 /**
24  * @file
25  * Fast Simple Post-processing filter
26  * This implementation is based on an algorithm described in
27  * "Aria Nosratinia Embedded Post-Processing for
28  * Enhancement of Compressed Images (1999)"
29  * (http://www.utdallas.edu/~aria/papers/vlsisp99.pdf)
30  * Further, with splitting (I)DCT into horizontal/vertical passes, one of
31  * them can be performed once per block, not per pixel. This allows for much
32  * higher speed.
33  *
34  * Originally written by Michael Niedermayer and Nikolaj for the MPlayer
35  * project, and ported by Arwa Arif for FFmpeg.
36  */
37 
38 #include "libavutil/avassert.h"
39 #include "libavutil/imgutils.h"
40 #include "libavutil/mem_internal.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/pixdesc.h"
43 #include "internal.h"
44 #include "qp_table.h"
45 #include "vf_fspp.h"
46 
47 #define OFFSET(x) offsetof(FSPPContext, x)
48 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
49 static const AVOption fspp_options[] = {
50  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 4}, 4, MAX_LEVEL, FLAGS },
51  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 64, FLAGS },
52  { "strength", "set filter strength", OFFSET(strength), AV_OPT_TYPE_INT, {.i64 = 0}, -15, 32, FLAGS },
53  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS },
54  { NULL }
55 };
56 
57 AVFILTER_DEFINE_CLASS(fspp);
58 
59 DECLARE_ALIGNED(32, static const uint8_t, dither)[8][8] = {
60  { 0, 48, 12, 60, 3, 51, 15, 63, },
61  { 32, 16, 44, 28, 35, 19, 47, 31, },
62  { 8, 56, 4, 52, 11, 59, 7, 55, },
63  { 40, 24, 36, 20, 43, 27, 39, 23, },
64  { 2, 50, 14, 62, 1, 49, 13, 61, },
65  { 34, 18, 46, 30, 33, 17, 45, 29, },
66  { 10, 58, 6, 54, 9, 57, 5, 53, },
67  { 42, 26, 38, 22, 41, 25, 37, 21, },
68 };
69 
70 static const short custom_threshold[64] = {
71 // values (296) can't be too high
72 // -it causes too big quant dependence
73 // or maybe overflow(check), which results in some flashing
74  71, 296, 295, 237, 71, 40, 38, 19,
75  245, 193, 185, 121, 102, 73, 53, 27,
76  158, 129, 141, 107, 97, 73, 50, 26,
77  102, 116, 109, 98, 82, 66, 45, 23,
78  71, 94, 95, 81, 70, 56, 38, 20,
79  56, 77, 74, 66, 56, 44, 30, 15,
80  38, 53, 50, 45, 38, 30, 21, 11,
81  20, 27, 26, 23, 20, 15, 11, 5
82 };
83 
84 //This func reads from 1 slice, 1 and clears 0 & 1
85 static void store_slice_c(uint8_t *dst, int16_t *src,
86  ptrdiff_t dst_stride, ptrdiff_t src_stride,
87  ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale)
88 {
89  int y, x;
90 #define STORE(pos) \
91  temp = (src[x + pos] + (d[pos] >> log2_scale)) >> (6 - log2_scale); \
92  src[x + pos] = src[x + pos - 8 * src_stride] = 0; \
93  if (temp & 0x100) temp = ~(temp >> 31); \
94  dst[x + pos] = temp;
95 
96  for (y = 0; y < height; y++) {
97  const uint8_t *d = dither[y];
98  for (x = 0; x < width; x += 8) {
99  int temp;
100  STORE(0);
101  STORE(1);
102  STORE(2);
103  STORE(3);
104  STORE(4);
105  STORE(5);
106  STORE(6);
107  STORE(7);
108  }
109  src += src_stride;
110  dst += dst_stride;
111  }
112 }
113 
114 //This func reads from 2 slices, 0 & 2 and clears 2-nd
115 static void store_slice2_c(uint8_t *dst, int16_t *src,
116  ptrdiff_t dst_stride, ptrdiff_t src_stride,
117  ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale)
118 {
119  int y, x;
120 #define STORE2(pos) \
121  temp = (src[x + pos] + src[x + pos + 16 * src_stride] + (d[pos] >> log2_scale)) >> (6 - log2_scale); \
122  src[x + pos + 16 * src_stride] = 0; \
123  if (temp & 0x100) temp = ~(temp >> 31); \
124  dst[x + pos] = temp;
125 
126  for (y = 0; y < height; y++) {
127  const uint8_t *d = dither[y];
128  for (x = 0; x < width; x += 8) {
129  int temp;
130  STORE2(0);
131  STORE2(1);
132  STORE2(2);
133  STORE2(3);
134  STORE2(4);
135  STORE2(5);
136  STORE2(6);
137  STORE2(7);
138  }
139  src += src_stride;
140  dst += dst_stride;
141  }
142 }
143 
144 static void mul_thrmat_c(int16_t *thr_adr_noq, int16_t *thr_adr, int q)
145 {
146  int a;
147  for (a = 0; a < 64; a++)
148  thr_adr[a] = q * thr_adr_noq[a];
149 }
150 
151 static void filter(FSPPContext *p, uint8_t *dst, uint8_t *src,
152  int dst_stride, int src_stride,
153  int width, int height,
154  uint8_t *qp_store, int qp_stride, int is_luma)
155 {
156  int x, x0, y, es, qy, t;
157 
158  const int stride = is_luma ? p->temp_stride : (width + 16);
159  const int step = 6 - p->log2_count;
160  const int qpsh = 4 - p->hsub * !is_luma;
161  const int qpsv = 4 - p->vsub * !is_luma;
162 
163  DECLARE_ALIGNED(32, int32_t, block_align)[4 * 8 * BLOCKSZ + 4 * 8 * BLOCKSZ];
164  int16_t *block = (int16_t *)block_align;
165  int16_t *block3 = (int16_t *)(block_align + 4 * 8 * BLOCKSZ);
166 
167  memset(block3, 0, 4 * 8 * BLOCKSZ);
168 
169  if (!src || !dst) return;
170 
171  for (y = 0; y < height; y++) {
172  int index = 8 + 8 * stride + y * stride;
173  memcpy(p->src + index, src + y * src_stride, width);
174  for (x = 0; x < 8; x++) {
175  p->src[index - x - 1] = p->src[index + x ];
176  p->src[index + width + x ] = p->src[index + width - x - 1];
177  }
178  }
179 
180  for (y = 0; y < 8; y++) {
181  memcpy(p->src + ( 7 - y ) * stride, p->src + ( y + 8 ) * stride, stride);
182  memcpy(p->src + (height + 8 + y) * stride, p->src + (height - y + 7) * stride, stride);
183  }
184  //FIXME (try edge emu)
185 
186  for (y = 8; y < 24; y++)
187  memset(p->temp + 8 + y * stride, 0, width * sizeof(int16_t));
188 
189  for (y = step; y < height + 8; y += step) { //step= 1,2
190  const int y1 = y - 8 + step; //l5-7 l4-6;
191  qy = y - 4;
192 
193  if (qy > height - 1) qy = height - 1;
194  if (qy < 0) qy = 0;
195 
196  qy = (qy >> qpsv) * qp_stride;
197  p->row_fdct(block, p->src + y * stride + 2 - (y&1), stride, 2);
198 
199  for (x0 = 0; x0 < width + 8 - 8 * (BLOCKSZ - 1); x0 += 8 * (BLOCKSZ - 1)) {
200  p->row_fdct(block + 8 * 8, p->src + y * stride + 8 + x0 + 2 - (y&1), stride, 2 * (BLOCKSZ - 1));
201 
202  if (p->qp)
203  p->column_fidct((int16_t *)(&p->threshold_mtx[0]), block + 0 * 8, block3 + 0 * 8, 8 * (BLOCKSZ - 1)); //yes, this is a HOTSPOT
204  else
205  for (x = 0; x < 8 * (BLOCKSZ - 1); x += 8) {
206  t = x + x0 - 2; //correct t=x+x0-2-(y&1), but its the same
207 
208  if (t < 0) t = 0; //t always < width-2
209 
210  t = qp_store[qy + (t >> qpsh)];
211  t = ff_norm_qscale(t, p->qscale_type);
212 
213  if (t != p->prev_q) p->prev_q = t, p->mul_thrmat((int16_t *)(&p->threshold_mtx_noq[0]), (int16_t *)(&p->threshold_mtx[0]), t);
214  p->column_fidct((int16_t *)(&p->threshold_mtx[0]), block + x * 8, block3 + x * 8, 8); //yes, this is a HOTSPOT
215  }
216  p->row_idct(block3 + 0 * 8, p->temp + (y & 15) * stride + x0 + 2 - (y & 1), stride, 2 * (BLOCKSZ - 1));
217  memmove(block, block + (BLOCKSZ - 1) * 64, 8 * 8 * sizeof(int16_t)); //cycling
218  memmove(block3, block3 + (BLOCKSZ - 1) * 64, 6 * 8 * sizeof(int16_t));
219  }
220 
221  es = width + 8 - x0; // 8, ...
222  if (es > 8)
223  p->row_fdct(block + 8 * 8, p->src + y * stride + 8 + x0 + 2 - (y & 1), stride, (es - 4) >> 2);
224 
225  p->column_fidct((int16_t *)(&p->threshold_mtx[0]), block, block3, es&(~1));
226  if (es > 3)
227  p->row_idct(block3 + 0 * 8, p->temp + (y & 15) * stride + x0 + 2 - (y & 1), stride, es >> 2);
228 
229  if (!(y1 & 7) && y1) {
230  if (y1 & 8)
231  p->store_slice(dst + (y1 - 8) * dst_stride, p->temp + 8 + 8 * stride,
232  dst_stride, stride, width, 8, 5 - p->log2_count);
233  else
234  p->store_slice2(dst + (y1 - 8) * dst_stride, p->temp + 8 + 0 * stride,
235  dst_stride, stride, width, 8, 5 - p->log2_count);
236  }
237  }
238 
239  if (y & 7) { // height % 8 != 0
240  if (y & 8)
241  p->store_slice(dst + ((y - 8) & ~7) * dst_stride, p->temp + 8 + 8 * stride,
242  dst_stride, stride, width, y&7, 5 - p->log2_count);
243  else
244  p->store_slice2(dst + ((y - 8) & ~7) * dst_stride, p->temp + 8 + 0 * stride,
245  dst_stride, stride, width, y&7, 5 - p->log2_count);
246  }
247 }
248 
249 static void column_fidct_c(int16_t *thr_adr, int16_t *data, int16_t *output, int cnt)
250 {
251  int_simd16_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
252  int_simd16_t tmp10, tmp11, tmp12, tmp13;
253  int_simd16_t z1,z2,z3,z4,z5, z10, z11, z12, z13;
254  int_simd16_t d0, d1, d2, d3, d4, d5, d6, d7;
255 
256  int16_t *dataptr;
257  int16_t *wsptr;
258  int16_t *threshold;
259  int ctr;
260 
261  dataptr = data;
262  wsptr = output;
263 
264  for (; cnt > 0; cnt -= 2) { //start positions
265  threshold = (int16_t *)thr_adr;//threshold_mtx
266  for (ctr = DCTSIZE; ctr > 0; ctr--) {
267  // Process columns from input, add to output.
268  tmp0 = dataptr[DCTSIZE * 0] + dataptr[DCTSIZE * 7];
269  tmp7 = dataptr[DCTSIZE * 0] - dataptr[DCTSIZE * 7];
270 
271  tmp1 = dataptr[DCTSIZE * 1] + dataptr[DCTSIZE * 6];
272  tmp6 = dataptr[DCTSIZE * 1] - dataptr[DCTSIZE * 6];
273 
274  tmp2 = dataptr[DCTSIZE * 2] + dataptr[DCTSIZE * 5];
275  tmp5 = dataptr[DCTSIZE * 2] - dataptr[DCTSIZE * 5];
276 
277  tmp3 = dataptr[DCTSIZE * 3] + dataptr[DCTSIZE * 4];
278  tmp4 = dataptr[DCTSIZE * 3] - dataptr[DCTSIZE * 4];
279 
280  // Even part of FDCT
281 
282  tmp10 = tmp0 + tmp3;
283  tmp13 = tmp0 - tmp3;
284  tmp11 = tmp1 + tmp2;
285  tmp12 = tmp1 - tmp2;
286 
287  d0 = tmp10 + tmp11;
288  d4 = tmp10 - tmp11;
289 
290  z1 = MULTIPLY16H((tmp12 + tmp13) << 2, FIX_0_707106781);
291  d2 = tmp13 + z1;
292  d6 = tmp13 - z1;
293 
294  // Even part of IDCT
295 
296  THRESHOLD(tmp0, d0, threshold[0 * 8]);
297  THRESHOLD(tmp1, d2, threshold[2 * 8]);
298  THRESHOLD(tmp2, d4, threshold[4 * 8]);
299  THRESHOLD(tmp3, d6, threshold[6 * 8]);
300  tmp0 += 2;
301  tmp10 = (tmp0 + tmp2) >> 2;
302  tmp11 = (tmp0 - tmp2) >> 2;
303 
304  tmp13 = (tmp1 + tmp3) >>2; //+2 ! (psnr decides)
305  tmp12 = MULTIPLY16H((tmp1 - tmp3), FIX_1_414213562_A) - tmp13; //<<2
306 
307  tmp0 = tmp10 + tmp13; //->temps
308  tmp3 = tmp10 - tmp13; //->temps
309  tmp1 = tmp11 + tmp12; //->temps
310  tmp2 = tmp11 - tmp12; //->temps
311 
312  // Odd part of FDCT
313 
314  tmp10 = tmp4 + tmp5;
315  tmp11 = tmp5 + tmp6;
316  tmp12 = tmp6 + tmp7;
317 
318  z5 = MULTIPLY16H((tmp10 - tmp12) << 2, FIX_0_382683433);
319  z2 = MULTIPLY16H(tmp10 << 2, FIX_0_541196100) + z5;
320  z4 = MULTIPLY16H(tmp12 << 2, FIX_1_306562965) + z5;
321  z3 = MULTIPLY16H(tmp11 << 2, FIX_0_707106781);
322 
323  z11 = tmp7 + z3;
324  z13 = tmp7 - z3;
325 
326  d5 = z13 + z2;
327  d3 = z13 - z2;
328  d1 = z11 + z4;
329  d7 = z11 - z4;
330 
331  // Odd part of IDCT
332 
333  THRESHOLD(tmp4, d1, threshold[1 * 8]);
334  THRESHOLD(tmp5, d3, threshold[3 * 8]);
335  THRESHOLD(tmp6, d5, threshold[5 * 8]);
336  THRESHOLD(tmp7, d7, threshold[7 * 8]);
337 
338  //Simd version uses here a shortcut for the tmp5,tmp6,tmp7 == 0
339  z13 = tmp6 + tmp5;
340  z10 = (tmp6 - tmp5) << 1;
341  z11 = tmp4 + tmp7;
342  z12 = (tmp4 - tmp7) << 1;
343 
344  tmp7 = (z11 + z13) >> 2; //+2 !
345  tmp11 = MULTIPLY16H((z11 - z13) << 1, FIX_1_414213562);
346  z5 = MULTIPLY16H(z10 + z12, FIX_1_847759065);
347  tmp10 = MULTIPLY16H(z12, FIX_1_082392200) - z5;
348  tmp12 = MULTIPLY16H(z10, FIX_2_613125930) + z5; // - !!
349 
350  tmp6 = tmp12 - tmp7;
351  tmp5 = tmp11 - tmp6;
352  tmp4 = tmp10 + tmp5;
353 
354  wsptr[DCTSIZE * 0] += (tmp0 + tmp7);
355  wsptr[DCTSIZE * 1] += (tmp1 + tmp6);
356  wsptr[DCTSIZE * 2] += (tmp2 + tmp5);
357  wsptr[DCTSIZE * 3] += (tmp3 - tmp4);
358  wsptr[DCTSIZE * 4] += (tmp3 + tmp4);
359  wsptr[DCTSIZE * 5] += (tmp2 - tmp5);
360  wsptr[DCTSIZE * 6] = (tmp1 - tmp6);
361  wsptr[DCTSIZE * 7] = (tmp0 - tmp7);
362  //
363  dataptr++; //next column
364  wsptr++;
365  threshold++;
366  }
367  dataptr += 8; //skip each second start pos
368  wsptr += 8;
369  }
370 }
371 
372 static void row_idct_c(int16_t *workspace, int16_t *output_adr, ptrdiff_t output_stride, int cnt)
373 {
374  int_simd16_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
375  int_simd16_t tmp10, tmp11, tmp12, tmp13;
376  int_simd16_t z5, z10, z11, z12, z13;
377  int16_t *outptr;
378  int16_t *wsptr;
379 
380  cnt *= 4;
381  wsptr = workspace;
382  outptr = output_adr;
383  for (; cnt > 0; cnt--) {
384  // Even part
385  //Simd version reads 4x4 block and transposes it
386  tmp10 = wsptr[2] + wsptr[3];
387  tmp11 = wsptr[2] - wsptr[3];
388 
389  tmp13 = wsptr[0] + wsptr[1];
390  tmp12 = (MULTIPLY16H(wsptr[0] - wsptr[1], FIX_1_414213562_A) << 2) - tmp13;//this shift order to avoid overflow
391 
392  tmp0 = tmp10 + tmp13; //->temps
393  tmp3 = tmp10 - tmp13; //->temps
394  tmp1 = tmp11 + tmp12;
395  tmp2 = tmp11 - tmp12;
396 
397  // Odd part
398  //Also transpose, with previous:
399  // ---- ---- ||||
400  // ---- ---- idct ||||
401  // ---- ---- ---> ||||
402  // ---- ---- ||||
403  z13 = wsptr[4] + wsptr[5];
404  z10 = wsptr[4] - wsptr[5];
405  z11 = wsptr[6] + wsptr[7];
406  z12 = wsptr[6] - wsptr[7];
407 
408  tmp7 = z11 + z13;
409  tmp11 = MULTIPLY16H(z11 - z13, FIX_1_414213562);
410 
411  z5 = MULTIPLY16H(z10 + z12, FIX_1_847759065);
412  tmp10 = MULTIPLY16H(z12, FIX_1_082392200) - z5;
413  tmp12 = MULTIPLY16H(z10, FIX_2_613125930) + z5; // - FIX_
414 
415  tmp6 = (tmp12 << 3) - tmp7;
416  tmp5 = (tmp11 << 3) - tmp6;
417  tmp4 = (tmp10 << 3) + tmp5;
418 
419  // Final output stage: descale and write column
420  outptr[0 * output_stride] += DESCALE(tmp0 + tmp7, 3);
421  outptr[1 * output_stride] += DESCALE(tmp1 + tmp6, 3);
422  outptr[2 * output_stride] += DESCALE(tmp2 + tmp5, 3);
423  outptr[3 * output_stride] += DESCALE(tmp3 - tmp4, 3);
424  outptr[4 * output_stride] += DESCALE(tmp3 + tmp4, 3);
425  outptr[5 * output_stride] += DESCALE(tmp2 - tmp5, 3);
426  outptr[6 * output_stride] += DESCALE(tmp1 - tmp6, 3); //no += ?
427  outptr[7 * output_stride] += DESCALE(tmp0 - tmp7, 3); //no += ?
428  outptr++;
429 
430  wsptr += DCTSIZE; // advance pointer to next row
431  }
432 }
433 
434 static void row_fdct_c(int16_t *data, const uint8_t *pixels, ptrdiff_t line_size, int cnt)
435 {
436  int_simd16_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
437  int_simd16_t tmp10, tmp11, tmp12, tmp13;
438  int_simd16_t z1, z2, z3, z4, z5, z11, z13;
439  int16_t *dataptr;
440 
441  cnt *= 4;
442  // Pass 1: process rows.
443 
444  dataptr = data;
445  for (; cnt > 0; cnt--) {
446  tmp0 = pixels[line_size * 0] + pixels[line_size * 7];
447  tmp7 = pixels[line_size * 0] - pixels[line_size * 7];
448  tmp1 = pixels[line_size * 1] + pixels[line_size * 6];
449  tmp6 = pixels[line_size * 1] - pixels[line_size * 6];
450  tmp2 = pixels[line_size * 2] + pixels[line_size * 5];
451  tmp5 = pixels[line_size * 2] - pixels[line_size * 5];
452  tmp3 = pixels[line_size * 3] + pixels[line_size * 4];
453  tmp4 = pixels[line_size * 3] - pixels[line_size * 4];
454 
455  // Even part
456 
457  tmp10 = tmp0 + tmp3;
458  tmp13 = tmp0 - tmp3;
459  tmp11 = tmp1 + tmp2;
460  tmp12 = tmp1 - tmp2;
461  //Even columns are written first, this leads to different order of columns
462  //in column_fidct(), but they are processed independently, so all ok.
463  //Later in the row_idct() columns readed at the same order.
464  dataptr[2] = tmp10 + tmp11;
465  dataptr[3] = tmp10 - tmp11;
466 
467  z1 = MULTIPLY16H((tmp12 + tmp13) << 2, FIX_0_707106781);
468  dataptr[0] = tmp13 + z1;
469  dataptr[1] = tmp13 - z1;
470 
471  // Odd part
472 
473  tmp10 = (tmp4 + tmp5) << 2;
474  tmp11 = (tmp5 + tmp6) << 2;
475  tmp12 = (tmp6 + tmp7) << 2;
476 
477  z5 = MULTIPLY16H(tmp10 - tmp12, FIX_0_382683433);
478  z2 = MULTIPLY16H(tmp10, FIX_0_541196100) + z5;
479  z4 = MULTIPLY16H(tmp12, FIX_1_306562965) + z5;
480  z3 = MULTIPLY16H(tmp11, FIX_0_707106781);
481 
482  z11 = tmp7 + z3;
483  z13 = tmp7 - z3;
484 
485  dataptr[4] = z13 + z2;
486  dataptr[5] = z13 - z2;
487  dataptr[6] = z11 + z4;
488  dataptr[7] = z11 - z4;
489 
490  pixels++; // advance pointer to next column
491  dataptr += DCTSIZE;
492  }
493 }
494 
495 static int query_formats(AVFilterContext *ctx)
496 {
497  static const enum AVPixelFormat pix_fmts[] = {
498  AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P,
499  AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P,
500  AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
501  AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P,
502  AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ440P,
503  AV_PIX_FMT_GBRP, AV_PIX_FMT_GRAY8,
504  AV_PIX_FMT_NONE
505  };
506 
507  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
508  if (!fmts_list)
509  return AVERROR(ENOMEM);
510  return ff_set_common_formats(ctx, fmts_list);
511 }
512 
513 static int config_input(AVFilterLink *inlink)
514 {
515  AVFilterContext *ctx = inlink->dst;
516  FSPPContext *fspp = ctx->priv;
517  const int h = FFALIGN(inlink->h + 16, 16);
518  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
519 
520  fspp->hsub = desc->log2_chroma_w;
521  fspp->vsub = desc->log2_chroma_h;
522 
523  fspp->temp_stride = FFALIGN(inlink->w + 16, 16);
524  fspp->temp = av_malloc_array(fspp->temp_stride, h * sizeof(*fspp->temp));
525  fspp->src = av_malloc_array(fspp->temp_stride, h * sizeof(*fspp->src));
526 
527  if (!fspp->temp || !fspp->src)
528  return AVERROR(ENOMEM);
529 
530  fspp->store_slice = store_slice_c;
531  fspp->store_slice2 = store_slice2_c;
532  fspp->mul_thrmat = mul_thrmat_c;
533  fspp->column_fidct = column_fidct_c;
534  fspp->row_idct = row_idct_c;
535  fspp->row_fdct = row_fdct_c;
536 
537  if (ARCH_X86)
538  ff_fspp_init_x86(fspp);
539 
540  return 0;
541 }
542 
543 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
544 {
545  AVFilterContext *ctx = inlink->dst;
546  FSPPContext *fspp = ctx->priv;
547  AVFilterLink *outlink = ctx->outputs[0];
548  AVFrame *out = in;
549 
550  int qp_stride = 0;
551  int8_t *qp_table = NULL;
552  int i, bias;
553  int ret = 0;
554  int custom_threshold_m[64];
555 
556  bias = (1 << 4) + fspp->strength;
557 
558  for (i = 0; i < 64; i++) //FIXME: tune custom_threshold[] and remove this !
559  custom_threshold_m[i] = (int)(custom_threshold[i] * (bias / 71.0) + 0.5);
560 
561  for (i = 0; i < 8; i++) {
562  fspp->threshold_mtx_noq[2 * i] = (uint64_t)custom_threshold_m[i * 8 + 2]
563  |(((uint64_t)custom_threshold_m[i * 8 + 6]) << 16)
564  |(((uint64_t)custom_threshold_m[i * 8 + 0]) << 32)
565  |(((uint64_t)custom_threshold_m[i * 8 + 4]) << 48);
566 
567  fspp->threshold_mtx_noq[2 * i + 1] = (uint64_t)custom_threshold_m[i * 8 + 5]
568  |(((uint64_t)custom_threshold_m[i * 8 + 3]) << 16)
569  |(((uint64_t)custom_threshold_m[i * 8 + 1]) << 32)
570  |(((uint64_t)custom_threshold_m[i * 8 + 7]) << 48);
571  }
572 
573  if (fspp->qp)
574  fspp->prev_q = fspp->qp, fspp->mul_thrmat((int16_t *)(&fspp->threshold_mtx_noq[0]), (int16_t *)(&fspp->threshold_mtx[0]), fspp->qp);
575 
576  /* if we are not in a constant user quantizer mode and we don't want to use
577  * the quantizers from the B-frames (B-frames often have a higher QP), we
578  * need to save the qp table from the last non B-frame; this is what the
579  * following code block does */
580  if (!fspp->qp && (fspp->use_bframe_qp || in->pict_type != AV_PICTURE_TYPE_B)) {
581  ret = ff_qp_table_extract(in, &qp_table, &qp_stride, NULL, &fspp->qscale_type);
582  if (ret < 0) {
583  av_frame_free(&in);
584  return ret;
585  }
586 
587  if (!fspp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
588  av_freep(&fspp->non_b_qp_table);
589  fspp->non_b_qp_table = qp_table;
590  fspp->non_b_qp_stride = qp_stride;
591  }
592  }
593 
594  if (fspp->log2_count && !ctx->is_disabled) {
595  if (!fspp->use_bframe_qp && fspp->non_b_qp_table) {
596  qp_table = fspp->non_b_qp_table;
597  qp_stride = fspp->non_b_qp_stride;
598  }
599 
600  if (qp_table || fspp->qp) {
601  const int cw = AV_CEIL_RSHIFT(inlink->w, fspp->hsub);
602  const int ch = AV_CEIL_RSHIFT(inlink->h, fspp->vsub);
603 
604  /* get a new frame if in-place is not possible or if the dimensions
605  * are not multiple of 8 */
606  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
607  const int aligned_w = FFALIGN(inlink->w, 8);
608  const int aligned_h = FFALIGN(inlink->h, 8);
609 
610  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
611  if (!out) {
612  av_frame_free(&in);
613  ret = AVERROR(ENOMEM);
614  goto finish;
615  }
616  av_frame_copy_props(out, in);
617  out->width = in->width;
618  out->height = in->height;
619  }
620 
621  filter(fspp, out->data[0], in->data[0], out->linesize[0], in->linesize[0],
622  inlink->w, inlink->h, qp_table, qp_stride, 1);
623  filter(fspp, out->data[1], in->data[1], out->linesize[1], in->linesize[1],
624  cw, ch, qp_table, qp_stride, 0);
625  filter(fspp, out->data[2], in->data[2], out->linesize[2], in->linesize[2],
626  cw, ch, qp_table, qp_stride, 0);
627  emms_c();
628  }
629  }
630 
631  if (in != out) {
632  if (in->data[3])
633  av_image_copy_plane(out->data[3], out->linesize[3],
634  in ->data[3], in ->linesize[3],
635  inlink->w, inlink->h);
636  av_frame_free(&in);
637  }
638  ret = ff_filter_frame(outlink, out);
639 finish:
640  if (qp_table != fspp->non_b_qp_table)
641  av_freep(&qp_table);
642  return ret;
643 }
644 
645 static av_cold void uninit(AVFilterContext *ctx)
646 {
647  FSPPContext *fspp = ctx->priv;
648  av_freep(&fspp->temp);
649  av_freep(&fspp->src);
650  av_freep(&fspp->non_b_qp_table);
651 }
652 
653 static const AVFilterPad fspp_inputs[] = {
654  {
655  .name = "default",
656  .type = AVMEDIA_TYPE_VIDEO,
657  .config_props = config_input,
658  .filter_frame = filter_frame,
659  },
660  { NULL }
661 };
662 
663 static const AVFilterPad fspp_outputs[] = {
664  {
665  .name = "default",
666  .type = AVMEDIA_TYPE_VIDEO,
667  },
668  { NULL }
669 };
670 
671 AVFilter ff_vf_fspp = {
672  .name = "fspp",
673  .description = NULL_IF_CONFIG_SMALL("Apply Fast Simple Post-processing filter."),
674  .priv_size = sizeof(FSPPContext),
675  .uninit = uninit,
676  .query_formats = query_formats,
677  .inputs = fspp_inputs,
678  .outputs = fspp_outputs,
679  .priv_class = &fspp_class,
680  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
681 };
ff_get_video_buffer
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
MULTIPLY16H
#define MULTIPLY16H(x, k)
Definition: vf_fspp.h:36
stride
int stride
Definition: mace.c:144
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
FIX_0_707106781
#define FIX_0_707106781
Definition: jfdctfst.c:118
FIX_0_541196100
#define FIX_0_541196100
Definition: jfdctfst.c:117
FSPPContext::column_fidct
void(* column_fidct)(int16_t *thr_adr, int16_t *data, int16_t *output, int cnt)
Definition: vf_fspp.h:82
store_slice2_c
static void store_slice2_c(uint8_t *dst, int16_t *src, ptrdiff_t dst_stride, ptrdiff_t src_stride, ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale)
Definition: vf_fspp.c:115
vf_fspp.h
qp_table.h
AVERROR
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
opt.h
FSPPContext::hsub
int hsub
Definition: vf_fspp.h:60
STORE
#define STORE(pos)
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
mem_internal.h
out
FILE * out
Definition: movenc.c:54
FSPPContext::threshold_mtx_noq
uint64_t threshold_mtx_noq[8 *2]
Definition: vf_fspp.h:55
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1096
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
output
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce output
Definition: filter_design.txt:225
inlink
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
Definition: filter_design.txt:212
FLAGS
#define FLAGS
Definition: vf_fspp.c:48
FSPPContext::store_slice
void(* store_slice)(uint8_t *dst, int16_t *src, ptrdiff_t dst_stride, ptrdiff_t src_stride, ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale)
Definition: vf_fspp.h:72
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
FSPPContext::vsub
int vsub
Definition: vf_fspp.h:61
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
pixdesc.h
step
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
Definition: rate_distortion.txt:58
AVOption
AVOption.
Definition: opt.h:248
data
const char data[16]
Definition: mxf.c:142
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
FSPPContext::src
uint8_t * src
Definition: vf_fspp.h:66
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
FIX_1_082392200
#define FIX_1_082392200
Definition: 4xm.c:157
FSPPContext::row_idct
void(* row_idct)(int16_t *workspace, int16_t *output_adr, ptrdiff_t output_stride, int cnt)
Definition: vf_fspp.h:85
av_image_copy_plane
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
FIX_2_613125930
#define FIX_2_613125930
Definition: 4xm.c:160
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:65
row_fdct_c
static void row_fdct_c(int16_t *data, const uint8_t *pixels, ptrdiff_t line_size, int cnt)
Definition: vf_fspp.c:434
finish
static void finish(void)
Definition: movenc.c:342
BLOCKSZ
#define BLOCKSZ
Definition: vf_fspp.h:28
FIX_0_382683433
#define FIX_0_382683433
Definition: jfdctfst.c:116
fspp_inputs
static const AVFilterPad fspp_inputs[]
Definition: vf_fspp.c:653
custom_threshold
static const short custom_threshold[64]
Definition: vf_fspp.c:70
mul_thrmat_c
static void mul_thrmat_c(int16_t *thr_adr_noq, int16_t *thr_adr, int q)
Definition: vf_fspp.c:144
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
avassert.h
av_cold
#define av_cold
Definition: attributes.h:90
ff_set_common_formats
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
column_fidct_c
static void column_fidct_c(int16_t *thr_adr, int16_t *data, int16_t *output, int cnt)
Definition: vf_fspp.c:249
AV_PIX_FMT_YUVJ422P
@ 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
width
#define width
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
FSPPContext::row_fdct
void(* row_fdct)(int16_t *data, const uint8_t *pixels, ptrdiff_t line_size, int cnt)
Definition: vf_fspp.h:88
DCTSIZE
#define DCTSIZE
Definition: jfdctfst.c:74
FSPPContext::non_b_qp_table
int8_t * non_b_qp_table
Definition: vf_fspp.h:68
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:309
FSPPContext::non_b_qp_stride
int non_b_qp_stride
Definition: vf_fspp.h:69
ctx
AVFormatContext * ctx
Definition: movenc.c:48
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_fspp.c:513
store_slice_c
static void store_slice_c(uint8_t *dst, int16_t *src, ptrdiff_t dst_stride, ptrdiff_t src_stride, ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale)
Definition: vf_fspp.c:85
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
FSPPContext::log2_count
int log2_count
Definition: vf_fspp.h:58
AV_PIX_FMT_YUVJ444P
@ 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
int32_t
int32_t
Definition: audio_convert.c:194
NULL
#define NULL
Definition: coverity.c:32
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:658
FSPPContext::qp
int qp
Definition: vf_fspp.h:63
AV_PIX_FMT_YUVJ420P
@ 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
src
#define src
Definition: vp8dsp.c:255
FIX_1_306562965
#define FIX_1_306562965
Definition: jfdctfst.c:119
STORE2
#define STORE2(pos)
ff_vf_fspp
AVFilter ff_vf_fspp
Definition: vf_fspp.c:671
inputs
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
Definition: filter_design.txt:243
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_fspp.c:495
index
int index
Definition: gxfenc.c:89
for
for(j=16;j >0;--j)
Definition: h264pred_template.c:469
MAX_LEVEL
#define MAX_LEVEL
Definition: rl.h:36
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
FSPPContext::strength
int strength
Definition: vf_fspp.h:59
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_fspp.c:645
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:594
ff_norm_qscale
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
OFFSET
#define OFFSET(x)
Definition: vf_fspp.c:47
height
#define height
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
fspp_options
static const AVOption fspp_options[]
Definition: vf_fspp.c:49
row_idct_c
static void row_idct_c(int16_t *workspace, int16_t *output_adr, ptrdiff_t output_stride, int cnt)
Definition: vf_fspp.c:372
FSPPContext::threshold_mtx
uint64_t threshold_mtx[8 *2]
Definition: vf_fspp.h:56
FIX_1_847759065
#define FIX_1_847759065
Definition: 4xm.c:159
internal.h
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:117
FSPPContext::temp_stride
int temp_stride
Definition: vf_fspp.h:62
in
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
Definition: audio_convert.c:326
i
int i
Definition: input.c:407
FSPPContext::use_bframe_qp
int use_bframe_qp
Definition: vf_fspp.h:70
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
AV_PIX_FMT_YUVJ440P
@ 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
uint8_t
uint8_t
Definition: audio_convert.c:194
FIX_1_414213562
#define FIX_1_414213562
Definition: 4xm.c:158
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
DESCALE
#define DESCALE(x, n)
Definition: jfdctfst.c:135
AVFilter
Filter definition.
Definition: avfilter.h:145
ret
ret
Definition: filter_design.txt:187
fspp_outputs
static const AVFilterPad fspp_outputs[]
Definition: vf_fspp.c:663
FSPPContext
Definition: vf_fspp.h:53
ff_fspp_init_x86
void ff_fspp_init_x86(FSPPContext *fspp)
Definition: vf_fspp_init.c:37
FIX_1_414213562_A
static const int16_t FIX_1_414213562_A
Definition: vf_fspp.h:47
AV_PICTURE_TYPE_B
@ AV_PICTURE_TYPE_B
Bi-dir predicted.
Definition: avutil.h:276
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
filter
static void filter(FSPPContext *p, uint8_t *dst, uint8_t *src, int dst_stride, int src_stride, int width, int height, uint8_t *qp_store, int qp_stride, int is_luma)
Definition: vf_fspp.c:151
FSPPContext::mul_thrmat
void(* mul_thrmat)(int16_t *thr_adr_noq, int16_t *thr_adr, int q)
Definition: vf_fspp.h:80
temp
else temp
Definition: vf_mcdeint.c:259
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:341
FSPPContext::store_slice2
void(* store_slice2)(uint8_t *dst, int16_t *src, ptrdiff_t dst_stride, ptrdiff_t src_stride, ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale)
Definition: vf_fspp.h:76
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
ff_qp_table_extract
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
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
FSPPContext::temp
int16_t * temp
Definition: vf_fspp.h:67
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_fspp.c:543
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:48
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:242
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
FSPPContext::prev_q
int prev_q
Definition: vf_fspp.h:65
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#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
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
FSPPContext::qscale_type
int qscale_type
Definition: vf_fspp.h:64
h
h
Definition: vp9dsp_template.c:2038
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(fspp)
int_simd16_t
int32_t int_simd16_t
Definition: vf_fspp.h:42
THRESHOLD
#define THRESHOLD(r, x, t)
Definition: vf_fspp.h:37
dither
static const uint8_t dither[8][8]
Definition: vf_fspp.c:59
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