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vf_fieldmatch.c
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1 /*
2  * Copyright (c) 2012 Fredrik Mellbin
3  * Copyright (c) 2013 Clément Bœsch
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (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 GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * Fieldmatching filter, ported from VFM filter (VapourSynth) by Clément.
25  * Fredrik Mellbin is the author of the VIVTC/VFM filter, which is itself a
26  * light clone of the TIVTC/TFM (AviSynth) filter written by Kevin Stone
27  * (tritical), the original author.
28  *
29  * @see http://bengal.missouri.edu/~kes25c/
30  * @see http://www.vapoursynth.com/about/
31  */
32 
33 #include <inttypes.h>
34 
35 #include "libavutil/avassert.h"
36 #include "libavutil/imgutils.h"
37 #include "libavutil/opt.h"
38 #include "libavutil/timestamp.h"
39 #include "avfilter.h"
40 #include "filters.h"
41 #include "internal.h"
42 
43 #define INPUT_MAIN 0
44 #define INPUT_CLEANSRC 1
45 
50 };
51 
60 };
61 
67 };
68 
69 enum comb_dbg {
74 };
75 
76 typedef struct FieldMatchContext {
77  const AVClass *class;
78 
79  AVFrame *prv, *src, *nxt; ///< main sliding window of 3 frames
80  AVFrame *prv2, *src2, *nxt2; ///< sliding window of the optional second stream
81  int got_frame[2]; ///< frame request flag for each input stream
82  int hsub, vsub; ///< chroma subsampling values
83  int bpc; ///< bytes per component
84  uint32_t eof; ///< bitmask for end of stream
85  int64_t lastscdiff;
86  int64_t lastn;
87 
88  /* options */
89  int order;
90  int ppsrc;
91  int mode; ///< matching_mode
92  int field;
93  int mchroma;
94  int y0, y1;
95  int64_t scthresh;
96  double scthresh_flt;
97  int combmatch; ///< comb_matching_mode
98  int combdbg;
99  int cthresh;
100  int chroma;
102  int combpel;
103 
104  /* misc buffers */
106  int map_linesize[4];
109  int *c_array;
113 
114 #define OFFSET(x) offsetof(FieldMatchContext, x)
115 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
116 
117 static const AVOption fieldmatch_options[] = {
118  { "order", "specify the assumed field order", OFFSET(order), AV_OPT_TYPE_INT, {.i64=FM_PARITY_AUTO}, -1, 1, FLAGS, "order" },
119  { "auto", "auto detect parity", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_AUTO}, INT_MIN, INT_MAX, FLAGS, "order" },
120  { "bff", "assume bottom field first", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_BOTTOM}, INT_MIN, INT_MAX, FLAGS, "order" },
121  { "tff", "assume top field first", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_TOP}, INT_MIN, INT_MAX, FLAGS, "order" },
122  { "mode", "set the matching mode or strategy to use", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=MODE_PC_N}, MODE_PC, NB_MODE-1, FLAGS, "mode" },
123  { "pc", "2-way match (p/c)", 0, AV_OPT_TYPE_CONST, {.i64=MODE_PC}, INT_MIN, INT_MAX, FLAGS, "mode" },
124  { "pc_n", "2-way match + 3rd match on combed (p/c + u)", 0, AV_OPT_TYPE_CONST, {.i64=MODE_PC_N}, INT_MIN, INT_MAX, FLAGS, "mode" },
125  { "pc_u", "2-way match + 3rd match (same order) on combed (p/c + u)", 0, AV_OPT_TYPE_CONST, {.i64=MODE_PC_U}, INT_MIN, INT_MAX, FLAGS, "mode" },
126  { "pc_n_ub", "2-way match + 3rd match on combed + 4th/5th matches if still combed (p/c + u + u/b)", 0, AV_OPT_TYPE_CONST, {.i64=MODE_PC_N_UB}, INT_MIN, INT_MAX, FLAGS, "mode" },
127  { "pcn", "3-way match (p/c/n)", 0, AV_OPT_TYPE_CONST, {.i64=MODE_PCN}, INT_MIN, INT_MAX, FLAGS, "mode" },
128  { "pcn_ub", "3-way match + 4th/5th matches on combed (p/c/n + u/b)", 0, AV_OPT_TYPE_CONST, {.i64=MODE_PCN_UB}, INT_MIN, INT_MAX, FLAGS, "mode" },
129  { "ppsrc", "mark main input as a pre-processed input and activate clean source input stream", OFFSET(ppsrc), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
130  { "field", "set the field to match from", OFFSET(field), AV_OPT_TYPE_INT, {.i64=FM_PARITY_AUTO}, -1, 1, FLAGS, "field" },
131  { "auto", "automatic (same value as 'order')", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_AUTO}, INT_MIN, INT_MAX, FLAGS, "field" },
132  { "bottom", "bottom field", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_BOTTOM}, INT_MIN, INT_MAX, FLAGS, "field" },
133  { "top", "top field", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_TOP}, INT_MIN, INT_MAX, FLAGS, "field" },
134  { "mchroma", "set whether or not chroma is included during the match comparisons", OFFSET(mchroma), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
135  { "y0", "define an exclusion band which excludes the lines between y0 and y1 from the field matching decision", OFFSET(y0), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
136  { "y1", "define an exclusion band which excludes the lines between y0 and y1 from the field matching decision", OFFSET(y1), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
137  { "scthresh", "set scene change detection threshold", OFFSET(scthresh_flt), AV_OPT_TYPE_DOUBLE, {.dbl=12}, 0, 100, FLAGS },
138  { "combmatch", "set combmatching mode", OFFSET(combmatch), AV_OPT_TYPE_INT, {.i64=COMBMATCH_SC}, COMBMATCH_NONE, NB_COMBMATCH-1, FLAGS, "combmatching" },
139  { "none", "disable combmatching", 0, AV_OPT_TYPE_CONST, {.i64=COMBMATCH_NONE}, INT_MIN, INT_MAX, FLAGS, "combmatching" },
140  { "sc", "enable combmatching only on scene change", 0, AV_OPT_TYPE_CONST, {.i64=COMBMATCH_SC}, INT_MIN, INT_MAX, FLAGS, "combmatching" },
141  { "full", "enable combmatching all the time", 0, AV_OPT_TYPE_CONST, {.i64=COMBMATCH_FULL}, INT_MIN, INT_MAX, FLAGS, "combmatching" },
142  { "combdbg", "enable comb debug", OFFSET(combdbg), AV_OPT_TYPE_INT, {.i64=COMBDBG_NONE}, COMBDBG_NONE, NB_COMBDBG-1, FLAGS, "dbglvl" },
143  { "none", "no forced calculation", 0, AV_OPT_TYPE_CONST, {.i64=COMBDBG_NONE}, INT_MIN, INT_MAX, FLAGS, "dbglvl" },
144  { "pcn", "calculate p/c/n", 0, AV_OPT_TYPE_CONST, {.i64=COMBDBG_PCN}, INT_MIN, INT_MAX, FLAGS, "dbglvl" },
145  { "pcnub", "calculate p/c/n/u/b", 0, AV_OPT_TYPE_CONST, {.i64=COMBDBG_PCNUB}, INT_MIN, INT_MAX, FLAGS, "dbglvl" },
146  { "cthresh", "set the area combing threshold used for combed frame detection", OFFSET(cthresh), AV_OPT_TYPE_INT, {.i64= 9}, -1, 0xff, FLAGS },
147  { "chroma", "set whether or not chroma is considered in the combed frame decision", OFFSET(chroma), AV_OPT_TYPE_BOOL,{.i64= 0}, 0, 1, FLAGS },
148  { "blockx", "set the x-axis size of the window used during combed frame detection", OFFSET(blockx), AV_OPT_TYPE_INT, {.i64=16}, 4, 1<<9, FLAGS },
149  { "blocky", "set the y-axis size of the window used during combed frame detection", OFFSET(blocky), AV_OPT_TYPE_INT, {.i64=16}, 4, 1<<9, FLAGS },
150  { "combpel", "set the number of combed pixels inside any of the blocky by blockx size blocks on the frame for the frame to be detected as combed", OFFSET(combpel), AV_OPT_TYPE_INT, {.i64=80}, 0, INT_MAX, FLAGS },
151  { NULL }
152 };
153 
154 AVFILTER_DEFINE_CLASS(fieldmatch);
155 
156 static int get_width(const FieldMatchContext *fm, const AVFrame *f, int plane)
157 {
158  return plane ? AV_CEIL_RSHIFT(f->width, fm->hsub) : f->width;
159 }
160 
161 static int get_height(const FieldMatchContext *fm, const AVFrame *f, int plane)
162 {
163  return plane ? AV_CEIL_RSHIFT(f->height, fm->vsub) : f->height;
164 }
165 
166 static int64_t luma_abs_diff(const AVFrame *f1, const AVFrame *f2)
167 {
168  int x, y;
169  const uint8_t *srcp1 = f1->data[0];
170  const uint8_t *srcp2 = f2->data[0];
171  const int src1_linesize = f1->linesize[0];
172  const int src2_linesize = f2->linesize[0];
173  const int width = f1->width;
174  const int height = f1->height;
175  int64_t acc = 0;
176 
177  for (y = 0; y < height; y++) {
178  for (x = 0; x < width; x++)
179  acc += abs(srcp1[x] - srcp2[x]);
180  srcp1 += src1_linesize;
181  srcp2 += src2_linesize;
182  }
183  return acc;
184 }
185 
186 static void fill_buf(uint8_t *data, int w, int h, int linesize, uint8_t v)
187 {
188  int y;
189 
190  for (y = 0; y < h; y++) {
191  memset(data, v, w);
192  data += linesize;
193  }
194 }
195 
196 static int calc_combed_score(const FieldMatchContext *fm, const AVFrame *src)
197 {
198  int x, y, plane, max_v = 0;
199  const int cthresh = fm->cthresh;
200  const int cthresh6 = cthresh * 6;
201 
202  for (plane = 0; plane < (fm->chroma ? 3 : 1); plane++) {
203  const uint8_t *srcp = src->data[plane];
204  const int src_linesize = src->linesize[plane];
205  const int width = get_width (fm, src, plane);
206  const int height = get_height(fm, src, plane);
207  uint8_t *cmkp = fm->cmask_data[plane];
208  const int cmk_linesize = fm->cmask_linesize[plane];
209 
210  if (cthresh < 0) {
211  fill_buf(cmkp, width, height, cmk_linesize, 0xff);
212  continue;
213  }
214  fill_buf(cmkp, width, height, cmk_linesize, 0);
215 
216  /* [1 -3 4 -3 1] vertical filter */
217 #define FILTER(xm2, xm1, xp1, xp2) \
218  abs( 4 * srcp[x] \
219  -3 * (srcp[x + (xm1)*src_linesize] + srcp[x + (xp1)*src_linesize]) \
220  + (srcp[x + (xm2)*src_linesize] + srcp[x + (xp2)*src_linesize])) > cthresh6
221 
222  /* first line */
223  for (x = 0; x < width; x++) {
224  const int s1 = abs(srcp[x] - srcp[x + src_linesize]);
225  if (s1 > cthresh && FILTER(2, 1, 1, 2))
226  cmkp[x] = 0xff;
227  }
228  srcp += src_linesize;
229  cmkp += cmk_linesize;
230 
231  /* second line */
232  for (x = 0; x < width; x++) {
233  const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
234  const int s2 = abs(srcp[x] - srcp[x + src_linesize]);
235  if (s1 > cthresh && s2 > cthresh && FILTER(2, -1, 1, 2))
236  cmkp[x] = 0xff;
237  }
238  srcp += src_linesize;
239  cmkp += cmk_linesize;
240 
241  /* all lines minus first two and last two */
242  for (y = 2; y < height-2; y++) {
243  for (x = 0; x < width; x++) {
244  const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
245  const int s2 = abs(srcp[x] - srcp[x + src_linesize]);
246  if (s1 > cthresh && s2 > cthresh && FILTER(-2, -1, 1, 2))
247  cmkp[x] = 0xff;
248  }
249  srcp += src_linesize;
250  cmkp += cmk_linesize;
251  }
252 
253  /* before-last line */
254  for (x = 0; x < width; x++) {
255  const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
256  const int s2 = abs(srcp[x] - srcp[x + src_linesize]);
257  if (s1 > cthresh && s2 > cthresh && FILTER(-2, -1, 1, -2))
258  cmkp[x] = 0xff;
259  }
260  srcp += src_linesize;
261  cmkp += cmk_linesize;
262 
263  /* last line */
264  for (x = 0; x < width; x++) {
265  const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
266  if (s1 > cthresh && FILTER(-2, -1, -1, -2))
267  cmkp[x] = 0xff;
268  }
269  }
270 
271  if (fm->chroma) {
272  uint8_t *cmkp = fm->cmask_data[0];
273  uint8_t *cmkpU = fm->cmask_data[1];
274  uint8_t *cmkpV = fm->cmask_data[2];
275  const int width = AV_CEIL_RSHIFT(src->width, fm->hsub);
276  const int height = AV_CEIL_RSHIFT(src->height, fm->vsub);
277  const int cmk_linesize = fm->cmask_linesize[0] << 1;
278  const int cmk_linesizeUV = fm->cmask_linesize[2];
279  uint8_t *cmkpp = cmkp - (cmk_linesize>>1);
280  uint8_t *cmkpn = cmkp + (cmk_linesize>>1);
281  uint8_t *cmkpnn = cmkp + cmk_linesize;
282  for (y = 1; y < height - 1; y++) {
283  cmkpp += cmk_linesize;
284  cmkp += cmk_linesize;
285  cmkpn += cmk_linesize;
286  cmkpnn += cmk_linesize;
287  cmkpV += cmk_linesizeUV;
288  cmkpU += cmk_linesizeUV;
289  for (x = 1; x < width - 1; x++) {
290 #define HAS_FF_AROUND(p, lz) (p[(x)-1 - (lz)] == 0xff || p[(x) - (lz)] == 0xff || p[(x)+1 - (lz)] == 0xff || \
291  p[(x)-1 ] == 0xff || p[(x)+1 ] == 0xff || \
292  p[(x)-1 + (lz)] == 0xff || p[(x) + (lz)] == 0xff || p[(x)+1 + (lz)] == 0xff)
293  if ((cmkpV[x] == 0xff && HAS_FF_AROUND(cmkpV, cmk_linesizeUV)) ||
294  (cmkpU[x] == 0xff && HAS_FF_AROUND(cmkpU, cmk_linesizeUV))) {
295  ((uint16_t*)cmkp)[x] = 0xffff;
296  ((uint16_t*)cmkpn)[x] = 0xffff;
297  if (y&1) ((uint16_t*)cmkpp)[x] = 0xffff;
298  else ((uint16_t*)cmkpnn)[x] = 0xffff;
299  }
300  }
301  }
302  }
303 
304  {
305  const int blockx = fm->blockx;
306  const int blocky = fm->blocky;
307  const int xhalf = blockx/2;
308  const int yhalf = blocky/2;
309  const int cmk_linesize = fm->cmask_linesize[0];
310  const uint8_t *cmkp = fm->cmask_data[0] + cmk_linesize;
311  const int width = src->width;
312  const int height = src->height;
313  const int xblocks = ((width+xhalf)/blockx) + 1;
314  const int xblocks4 = xblocks<<2;
315  const int yblocks = ((height+yhalf)/blocky) + 1;
316  int *c_array = fm->c_array;
317  const int arraysize = (xblocks*yblocks)<<2;
318  int heighta = (height/(blocky/2))*(blocky/2);
319  const int widtha = (width /(blockx/2))*(blockx/2);
320  if (heighta == height)
321  heighta = height - yhalf;
322  memset(c_array, 0, arraysize * sizeof(*c_array));
323 
324 #define C_ARRAY_ADD(v) do { \
325  const int box1 = (x / blockx) * 4; \
326  const int box2 = ((x + xhalf) / blockx) * 4; \
327  c_array[temp1 + box1 ] += v; \
328  c_array[temp1 + box2 + 1] += v; \
329  c_array[temp2 + box1 + 2] += v; \
330  c_array[temp2 + box2 + 3] += v; \
331 } while (0)
332 
333 #define VERTICAL_HALF(y_start, y_end) do { \
334  for (y = y_start; y < y_end; y++) { \
335  const int temp1 = (y / blocky) * xblocks4; \
336  const int temp2 = ((y + yhalf) / blocky) * xblocks4; \
337  for (x = 0; x < width; x++) \
338  if (cmkp[x - cmk_linesize] == 0xff && \
339  cmkp[x ] == 0xff && \
340  cmkp[x + cmk_linesize] == 0xff) \
341  C_ARRAY_ADD(1); \
342  cmkp += cmk_linesize; \
343  } \
344 } while (0)
345 
346  VERTICAL_HALF(1, yhalf);
347 
348  for (y = yhalf; y < heighta; y += yhalf) {
349  const int temp1 = (y / blocky) * xblocks4;
350  const int temp2 = ((y + yhalf) / blocky) * xblocks4;
351 
352  for (x = 0; x < widtha; x += xhalf) {
353  const uint8_t *cmkp_tmp = cmkp + x;
354  int u, v, sum = 0;
355  for (u = 0; u < yhalf; u++) {
356  for (v = 0; v < xhalf; v++)
357  if (cmkp_tmp[v - cmk_linesize] == 0xff &&
358  cmkp_tmp[v ] == 0xff &&
359  cmkp_tmp[v + cmk_linesize] == 0xff)
360  sum++;
361  cmkp_tmp += cmk_linesize;
362  }
363  if (sum)
364  C_ARRAY_ADD(sum);
365  }
366 
367  for (x = widtha; x < width; x++) {
368  const uint8_t *cmkp_tmp = cmkp + x;
369  int u, sum = 0;
370  for (u = 0; u < yhalf; u++) {
371  if (cmkp_tmp[-cmk_linesize] == 0xff &&
372  cmkp_tmp[ 0] == 0xff &&
373  cmkp_tmp[ cmk_linesize] == 0xff)
374  sum++;
375  cmkp_tmp += cmk_linesize;
376  }
377  if (sum)
378  C_ARRAY_ADD(sum);
379  }
380 
381  cmkp += cmk_linesize * yhalf;
382  }
383 
384  VERTICAL_HALF(heighta, height - 1);
385 
386  for (x = 0; x < arraysize; x++)
387  if (c_array[x] > max_v)
388  max_v = c_array[x];
389  }
390  return max_v;
391 }
392 
393 // the secret is that tbuffer is an interlaced, offset subset of all the lines
394 static void build_abs_diff_mask(const uint8_t *prvp, int prv_linesize,
395  const uint8_t *nxtp, int nxt_linesize,
396  uint8_t *tbuffer, int tbuf_linesize,
397  int width, int height)
398 {
399  int y, x;
400 
401  prvp -= prv_linesize;
402  nxtp -= nxt_linesize;
403  for (y = 0; y < height; y++) {
404  for (x = 0; x < width; x++)
405  tbuffer[x] = FFABS(prvp[x] - nxtp[x]);
406  prvp += prv_linesize;
407  nxtp += nxt_linesize;
408  tbuffer += tbuf_linesize;
409  }
410 }
411 
412 /**
413  * Build a map over which pixels differ a lot/a little
414  */
416  const uint8_t *prvp, int prv_linesize,
417  const uint8_t *nxtp, int nxt_linesize,
418  uint8_t *dstp, int dst_linesize, int height,
419  int width, int plane)
420 {
421  int x, y, u, diff, count;
422  int tpitch = plane ? fm->tpitchuv : fm->tpitchy;
423  const uint8_t *dp = fm->tbuffer + tpitch;
424 
425  build_abs_diff_mask(prvp, prv_linesize, nxtp, nxt_linesize,
426  fm->tbuffer, tpitch, width, height>>1);
427 
428  for (y = 2; y < height - 2; y += 2) {
429  for (x = 1; x < width - 1; x++) {
430  diff = dp[x];
431  if (diff > 3) {
432  for (count = 0, u = x-1; u < x+2 && count < 2; u++) {
433  count += dp[u-tpitch] > 3;
434  count += dp[u ] > 3;
435  count += dp[u+tpitch] > 3;
436  }
437  if (count > 1) {
438  dstp[x] = 1;
439  if (diff > 19) {
440  int upper = 0, lower = 0;
441  for (count = 0, u = x-1; u < x+2 && count < 6; u++) {
442  if (dp[u-tpitch] > 19) { count++; upper = 1; }
443  if (dp[u ] > 19) count++;
444  if (dp[u+tpitch] > 19) { count++; lower = 1; }
445  }
446  if (count > 3) {
447  if (upper && lower) {
448  dstp[x] |= 1<<1;
449  } else {
450  int upper2 = 0, lower2 = 0;
451  for (u = FFMAX(x-4,0); u < FFMIN(x+5,width); u++) {
452  if (y != 2 && dp[u-2*tpitch] > 19) upper2 = 1;
453  if ( dp[u- tpitch] > 19) upper = 1;
454  if ( dp[u+ tpitch] > 19) lower = 1;
455  if (y != height-4 && dp[u+2*tpitch] > 19) lower2 = 1;
456  }
457  if ((upper && (lower || upper2)) ||
458  (lower && (upper || lower2)))
459  dstp[x] |= 1<<1;
460  else if (count > 5)
461  dstp[x] |= 1<<2;
462  }
463  }
464  }
465  }
466  }
467  }
468  dp += tpitch;
469  dstp += dst_linesize;
470  }
471 }
472 
473 enum { mP, mC, mN, mB, mU };
474 
475 static int get_field_base(int match, int field)
476 {
477  return match < 3 ? 2 - field : 1 + field;
478 }
479 
480 static AVFrame *select_frame(FieldMatchContext *fm, int match)
481 {
482  if (match == mP || match == mB) return fm->prv;
483  else if (match == mN || match == mU) return fm->nxt;
484  else /* match == mC */ return fm->src;
485 }
486 
487 static int compare_fields(FieldMatchContext *fm, int match1, int match2, int field)
488 {
489  int plane, ret;
490  uint64_t accumPc = 0, accumPm = 0, accumPml = 0;
491  uint64_t accumNc = 0, accumNm = 0, accumNml = 0;
492  int norm1, norm2, mtn1, mtn2;
493  float c1, c2, mr;
494  const AVFrame *src = fm->src;
495 
496  for (plane = 0; plane < (fm->mchroma ? 3 : 1); plane++) {
497  int x, y, temp1, temp2, fbase;
498  const AVFrame *prev, *next;
499  uint8_t *mapp = fm->map_data[plane];
500  int map_linesize = fm->map_linesize[plane];
501  const uint8_t *srcp = src->data[plane];
502  const int src_linesize = src->linesize[plane];
503  const int srcf_linesize = src_linesize << 1;
504  int prv_linesize, nxt_linesize;
505  int prvf_linesize, nxtf_linesize;
506  const int width = get_width (fm, src, plane);
507  const int height = get_height(fm, src, plane);
508  const int y0a = fm->y0 >> (plane ? fm->vsub : 0);
509  const int y1a = fm->y1 >> (plane ? fm->vsub : 0);
510  const int startx = (plane == 0 ? 8 : 8 >> fm->hsub);
511  const int stopx = width - startx;
512  const uint8_t *srcpf, *srcf, *srcnf;
513  const uint8_t *prvpf, *prvnf, *nxtpf, *nxtnf;
514 
515  fill_buf(mapp, width, height, map_linesize, 0);
516 
517  /* match1 */
518  fbase = get_field_base(match1, field);
519  srcf = srcp + (fbase + 1) * src_linesize;
520  srcpf = srcf - srcf_linesize;
521  srcnf = srcf + srcf_linesize;
522  mapp = mapp + fbase * map_linesize;
523  prev = select_frame(fm, match1);
524  prv_linesize = prev->linesize[plane];
525  prvf_linesize = prv_linesize << 1;
526  prvpf = prev->data[plane] + fbase * prv_linesize; // previous frame, previous field
527  prvnf = prvpf + prvf_linesize; // previous frame, next field
528 
529  /* match2 */
530  fbase = get_field_base(match2, field);
531  next = select_frame(fm, match2);
532  nxt_linesize = next->linesize[plane];
533  nxtf_linesize = nxt_linesize << 1;
534  nxtpf = next->data[plane] + fbase * nxt_linesize; // next frame, previous field
535  nxtnf = nxtpf + nxtf_linesize; // next frame, next field
536 
537  map_linesize <<= 1;
538  if ((match1 >= 3 && field == 1) || (match1 < 3 && field != 1))
539  build_diff_map(fm, prvpf, prvf_linesize, nxtpf, nxtf_linesize,
540  mapp, map_linesize, height, width, plane);
541  else
542  build_diff_map(fm, prvnf, prvf_linesize, nxtnf, nxtf_linesize,
543  mapp + map_linesize, map_linesize, height, width, plane);
544 
545  for (y = 2; y < height - 2; y += 2) {
546  if (y0a == y1a || y < y0a || y > y1a) {
547  for (x = startx; x < stopx; x++) {
548  if (mapp[x] > 0 || mapp[x + map_linesize] > 0) {
549  temp1 = srcpf[x] + (srcf[x] << 2) + srcnf[x]; // [1 4 1]
550 
551  temp2 = abs(3 * (prvpf[x] + prvnf[x]) - temp1);
552  if (temp2 > 23 && ((mapp[x]&1) || (mapp[x + map_linesize]&1)))
553  accumPc += temp2;
554  if (temp2 > 42) {
555  if ((mapp[x]&2) || (mapp[x + map_linesize]&2))
556  accumPm += temp2;
557  if ((mapp[x]&4) || (mapp[x + map_linesize]&4))
558  accumPml += temp2;
559  }
560 
561  temp2 = abs(3 * (nxtpf[x] + nxtnf[x]) - temp1);
562  if (temp2 > 23 && ((mapp[x]&1) || (mapp[x + map_linesize]&1)))
563  accumNc += temp2;
564  if (temp2 > 42) {
565  if ((mapp[x]&2) || (mapp[x + map_linesize]&2))
566  accumNm += temp2;
567  if ((mapp[x]&4) || (mapp[x + map_linesize]&4))
568  accumNml += temp2;
569  }
570  }
571  }
572  }
573  prvpf += prvf_linesize;
574  prvnf += prvf_linesize;
575  srcpf += srcf_linesize;
576  srcf += srcf_linesize;
577  srcnf += srcf_linesize;
578  nxtpf += nxtf_linesize;
579  nxtnf += nxtf_linesize;
580  mapp += map_linesize;
581  }
582  }
583 
584  if (accumPm < 500 && accumNm < 500 && (accumPml >= 500 || accumNml >= 500) &&
585  FFMAX(accumPml,accumNml) > 3*FFMIN(accumPml,accumNml)) {
586  accumPm = accumPml;
587  accumNm = accumNml;
588  }
589 
590  norm1 = (int)((accumPc / 6.0f) + 0.5f);
591  norm2 = (int)((accumNc / 6.0f) + 0.5f);
592  mtn1 = (int)((accumPm / 6.0f) + 0.5f);
593  mtn2 = (int)((accumNm / 6.0f) + 0.5f);
594  c1 = ((float)FFMAX(norm1,norm2)) / ((float)FFMAX(FFMIN(norm1,norm2),1));
595  c2 = ((float)FFMAX(mtn1, mtn2)) / ((float)FFMAX(FFMIN(mtn1, mtn2), 1));
596  mr = ((float)FFMAX(mtn1, mtn2)) / ((float)FFMAX(FFMAX(norm1,norm2),1));
597  if (((mtn1 >= 500 || mtn2 >= 500) && (mtn1*2 < mtn2*1 || mtn2*2 < mtn1*1)) ||
598  ((mtn1 >= 1000 || mtn2 >= 1000) && (mtn1*3 < mtn2*2 || mtn2*3 < mtn1*2)) ||
599  ((mtn1 >= 2000 || mtn2 >= 2000) && (mtn1*5 < mtn2*4 || mtn2*5 < mtn1*4)) ||
600  ((mtn1 >= 4000 || mtn2 >= 4000) && c2 > c1))
601  ret = mtn1 > mtn2 ? match2 : match1;
602  else if (mr > 0.005 && FFMAX(mtn1, mtn2) > 150 && (mtn1*2 < mtn2*1 || mtn2*2 < mtn1*1))
603  ret = mtn1 > mtn2 ? match2 : match1;
604  else
605  ret = norm1 > norm2 ? match2 : match1;
606  return ret;
607 }
608 
609 static void copy_fields(const FieldMatchContext *fm, AVFrame *dst,
610  const AVFrame *src, int field)
611 {
612  int plane;
613  for (plane = 0; plane < 4 && src->data[plane] && src->linesize[plane]; plane++) {
614  const int plane_h = get_height(fm, src, plane);
615  const int nb_copy_fields = (plane_h >> 1) + (field ? 0 : (plane_h & 1));
616  av_image_copy_plane(dst->data[plane] + field*dst->linesize[plane], dst->linesize[plane] << 1,
617  src->data[plane] + field*src->linesize[plane], src->linesize[plane] << 1,
618  get_width(fm, src, plane) * fm->bpc, nb_copy_fields);
619  }
620 }
621 
622 static AVFrame *create_weave_frame(AVFilterContext *ctx, int match, int field,
623  const AVFrame *prv, AVFrame *src, const AVFrame *nxt)
624 {
625  AVFrame *dst;
626  FieldMatchContext *fm = ctx->priv;
627 
628  if (match == mC) {
629  dst = av_frame_clone(src);
630  } else {
631  AVFilterLink *outlink = ctx->outputs[0];
632 
633  dst = ff_get_video_buffer(outlink, outlink->w, outlink->h);
634  if (!dst)
635  return NULL;
636  av_frame_copy_props(dst, src);
637 
638  switch (match) {
639  case mP: copy_fields(fm, dst, src, 1-field); copy_fields(fm, dst, prv, field); break;
640  case mN: copy_fields(fm, dst, src, 1-field); copy_fields(fm, dst, nxt, field); break;
641  case mB: copy_fields(fm, dst, src, field); copy_fields(fm, dst, prv, 1-field); break;
642  case mU: copy_fields(fm, dst, src, field); copy_fields(fm, dst, nxt, 1-field); break;
643  default: av_assert0(0);
644  }
645  }
646  return dst;
647 }
648 
649 static int checkmm(AVFilterContext *ctx, int *combs, int m1, int m2,
650  AVFrame **gen_frames, int field)
651 {
652  const FieldMatchContext *fm = ctx->priv;
653 
654 #define LOAD_COMB(mid) do { \
655  if (combs[mid] < 0) { \
656  if (!gen_frames[mid]) \
657  gen_frames[mid] = create_weave_frame(ctx, mid, field, \
658  fm->prv, fm->src, fm->nxt); \
659  combs[mid] = calc_combed_score(fm, gen_frames[mid]); \
660  } \
661 } while (0)
662 
663  LOAD_COMB(m1);
664  LOAD_COMB(m2);
665 
666  if ((combs[m2] * 3 < combs[m1] || (combs[m2] * 2 < combs[m1] && combs[m1] > fm->combpel)) &&
667  abs(combs[m2] - combs[m1]) >= 30 && combs[m2] < fm->combpel)
668  return m2;
669  else
670  return m1;
671 }
672 
673 static const int fxo0m[] = { mP, mC, mN, mB, mU };
674 static const int fxo1m[] = { mN, mC, mP, mU, mB };
675 
676 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
677 {
678  AVFilterContext *ctx = inlink->dst;
679  AVFilterLink *outlink = ctx->outputs[0];
680  FieldMatchContext *fm = ctx->priv;
681  int combs[] = { -1, -1, -1, -1, -1 };
682  int order, field, i, match, sc = 0;
683  const int *fxo;
684  AVFrame *gen_frames[] = { NULL, NULL, NULL, NULL, NULL };
685  AVFrame *dst;
686 
687  /* update frames queue(s) */
688 #define SLIDING_FRAME_WINDOW(prv, src, nxt) do { \
689  if (prv != src) /* 2nd loop exception (1st has prv==src and we don't want to loose src) */ \
690  av_frame_free(&prv); \
691  prv = src; \
692  src = nxt; \
693  if (in) \
694  nxt = in; \
695  if (!prv) \
696  prv = src; \
697  if (!prv) /* received only one frame at that point */ \
698  return 0; \
699  av_assert0(prv && src && nxt); \
700 } while (0)
701  if (FF_INLINK_IDX(inlink) == INPUT_MAIN) {
702  av_assert0(fm->got_frame[INPUT_MAIN] == 0);
703  SLIDING_FRAME_WINDOW(fm->prv, fm->src, fm->nxt);
704  fm->got_frame[INPUT_MAIN] = 1;
705  } else {
707  SLIDING_FRAME_WINDOW(fm->prv2, fm->src2, fm->nxt2);
708  fm->got_frame[INPUT_CLEANSRC] = 1;
709  }
710  if (!fm->got_frame[INPUT_MAIN] || (fm->ppsrc && !fm->got_frame[INPUT_CLEANSRC]))
711  return 0;
713  in = fm->src;
714 
715  /* parity */
716  order = fm->order != FM_PARITY_AUTO ? fm->order : (in->interlaced_frame ? in->top_field_first : 1);
717  field = fm->field != FM_PARITY_AUTO ? fm->field : order;
718  av_assert0(order == 0 || order == 1 || field == 0 || field == 1);
719  fxo = field ^ order ? fxo1m : fxo0m;
720 
721  /* debug mode: we generate all the fields combinations and their associated
722  * combed score. XXX: inject as frame metadata? */
723  if (fm->combdbg) {
724  for (i = 0; i < FF_ARRAY_ELEMS(combs); i++) {
725  if (i > mN && fm->combdbg == COMBDBG_PCN)
726  break;
727  gen_frames[i] = create_weave_frame(ctx, i, field, fm->prv, fm->src, fm->nxt);
728  if (!gen_frames[i])
729  return AVERROR(ENOMEM);
730  combs[i] = calc_combed_score(fm, gen_frames[i]);
731  }
732  av_log(ctx, AV_LOG_INFO, "COMBS: %3d %3d %3d %3d %3d\n",
733  combs[0], combs[1], combs[2], combs[3], combs[4]);
734  } else {
735  gen_frames[mC] = av_frame_clone(fm->src);
736  if (!gen_frames[mC])
737  return AVERROR(ENOMEM);
738  }
739 
740  /* p/c selection and optional 3-way p/c/n matches */
741  match = compare_fields(fm, fxo[mC], fxo[mP], field);
742  if (fm->mode == MODE_PCN || fm->mode == MODE_PCN_UB)
743  match = compare_fields(fm, match, fxo[mN], field);
744 
745  /* scene change check */
746  if (fm->combmatch == COMBMATCH_SC) {
747  if (fm->lastn == outlink->frame_count_in - 1) {
748  if (fm->lastscdiff > fm->scthresh)
749  sc = 1;
750  } else if (luma_abs_diff(fm->prv, fm->src) > fm->scthresh) {
751  sc = 1;
752  }
753 
754  if (!sc) {
755  fm->lastn = outlink->frame_count_in;
756  fm->lastscdiff = luma_abs_diff(fm->src, fm->nxt);
757  sc = fm->lastscdiff > fm->scthresh;
758  }
759  }
760 
761  if (fm->combmatch == COMBMATCH_FULL || (fm->combmatch == COMBMATCH_SC && sc)) {
762  switch (fm->mode) {
763  /* 2-way p/c matches */
764  case MODE_PC:
765  match = checkmm(ctx, combs, match, match == fxo[mP] ? fxo[mC] : fxo[mP], gen_frames, field);
766  break;
767  case MODE_PC_N:
768  match = checkmm(ctx, combs, match, fxo[mN], gen_frames, field);
769  break;
770  case MODE_PC_U:
771  match = checkmm(ctx, combs, match, fxo[mU], gen_frames, field);
772  break;
773  case MODE_PC_N_UB:
774  match = checkmm(ctx, combs, match, fxo[mN], gen_frames, field);
775  match = checkmm(ctx, combs, match, fxo[mU], gen_frames, field);
776  match = checkmm(ctx, combs, match, fxo[mB], gen_frames, field);
777  break;
778  /* 3-way p/c/n matches */
779  case MODE_PCN:
780  match = checkmm(ctx, combs, match, match == fxo[mP] ? fxo[mC] : fxo[mP], gen_frames, field);
781  break;
782  case MODE_PCN_UB:
783  match = checkmm(ctx, combs, match, fxo[mU], gen_frames, field);
784  match = checkmm(ctx, combs, match, fxo[mB], gen_frames, field);
785  break;
786  default:
787  av_assert0(0);
788  }
789  }
790 
791  /* get output frame and drop the others */
792  if (fm->ppsrc) {
793  /* field matching was based on a filtered/post-processed input, we now
794  * pick the untouched fields from the clean source */
795  dst = create_weave_frame(ctx, match, field, fm->prv2, fm->src2, fm->nxt2);
796  } else {
797  if (!gen_frames[match]) { // XXX: is that possible?
798  dst = create_weave_frame(ctx, match, field, fm->prv, fm->src, fm->nxt);
799  } else {
800  dst = gen_frames[match];
801  gen_frames[match] = NULL;
802  }
803  }
804  if (!dst)
805  return AVERROR(ENOMEM);
806  for (i = 0; i < FF_ARRAY_ELEMS(gen_frames); i++)
807  av_frame_free(&gen_frames[i]);
808 
809  /* mark the frame we are unable to match properly as interlaced so a proper
810  * de-interlacer can take the relay */
811  dst->interlaced_frame = combs[match] >= fm->combpel;
812  if (dst->interlaced_frame) {
813  av_log(ctx, AV_LOG_WARNING, "Frame #%"PRId64" at %s is still interlaced\n",
814  outlink->frame_count_in, av_ts2timestr(in->pts, &inlink->time_base));
815  dst->top_field_first = field;
816  }
817 
818  av_log(ctx, AV_LOG_DEBUG, "SC:%d | COMBS: %3d %3d %3d %3d %3d (combpel=%d)"
819  " match=%d combed=%s\n", sc, combs[0], combs[1], combs[2], combs[3], combs[4],
820  fm->combpel, match, dst->interlaced_frame ? "YES" : "NO");
821 
822  return ff_filter_frame(outlink, dst);
823 }
824 
826 {
827  FieldMatchContext *fm = ctx->priv;
828  AVFrame *frame = NULL;
829  int ret = 0, status;
830  int64_t pts;
831 
832  if ((fm->got_frame[INPUT_MAIN] == 0) &&
833  (ret = ff_inlink_consume_frame(ctx->inputs[INPUT_MAIN], &frame)) > 0) {
834  ret = filter_frame(ctx->inputs[INPUT_MAIN], frame);
835  if (ret < 0)
836  return ret;
837  }
838  if (ret < 0)
839  return ret;
840  if (fm->ppsrc &&
841  (fm->got_frame[INPUT_CLEANSRC] == 0) &&
842  (ret = ff_inlink_consume_frame(ctx->inputs[INPUT_CLEANSRC], &frame)) > 0) {
843  ret = filter_frame(ctx->inputs[INPUT_CLEANSRC], frame);
844  if (ret < 0)
845  return ret;
846  }
847  if (ret < 0) {
848  return ret;
849  } else if (ff_inlink_acknowledge_status(ctx->inputs[INPUT_MAIN], &status, &pts)) {
850  if (status == AVERROR_EOF) { // flushing
851  fm->eof |= 1 << INPUT_MAIN;
852  ret = filter_frame(ctx->inputs[INPUT_MAIN], NULL);
853  }
854  ff_outlink_set_status(ctx->outputs[0], status, pts);
855  return ret;
856  } else if (fm->ppsrc && ff_inlink_acknowledge_status(ctx->inputs[INPUT_CLEANSRC], &status, &pts)) {
857  if (status == AVERROR_EOF) { // flushing
858  fm->eof |= 1 << INPUT_CLEANSRC;
859  ret = filter_frame(ctx->inputs[INPUT_CLEANSRC], NULL);
860  }
861  ff_outlink_set_status(ctx->outputs[0], status, pts);
862  return ret;
863  } else {
864  if (ff_outlink_frame_wanted(ctx->outputs[0])) {
865  if (fm->got_frame[INPUT_MAIN] == 0)
867  if (fm->ppsrc && (fm->got_frame[INPUT_CLEANSRC] == 0))
869  }
870  return 0;
871  }
872 }
873 
875 {
876  FieldMatchContext *fm = ctx->priv;
877 
878  static const enum AVPixelFormat pix_fmts[] = {
882  };
883  static const enum AVPixelFormat unproc_pix_fmts[] = {
898  };
899  int ret;
900 
901  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
902  if (!fmts_list)
903  return AVERROR(ENOMEM);
904  if (!fm->ppsrc) {
905  return ff_set_common_formats(ctx, fmts_list);
906  }
907 
908  if ((ret = ff_formats_ref(fmts_list, &ctx->inputs[INPUT_MAIN]->out_formats)) < 0)
909  return ret;
910  fmts_list = ff_make_format_list(unproc_pix_fmts);
911  if (!fmts_list)
912  return AVERROR(ENOMEM);
913  if ((ret = ff_formats_ref(fmts_list, &ctx->outputs[0]->in_formats)) < 0)
914  return ret;
915  if ((ret = ff_formats_ref(fmts_list, &ctx->inputs[INPUT_CLEANSRC]->out_formats)) < 0)
916  return ret;
917  return 0;
918 }
919 
920 static int config_input(AVFilterLink *inlink)
921 {
922  int ret;
923  AVFilterContext *ctx = inlink->dst;
924  FieldMatchContext *fm = ctx->priv;
925  const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
926  const int w = inlink->w;
927  const int h = inlink->h;
928 
929  fm->scthresh = (int64_t)((w * h * 255.0 * fm->scthresh_flt) / 100.0);
930 
931  if ((ret = av_image_alloc(fm->map_data, fm->map_linesize, w, h, inlink->format, 32)) < 0 ||
932  (ret = av_image_alloc(fm->cmask_data, fm->cmask_linesize, w, h, inlink->format, 32)) < 0)
933  return ret;
934 
935  fm->hsub = pix_desc->log2_chroma_w;
936  fm->vsub = pix_desc->log2_chroma_h;
937 
938  fm->tpitchy = FFALIGN(w, 16);
939  fm->tpitchuv = FFALIGN(w >> 1, 16);
940 
941  fm->tbuffer = av_malloc(h/2 * fm->tpitchy);
942  fm->c_array = av_malloc((((w + fm->blockx/2)/fm->blockx)+1) *
943  (((h + fm->blocky/2)/fm->blocky)+1) *
944  4 * sizeof(*fm->c_array));
945  if (!fm->tbuffer || !fm->c_array)
946  return AVERROR(ENOMEM);
947 
948  return 0;
949 }
950 
952 {
953  const FieldMatchContext *fm = ctx->priv;
954  AVFilterPad pad = {
955  .name = av_strdup("main"),
956  .type = AVMEDIA_TYPE_VIDEO,
957  .config_props = config_input,
958  };
959  int ret;
960 
961  if (!pad.name)
962  return AVERROR(ENOMEM);
963  if ((ret = ff_insert_inpad(ctx, INPUT_MAIN, &pad)) < 0) {
964  av_freep(&pad.name);
965  return ret;
966  }
967 
968  if (fm->ppsrc) {
969  pad.name = av_strdup("clean_src");
970  pad.config_props = NULL;
971  if (!pad.name)
972  return AVERROR(ENOMEM);
973  if ((ret = ff_insert_inpad(ctx, INPUT_CLEANSRC, &pad)) < 0) {
974  av_freep(&pad.name);
975  return ret;
976  }
977  }
978 
979  if ((fm->blockx & (fm->blockx - 1)) ||
980  (fm->blocky & (fm->blocky - 1))) {
981  av_log(ctx, AV_LOG_ERROR, "blockx and blocky settings must be power of two\n");
982  return AVERROR(EINVAL);
983  }
984 
985  if (fm->combpel > fm->blockx * fm->blocky) {
986  av_log(ctx, AV_LOG_ERROR, "Combed pixel should not be larger than blockx x blocky\n");
987  return AVERROR(EINVAL);
988  }
989 
990  return 0;
991 }
992 
994 {
995  int i;
996  FieldMatchContext *fm = ctx->priv;
997 
998  if (fm->prv != fm->src)
999  av_frame_free(&fm->prv);
1000  if (fm->nxt != fm->src)
1001  av_frame_free(&fm->nxt);
1002  if (fm->prv2 != fm->src2)
1003  av_frame_free(&fm->prv2);
1004  if (fm->nxt2 != fm->src2)
1005  av_frame_free(&fm->nxt2);
1006  av_frame_free(&fm->src);
1007  av_frame_free(&fm->src2);
1008  av_freep(&fm->map_data[0]);
1009  av_freep(&fm->cmask_data[0]);
1010  av_freep(&fm->tbuffer);
1011  av_freep(&fm->c_array);
1012  for (i = 0; i < ctx->nb_inputs; i++)
1013  av_freep(&ctx->input_pads[i].name);
1014 }
1015 
1016 static int config_output(AVFilterLink *outlink)
1017 {
1018  AVFilterContext *ctx = outlink->src;
1019  FieldMatchContext *fm = ctx->priv;
1020  const AVFilterLink *inlink =
1021  ctx->inputs[fm->ppsrc ? INPUT_CLEANSRC : INPUT_MAIN];
1023 
1024  fm->bpc = (desc->comp[0].depth + 7) / 8;
1025  outlink->time_base = inlink->time_base;
1026  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
1027  outlink->frame_rate = inlink->frame_rate;
1028  outlink->w = inlink->w;
1029  outlink->h = inlink->h;
1030  return 0;
1031 }
1032 
1034  {
1035  .name = "default",
1036  .type = AVMEDIA_TYPE_VIDEO,
1037  .config_props = config_output,
1038  },
1039  { NULL }
1040 };
1041 
1043  .name = "fieldmatch",
1044  .description = NULL_IF_CONFIG_SMALL("Field matching for inverse telecine."),
1045  .query_formats = query_formats,
1046  .priv_size = sizeof(FieldMatchContext),
1047  .init = fieldmatch_init,
1048  .activate = activate,
1050  .inputs = NULL,
1051  .outputs = fieldmatch_outputs,
1052  .priv_class = &fieldmatch_class,
1054 };
int plane
Definition: avisynth_c.h:422
comb_matching_mode
Definition: vf_fieldmatch.c:62
int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
Take a frame from the link's FIFO and update the link's stats.
Definition: avfilter.c:1481
#define VERTICAL_HALF(y_start, y_end)
#define NULL
Definition: coverity.c:32
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:381
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2406
This structure describes decoded (raw) audio or video data.
Definition: frame.h:218
AVOption.
Definition: opt.h:246
#define LOAD_COMB(mid)
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:389
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:65
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
int av_image_alloc(uint8_t *pointers[4], int linesizes[4], int w, int h, enum AVPixelFormat pix_fmt, int align)
Allocate an image with size w and h and pixel format pix_fmt, and fill pointers and linesizes accordi...
Definition: imgutils.c:192
int acc
Definition: yuv2rgb.c:554
static int get_width(const FieldMatchContext *fm, const AVFrame *f, int plane)
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
Definition: avfilter.h:105
static int get_field_base(int match, int field)
static int config_output(AVFilterLink *outlink)
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:383
static void fill_buf(uint8_t *data, int w, int h, int linesize, uint8_t v)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:99
#define src
Definition: vp8dsp.c:254
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
Definition: filters.h:189
void ff_inlink_request_frame(AVFilterLink *link)
Mark that a frame is wanted on the link.
Definition: avfilter.c:1607
static int ff_outlink_frame_wanted(AVFilterLink *link)
Test if a frame is wanted on an output link.
Definition: filters.h:172
int combmatch
comb_matching_mode
Definition: vf_fieldmatch.c:97
#define INPUT_CLEANSRC
Definition: vf_fieldmatch.c:44
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
BYTE int const BYTE * srcp
Definition: avisynth_c.h:813
const char * name
Pad name.
Definition: internal.h:60
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
static AVFrame * create_weave_frame(AVFilterContext *ctx, int match, int field, const AVFrame *prv, AVFrame *src, const AVFrame *nxt)
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
#define av_malloc(s)
static av_cold int uninit(AVCodecContext *avctx)
Definition: crystalhd.c:279
AVOptions.
timestamp utils, mostly useful for debugging/logging purposes
#define f(width, name)
Definition: cbs_vp9.c:255
static const AVOption fieldmatch_options[]
#define INPUT_MAIN
Definition: vf_fieldmatch.c:43
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:311
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:253
static AVFrame * frame
#define height
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
static const int fxo0m[]
static const uint64_t c1
Definition: murmur3.c:49
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
#define AVERROR_EOF
End of file.
Definition: error.h:55
uint8_t * map_data[4]
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:392
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:365
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:384
#define FFALIGN(x, a)
Definition: macros.h:48
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:54
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
Definition: avfilter.c:1436
AVFilterPad * input_pads
array of input pads
Definition: avfilter.h:345
int width
Definition: frame.h:276
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
#define s2
Definition: regdef.h:39
static av_always_inline void chroma(WaveformContext *s, AVFrame *in, AVFrame *out, int component, int intensity, int offset_y, int offset_x, int column, int mirror, int jobnr, int nb_jobs)
Definition: vf_waveform.c:1510
BYTE * dstp
Definition: avisynth_c.h:813
#define AVERROR(e)
Definition: error.h:43
static av_cold int fieldmatch_init(AVFilterContext *ctx)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
#define av_ts2timestr(ts, tb)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: timestamp.h:76
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
void * priv
private data for use by the filter
Definition: avfilter.h:353
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
simple assert() macros that are a bit more flexible than ISO C assert().
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:382
#define C_ARRAY_ADD(v)
GLsizei count
Definition: opengl_enc.c:109
#define FFMAX(a, b)
Definition: common.h:94
uint32_t eof
bitmask for end of stream
Definition: vf_fieldmatch.c:84
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:377
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static int compare_fields(FieldMatchContext *fm, int match1, int match2, int field)
unsigned nb_inputs
number of input pads
Definition: avfilter.h:347
#define FFMIN(a, b)
Definition: common.h:96
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
fieldmatch_parity
Definition: vf_fieldmatch.c:46
#define width
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:440
uint8_t w
Definition: llviddspenc.c:38
static const AVFilterPad fieldmatch_outputs[]
static AVFrame * select_frame(FieldMatchContext *fm, int match)
AVFrame * nxt
main sliding window of 3 frames
Definition: vf_fieldmatch.c:79
AVFormatContext * ctx
Definition: movenc.c:48
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
AVFILTER_DEFINE_CLASS(fieldmatch)
int bpc
bytes per component
Definition: vf_fieldmatch.c:83
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:378
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:538
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
#define FF_ARRAY_ELEMS(a)
static int activate(AVFilterContext *ctx)
static void build_diff_map(FieldMatchContext *fm, const uint8_t *prvp, int prv_linesize, const uint8_t *nxtp, int nxt_linesize, uint8_t *dstp, int dst_linesize, int height, int width, int plane)
Build a map over which pixels differ a lot/a little.
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:390
#define OFFSET(x)
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
AVFilter ff_vf_fieldmatch
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:387
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:249
int got_frame[2]
frame request flag for each input stream
Definition: vf_fieldmatch.c:81
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;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);returnNULL;}returnac;}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;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->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);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:379
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
matching_mode
Definition: vf_fieldmatch.c:52
#define HAS_FF_AROUND(p, lz)
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:385
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:376
#define s1
Definition: regdef.h:38
static const int fxo1m[]
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:388
static int64_t pts
#define flags(name, subs,...)
Definition: cbs_av1.c:596
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:380
static int checkmm(AVFilterContext *ctx, int *combs, int m1, int m2, AVFrame **gen_frames, int field)
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:386
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:232
static void build_abs_diff_mask(const uint8_t *prvp, int prv_linesize, const uint8_t *nxtp, int nxt_linesize, uint8_t *tbuffer, int tbuf_linesize, int width, int height)
#define FF_INLINK_IDX(link)
Find the index of a link.
Definition: internal.h:348
#define SLIDING_FRAME_WINDOW(prv, src, nxt)
#define FILTER(xm2, xm1, xp1, xp2)
static int query_formats(AVFilterContext *ctx)
uint8_t * cmask_data[4]
int
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
static int config_input(AVFilterLink *inlink)
static av_cold void fieldmatch_uninit(AVFilterContext *ctx)
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
static const uint64_t c2
Definition: murmur3.c:50
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
static void copy_fields(const FieldMatchContext *fm, AVFrame *dst, const AVFrame *src, int field)
static int64_t luma_abs_diff(const AVFrame *f1, const AVFrame *f2)
static av_always_inline int diff(const uint32_t a, const uint32_t b)
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:370
int mode
matching_mode
Definition: vf_fieldmatch.c:91
A list of supported formats for one end of a filter link.
Definition: formats.h:64
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
AVFrame * nxt2
sliding window of the optional second stream
Definition: vf_fieldmatch.c:80
static int calc_combed_score(const FieldMatchContext *fm, const AVFrame *src)
int vsub
chroma subsampling values
Definition: vf_fieldmatch.c:82
An instance of a filter.
Definition: avfilter.h:338
int height
Definition: frame.h:276
#define av_freep(p)
int(* config_props)(AVFilterLink *link)
Link configuration callback.
Definition: internal.h:129
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
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
comb_dbg
Definition: vf_fieldmatch.c:69
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
mode
Use these values in ebur128_init (or'ed).
Definition: ebur128.h:83
static int get_height(const FieldMatchContext *fm, const AVFrame *f, int plane)
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:391
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:652
#define FLAGS
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
static int ff_insert_inpad(AVFilterContext *f, unsigned index, AVFilterPad *p)
Insert a new input pad for the filter.
Definition: internal.h:277