FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/vf_fieldmatch.c
Date: 2022-12-09 07:38:14
Exec Total Coverage
Lines: 412 544 75.7%
Functions: 20 20 100.0%
Branches: 384 602 63.8%

Line Branch Exec Source
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
46 enum fieldmatch_parity {
47 FM_PARITY_AUTO = -1,
48 FM_PARITY_BOTTOM = 0,
49 FM_PARITY_TOP = 1,
50 };
51
52 enum matching_mode {
53 MODE_PC,
54 MODE_PC_N,
55 MODE_PC_U,
56 MODE_PC_N_UB,
57 MODE_PCN,
58 MODE_PCN_UB,
59 NB_MODE
60 };
61
62 enum comb_matching_mode {
63 COMBMATCH_NONE,
64 COMBMATCH_SC,
65 COMBMATCH_FULL,
66 NB_COMBMATCH
67 };
68
69 enum comb_dbg {
70 COMBDBG_NONE,
71 COMBDBG_PCN,
72 COMBDBG_PCNUB,
73 NB_COMBDBG
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[2], vsub[2]; ///< 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;
101 int blockx, blocky;
102 int combpel;
103
104 /* misc buffers */
105 uint8_t *map_data[4];
106 int map_linesize[4];
107 uint8_t *cmask_data[4];
108 int cmask_linesize[4];
109 int *c_array;
110 int tpitchy, tpitchuv;
111 uint8_t *tbuffer;
112 } FieldMatchContext;
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 1564 static int get_width(const FieldMatchContext *fm, const AVFrame *f, int plane, int input)
157 {
158
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1564 return plane ? AV_CEIL_RSHIFT(f->width, fm->hsub[input]) : f->width;
159 }
160
161 1564 static int get_height(const FieldMatchContext *fm, const AVFrame *f, int plane, int input)
162 {
163
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1564 return plane ? AV_CEIL_RSHIFT(f->height, fm->vsub[input]) : f->height;
164 }
165
166 135 static int64_t luma_abs_diff(const AVFrame *f1, const AVFrame *f2)
167 {
168 int x, y;
169 135 const uint8_t *srcp1 = f1->data[0];
170 135 const uint8_t *srcp2 = f2->data[0];
171 135 const int src1_linesize = f1->linesize[0];
172 135 const int src2_linesize = f2->linesize[0];
173 135 const int width = f1->width;
174 135 const int height = f1->height;
175 135 int64_t acc = 0;
176
177
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39015 for (y = 0; y < height; y++) {
178
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13724640 for (x = 0; x < width; x++)
179 13685760 acc += abs(srcp1[x] - srcp2[x]);
180 38880 srcp1 += src1_linesize;
181 38880 srcp2 += src2_linesize;
182 }
183 135 return acc;
184 }
185
186 610 static void fill_buf(uint8_t *data, int w, int h, int linesize, uint8_t v)
187 {
188 int y;
189
190
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157570 for (y = 0; y < h; y++) {
191 156960 memset(data, v, w);
192 156960 data += linesize;
193 }
194 610 }
195
196 220 static int calc_combed_score(const FieldMatchContext *fm, const AVFrame *src)
197 {
198 220 int x, y, plane, max_v = 0;
199 220 const int cthresh = fm->cthresh;
200 220 const int cthresh6 = cthresh * 6;
201
202
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440 for (plane = 0; plane < (fm->chroma ? 3 : 1); plane++) {
203 220 const uint8_t *srcp = src->data[plane];
204 220 const int src_linesize = src->linesize[plane];
205 220 const int width = get_width (fm, src, plane, INPUT_MAIN);
206 220 const int height = get_height(fm, src, plane, INPUT_MAIN);
207 220 uint8_t *cmkp = fm->cmask_data[plane];
208 220 const int cmk_linesize = fm->cmask_linesize[plane];
209
210
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220 if (cthresh < 0) {
211 fill_buf(cmkp, width, height, cmk_linesize, 0xff);
212 continue;
213 }
214 220 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
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77660 for (x = 0; x < width; x++) {
224 77440 const int s1 = abs(srcp[x] - srcp[x + src_linesize]);
225
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77440 if (s1 > cthresh && FILTER(2, 1, 1, 2))
226 40180 cmkp[x] = 0xff;
227 }
228 220 srcp += src_linesize;
229 220 cmkp += cmk_linesize;
230
231 /* second line */
232
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77660 for (x = 0; x < width; x++) {
233 77440 const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
234 77440 const int s2 = abs(srcp[x] - srcp[x + src_linesize]);
235
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77440 if (s1 > cthresh && s2 > cthresh && FILTER(2, -1, 1, 2))
236 37099 cmkp[x] = 0xff;
237 }
238 220 srcp += src_linesize;
239 220 cmkp += cmk_linesize;
240
241 /* all lines minus first two and last two */
242
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62700 for (y = 2; y < height-2; y++) {
243
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22055440 for (x = 0; x < width; x++) {
244 21992960 const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
245 21992960 const int s2 = abs(srcp[x] - srcp[x + src_linesize]);
246
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21992960 if (s1 > cthresh && s2 > cthresh && FILTER(-2, -1, 1, 2))
247 9768879 cmkp[x] = 0xff;
248 }
249 62480 srcp += src_linesize;
250 62480 cmkp += cmk_linesize;
251 }
252
253 /* before-last line */
254
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77660 for (x = 0; x < width; x++) {
255 77440 const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
256 77440 const int s2 = abs(srcp[x] - srcp[x + src_linesize]);
257
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77440 if (s1 > cthresh && s2 > cthresh && FILTER(-2, -1, 1, -2))
258 30781 cmkp[x] = 0xff;
259 }
260 220 srcp += src_linesize;
261 220 cmkp += cmk_linesize;
262
263 /* last line */
264
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77660 for (x = 0; x < width; x++) {
265 77440 const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
266
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77440 if (s1 > cthresh && FILTER(-2, -1, -1, -2))
267 35380 cmkp[x] = 0xff;
268 }
269 }
270
271
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220 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[INPUT_MAIN]);
276 const int height = AV_CEIL_RSHIFT(src->height, fm->vsub[INPUT_MAIN]);
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 {
305 220 const int blockx = fm->blockx;
306 220 const int blocky = fm->blocky;
307 220 const int xhalf = blockx/2;
308 220 const int yhalf = blocky/2;
309 220 const int cmk_linesize = fm->cmask_linesize[0];
310 220 const uint8_t *cmkp = fm->cmask_data[0] + cmk_linesize;
311 220 const int width = src->width;
312 220 const int height = src->height;
313 220 const int xblocks = ((width+xhalf)/blockx) + 1;
314 220 const int xblocks4 = xblocks<<2;
315 220 const int yblocks = ((height+yhalf)/blocky) + 1;
316 220 int *c_array = fm->c_array;
317 220 const int arraysize = (xblocks*yblocks)<<2;
318 220 int heighta = (height/(blocky/2))*(blocky/2);
319 220 const int widtha = (width /(blockx/2))*(blockx/2);
320
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220 if (heighta == height)
321 220 heighta = height - yhalf;
322 220 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
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543840 VERTICAL_HALF(1, yhalf);
347
348
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7700 for (y = yhalf; y < heighta; y += yhalf) {
349 7480 const int temp1 = (y / blocky) * xblocks4;
350 7480 const int temp2 = ((y + yhalf) / blocky) * xblocks4;
351
352
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336600 for (x = 0; x < widtha; x += xhalf) {
353 329120 const uint8_t *cmkp_tmp = cmkp + x;
354 329120 int u, v, sum = 0;
355
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2962080 for (u = 0; u < yhalf; u++) {
356
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23696640 for (v = 0; v < xhalf; v++)
357
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21063680 if (cmkp_tmp[v - cmk_linesize] == 0xff &&
358
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9365808 cmkp_tmp[v ] == 0xff &&
359
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8453820 cmkp_tmp[v + cmk_linesize] == 0xff)
360 7819534 sum++;
361 2632960 cmkp_tmp += cmk_linesize;
362 }
363
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329120 if (sum)
364 200837 C_ARRAY_ADD(sum);
365 }
366
367
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7480 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 7480 cmkp += cmk_linesize * yhalf;
382 }
383
384
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543840 VERTICAL_HALF(heighta, height - 1);
385
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384780 for (x = 0; x < arraysize; x++)
387
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384560 if (c_array[x] > max_v)
388 971 max_v = c_array[x];
389 }
390 220 return max_v;
391 }
392
393 // the secret is that tbuffer is an interlaced, offset subset of all the lines
394 390 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
401 390 prvp -= prv_linesize;
402 390 nxtp -= nxt_linesize;
403
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47190 for (y = 0; y < height; y++) {
404
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12072528 for (x = 0; x < width; x++)
405 12025728 tbuffer[x] = FFABS(prvp[x] - nxtp[x]);
406 46800 prvp += prv_linesize;
407 46800 nxtp += nxt_linesize;
408 46800 tbuffer += tbuf_linesize;
409 }
410 390 }
411
412 /**
413 * Build a map over which pixels differ a lot/a little
414 */
415 390 static void build_diff_map(FieldMatchContext *fm,
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
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390 int tpitch = plane ? fm->tpitchuv : fm->tpitchy;
423 390 const uint8_t *dp = fm->tbuffer + tpitch;
424
425 390 build_abs_diff_mask(prvp, prv_linesize, nxtp, nxt_linesize,
426 fm->tbuffer, tpitch, width, height>>1);
427
428
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46410 for (y = 2; y < height - 2; y += 2) {
429
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11796668 for (x = 1; x < width - 1; x++) {
430 11750648 diff = dp[x];
431
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11750648 if (diff > 3) {
432
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17981804 for (count = 0, u = x-1; u < x+2 && count < 2; u++) {
433 9251794 count += dp[u-tpitch] > 3;
434 9251794 count += dp[u ] > 3;
435 9251794 count += dp[u+tpitch] > 3;
436 }
437
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8730010 if (count > 1) {
438 8722083 dstp[x] = 1;
439
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8722083 if (diff > 19) {
440 5460375 int upper = 0, lower = 0;
441
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18209862 for (count = 0, u = x-1; u < x+2 && count < 6; u++) {
442
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12749487 if (dp[u-tpitch] > 19) { count++; upper = 1; }
443
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12749487 if (dp[u ] > 19) count++;
444
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12749487 if (dp[u+tpitch] > 19) { count++; lower = 1; }
445 }
446
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5460375 if (count > 3) {
447
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5022758 if (upper && lower) {
448 4554450 dstp[x] |= 1<<1;
449 } else {
450 468308 int upper2 = 0, lower2 = 0;
451
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4659994 for (u = FFMAX(x-4,0); u < FFMIN(x+5,width); u++) {
452
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4191686 if (y != 2 && dp[u-2*tpitch] > 19) upper2 = 1;
453
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4191686 if ( dp[u- tpitch] > 19) upper = 1;
454
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4191686 if ( dp[u+ tpitch] > 19) lower = 1;
455
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4191686 if (y != height-4 && dp[u+2*tpitch] > 19) lower2 = 1;
456 }
457
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468308 if ((upper && (lower || upper2)) ||
458
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57479 (lower && (upper || lower2)))
459 455472 dstp[x] |= 1<<1;
460
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12836 else if (count > 5)
461 9145 dstp[x] |= 1<<2;
462 }
463 }
464 }
465 }
466 }
467 }
468 46020 dp += tpitch;
469 46020 dstp += dst_linesize;
470 }
471 390 }
472
473 enum { mP, mC, mN, mB, mU };
474
475 780 static int get_field_base(int match, int field)
476 {
477
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780 return match < 3 ? 2 - field : 1 + field;
478 }
479
480 780 static AVFrame *select_frame(FieldMatchContext *fm, int match)
481 {
482
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780 if (match == mP || match == mB) return fm->prv;
483
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390 else if (match == mN || match == mU) return fm->nxt;
484 390 else /* match == mC */ return fm->src;
485 }
486
487 130 static int compare_fields(FieldMatchContext *fm, int match1, int match2, int field)
488 {
489 int plane, ret;
490 130 uint64_t accumPc = 0, accumPm = 0, accumPml = 0;
491 130 uint64_t accumNc = 0, accumNm = 0, accumNml = 0;
492 int norm1, norm2, mtn1, mtn2;
493 float c1, c2, mr;
494 130 const AVFrame *src = fm->src;
495
496
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520 for (plane = 0; plane < (fm->mchroma ? 3 : 1); plane++) {
497 int x, y, temp1, temp2, fbase;
498 const AVFrame *prev, *next;
499 390 uint8_t *mapp = fm->map_data[plane];
500 390 int map_linesize = fm->map_linesize[plane];
501 390 const uint8_t *srcp = src->data[plane];
502 390 const int src_linesize = src->linesize[plane];
503 390 const int srcf_linesize = src_linesize << 1;
504 int prv_linesize, nxt_linesize;
505 int prvf_linesize, nxtf_linesize;
506 390 const int width = get_width (fm, src, plane, INPUT_MAIN);
507 390 const int height = get_height(fm, src, plane, INPUT_MAIN);
508
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390 const int y0a = fm->y0 >> (plane ? fm->vsub[INPUT_MAIN] : 0);
509
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390 const int y1a = fm->y1 >> (plane ? fm->vsub[INPUT_MAIN] : 0);
510
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390 const int startx = (plane == 0 ? 8 : 8 >> fm->hsub[INPUT_MAIN]);
511 390 const int stopx = width - startx;
512 const uint8_t *srcpf, *srcf, *srcnf;
513 const uint8_t *prvpf, *prvnf, *nxtpf, *nxtnf;
514
515 390 fill_buf(mapp, width, height, map_linesize, 0);
516
517 /* match1 */
518 390 fbase = get_field_base(match1, field);
519 390 srcf = srcp + (fbase + 1) * src_linesize;
520 390 srcpf = srcf - srcf_linesize;
521 390 srcnf = srcf + srcf_linesize;
522 390 mapp = mapp + fbase * map_linesize;
523 390 prev = select_frame(fm, match1);
524 390 prv_linesize = prev->linesize[plane];
525 390 prvf_linesize = prv_linesize << 1;
526 390 prvpf = prev->data[plane] + fbase * prv_linesize; // previous frame, previous field
527 390 prvnf = prvpf + prvf_linesize; // previous frame, next field
528
529 /* match2 */
530 390 fbase = get_field_base(match2, field);
531 390 next = select_frame(fm, match2);
532 390 nxt_linesize = next->linesize[plane];
533 390 nxtf_linesize = nxt_linesize << 1;
534 390 nxtpf = next->data[plane] + fbase * nxt_linesize; // next frame, previous field
535 390 nxtnf = nxtpf + nxtf_linesize; // next frame, next field
536
537 390 map_linesize <<= 1;
538
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390 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
542 390 build_diff_map(fm, prvnf, prvf_linesize, nxtnf, nxtf_linesize,
543 mapp + map_linesize, map_linesize, height, width, plane);
544
545
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46410 for (y = 2; y < height - 2; y += 2) {
546
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46020 if (y0a == y1a || y < y0a || y > y1a) {
547
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11350404 for (x = startx; x < stopx; x++) {
548
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11304384 if (mapp[x] > 0 || mapp[x + map_linesize] > 0) {
549 9127496 temp1 = srcpf[x] + (srcf[x] << 2) + srcnf[x]; // [1 4 1]
550
551 9127496 temp2 = abs(3 * (prvpf[x] + prvnf[x]) - temp1);
552
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9127496 if (temp2 > 23 && ((mapp[x]&1) || (mapp[x + map_linesize]&1)))
553 3925691 accumPc += temp2;
554
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9127496 if (temp2 > 42) {
555
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3357735 if ((mapp[x]&2) || (mapp[x + map_linesize]&2))
556 2693152 accumPm += temp2;
557
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3357735 if ((mapp[x]&4) || (mapp[x + map_linesize]&4))
558 1527 accumPml += temp2;
559 }
560
561 9127496 temp2 = abs(3 * (nxtpf[x] + nxtnf[x]) - temp1);
562
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9127496 if (temp2 > 23 && ((mapp[x]&1) || (mapp[x + map_linesize]&1)))
563 6710599 accumNc += temp2;
564
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9127496 if (temp2 > 42) {
565
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5902128 if ((mapp[x]&2) || (mapp[x + map_linesize]&2))
566 3659151 accumNm += temp2;
567
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5902128 if ((mapp[x]&4) || (mapp[x + map_linesize]&4))
568 10627 accumNml += temp2;
569 }
570 }
571 }
572 }
573 46020 prvpf += prvf_linesize;
574 46020 prvnf += prvf_linesize;
575 46020 srcpf += srcf_linesize;
576 46020 srcf += srcf_linesize;
577 46020 srcnf += srcf_linesize;
578 46020 nxtpf += nxtf_linesize;
579 46020 nxtnf += nxtf_linesize;
580 46020 mapp += map_linesize;
581 }
582 }
583
584
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130 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
590 130 norm1 = (int)((accumPc / 6.0f) + 0.5f);
591 130 norm2 = (int)((accumNc / 6.0f) + 0.5f);
592 130 mtn1 = (int)((accumPm / 6.0f) + 0.5f);
593 130 mtn2 = (int)((accumNm / 6.0f) + 0.5f);
594
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130 c1 = ((float)FFMAX(norm1,norm2)) / ((float)FFMAX(FFMIN(norm1,norm2),1));
595
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130 c2 = ((float)FFMAX(mtn1, mtn2)) / ((float)FFMAX(FFMIN(mtn1, mtn2), 1));
596
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130 mr = ((float)FFMAX(mtn1, mtn2)) / ((float)FFMAX(FFMAX(norm1,norm2),1));
597
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130 if (((mtn1 >= 500 || mtn2 >= 500) && (mtn1*2 < mtn2*1 || mtn2*2 < mtn1*1)) ||
598
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22 ((mtn1 >= 1000 || mtn2 >= 1000) && (mtn1*3 < mtn2*2 || mtn2*3 < mtn1*2)) ||
599
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17 ((mtn1 >= 2000 || mtn2 >= 2000) && (mtn1*5 < mtn2*4 || mtn2*5 < mtn1*4)) ||
600
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14 ((mtn1 >= 4000 || mtn2 >= 4000) && c2 > c1))
601
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119 ret = mtn1 > mtn2 ? match2 : match1;
602
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11 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
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11 ret = norm1 > norm2 ? match2 : match1;
606 130 return ret;
607 }
608
609 318 static void copy_fields(const FieldMatchContext *fm, AVFrame *dst,
610 const AVFrame *src, int field, int input)
611 {
612 int plane;
613
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1272 for (plane = 0; plane < 4 && src->data[plane] && src->linesize[plane]; plane++) {
614 954 const int plane_h = get_height(fm, src, plane, input);
615
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954 const int nb_copy_fields = (plane_h >> 1) + (field ? 0 : (plane_h & 1));
616 954 av_image_copy_plane(dst->data[plane] + field*dst->linesize[plane], dst->linesize[plane] << 1,
617 954 src->data[plane] + field*src->linesize[plane], src->linesize[plane] << 1,
618 954 get_width(fm, src, plane, input) * fm->bpc, nb_copy_fields);
619 }
620 318 }
621
622 159 static AVFrame *create_weave_frame(AVFilterContext *ctx, int match, int field,
623 const AVFrame *prv, AVFrame *src, const AVFrame *nxt, int input)
624 {
625 AVFrame *dst;
626 159 FieldMatchContext *fm = ctx->priv;
627
628
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159 if (match == mC) {
629 dst = av_frame_clone(src);
630 } else {
631
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159 AVFilterLink *link = input == INPUT_CLEANSRC ? ctx->outputs[0] : ctx->inputs[INPUT_MAIN];
632
633 159 dst = ff_get_video_buffer(link, link->w, link->h);
634
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159 if (!dst)
635 return NULL;
636 159 av_frame_copy_props(dst, src);
637
638
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159 switch (match) {
639 49 case mP: copy_fields(fm, dst, src, 1-field, input); copy_fields(fm, dst, prv, field, input); break;
640 110 case mN: copy_fields(fm, dst, src, 1-field, input); copy_fields(fm, dst, nxt, field, input); break;
641 case mB: copy_fields(fm, dst, src, field, input); copy_fields(fm, dst, prv, 1-field, input); break;
642 case mU: copy_fields(fm, dst, src, field, input); copy_fields(fm, dst, nxt, 1-field, input); break;
643 default: av_assert0(0);
644 }
645 }
646 159 return dst;
647 }
648
649 110 static int checkmm(AVFilterContext *ctx, int *combs, int m1, int m2,
650 AVFrame **gen_frames, int field)
651 {
652 110 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 INPUT_MAIN); \
660 combs[mid] = calc_combed_score(fm, gen_frames[mid]); \
661 } \
662 } while (0)
663
664
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110 LOAD_COMB(m1);
665
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110 LOAD_COMB(m2);
666
667
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110 if ((combs[m2] * 3 < combs[m1] || (combs[m2] * 2 < combs[m1] && combs[m1] > fm->combpel)) &&
668 abs(combs[m2] - combs[m1]) >= 30 && combs[m2] < fm->combpel)
669 return m2;
670 else
671 110 return m1;
672 }
673
674 static const int fxo0m[] = { mP, mC, mN, mB, mU };
675 static const int fxo1m[] = { mN, mC, mP, mU, mB };
676
677 135 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
678 {
679 135 AVFilterContext *ctx = inlink->dst;
680 135 AVFilterLink *outlink = ctx->outputs[0];
681 135 FieldMatchContext *fm = ctx->priv;
682 135 int combs[] = { -1, -1, -1, -1, -1 };
683 135 int order, field, i, match, interlaced_frame, sc = 0, ret = 0;
684 const int *fxo;
685 135 AVFrame *gen_frames[] = { NULL, NULL, NULL, NULL, NULL };
686 135 AVFrame *dst = NULL;
687
688 /* update frames queue(s) */
689 #define SLIDING_FRAME_WINDOW(prv, src, nxt) do { \
690 if (prv != src) /* 2nd loop exception (1st has prv==src and we don't want to loose src) */ \
691 av_frame_free(&prv); \
692 prv = src; \
693 src = nxt; \
694 if (in) \
695 nxt = in; \
696 if (!prv) \
697 prv = src; \
698 if (!prv) /* received only one frame at that point */ \
699 return 0; \
700 av_assert0(prv && src && nxt); \
701 } while (0)
702
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135 if (FF_INLINK_IDX(inlink) == INPUT_MAIN) {
703
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135 av_assert0(fm->got_frame[INPUT_MAIN] == 0);
704
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135 SLIDING_FRAME_WINDOW(fm->prv, fm->src, fm->nxt);
705 130 fm->got_frame[INPUT_MAIN] = 1;
706 } else {
707 av_assert0(fm->got_frame[INPUT_CLEANSRC] == 0);
708 SLIDING_FRAME_WINDOW(fm->prv2, fm->src2, fm->nxt2);
709 fm->got_frame[INPUT_CLEANSRC] = 1;
710 }
711
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130 if (!fm->got_frame[INPUT_MAIN] || (fm->ppsrc && !fm->got_frame[INPUT_CLEANSRC]))
712 return 0;
713 130 fm->got_frame[INPUT_MAIN] = fm->got_frame[INPUT_CLEANSRC] = 0;
714 130 in = fm->src;
715
716 /* parity */
717
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130 order = fm->order != FM_PARITY_AUTO ? fm->order : (in->interlaced_frame ? in->top_field_first : 1);
718
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130 field = fm->field != FM_PARITY_AUTO ? fm->field : order;
719
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130 av_assert0(order == 0 || order == 1 || field == 0 || field == 1);
720
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130 fxo = field ^ order ? fxo1m : fxo0m;
721
722 /* debug mode: we generate all the fields combinations and their associated
723 * combed score. XXX: inject as frame metadata? */
724
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130 if (fm->combdbg) {
725 for (i = 0; i < FF_ARRAY_ELEMS(combs); i++) {
726 if (i > mN && fm->combdbg == COMBDBG_PCN)
727 break;
728 gen_frames[i] = create_weave_frame(ctx, i, field, fm->prv, fm->src, fm->nxt, INPUT_MAIN);
729 if (!gen_frames[i]) {
730 ret = AVERROR(ENOMEM);
731 goto fail;
732 }
733 combs[i] = calc_combed_score(fm, gen_frames[i]);
734 }
735 av_log(ctx, AV_LOG_INFO, "COMBS: %3d %3d %3d %3d %3d\n",
736 combs[0], combs[1], combs[2], combs[3], combs[4]);
737 } else {
738 130 gen_frames[mC] = av_frame_clone(fm->src);
739
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130 if (!gen_frames[mC]) {
740 ret = AVERROR(ENOMEM);
741 goto fail;
742 }
743 }
744
745 /* p/c selection and optional 3-way p/c/n matches */
746 130 match = compare_fields(fm, fxo[mC], fxo[mP], field);
747
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130 if (fm->mode == MODE_PCN || fm->mode == MODE_PCN_UB)
748 match = compare_fields(fm, match, fxo[mN], field);
749
750 /* scene change check */
751
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130 if (fm->combmatch == COMBMATCH_SC) {
752
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130 if (fm->lastn == outlink->frame_count_in - 1) {
753
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60 if (fm->lastscdiff > fm->scthresh)
754 45 sc = 1;
755
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70 } else if (luma_abs_diff(fm->prv, fm->src) > fm->scthresh) {
756 20 sc = 1;
757 }
758
759
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130 if (!sc) {
760 65 fm->lastn = outlink->frame_count_in;
761 65 fm->lastscdiff = luma_abs_diff(fm->src, fm->nxt);
762 65 sc = fm->lastscdiff > fm->scthresh;
763 }
764 }
765
766
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130 if (fm->combmatch == COMBMATCH_FULL || (fm->combmatch == COMBMATCH_SC && sc)) {
767
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110 switch (fm->mode) {
768 /* 2-way p/c matches */
769 case MODE_PC:
770 match = checkmm(ctx, combs, match, match == fxo[mP] ? fxo[mC] : fxo[mP], gen_frames, field);
771 break;
772 110 case MODE_PC_N:
773 110 match = checkmm(ctx, combs, match, fxo[mN], gen_frames, field);
774 110 break;
775 case MODE_PC_U:
776 match = checkmm(ctx, combs, match, fxo[mU], gen_frames, field);
777 break;
778 case MODE_PC_N_UB:
779 match = checkmm(ctx, combs, match, fxo[mN], gen_frames, field);
780 match = checkmm(ctx, combs, match, fxo[mU], gen_frames, field);
781 match = checkmm(ctx, combs, match, fxo[mB], gen_frames, field);
782 break;
783 /* 3-way p/c/n matches */
784 case MODE_PCN:
785 match = checkmm(ctx, combs, match, match == fxo[mP] ? fxo[mC] : fxo[mP], gen_frames, field);
786 break;
787 case MODE_PCN_UB:
788 match = checkmm(ctx, combs, match, fxo[mU], gen_frames, field);
789 match = checkmm(ctx, combs, match, fxo[mB], gen_frames, field);
790 break;
791 default:
792 av_assert0(0);
793 }
794 }
795
796 /* keep fields as-is if not matched properly */
797 130 interlaced_frame = combs[match] >= fm->combpel;
798
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130 if (interlaced_frame && fm->combmatch == COMBMATCH_FULL) {
799 match = mC;
800 }
801
802 /* get output frame and drop the others */
803
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130 if (fm->ppsrc) {
804 /* field matching was based on a filtered/post-processed input, we now
805 * pick the untouched fields from the clean source */
806 dst = create_weave_frame(ctx, match, field, fm->prv2, fm->src2, fm->nxt2, INPUT_CLEANSRC);
807 } else {
808
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130 if (!gen_frames[match]) { // XXX: is that possible?
809 dst = create_weave_frame(ctx, match, field, fm->prv, fm->src, fm->nxt, INPUT_MAIN);
810 } else {
811 130 dst = gen_frames[match];
812 130 gen_frames[match] = NULL;
813 }
814 }
815
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130 if (!dst) {
816 ret = AVERROR(ENOMEM);
817 goto fail;
818 }
819
820 /* mark the frame we are unable to match properly as interlaced so a proper
821 * de-interlacer can take the relay */
822 130 dst->interlaced_frame = interlaced_frame;
823
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130 if (dst->interlaced_frame) {
824 110 av_log(ctx, AV_LOG_WARNING, "Frame #%"PRId64" at %s is still interlaced\n",
825 110 outlink->frame_count_in, av_ts2timestr(in->pts, &inlink->time_base));
826 110 dst->top_field_first = field;
827 }
828
829 130 av_log(ctx, AV_LOG_DEBUG, "SC:%d | COMBS: %3d %3d %3d %3d %3d (combpel=%d)"
830 " match=%d combed=%s\n", sc, combs[0], combs[1], combs[2], combs[3], combs[4],
831
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130 fm->combpel, match, dst->interlaced_frame ? "YES" : "NO");
832
833 130 fail:
834
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780 for (i = 0; i < FF_ARRAY_ELEMS(gen_frames); i++)
835 650 av_frame_free(&gen_frames[i]);
836
837
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130 if (ret >= 0)
838 130 return ff_filter_frame(outlink, dst);
839 return ret;
840 }
841
842 240 static int activate(AVFilterContext *ctx)
843 {
844 240 FieldMatchContext *fm = ctx->priv;
845 240 AVFrame *frame = NULL;
846 240 int ret = 0, status;
847 int64_t pts;
848
849
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245 FF_FILTER_FORWARD_STATUS_BACK_ALL(ctx->outputs[0], ctx);
850
851
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470 if ((fm->got_frame[INPUT_MAIN] == 0) &&
852 235 (ret = ff_inlink_consume_frame(ctx->inputs[INPUT_MAIN], &frame)) > 0) {
853 130 ret = filter_frame(ctx->inputs[INPUT_MAIN], frame);
854
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130 if (ret < 0)
855 return ret;
856 }
857
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235 if (ret < 0)
858 return ret;
859
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235 if (fm->ppsrc &&
860 (fm->got_frame[INPUT_CLEANSRC] == 0) &&
861 (ret = ff_inlink_consume_frame(ctx->inputs[INPUT_CLEANSRC], &frame)) > 0) {
862 ret = filter_frame(ctx->inputs[INPUT_CLEANSRC], frame);
863 if (ret < 0)
864 return ret;
865 }
866
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235 if (ret < 0) {
867 return ret;
868
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235 } else if (ff_inlink_acknowledge_status(ctx->inputs[INPUT_MAIN], &status, &pts)) {
869
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5 if (status == AVERROR_EOF) { // flushing
870 5 fm->eof |= 1 << INPUT_MAIN;
871 5 ret = filter_frame(ctx->inputs[INPUT_MAIN], NULL);
872 }
873 5 ff_outlink_set_status(ctx->outputs[0], status, pts);
874 5 return ret;
875
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230 } else if (fm->ppsrc && ff_inlink_acknowledge_status(ctx->inputs[INPUT_CLEANSRC], &status, &pts)) {
876 if (status == AVERROR_EOF) { // flushing
877 fm->eof |= 1 << INPUT_CLEANSRC;
878 ret = filter_frame(ctx->inputs[INPUT_CLEANSRC], NULL);
879 }
880 ff_outlink_set_status(ctx->outputs[0], status, pts);
881 return ret;
882 } else {
883
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230 if (ff_outlink_frame_wanted(ctx->outputs[0])) {
884
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100 if (fm->got_frame[INPUT_MAIN] == 0)
885 100 ff_inlink_request_frame(ctx->inputs[INPUT_MAIN]);
886
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100 if (fm->ppsrc && (fm->got_frame[INPUT_CLEANSRC] == 0))
887 ff_inlink_request_frame(ctx->inputs[INPUT_CLEANSRC]);
888 }
889 230 return 0;
890 }
891 }
892
893 6 static int query_formats(AVFilterContext *ctx)
894 {
895 6 FieldMatchContext *fm = ctx->priv;
896
897 static const enum AVPixelFormat pix_fmts[] = {
898 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
899 AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
900 AV_PIX_FMT_NONE
901 };
902 static const enum AVPixelFormat unproc_pix_fmts[] = {
903 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
904 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
905 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
906 AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
907 AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
908 AV_PIX_FMT_YUVJ411P,
909 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
910 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
911 AV_PIX_FMT_YUV440P10,
912 AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
913 AV_PIX_FMT_YUV440P12,
914 AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
915 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
916 AV_PIX_FMT_NONE
917 };
918 int ret;
919
920 6 AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
921
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6 if (!fmts_list)
922 return AVERROR(ENOMEM);
923
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6 if (!fm->ppsrc) {
924 6 return ff_set_common_formats(ctx, fmts_list);
925 }
926
927 if ((ret = ff_formats_ref(fmts_list, &ctx->inputs[INPUT_MAIN]->outcfg.formats)) < 0)
928 return ret;
929 fmts_list = ff_make_format_list(unproc_pix_fmts);
930 if (!fmts_list)
931 return AVERROR(ENOMEM);
932 if ((ret = ff_formats_ref(fmts_list, &ctx->outputs[0]->incfg.formats)) < 0)
933 return ret;
934 if ((ret = ff_formats_ref(fmts_list, &ctx->inputs[INPUT_CLEANSRC]->outcfg.formats)) < 0)
935 return ret;
936 return 0;
937 }
938
939 5 static int config_input(AVFilterLink *inlink)
940 {
941 int ret;
942 5 AVFilterContext *ctx = inlink->dst;
943 5 FieldMatchContext *fm = ctx->priv;
944 5 const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
945 5 const int w = inlink->w;
946 5 const int h = inlink->h;
947
948 5 fm->scthresh = (int64_t)((w * h * 255.0 * fm->scthresh_flt) / 100.0);
949
950
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10 if ((ret = av_image_alloc(fm->map_data, fm->map_linesize, w, h, inlink->format, 32)) < 0 ||
951 5 (ret = av_image_alloc(fm->cmask_data, fm->cmask_linesize, w, h, inlink->format, 32)) < 0)
952 return ret;
953
954 5 fm->hsub[INPUT_MAIN] = pix_desc->log2_chroma_w;
955 5 fm->vsub[INPUT_MAIN] = pix_desc->log2_chroma_h;
956
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5 if (fm->ppsrc) {
957 pix_desc = av_pix_fmt_desc_get(ctx->inputs[INPUT_CLEANSRC]->format);
958 fm->hsub[INPUT_CLEANSRC] = pix_desc->log2_chroma_w;
959 fm->vsub[INPUT_CLEANSRC] = pix_desc->log2_chroma_h;
960 }
961
962 5 fm->tpitchy = FFALIGN(w, 16);
963 5 fm->tpitchuv = FFALIGN(w >> 1, 16);
964
965 5 fm->tbuffer = av_calloc((h/2 + 4) * fm->tpitchy, sizeof(*fm->tbuffer));
966 10 fm->c_array = av_malloc_array((((w + fm->blockx/2)/fm->blockx)+1) *
967 5 (((h + fm->blocky/2)/fm->blocky)+1),
968 4 * sizeof(*fm->c_array));
969
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5 if (!fm->tbuffer || !fm->c_array)
970 return AVERROR(ENOMEM);
971
972 5 return 0;
973 }
974
975 6 static av_cold int fieldmatch_init(AVFilterContext *ctx)
976 {
977 6 const FieldMatchContext *fm = ctx->priv;
978 6 AVFilterPad pad = {
979 .name = "main",
980 .type = AVMEDIA_TYPE_VIDEO,
981 .config_props = config_input,
982 };
983 int ret;
984
985
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6 if ((ret = ff_append_inpad(ctx, &pad)) < 0)
986 return ret;
987
988
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6 if (fm->ppsrc) {
989 pad.name = "clean_src";
990 pad.config_props = NULL;
991 if ((ret = ff_append_inpad(ctx, &pad)) < 0)
992 return ret;
993 }
994
995
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6 if ((fm->blockx & (fm->blockx - 1)) ||
996
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6 (fm->blocky & (fm->blocky - 1))) {
997 av_log(ctx, AV_LOG_ERROR, "blockx and blocky settings must be power of two\n");
998 return AVERROR(EINVAL);
999 }
1000
1001
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6 if (fm->combpel > fm->blockx * fm->blocky) {
1002 av_log(ctx, AV_LOG_ERROR, "Combed pixel should not be larger than blockx x blocky\n");
1003 return AVERROR(EINVAL);
1004 }
1005
1006 6 return 0;
1007 }
1008
1009 6 static av_cold void fieldmatch_uninit(AVFilterContext *ctx)
1010 {
1011 6 FieldMatchContext *fm = ctx->priv;
1012
1013
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6 if (fm->prv != fm->src)
1014 5 av_frame_free(&fm->prv);
1015
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6 if (fm->nxt != fm->src)
1016 av_frame_free(&fm->nxt);
1017
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6 if (fm->prv2 != fm->src2)
1018 av_frame_free(&fm->prv2);
1019
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6 if (fm->nxt2 != fm->src2)
1020 av_frame_free(&fm->nxt2);
1021 6 av_frame_free(&fm->src);
1022 6 av_frame_free(&fm->src2);
1023 6 av_freep(&fm->map_data[0]);
1024 6 av_freep(&fm->cmask_data[0]);
1025 6 av_freep(&fm->tbuffer);
1026 6 av_freep(&fm->c_array);
1027 6 }
1028
1029 5 static int config_output(AVFilterLink *outlink)
1030 {
1031 5 AVFilterContext *ctx = outlink->src;
1032 5 FieldMatchContext *fm = ctx->priv;
1033 5 const AVFilterLink *inlink =
1034
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5 ctx->inputs[fm->ppsrc ? INPUT_CLEANSRC : INPUT_MAIN];
1035 5 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
1036
1037 5 fm->bpc = (desc->comp[0].depth + 7) / 8;
1038 5 outlink->time_base = inlink->time_base;
1039 5 outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
1040 5 outlink->frame_rate = inlink->frame_rate;
1041 5 outlink->w = inlink->w;
1042 5 outlink->h = inlink->h;
1043 5 return 0;
1044 }
1045
1046 static const AVFilterPad fieldmatch_outputs[] = {
1047 {
1048 .name = "default",
1049 .type = AVMEDIA_TYPE_VIDEO,
1050 .config_props = config_output,
1051 },
1052 };
1053
1054 const AVFilter ff_vf_fieldmatch = {
1055 .name = "fieldmatch",
1056 .description = NULL_IF_CONFIG_SMALL("Field matching for inverse telecine."),
1057 .priv_size = sizeof(FieldMatchContext),
1058 .init = fieldmatch_init,
1059 .activate = activate,
1060 .uninit = fieldmatch_uninit,
1061 .inputs = NULL,
1062 FILTER_OUTPUTS(fieldmatch_outputs),
1063 FILTER_QUERY_FUNC(query_formats),
1064 .priv_class = &fieldmatch_class,
1065 .flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
1066 };
1067