FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/vf_fieldmatch.c
Date: 2024-11-20 23:03:26
Exec Total Coverage
Lines: 416 553 75.2%
Functions: 20 20 100.0%
Branches: 382 608 62.8%
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/mem.h"
38 #include "libavutil/opt.h"
39 #include "libavutil/timestamp.h"
40 #include "avfilter.h"
41 #include "filters.h"
42 #include "formats.h"
43 #include "video.h"
44
45 #define INPUT_MAIN 0
46 #define INPUT_CLEANSRC 1
47
48 enum fieldmatch_parity {
49 FM_PARITY_AUTO = -1,
50 FM_PARITY_BOTTOM = 0,
51 FM_PARITY_TOP = 1,
52 };
53
54 enum matching_mode {
55 MODE_PC,
56 MODE_PC_N,
57 MODE_PC_U,
58 MODE_PC_N_UB,
59 MODE_PCN,
60 MODE_PCN_UB,
61 NB_MODE
62 };
63
64 enum comb_matching_mode {
65 COMBMATCH_NONE,
66 COMBMATCH_SC,
67 COMBMATCH_FULL,
68 NB_COMBMATCH
69 };
70
71 enum comb_dbg {
72 COMBDBG_NONE,
73 COMBDBG_PCN,
74 COMBDBG_PCNUB,
75 NB_COMBDBG
76 };
77
78 typedef struct FieldMatchContext {
79 const AVClass *class;
80
81 AVFrame *prv, *src, *nxt; ///< main sliding window of 3 frames
82 AVFrame *prv2, *src2, *nxt2; ///< sliding window of the optional second stream
83 int got_frame[2]; ///< frame request flag for each input stream
84 int hsub[2], vsub[2]; ///< chroma subsampling values
85 int bpc; ///< bytes per component
86 uint32_t eof; ///< bitmask for end of stream
87 int64_t lastscdiff;
88 int64_t lastn;
89
90 /* options */
91 int order;
92 int ppsrc;
93 int mode; ///< matching_mode
94 int field;
95 int mchroma;
96 int y0, y1;
97 int64_t scthresh;
98 double scthresh_flt;
99 int combmatch; ///< comb_matching_mode
100 int combdbg;
101 int cthresh;
102 int chroma;
103 int blockx, blocky;
104 int combpel;
105
106 /* misc buffers */
107 uint8_t *map_data[4];
108 int map_linesize[4];
109 uint8_t *cmask_data[4];
110 int cmask_linesize[4];
111 int *c_array;
112 int tpitchy, tpitchuv;
113 uint8_t *tbuffer;
114 } FieldMatchContext;
115
116 #define OFFSET(x) offsetof(FieldMatchContext, x)
117 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
118
119 static const AVOption fieldmatch_options[] = {
120 { "order", "specify the assumed field order", OFFSET(order), AV_OPT_TYPE_INT, {.i64=FM_PARITY_AUTO}, -1, 1, FLAGS, .unit = "order" },
121 { "auto", "auto detect parity", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_AUTO}, INT_MIN, INT_MAX, FLAGS, .unit = "order" },
122 { "bff", "assume bottom field first", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_BOTTOM}, INT_MIN, INT_MAX, FLAGS, .unit = "order" },
123 { "tff", "assume top field first", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_TOP}, INT_MIN, INT_MAX, FLAGS, .unit = "order" },
124 { "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, .unit = "mode" },
125 { "pc", "2-way match (p/c)", 0, AV_OPT_TYPE_CONST, {.i64=MODE_PC}, INT_MIN, INT_MAX, FLAGS, .unit = "mode" },
126 { "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, .unit = "mode" },
127 { "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, .unit = "mode" },
128 { "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, .unit = "mode" },
129 { "pcn", "3-way match (p/c/n)", 0, AV_OPT_TYPE_CONST, {.i64=MODE_PCN}, INT_MIN, INT_MAX, FLAGS, .unit = "mode" },
130 { "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, .unit = "mode" },
131 { "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 },
132 { "field", "set the field to match from", OFFSET(field), AV_OPT_TYPE_INT, {.i64=FM_PARITY_AUTO}, -1, 1, FLAGS, .unit = "field" },
133 { "auto", "automatic (same value as 'order')", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_AUTO}, INT_MIN, INT_MAX, FLAGS, .unit = "field" },
134 { "bottom", "bottom field", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_BOTTOM}, INT_MIN, INT_MAX, FLAGS, .unit = "field" },
135 { "top", "top field", 0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_TOP}, INT_MIN, INT_MAX, FLAGS, .unit = "field" },
136 { "mchroma", "set whether or not chroma is included during the match comparisons", OFFSET(mchroma), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
137 { "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 },
138 { "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 },
139 { "scthresh", "set scene change detection threshold", OFFSET(scthresh_flt), AV_OPT_TYPE_DOUBLE, {.dbl=12}, 0, 100, FLAGS },
140 { "combmatch", "set combmatching mode", OFFSET(combmatch), AV_OPT_TYPE_INT, {.i64=COMBMATCH_SC}, COMBMATCH_NONE, NB_COMBMATCH-1, FLAGS, .unit = "combmatching" },
141 { "none", "disable combmatching", 0, AV_OPT_TYPE_CONST, {.i64=COMBMATCH_NONE}, INT_MIN, INT_MAX, FLAGS, .unit = "combmatching" },
142 { "sc", "enable combmatching only on scene change", 0, AV_OPT_TYPE_CONST, {.i64=COMBMATCH_SC}, INT_MIN, INT_MAX, FLAGS, .unit = "combmatching" },
143 { "full", "enable combmatching all the time", 0, AV_OPT_TYPE_CONST, {.i64=COMBMATCH_FULL}, INT_MIN, INT_MAX, FLAGS, .unit = "combmatching" },
144 { "combdbg", "enable comb debug", OFFSET(combdbg), AV_OPT_TYPE_INT, {.i64=COMBDBG_NONE}, COMBDBG_NONE, NB_COMBDBG-1, FLAGS, .unit = "dbglvl" },
145 { "none", "no forced calculation", 0, AV_OPT_TYPE_CONST, {.i64=COMBDBG_NONE}, INT_MIN, INT_MAX, FLAGS, .unit = "dbglvl" },
146 { "pcn", "calculate p/c/n", 0, AV_OPT_TYPE_CONST, {.i64=COMBDBG_PCN}, INT_MIN, INT_MAX, FLAGS, .unit = "dbglvl" },
147 { "pcnub", "calculate p/c/n/u/b", 0, AV_OPT_TYPE_CONST, {.i64=COMBDBG_PCNUB}, INT_MIN, INT_MAX, FLAGS, .unit = "dbglvl" },
148 { "cthresh", "set the area combing threshold used for combed frame detection", OFFSET(cthresh), AV_OPT_TYPE_INT, {.i64= 9}, -1, 0xff, FLAGS },
149 { "chroma", "set whether or not chroma is considered in the combed frame decision", OFFSET(chroma), AV_OPT_TYPE_BOOL,{.i64= 0}, 0, 1, FLAGS },
150 { "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 },
151 { "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 },
152 { "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 },
153 { NULL }
154 };
155
156 AVFILTER_DEFINE_CLASS(fieldmatch);
157
158 1549 static int get_width(const FieldMatchContext *fm, const AVFrame *f, int plane, int input)
159 {
160
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 1549 return plane ? AV_CEIL_RSHIFT(f->width, fm->hsub[input]) : f->width;
161 }
162
163 1549 static int get_height(const FieldMatchContext *fm, const AVFrame *f, int plane, int input)
164 {
165
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 1549 return plane ? AV_CEIL_RSHIFT(f->height, fm->vsub[input]) : f->height;
166 }
167
168 130 static int64_t luma_abs_diff(const AVFrame *f1, const AVFrame *f2)
169 {
170 int x, y;
171 130 const uint8_t *srcp1 = f1->data[0];
172 130 const uint8_t *srcp2 = f2->data[0];
173 130 const int src1_linesize = f1->linesize[0];
174 130 const int src2_linesize = f2->linesize[0];
175 130 const int width = f1->width;
176 130 const int height = f1->height;
177 130 int64_t acc = 0;
178
179
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180
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 13216320 for (x = 0; x < width; x++)
181 13178880 acc += abs(srcp1[x] - srcp2[x]);
182 37440 srcp1 += src1_linesize;
183 37440 srcp2 += src2_linesize;
184 }
185 130 return acc;
186 }
187
188 595 static void fill_buf(uint8_t *data, int w, int h, int linesize, uint8_t v)
189 {
190 int y;
191
192
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 153955 for (y = 0; y < h; y++) {
193 153360 memset(data, v, w);
194 153360 data += linesize;
195 }
196 595 }
197
198 220 static int calc_combed_score(const FieldMatchContext *fm, const AVFrame *src)
199 {
200 220 int x, y, plane, max_v = 0;
201 220 const int cthresh = fm->cthresh;
202 220 const int cthresh6 = cthresh * 6;
203
204
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 440 for (plane = 0; plane < (fm->chroma ? 3 : 1); plane++) {
205 220 const uint8_t *srcp = src->data[plane];
206 220 const int src_linesize = src->linesize[plane];
207 220 const int width = get_width (fm, src, plane, INPUT_MAIN);
208 220 const int height = get_height(fm, src, plane, INPUT_MAIN);
209 220 uint8_t *cmkp = fm->cmask_data[plane];
210 220 const int cmk_linesize = fm->cmask_linesize[plane];
211
212
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 220 if (cthresh < 0) {
213 ✗ fill_buf(cmkp, width, height, cmk_linesize, 0xff);
214 ✗ continue;
215 }
216 220 fill_buf(cmkp, width, height, cmk_linesize, 0);
217
218 /* [1 -3 4 -3 1] vertical filter */
219 #define FILTER(xm2, xm1, xp1, xp2) \
220 abs( 4 * srcp[x] \
221 -3 * (srcp[x + (xm1)*src_linesize] + srcp[x + (xp1)*src_linesize]) \
222 + (srcp[x + (xm2)*src_linesize] + srcp[x + (xp2)*src_linesize])) > cthresh6
223
224 /* first line */
225
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 77660 for (x = 0; x < width; x++) {
226 77440 const int s1 = abs(srcp[x] - srcp[x + src_linesize]);
227
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 77440 if (s1 > cthresh && FILTER(2, 1, 1, 2))
228 40180 cmkp[x] = 0xff;
229 }
230 220 srcp += src_linesize;
231 220 cmkp += cmk_linesize;
232
233 /* second line */
234
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 77660 for (x = 0; x < width; x++) {
235 77440 const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
236 77440 const int s2 = abs(srcp[x] - srcp[x + src_linesize]);
237
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 77440 if (s1 > cthresh && s2 > cthresh && FILTER(2, -1, 1, 2))
238 37099 cmkp[x] = 0xff;
239 }
240 220 srcp += src_linesize;
241 220 cmkp += cmk_linesize;
242
243 /* all lines minus first two and last two */
244
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245
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 22055440 for (x = 0; x < width; x++) {
246 21992960 const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
247 21992960 const int s2 = abs(srcp[x] - srcp[x + src_linesize]);
248
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 21992960 if (s1 > cthresh && s2 > cthresh && FILTER(-2, -1, 1, 2))
249 9768879 cmkp[x] = 0xff;
250 }
251 62480 srcp += src_linesize;
252 62480 cmkp += cmk_linesize;
253 }
254
255 /* before-last line */
256
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 77660 for (x = 0; x < width; x++) {
257 77440 const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
258 77440 const int s2 = abs(srcp[x] - srcp[x + src_linesize]);
259
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 77440 if (s1 > cthresh && s2 > cthresh && FILTER(-2, -1, 1, -2))
260 30781 cmkp[x] = 0xff;
261 }
262 220 srcp += src_linesize;
263 220 cmkp += cmk_linesize;
264
265 /* last line */
266
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 77660 for (x = 0; x < width; x++) {
267 77440 const int s1 = abs(srcp[x] - srcp[x - src_linesize]);
268
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 77440 if (s1 > cthresh && FILTER(-2, -1, -1, -2))
269 35380 cmkp[x] = 0xff;
270 }
271 }
272
273
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 220 if (fm->chroma) {
274 ✗ uint8_t *cmkp = fm->cmask_data[0];
275 ✗ uint8_t *cmkpU = fm->cmask_data[1];
276 ✗ uint8_t *cmkpV = fm->cmask_data[2];
277 ✗ const int width = AV_CEIL_RSHIFT(src->width, fm->hsub[INPUT_MAIN]);
278 ✗ const int height = AV_CEIL_RSHIFT(src->height, fm->vsub[INPUT_MAIN]);
279 ✗ const int cmk_linesize = fm->cmask_linesize[0] << 1;
280 ✗ const int cmk_linesizeUV = fm->cmask_linesize[2];
281 ✗ uint8_t *cmkpp = cmkp - (cmk_linesize>>1);
282 ✗ uint8_t *cmkpn = cmkp + (cmk_linesize>>1);
283 ✗ uint8_t *cmkpnn = cmkp + cmk_linesize;
284 ✗ for (y = 1; y < height - 1; y++) {
285 ✗ cmkpp += cmk_linesize;
286 ✗ cmkp += cmk_linesize;
287 ✗ cmkpn += cmk_linesize;
288 ✗ cmkpnn += cmk_linesize;
289 ✗ cmkpV += cmk_linesizeUV;
290 ✗ cmkpU += cmk_linesizeUV;
291 ✗ for (x = 1; x < width - 1; x++) {
292 #define HAS_FF_AROUND(p, lz) (p[(x)-1 - (lz)] == 0xff || p[(x) - (lz)] == 0xff || p[(x)+1 - (lz)] == 0xff || \
293 p[(x)-1 ] == 0xff || p[(x)+1 ] == 0xff || \
294 p[(x)-1 + (lz)] == 0xff || p[(x) + (lz)] == 0xff || p[(x)+1 + (lz)] == 0xff)
295 ✗ if ((cmkpV[x] == 0xff && HAS_FF_AROUND(cmkpV, cmk_linesizeUV)) ||
296 ✗ (cmkpU[x] == 0xff && HAS_FF_AROUND(cmkpU, cmk_linesizeUV))) {
297 ✗ ((uint16_t*)cmkp)[x] = 0xffff;
298 ✗ ((uint16_t*)cmkpn)[x] = 0xffff;
299 ✗ if (y&1) ((uint16_t*)cmkpp)[x] = 0xffff;
300 ✗ else ((uint16_t*)cmkpnn)[x] = 0xffff;
301 }
302 }
303 }
304 }
305
306 {
307 220 const int blockx = fm->blockx;
308 220 const int blocky = fm->blocky;
309 220 const int xhalf = blockx/2;
310 220 const int yhalf = blocky/2;
311 220 const int cmk_linesize = fm->cmask_linesize[0];
312 220 const uint8_t *cmkp = fm->cmask_data[0] + cmk_linesize;
313 220 const int width = src->width;
314 220 const int height = src->height;
315 220 const int xblocks = ((width+xhalf)/blockx) + 1;
316 220 const int xblocks4 = xblocks<<2;
317 220 const int yblocks = ((height+yhalf)/blocky) + 1;
318 220 int *c_array = fm->c_array;
319 220 const int arraysize = (xblocks*yblocks)<<2;
320 220 int heighta = (height/(blocky/2))*(blocky/2);
321 220 const int widtha = (width /(blockx/2))*(blockx/2);
322
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 220 if (heighta == height)
323 220 heighta = height - yhalf;
324 220 memset(c_array, 0, arraysize * sizeof(*c_array));
325
326 #define C_ARRAY_ADD(v) do { \
327 const int box1 = (x / blockx) * 4; \
328 const int box2 = ((x + xhalf) / blockx) * 4; \
329 c_array[temp1 + box1 ] += v; \
330 c_array[temp1 + box2 + 1] += v; \
331 c_array[temp2 + box1 + 2] += v; \
332 c_array[temp2 + box2 + 3] += v; \
333 } while (0)
334
335 #define VERTICAL_HALF(y_start, y_end) do { \
336 for (y = y_start; y < y_end; y++) { \
337 const int temp1 = (y / blocky) * xblocks4; \
338 const int temp2 = ((y + yhalf) / blocky) * xblocks4; \
339 for (x = 0; x < width; x++) \
340 if (cmkp[x - cmk_linesize] == 0xff && \
341 cmkp[x ] == 0xff && \
342 cmkp[x + cmk_linesize] == 0xff) \
343 C_ARRAY_ADD(1); \
344 cmkp += cmk_linesize; \
345 } \
346 } while (0)
347
348
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 543840 VERTICAL_HALF(1, yhalf);
349
350
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 7700 for (y = yhalf; y < heighta; y += yhalf) {
351 7480 const int temp1 = (y / blocky) * xblocks4;
352 7480 const int temp2 = ((y + yhalf) / blocky) * xblocks4;
353
354
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 336600 for (x = 0; x < widtha; x += xhalf) {
355 329120 const uint8_t *cmkp_tmp = cmkp + x;
356 329120 int u, v, sum = 0;
357
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 2962080 for (u = 0; u < yhalf; u++) {
358
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 23696640 for (v = 0; v < xhalf; v++)
359
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 21063680 if (cmkp_tmp[v - cmk_linesize] == 0xff &&
360
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 9365808 cmkp_tmp[v ] == 0xff &&
361
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 8453820 cmkp_tmp[v + cmk_linesize] == 0xff)
362 7819534 sum++;
363 2632960 cmkp_tmp += cmk_linesize;
364 }
365
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 329120 if (sum)
366 200837 C_ARRAY_ADD(sum);
367 }
368
369
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 7480 for (x = widtha; x < width; x++) {
370 ✗ const uint8_t *cmkp_tmp = cmkp + x;
371 ✗ int u, sum = 0;
372 ✗ for (u = 0; u < yhalf; u++) {
373 ✗ if (cmkp_tmp[-cmk_linesize] == 0xff &&
374 ✗ cmkp_tmp[ 0] == 0xff &&
375 ✗ cmkp_tmp[ cmk_linesize] == 0xff)
376 ✗ sum++;
377 ✗ cmkp_tmp += cmk_linesize;
378 }
379 ✗ if (sum)
380 ✗ C_ARRAY_ADD(sum);
381 }
382
383 7480 cmkp += cmk_linesize * yhalf;
384 }
385
386
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 543840 VERTICAL_HALF(heighta, height - 1);
387
388
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389
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 384560 if (c_array[x] > max_v)
390 971 max_v = c_array[x];
391 }
392 220 return max_v;
393 }
394
395 // the secret is that tbuffer is an interlaced, offset subset of all the lines
396 375 static void build_abs_diff_mask(const uint8_t *prvp, int prv_linesize,
397 const uint8_t *nxtp, int nxt_linesize,
398 uint8_t *tbuffer, int tbuf_linesize,
399 int width, int height)
400 {
401 int y, x;
402
403 375 prvp -= prv_linesize;
404 375 nxtp -= nxt_linesize;
405
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 45375 for (y = 0; y < height; y++) {
406
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 11608200 for (x = 0; x < width; x++)
407 11563200 tbuffer[x] = FFABS(prvp[x] - nxtp[x]);
408 45000 prvp += prv_linesize;
409 45000 nxtp += nxt_linesize;
410 45000 tbuffer += tbuf_linesize;
411 }
412 375 }
413
414 /**
415 * Build a map over which pixels differ a lot/a little
416 */
417 375 static void build_diff_map(FieldMatchContext *fm,
418 const uint8_t *prvp, int prv_linesize,
419 const uint8_t *nxtp, int nxt_linesize,
420 uint8_t *dstp, int dst_linesize, int height,
421 int width, int plane)
422 {
423 int x, y, u, diff, count;
424
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 375 int tpitch = plane ? fm->tpitchuv : fm->tpitchy;
425 375 const uint8_t *dp = fm->tbuffer + tpitch;
426
427 375 build_abs_diff_mask(prvp, prv_linesize, nxtp, nxt_linesize,
428 fm->tbuffer, tpitch, width, height>>1);
429
430
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431
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432 11298700 diff = dp[x];
433
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 11298700 if (diff > 3) {
434
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 17203100 for (count = 0, u = x-1; u < x+2 && count < 2; u++) {
435 8853249 count += dp[u-tpitch] > 3;
436 8853249 count += dp[u ] > 3;
437 8853249 count += dp[u+tpitch] > 3;
438 }
439
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 8349851 if (count > 1) {
440 8341988 dstp[x] = 1;
441
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 8341988 if (diff > 19) {
442 5368701 int upper = 0, lower = 0;
443
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444
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 12487253 if (dp[u-tpitch] > 19) { count++; upper = 1; }
445
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 12487253 if (dp[u ] > 19) count++;
446
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 12487253 if (dp[u+tpitch] > 19) { count++; lower = 1; }
447 }
448
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449
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 4947837 if (upper && lower) {
450 4503660 dstp[x] |= 1<<1;
451 } else {
452 444177 int upper2 = 0, lower2 = 0;
453
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 4419731 for (u = FFMAX(x-4,0); u < FFMIN(x+5,width); u++) {
454
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 3975554 if (y != 2 && dp[u-2*tpitch] > 19) upper2 = 1;
455
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 3975554 if ( dp[u- tpitch] > 19) upper = 1;
456
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 3975554 if ( dp[u+ tpitch] > 19) lower = 1;
457
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 3975554 if (y != height-4 && dp[u+2*tpitch] > 19) lower2 = 1;
458 }
459
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 444177 if ((upper && (lower || upper2)) ||
460
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 54869 (lower && (upper || lower2)))
461 431775 dstp[x] |= 1<<1;
462
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 12402 else if (count > 5)
463 8927 dstp[x] |= 1<<2;
464 }
465 }
466 }
467 }
468 }
469 }
470 44250 dp += tpitch;
471 44250 dstp += dst_linesize;
472 }
473 375 }
474
475 enum { mP, mC, mN, mB, mU };
476
477 750 static int get_field_base(int match, int field)
478 {
479
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 750 return match < 3 ? 2 - field : 1 + field;
480 }
481
482 750 static AVFrame *select_frame(FieldMatchContext *fm, int match)
483 {
484
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 750 if (match == mP || match == mB) return fm->prv;
485
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 375 else if (match == mN || match == mU) return fm->nxt;
486 375 else /* match == mC */ return fm->src;
487 }
488
489 125 static int compare_fields(FieldMatchContext *fm, int match1, int match2, int field)
490 {
491 int plane, ret;
492 125 uint64_t accumPc = 0, accumPm = 0, accumPml = 0;
493 125 uint64_t accumNc = 0, accumNm = 0, accumNml = 0;
494 int norm1, norm2, mtn1, mtn2;
495 float c1, c2, mr;
496 125 const AVFrame *src = fm->src;
497
498
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 500 for (plane = 0; plane < (fm->mchroma ? 3 : 1); plane++) {
499 int x, y, temp1, temp2, fbase;
500 const AVFrame *prev, *next;
501 375 uint8_t *mapp = fm->map_data[plane];
502 375 int map_linesize = fm->map_linesize[plane];
503 375 const uint8_t *srcp = src->data[plane];
504 375 const int src_linesize = src->linesize[plane];
505 375 const int srcf_linesize = src_linesize << 1;
506 int prv_linesize, nxt_linesize;
507 int prvf_linesize, nxtf_linesize;
508 375 const int width = get_width (fm, src, plane, INPUT_MAIN);
509 375 const int height = get_height(fm, src, plane, INPUT_MAIN);
510
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 375 const int y0a = fm->y0 >> (plane ? fm->vsub[INPUT_MAIN] : 0);
511
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 375 const int y1a = fm->y1 >> (plane ? fm->vsub[INPUT_MAIN] : 0);
512
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 375 const int startx = (plane == 0 ? 8 : 8 >> fm->hsub[INPUT_MAIN]);
513 375 const int stopx = width - startx;
514 const uint8_t *srcpf, *srcf, *srcnf;
515 const uint8_t *prvpf, *prvnf, *nxtpf, *nxtnf;
516
517 375 fill_buf(mapp, width, height, map_linesize, 0);
518
519 /* match1 */
520 375 fbase = get_field_base(match1, field);
521 375 srcf = srcp + (fbase + 1) * src_linesize;
522 375 srcpf = srcf - srcf_linesize;
523 375 srcnf = srcf + srcf_linesize;
524 375 mapp = mapp + fbase * map_linesize;
525 375 prev = select_frame(fm, match1);
526 375 prv_linesize = prev->linesize[plane];
527 375 prvf_linesize = prv_linesize << 1;
528 375 prvpf = prev->data[plane] + fbase * prv_linesize; // previous frame, previous field
529 375 prvnf = prvpf + prvf_linesize; // previous frame, next field
530
531 /* match2 */
532 375 fbase = get_field_base(match2, field);
533 375 next = select_frame(fm, match2);
534 375 nxt_linesize = next->linesize[plane];
535 375 nxtf_linesize = nxt_linesize << 1;
536 375 nxtpf = next->data[plane] + fbase * nxt_linesize; // next frame, previous field
537 375 nxtnf = nxtpf + nxtf_linesize; // next frame, next field
538
539 375 map_linesize <<= 1;
540
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 375 if ((match1 >= 3 && field == 1) || (match1 < 3 && field != 1))
541 ✗ build_diff_map(fm, prvpf, prvf_linesize, nxtpf, nxtf_linesize,
542 mapp, map_linesize, height, width, plane);
543 else
544 375 build_diff_map(fm, prvnf, prvf_linesize, nxtnf, nxtf_linesize,
545 mapp + map_linesize, map_linesize, height, width, plane);
546
547
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548
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549
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550
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 10869600 if (mapp[x] > 0 || mapp[x + map_linesize] > 0) {
551 8738725 temp1 = srcpf[x] + (srcf[x] << 2) + srcnf[x]; // [1 4 1]
552
553 8738725 temp2 = abs(3 * (prvpf[x] + prvnf[x]) - temp1);
554
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 8738725 if (temp2 > 23 && ((mapp[x]&1) || (mapp[x + map_linesize]&1)))
555 3823099 accumPc += temp2;
556
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557
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 3272461 if ((mapp[x]&2) || (mapp[x + map_linesize]&2))
558 2659830 accumPm += temp2;
559
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 3272461 if ((mapp[x]&4) || (mapp[x + map_linesize]&4))
560 1439 accumPml += temp2;
561 }
562
563 8738725 temp2 = abs(3 * (nxtpf[x] + nxtnf[x]) - temp1);
564
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 8738725 if (temp2 > 23 && ((mapp[x]&1) || (mapp[x + map_linesize]&1)))
565 6363210 accumNc += temp2;
566
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567
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 5577754 if ((mapp[x]&2) || (mapp[x + map_linesize]&2))
568 3569908 accumNm += temp2;
569
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 5577754 if ((mapp[x]&4) || (mapp[x + map_linesize]&4))
570 10363 accumNml += temp2;
571 }
572 }
573 }
574 }
575 44250 prvpf += prvf_linesize;
576 44250 prvnf += prvf_linesize;
577 44250 srcpf += srcf_linesize;
578 44250 srcf += srcf_linesize;
579 44250 srcnf += srcf_linesize;
580 44250 nxtpf += nxtf_linesize;
581 44250 nxtnf += nxtf_linesize;
582 44250 mapp += map_linesize;
583 }
584 }
585
586
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 125 if (accumPm < 500 && accumNm < 500 && (accumPml >= 500 || accumNml >= 500) &&
587 ✗ FFMAX(accumPml,accumNml) > 3*FFMIN(accumPml,accumNml)) {
588 ✗ accumPm = accumPml;
589 ✗ accumNm = accumNml;
590 }
591
592 125 norm1 = (int)((accumPc / 6.0f) + 0.5f);
593 125 norm2 = (int)((accumNc / 6.0f) + 0.5f);
594 125 mtn1 = (int)((accumPm / 6.0f) + 0.5f);
595 125 mtn2 = (int)((accumNm / 6.0f) + 0.5f);
596
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 125 c1 = ((float)FFMAX(norm1,norm2)) / ((float)FFMAX(FFMIN(norm1,norm2),1));
597
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 125 c2 = ((float)FFMAX(mtn1, mtn2)) / ((float)FFMAX(FFMIN(mtn1, mtn2), 1));
598
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 125 mr = ((float)FFMAX(mtn1, mtn2)) / ((float)FFMAX(FFMAX(norm1,norm2),1));
599
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 125 if (((mtn1 >= 500 || mtn2 >= 500) && (mtn1*2 < mtn2*1 || mtn2*2 < mtn1*1)) ||
600
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 22 ((mtn1 >= 1000 || mtn2 >= 1000) && (mtn1*3 < mtn2*2 || mtn2*3 < mtn1*2)) ||
601
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 17 ((mtn1 >= 2000 || mtn2 >= 2000) && (mtn1*5 < mtn2*4 || mtn2*5 < mtn1*4)) ||
602
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 14 ((mtn1 >= 4000 || mtn2 >= 4000) && c2 > c1))
603
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 114 ret = mtn1 > mtn2 ? match2 : match1;
604
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 11 else if (mr > 0.005 && FFMAX(mtn1, mtn2) > 150 && (mtn1*2 < mtn2*1 || mtn2*2 < mtn1*1))
605 ✗ ret = mtn1 > mtn2 ? match2 : match1;
606 else
607
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 11 ret = norm1 > norm2 ? match2 : match1;
608 125 return ret;
609 }
610
611 318 static void copy_fields(const FieldMatchContext *fm, AVFrame *dst,
612 const AVFrame *src, int field, int input)
613 {
614 int plane;
615
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 1272 for (plane = 0; plane < 4 && src->data[plane] && src->linesize[plane]; plane++) {
616 954 const int plane_h = get_height(fm, src, plane, input);
617
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 954 const int nb_copy_fields = (plane_h >> 1) + (field ? 0 : (plane_h & 1));
618 954 av_image_copy_plane(dst->data[plane] + field*dst->linesize[plane], dst->linesize[plane] << 1,
619 954 src->data[plane] + field*src->linesize[plane], src->linesize[plane] << 1,
620 954 get_width(fm, src, plane, input) * fm->bpc, nb_copy_fields);
621 }
622 318 }
623
624 159 static AVFrame *create_weave_frame(AVFilterContext *ctx, int match, int field,
625 const AVFrame *prv, AVFrame *src, const AVFrame *nxt, int input)
626 {
627 AVFrame *dst;
628 159 FieldMatchContext *fm = ctx->priv;
629
630
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 159 if (match == mC) {
631 ✗ dst = av_frame_clone(src);
632 } else {
633
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 159 AVFilterLink *link = input == INPUT_CLEANSRC ? ctx->outputs[0] : ctx->inputs[INPUT_MAIN];
634
635 159 dst = ff_get_video_buffer(link, link->w, link->h);
636
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 159 if (!dst)
637 ✗ return NULL;
638 159 av_frame_copy_props(dst, src);
639
640
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 159 switch (match) {
641 49 case mP: copy_fields(fm, dst, src, 1-field, input); copy_fields(fm, dst, prv, field, input); break;
642 110 case mN: copy_fields(fm, dst, src, 1-field, input); copy_fields(fm, dst, nxt, field, input); break;
643 ✗ case mB: copy_fields(fm, dst, src, field, input); copy_fields(fm, dst, prv, 1-field, input); break;
644 ✗ case mU: copy_fields(fm, dst, src, field, input); copy_fields(fm, dst, nxt, 1-field, input); break;
645 ✗ default: av_assert0(0);
646 }
647 }
648 159 return dst;
649 }
650
651 110 static int checkmm(AVFilterContext *ctx, int *combs, int m1, int m2,
652 AVFrame **gen_frames, int field)
653 {
654 110 const FieldMatchContext *fm = ctx->priv;
655
656 #define LOAD_COMB(mid) do { \
657 if (combs[mid] < 0) { \
658 if (!gen_frames[mid]) \
659 gen_frames[mid] = create_weave_frame(ctx, mid, field, \
660 fm->prv, fm->src, fm->nxt, \
661 INPUT_MAIN); \
662 combs[mid] = calc_combed_score(fm, gen_frames[mid]); \
663 } \
664 } while (0)
665
666
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 110 LOAD_COMB(m1);
667
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 110 LOAD_COMB(m2);
668
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 110 if ((combs[m2] * 3 < combs[m1] || (combs[m2] * 2 < combs[m1] && combs[m1] > fm->combpel)) &&
670 ✗ abs(combs[m2] - combs[m1]) >= 30 && combs[m2] < fm->combpel)
671 ✗ return m2;
672 else
673 110 return m1;
674 }
675
676 static const int fxo0m[] = { mP, mC, mN, mB, mU };
677 static const int fxo1m[] = { mN, mC, mP, mU, mB };
678
679 130 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
680 {
681 130 AVFilterContext *ctx = inlink->dst;
682 130 AVFilterLink *outlink = ctx->outputs[0];
683 130 FilterLink *outl = ff_filter_link(outlink);
684 130 FieldMatchContext *fm = ctx->priv;
685 130 int combs[] = { -1, -1, -1, -1, -1 };
686 130 int order, field, i, match, interlaced_frame, sc = 0, ret = 0;
687 const int *fxo;
688 130 AVFrame *gen_frames[] = { NULL, NULL, NULL, NULL, NULL };
689 130 AVFrame *dst = NULL;
690
691 /* update frames queue(s) */
692 #define SLIDING_FRAME_WINDOW(prv, src, nxt) do { \
693 if (prv != src) /* 2nd loop exception (1st has prv==src and we don't want to loose src) */ \
694 av_frame_free(&prv); \
695 prv = src; \
696 src = nxt; \
697 if (in) \
698 nxt = in; \
699 if (!prv) \
700 prv = src; \
701 if (!prv) /* received only one frame at that point */ \
702 return 0; \
703 av_assert0(prv && src && nxt); \
704 } while (0)
705
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 130 if (FF_INLINK_IDX(inlink) == INPUT_MAIN) {
706
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 130 av_assert0(fm->got_frame[INPUT_MAIN] == 0);
707
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 130 SLIDING_FRAME_WINDOW(fm->prv, fm->src, fm->nxt);
708 125 fm->got_frame[INPUT_MAIN] = 1;
709 } else {
710 ✗ av_assert0(fm->got_frame[INPUT_CLEANSRC] == 0);
711 ✗ SLIDING_FRAME_WINDOW(fm->prv2, fm->src2, fm->nxt2);
712 ✗ fm->got_frame[INPUT_CLEANSRC] = 1;
713 }
714
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 125 if (!fm->got_frame[INPUT_MAIN] || (fm->ppsrc && !fm->got_frame[INPUT_CLEANSRC]))
715 ✗ return 0;
716 125 fm->got_frame[INPUT_MAIN] = fm->got_frame[INPUT_CLEANSRC] = 0;
717 125 in = fm->src;
718
719 /* parity */
720
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 250 order = fm->order != FM_PARITY_AUTO ? fm->order : ((in->flags & AV_FRAME_FLAG_INTERLACED) ?
721
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 125 !!(in->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST) : 1);
722
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 125 field = fm->field != FM_PARITY_AUTO ? fm->field : order;
723
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 125 av_assert0(order == 0 || order == 1 || field == 0 || field == 1);
724
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 125 fxo = field ^ order ? fxo1m : fxo0m;
725
726 /* debug mode: we generate all the fields combinations and their associated
727 * combed score. XXX: inject as frame metadata? */
728
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 125 if (fm->combdbg) {
729 ✗ for (i = 0; i < FF_ARRAY_ELEMS(combs); i++) {
730 ✗ if (i > mN && fm->combdbg == COMBDBG_PCN)
731 ✗ break;
732 ✗ gen_frames[i] = create_weave_frame(ctx, i, field, fm->prv, fm->src, fm->nxt, INPUT_MAIN);
733 ✗ if (!gen_frames[i]) {
734 ✗ ret = AVERROR(ENOMEM);
735 ✗ goto fail;
736 }
737 ✗ combs[i] = calc_combed_score(fm, gen_frames[i]);
738 }
739 ✗ av_log(ctx, AV_LOG_INFO, "COMBS: %3d %3d %3d %3d %3d\n",
740 combs[0], combs[1], combs[2], combs[3], combs[4]);
741 } else {
742 125 gen_frames[mC] = av_frame_clone(fm->src);
743
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 125 if (!gen_frames[mC]) {
744 ✗ ret = AVERROR(ENOMEM);
745 ✗ goto fail;
746 }
747 }
748
749 /* p/c selection and optional 3-way p/c/n matches */
750 125 match = compare_fields(fm, fxo[mC], fxo[mP], field);
751
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 125 if (fm->mode == MODE_PCN || fm->mode == MODE_PCN_UB)
752 ✗ match = compare_fields(fm, match, fxo[mN], field);
753
754 /* scene change check */
755
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 125 if (fm->combmatch == COMBMATCH_SC) {
756
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 125 if (fm->lastn == outl->frame_count_in - 1) {
757
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 55 if (fm->lastscdiff > fm->scthresh)
758 45 sc = 1;
759
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 70 } else if (luma_abs_diff(fm->prv, fm->src) > fm->scthresh) {
760 20 sc = 1;
761 }
762
763
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 125 if (!sc) {
764 60 fm->lastn = outl->frame_count_in;
765 60 fm->lastscdiff = luma_abs_diff(fm->src, fm->nxt);
766 60 sc = fm->lastscdiff > fm->scthresh;
767 }
768 }
769
770
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 125 if (fm->combmatch == COMBMATCH_FULL || (fm->combmatch == COMBMATCH_SC && sc)) {
771
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 110 switch (fm->mode) {
772 /* 2-way p/c matches */
773 ✗ case MODE_PC:
774 ✗ match = checkmm(ctx, combs, match, match == fxo[mP] ? fxo[mC] : fxo[mP], gen_frames, field);
775 ✗ break;
776 110 case MODE_PC_N:
777 110 match = checkmm(ctx, combs, match, fxo[mN], gen_frames, field);
778 110 break;
779 ✗ case MODE_PC_U:
780 ✗ match = checkmm(ctx, combs, match, fxo[mU], gen_frames, field);
781 ✗ break;
782 ✗ case MODE_PC_N_UB:
783 ✗ match = checkmm(ctx, combs, match, fxo[mN], gen_frames, field);
784 ✗ match = checkmm(ctx, combs, match, fxo[mU], gen_frames, field);
785 ✗ match = checkmm(ctx, combs, match, fxo[mB], gen_frames, field);
786 ✗ break;
787 /* 3-way p/c/n matches */
788 ✗ case MODE_PCN:
789 ✗ match = checkmm(ctx, combs, match, match == fxo[mP] ? fxo[mC] : fxo[mP], gen_frames, field);
790 ✗ break;
791 ✗ case MODE_PCN_UB:
792 ✗ match = checkmm(ctx, combs, match, fxo[mU], gen_frames, field);
793 ✗ match = checkmm(ctx, combs, match, fxo[mB], gen_frames, field);
794 ✗ break;
795 ✗ default:
796 ✗ av_assert0(0);
797 }
798 }
799
800 /* keep fields as-is if not matched properly */
801 125 interlaced_frame = combs[match] >= fm->combpel;
802
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 125 if (interlaced_frame && fm->combmatch == COMBMATCH_FULL) {
803 ✗ match = mC;
804 }
805
806 /* get output frame and drop the others */
807
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 125 if (fm->ppsrc) {
808 /* field matching was based on a filtered/post-processed input, we now
809 * pick the untouched fields from the clean source */
810 ✗ dst = create_weave_frame(ctx, match, field, fm->prv2, fm->src2, fm->nxt2, INPUT_CLEANSRC);
811 } else {
812
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 125 if (!gen_frames[match]) { // XXX: is that possible?
813 ✗ dst = create_weave_frame(ctx, match, field, fm->prv, fm->src, fm->nxt, INPUT_MAIN);
814 } else {
815 125 dst = gen_frames[match];
816 125 gen_frames[match] = NULL;
817 }
818 }
819
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 125 if (!dst) {
820 ✗ ret = AVERROR(ENOMEM);
821 ✗ goto fail;
822 }
823
824 /* mark the frame we are unable to match properly as interlaced so a proper
825 * de-interlacer can take the relay */
826 #if FF_API_INTERLACED_FRAME
827 FF_DISABLE_DEPRECATION_WARNINGS
828 125 dst->interlaced_frame = interlaced_frame;
829 FF_ENABLE_DEPRECATION_WARNINGS
830 #endif
831
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 125 if (interlaced_frame) {
832 110 dst->flags |= AV_FRAME_FLAG_INTERLACED;
833 110 av_log(ctx, AV_LOG_WARNING, "Frame #%"PRId64" at %s is still interlaced\n",
834 110 outl->frame_count_in, av_ts2timestr(in->pts, &inlink->time_base));
835 #if FF_API_INTERLACED_FRAME
836 FF_DISABLE_DEPRECATION_WARNINGS
837 110 dst->top_field_first = field;
838 FF_ENABLE_DEPRECATION_WARNINGS
839 #endif
840
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 110 if (field)
841 110 dst->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST;
842 else
843 ✗ dst->flags &= ~AV_FRAME_FLAG_TOP_FIELD_FIRST;
844 } else
845 15 dst->flags &= ~AV_FRAME_FLAG_INTERLACED;
846
847 125 av_log(ctx, AV_LOG_DEBUG, "SC:%d | COMBS: %3d %3d %3d %3d %3d (combpel=%d)"
848 " match=%d combed=%s\n", sc, combs[0], combs[1], combs[2], combs[3], combs[4],
849
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 125 fm->combpel, match, (dst->flags & AV_FRAME_FLAG_INTERLACED) ? "YES" : "NO");
850
851 125 fail:
852
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 750 for (i = 0; i < FF_ARRAY_ELEMS(gen_frames); i++)
853 625 av_frame_free(&gen_frames[i]);
854
855
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 125 if (ret >= 0)
856 125 return ff_filter_frame(outlink, dst);
857 ✗ return ret;
858 }
859
860 255 static int activate(AVFilterContext *ctx)
861 {
862 255 FieldMatchContext *fm = ctx->priv;
863 255 AVFrame *frame = NULL;
864 255 int ret = 0, status;
865 int64_t pts;
866
867
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 255 FF_FILTER_FORWARD_STATUS_BACK_ALL(ctx->outputs[0], ctx);
868
869
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 510 if ((fm->got_frame[INPUT_MAIN] == 0) &&
870 255 (ret = ff_inlink_consume_frame(ctx->inputs[INPUT_MAIN], &frame)) > 0) {
871 130 ret = filter_frame(ctx->inputs[INPUT_MAIN], frame);
872
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 130 if (ret < 0)
873 ✗ return ret;
874 }
875
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 255 if (ret < 0)
876 ✗ return ret;
877
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 255 if (fm->ppsrc &&
878 ✗ (fm->got_frame[INPUT_CLEANSRC] == 0) &&
879 ✗ (ret = ff_inlink_consume_frame(ctx->inputs[INPUT_CLEANSRC], &frame)) > 0) {
880 ✗ ret = filter_frame(ctx->inputs[INPUT_CLEANSRC], frame);
881 ✗ if (ret < 0)
882 ✗ return ret;
883 }
884
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 255 if (ret < 0) {
885 ✗ return ret;
886
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 255 } else if (ff_inlink_acknowledge_status(ctx->inputs[INPUT_MAIN], &status, &pts)) {
887 ✗ if (status == AVERROR_EOF) { // flushing
888 ✗ fm->eof |= 1 << INPUT_MAIN;
889 ✗ ret = filter_frame(ctx->inputs[INPUT_MAIN], NULL);
890 }
891 ✗ ff_outlink_set_status(ctx->outputs[0], status, pts);
892 ✗ return ret;
893
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 255 } else if (fm->ppsrc && ff_inlink_acknowledge_status(ctx->inputs[INPUT_CLEANSRC], &status, &pts)) {
894 ✗ if (status == AVERROR_EOF) { // flushing
895 ✗ fm->eof |= 1 << INPUT_CLEANSRC;
896 ✗ ret = filter_frame(ctx->inputs[INPUT_CLEANSRC], NULL);
897 }
898 ✗ ff_outlink_set_status(ctx->outputs[0], status, pts);
899 ✗ return ret;
900 } else {
901
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 255 if (ff_outlink_frame_wanted(ctx->outputs[0])) {
902
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 125 if (fm->got_frame[INPUT_MAIN] == 0)
903 125 ff_inlink_request_frame(ctx->inputs[INPUT_MAIN]);
904
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 125 if (fm->ppsrc && (fm->got_frame[INPUT_CLEANSRC] == 0))
905 ✗ ff_inlink_request_frame(ctx->inputs[INPUT_CLEANSRC]);
906 }
907 255 return 0;
908 }
909 }
910
911 6 static int query_formats(const AVFilterContext *ctx,
912 AVFilterFormatsConfig **cfg_in,
913 AVFilterFormatsConfig **cfg_out)
914 {
915 6 const FieldMatchContext *fm = ctx->priv;
916
917 static const enum AVPixelFormat pix_fmts[] = {
918 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
919 AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
920 AV_PIX_FMT_NONE
921 };
922 static const enum AVPixelFormat unproc_pix_fmts[] = {
923 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
924 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
925 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
926 AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
927 AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
928 AV_PIX_FMT_YUVJ411P,
929 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
930 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
931 AV_PIX_FMT_YUV440P10,
932 AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
933 AV_PIX_FMT_YUV440P12,
934 AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
935 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
936 AV_PIX_FMT_NONE
937 };
938 int ret;
939
940 6 AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
941
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 6 if (!fmts_list)
942 ✗ return AVERROR(ENOMEM);
943
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 6 if (!fm->ppsrc) {
944 6 return ff_set_common_formats2(ctx, cfg_in, cfg_out, fmts_list);
945 }
946
947 ✗ if ((ret = ff_formats_ref(fmts_list, &cfg_in[INPUT_MAIN]->formats)) < 0)
948 ✗ return ret;
949 ✗ fmts_list = ff_make_format_list(unproc_pix_fmts);
950 ✗ if (!fmts_list)
951 ✗ return AVERROR(ENOMEM);
952 ✗ if ((ret = ff_formats_ref(fmts_list, &cfg_out[0]->formats)) < 0)
953 ✗ return ret;
954 ✗ if ((ret = ff_formats_ref(fmts_list, &cfg_in[INPUT_CLEANSRC]->formats)) < 0)
955 ✗ return ret;
956 ✗ return 0;
957 }
958
959 5 static int config_input(AVFilterLink *inlink)
960 {
961 int ret;
962 5 AVFilterContext *ctx = inlink->dst;
963 5 FieldMatchContext *fm = ctx->priv;
964 5 const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
965 5 const int w = inlink->w;
966 5 const int h = inlink->h;
967
968 5 fm->scthresh = (int64_t)((w * h * 255.0 * fm->scthresh_flt) / 100.0);
969
970
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 10 if ((ret = av_image_alloc(fm->map_data, fm->map_linesize, w, h, inlink->format, 32)) < 0 ||
971 5 (ret = av_image_alloc(fm->cmask_data, fm->cmask_linesize, w, h, inlink->format, 32)) < 0)
972 ✗ return ret;
973
974 5 fm->hsub[INPUT_MAIN] = pix_desc->log2_chroma_w;
975 5 fm->vsub[INPUT_MAIN] = pix_desc->log2_chroma_h;
976
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 5 if (fm->ppsrc) {
977 ✗ pix_desc = av_pix_fmt_desc_get(ctx->inputs[INPUT_CLEANSRC]->format);
978 ✗ fm->hsub[INPUT_CLEANSRC] = pix_desc->log2_chroma_w;
979 ✗ fm->vsub[INPUT_CLEANSRC] = pix_desc->log2_chroma_h;
980 }
981
982 5 fm->tpitchy = FFALIGN(w, 16);
983 5 fm->tpitchuv = FFALIGN(w >> 1, 16);
984
985 5 fm->tbuffer = av_calloc((h/2 + 4) * fm->tpitchy, sizeof(*fm->tbuffer));
986 10 fm->c_array = av_malloc_array((((w + fm->blockx/2)/fm->blockx)+1) *
987 5 (((h + fm->blocky/2)/fm->blocky)+1),
988 4 * sizeof(*fm->c_array));
989
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 5 if (!fm->tbuffer || !fm->c_array)
990 ✗ return AVERROR(ENOMEM);
991
992 5 return 0;
993 }
994
995 11 static av_cold int fieldmatch_init(AVFilterContext *ctx)
996 {
997 11 const FieldMatchContext *fm = ctx->priv;
998 11 AVFilterPad pad = {
999 .name = "main",
1000 .type = AVMEDIA_TYPE_VIDEO,
1001 .config_props = config_input,
1002 };
1003 int ret;
1004
1005
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 11 if ((ret = ff_append_inpad(ctx, &pad)) < 0)
1006 ✗ return ret;
1007
1008
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 11 if (fm->ppsrc) {
1009 ✗ pad.name = "clean_src";
1010 ✗ pad.config_props = NULL;
1011 ✗ if ((ret = ff_append_inpad(ctx, &pad)) < 0)
1012 ✗ return ret;
1013 }
1014
1015
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 11 if ((fm->blockx & (fm->blockx - 1)) ||
1016
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 11 (fm->blocky & (fm->blocky - 1))) {
1017 ✗ av_log(ctx, AV_LOG_ERROR, "blockx and blocky settings must be power of two\n");
1018 ✗ return AVERROR(EINVAL);
1019 }
1020
1021
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 11 if (fm->combpel > fm->blockx * fm->blocky) {
1022 ✗ av_log(ctx, AV_LOG_ERROR, "Combed pixel should not be larger than blockx x blocky\n");
1023 ✗ return AVERROR(EINVAL);
1024 }
1025
1026 11 return 0;
1027 }
1028
1029 11 static av_cold void fieldmatch_uninit(AVFilterContext *ctx)
1030 {
1031 11 FieldMatchContext *fm = ctx->priv;
1032
1033
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 11 if (fm->prv != fm->src)
1034 5 av_frame_free(&fm->prv);
1035
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 11 if (fm->nxt != fm->src)
1036 5 av_frame_free(&fm->nxt);
1037
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 11 if (fm->prv2 != fm->src2)
1038 ✗ av_frame_free(&fm->prv2);
1039
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 11 if (fm->nxt2 != fm->src2)
1040 ✗ av_frame_free(&fm->nxt2);
1041 11 av_frame_free(&fm->src);
1042 11 av_frame_free(&fm->src2);
1043 11 av_freep(&fm->map_data[0]);
1044 11 av_freep(&fm->cmask_data[0]);
1045 11 av_freep(&fm->tbuffer);
1046 11 av_freep(&fm->c_array);
1047 11 }
1048
1049 5 static int config_output(AVFilterLink *outlink)
1050 {
1051 5 FilterLink *outl = ff_filter_link(outlink);
1052 5 AVFilterContext *ctx = outlink->src;
1053 5 FieldMatchContext *fm = ctx->priv;
1054 5 const AVFilterLink *inlink =
1055
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 5 ctx->inputs[fm->ppsrc ? INPUT_CLEANSRC : INPUT_MAIN];
1056
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 5 FilterLink *inl = ff_filter_link(ctx->inputs[fm->ppsrc ? INPUT_CLEANSRC : INPUT_MAIN]);
1057 5 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
1058
1059 5 fm->bpc = (desc->comp[0].depth + 7) / 8;
1060 5 outlink->time_base = inlink->time_base;
1061 5 outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
1062 5 outl->frame_rate = inl->frame_rate;
1063 5 outlink->w = inlink->w;
1064 5 outlink->h = inlink->h;
1065 5 return 0;
1066 }
1067
1068 static const AVFilterPad fieldmatch_outputs[] = {
1069 {
1070 .name = "default",
1071 .type = AVMEDIA_TYPE_VIDEO,
1072 .config_props = config_output,
1073 },
1074 };
1075
1076 const AVFilter ff_vf_fieldmatch = {
1077 .name = "fieldmatch",
1078 .description = NULL_IF_CONFIG_SMALL("Field matching for inverse telecine."),
1079 .priv_size = sizeof(FieldMatchContext),
1080 .init = fieldmatch_init,
1081 .activate = activate,
1082 .uninit = fieldmatch_uninit,
1083 .inputs = NULL,
1084 FILTER_OUTPUTS(fieldmatch_outputs),
1085 FILTER_QUERY_FUNC2(query_formats),
1086 .priv_class = &fieldmatch_class,
1087 .flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
1088 };
1089