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1 | /* |
2 | * Copyright (C) 2006-2011 Michael Niedermayer <michaelni@gmx.at> | |
3 | * 2010 James Darnley <james.darnley@gmail.com> | |
4 | * | |
5 | * FFmpeg is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU Lesser General Public | |
7 | * License as published by the Free Software Foundation; either | |
8 | * version 2.1 of the License, or (at your option) any later version. | |
9 | * | |
10 | * FFmpeg is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with FFmpeg; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | */ | |
19 | ||
20 | #include "libavutil/avassert.h" | |
21 | #include "libavutil/cpu.h" | |
22 | #include "libavutil/common.h" | |
23 | #include "libavutil/opt.h" | |
24 | #include "libavutil/pixdesc.h" | |
25 | #include "libavutil/imgutils.h" | |
26 | #include "avfilter.h" | |
27 | #include "formats.h" | |
28 | #include "internal.h" | |
29 | #include "video.h" | |
30 | #include "yadif.h" | |
31 | ||
32 | typedef struct ThreadData { | |
33 | AVFrame *frame; | |
34 | int plane; | |
35 | int w, h; | |
36 | int parity; | |
37 | int tff; | |
38 | } ThreadData; | |
39 | ||
40 | #define CHECK(j)\ | |
41 | { int score = FFABS(cur[mrefs - 1 + (j)] - cur[prefs - 1 - (j)])\ | |
42 | + FFABS(cur[mrefs +(j)] - cur[prefs -(j)])\ | |
43 | + FFABS(cur[mrefs + 1 + (j)] - cur[prefs + 1 - (j)]);\ | |
44 | if (score < spatial_score) {\ | |
45 | spatial_score= score;\ | |
46 | spatial_pred= (cur[mrefs +(j)] + cur[prefs -(j)])>>1;\ | |
47 | ||
48 | /* The is_not_edge argument here controls when the code will enter a branch | |
49 | * which reads up to and including x-3 and x+3. */ | |
50 | ||
51 | #define FILTER(start, end, is_not_edge) \ | |
52 | for (x = start; x < end; x++) { \ | |
53 | int c = cur[mrefs]; \ | |
54 | int d = (prev2[0] + next2[0])>>1; \ | |
55 | int e = cur[prefs]; \ | |
56 | int temporal_diff0 = FFABS(prev2[0] - next2[0]); \ | |
57 | int temporal_diff1 =(FFABS(prev[mrefs] - c) + FFABS(prev[prefs] - e) )>>1; \ | |
58 | int temporal_diff2 =(FFABS(next[mrefs] - c) + FFABS(next[prefs] - e) )>>1; \ | |
59 | int diff = FFMAX3(temporal_diff0 >> 1, temporal_diff1, temporal_diff2); \ | |
60 | int spatial_pred = (c+e) >> 1; \ | |
61 | \ | |
62 | if (is_not_edge) {\ | |
63 | int spatial_score = FFABS(cur[mrefs - 1] - cur[prefs - 1]) + FFABS(c-e) \ | |
64 | + FFABS(cur[mrefs + 1] - cur[prefs + 1]) - 1; \ | |
65 | CHECK(-1) CHECK(-2) }} }} \ | |
66 | CHECK( 1) CHECK( 2) }} }} \ | |
67 | }\ | |
68 | \ | |
69 | if (!(mode&2)) { \ | |
70 | int b = (prev2[2 * mrefs] + next2[2 * mrefs])>>1; \ | |
71 | int f = (prev2[2 * prefs] + next2[2 * prefs])>>1; \ | |
72 | int max = FFMAX3(d - e, d - c, FFMIN(b - c, f - e)); \ | |
73 | int min = FFMIN3(d - e, d - c, FFMAX(b - c, f - e)); \ | |
74 | \ | |
75 | diff = FFMAX3(diff, min, -max); \ | |
76 | } \ | |
77 | \ | |
78 | if (spatial_pred > d + diff) \ | |
79 | spatial_pred = d + diff; \ | |
80 | else if (spatial_pred < d - diff) \ | |
81 | spatial_pred = d - diff; \ | |
82 | \ | |
83 | dst[0] = spatial_pred; \ | |
84 | \ | |
85 | dst++; \ | |
86 | cur++; \ | |
87 | prev++; \ | |
88 | next++; \ | |
89 | prev2++; \ | |
90 | next2++; \ | |
91 | } | |
92 | ||
93 | static void filter_line_c(void *dst1, | |
94 | void *prev1, void *cur1, void *next1, | |
95 | int w, int prefs, int mrefs, int parity, int mode) | |
96 | { | |
97 | uint8_t *dst = dst1; | |
98 | uint8_t *prev = prev1; | |
99 | uint8_t *cur = cur1; | |
100 | uint8_t *next = next1; | |
101 | int x; | |
102 | uint8_t *prev2 = parity ? prev : cur ; | |
103 | uint8_t *next2 = parity ? cur : next; | |
104 | ||
105 | /* The function is called with the pointers already pointing to data[3] and | |
106 | * with 6 subtracted from the width. This allows the FILTER macro to be | |
107 | * called so that it processes all the pixels normally. A constant value of | |
108 | * true for is_not_edge lets the compiler ignore the if statement. */ | |
109 | FILTER(0, w, 1) | |
110 | } | |
111 | ||
112 | #define MAX_ALIGN 8 | |
113 | static void filter_edges(void *dst1, void *prev1, void *cur1, void *next1, | |
114 | int w, int prefs, int mrefs, int parity, int mode) | |
115 | { | |
116 | uint8_t *dst = dst1; | |
117 | uint8_t *prev = prev1; | |
118 | uint8_t *cur = cur1; | |
119 | uint8_t *next = next1; | |
120 | int x; | |
121 | uint8_t *prev2 = parity ? prev : cur ; | |
122 | uint8_t *next2 = parity ? cur : next; | |
123 | ||
124 | /* Only edge pixels need to be processed here. A constant value of false | |
125 | * for is_not_edge should let the compiler ignore the whole branch. */ | |
126 | FILTER(0, 3, 0) | |
127 | ||
128 | dst = (uint8_t*)dst1 + w - (MAX_ALIGN-1); | |
129 | prev = (uint8_t*)prev1 + w - (MAX_ALIGN-1); | |
130 | cur = (uint8_t*)cur1 + w - (MAX_ALIGN-1); | |
131 | next = (uint8_t*)next1 + w - (MAX_ALIGN-1); | |
132 | prev2 = (uint8_t*)(parity ? prev : cur); | |
133 | next2 = (uint8_t*)(parity ? cur : next); | |
134 | ||
135 | FILTER(w - (MAX_ALIGN-1), w - 3, 1) | |
136 | FILTER(w - 3, w, 0) | |
137 | } | |
138 | ||
139 | ||
140 | static void filter_line_c_16bit(void *dst1, | |
141 | void *prev1, void *cur1, void *next1, | |
142 | int w, int prefs, int mrefs, int parity, | |
143 | int mode) | |
144 | { | |
145 | uint16_t *dst = dst1; | |
146 | uint16_t *prev = prev1; | |
147 | uint16_t *cur = cur1; | |
148 | uint16_t *next = next1; | |
149 | int x; | |
150 | uint16_t *prev2 = parity ? prev : cur ; | |
151 | uint16_t *next2 = parity ? cur : next; | |
152 | mrefs /= 2; | |
153 | prefs /= 2; | |
154 | ||
155 | FILTER(0, w, 1) | |
156 | } | |
157 | ||
158 | static void filter_edges_16bit(void *dst1, void *prev1, void *cur1, void *next1, | |
159 | int w, int prefs, int mrefs, int parity, int mode) | |
160 | { | |
161 | uint16_t *dst = dst1; | |
162 | uint16_t *prev = prev1; | |
163 | uint16_t *cur = cur1; | |
164 | uint16_t *next = next1; | |
165 | int x; | |
166 | uint16_t *prev2 = parity ? prev : cur ; | |
167 | uint16_t *next2 = parity ? cur : next; | |
168 | mrefs /= 2; | |
169 | prefs /= 2; | |
170 | ||
171 | FILTER(0, 3, 0) | |
172 | ||
173 | dst = (uint16_t*)dst1 + w - (MAX_ALIGN/2-1); | |
174 | prev = (uint16_t*)prev1 + w - (MAX_ALIGN/2-1); | |
175 | cur = (uint16_t*)cur1 + w - (MAX_ALIGN/2-1); | |
176 | next = (uint16_t*)next1 + w - (MAX_ALIGN/2-1); | |
177 | prev2 = (uint16_t*)(parity ? prev : cur); | |
178 | next2 = (uint16_t*)(parity ? cur : next); | |
179 | ||
180 | FILTER(w - (MAX_ALIGN/2-1), w - 3, 1) | |
181 | FILTER(w - 3, w, 0) | |
182 | } | |
183 | ||
184 | static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) | |
185 | { | |
186 | YADIFContext *s = ctx->priv; | |
187 | ThreadData *td = arg; | |
188 | int refs = s->cur->linesize[td->plane]; | |
189 | int df = (s->csp->comp[td->plane].depth_minus1 + 8) / 8; | |
190 | int pix_3 = 3 * df; | |
191 | int slice_start = (td->h * jobnr ) / nb_jobs; | |
192 | int slice_end = (td->h * (jobnr+1)) / nb_jobs; | |
193 | int y; | |
194 | ||
195 | /* filtering reads 3 pixels to the left/right; to avoid invalid reads, | |
196 | * we need to call the c variant which avoids this for border pixels | |
197 | */ | |
198 | for (y = slice_start; y < slice_end; y++) { | |
199 | if ((y ^ td->parity) & 1) { | |
200 | uint8_t *prev = &s->prev->data[td->plane][y * refs]; | |
201 | uint8_t *cur = &s->cur ->data[td->plane][y * refs]; | |
202 | uint8_t *next = &s->next->data[td->plane][y * refs]; | |
203 | uint8_t *dst = &td->frame->data[td->plane][y * td->frame->linesize[td->plane]]; | |
204 | int mode = y == 1 || y + 2 == td->h ? 2 : s->mode; | |
205 | s->filter_line(dst + pix_3, prev + pix_3, cur + pix_3, | |
206 | next + pix_3, td->w - (3 + MAX_ALIGN/df-1), | |
207 | y + 1 < td->h ? refs : -refs, | |
208 | y ? -refs : refs, | |
209 | td->parity ^ td->tff, mode); | |
210 | s->filter_edges(dst, prev, cur, next, td->w, | |
211 | y + 1 < td->h ? refs : -refs, | |
212 | y ? -refs : refs, | |
213 | td->parity ^ td->tff, mode); | |
214 | } else { | |
215 | memcpy(&td->frame->data[td->plane][y * td->frame->linesize[td->plane]], | |
216 | &s->cur->data[td->plane][y * refs], td->w * df); | |
217 | } | |
218 | } | |
219 | return 0; | |
220 | } | |
221 | ||
222 | static void filter(AVFilterContext *ctx, AVFrame *dstpic, | |
223 | int parity, int tff) | |
224 | { | |
225 | YADIFContext *yadif = ctx->priv; | |
226 | ThreadData td = { .frame = dstpic, .parity = parity, .tff = tff }; | |
227 | int i; | |
228 | ||
229 | for (i = 0; i < yadif->csp->nb_components; i++) { | |
230 | int w = dstpic->width; | |
231 | int h = dstpic->height; | |
232 | ||
233 | if (i == 1 || i == 2) { | |
234 | w = FF_CEIL_RSHIFT(w, yadif->csp->log2_chroma_w); | |
235 | h = FF_CEIL_RSHIFT(h, yadif->csp->log2_chroma_h); | |
236 | } | |
237 | ||
238 | ||
239 | td.w = w; | |
240 | td.h = h; | |
241 | td.plane = i; | |
242 | ||
243 | ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(h, ctx->graph->nb_threads)); | |
244 | } | |
245 | ||
246 | emms_c(); | |
247 | } | |
248 | ||
249 | static int return_frame(AVFilterContext *ctx, int is_second) | |
250 | { | |
251 | YADIFContext *yadif = ctx->priv; | |
252 | AVFilterLink *link = ctx->outputs[0]; | |
253 | int tff, ret; | |
254 | ||
255 | if (yadif->parity == -1) { | |
256 | tff = yadif->cur->interlaced_frame ? | |
257 | yadif->cur->top_field_first : 1; | |
258 | } else { | |
259 | tff = yadif->parity ^ 1; | |
260 | } | |
261 | ||
262 | if (is_second) { | |
263 | yadif->out = ff_get_video_buffer(link, link->w, link->h); | |
264 | if (!yadif->out) | |
265 | return AVERROR(ENOMEM); | |
266 | ||
267 | av_frame_copy_props(yadif->out, yadif->cur); | |
268 | yadif->out->interlaced_frame = 0; | |
269 | } | |
270 | ||
271 | filter(ctx, yadif->out, tff ^ !is_second, tff); | |
272 | ||
273 | if (is_second) { | |
274 | int64_t cur_pts = yadif->cur->pts; | |
275 | int64_t next_pts = yadif->next->pts; | |
276 | ||
277 | if (next_pts != AV_NOPTS_VALUE && cur_pts != AV_NOPTS_VALUE) { | |
278 | yadif->out->pts = cur_pts + next_pts; | |
279 | } else { | |
280 | yadif->out->pts = AV_NOPTS_VALUE; | |
281 | } | |
282 | } | |
283 | ret = ff_filter_frame(ctx->outputs[0], yadif->out); | |
284 | ||
285 | yadif->frame_pending = (yadif->mode&1) && !is_second; | |
286 | return ret; | |
287 | } | |
288 | ||
289 | static int checkstride(YADIFContext *yadif, const AVFrame *a, const AVFrame *b) | |
290 | { | |
291 | int i; | |
292 | for (i = 0; i < yadif->csp->nb_components; i++) | |
293 | if (a->linesize[i] != b->linesize[i]) | |
294 | return 1; | |
295 | return 0; | |
296 | } | |
297 | ||
298 | static void fixstride(AVFilterLink *link, AVFrame *f) | |
299 | { | |
300 | AVFrame *dst = ff_default_get_video_buffer(link, f->width, f->height); | |
301 | if(!dst) | |
302 | return; | |
303 | av_frame_copy_props(dst, f); | |
304 | av_image_copy(dst->data, dst->linesize, | |
305 | (const uint8_t **)f->data, f->linesize, | |
306 | dst->format, dst->width, dst->height); | |
307 | av_frame_unref(f); | |
308 | av_frame_move_ref(f, dst); | |
309 | av_frame_free(&dst); | |
310 | } | |
311 | ||
312 | static int filter_frame(AVFilterLink *link, AVFrame *frame) | |
313 | { | |
314 | AVFilterContext *ctx = link->dst; | |
315 | YADIFContext *yadif = ctx->priv; | |
316 | ||
317 | av_assert0(frame); | |
318 | ||
319 | if (yadif->frame_pending) | |
320 | return_frame(ctx, 1); | |
321 | ||
322 | if (yadif->prev) | |
323 | av_frame_free(&yadif->prev); | |
324 | yadif->prev = yadif->cur; | |
325 | yadif->cur = yadif->next; | |
326 | yadif->next = frame; | |
327 | ||
328 | if (!yadif->cur && | |
329 | !(yadif->cur = av_frame_clone(yadif->next))) | |
330 | return AVERROR(ENOMEM); | |
331 | ||
332 | if (checkstride(yadif, yadif->next, yadif->cur)) { | |
333 | av_log(ctx, AV_LOG_VERBOSE, "Reallocating frame due to differing stride\n"); | |
334 | fixstride(link, yadif->next); | |
335 | } | |
336 | if (checkstride(yadif, yadif->next, yadif->cur)) | |
337 | fixstride(link, yadif->cur); | |
338 | if (yadif->prev && checkstride(yadif, yadif->next, yadif->prev)) | |
339 | fixstride(link, yadif->prev); | |
340 | if (checkstride(yadif, yadif->next, yadif->cur) || (yadif->prev && checkstride(yadif, yadif->next, yadif->prev))) { | |
341 | av_log(ctx, AV_LOG_ERROR, "Failed to reallocate frame\n"); | |
342 | return -1; | |
343 | } | |
344 | ||
345 | if ((yadif->deint && !yadif->cur->interlaced_frame) || ctx->is_disabled) { | |
346 | yadif->out = av_frame_clone(yadif->cur); | |
347 | if (!yadif->out) | |
348 | return AVERROR(ENOMEM); | |
349 | ||
350 | av_frame_free(&yadif->prev); | |
351 | if (yadif->out->pts != AV_NOPTS_VALUE) | |
352 | yadif->out->pts *= 2; | |
353 | return ff_filter_frame(ctx->outputs[0], yadif->out); | |
354 | } | |
355 | ||
356 | if (!yadif->prev) | |
357 | return 0; | |
358 | ||
359 | yadif->out = ff_get_video_buffer(ctx->outputs[0], link->w, link->h); | |
360 | if (!yadif->out) | |
361 | return AVERROR(ENOMEM); | |
362 | ||
363 | av_frame_copy_props(yadif->out, yadif->cur); | |
364 | yadif->out->interlaced_frame = 0; | |
365 | ||
366 | if (yadif->out->pts != AV_NOPTS_VALUE) | |
367 | yadif->out->pts *= 2; | |
368 | ||
369 | return return_frame(ctx, 0); | |
370 | } | |
371 | ||
372 | static int request_frame(AVFilterLink *link) | |
373 | { | |
374 | AVFilterContext *ctx = link->src; | |
375 | YADIFContext *yadif = ctx->priv; | |
376 | ||
377 | if (yadif->frame_pending) { | |
378 | return_frame(ctx, 1); | |
379 | return 0; | |
380 | } | |
381 | ||
382 | do { | |
383 | int ret; | |
384 | ||
385 | if (yadif->eof) | |
386 | return AVERROR_EOF; | |
387 | ||
388 | ret = ff_request_frame(link->src->inputs[0]); | |
389 | ||
390 | if (ret == AVERROR_EOF && yadif->cur) { | |
391 | AVFrame *next = av_frame_clone(yadif->next); | |
392 | ||
393 | if (!next) | |
394 | return AVERROR(ENOMEM); | |
395 | ||
396 | next->pts = yadif->next->pts * 2 - yadif->cur->pts; | |
397 | ||
398 | filter_frame(link->src->inputs[0], next); | |
399 | yadif->eof = 1; | |
400 | } else if (ret < 0) { | |
401 | return ret; | |
402 | } | |
403 | } while (!yadif->prev); | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
408 | static av_cold void uninit(AVFilterContext *ctx) | |
409 | { | |
410 | YADIFContext *yadif = ctx->priv; | |
411 | ||
412 | av_frame_free(&yadif->prev); | |
413 | av_frame_free(&yadif->cur ); | |
414 | av_frame_free(&yadif->next); | |
415 | } | |
416 | ||
417 | static int query_formats(AVFilterContext *ctx) | |
418 | { | |
419 | static const enum AVPixelFormat pix_fmts[] = { | |
420 | AV_PIX_FMT_YUV420P, | |
421 | AV_PIX_FMT_YUV422P, | |
422 | AV_PIX_FMT_YUV444P, | |
423 | AV_PIX_FMT_YUV410P, | |
424 | AV_PIX_FMT_YUV411P, | |
425 | AV_PIX_FMT_GRAY8, | |
426 | AV_PIX_FMT_YUVJ420P, | |
427 | AV_PIX_FMT_YUVJ422P, | |
428 | AV_PIX_FMT_YUVJ444P, | |
429 | AV_PIX_FMT_GRAY16, | |
430 | AV_PIX_FMT_YUV440P, | |
431 | AV_PIX_FMT_YUVJ440P, | |
432 | AV_PIX_FMT_YUV420P9, | |
433 | AV_PIX_FMT_YUV422P9, | |
434 | AV_PIX_FMT_YUV444P9, | |
435 | AV_PIX_FMT_YUV420P10, | |
436 | AV_PIX_FMT_YUV422P10, | |
437 | AV_PIX_FMT_YUV444P10, | |
438 | AV_PIX_FMT_YUV420P12, | |
439 | AV_PIX_FMT_YUV422P12, | |
440 | AV_PIX_FMT_YUV444P12, | |
441 | AV_PIX_FMT_YUV420P14, | |
442 | AV_PIX_FMT_YUV422P14, | |
443 | AV_PIX_FMT_YUV444P14, | |
444 | AV_PIX_FMT_YUV420P16, | |
445 | AV_PIX_FMT_YUV422P16, | |
446 | AV_PIX_FMT_YUV444P16, | |
447 | AV_PIX_FMT_YUVA420P, | |
448 | AV_PIX_FMT_YUVA422P, | |
449 | AV_PIX_FMT_YUVA444P, | |
450 | AV_PIX_FMT_GBRP, | |
451 | AV_PIX_FMT_GBRAP, | |
452 | AV_PIX_FMT_NONE | |
453 | }; | |
454 | ||
455 | ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
460 | static int config_props(AVFilterLink *link) | |
461 | { | |
462 | AVFilterContext *ctx = link->src; | |
463 | YADIFContext *s = link->src->priv; | |
464 | ||
465 | link->time_base.num = link->src->inputs[0]->time_base.num; | |
466 | link->time_base.den = link->src->inputs[0]->time_base.den * 2; | |
467 | link->w = link->src->inputs[0]->w; | |
468 | link->h = link->src->inputs[0]->h; | |
469 | ||
470 | if(s->mode&1) | |
471 | link->frame_rate = av_mul_q(link->src->inputs[0]->frame_rate, (AVRational){2,1}); | |
472 | ||
473 | if (link->w < 3 || link->h < 3) { | |
474 | av_log(ctx, AV_LOG_ERROR, "Video of less than 3 columns or lines is not supported\n"); | |
475 | return AVERROR(EINVAL); | |
476 | } | |
477 | ||
478 | s->csp = av_pix_fmt_desc_get(link->format); | |
479 | if (s->csp->comp[0].depth_minus1 / 8 == 1) { | |
480 | s->filter_line = filter_line_c_16bit; | |
481 | s->filter_edges = filter_edges_16bit; | |
482 | } else { | |
483 | s->filter_line = filter_line_c; | |
484 | s->filter_edges = filter_edges; | |
485 | } | |
486 | ||
487 | if (ARCH_X86) | |
488 | ff_yadif_init_x86(s); | |
489 | ||
490 | return 0; | |
491 | } | |
492 | ||
493 | ||
494 | #define OFFSET(x) offsetof(YADIFContext, x) | |
495 | #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM | |
496 | ||
497 | #define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, INT_MIN, INT_MAX, FLAGS, unit } | |
498 | ||
499 | static const AVOption yadif_options[] = { | |
500 | { "mode", "specify the interlacing mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=YADIF_MODE_SEND_FRAME}, 0, 3, FLAGS, "mode"}, | |
501 | CONST("send_frame", "send one frame for each frame", YADIF_MODE_SEND_FRAME, "mode"), | |
502 | CONST("send_field", "send one frame for each field", YADIF_MODE_SEND_FIELD, "mode"), | |
503 | CONST("send_frame_nospatial", "send one frame for each frame, but skip spatial interlacing check", YADIF_MODE_SEND_FRAME_NOSPATIAL, "mode"), | |
504 | CONST("send_field_nospatial", "send one frame for each field, but skip spatial interlacing check", YADIF_MODE_SEND_FIELD_NOSPATIAL, "mode"), | |
505 | ||
506 | { "parity", "specify the assumed picture field parity", OFFSET(parity), AV_OPT_TYPE_INT, {.i64=YADIF_PARITY_AUTO}, -1, 1, FLAGS, "parity" }, | |
507 | CONST("tff", "assume top field first", YADIF_PARITY_TFF, "parity"), | |
508 | CONST("bff", "assume bottom field first", YADIF_PARITY_BFF, "parity"), | |
509 | CONST("auto", "auto detect parity", YADIF_PARITY_AUTO, "parity"), | |
510 | ||
511 | { "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=YADIF_DEINT_ALL}, 0, 1, FLAGS, "deint" }, | |
512 | CONST("all", "deinterlace all frames", YADIF_DEINT_ALL, "deint"), | |
513 | CONST("interlaced", "only deinterlace frames marked as interlaced", YADIF_DEINT_INTERLACED, "deint"), | |
514 | ||
515 | { NULL } | |
516 | }; | |
517 | ||
518 | AVFILTER_DEFINE_CLASS(yadif); | |
519 | ||
520 | static const AVFilterPad avfilter_vf_yadif_inputs[] = { | |
521 | { | |
522 | .name = "default", | |
523 | .type = AVMEDIA_TYPE_VIDEO, | |
524 | .filter_frame = filter_frame, | |
525 | }, | |
526 | { NULL } | |
527 | }; | |
528 | ||
529 | static const AVFilterPad avfilter_vf_yadif_outputs[] = { | |
530 | { | |
531 | .name = "default", | |
532 | .type = AVMEDIA_TYPE_VIDEO, | |
533 | .request_frame = request_frame, | |
534 | .config_props = config_props, | |
535 | }, | |
536 | { NULL } | |
537 | }; | |
538 | ||
539 | AVFilter ff_vf_yadif = { | |
540 | .name = "yadif", | |
541 | .description = NULL_IF_CONFIG_SMALL("Deinterlace the input image."), | |
542 | .priv_size = sizeof(YADIFContext), | |
543 | .priv_class = &yadif_class, | |
544 | .uninit = uninit, | |
545 | .query_formats = query_formats, | |
546 | .inputs = avfilter_vf_yadif_inputs, | |
547 | .outputs = avfilter_vf_yadif_outputs, | |
548 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, | |
549 | }; |