1 /*
2 * Copyright (c) 2020 Paul B Mahol
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/imgutils.h"
22 #include "libavutil/eval.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/pixfmt.h"
25 #include "avfilter.h"
26 #include "formats.h"
27 #include "internal.h"
28 #include "filters.h"
29 #include "video.h"
30
31 enum XFadeTransitions {
32 CUSTOM = -1,
33 FADE,
34 WIPELEFT,
35 WIPERIGHT,
36 WIPEUP,
37 WIPEDOWN,
38 SLIDELEFT,
39 SLIDERIGHT,
40 SLIDEUP,
41 SLIDEDOWN,
42 CIRCLECROP,
43 RECTCROP,
44 DISTANCE,
45 FADEBLACK,
46 FADEWHITE,
47 RADIAL,
48 SMOOTHLEFT,
49 SMOOTHRIGHT,
50 SMOOTHUP,
51 SMOOTHDOWN,
52 CIRCLEOPEN,
53 CIRCLECLOSE,
54 VERTOPEN,
55 VERTCLOSE,
56 HORZOPEN,
57 HORZCLOSE,
58 DISSOLVE,
59 PIXELIZE,
60 DIAGTL,
61 DIAGTR,
62 DIAGBL,
63 DIAGBR,
64 HLSLICE,
65 HRSLICE,
66 VUSLICE,
67 VDSLICE,
68 HBLUR,
69 FADEGRAYS,
70 WIPETL,
71 WIPETR,
72 WIPEBL,
73 WIPEBR,
74 SQUEEZEH,
75 SQUEEZEV,
76 NB_TRANSITIONS,
77 };
78
79 typedef struct XFadeContext {
80 const AVClass *class;
81
82 int transition;
83 int64_t duration;
84 int64_t offset;
85 char *custom_str;
86
87 int nb_planes;
88 int depth;
89 int is_rgb;
90
91 int64_t duration_pts;
92 int64_t offset_pts;
93 int64_t first_pts;
94 int64_t last_pts;
95 int64_t pts;
96 int xfade_is_over;
97 int need_second;
98 int eof[2];
99 AVFrame *xf[2];
100 int max_value;
101 uint16_t black[4];
102 uint16_t white[4];
103
104 void (*transitionf)(AVFilterContext *ctx, const AVFrame *a, const AVFrame *b, AVFrame *out, float progress,
105 int slice_start, int slice_end, int jobnr);
106
107 AVExpr *e;
108 } XFadeContext;
109
110 static const char *const var_names[] = { "X", "Y", "W", "H", "A", "B", "PLANE", "P", NULL };
111 enum { VAR_X, VAR_Y, VAR_W, VAR_H, VAR_A, VAR_B, VAR_PLANE, VAR_PROGRESS, VAR_VARS_NB };
112
113 typedef struct ThreadData {
114 const AVFrame *xf[2];
115 AVFrame *out;
116 float progress;
117 } ThreadData;
118
query_formats(AVFilterContext * ctx)119 static int query_formats(AVFilterContext *ctx)
120 {
121 static const enum AVPixelFormat pix_fmts[] = {
122 AV_PIX_FMT_YUVA444P,
123 AV_PIX_FMT_YUVJ444P,
124 AV_PIX_FMT_YUV444P,
125 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GRAY8,
126 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_GBRP9,
127 AV_PIX_FMT_YUV444P10,
128 AV_PIX_FMT_YUVA444P10,
129 AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GRAY10,
130 AV_PIX_FMT_YUV444P12,
131 AV_PIX_FMT_YUVA444P12,
132 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GRAY12,
133 AV_PIX_FMT_YUV444P14, AV_PIX_FMT_GBRP14,
134 AV_PIX_FMT_YUV444P16,
135 AV_PIX_FMT_YUVA444P16,
136 AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16, AV_PIX_FMT_GRAY16,
137 AV_PIX_FMT_NONE
138 };
139
140 AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
141 if (!fmts_list)
142 return AVERROR(ENOMEM);
143 return ff_set_common_formats(ctx, fmts_list);
144 }
145
uninit(AVFilterContext * ctx)146 static av_cold void uninit(AVFilterContext *ctx)
147 {
148 XFadeContext *s = ctx->priv;
149
150 av_expr_free(s->e);
151 }
152
153 #define OFFSET(x) offsetof(XFadeContext, x)
154 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
155
156 static const AVOption xfade_options[] = {
157 { "transition", "set cross fade transition", OFFSET(transition), AV_OPT_TYPE_INT, {.i64=FADE}, -1, NB_TRANSITIONS-1, FLAGS, "transition" },
158 { "custom", "custom transition", 0, AV_OPT_TYPE_CONST, {.i64=CUSTOM}, 0, 0, FLAGS, "transition" },
159 { "fade", "fade transition", 0, AV_OPT_TYPE_CONST, {.i64=FADE}, 0, 0, FLAGS, "transition" },
160 { "wipeleft", "wipe left transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPELEFT}, 0, 0, FLAGS, "transition" },
161 { "wiperight", "wipe right transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPERIGHT}, 0, 0, FLAGS, "transition" },
162 { "wipeup", "wipe up transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEUP}, 0, 0, FLAGS, "transition" },
163 { "wipedown", "wipe down transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEDOWN}, 0, 0, FLAGS, "transition" },
164 { "slideleft", "slide left transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDELEFT}, 0, 0, FLAGS, "transition" },
165 { "slideright", "slide right transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDERIGHT}, 0, 0, FLAGS, "transition" },
166 { "slideup", "slide up transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDEUP}, 0, 0, FLAGS, "transition" },
167 { "slidedown", "slide down transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDEDOWN}, 0, 0, FLAGS, "transition" },
168 { "circlecrop", "circle crop transition", 0, AV_OPT_TYPE_CONST, {.i64=CIRCLECROP}, 0, 0, FLAGS, "transition" },
169 { "rectcrop", "rect crop transition", 0, AV_OPT_TYPE_CONST, {.i64=RECTCROP}, 0, 0, FLAGS, "transition" },
170 { "distance", "distance transition", 0, AV_OPT_TYPE_CONST, {.i64=DISTANCE}, 0, 0, FLAGS, "transition" },
171 { "fadeblack", "fadeblack transition", 0, AV_OPT_TYPE_CONST, {.i64=FADEBLACK}, 0, 0, FLAGS, "transition" },
172 { "fadewhite", "fadewhite transition", 0, AV_OPT_TYPE_CONST, {.i64=FADEWHITE}, 0, 0, FLAGS, "transition" },
173 { "radial", "radial transition", 0, AV_OPT_TYPE_CONST, {.i64=RADIAL}, 0, 0, FLAGS, "transition" },
174 { "smoothleft", "smoothleft transition", 0, AV_OPT_TYPE_CONST, {.i64=SMOOTHLEFT}, 0, 0, FLAGS, "transition" },
175 { "smoothright","smoothright transition", 0, AV_OPT_TYPE_CONST, {.i64=SMOOTHRIGHT},0, 0, FLAGS, "transition" },
176 { "smoothup", "smoothup transition", 0, AV_OPT_TYPE_CONST, {.i64=SMOOTHUP}, 0, 0, FLAGS, "transition" },
177 { "smoothdown", "smoothdown transition", 0, AV_OPT_TYPE_CONST, {.i64=SMOOTHDOWN}, 0, 0, FLAGS, "transition" },
178 { "circleopen", "circleopen transition", 0, AV_OPT_TYPE_CONST, {.i64=CIRCLEOPEN}, 0, 0, FLAGS, "transition" },
179 { "circleclose","circleclose transition", 0, AV_OPT_TYPE_CONST, {.i64=CIRCLECLOSE},0, 0, FLAGS, "transition" },
180 { "vertopen", "vert open transition", 0, AV_OPT_TYPE_CONST, {.i64=VERTOPEN}, 0, 0, FLAGS, "transition" },
181 { "vertclose", "vert close transition", 0, AV_OPT_TYPE_CONST, {.i64=VERTCLOSE}, 0, 0, FLAGS, "transition" },
182 { "horzopen", "horz open transition", 0, AV_OPT_TYPE_CONST, {.i64=HORZOPEN}, 0, 0, FLAGS, "transition" },
183 { "horzclose", "horz close transition", 0, AV_OPT_TYPE_CONST, {.i64=HORZCLOSE}, 0, 0, FLAGS, "transition" },
184 { "dissolve", "dissolve transition", 0, AV_OPT_TYPE_CONST, {.i64=DISSOLVE}, 0, 0, FLAGS, "transition" },
185 { "pixelize", "pixelize transition", 0, AV_OPT_TYPE_CONST, {.i64=PIXELIZE}, 0, 0, FLAGS, "transition" },
186 { "diagtl", "diag tl transition", 0, AV_OPT_TYPE_CONST, {.i64=DIAGTL}, 0, 0, FLAGS, "transition" },
187 { "diagtr", "diag tr transition", 0, AV_OPT_TYPE_CONST, {.i64=DIAGTR}, 0, 0, FLAGS, "transition" },
188 { "diagbl", "diag bl transition", 0, AV_OPT_TYPE_CONST, {.i64=DIAGBL}, 0, 0, FLAGS, "transition" },
189 { "diagbr", "diag br transition", 0, AV_OPT_TYPE_CONST, {.i64=DIAGBR}, 0, 0, FLAGS, "transition" },
190 { "hlslice", "hl slice transition", 0, AV_OPT_TYPE_CONST, {.i64=HLSLICE}, 0, 0, FLAGS, "transition" },
191 { "hrslice", "hr slice transition", 0, AV_OPT_TYPE_CONST, {.i64=HRSLICE}, 0, 0, FLAGS, "transition" },
192 { "vuslice", "vu slice transition", 0, AV_OPT_TYPE_CONST, {.i64=VUSLICE}, 0, 0, FLAGS, "transition" },
193 { "vdslice", "vd slice transition", 0, AV_OPT_TYPE_CONST, {.i64=VDSLICE}, 0, 0, FLAGS, "transition" },
194 { "hblur", "hblur transition", 0, AV_OPT_TYPE_CONST, {.i64=HBLUR}, 0, 0, FLAGS, "transition" },
195 { "fadegrays", "fadegrays transition", 0, AV_OPT_TYPE_CONST, {.i64=FADEGRAYS}, 0, 0, FLAGS, "transition" },
196 { "wipetl", "wipe tl transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPETL}, 0, 0, FLAGS, "transition" },
197 { "wipetr", "wipe tr transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPETR}, 0, 0, FLAGS, "transition" },
198 { "wipebl", "wipe bl transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEBL}, 0, 0, FLAGS, "transition" },
199 { "wipebr", "wipe br transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEBR}, 0, 0, FLAGS, "transition" },
200 { "squeezeh", "squeeze h transition", 0, AV_OPT_TYPE_CONST, {.i64=SQUEEZEH}, 0, 0, FLAGS, "transition" },
201 { "squeezev", "squeeze v transition", 0, AV_OPT_TYPE_CONST, {.i64=SQUEEZEV}, 0, 0, FLAGS, "transition" },
202 { "duration", "set cross fade duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=1000000}, 0, 60000000, FLAGS },
203 { "offset", "set cross fade start relative to first input stream", OFFSET(offset), AV_OPT_TYPE_DURATION, {.i64=0}, INT64_MIN, INT64_MAX, FLAGS },
204 { "expr", "set expression for custom transition", OFFSET(custom_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
205 { NULL }
206 };
207
208 AVFILTER_DEFINE_CLASS(xfade);
209
210 #define CUSTOM_TRANSITION(name, type, div) \
211 static void custom##name##_transition(AVFilterContext *ctx, \
212 const AVFrame *a, const AVFrame *b, AVFrame *out, \
213 float progress, \
214 int slice_start, int slice_end, int jobnr) \
215 { \
216 XFadeContext *s = ctx->priv; \
217 const int height = slice_end - slice_start; \
218 \
219 double values[VAR_VARS_NB]; \
220 values[VAR_W] = out->width; \
221 values[VAR_H] = out->height; \
222 values[VAR_PROGRESS] = progress; \
223 \
224 for (int p = 0; p < s->nb_planes; p++) { \
225 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
226 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
227 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
228 \
229 values[VAR_PLANE] = p; \
230 \
231 for (int y = 0; y < height; y++) { \
232 values[VAR_Y] = slice_start + y; \
233 for (int x = 0; x < out->width; x++) { \
234 values[VAR_X] = x; \
235 values[VAR_A] = xf0[x]; \
236 values[VAR_B] = xf1[x]; \
237 dst[x] = av_expr_eval(s->e, values, s); \
238 } \
239 \
240 dst += out->linesize[p] / div; \
241 xf0 += a->linesize[p] / div; \
242 xf1 += b->linesize[p] / div; \
243 } \
244 } \
245 }
246
247 CUSTOM_TRANSITION(8, uint8_t, 1)
248 CUSTOM_TRANSITION(16, uint16_t, 2)
249
mix(float a,float b,float mix)250 static inline float mix(float a, float b, float mix)
251 {
252 return a * mix + b * (1.f - mix);
253 }
254
fract(float a)255 static inline float fract(float a)
256 {
257 return a - floorf(a);
258 }
259
smoothstep(float edge0,float edge1,float x)260 static inline float smoothstep(float edge0, float edge1, float x)
261 {
262 float t;
263
264 t = av_clipf((x - edge0) / (edge1 - edge0), 0.f, 1.f);
265
266 return t * t * (3.f - 2.f * t);
267 }
268
269 #define FADE_TRANSITION(name, type, div) \
270 static void fade##name##_transition(AVFilterContext *ctx, \
271 const AVFrame *a, const AVFrame *b, AVFrame *out, \
272 float progress, \
273 int slice_start, int slice_end, int jobnr) \
274 { \
275 XFadeContext *s = ctx->priv; \
276 const int height = slice_end - slice_start; \
277 \
278 for (int p = 0; p < s->nb_planes; p++) { \
279 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
280 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
281 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
282 \
283 for (int y = 0; y < height; y++) { \
284 for (int x = 0; x < out->width; x++) { \
285 dst[x] = mix(xf0[x], xf1[x], progress); \
286 } \
287 \
288 dst += out->linesize[p] / div; \
289 xf0 += a->linesize[p] / div; \
290 xf1 += b->linesize[p] / div; \
291 } \
292 } \
293 }
294
295 FADE_TRANSITION(8, uint8_t, 1)
296 FADE_TRANSITION(16, uint16_t, 2)
297
298 #define WIPELEFT_TRANSITION(name, type, div) \
299 static void wipeleft##name##_transition(AVFilterContext *ctx, \
300 const AVFrame *a, const AVFrame *b, AVFrame *out, \
301 float progress, \
302 int slice_start, int slice_end, int jobnr) \
303 { \
304 XFadeContext *s = ctx->priv; \
305 const int height = slice_end - slice_start; \
306 const int z = out->width * progress; \
307 \
308 for (int p = 0; p < s->nb_planes; p++) { \
309 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
310 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
311 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
312 \
313 for (int y = 0; y < height; y++) { \
314 for (int x = 0; x < out->width; x++) { \
315 dst[x] = x > z ? xf1[x] : xf0[x]; \
316 } \
317 \
318 dst += out->linesize[p] / div; \
319 xf0 += a->linesize[p] / div; \
320 xf1 += b->linesize[p] / div; \
321 } \
322 } \
323 }
324
325 WIPELEFT_TRANSITION(8, uint8_t, 1)
326 WIPELEFT_TRANSITION(16, uint16_t, 2)
327
328 #define WIPERIGHT_TRANSITION(name, type, div) \
329 static void wiperight##name##_transition(AVFilterContext *ctx, \
330 const AVFrame *a, const AVFrame *b, AVFrame *out, \
331 float progress, \
332 int slice_start, int slice_end, int jobnr) \
333 { \
334 XFadeContext *s = ctx->priv; \
335 const int height = slice_end - slice_start; \
336 const int z = out->width * (1.f - progress); \
337 \
338 for (int p = 0; p < s->nb_planes; p++) { \
339 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
340 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
341 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
342 \
343 for (int y = 0; y < height; y++) { \
344 for (int x = 0; x < out->width; x++) { \
345 dst[x] = x > z ? xf0[x] : xf1[x]; \
346 } \
347 \
348 dst += out->linesize[p] / div; \
349 xf0 += a->linesize[p] / div; \
350 xf1 += b->linesize[p] / div; \
351 } \
352 } \
353 }
354
355 WIPERIGHT_TRANSITION(8, uint8_t, 1)
356 WIPERIGHT_TRANSITION(16, uint16_t, 2)
357
358 #define WIPEUP_TRANSITION(name, type, div) \
359 static void wipeup##name##_transition(AVFilterContext *ctx, \
360 const AVFrame *a, const AVFrame *b, AVFrame *out, \
361 float progress, \
362 int slice_start, int slice_end, int jobnr) \
363 { \
364 XFadeContext *s = ctx->priv; \
365 const int height = slice_end - slice_start; \
366 const int z = out->height * progress; \
367 \
368 for (int p = 0; p < s->nb_planes; p++) { \
369 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
370 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
371 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
372 \
373 for (int y = 0; y < height; y++) { \
374 for (int x = 0; x < out->width; x++) { \
375 dst[x] = slice_start + y > z ? xf1[x] : xf0[x]; \
376 } \
377 \
378 dst += out->linesize[p] / div; \
379 xf0 += a->linesize[p] / div; \
380 xf1 += b->linesize[p] / div; \
381 } \
382 } \
383 }
384
385 WIPEUP_TRANSITION(8, uint8_t, 1)
386 WIPEUP_TRANSITION(16, uint16_t, 2)
387
388 #define WIPEDOWN_TRANSITION(name, type, div) \
389 static void wipedown##name##_transition(AVFilterContext *ctx, \
390 const AVFrame *a, const AVFrame *b, AVFrame *out, \
391 float progress, \
392 int slice_start, int slice_end, int jobnr) \
393 { \
394 XFadeContext *s = ctx->priv; \
395 const int height = slice_end - slice_start; \
396 const int z = out->height * (1.f - progress); \
397 \
398 for (int p = 0; p < s->nb_planes; p++) { \
399 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
400 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
401 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
402 \
403 for (int y = 0; y < height; y++) { \
404 for (int x = 0; x < out->width; x++) { \
405 dst[x] = slice_start + y > z ? xf0[x] : xf1[x]; \
406 } \
407 \
408 dst += out->linesize[p] / div; \
409 xf0 += a->linesize[p] / div; \
410 xf1 += b->linesize[p] / div; \
411 } \
412 } \
413 }
414
415 WIPEDOWN_TRANSITION(8, uint8_t, 1)
416 WIPEDOWN_TRANSITION(16, uint16_t, 2)
417
418 #define SLIDELEFT_TRANSITION(name, type, div) \
419 static void slideleft##name##_transition(AVFilterContext *ctx, \
420 const AVFrame *a, const AVFrame *b, AVFrame *out, \
421 float progress, \
422 int slice_start, int slice_end, int jobnr) \
423 { \
424 XFadeContext *s = ctx->priv; \
425 const int height = slice_end - slice_start; \
426 const int width = out->width; \
427 const int z = -progress * width; \
428 \
429 for (int p = 0; p < s->nb_planes; p++) { \
430 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
431 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
432 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
433 \
434 for (int y = 0; y < height; y++) { \
435 for (int x = 0; x < width; x++) { \
436 const int zx = z + x; \
437 const int zz = zx % width + width * (zx < 0); \
438 dst[x] = (zx > 0) && (zx < width) ? xf1[zz] : xf0[zz]; \
439 } \
440 \
441 dst += out->linesize[p] / div; \
442 xf0 += a->linesize[p] / div; \
443 xf1 += b->linesize[p] / div; \
444 } \
445 } \
446 }
447
448 SLIDELEFT_TRANSITION(8, uint8_t, 1)
449 SLIDELEFT_TRANSITION(16, uint16_t, 2)
450
451 #define SLIDERIGHT_TRANSITION(name, type, div) \
452 static void slideright##name##_transition(AVFilterContext *ctx, \
453 const AVFrame *a, const AVFrame *b, AVFrame *out, \
454 float progress, \
455 int slice_start, int slice_end, int jobnr) \
456 { \
457 XFadeContext *s = ctx->priv; \
458 const int height = slice_end - slice_start; \
459 const int width = out->width; \
460 const int z = progress * width; \
461 \
462 for (int p = 0; p < s->nb_planes; p++) { \
463 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
464 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
465 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
466 \
467 for (int y = 0; y < height; y++) { \
468 for (int x = 0; x < out->width; x++) { \
469 const int zx = z + x; \
470 const int zz = zx % width + width * (zx < 0); \
471 dst[x] = (zx > 0) && (zx < width) ? xf1[zz] : xf0[zz]; \
472 } \
473 \
474 dst += out->linesize[p] / div; \
475 xf0 += a->linesize[p] / div; \
476 xf1 += b->linesize[p] / div; \
477 } \
478 } \
479 }
480
481 SLIDERIGHT_TRANSITION(8, uint8_t, 1)
482 SLIDERIGHT_TRANSITION(16, uint16_t, 2)
483
484 #define SLIDEUP_TRANSITION(name, type, div) \
485 static void slideup##name##_transition(AVFilterContext *ctx, \
486 const AVFrame *a, const AVFrame *b, AVFrame *out, \
487 float progress, \
488 int slice_start, int slice_end, int jobnr) \
489 { \
490 XFadeContext *s = ctx->priv; \
491 const int height = out->height; \
492 const int z = -progress * height; \
493 \
494 for (int p = 0; p < s->nb_planes; p++) { \
495 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
496 \
497 for (int y = slice_start; y < slice_end; y++) { \
498 const int zy = z + y; \
499 const int zz = zy % height + height * (zy < 0); \
500 const type *xf0 = (const type *)(a->data[p] + zz * a->linesize[p]); \
501 const type *xf1 = (const type *)(b->data[p] + zz * b->linesize[p]); \
502 \
503 for (int x = 0; x < out->width; x++) { \
504 dst[x] = (zy > 0) && (zy < height) ? xf1[x] : xf0[x]; \
505 } \
506 \
507 dst += out->linesize[p] / div; \
508 } \
509 } \
510 }
511
512 SLIDEUP_TRANSITION(8, uint8_t, 1)
513 SLIDEUP_TRANSITION(16, uint16_t, 2)
514
515 #define SLIDEDOWN_TRANSITION(name, type, div) \
516 static void slidedown##name##_transition(AVFilterContext *ctx, \
517 const AVFrame *a, const AVFrame *b, AVFrame *out, \
518 float progress, \
519 int slice_start, int slice_end, int jobnr) \
520 { \
521 XFadeContext *s = ctx->priv; \
522 const int height = out->height; \
523 const int z = progress * height; \
524 \
525 for (int p = 0; p < s->nb_planes; p++) { \
526 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
527 \
528 for (int y = slice_start; y < slice_end; y++) { \
529 const int zy = z + y; \
530 const int zz = zy % height + height * (zy < 0); \
531 const type *xf0 = (const type *)(a->data[p] + zz * a->linesize[p]); \
532 const type *xf1 = (const type *)(b->data[p] + zz * b->linesize[p]); \
533 \
534 for (int x = 0; x < out->width; x++) { \
535 dst[x] = (zy > 0) && (zy < height) ? xf1[x] : xf0[x]; \
536 } \
537 \
538 dst += out->linesize[p] / div; \
539 } \
540 } \
541 }
542
543 SLIDEDOWN_TRANSITION(8, uint8_t, 1)
544 SLIDEDOWN_TRANSITION(16, uint16_t, 2)
545
546 #define CIRCLECROP_TRANSITION(name, type, div) \
547 static void circlecrop##name##_transition(AVFilterContext *ctx, \
548 const AVFrame *a, const AVFrame *b, AVFrame *out, \
549 float progress, \
550 int slice_start, int slice_end, int jobnr) \
551 { \
552 XFadeContext *s = ctx->priv; \
553 const int width = out->width; \
554 const int height = out->height; \
555 float z = powf(2.f * fabsf(progress - 0.5f), 3.f) * hypotf(width/2, height/2); \
556 \
557 for (int p = 0; p < s->nb_planes; p++) { \
558 const int bg = s->black[p]; \
559 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
560 \
561 for (int y = slice_start; y < slice_end; y++) { \
562 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
563 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
564 \
565 for (int x = 0; x < width; x++) { \
566 float dist = hypotf(x - width / 2, y - height / 2); \
567 int val = progress < 0.5f ? xf1[x] : xf0[x]; \
568 dst[x] = (z < dist) ? bg : val; \
569 } \
570 \
571 dst += out->linesize[p] / div; \
572 } \
573 } \
574 }
575
576 CIRCLECROP_TRANSITION(8, uint8_t, 1)
577 CIRCLECROP_TRANSITION(16, uint16_t, 2)
578
579 #define RECTCROP_TRANSITION(name, type, div) \
580 static void rectcrop##name##_transition(AVFilterContext *ctx, \
581 const AVFrame *a, const AVFrame *b, AVFrame *out, \
582 float progress, \
583 int slice_start, int slice_end, int jobnr) \
584 { \
585 XFadeContext *s = ctx->priv; \
586 const int width = out->width; \
587 const int height = out->height; \
588 int zh = fabsf(progress - 0.5f) * height; \
589 int zw = fabsf(progress - 0.5f) * width; \
590 \
591 for (int p = 0; p < s->nb_planes; p++) { \
592 const int bg = s->black[p]; \
593 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
594 \
595 for (int y = slice_start; y < slice_end; y++) { \
596 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
597 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
598 \
599 for (int x = 0; x < width; x++) { \
600 int dist = FFABS(x - width / 2) < zw && \
601 FFABS(y - height / 2) < zh; \
602 int val = progress < 0.5f ? xf1[x] : xf0[x]; \
603 dst[x] = !dist ? bg : val; \
604 } \
605 \
606 dst += out->linesize[p] / div; \
607 } \
608 } \
609 }
610
611 RECTCROP_TRANSITION(8, uint8_t, 1)
612 RECTCROP_TRANSITION(16, uint16_t, 2)
613
614 #define DISTANCE_TRANSITION(name, type, div) \
615 static void distance##name##_transition(AVFilterContext *ctx, \
616 const AVFrame *a, const AVFrame *b, AVFrame *out, \
617 float progress, \
618 int slice_start, int slice_end, int jobnr) \
619 { \
620 XFadeContext *s = ctx->priv; \
621 const int width = out->width; \
622 const float max = s->max_value; \
623 \
624 for (int y = slice_start; y < slice_end; y++) { \
625 for (int x = 0; x < width; x++) { \
626 float dist = 0.f; \
627 for (int p = 0; p < s->nb_planes; p++) { \
628 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
629 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
630 \
631 dist += (xf0[x] / max - xf1[x] / max) * \
632 (xf0[x] / max - xf1[x] / max); \
633 } \
634 \
635 dist = sqrtf(dist) <= progress; \
636 for (int p = 0; p < s->nb_planes; p++) { \
637 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
638 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
639 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
640 dst[x] = mix(mix(xf0[x], xf1[x], dist), xf1[x], progress); \
641 } \
642 } \
643 } \
644 }
645
646 DISTANCE_TRANSITION(8, uint8_t, 1)
647 DISTANCE_TRANSITION(16, uint16_t, 2)
648
649 #define FADEBLACK_TRANSITION(name, type, div) \
650 static void fadeblack##name##_transition(AVFilterContext *ctx, \
651 const AVFrame *a, const AVFrame *b, AVFrame *out, \
652 float progress, \
653 int slice_start, int slice_end, int jobnr) \
654 { \
655 XFadeContext *s = ctx->priv; \
656 const int height = slice_end - slice_start; \
657 const float phase = 0.2f; \
658 \
659 for (int p = 0; p < s->nb_planes; p++) { \
660 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
661 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
662 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
663 const int bg = s->black[p]; \
664 \
665 for (int y = 0; y < height; y++) { \
666 for (int x = 0; x < out->width; x++) { \
667 dst[x] = mix(mix(xf0[x], bg, smoothstep(1.f-phase, 1.f, progress)), \
668 mix(bg, xf1[x], smoothstep(phase, 1.f, progress)), \
669 progress); \
670 } \
671 \
672 dst += out->linesize[p] / div; \
673 xf0 += a->linesize[p] / div; \
674 xf1 += b->linesize[p] / div; \
675 } \
676 } \
677 }
678
679 FADEBLACK_TRANSITION(8, uint8_t, 1)
680 FADEBLACK_TRANSITION(16, uint16_t, 2)
681
682 #define FADEWHITE_TRANSITION(name, type, div) \
683 static void fadewhite##name##_transition(AVFilterContext *ctx, \
684 const AVFrame *a, const AVFrame *b, AVFrame *out, \
685 float progress, \
686 int slice_start, int slice_end, int jobnr) \
687 { \
688 XFadeContext *s = ctx->priv; \
689 const int height = slice_end - slice_start; \
690 const float phase = 0.2f; \
691 \
692 for (int p = 0; p < s->nb_planes; p++) { \
693 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
694 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
695 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
696 const int bg = s->white[p]; \
697 \
698 for (int y = 0; y < height; y++) { \
699 for (int x = 0; x < out->width; x++) { \
700 dst[x] = mix(mix(xf0[x], bg, smoothstep(1.f-phase, 1.f, progress)), \
701 mix(bg, xf1[x], smoothstep(phase, 1.f, progress)), \
702 progress); \
703 } \
704 \
705 dst += out->linesize[p] / div; \
706 xf0 += a->linesize[p] / div; \
707 xf1 += b->linesize[p] / div; \
708 } \
709 } \
710 }
711
712 FADEWHITE_TRANSITION(8, uint8_t, 1)
713 FADEWHITE_TRANSITION(16, uint16_t, 2)
714
715 #define RADIAL_TRANSITION(name, type, div) \
716 static void radial##name##_transition(AVFilterContext *ctx, \
717 const AVFrame *a, const AVFrame *b, AVFrame *out, \
718 float progress, \
719 int slice_start, int slice_end, int jobnr) \
720 { \
721 XFadeContext *s = ctx->priv; \
722 const int width = out->width; \
723 const int height = out->height; \
724 \
725 for (int y = slice_start; y < slice_end; y++) { \
726 for (int x = 0; x < width; x++) { \
727 const float smooth = atan2f(x - width / 2, y - height / 2) - \
728 (progress - 0.5f) * (M_PI * 2.5f); \
729 for (int p = 0; p < s->nb_planes; p++) { \
730 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
731 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
732 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
733 \
734 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
735 } \
736 } \
737 } \
738 }
739
740 RADIAL_TRANSITION(8, uint8_t, 1)
741 RADIAL_TRANSITION(16, uint16_t, 2)
742
743 #define SMOOTHLEFT_TRANSITION(name, type, div) \
744 static void smoothleft##name##_transition(AVFilterContext *ctx, \
745 const AVFrame *a, const AVFrame *b, AVFrame *out, \
746 float progress, \
747 int slice_start, int slice_end, int jobnr) \
748 { \
749 XFadeContext *s = ctx->priv; \
750 const int width = out->width; \
751 const float w = width; \
752 \
753 for (int y = slice_start; y < slice_end; y++) { \
754 for (int x = 0; x < width; x++) { \
755 const float smooth = 1.f + x / w - progress * 2.f; \
756 \
757 for (int p = 0; p < s->nb_planes; p++) { \
758 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
759 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
760 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
761 \
762 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
763 } \
764 } \
765 } \
766 }
767
768 SMOOTHLEFT_TRANSITION(8, uint8_t, 1)
769 SMOOTHLEFT_TRANSITION(16, uint16_t, 2)
770
771 #define SMOOTHRIGHT_TRANSITION(name, type, div) \
772 static void smoothright##name##_transition(AVFilterContext *ctx, \
773 const AVFrame *a, const AVFrame *b, AVFrame *out, \
774 float progress, \
775 int slice_start, int slice_end, int jobnr) \
776 { \
777 XFadeContext *s = ctx->priv; \
778 const int width = out->width; \
779 const float w = width; \
780 \
781 for (int y = slice_start; y < slice_end; y++) { \
782 for (int x = 0; x < width; x++) { \
783 const float smooth = 1.f + (w - 1 - x) / w - progress * 2.f; \
784 \
785 for (int p = 0; p < s->nb_planes; p++) { \
786 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
787 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
788 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
789 \
790 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
791 } \
792 } \
793 } \
794 }
795
796 SMOOTHRIGHT_TRANSITION(8, uint8_t, 1)
797 SMOOTHRIGHT_TRANSITION(16, uint16_t, 2)
798
799 #define SMOOTHUP_TRANSITION(name, type, div) \
800 static void smoothup##name##_transition(AVFilterContext *ctx, \
801 const AVFrame *a, const AVFrame *b, AVFrame *out, \
802 float progress, \
803 int slice_start, int slice_end, int jobnr) \
804 { \
805 XFadeContext *s = ctx->priv; \
806 const int width = out->width; \
807 const float h = out->height; \
808 \
809 for (int y = slice_start; y < slice_end; y++) { \
810 const float smooth = 1.f + y / h - progress * 2.f; \
811 for (int x = 0; x < width; x++) { \
812 for (int p = 0; p < s->nb_planes; p++) { \
813 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
814 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
815 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
816 \
817 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
818 } \
819 } \
820 } \
821 }
822
823 SMOOTHUP_TRANSITION(8, uint8_t, 1)
824 SMOOTHUP_TRANSITION(16, uint16_t, 2)
825
826 #define SMOOTHDOWN_TRANSITION(name, type, div) \
827 static void smoothdown##name##_transition(AVFilterContext *ctx, \
828 const AVFrame *a, const AVFrame *b, AVFrame *out, \
829 float progress, \
830 int slice_start, int slice_end, int jobnr) \
831 { \
832 XFadeContext *s = ctx->priv; \
833 const int width = out->width; \
834 const float h = out->height; \
835 \
836 for (int y = slice_start; y < slice_end; y++) { \
837 const float smooth = 1.f + (h - 1 - y) / h - progress * 2.f; \
838 for (int x = 0; x < width; x++) { \
839 for (int p = 0; p < s->nb_planes; p++) { \
840 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
841 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
842 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
843 \
844 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
845 } \
846 } \
847 } \
848 }
849
850 SMOOTHDOWN_TRANSITION(8, uint8_t, 1)
851 SMOOTHDOWN_TRANSITION(16, uint16_t, 2)
852
853 #define CIRCLEOPEN_TRANSITION(name, type, div) \
854 static void circleopen##name##_transition(AVFilterContext *ctx, \
855 const AVFrame *a, const AVFrame *b, AVFrame *out, \
856 float progress, \
857 int slice_start, int slice_end, int jobnr) \
858 { \
859 XFadeContext *s = ctx->priv; \
860 const int width = out->width; \
861 const int height = out->height; \
862 const float z = hypotf(width / 2, height / 2); \
863 const float p = (progress - 0.5f) * 3.f; \
864 \
865 for (int y = slice_start; y < slice_end; y++) { \
866 for (int x = 0; x < width; x++) { \
867 const float smooth = hypotf(x - width / 2, y - height / 2) / z + p; \
868 for (int p = 0; p < s->nb_planes; p++) { \
869 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
870 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
871 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
872 \
873 dst[x] = mix(xf0[x], xf1[x], smoothstep(0.f, 1.f, smooth)); \
874 } \
875 } \
876 } \
877 }
878
879 CIRCLEOPEN_TRANSITION(8, uint8_t, 1)
880 CIRCLEOPEN_TRANSITION(16, uint16_t, 2)
881
882 #define CIRCLECLOSE_TRANSITION(name, type, div) \
883 static void circleclose##name##_transition(AVFilterContext *ctx, \
884 const AVFrame *a, const AVFrame *b, AVFrame *out, \
885 float progress, \
886 int slice_start, int slice_end, int jobnr) \
887 { \
888 XFadeContext *s = ctx->priv; \
889 const int width = out->width; \
890 const int height = out->height; \
891 const float z = hypotf(width / 2, height / 2); \
892 const float p = (1.f - progress - 0.5f) * 3.f; \
893 \
894 for (int y = slice_start; y < slice_end; y++) { \
895 for (int x = 0; x < width; x++) { \
896 const float smooth = hypotf(x - width / 2, y - height / 2) / z + p; \
897 for (int p = 0; p < s->nb_planes; p++) { \
898 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
899 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
900 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
901 \
902 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
903 } \
904 } \
905 } \
906 }
907
908 CIRCLECLOSE_TRANSITION(8, uint8_t, 1)
909 CIRCLECLOSE_TRANSITION(16, uint16_t, 2)
910
911 #define VERTOPEN_TRANSITION(name, type, div) \
912 static void vertopen##name##_transition(AVFilterContext *ctx, \
913 const AVFrame *a, const AVFrame *b, AVFrame *out, \
914 float progress, \
915 int slice_start, int slice_end, int jobnr) \
916 { \
917 XFadeContext *s = ctx->priv; \
918 const int width = out->width; \
919 const float w2 = out->width / 2; \
920 \
921 for (int y = slice_start; y < slice_end; y++) { \
922 for (int x = 0; x < width; x++) { \
923 const float smooth = 2.f - fabsf((x - w2) / w2) - progress * 2.f; \
924 for (int p = 0; p < s->nb_planes; p++) { \
925 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
926 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
927 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
928 \
929 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
930 } \
931 } \
932 } \
933 }
934
935 VERTOPEN_TRANSITION(8, uint8_t, 1)
936 VERTOPEN_TRANSITION(16, uint16_t, 2)
937
938 #define VERTCLOSE_TRANSITION(name, type, div) \
939 static void vertclose##name##_transition(AVFilterContext *ctx, \
940 const AVFrame *a, const AVFrame *b, AVFrame *out, \
941 float progress, \
942 int slice_start, int slice_end, int jobnr) \
943 { \
944 XFadeContext *s = ctx->priv; \
945 const int width = out->width; \
946 const float w2 = out->width / 2; \
947 \
948 for (int y = slice_start; y < slice_end; y++) { \
949 for (int x = 0; x < width; x++) { \
950 const float smooth = 1.f + fabsf((x - w2) / w2) - progress * 2.f; \
951 for (int p = 0; p < s->nb_planes; p++) { \
952 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
953 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
954 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
955 \
956 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
957 } \
958 } \
959 } \
960 }
961
962 VERTCLOSE_TRANSITION(8, uint8_t, 1)
963 VERTCLOSE_TRANSITION(16, uint16_t, 2)
964
965 #define HORZOPEN_TRANSITION(name, type, div) \
966 static void horzopen##name##_transition(AVFilterContext *ctx, \
967 const AVFrame *a, const AVFrame *b, AVFrame *out, \
968 float progress, \
969 int slice_start, int slice_end, int jobnr) \
970 { \
971 XFadeContext *s = ctx->priv; \
972 const int width = out->width; \
973 const float h2 = out->height / 2; \
974 \
975 for (int y = slice_start; y < slice_end; y++) { \
976 const float smooth = 2.f - fabsf((y - h2) / h2) - progress * 2.f; \
977 for (int x = 0; x < width; x++) { \
978 for (int p = 0; p < s->nb_planes; p++) { \
979 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
980 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
981 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
982 \
983 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
984 } \
985 } \
986 } \
987 }
988
989 HORZOPEN_TRANSITION(8, uint8_t, 1)
990 HORZOPEN_TRANSITION(16, uint16_t, 2)
991
992 #define HORZCLOSE_TRANSITION(name, type, div) \
993 static void horzclose##name##_transition(AVFilterContext *ctx, \
994 const AVFrame *a, const AVFrame *b, AVFrame *out, \
995 float progress, \
996 int slice_start, int slice_end, int jobnr) \
997 { \
998 XFadeContext *s = ctx->priv; \
999 const int width = out->width; \
1000 const float h2 = out->height / 2; \
1001 \
1002 for (int y = slice_start; y < slice_end; y++) { \
1003 const float smooth = 1.f + fabsf((y - h2) / h2) - progress * 2.f; \
1004 for (int x = 0; x < width; x++) { \
1005 for (int p = 0; p < s->nb_planes; p++) { \
1006 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1007 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1008 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1009 \
1010 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
1011 } \
1012 } \
1013 } \
1014 }
1015
1016 HORZCLOSE_TRANSITION(8, uint8_t, 1)
1017 HORZCLOSE_TRANSITION(16, uint16_t, 2)
1018
frand(int x,int y)1019 static float frand(int x, int y)
1020 {
1021 const float r = sinf(x * 12.9898f + y * 78.233f) * 43758.545f;
1022
1023 return r - floorf(r);
1024 }
1025
1026 #define DISSOLVE_TRANSITION(name, type, div) \
1027 static void dissolve##name##_transition(AVFilterContext *ctx, \
1028 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1029 float progress, \
1030 int slice_start, int slice_end, int jobnr) \
1031 { \
1032 XFadeContext *s = ctx->priv; \
1033 const int width = out->width; \
1034 \
1035 for (int y = slice_start; y < slice_end; y++) { \
1036 for (int x = 0; x < width; x++) { \
1037 const float smooth = frand(x, y) * 2.f + progress * 2.f - 1.5f; \
1038 for (int p = 0; p < s->nb_planes; p++) { \
1039 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1040 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1041 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1042 \
1043 dst[x] = smooth >= 0.5f ? xf0[x] : xf1[x]; \
1044 } \
1045 } \
1046 } \
1047 }
1048
1049 DISSOLVE_TRANSITION(8, uint8_t, 1)
1050 DISSOLVE_TRANSITION(16, uint16_t, 2)
1051
1052 #define PIXELIZE_TRANSITION(name, type, div) \
1053 static void pixelize##name##_transition(AVFilterContext *ctx, \
1054 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1055 float progress, \
1056 int slice_start, int slice_end, int jobnr) \
1057 { \
1058 XFadeContext *s = ctx->priv; \
1059 const int w = out->width; \
1060 const int h = out->height; \
1061 const float d = fminf(progress, 1.f - progress); \
1062 const float dist = ceilf(d * 50.f) / 50.f; \
1063 const float sqx = 2.f * dist * FFMIN(w, h) / 20.f; \
1064 const float sqy = 2.f * dist * FFMIN(w, h) / 20.f; \
1065 \
1066 for (int y = slice_start; y < slice_end; y++) { \
1067 for (int x = 0; x < w; x++) { \
1068 int sx = dist > 0.f ? FFMIN((floorf(x / sqx) + .5f) * sqx, w - 1) : x; \
1069 int sy = dist > 0.f ? FFMIN((floorf(y / sqy) + .5f) * sqy, h - 1) : y; \
1070 for (int p = 0; p < s->nb_planes; p++) { \
1071 const type *xf0 = (const type *)(a->data[p] + sy * a->linesize[p]); \
1072 const type *xf1 = (const type *)(b->data[p] + sy * b->linesize[p]); \
1073 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1074 \
1075 dst[x] = mix(xf0[sx], xf1[sx], progress); \
1076 } \
1077 } \
1078 } \
1079 }
1080
1081 PIXELIZE_TRANSITION(8, uint8_t, 1)
1082 PIXELIZE_TRANSITION(16, uint16_t, 2)
1083
1084 #define DIAGTL_TRANSITION(name, type, div) \
1085 static void diagtl##name##_transition(AVFilterContext *ctx, \
1086 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1087 float progress, \
1088 int slice_start, int slice_end, int jobnr) \
1089 { \
1090 XFadeContext *s = ctx->priv; \
1091 const int width = out->width; \
1092 const float w = width; \
1093 const float h = out->height; \
1094 \
1095 for (int y = slice_start; y < slice_end; y++) { \
1096 for (int x = 0; x < width; x++) { \
1097 const float smooth = 1.f + x / w * y / h - progress * 2.f; \
1098 \
1099 for (int p = 0; p < s->nb_planes; p++) { \
1100 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1101 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1102 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1103 \
1104 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
1105 } \
1106 } \
1107 } \
1108 }
1109
1110 DIAGTL_TRANSITION(8, uint8_t, 1)
1111 DIAGTL_TRANSITION(16, uint16_t, 2)
1112
1113 #define DIAGTR_TRANSITION(name, type, div) \
1114 static void diagtr##name##_transition(AVFilterContext *ctx, \
1115 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1116 float progress, \
1117 int slice_start, int slice_end, int jobnr) \
1118 { \
1119 XFadeContext *s = ctx->priv; \
1120 const int width = out->width; \
1121 const float w = width; \
1122 const float h = out->height; \
1123 \
1124 for (int y = slice_start; y < slice_end; y++) { \
1125 for (int x = 0; x < width; x++) { \
1126 const float smooth = 1.f + (w - 1 - x) / w * y / h - progress * 2.f; \
1127 \
1128 for (int p = 0; p < s->nb_planes; p++) { \
1129 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1130 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1131 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1132 \
1133 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
1134 } \
1135 } \
1136 } \
1137 }
1138
1139 DIAGTR_TRANSITION(8, uint8_t, 1)
1140 DIAGTR_TRANSITION(16, uint16_t, 2)
1141
1142 #define DIAGBL_TRANSITION(name, type, div) \
1143 static void diagbl##name##_transition(AVFilterContext *ctx, \
1144 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1145 float progress, \
1146 int slice_start, int slice_end, int jobnr) \
1147 { \
1148 XFadeContext *s = ctx->priv; \
1149 const int width = out->width; \
1150 const float w = width; \
1151 const float h = out->height; \
1152 \
1153 for (int y = slice_start; y < slice_end; y++) { \
1154 for (int x = 0; x < width; x++) { \
1155 const float smooth = 1.f + x / w * (h - 1 - y) / h - progress * 2.f; \
1156 \
1157 for (int p = 0; p < s->nb_planes; p++) { \
1158 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1159 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1160 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1161 \
1162 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
1163 } \
1164 } \
1165 } \
1166 }
1167
1168 DIAGBL_TRANSITION(8, uint8_t, 1)
1169 DIAGBL_TRANSITION(16, uint16_t, 2)
1170
1171 #define DIAGBR_TRANSITION(name, type, div) \
1172 static void diagbr##name##_transition(AVFilterContext *ctx, \
1173 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1174 float progress, \
1175 int slice_start, int slice_end, int jobnr) \
1176 { \
1177 XFadeContext *s = ctx->priv; \
1178 const int width = out->width; \
1179 const float w = width; \
1180 const float h = out->height; \
1181 \
1182 for (int y = slice_start; y < slice_end; y++) { \
1183 for (int x = 0; x < width; x++) { \
1184 const float smooth = 1.f + (w - 1 - x) / w * (h - 1 - y) / h - \
1185 progress * 2.f; \
1186 \
1187 for (int p = 0; p < s->nb_planes; p++) { \
1188 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1189 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1190 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1191 \
1192 dst[x] = mix(xf1[x], xf0[x], smoothstep(0.f, 1.f, smooth)); \
1193 } \
1194 } \
1195 } \
1196 }
1197
1198 DIAGBR_TRANSITION(8, uint8_t, 1)
1199 DIAGBR_TRANSITION(16, uint16_t, 2)
1200
1201 #define HLSLICE_TRANSITION(name, type, div) \
1202 static void hlslice##name##_transition(AVFilterContext *ctx, \
1203 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1204 float progress, \
1205 int slice_start, int slice_end, int jobnr) \
1206 { \
1207 XFadeContext *s = ctx->priv; \
1208 const int width = out->width; \
1209 const float w = width; \
1210 \
1211 for (int y = slice_start; y < slice_end; y++) { \
1212 for (int x = 0; x < width; x++) { \
1213 const float smooth = smoothstep(-0.5f, 0.f, x / w - progress * 1.5f); \
1214 const float ss = smooth <= fract(10.f * x / w) ? 0.f : 1.f; \
1215 \
1216 for (int p = 0; p < s->nb_planes; p++) { \
1217 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1218 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1219 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1220 \
1221 dst[x] = mix(xf1[x], xf0[x], ss); \
1222 } \
1223 } \
1224 } \
1225 }
1226
1227 HLSLICE_TRANSITION(8, uint8_t, 1)
1228 HLSLICE_TRANSITION(16, uint16_t, 2)
1229
1230 #define HRSLICE_TRANSITION(name, type, div) \
1231 static void hrslice##name##_transition(AVFilterContext *ctx, \
1232 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1233 float progress, \
1234 int slice_start, int slice_end, int jobnr) \
1235 { \
1236 XFadeContext *s = ctx->priv; \
1237 const int width = out->width; \
1238 const float w = width; \
1239 \
1240 for (int y = slice_start; y < slice_end; y++) { \
1241 for (int x = 0; x < width; x++) { \
1242 const float xx = (w - 1 - x) / w; \
1243 const float smooth = smoothstep(-0.5f, 0.f, xx - progress * 1.5f); \
1244 const float ss = smooth <= fract(10.f * xx) ? 0.f : 1.f; \
1245 \
1246 for (int p = 0; p < s->nb_planes; p++) { \
1247 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1248 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1249 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1250 \
1251 dst[x] = mix(xf1[x], xf0[x], ss); \
1252 } \
1253 } \
1254 } \
1255 }
1256
1257 HRSLICE_TRANSITION(8, uint8_t, 1)
1258 HRSLICE_TRANSITION(16, uint16_t, 2)
1259
1260 #define VUSLICE_TRANSITION(name, type, div) \
1261 static void vuslice##name##_transition(AVFilterContext *ctx, \
1262 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1263 float progress, \
1264 int slice_start, int slice_end, int jobnr) \
1265 { \
1266 XFadeContext *s = ctx->priv; \
1267 const int width = out->width; \
1268 const float h = out->height; \
1269 \
1270 for (int y = slice_start; y < slice_end; y++) { \
1271 const float smooth = smoothstep(-0.5f, 0.f, y / h - progress * 1.5f); \
1272 const float ss = smooth <= fract(10.f * y / h) ? 0.f : 1.f; \
1273 \
1274 for (int x = 0; x < width; x++) { \
1275 for (int p = 0; p < s->nb_planes; p++) { \
1276 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1277 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1278 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1279 \
1280 dst[x] = mix(xf1[x], xf0[x], ss); \
1281 } \
1282 } \
1283 } \
1284 }
1285
1286 VUSLICE_TRANSITION(8, uint8_t, 1)
1287 VUSLICE_TRANSITION(16, uint16_t, 2)
1288
1289 #define VDSLICE_TRANSITION(name, type, div) \
1290 static void vdslice##name##_transition(AVFilterContext *ctx, \
1291 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1292 float progress, \
1293 int slice_start, int slice_end, int jobnr) \
1294 { \
1295 XFadeContext *s = ctx->priv; \
1296 const int width = out->width; \
1297 const float h = out->height; \
1298 \
1299 for (int y = slice_start; y < slice_end; y++) { \
1300 const float yy = (h - 1 - y) / h; \
1301 const float smooth = smoothstep(-0.5f, 0.f, yy - progress * 1.5f); \
1302 const float ss = smooth <= fract(10.f * yy) ? 0.f : 1.f; \
1303 \
1304 for (int x = 0; x < width; x++) { \
1305 for (int p = 0; p < s->nb_planes; p++) { \
1306 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1307 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1308 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1309 \
1310 dst[x] = mix(xf1[x], xf0[x], ss); \
1311 } \
1312 } \
1313 } \
1314 }
1315
1316 VDSLICE_TRANSITION(8, uint8_t, 1)
1317 VDSLICE_TRANSITION(16, uint16_t, 2)
1318
1319 #define HBLUR_TRANSITION(name, type, div) \
1320 static void hblur##name##_transition(AVFilterContext *ctx, \
1321 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1322 float progress, \
1323 int slice_start, int slice_end, int jobnr) \
1324 { \
1325 XFadeContext *s = ctx->priv; \
1326 const int width = out->width; \
1327 const float prog = progress <= 0.5f ? progress * 2.f : (1.f - progress) * 2.f; \
1328 const int size = 1 + (width / 2) * prog; \
1329 \
1330 for (int y = slice_start; y < slice_end; y++) { \
1331 for (int p = 0; p < s->nb_planes; p++) { \
1332 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1333 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1334 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1335 float sum0 = 0.f; \
1336 float sum1 = 0.f; \
1337 float cnt = size; \
1338 \
1339 for (int x = 0; x < size; x++) { \
1340 sum0 += xf0[x]; \
1341 sum1 += xf1[x]; \
1342 } \
1343 \
1344 for (int x = 0; x < width; x++) { \
1345 dst[x] = mix(sum0 / cnt, sum1 / cnt, progress); \
1346 \
1347 if (x + size < width) { \
1348 sum0 += xf0[x + size] - xf0[x]; \
1349 sum1 += xf1[x + size] - xf1[x]; \
1350 } else { \
1351 sum0 -= xf0[x]; \
1352 sum1 -= xf1[x]; \
1353 cnt--; \
1354 } \
1355 } \
1356 } \
1357 } \
1358 }
1359
1360 HBLUR_TRANSITION(8, uint8_t, 1)
1361 HBLUR_TRANSITION(16, uint16_t, 2)
1362
1363 #define FADEGRAYS_TRANSITION(name, type, div) \
1364 static void fadegrays##name##_transition(AVFilterContext *ctx, \
1365 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1366 float progress, \
1367 int slice_start, int slice_end, int jobnr) \
1368 { \
1369 XFadeContext *s = ctx->priv; \
1370 const int width = out->width; \
1371 const int is_rgb = s->is_rgb; \
1372 const int mid = (s->max_value + 1) / 2; \
1373 const float phase = 0.2f; \
1374 \
1375 for (int y = slice_start; y < slice_end; y++) { \
1376 for (int x = 0; x < width; x++) { \
1377 int bg[2][4]; \
1378 if (is_rgb) { \
1379 for (int p = 0; p < s->nb_planes; p++) { \
1380 const type *xf0 = (const type *)(a->data[p] + \
1381 y * a->linesize[p]); \
1382 const type *xf1 = (const type *)(b->data[p] + \
1383 y * b->linesize[p]); \
1384 if (p == 3) { \
1385 bg[0][3] = xf0[x]; \
1386 bg[1][3] = xf1[x]; \
1387 } else { \
1388 bg[0][0] += xf0[x]; \
1389 bg[1][0] += xf1[x]; \
1390 } \
1391 } \
1392 bg[0][0] = bg[0][0] / 3; \
1393 bg[1][0] = bg[1][0] / 3; \
1394 bg[0][1] = bg[0][2] = bg[0][0]; \
1395 bg[1][1] = bg[1][2] = bg[1][0]; \
1396 } else { \
1397 const type *yf0 = (const type *)(a->data[0] + \
1398 y * a->linesize[0]); \
1399 const type *yf1 = (const type *)(b->data[0] + \
1400 y * a->linesize[0]); \
1401 bg[0][0] = yf0[x]; \
1402 bg[1][0] = yf1[x]; \
1403 if (s->nb_planes == 4) { \
1404 const type *af0 = (const type *)(a->data[3] + \
1405 y * a->linesize[3]); \
1406 const type *af1 = (const type *)(b->data[3] + \
1407 y * a->linesize[3]); \
1408 bg[0][3] = af0[x]; \
1409 bg[1][3] = af1[x]; \
1410 } \
1411 bg[0][1] = bg[1][1] = mid; \
1412 bg[0][2] = bg[1][2] = mid; \
1413 } \
1414 \
1415 for (int p = 0; p < s->nb_planes; p++) { \
1416 const type *xf0 = (const type *)(a->data[p] + y * a->linesize[p]); \
1417 const type *xf1 = (const type *)(b->data[p] + y * b->linesize[p]); \
1418 type *dst = (type *)(out->data[p] + y * out->linesize[p]); \
1419 \
1420 dst[x] = mix(mix(xf0[x], bg[0][p], \
1421 smoothstep(1.f-phase, 1.f, progress)), \
1422 mix(bg[1][p], xf1[x], smoothstep(phase, 1.f, progress)), \
1423 progress); \
1424 } \
1425 } \
1426 } \
1427 }
1428
1429 FADEGRAYS_TRANSITION(8, uint8_t, 1)
1430 FADEGRAYS_TRANSITION(16, uint16_t, 2)
1431
1432 #define WIPETL_TRANSITION(name, type, div) \
1433 static void wipetl##name##_transition(AVFilterContext *ctx, \
1434 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1435 float progress, \
1436 int slice_start, int slice_end, int jobnr) \
1437 { \
1438 XFadeContext *s = ctx->priv; \
1439 const int height = slice_end - slice_start; \
1440 const int zw = out->width * progress; \
1441 const int zh = out->height * progress; \
1442 \
1443 for (int p = 0; p < s->nb_planes; p++) { \
1444 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
1445 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
1446 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
1447 \
1448 for (int y = 0; y < height; y++) { \
1449 for (int x = 0; x < out->width; x++) { \
1450 dst[x] = slice_start + y <= zh && \
1451 x <= zw ? xf0[x] : xf1[x]; \
1452 } \
1453 \
1454 dst += out->linesize[p] / div; \
1455 xf0 += a->linesize[p] / div; \
1456 xf1 += b->linesize[p] / div; \
1457 } \
1458 } \
1459 }
1460
1461 WIPETL_TRANSITION(8, uint8_t, 1)
1462 WIPETL_TRANSITION(16, uint16_t, 2)
1463
1464 #define WIPETR_TRANSITION(name, type, div) \
1465 static void wipetr##name##_transition(AVFilterContext *ctx, \
1466 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1467 float progress, \
1468 int slice_start, int slice_end, int jobnr) \
1469 { \
1470 XFadeContext *s = ctx->priv; \
1471 const int height = slice_end - slice_start; \
1472 const int zw = out->width * (1.f - progress); \
1473 const int zh = out->height * progress; \
1474 \
1475 for (int p = 0; p < s->nb_planes; p++) { \
1476 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
1477 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
1478 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
1479 \
1480 for (int y = 0; y < height; y++) { \
1481 for (int x = 0; x < out->width; x++) { \
1482 dst[x] = slice_start + y <= zh && \
1483 x > zw ? xf0[x] : xf1[x]; \
1484 } \
1485 \
1486 dst += out->linesize[p] / div; \
1487 xf0 += a->linesize[p] / div; \
1488 xf1 += b->linesize[p] / div; \
1489 } \
1490 } \
1491 }
1492
1493 WIPETR_TRANSITION(8, uint8_t, 1)
1494 WIPETR_TRANSITION(16, uint16_t, 2)
1495
1496 #define WIPEBL_TRANSITION(name, type, div) \
1497 static void wipebl##name##_transition(AVFilterContext *ctx, \
1498 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1499 float progress, \
1500 int slice_start, int slice_end, int jobnr) \
1501 { \
1502 XFadeContext *s = ctx->priv; \
1503 const int height = slice_end - slice_start; \
1504 const int zw = out->width * progress; \
1505 const int zh = out->height * (1.f - progress); \
1506 \
1507 for (int p = 0; p < s->nb_planes; p++) { \
1508 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
1509 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
1510 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
1511 \
1512 for (int y = 0; y < height; y++) { \
1513 for (int x = 0; x < out->width; x++) { \
1514 dst[x] = slice_start + y > zh && \
1515 x <= zw ? xf0[x] : xf1[x]; \
1516 } \
1517 \
1518 dst += out->linesize[p] / div; \
1519 xf0 += a->linesize[p] / div; \
1520 xf1 += b->linesize[p] / div; \
1521 } \
1522 } \
1523 }
1524
1525 WIPEBL_TRANSITION(8, uint8_t, 1)
1526 WIPEBL_TRANSITION(16, uint16_t, 2)
1527
1528 #define WIPEBR_TRANSITION(name, type, div) \
1529 static void wipebr##name##_transition(AVFilterContext *ctx, \
1530 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1531 float progress, \
1532 int slice_start, int slice_end, int jobnr) \
1533 { \
1534 XFadeContext *s = ctx->priv; \
1535 const int height = slice_end - slice_start; \
1536 const int zh = out->height * (1.f - progress); \
1537 const int zw = out->width * (1.f - progress); \
1538 \
1539 for (int p = 0; p < s->nb_planes; p++) { \
1540 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
1541 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
1542 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
1543 \
1544 for (int y = 0; y < height; y++) { \
1545 for (int x = 0; x < out->width; x++) { \
1546 dst[x] = slice_start + y > zh && \
1547 x > zw ? xf0[x] : xf1[x]; \
1548 } \
1549 \
1550 dst += out->linesize[p] / div; \
1551 xf0 += a->linesize[p] / div; \
1552 xf1 += b->linesize[p] / div; \
1553 } \
1554 } \
1555 }
1556
1557 WIPEBR_TRANSITION(8, uint8_t, 1)
1558 WIPEBR_TRANSITION(16, uint16_t, 2)
1559
1560 #define SQUEEZEH_TRANSITION(name, type, div) \
1561 static void squeezeh##name##_transition(AVFilterContext *ctx, \
1562 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1563 float progress, \
1564 int slice_start, int slice_end, int jobnr) \
1565 { \
1566 XFadeContext *s = ctx->priv; \
1567 const float h = out->height; \
1568 const int height = slice_end - slice_start; \
1569 \
1570 for (int p = 0; p < s->nb_planes; p++) { \
1571 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
1572 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
1573 \
1574 for (int y = 0; y < height; y++) { \
1575 const float z = .5f + ((slice_start + y) / h - .5f) / progress; \
1576 \
1577 if (z < 0.f || z > 1.f) { \
1578 for (int x = 0; x < out->width; x++) \
1579 dst[x] = xf1[x]; \
1580 } else { \
1581 const int yy = lrintf(z * (h - 1.f)); \
1582 const type *xf0 = (const type *)(a->data[p] + yy * a->linesize[p]); \
1583 \
1584 for (int x = 0; x < out->width; x++) \
1585 dst[x] = xf0[x]; \
1586 } \
1587 \
1588 dst += out->linesize[p] / div; \
1589 xf1 += b->linesize[p] / div; \
1590 } \
1591 } \
1592 }
1593
1594 SQUEEZEH_TRANSITION(8, uint8_t, 1)
1595 SQUEEZEH_TRANSITION(16, uint16_t, 2)
1596
1597 #define SQUEEZEV_TRANSITION(name, type, div) \
1598 static void squeezev##name##_transition(AVFilterContext *ctx, \
1599 const AVFrame *a, const AVFrame *b, AVFrame *out, \
1600 float progress, \
1601 int slice_start, int slice_end, int jobnr) \
1602 { \
1603 XFadeContext *s = ctx->priv; \
1604 const float w = out->width; \
1605 const int height = slice_end - slice_start; \
1606 \
1607 for (int p = 0; p < s->nb_planes; p++) { \
1608 const type *xf0 = (const type *)(a->data[p] + slice_start * a->linesize[p]); \
1609 const type *xf1 = (const type *)(b->data[p] + slice_start * b->linesize[p]); \
1610 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
1611 \
1612 for (int y = 0; y < height; y++) { \
1613 for (int x = 0; x < out->width; x++) { \
1614 const float z = .5f + (x / w - .5f) / progress; \
1615 \
1616 if (z < 0.f || z > 1.f) { \
1617 dst[x] = xf1[x]; \
1618 } else { \
1619 const int xx = lrintf(z * (w - 1.f)); \
1620 \
1621 dst[x] = xf0[xx]; \
1622 } \
1623 } \
1624 \
1625 dst += out->linesize[p] / div; \
1626 xf0 += a->linesize[p] / div; \
1627 xf1 += b->linesize[p] / div; \
1628 } \
1629 } \
1630 }
1631
1632 SQUEEZEV_TRANSITION(8, uint8_t, 1)
1633 SQUEEZEV_TRANSITION(16, uint16_t, 2)
1634
getpix(void * priv,double x,double y,int plane,int nb)1635 static inline double getpix(void *priv, double x, double y, int plane, int nb)
1636 {
1637 XFadeContext *s = priv;
1638 AVFrame *in = s->xf[nb];
1639 const uint8_t *src = in->data[FFMIN(plane, s->nb_planes - 1)];
1640 int linesize = in->linesize[FFMIN(plane, s->nb_planes - 1)];
1641 const int w = in->width;
1642 const int h = in->height;
1643
1644 int xi, yi;
1645
1646 xi = av_clipd(x, 0, w - 1);
1647 yi = av_clipd(y, 0, h - 1);
1648
1649 if (s->depth > 8) {
1650 const uint16_t *src16 = (const uint16_t*)src;
1651
1652 linesize /= 2;
1653 return src16[xi + yi * linesize];
1654 } else {
1655 return src[xi + yi * linesize];
1656 }
1657 }
1658
a0(void * priv,double x,double y)1659 static double a0(void *priv, double x, double y) { return getpix(priv, x, y, 0, 0); }
a1(void * priv,double x,double y)1660 static double a1(void *priv, double x, double y) { return getpix(priv, x, y, 1, 0); }
a2(void * priv,double x,double y)1661 static double a2(void *priv, double x, double y) { return getpix(priv, x, y, 2, 0); }
a3(void * priv,double x,double y)1662 static double a3(void *priv, double x, double y) { return getpix(priv, x, y, 3, 0); }
1663
b0(void * priv,double x,double y)1664 static double b0(void *priv, double x, double y) { return getpix(priv, x, y, 0, 1); }
b1(void * priv,double x,double y)1665 static double b1(void *priv, double x, double y) { return getpix(priv, x, y, 1, 1); }
b2(void * priv,double x,double y)1666 static double b2(void *priv, double x, double y) { return getpix(priv, x, y, 2, 1); }
b3(void * priv,double x,double y)1667 static double b3(void *priv, double x, double y) { return getpix(priv, x, y, 3, 1); }
1668
config_output(AVFilterLink * outlink)1669 static int config_output(AVFilterLink *outlink)
1670 {
1671 AVFilterContext *ctx = outlink->src;
1672 AVFilterLink *inlink0 = ctx->inputs[0];
1673 AVFilterLink *inlink1 = ctx->inputs[1];
1674 XFadeContext *s = ctx->priv;
1675 const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink0->format);
1676
1677 if (inlink0->format != inlink1->format) {
1678 av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
1679 return AVERROR(EINVAL);
1680 }
1681 if (inlink0->w != inlink1->w || inlink0->h != inlink1->h) {
1682 av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
1683 "(size %dx%d) do not match the corresponding "
1684 "second input link %s parameters (size %dx%d)\n",
1685 ctx->input_pads[0].name, inlink0->w, inlink0->h,
1686 ctx->input_pads[1].name, inlink1->w, inlink1->h);
1687 return AVERROR(EINVAL);
1688 }
1689
1690 if (inlink0->time_base.num != inlink1->time_base.num ||
1691 inlink0->time_base.den != inlink1->time_base.den) {
1692 av_log(ctx, AV_LOG_ERROR, "First input link %s timebase "
1693 "(%d/%d) do not match the corresponding "
1694 "second input link %s timebase (%d/%d)\n",
1695 ctx->input_pads[0].name, inlink0->time_base.num, inlink0->time_base.den,
1696 ctx->input_pads[1].name, inlink1->time_base.num, inlink1->time_base.den);
1697 return AVERROR(EINVAL);
1698 }
1699
1700 if (!inlink0->frame_rate.num || !inlink0->frame_rate.den) {
1701 av_log(ctx, AV_LOG_ERROR, "The inputs needs to be a constant frame rate; "
1702 "current rate of %d/%d is invalid\n", inlink0->frame_rate.num, inlink0->frame_rate.den);
1703 return AVERROR(EINVAL);
1704 }
1705
1706 if (inlink0->frame_rate.num != inlink1->frame_rate.num ||
1707 inlink0->frame_rate.den != inlink1->frame_rate.den) {
1708 av_log(ctx, AV_LOG_ERROR, "First input link %s frame rate "
1709 "(%d/%d) do not match the corresponding "
1710 "second input link %s frame rate (%d/%d)\n",
1711 ctx->input_pads[0].name, inlink0->frame_rate.num, inlink0->frame_rate.den,
1712 ctx->input_pads[1].name, inlink1->frame_rate.num, inlink1->frame_rate.den);
1713 return AVERROR(EINVAL);
1714 }
1715
1716 outlink->w = inlink0->w;
1717 outlink->h = inlink0->h;
1718 outlink->time_base = inlink0->time_base;
1719 outlink->sample_aspect_ratio = inlink0->sample_aspect_ratio;
1720 outlink->frame_rate = inlink0->frame_rate;
1721
1722 s->depth = pix_desc->comp[0].depth;
1723 s->is_rgb = !!(pix_desc->flags & AV_PIX_FMT_FLAG_RGB);
1724 s->nb_planes = av_pix_fmt_count_planes(inlink0->format);
1725 s->max_value = (1 << s->depth) - 1;
1726 s->black[0] = 0;
1727 s->black[1] = s->black[2] = s->is_rgb ? 0 : s->max_value / 2;
1728 s->black[3] = s->max_value;
1729 s->white[0] = s->white[3] = s->max_value;
1730 s->white[1] = s->white[2] = s->is_rgb ? s->max_value : s->max_value / 2;
1731
1732 s->first_pts = s->last_pts = s->pts = AV_NOPTS_VALUE;
1733
1734 if (s->duration)
1735 s->duration_pts = av_rescale_q(s->duration, AV_TIME_BASE_Q, outlink->time_base);
1736 if (s->offset)
1737 s->offset_pts = av_rescale_q(s->offset, AV_TIME_BASE_Q, outlink->time_base);
1738
1739 switch (s->transition) {
1740 case CUSTOM: s->transitionf = s->depth <= 8 ? custom8_transition : custom16_transition; break;
1741 case FADE: s->transitionf = s->depth <= 8 ? fade8_transition : fade16_transition; break;
1742 case WIPELEFT: s->transitionf = s->depth <= 8 ? wipeleft8_transition : wipeleft16_transition; break;
1743 case WIPERIGHT: s->transitionf = s->depth <= 8 ? wiperight8_transition : wiperight16_transition; break;
1744 case WIPEUP: s->transitionf = s->depth <= 8 ? wipeup8_transition : wipeup16_transition; break;
1745 case WIPEDOWN: s->transitionf = s->depth <= 8 ? wipedown8_transition : wipedown16_transition; break;
1746 case SLIDELEFT: s->transitionf = s->depth <= 8 ? slideleft8_transition : slideleft16_transition; break;
1747 case SLIDERIGHT: s->transitionf = s->depth <= 8 ? slideright8_transition : slideright16_transition; break;
1748 case SLIDEUP: s->transitionf = s->depth <= 8 ? slideup8_transition : slideup16_transition; break;
1749 case SLIDEDOWN: s->transitionf = s->depth <= 8 ? slidedown8_transition : slidedown16_transition; break;
1750 case CIRCLECROP: s->transitionf = s->depth <= 8 ? circlecrop8_transition : circlecrop16_transition; break;
1751 case RECTCROP: s->transitionf = s->depth <= 8 ? rectcrop8_transition : rectcrop16_transition; break;
1752 case DISTANCE: s->transitionf = s->depth <= 8 ? distance8_transition : distance16_transition; break;
1753 case FADEBLACK: s->transitionf = s->depth <= 8 ? fadeblack8_transition : fadeblack16_transition; break;
1754 case FADEWHITE: s->transitionf = s->depth <= 8 ? fadewhite8_transition : fadewhite16_transition; break;
1755 case RADIAL: s->transitionf = s->depth <= 8 ? radial8_transition : radial16_transition; break;
1756 case SMOOTHLEFT: s->transitionf = s->depth <= 8 ? smoothleft8_transition : smoothleft16_transition; break;
1757 case SMOOTHRIGHT:s->transitionf = s->depth <= 8 ? smoothright8_transition: smoothright16_transition;break;
1758 case SMOOTHUP: s->transitionf = s->depth <= 8 ? smoothup8_transition : smoothup16_transition; break;
1759 case SMOOTHDOWN: s->transitionf = s->depth <= 8 ? smoothdown8_transition : smoothdown16_transition; break;
1760 case CIRCLEOPEN: s->transitionf = s->depth <= 8 ? circleopen8_transition : circleopen16_transition; break;
1761 case CIRCLECLOSE:s->transitionf = s->depth <= 8 ? circleclose8_transition: circleclose16_transition;break;
1762 case VERTOPEN: s->transitionf = s->depth <= 8 ? vertopen8_transition : vertopen16_transition; break;
1763 case VERTCLOSE: s->transitionf = s->depth <= 8 ? vertclose8_transition : vertclose16_transition; break;
1764 case HORZOPEN: s->transitionf = s->depth <= 8 ? horzopen8_transition : horzopen16_transition; break;
1765 case HORZCLOSE: s->transitionf = s->depth <= 8 ? horzclose8_transition : horzclose16_transition; break;
1766 case DISSOLVE: s->transitionf = s->depth <= 8 ? dissolve8_transition : dissolve16_transition; break;
1767 case PIXELIZE: s->transitionf = s->depth <= 8 ? pixelize8_transition : pixelize16_transition; break;
1768 case DIAGTL: s->transitionf = s->depth <= 8 ? diagtl8_transition : diagtl16_transition; break;
1769 case DIAGTR: s->transitionf = s->depth <= 8 ? diagtr8_transition : diagtr16_transition; break;
1770 case DIAGBL: s->transitionf = s->depth <= 8 ? diagbl8_transition : diagbl16_transition; break;
1771 case DIAGBR: s->transitionf = s->depth <= 8 ? diagbr8_transition : diagbr16_transition; break;
1772 case HLSLICE: s->transitionf = s->depth <= 8 ? hlslice8_transition : hlslice16_transition; break;
1773 case HRSLICE: s->transitionf = s->depth <= 8 ? hrslice8_transition : hrslice16_transition; break;
1774 case VUSLICE: s->transitionf = s->depth <= 8 ? vuslice8_transition : vuslice16_transition; break;
1775 case VDSLICE: s->transitionf = s->depth <= 8 ? vdslice8_transition : vdslice16_transition; break;
1776 case HBLUR: s->transitionf = s->depth <= 8 ? hblur8_transition : hblur16_transition; break;
1777 case FADEGRAYS: s->transitionf = s->depth <= 8 ? fadegrays8_transition : fadegrays16_transition; break;
1778 case WIPETL: s->transitionf = s->depth <= 8 ? wipetl8_transition : wipetl16_transition; break;
1779 case WIPETR: s->transitionf = s->depth <= 8 ? wipetr8_transition : wipetr16_transition; break;
1780 case WIPEBL: s->transitionf = s->depth <= 8 ? wipebl8_transition : wipebl16_transition; break;
1781 case WIPEBR: s->transitionf = s->depth <= 8 ? wipebr8_transition : wipebr16_transition; break;
1782 case SQUEEZEH: s->transitionf = s->depth <= 8 ? squeezeh8_transition : squeezeh16_transition; break;
1783 case SQUEEZEV: s->transitionf = s->depth <= 8 ? squeezev8_transition : squeezev16_transition; break;
1784 }
1785
1786 if (s->transition == CUSTOM) {
1787 static const char *const func2_names[] = {
1788 "a0", "a1", "a2", "a3",
1789 "b0", "b1", "b2", "b3",
1790 NULL
1791 };
1792 double (*func2[])(void *, double, double) = {
1793 a0, a1, a2, a3,
1794 b0, b1, b2, b3,
1795 NULL };
1796 int ret;
1797
1798 if (!s->custom_str)
1799 return AVERROR(EINVAL);
1800 ret = av_expr_parse(&s->e, s->custom_str, var_names,
1801 NULL, NULL, func2_names, func2, 0, ctx);
1802 if (ret < 0)
1803 return ret;
1804 }
1805
1806 return 0;
1807 }
1808
xfade_slice(AVFilterContext * ctx,void * arg,int jobnr,int nb_jobs)1809 static int xfade_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
1810 {
1811 XFadeContext *s = ctx->priv;
1812 AVFilterLink *outlink = ctx->outputs[0];
1813 ThreadData *td = arg;
1814 int slice_start = (outlink->h * jobnr ) / nb_jobs;
1815 int slice_end = (outlink->h * (jobnr+1)) / nb_jobs;
1816
1817 s->transitionf(ctx, td->xf[0], td->xf[1], td->out, td->progress, slice_start, slice_end, jobnr);
1818
1819 return 0;
1820 }
1821
xfade_frame(AVFilterContext * ctx,AVFrame * a,AVFrame * b)1822 static int xfade_frame(AVFilterContext *ctx, AVFrame *a, AVFrame *b)
1823 {
1824 XFadeContext *s = ctx->priv;
1825 AVFilterLink *outlink = ctx->outputs[0];
1826 float progress = av_clipf(1.f - ((float)(s->pts - s->first_pts - s->offset_pts) / s->duration_pts), 0.f, 1.f);
1827 ThreadData td;
1828 AVFrame *out;
1829
1830 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
1831 if (!out)
1832 return AVERROR(ENOMEM);
1833 av_frame_copy_props(out, a);
1834
1835 td.xf[0] = a, td.xf[1] = b, td.out = out, td.progress = progress;
1836 ctx->internal->execute(ctx, xfade_slice, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
1837
1838 out->pts = s->pts;
1839
1840 return ff_filter_frame(outlink, out);
1841 }
1842
xfade_activate(AVFilterContext * ctx)1843 static int xfade_activate(AVFilterContext *ctx)
1844 {
1845 XFadeContext *s = ctx->priv;
1846 AVFilterLink *outlink = ctx->outputs[0];
1847 AVFrame *in = NULL;
1848 int ret = 0, status;
1849 int64_t pts;
1850
1851 FF_FILTER_FORWARD_STATUS_BACK_ALL(outlink, ctx);
1852
1853 if (s->xfade_is_over) {
1854 if (!s->eof[0]) {
1855 ret = ff_inlink_consume_frame(ctx->inputs[0], &in);
1856 if (ret > 0)
1857 av_frame_free(&in);
1858 }
1859 ret = ff_inlink_consume_frame(ctx->inputs[1], &in);
1860 if (ret < 0) {
1861 return ret;
1862 } else if (ret > 0) {
1863 in->pts = (in->pts - s->last_pts) + s->pts;
1864 return ff_filter_frame(outlink, in);
1865 } else if (ff_inlink_acknowledge_status(ctx->inputs[1], &status, &pts)) {
1866 ff_outlink_set_status(outlink, status, s->pts);
1867 return 0;
1868 } else if (!ret) {
1869 if (ff_outlink_frame_wanted(outlink))
1870 ff_inlink_request_frame(ctx->inputs[1]);
1871 return 0;
1872 }
1873 }
1874
1875 if (ff_inlink_queued_frames(ctx->inputs[0]) > 0) {
1876 s->xf[0] = ff_inlink_peek_frame(ctx->inputs[0], 0);
1877 if (s->xf[0]) {
1878 if (s->first_pts == AV_NOPTS_VALUE) {
1879 s->first_pts = s->xf[0]->pts;
1880 }
1881 s->pts = s->xf[0]->pts;
1882 if (s->first_pts + s->offset_pts > s->xf[0]->pts) {
1883 s->xf[0] = NULL;
1884 s->need_second = 0;
1885 ff_inlink_consume_frame(ctx->inputs[0], &in);
1886 return ff_filter_frame(outlink, in);
1887 }
1888
1889 s->need_second = 1;
1890 }
1891 }
1892
1893 if (s->xf[0] && ff_inlink_queued_frames(ctx->inputs[1]) > 0) {
1894 ff_inlink_consume_frame(ctx->inputs[0], &s->xf[0]);
1895 ff_inlink_consume_frame(ctx->inputs[1], &s->xf[1]);
1896
1897 s->last_pts = s->xf[1]->pts;
1898 s->pts = s->xf[0]->pts;
1899 if (s->xf[0]->pts - (s->first_pts + s->offset_pts) > s->duration_pts)
1900 s->xfade_is_over = 1;
1901 ret = xfade_frame(ctx, s->xf[0], s->xf[1]);
1902 av_frame_free(&s->xf[0]);
1903 av_frame_free(&s->xf[1]);
1904 return ret;
1905 }
1906
1907 if (ff_inlink_queued_frames(ctx->inputs[0]) > 0 &&
1908 ff_inlink_queued_frames(ctx->inputs[1]) > 0) {
1909 ff_filter_set_ready(ctx, 100);
1910 return 0;
1911 }
1912
1913 if (ff_outlink_frame_wanted(outlink)) {
1914 if (!s->eof[0] && ff_outlink_get_status(ctx->inputs[0])) {
1915 s->eof[0] = 1;
1916 s->xfade_is_over = 1;
1917 }
1918 if (!s->eof[1] && ff_outlink_get_status(ctx->inputs[1])) {
1919 s->eof[1] = 1;
1920 }
1921 if (!s->eof[0] && !s->xf[0] && ff_inlink_queued_frames(ctx->inputs[0]) == 0)
1922 ff_inlink_request_frame(ctx->inputs[0]);
1923 if (!s->eof[1] && (s->need_second || s->eof[0]) && ff_inlink_queued_frames(ctx->inputs[1]) == 0)
1924 ff_inlink_request_frame(ctx->inputs[1]);
1925 if (s->eof[0] && s->eof[1] && (
1926 ff_inlink_queued_frames(ctx->inputs[0]) <= 0 &&
1927 ff_inlink_queued_frames(ctx->inputs[1]) <= 0)) {
1928 ff_outlink_set_status(outlink, AVERROR_EOF, AV_NOPTS_VALUE);
1929 } else if (s->xfade_is_over) {
1930 ff_filter_set_ready(ctx, 100);
1931 }
1932 return 0;
1933 }
1934
1935 return FFERROR_NOT_READY;
1936 }
1937
1938 static const AVFilterPad xfade_inputs[] = {
1939 {
1940 .name = "main",
1941 .type = AVMEDIA_TYPE_VIDEO,
1942 },
1943 {
1944 .name = "xfade",
1945 .type = AVMEDIA_TYPE_VIDEO,
1946 },
1947 { NULL }
1948 };
1949
1950 static const AVFilterPad xfade_outputs[] = {
1951 {
1952 .name = "default",
1953 .type = AVMEDIA_TYPE_VIDEO,
1954 .config_props = config_output,
1955 },
1956 { NULL }
1957 };
1958
1959 AVFilter ff_vf_xfade = {
1960 .name = "xfade",
1961 .description = NULL_IF_CONFIG_SMALL("Cross fade one video with another video."),
1962 .priv_size = sizeof(XFadeContext),
1963 .priv_class = &xfade_class,
1964 .query_formats = query_formats,
1965 .activate = xfade_activate,
1966 .uninit = uninit,
1967 .inputs = xfade_inputs,
1968 .outputs = xfade_outputs,
1969 .flags = AVFILTER_FLAG_SLICE_THREADS,
1970 };
1971