FFmpeg
vf_xfade.c
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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 
32  CUSTOM = -1,
77 };
78 
79 typedef struct XFadeContext {
80  const AVClass *class;
81 
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;
98  int eof[2];
99  AVFrame *xf[2];
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 
108 } XFadeContext;
109 
110 static const char *const var_names[] = { "X", "Y", "W", "H", "A", "B", "PLANE", "P", NULL };
112 
113 typedef struct ThreadData {
114  const AVFrame *xf[2];
115  AVFrame *out;
116  float progress;
117 } ThreadData;
118 
120 {
121  static const enum AVPixelFormat pix_fmts[] = {
138  };
139 
141  if (!fmts_list)
142  return AVERROR(ENOMEM);
143  return ff_set_common_formats(ctx, fmts_list);
144 }
145 
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 
250 static inline float mix(float a, float b, float mix)
251 {
252  return a * mix + b * (1.f - mix);
253 }
254 
255 static inline float fract(float a)
256 {
257  return a - floorf(a);
258 }
259 
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 
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 
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 
1659 static double a0(void *priv, double x, double y) { return getpix(priv, x, y, 0, 0); }
1660 static double a1(void *priv, double x, double y) { return getpix(priv, x, y, 1, 0); }
1661 static double a2(void *priv, double x, double y) { return getpix(priv, x, y, 2, 0); }
1662 static double a3(void *priv, double x, double y) { return getpix(priv, x, y, 3, 0); }
1663 
1664 static double b0(void *priv, double x, double y) { return getpix(priv, x, y, 0, 1); }
1665 static double b1(void *priv, double x, double y) { return getpix(priv, x, y, 1, 1); }
1666 static double b2(void *priv, double x, double y) { return getpix(priv, x, y, 2, 1); }
1667 static double b3(void *priv, double x, double y) { return getpix(priv, x, y, 3, 1); }
1668 
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 
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 
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);
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 
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 
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)) {
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 
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,
1966  .uninit = uninit,
1967  .inputs = xfade_inputs,
1970 };
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:99
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:411
VAR_VARS_NB
@ VAR_VARS_NB
Definition: vf_xfade.c:111
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
status
they must not be accessed directly The fifo field contains the frames that are queued in the input for processing by the filter The status_in and status_out fields contains the queued status(EOF or error) of the link
HORZOPEN_TRANSITION
#define HORZOPEN_TRANSITION(name, type, div)
Definition: vf_xfade.c:965
FADEBLACK_TRANSITION
#define FADEBLACK_TRANSITION(name, type, div)
Definition: vf_xfade.c:649
r
const char * r
Definition: vf_curves.c:116
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
SLIDERIGHT_TRANSITION
#define SLIDERIGHT_TRANSITION(name, type, div)
Definition: vf_xfade.c:451
xfade_activate
static int xfade_activate(AVFilterContext *ctx)
Definition: vf_xfade.c:1843
CIRCLECROP_TRANSITION
#define CIRCLECROP_TRANSITION(name, type, div)
Definition: vf_xfade.c:546
OFFSET
#define OFFSET(x)
Definition: vf_xfade.c:153
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
WIPELEFT
@ WIPELEFT
Definition: vf_xfade.c:34
out
FILE * out
Definition: movenc.c:54
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:978
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2541
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:55
FFERROR_NOT_READY
return FFERROR_NOT_READY
Definition: filter_design.txt:204
xfade_options
static const AVOption xfade_options[]
Definition: vf_xfade.c:156
floorf
static __device__ float floorf(float a)
Definition: cuda_runtime.h:172
AV_TIME_BASE_Q
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition: avutil.h:260
XFadeContext::nb_planes
int nb_planes
Definition: vf_xfade.c:87
WIPEDOWN_TRANSITION
#define WIPEDOWN_TRANSITION(name, type, div)
Definition: vf_xfade.c:388
RECTCROP_TRANSITION
#define RECTCROP_TRANSITION(name, type, div)
Definition: vf_xfade.c:579
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:111
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(xfade)
SMOOTHDOWN
@ SMOOTHDOWN
Definition: vf_xfade.c:51
WIPEBL_TRANSITION
#define WIPEBL_TRANSITION(name, type, div)
Definition: vf_xfade.c:1496
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:396
CIRCLECROP
@ CIRCLECROP
Definition: vf_xfade.c:42
AVFrame::width
int width
Definition: frame.h:361
w
uint8_t w
Definition: llviddspenc.c:39
SLIDELEFT_TRANSITION
#define SLIDELEFT_TRANSITION(name, type, div)
Definition: vf_xfade.c:418
AVComponentDescriptor::depth
int depth
Number of bits in the component.
Definition: pixdesc.h:58
VDSLICE_TRANSITION
#define VDSLICE_TRANSITION(name, type, div)
Definition: vf_xfade.c:1289
AVOption
AVOption.
Definition: opt.h:248
WIPERIGHT_TRANSITION
#define WIPERIGHT_TRANSITION(name, type, div)
Definition: vf_xfade.c:328
b
#define b
Definition: input.c:41
SLIDEDOWN
@ SLIDEDOWN
Definition: vf_xfade.c:41
AV_OPT_TYPE_DURATION
@ AV_OPT_TYPE_DURATION
Definition: opt.h:239
WIPEDOWN
@ WIPEDOWN
Definition: vf_xfade.c:37
DISSOLVE
@ DISSOLVE
Definition: vf_xfade.c:58
VUSLICE
@ VUSLICE
Definition: vf_xfade.c:66
XFadeContext::xfade_is_over
int xfade_is_over
Definition: vf_xfade.c:96
WIPETR
@ WIPETR
Definition: vf_xfade.c:71
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
SMOOTHDOWN_TRANSITION
#define SMOOTHDOWN_TRANSITION(name, type, div)
Definition: vf_xfade.c:826
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:502
video.h
AVFormatContext::internal
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1555
mix
static float mix(float a, float b, float mix)
Definition: vf_xfade.c:250
func2_names
static const char *const func2_names[]
Definition: af_afftfilt.c:120
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:317
DISTANCE
@ DISTANCE
Definition: vf_xfade.c:44
DIAGBR
@ DIAGBR
Definition: vf_xfade.c:63
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:65
XFadeContext::e
AVExpr * e
Definition: vf_xfade.c:107
formats.h
av_expr_parse
int av_expr_parse(AVExpr **expr, const char *s, const char *const *const_names, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), int log_offset, void *log_ctx)
Parse an expression.
Definition: eval.c:685
XFadeContext::transition
int transition
Definition: vf_xfade.c:82
ff_inlink_consume_frame
int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
Take a frame from the link's FIFO and update the link's stats.
Definition: avfilter.c:1376
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2581
VAR_PROGRESS
@ VAR_PROGRESS
Definition: vf_xfade.c:111
FF_FILTER_FORWARD_STATUS_BACK_ALL
#define FF_FILTER_FORWARD_STATUS_BACK_ALL(outlink, filter)
Forward the status on an output link to all input links.
Definition: filters.h:212
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:407
b1
static double b1(void *priv, double x, double y)
Definition: vf_xfade.c:1665
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:405
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:433
VERTOPEN_TRANSITION
#define VERTOPEN_TRANSITION(name, type, div)
Definition: vf_xfade.c:911
xfade_frame
static int xfade_frame(AVFilterContext *ctx, AVFrame *a, AVFrame *b)
Definition: vf_xfade.c:1822
FADEGRAYS_TRANSITION
#define FADEGRAYS_TRANSITION(name, type, div)
Definition: vf_xfade.c:1363
SLIDEDOWN_TRANSITION
#define SLIDEDOWN_TRANSITION(name, type, div)
Definition: vf_xfade.c:515
PIXELIZE_TRANSITION
#define PIXELIZE_TRANSITION(name, type, div)
Definition: vf_xfade.c:1052
pts
static int64_t pts
Definition: transcode_aac.c:652
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:373
ThreadData::xf
const AVFrame * xf[2]
Definition: vf_xfade.c:114
a2
static double a2(void *priv, double x, double y)
Definition: vf_xfade.c:1661
av_expr_free
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:336
AVRational::num
int num
Numerator.
Definition: rational.h:59
HLSLICE_TRANSITION
#define HLSLICE_TRANSITION(name, type, div)
Definition: vf_xfade.c:1201
XFadeContext::offset
int64_t offset
Definition: vf_xfade.c:84
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:392
FADEWHITE
@ FADEWHITE
Definition: vf_xfade.c:46
WIPERIGHT
@ WIPERIGHT
Definition: vf_xfade.c:35
func2
static double(*const func2[])(void *, double, double)
Definition: af_afftfilt.c:121
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:181
av_cold
#define av_cold
Definition: attributes.h:90
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:243
ff_set_common_formats
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:580
DIAGTR_TRANSITION
#define DIAGTR_TRANSITION(name, type, div)
Definition: vf_xfade.c:1113
duration
int64_t duration
Definition: movenc.c:64
SMOOTHLEFT_TRANSITION
#define SMOOTHLEFT_TRANSITION(name, type, div)
Definition: vf_xfade.c:743
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:409
ff_outlink_set_status
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
Definition: filters.h:189
XFadeContext::eof
int eof[2]
Definition: vf_xfade.c:98
ff_inlink_request_frame
void ff_inlink_request_frame(AVFilterLink *link)
Mark that a frame is wanted on the link.
Definition: avfilter.c:1502
XFadeContext::is_rgb
int is_rgb
Definition: vf_xfade.c:89
b3
static double b3(void *priv, double x, double y)
Definition: vf_xfade.c:1667
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:410
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:402
HBLUR
@ HBLUR
Definition: vf_xfade.c:68
smoothstep
static float smoothstep(float edge0, float edge1, float x)
Definition: vf_xfade.c:260
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2031
var_names
static const char *const var_names[]
Definition: vf_xfade.c:110
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
filters.h
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:290
DIAGTR
@ DIAGTR
Definition: vf_xfade.c:61
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:430
ctx
AVFormatContext * ctx
Definition: movenc.c:48
xi
#define xi(width, name, var, range_min, range_max, subs,...)
Definition: cbs_h2645.c:404
getpix
static double getpix(void *priv, double x, double y, int plane, int nb)
Definition: vf_xfade.c:1635
av_rescale_q
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
AVExpr
Definition: eval.c:157
HORZCLOSE
@ HORZCLOSE
Definition: vf_xfade.c:57
CIRCLECLOSE_TRANSITION
#define CIRCLECLOSE_TRANSITION(name, type, div)
Definition: vf_xfade.c:882
DIAGBL_TRANSITION
#define DIAGBL_TRANSITION(name, type, div)
Definition: vf_xfade.c:1142
SLIDERIGHT
@ SLIDERIGHT
Definition: vf_xfade.c:39
XFadeContext::need_second
int need_second
Definition: vf_xfade.c:97
f
#define f(width, name)
Definition: cbs_vp9.c:255
WIPETR_TRANSITION
#define WIPETR_TRANSITION(name, type, div)
Definition: vf_xfade.c:1464
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:370
ff_inlink_peek_frame
AVFrame * ff_inlink_peek_frame(AVFilterLink *link, size_t idx)
Access a frame in the link fifo without consuming it.
Definition: avfilter.c:1415
XFadeContext::depth
int depth
Definition: vf_xfade.c:88
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:408
SLIDEUP_TRANSITION
#define SLIDEUP_TRANSITION(name, type, div)
Definition: vf_xfade.c:484
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
NULL
#define NULL
Definition: coverity.c:32
HORZOPEN
@ HORZOPEN
Definition: vf_xfade.c:56
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:536
a3
static double a3(void *priv, double x, double y)
Definition: vf_xfade.c:1662
SMOOTHUP
@ SMOOTHUP
Definition: vf_xfade.c:50
FADE_TRANSITION
#define FADE_TRANSITION(name, type, div)
Definition: vf_xfade.c:269
activate
filter_frame For filters that do not use the activate() callback
NB_TRANSITIONS
@ NB_TRANSITIONS
Definition: vf_xfade.c:76
av_clipf
#define av_clipf
Definition: common.h:170
src
#define src
Definition: vp8dsp.c:255
PIXELIZE
@ PIXELIZE
Definition: vf_xfade.c:59
SMOOTHLEFT
@ SMOOTHLEFT
Definition: vf_xfade.c:48
RADIAL
@ RADIAL
Definition: vf_xfade.c:47
VAR_A
@ VAR_A
Definition: vf_xfade.c:111
xfade_inputs
static const AVFilterPad xfade_inputs[]
Definition: vf_xfade.c:1938
ff_vf_xfade
const AVFilter ff_vf_xfade
Definition: vf_xfade.c:1959
sinf
#define sinf(x)
Definition: libm.h:419
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:404
DISTANCE_TRANSITION
#define DISTANCE_TRANSITION(name, type, div)
Definition: vf_xfade.c:614
AVPixFmtDescriptor::flags
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:95
ff_inlink_acknowledge_status
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
Definition: avfilter.c:1331
xfade_outputs
static const AVFilterPad xfade_outputs[]
Definition: vf_xfade.c:1950
ff_inlink_queued_frames
size_t ff_inlink_queued_frames(AVFilterLink *link)
Get the number of frames available on the link.
Definition: avfilter.c:1346
XFadeContext
Definition: vf_xfade.c:79
eval.h
RADIAL_TRANSITION
#define RADIAL_TRANSITION(name, type, div)
Definition: vf_xfade.c:715
DIAGBL
@ DIAGBL
Definition: vf_xfade.c:62
WIPELEFT_TRANSITION
#define WIPELEFT_TRANSITION(name, type, div)
Definition: vf_xfade.c:298
RECTCROP
@ RECTCROP
Definition: vf_xfade.c:43
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
CUSTOM_TRANSITION
#define CUSTOM_TRANSITION(name, type, div)
Definition: vf_xfade.c:210
XFadeContext::white
uint16_t white[4]
Definition: vf_xfade.c:102
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:137
HORZCLOSE_TRANSITION
#define HORZCLOSE_TRANSITION(name, type, div)
Definition: vf_xfade.c:992
av_clipd
#define av_clipd
Definition: common.h:173
XFadeContext::xf
AVFrame * xf[2]
Definition: vf_xfade.c:99
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_xfade.c:146
VDSLICE
@ VDSLICE
Definition: vf_xfade.c:67
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
XFadeContext::offset_pts
int64_t offset_pts
Definition: vf_xfade.c:92
HBLUR_TRANSITION
#define HBLUR_TRANSITION(name, type, div)
Definition: vf_xfade.c:1319
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:396
VAR_Y
@ VAR_Y
Definition: vf_xfade.c:111
CIRCLECLOSE
@ CIRCLECLOSE
Definition: vf_xfade.c:53
VUSLICE_TRANSITION
#define VUSLICE_TRANSITION(name, type, div)
Definition: vf_xfade.c:1260
b2
static double b2(void *priv, double x, double y)
Definition: vf_xfade.c:1666
FFMIN
#define FFMIN(a, b)
Definition: common.h:105
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
XFadeContext::custom_str
char * custom_str
Definition: vf_xfade.c:85
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:167
a0
static double a0(void *priv, double x, double y)
Definition: vf_xfade.c:1659
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:428
frand
static float frand(int x, int y)
Definition: vf_xfade.c:1019
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
VAR_W
@ VAR_W
Definition: vf_xfade.c:111
SMOOTHRIGHT
@ SMOOTHRIGHT
Definition: vf_xfade.c:49
internal.h
WIPEUP_TRANSITION
#define WIPEUP_TRANSITION(name, type, div)
Definition: vf_xfade.c:358
WIPEUP
@ WIPEUP
Definition: vf_xfade.c:36
XFadeContext::duration_pts
int64_t duration_pts
Definition: vf_xfade.c:91
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_xfade.c:1669
SMOOTHRIGHT_TRANSITION
#define SMOOTHRIGHT_TRANSITION(name, type, div)
Definition: vf_xfade.c:771
VAR_B
@ VAR_B
Definition: vf_xfade.c:111
ThreadData::progress
float progress
Definition: vf_xfade.c:116
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:406
FADEGRAYS
@ FADEGRAYS
Definition: vf_xfade.c:69
VERTCLOSE_TRANSITION
#define VERTCLOSE_TRANSITION(name, type, div)
Definition: vf_xfade.c:938
XFadeContext::first_pts
int64_t first_pts
Definition: vf_xfade.c:93
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:762
ThreadData
Used for passing data between threads.
Definition: dsddec.c:67
FADEBLACK
@ FADEBLACK
Definition: vf_xfade.c:45
WIPETL_TRANSITION
#define WIPETL_TRANSITION(name, type, div)
Definition: vf_xfade.c:1432
DIAGTL_TRANSITION
#define DIAGTL_TRANSITION(name, type, div)
Definition: vf_xfade.c:1084
VERTCLOSE
@ VERTCLOSE
Definition: vf_xfade.c:55
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
fract
static float fract(float a)
Definition: vf_xfade.c:255
WIPEBR
@ WIPEBR
Definition: vf_xfade.c:73
SQUEEZEH
@ SQUEEZEH
Definition: vf_xfade.c:74
AVFilter
Filter definition.
Definition: avfilter.h:145
XFadeContext::max_value
int max_value
Definition: vf_xfade.c:100
ret
ret
Definition: filter_design.txt:187
WIPETL
@ WIPETL
Definition: vf_xfade.c:70
pixfmt.h
SQUEEZEH_TRANSITION
#define SQUEEZEH_TRANSITION(name, type, div)
Definition: vf_xfade.c:1560
FLAGS
#define FLAGS
Definition: vf_xfade.c:154
CIRCLEOPEN_TRANSITION
#define CIRCLEOPEN_TRANSITION(name, type, div)
Definition: vf_xfade.c:853
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:425
SQUEEZEV_TRANSITION
#define SQUEEZEV_TRANSITION(name, type, div)
Definition: vf_xfade.c:1597
XFadeContext::black
uint16_t black[4]
Definition: vf_xfade.c:101
AVFrame::height
int height
Definition: frame.h:361
xfade_slice
static int xfade_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_xfade.c:1809
VERTOPEN
@ VERTOPEN
Definition: vf_xfade.c:54
VAR_X
@ VAR_X
Definition: vf_xfade.c:111
SQUEEZEV
@ SQUEEZEV
Definition: vf_xfade.c:75
SLIDELEFT
@ SLIDELEFT
Definition: vf_xfade.c:38
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
FADEWHITE_TRANSITION
#define FADEWHITE_TRANSITION(name, type, div)
Definition: vf_xfade.c:682
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:106
HLSLICE
@ HLSLICE
Definition: vf_xfade.c:64
DIAGTL
@ DIAGTL
Definition: vf_xfade.c:60
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
ff_outlink_get_status
int ff_outlink_get_status(AVFilterLink *link)
Get the status on an output link.
Definition: avfilter.c:1525
AVFilterContext
An instance of a filter.
Definition: avfilter.h:333
SMOOTHUP_TRANSITION
#define SMOOTHUP_TRANSITION(name, type, div)
Definition: vf_xfade.c:799
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
CIRCLEOPEN
@ CIRCLEOPEN
Definition: vf_xfade.c:52
CUSTOM
@ CUSTOM
Definition: vf_xfade.c:32
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:70
XFadeContext::transitionf
void(* transitionf)(AVFilterContext *ctx, const AVFrame *a, const AVFrame *b, AVFrame *out, float progress, int slice_start, int slice_end, int jobnr)
Definition: vf_xfade.c:104
XFadeTransitions
XFadeTransitions
Definition: vf_xfade.c:31
VAR_H
@ VAR_H
Definition: vf_xfade.c:111
XFadeContext::last_pts
int64_t last_pts
Definition: vf_xfade.c:94
XFadeContext::duration
int64_t duration
Definition: vf_xfade.c:83
SLIDEUP
@ SLIDEUP
Definition: vf_xfade.c:40
DIAGBR_TRANSITION
#define DIAGBR_TRANSITION(name, type, div)
Definition: vf_xfade.c:1171
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:334
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
b0
static double b0(void *priv, double x, double y)
Definition: vf_xfade.c:1664
a1
static double a1(void *priv, double x, double y)
Definition: vf_xfade.c:1660
h
h
Definition: vp9dsp_template.c:2038
ff_outlink_frame_wanted
the definition of that something depends on the semantic of the filter The callback must examine the status of the filter s links and proceed accordingly The status of output links is stored in the status_in and status_out fields and tested by the ff_outlink_frame_wanted() function. If this function returns true
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:399
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:371
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_xfade.c:119
WIPEBR_TRANSITION
#define WIPEBR_TRANSITION(name, type, div)
Definition: vf_xfade.c:1528
WIPEBL
@ WIPEBL
Definition: vf_xfade.c:72
DISSOLVE_TRANSITION
#define DISSOLVE_TRANSITION(name, type, div)
Definition: vf_xfade.c:1026
XFadeContext::pts
int64_t pts
Definition: vf_xfade.c:95
FADE
@ FADE
Definition: vf_xfade.c:33
ff_filter_set_ready
void ff_filter_set_ready(AVFilterContext *filter, unsigned priority)
Mark a filter ready and schedule it for activation.
Definition: avfilter.c:186
HRSLICE
@ HRSLICE
Definition: vf_xfade.c:65
HRSLICE_TRANSITION
#define HRSLICE_TRANSITION(name, type, div)
Definition: vf_xfade.c:1230
VAR_PLANE
@ VAR_PLANE
Definition: vf_xfade.c:111