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lib: media_player: fix libvlc_MediaPlayerMediaChanged event
[vlc.git] / modules / video_filter / oldmovie.c
blobf7c6a710fc06cb4e5aa0eb004b3715c273eb6cea
1 /*****************************************************************************
2 * oldmovie.c : Old movie effect video filter
3 *****************************************************************************
4 * Copyright (C) 2013 Vianney Boyer
5 *
6 * Authors: Vianney Boyer <vlcvboyer -at- gmail -dot- com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU Lesser General Public License as published by
10 * the Free Software Foundation; either version 2.1 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public License
19 * along with this program; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
22
23 /*****************************************************************************
24 * Preamble
25 *****************************************************************************/
26
27 #ifdef HAVE_CONFIG_H
28 # include "config.h"
29 #endif
30
31 #include <math.h>
32
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_filter.h>
36 #include <vlc_picture.h>
37 #include <vlc_rand.h>
38 #include <vlc_tick.h>
39
40 #include "filter_picture.h"
41
42 static inline int64_t MOD(int64_t a, int64_t b) {
43 return ( ( a % b ) + b ) % b; }
44
45 #define SUB_MIN(val, sub_val, min) val = \
46 ((val-(int32_t)sub_val)<min?min:val-sub_val)
47 #define ADD_MAX(val, add_val, max) val = \
48 ((val+(int32_t)add_val)>max?max:val+add_val)
49
50 static inline int32_t PIX_OFS(int32_t i_x, int32_t i_y, plane_t *ps_plane) {
51 return i_x * ps_plane->i_pixel_pitch + i_y * ps_plane->i_pitch; }
52
53 #define CHECK_PIX_OFS(i_x, i_y, ps_plane) ( \
54 (i_x) >= 0 && (i_y) >= 0 && \
55 (i_x) * ps_plane->i_pixel_pitch < ps_plane->i_visible_pitch && \
56 (i_y) < ps_plane->i_visible_lines \
57 )
58
59 static inline void DARKEN_PIXEL(int32_t i_x, int32_t i_y,
60 int16_t intensity, plane_t *ps_plane) {
61 SUB_MIN( ps_plane->p_pixels[ PIX_OFS(i_x, i_y, ps_plane) ],
62 intensity, 0 );
63 }
64
65 static inline void LIGHTEN_PIXEL(int32_t i_x, int32_t i_y,
66 int16_t intensity, plane_t *ps_plane) {
67 ADD_MAX( ps_plane->p_pixels[ PIX_OFS(i_x, i_y, ps_plane) ],
68 intensity, 0xFF );
69 }
70
71 static inline void CHECK_N_DARKEN_PIXEL(int32_t i_x, int32_t i_y,
72 int16_t intensity, plane_t *ps_plane) {
73 if ( likely( CHECK_PIX_OFS(i_x, i_y, ps_plane) ) )
74 DARKEN_PIXEL(i_x, i_y, intensity, ps_plane);
75 }
76
77 static inline void CHECK_N_LIGHTEN_PIXEL(int32_t i_x, int32_t i_y,
78 int16_t intensity, plane_t *ps_plane) {
79 if ( likely( CHECK_PIX_OFS(i_x, i_y, ps_plane) ) )
80 LIGHTEN_PIXEL(i_x, i_y, intensity, ps_plane);
81 }
82
83 #define MAX_SCRATCH 20
84 #define MAX_HAIR 10
85 #define MAX_DUST 10
86
87 typedef struct {
88 int32_t i_offset;
89 int32_t i_width;
90 uint16_t i_intensity;
91 vlc_tick_t i_stop_trigger;
92 } scratch_t;
93
94 typedef struct {
95 int32_t i_x, i_y;
96 uint8_t i_rotation;
97 int32_t i_width;
98 int32_t i_length;
99 int32_t i_curve;
100 uint16_t i_intensity;
101 vlc_tick_t i_stop_trigger;
102 } hair_t;
103
104 typedef struct {
105 int32_t i_x, i_y;
106 int32_t i_width;
107 uint16_t i_intensity;
108 vlc_tick_t i_stop_trigger;
109 } dust_t;
110
111 typedef struct
112 {
113
114 /* general data */
115 bool b_init;
116 size_t i_planes;
117 int32_t *i_height;
118 int32_t *i_width;
119 int32_t *i_visible_pitch;
120 vlc_tick_t i_start_time;
121 vlc_tick_t i_last_time;
122 vlc_tick_t i_cur_time;
123
124 /* sliding & offset effect */
125 vlc_tick_t i_offset_trigger;
126 vlc_tick_t i_sliding_trigger;
127 vlc_tick_t i_sliding_stop_trig;
128 int32_t i_offset_ofs;
129 int32_t i_sliding_ofs;
130 int32_t i_sliding_speed;
131
132 /* scratch on film */
133 vlc_tick_t i_scratch_trigger;
134 scratch_t *p_scratch[MAX_SCRATCH];
135
136 /* hair on lens */
137 vlc_tick_t i_hair_trigger;
138 hair_t *p_hair[MAX_HAIR];
139
140 /* blotch on film */
141 vlc_tick_t i_blotch_trigger;
142
143 /* dust on lens */
144 vlc_tick_t i_dust_trigger;
145 dust_t *p_dust[MAX_DUST];
146 } filter_sys_t;
147
148 /*****************************************************************************
149 * Prototypes
150 *****************************************************************************/
151
152 static picture_t *Filter( filter_t *, picture_t * );
153
154 static int oldmovie_allocate_data( filter_t *, picture_t * );
155 static void oldmovie_free_allocated_data( filter_t * );
156
157 static void oldmovie_shutter_effect( filter_t *, picture_t * );
158 static int oldmovie_sliding_offset_effect( filter_t *, picture_t * );
159 static void oldmovie_black_n_white_effect( picture_t * );
160 static int oldmovie_dark_border_effect( filter_t *, picture_t * );
161 static int oldmovie_film_scratch_effect( filter_t *, picture_t * );
162 static void oldmovie_film_blotch_effect( filter_t *, picture_t * );
163 static void oldmovie_film_dust_effect( filter_t *, picture_t * );
164 static int oldmovie_lens_hair_effect( filter_t *, picture_t * );
165 static int oldmovie_lens_dust_effect( filter_t *, picture_t * );
166
167 static void oldmovie_define_hair_location( filter_t *p_filter, hair_t* ps_hair );
168 static void oldmovie_define_dust_location( filter_t *p_filter, dust_t* ps_dust );
169 static int oldmovie_sliding_offset_apply( filter_t *p_filter, picture_t *p_pic_out );
170
171 /*****************************************************************************
172 * Module descriptor
173 *****************************************************************************/
174
175 static int Open ( vlc_object_t * );
176 static void Close( vlc_object_t * );
177
178 vlc_module_begin()
179 set_description( N_("Old movie effect video filter") )
180 set_shortname( N_( "Old movie" ))
181 set_capability( "video filter", 0 )
182 set_category( CAT_VIDEO )
183 set_subcategory( SUBCAT_VIDEO_VFILTER )
184
185 set_callbacks( Open, Close )
186 vlc_module_end()
187
188 /**
189 * Open the filter
190 */
191 static int Open( vlc_object_t *p_this ) {
192 filter_t *p_filter = (filter_t *)p_this;
193 filter_sys_t *p_sys;
194
195 /* Assert video in match with video out */
196 if( !es_format_IsSimilar( &p_filter->fmt_in, &p_filter->fmt_out ) ) {
197 msg_Err( p_filter, "Input and output format does not match" );
198 return VLC_EGENERIC;
199 }
200
201 /* Reject 0 bpp and unsupported chroma */
202 const vlc_fourcc_t fourcc = p_filter->fmt_in.video.i_chroma;
203 const vlc_chroma_description_t *p_chroma =
204 vlc_fourcc_GetChromaDescription( p_filter->fmt_in.video.i_chroma );
205 if( !p_chroma || p_chroma->pixel_size == 0
206 || p_chroma->plane_count < 3 || p_chroma->pixel_size > 1
207 || !vlc_fourcc_IsYUV( fourcc ) ) {
208
209 msg_Err( p_filter, "Unsupported chroma (%4.4s)", (char*)&fourcc );
210 return VLC_EGENERIC;
211 }
212
213 /* Allocate structure */
214 p_filter->p_sys = p_sys = calloc( 1, sizeof(*p_sys) );
215 if( unlikely( !p_sys ) )
216 return VLC_ENOMEM;
217
218 /* init data */
219 p_filter->pf_video_filter = Filter;
220 p_sys->i_start_time = p_sys->i_cur_time = p_sys->i_last_time = vlc_tick_now();
221
222 return VLC_SUCCESS;
223 }
224
225 /**
226 * Close the filter
227 */
228 static void Close( vlc_object_t *p_this ) {
229 filter_t *p_filter = (filter_t *)p_this;
230 filter_sys_t *p_sys = p_filter->p_sys;
231
232 /* Free allocated memory */
233 oldmovie_free_allocated_data( p_filter );
234 free( p_sys );
235 }
236
237 /**
238 * Filter a picture
239 */
240 static picture_t *Filter( filter_t *p_filter, picture_t *p_pic_in ) {
241 if( unlikely( !p_pic_in || !p_filter ) )
242 return NULL;
243
244 filter_sys_t *p_sys = p_filter->p_sys;
245
246 picture_t *p_pic_out = filter_NewPicture( p_filter );
247 if( unlikely( !p_pic_out ) ) {
248 picture_Release( p_pic_in );
249 return NULL;
250 }
251
252 /*
253 * manage time
254 */
255 p_sys->i_last_time = p_sys->i_cur_time;
256 p_sys->i_cur_time = vlc_tick_now();
257
258 /*
259 * allocate data
260 */
261 if ( unlikely( !p_sys->b_init ) )
262 if ( unlikely( oldmovie_allocate_data( p_filter, p_pic_in ) != VLC_SUCCESS ) ) {
263 picture_Release( p_pic_in );
264 return NULL;
265 }
266 p_sys->b_init = true;
267
268 /*
269 * preset output pic: raw copy src to dst
270 */
271 picture_CopyPixels(p_pic_out, p_pic_in);
272
273 /*
274 * apply several effects on picture
275 */
276 oldmovie_black_n_white_effect( p_pic_out );
277
278 /* simulates projector shutter blinking effect */
279 oldmovie_shutter_effect(p_filter, p_pic_out);
280
281 if ( unlikely( oldmovie_sliding_offset_effect( p_filter, p_pic_out ) != VLC_SUCCESS ) )
282 return CopyInfoAndRelease( p_pic_out, p_pic_in );
283
284 oldmovie_dark_border_effect( p_filter, p_pic_out );
285
286 if ( unlikely( oldmovie_film_scratch_effect(p_filter, p_pic_out) != VLC_SUCCESS ) )
287 return CopyInfoAndRelease( p_pic_out, p_pic_in );
288
289 oldmovie_film_blotch_effect(p_filter, p_pic_out);
290
291 if ( unlikely( oldmovie_lens_hair_effect( p_filter, p_pic_out ) != VLC_SUCCESS ) )
292 return CopyInfoAndRelease( p_pic_out, p_pic_in );
293
294 if ( unlikely( oldmovie_lens_dust_effect( p_filter, p_pic_out ) != VLC_SUCCESS ) )
295 return CopyInfoAndRelease( p_pic_out, p_pic_in );
296
297 oldmovie_film_dust_effect( p_filter, p_pic_out );
298
299 return CopyInfoAndRelease( p_pic_out, p_pic_in );
300 }
301
302 /*
303 * Allocate data
304 */
305 static int oldmovie_allocate_data( filter_t *p_filter, picture_t *p_pic_in ) {
306 filter_sys_t *p_sys = p_filter->p_sys;
307
308 oldmovie_free_allocated_data( p_filter );
309
310 /*
311 * take into account different characteristics for each plane
312 */
313 p_sys->i_planes = p_pic_in->i_planes;
314 p_sys->i_height = calloc( p_sys->i_planes, sizeof(int32_t) );
315 p_sys->i_width = calloc( p_sys->i_planes, sizeof(int32_t) );
316 p_sys->i_visible_pitch = calloc( p_sys->i_planes, sizeof(int32_t) );
317
318 if( unlikely( !p_sys->i_height || !p_sys->i_width || !p_sys->i_visible_pitch ) ) {
319 oldmovie_free_allocated_data( p_filter );
320 return VLC_ENOMEM;
321 }
322
323 for (size_t i_p=0; i_p < p_sys->i_planes; i_p++) {
324 p_sys->i_visible_pitch [i_p] = (int) p_pic_in->p[i_p].i_visible_pitch;
325 p_sys->i_height[i_p] = (int) p_pic_in->p[i_p].i_visible_lines;
326 p_sys->i_width [i_p] = (int) p_pic_in->p[i_p].i_visible_pitch
327 / p_pic_in->p[i_p].i_pixel_pitch;
328 }
329 return VLC_SUCCESS;
330 }
331
332 /**
333 * Free allocated data
334 */
335 static void oldmovie_free_allocated_data( filter_t *p_filter ) {
336 filter_sys_t *p_sys = p_filter->p_sys;
337
338 for ( size_t i_s = 0; i_s < MAX_SCRATCH; i_s++ )
339 FREENULL(p_sys->p_scratch[i_s]);
340
341 for ( size_t i_h = 0; i_h < MAX_HAIR; i_h++ )
342 FREENULL(p_sys->p_hair[i_h]);
343
344 for ( size_t i_d = 0; i_d < MAX_DUST; i_d++ )
345 FREENULL(p_sys->p_dust[i_d]);
346
347 p_sys->i_planes = 0;
348 FREENULL( p_sys->i_height );
349 FREENULL( p_sys->i_width );
350 FREENULL( p_sys->i_visible_pitch );
351 }
352
353 /**
354 * Projector shutter effect
355 */
356 static void oldmovie_shutter_effect( filter_t *p_filter, picture_t *p_pic_out ) {
357 filter_sys_t *p_sys = p_filter->p_sys;
358
359 #define SHUTTER_FREQ 2
360 #define SHUTTER_SPEED 25
361 #define SHUTTER_HEIGHT 1.5
362
363 #define SHUTTER_INTENSITY 50
364
365 #define SUB_FRAME (p_sys->i_cur_time % (CLOCK_FREQ / SHUTTER_FREQ))
366
367 /*
368 * depending on current time: define shutter location on picture
369 */
370 int32_t i_shutter_sup = VLC_CLIP((int64_t)SUB_FRAME
371 * p_pic_out->p[Y_PLANE].i_visible_lines
372 * SHUTTER_SPEED / CLOCK_FREQ,
373 0, p_pic_out->p[Y_PLANE].i_visible_lines);
374
375 int32_t i_shutter_inf = VLC_CLIP((int64_t)SUB_FRAME
376 * p_pic_out->p[Y_PLANE].i_visible_lines
377 * SHUTTER_SPEED / CLOCK_FREQ
378 - SHUTTER_HEIGHT * p_pic_out->p[Y_PLANE].i_visible_lines,
379 0, p_pic_out->p[Y_PLANE].i_visible_lines);
380
381 int32_t i_width = p_pic_out->p[Y_PLANE].i_visible_pitch
382 / p_pic_out->p[Y_PLANE].i_pixel_pitch;
383
384 /*
385 * darken pixels currently occulted by shutter
386 */
387 for ( int32_t i_y = i_shutter_inf; i_y < i_shutter_sup; i_y++ )
388 for ( int32_t i_x = 0; i_x < i_width; i_x++ )
389 DARKEN_PIXEL( i_x, i_y, SHUTTER_INTENSITY, &p_pic_out->p[Y_PLANE] );
390 }
391
392 static vlc_tick_t RandomEnd(filter_sys_t *p_sys, vlc_tick_t modulo)
393 {
394 return p_sys->i_cur_time + (uint64_t)vlc_mrand48() % modulo + modulo / 2;
395 }
396
397 /**
398 * sliding & offset effect
399 */
400 static int oldmovie_sliding_offset_effect( filter_t *p_filter, picture_t *p_pic_out ) {
401 filter_sys_t *p_sys = p_filter->p_sys;
402
403
404 /**
405 * one shot offset section
406 */
407
408 #define OFFSET_AVERAGE_PERIOD VLC_TICK_FROM_SEC(10)
409
410 /* start trigger to be (re)initialized */
411 if ( p_sys->i_offset_trigger == 0
412 || p_sys->i_sliding_speed != 0 ) { /* do not mix sliding and offset */
413 /* random trigger for offset effect */
414 p_sys->i_offset_trigger = RandomEnd(p_sys, OFFSET_AVERAGE_PERIOD);
415 p_sys->i_offset_ofs = 0;
416 } else if ( p_sys->i_offset_trigger <= p_sys->i_cur_time ) {
417 /* trigger for offset effect */
418 p_sys->i_offset_trigger = 0;
419 p_sys->i_offset_ofs = MOD( ( (uint32_t)vlc_mrand48() ),
420 p_sys->i_height[Y_PLANE] ) * 100;
421 } else
422 p_sys->i_offset_ofs = 0;
423
424
425 /**
426 * sliding section
427 */
428
429 #define SLIDING_AVERAGE_PERIOD VLC_TICK_FROM_SEC(20)
430 #define SLIDING_AVERAGE_DURATION VLC_TICK_FROM_SEC(3)
431
432 /* start trigger to be (re)initialized */
433 if ( ( p_sys->i_sliding_stop_trig == 0 )
434 && ( p_sys->i_sliding_trigger == 0 )
435 && ( p_sys->i_sliding_speed == 0 ) ) {
436 /* random trigger which enable sliding effect */
437 p_sys->i_sliding_trigger = RandomEnd(p_sys, SLIDING_AVERAGE_PERIOD);
438 }
439 /* start trigger just occurs */
440 else if ( ( p_sys->i_sliding_stop_trig == 0 )
441 && ( p_sys->i_sliding_trigger <= p_sys->i_cur_time )
442 && ( p_sys->i_sliding_speed == 0 ) ) {
443 /* init sliding parameters */
444 p_sys->i_sliding_trigger = 0;
445 p_sys->i_sliding_stop_trig = RandomEnd(p_sys, SLIDING_AVERAGE_DURATION);
446 p_sys->i_sliding_ofs = 0;
447 /* note: sliding speed unit = image per 100 s */
448 p_sys->i_sliding_speed = MOD(((int32_t) vlc_mrand48() ), 201) - 100;
449 }
450 /* stop trigger disabling sliding effect */
451 else if ( ( p_sys->i_sliding_stop_trig <= p_sys->i_cur_time )
452 && ( p_sys->i_sliding_trigger == 0 ) ) {
453
454 /* first increase speed to ensure we will come back to stable image */
455 if ( abs(p_sys->i_sliding_speed) < 50 )
456 p_sys->i_sliding_speed += 5;
457
458 long long i_position = p_sys->i_sliding_speed
459 * p_sys->i_height[Y_PLANE]
460 * SEC_FROM_VLC_TICK( p_sys->i_cur_time - p_sys->i_last_time );
461
462 /* check if offset is close to 0 and then ready to stop */
463 if ( abs( p_sys->i_sliding_ofs ) < llabs( i_position )
464 || abs( p_sys->i_sliding_ofs ) < p_sys->i_height[Y_PLANE] * 100 / 20 ) {
465
466 /* reset sliding parameters */
467 p_sys->i_sliding_ofs = p_sys->i_sliding_speed = 0;
468 p_sys->i_sliding_trigger = p_sys->i_sliding_stop_trig = 0;
469 }
470 }
471
472 /* update offset */
473 p_sys->i_sliding_ofs += p_sys->i_sliding_speed * p_sys->i_height[Y_PLANE]
474 * SEC_FROM_VLC_TICK( p_sys->i_cur_time - p_sys->i_last_time );
475
476 p_sys->i_sliding_ofs = MOD( p_sys->i_sliding_ofs,
477 p_sys->i_height[Y_PLANE] * 100 );
478
479 /* apply offset */
480 return oldmovie_sliding_offset_apply( p_filter, p_pic_out );
481 }
482
483 /**
484 * apply both sliding and offset effect
485 */
486 static int oldmovie_sliding_offset_apply( filter_t *p_filter, picture_t *p_pic_out )
487 {
488 filter_sys_t *p_sys = p_filter->p_sys;
489
490 assert(p_pic_out->i_planes > 0);
491 size_t i_planes = p_pic_out->i_planes;
492
493 for ( size_t i_p = 0; i_p < i_planes; i_p++ ) {
494 /* first allocate temporary buffer for swap operation */
495 uint8_t *p_temp_buf = calloc( p_pic_out->p[i_p].i_lines * p_pic_out->p[i_p].i_pitch,
496 sizeof(uint8_t) );
497 if ( unlikely( !p_temp_buf ) )
498 return VLC_ENOMEM;
499 memcpy( p_temp_buf,p_pic_out->p[i_p].p_pixels,
500 p_pic_out->p[i_p].i_lines * p_pic_out->p[i_p].i_pitch );
501
502 /* copy lines to output_pic */
503 assert(p_pic_out->p[i_p].i_visible_lines > 0);
504 size_t i_visible_lines = p_pic_out->p[i_p].i_visible_lines;
505 for ( size_t i_y = 0; i_y < i_visible_lines; i_y++ ) {
506 size_t i_ofs = MOD( ( p_sys->i_offset_ofs + p_sys->i_sliding_ofs )
507 /100,
508 p_sys->i_height[Y_PLANE] );
509 i_ofs *= i_visible_lines;
510 i_ofs /= p_sys->i_height[Y_PLANE];
511
512 memcpy( &p_pic_out->p[i_p].p_pixels[ i_y * p_pic_out->p[i_p].i_pitch ],
513 &p_temp_buf[ ( ( i_y + i_ofs ) % i_visible_lines ) * p_pic_out->p[i_p].i_pitch ],
514 p_pic_out->p[i_p].i_visible_pitch);
515 }
516 free( p_temp_buf );
517 }
518
519 return VLC_SUCCESS;
520 }
521
522 /**
523 * Black and white transform including a touch of sepia effect
524 */
525 static void oldmovie_black_n_white_effect( picture_t *p_pic_out )
526 {
527 assert(p_pic_out->p[Y_PLANE].i_visible_lines > 0);
528 assert(p_pic_out->p[Y_PLANE].i_visible_pitch > 0);
529 size_t i_visible_lines = p_pic_out->p[Y_PLANE].i_visible_lines;
530 size_t i_visible_pitch = p_pic_out->p[Y_PLANE].i_visible_pitch;
531 size_t i_pixel_pitch = p_pic_out->p[Y_PLANE].i_pixel_pitch;
532
533 for ( size_t i_y = 0; i_y < i_visible_lines; i_y++ )
534 for ( size_t i_x = 0; i_x < i_visible_pitch; i_x += i_pixel_pitch ) {
535 size_t i_pix_ofs = i_x + i_y * p_pic_out->p[Y_PLANE].i_pitch;
536 p_pic_out->p[Y_PLANE].p_pixels[i_pix_ofs] -= p_pic_out->p[Y_PLANE].p_pixels[i_pix_ofs] >> 2;
537 p_pic_out->p[Y_PLANE].p_pixels[i_pix_ofs] += 30;
538 }
539
540 memset( p_pic_out->p[U_PLANE].p_pixels, 122,
541 p_pic_out->p[U_PLANE].i_lines * p_pic_out->p[U_PLANE].i_pitch );
542 memset( p_pic_out->p[V_PLANE].p_pixels, 132,
543 p_pic_out->p[V_PLANE].i_lines * p_pic_out->p[V_PLANE].i_pitch );
544 }
545
546 /**
547 * Smooth darker borders effect
548 */
549 static int oldmovie_dark_border_effect( filter_t *p_filter, picture_t *p_pic_out )
550 {
551 filter_sys_t *p_sys = p_filter->p_sys;
552
553 #define BORDER_DIST 20
554
555 for ( int32_t i_y = 0; i_y < p_sys->i_height[Y_PLANE]; i_y++ )
556 for ( int32_t i_x = 0; i_x < p_sys->i_width[Y_PLANE]; i_x++ ) {
557
558 int32_t i_x_border_dist = __MIN( i_x, p_sys->i_width[Y_PLANE] - i_x);
559 int32_t i_y_border_dist = __MIN( i_y, p_sys->i_height[Y_PLANE] - i_y);
560
561 int32_t i_border_dist = __MAX(BORDER_DIST - i_x_border_dist,0)
562 + __MAX(BORDER_DIST - i_y_border_dist,0);
563
564 i_border_dist = __MIN(BORDER_DIST, i_border_dist);
565
566 if ( i_border_dist == 0 )
567 continue;
568
569 uint32_t i_pix_ofs = i_x * p_pic_out->p[Y_PLANE].i_pixel_pitch
570 + i_y * p_pic_out->p[Y_PLANE].i_pitch;
571
572 SUB_MIN( p_pic_out->p[Y_PLANE].p_pixels[i_pix_ofs],
573 i_border_dist * 255 / BORDER_DIST, 0 );
574 }
575
576 return VLC_SUCCESS;
577 }
578
579 /**
580 * Vertical scratch random management and effect
581 */
582 static int oldmovie_film_scratch_effect( filter_t *p_filter, picture_t *p_pic_out )
583 {
584 filter_sys_t *p_sys = p_filter->p_sys;
585
586 #define SCRATCH_GENERATOR_PERIOD VLC_TICK_FROM_SEC(2)
587 #define SCRATCH_DURATION VLC_TICK_FROM_MS(500)
588
589 /* generate new scratch */
590 if ( p_sys->i_scratch_trigger <= p_sys->i_cur_time ) {
591 for ( uint32_t i_s = 0; i_s < MAX_SCRATCH; i_s++ )
592 if ( p_sys->p_scratch[i_s] == NULL ) {
593 /* allocate data */
594 p_sys->p_scratch[i_s] = calloc( 1, sizeof(scratch_t) );
595 if ( unlikely( !p_sys->p_scratch[i_s] ) )
596 return VLC_ENOMEM;
597
598 /* set random parameters */
599 p_sys->p_scratch[i_s]->i_offset = ( ( (unsigned)vlc_mrand48() )
600 % __MAX( p_sys->i_width[Y_PLANE] - 10, 1 ) )
601 + 5;
602 p_sys->p_scratch[i_s]->i_width = ( ( (unsigned)vlc_mrand48() )
603 % __MAX( p_sys->i_width[Y_PLANE] / 500, 1 ) )
604 + 1;
605 p_sys->p_scratch[i_s]->i_intensity = (unsigned) vlc_mrand48() % 50 + 10;
606 p_sys->p_scratch[i_s]->i_stop_trigger = RandomEnd(p_sys, SCRATCH_DURATION);
607
608 break;
609 }
610 p_sys->i_scratch_trigger = RandomEnd(p_sys, SCRATCH_GENERATOR_PERIOD);
611 }
612
613 /* manage and apply current scratch */
614 for ( uint32_t i_s = 0; i_s < MAX_SCRATCH; i_s++ )
615 if ( p_sys->p_scratch[i_s] ) {
616 /* remove outdated scratch */
617 if ( p_sys->p_scratch[i_s]->i_stop_trigger <= p_sys->i_cur_time ) {
618 FREENULL( p_sys->p_scratch[i_s] );
619 continue;
620 }
621
622 /* otherwise apply scratch */
623 for ( int32_t i_y = 0; i_y < p_pic_out->p[Y_PLANE].i_visible_lines; i_y++ )
624 for ( int32_t i_x = p_sys->p_scratch[i_s]->i_offset;
625 i_x < __MIN(p_sys->p_scratch[i_s]->i_offset
626 + p_sys->p_scratch[i_s]->i_width, p_sys->i_width[Y_PLANE] );
627 i_x++ )
628 DARKEN_PIXEL( i_x, i_y, p_sys->p_scratch[i_s]->i_intensity,
629 &p_pic_out->p[Y_PLANE] );
630 }
631
632 return VLC_SUCCESS;
633 }
634
635 /**
636 * Blotch addition
637 * bigger than dust but only during one frame (due to a local film damage)
638 */
639 static void oldmovie_film_blotch_effect( filter_t *p_filter, picture_t *p_pic_out )
640 {
641 filter_sys_t *p_sys = p_filter->p_sys;
642
643 #define BLOTCH_GENERATOR_PERIOD VLC_TICK_FROM_SEC(5)
644
645 /* generate blotch */
646 if ( p_sys->i_blotch_trigger <= p_sys->i_cur_time ) {
647 /* set random parameters */
648 int32_t i_bx = (unsigned)vlc_mrand48() % p_sys->i_width[Y_PLANE];
649 int32_t i_by = (unsigned)vlc_mrand48() % p_sys->i_height[Y_PLANE];
650 int32_t i_width = (unsigned)vlc_mrand48() % __MAX( 1, p_sys->i_width[Y_PLANE] / 10 ) + 1;
651 int32_t i_intensity = (unsigned)vlc_mrand48() % 50 + 20;
652
653 if ( (unsigned)vlc_mrand48() & 0x01 ) {
654 /* draw dark blotch */
655 for ( int32_t i_y = -i_width + 1; i_y < i_width; i_y++ )
656 for ( int32_t i_x = -i_width + 1; i_x < i_width; i_x++ )
657 if ( i_x * i_x + i_y * i_y <= i_width * i_width )
658 CHECK_N_DARKEN_PIXEL( i_x + i_bx, i_y + i_by,
659 i_intensity, &p_pic_out->p[Y_PLANE] );
660 } else {
661 /* draw light blotch */
662 for ( int32_t i_y = -i_width+1; i_y < i_width; i_y++ )
663 for ( int32_t i_x = -i_width+1; i_x < i_width; i_x++ )
664 if ( i_x * i_x + i_y * i_y <= i_width * i_width )
665 CHECK_N_LIGHTEN_PIXEL( i_x + i_bx, i_y + i_by,
666 i_intensity, &p_pic_out->p[Y_PLANE] );
667 }
668
669 p_sys->i_blotch_trigger = RandomEnd(p_sys, BLOTCH_GENERATOR_PERIOD);
670 }
671 }
672
673 /**
674 * Dust dots addition, visible during one frame only (film damages)
675 */
676 static void oldmovie_film_dust_effect( filter_t *p_filter, picture_t *p_pic_out ) {
677 #define ONESHOT_DUST_RATIO 1000
678
679 filter_sys_t *p_sys = p_filter->p_sys;
680
681 for ( int32_t i_dust = 0;
682 i_dust < p_sys->i_width[Y_PLANE] * p_sys->i_height[Y_PLANE] / ONESHOT_DUST_RATIO;
683 i_dust++)
684 if ( (unsigned)vlc_mrand48() % 5 < 3 )
685 DARKEN_PIXEL( (unsigned)vlc_mrand48() % p_sys->i_width[Y_PLANE],
686 (unsigned)vlc_mrand48() % p_sys->i_height[Y_PLANE],
687 150, &p_pic_out->p[Y_PLANE] );
688 else
689 LIGHTEN_PIXEL( (unsigned)vlc_mrand48() % p_sys->i_width[Y_PLANE],
690 (unsigned)vlc_mrand48() % p_sys->i_height[Y_PLANE],
691 50, &p_pic_out->p[Y_PLANE] );
692 }
693
694 /**
695 * Hair and dust on projector lens
696 *
697 */
698 #define HAIR_GENERATOR_PERIOD VLC_TICK_FROM_SEC(50)
699 #define HAIR_DURATION VLC_TICK_FROM_SEC(50)
700 #define DUST_GENERATOR_PERIOD VLC_TICK_FROM_SEC(100)
701 #define DUST_DURATION VLC_TICK_FROM_SEC(4)
702
703 /**
704 * Define hair location on the lens and timeout
705 *
706 */
707 static void oldmovie_define_hair_location( filter_t *p_filter, hair_t* ps_hair ) {
708 filter_sys_t *p_sys = p_filter->p_sys;
709
710 ps_hair->i_x = (unsigned)vlc_mrand48() % p_sys->i_width[Y_PLANE];
711 ps_hair->i_y = (unsigned)vlc_mrand48() % p_sys->i_height[Y_PLANE];
712 ps_hair->i_rotation = (unsigned)vlc_mrand48() % 200;
713
714 ps_hair->i_stop_trigger = RandomEnd(p_sys, HAIR_DURATION);
715 }
716
717 /**
718 * Show black hair on the screen
719 * after random duration it is removed or re-located
720 */
721 static int oldmovie_lens_hair_effect( filter_t *p_filter, picture_t *p_pic_out ) {
722 filter_sys_t *p_sys = p_filter->p_sys;
723
724 /* generate new hair */
725 if ( p_sys->i_hair_trigger <= p_sys->i_cur_time ) {
726 for ( uint32_t i_h = 0; i_h < MAX_HAIR; i_h++ )
727 if ( p_sys->p_hair[i_h] == NULL ) {
728 /* allocate data */
729 p_sys->p_hair[i_h] = calloc( 1, sizeof(hair_t) );
730 if ( unlikely( !p_sys->p_hair[i_h] ) )
731 return VLC_ENOMEM;
732
733 /* set random parameters */
734 p_sys->p_hair[i_h]->i_length = (unsigned)vlc_mrand48()
735 % ( p_sys->i_width[Y_PLANE] / 3 ) + 5;
736 p_sys->p_hair[i_h]->i_curve = MOD( (int32_t)vlc_mrand48(), 80 ) - 40;
737 p_sys->p_hair[i_h]->i_width = (unsigned)vlc_mrand48()
738 % __MAX( 1, p_sys->i_width[Y_PLANE] / 1500 ) + 1;
739 p_sys->p_hair[i_h]->i_intensity = (unsigned)vlc_mrand48() % 50 + 20;
740
741 oldmovie_define_hair_location( p_filter, p_sys->p_hair[i_h] );
742
743 break;
744 }
745 p_sys->i_hair_trigger = RandomEnd(p_sys, HAIR_GENERATOR_PERIOD);
746 }
747
748 /* manage and apply current hair */
749 for ( uint32_t i_h = 0; i_h < MAX_HAIR; i_h++ )
750 if ( p_sys->p_hair[i_h] ) {
751 /* remove outdated ones */
752 if ( p_sys->p_hair[i_h]->i_stop_trigger <= p_sys->i_cur_time ) {
753 /* select between moving or removing hair */
754 if ( (unsigned)vlc_mrand48() % 2 == 0 )
755 /* move hair */
756 oldmovie_define_hair_location( p_filter, p_sys->p_hair[i_h] );
757 else {
758 /* remove hair */
759 FREENULL( p_sys->p_hair[i_h] );
760 continue;
761 }
762 }
763
764 /* draw hair */
765 double f_base_x = (double)p_sys->p_hair[i_h]->i_x;
766 double f_base_y = (double)p_sys->p_hair[i_h]->i_y;
767
768 for ( int32_t i_l = 0; i_l < p_sys->p_hair[i_h]->i_length; i_l++ ) {
769 uint32_t i_current_rot = p_sys->p_hair[i_h]->i_rotation
770 + p_sys->p_hair[i_h]->i_curve * i_l / 100;
771 f_base_x += cos( (double)i_current_rot / 128.0 * M_PI );
772 f_base_y += sin( (double)i_current_rot / 128.0 * M_PI );
773 double f_current_x = f_base_x;
774 double f_current_y = f_base_y;
775 for ( int32_t i_w = 0; i_w < p_sys->p_hair[i_h]->i_width; i_w++ ) {
776 f_current_x += sin( (double)i_current_rot / 128.0 * M_PI );
777 f_current_y += cos( (double)i_current_rot / 128.0 * M_PI );
778 CHECK_N_DARKEN_PIXEL( (int32_t) f_current_x,
779 (int32_t) f_current_y,
780 p_sys->p_hair[i_h]->i_intensity,
781 &p_pic_out->p[Y_PLANE] );
782 }
783 }
784 }
785
786 return VLC_SUCCESS;
787 }
788
789 /**
790 * Define dust location on the lens and timeout
791 *
792 */
793 static void oldmovie_define_dust_location( filter_t *p_filter, dust_t* ps_dust ) {
794 filter_sys_t *p_sys = p_filter->p_sys;
795
796 ps_dust->i_x = (unsigned)vlc_mrand48() % p_sys->i_width[Y_PLANE];
797 ps_dust->i_y = (unsigned)vlc_mrand48() % p_sys->i_height[Y_PLANE];
798
799 ps_dust->i_stop_trigger = RandomEnd(p_sys, HAIR_DURATION);
800
801
802 ps_dust->i_x = MOD( (int32_t)vlc_mrand48(), p_sys->i_width[Y_PLANE] );
803 ps_dust->i_y = MOD( (int32_t)vlc_mrand48(), p_sys->i_height[Y_PLANE] );
804
805 ps_dust->i_stop_trigger = RandomEnd(p_sys, DUST_DURATION);
806 }
807
808 /**
809 * Dust addition
810 * smaller than blotch but will remain on the screen for long time
811 */
812 static int oldmovie_lens_dust_effect( filter_t *p_filter, picture_t *p_pic_out ) {
813 filter_sys_t *p_sys = p_filter->p_sys;
814
815 /* generate new dust */
816 if ( p_sys->i_dust_trigger <= p_sys->i_cur_time ) {
817 for ( uint32_t i_d = 0; i_d < MAX_DUST; i_d++ )
818 if ( p_sys->p_dust[i_d] == NULL ) {
819 /* allocate data */
820 p_sys->p_dust[i_d] = calloc( 1, sizeof(dust_t) );
821 if ( unlikely( !p_sys->p_dust[i_d] ) )
822 return VLC_ENOMEM;
823
824 /* set random parameters */
825 oldmovie_define_dust_location( p_filter, p_sys->p_dust[i_d] );
826 p_sys->p_dust[i_d]->i_width = MOD( (int32_t)vlc_mrand48(), 5 ) + 1;
827 p_sys->p_dust[i_d]->i_intensity = (unsigned)vlc_mrand48() % 30 + 30;
828
829 break;
830 }
831 p_sys->i_dust_trigger = RandomEnd(p_sys, DUST_GENERATOR_PERIOD);
832 }
833
834 /* manage and apply current dust */
835 for ( uint32_t i_d = 0; i_d < MAX_DUST; i_d++ )
836 if ( p_sys->p_dust[i_d] ) {
837 /* remove outdated ones */
838 if ( p_sys->p_dust[i_d]->i_stop_trigger <= p_sys->i_cur_time ) {
839 /* select between moving or removing dust */
840 if ( (unsigned)vlc_mrand48() % 2 == 0 )
841 /* move dust */
842 oldmovie_define_dust_location( p_filter, p_sys->p_dust[i_d] );
843 else {
844 /* remove dust */
845 FREENULL( p_sys->p_dust[i_d] );
846 continue;
847 }
848 }
849
850 /* draw dust */
851 for ( int32_t i_y = -p_sys->p_dust[i_d]->i_width + 1; i_y < p_sys->p_dust[i_d]->i_width; i_y++ )
852 for ( int32_t i_x = -p_sys->p_dust[i_d]->i_width + 1; i_x < p_sys->p_dust[i_d]->i_width; i_x++ )
853 if ( i_x * i_x + i_y * i_y <= p_sys->p_dust[i_d]->i_width * p_sys->p_dust[i_d]->i_width )
854 CHECK_N_DARKEN_PIXEL( i_x + p_sys->p_dust[i_d]->i_x,
855 i_y + p_sys->p_dust[i_d]->i_y,
856 p_sys->p_dust[i_d]->i_intensity,
857 &p_pic_out->p[Y_PLANE] );
858 }
859
860 return VLC_SUCCESS;
861 }
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