1 /*****************************************************************************
2 * mosaic.c : Mosaic video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2004-2008 the VideoLAN team
7 * Authors: Antoine Cellerier <dionoea at videolan dot org>
8 * Christophe Massiot <massiot@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
37 #include <limits.h> /* INT_MAX */
39 #include "vlc_filter.h"
40 #include "vlc_image.h"
44 #define BLANK_DELAY INT64_C(1000000)
46 /*****************************************************************************
48 *****************************************************************************/
49 static int CreateFilter ( vlc_object_t * );
50 static void DestroyFilter ( vlc_object_t * );
51 static subpicture_t *Filter ( filter_t *, mtime_t );
53 static int MosaicCallback ( vlc_object_t *, char const *, vlc_value_t,
54 vlc_value_t, void * );
56 /*****************************************************************************
57 * filter_sys_t : filter descriptor
58 *****************************************************************************/
61 vlc_mutex_t lock; /* Internal filter lock */
62 vlc_mutex_t *p_lock; /* Pointer to mosaic bridge lock */
64 image_handler_t *p_image;
66 int i_position; /* Mosaic positioning method */
67 bool b_ar; /* Do we keep the aspect ratio ? */
68 bool b_keep; /* Do we keep the original picture format ? */
69 int i_width, i_height; /* Mosaic height and width */
70 int i_cols, i_rows; /* Mosaic rows and cols */
71 int i_align; /* Mosaic alignment in background video */
72 int i_xoffset, i_yoffset; /* Top left corner offset */
73 int i_borderw, i_borderh; /* Border width/height between miniatures */
74 int i_alpha; /* Subfilter alpha blending */
76 char **ppsz_order; /* List of picture-ids */
79 int *pi_x_offsets; /* List of substreams x offsets */
80 int *pi_y_offsets; /* List of substreams y offsets */
86 /*****************************************************************************
88 *****************************************************************************/
89 #define ALPHA_TEXT N_("Transparency")
90 #define ALPHA_LONGTEXT N_( \
91 "Transparency of the mosaic foreground pictures. " \
92 "0 means transparent, 255 opaque (default)." )
94 #define HEIGHT_TEXT N_("Height")
95 #define HEIGHT_LONGTEXT N_( "Total height of the mosaic, in pixels." )
96 #define WIDTH_TEXT N_("Width")
97 #define WIDTH_LONGTEXT N_( "Total width of the mosaic, in pixels." )
99 #define XOFFSET_TEXT N_("Top left corner X coordinate")
100 #define XOFFSET_LONGTEXT N_( \
101 "X Coordinate of the top-left corner of the mosaic.")
102 #define YOFFSET_TEXT N_("Top left corner Y coordinate")
103 #define YOFFSET_LONGTEXT N_( \
104 "Y Coordinate of the top-left corner of the mosaic.")
106 #define BORDERW_TEXT N_("Border width")
107 #define BORDERW_LONGTEXT N_( \
108 "Width in pixels of the border between miniatures." )
109 #define BORDERH_TEXT N_("Border height")
110 #define BORDERH_LONGTEXT N_( \
111 "Height in pixels of the border between miniatures." )
113 #define ALIGN_TEXT N_("Mosaic alignment" )
114 #define ALIGN_LONGTEXT N_( \
115 "You can enforce the mosaic alignment on the video " \
116 "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
117 "also use combinations of these values, eg 6 = top-right).")
119 #define POS_TEXT N_("Positioning method")
120 #define POS_LONGTEXT N_( \
121 "Positioning method for the mosaic. auto: " \
122 "automatically choose the best number of rows and columns. " \
123 "fixed: use the user-defined number of rows and columns. " \
124 "offsets: use the user-defined offsets for each image." )
126 #define ROWS_TEXT N_("Number of rows")
127 #define ROWS_LONGTEXT N_( \
128 "Number of image rows in the mosaic (only used if " \
129 "positionning method is set to \"fixed\")." )
131 #define COLS_TEXT N_("Number of columns")
132 #define COLS_LONGTEXT N_( \
133 "Number of image columns in the mosaic (only used if " \
134 "positionning method is set to \"fixed\"." )
136 #define AR_TEXT N_("Keep aspect ratio")
137 #define AR_LONGTEXT N_( \
138 "Keep the original aspect ratio when resizing " \
140 #define KEEP_TEXT N_("Keep original size")
141 #define KEEP_LONGTEXT N_( \
142 "Keep the original size of mosaic elements." )
144 #define ORDER_TEXT N_("Elements order" )
145 #define ORDER_LONGTEXT N_( \
146 "You can enforce the order of the elements on " \
147 "the mosaic. You must give a comma-separated list of picture ID(s)." \
148 "These IDs are assigned in the \"mosaic-bridge\" module." )
150 #define OFFSETS_TEXT N_("Offsets in order" )
151 #define OFFSETS_LONGTEXT N_( \
152 "You can enforce the (x,y) offsets of the elements on the mosaic " \
153 "(only used if positioning method is set to \"offsets\"). You " \
154 "must give a comma-separated list of coordinates (eg: 10,10,150,10)." )
156 #define DELAY_TEXT N_("Delay")
157 #define DELAY_LONGTEXT N_( \
158 "Pictures coming from the mosaic elements will be delayed " \
159 "according to this value (in milliseconds). For high " \
160 "values you will need to raise caching at input.")
164 position_auto = 0, position_fixed = 1, position_offsets = 2
166 static const int pi_pos_values[] = { 0, 1, 2 };
167 static const char *const ppsz_pos_descriptions[] =
168 { N_("auto"), N_("fixed"), N_("offsets") };
170 static const int pi_align_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
171 static const char *const ppsz_align_descriptions[] =
172 { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
173 N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
175 #define CFG_PREFIX "mosaic-"
178 set_description( N_("Mosaic video sub filter") )
179 set_shortname( N_("Mosaic") )
180 set_category( CAT_VIDEO )
181 set_subcategory( SUBCAT_VIDEO_SUBPIC)
182 set_capability( "sub filter", 0 )
183 set_callbacks( CreateFilter, DestroyFilter )
185 add_integer_with_range( CFG_PREFIX "alpha", 255, 0, 255, NULL,
186 ALPHA_TEXT, ALPHA_LONGTEXT, false );
188 add_integer( CFG_PREFIX "height", 100, NULL,
189 HEIGHT_TEXT, HEIGHT_LONGTEXT, false );
190 add_integer( CFG_PREFIX "width", 100, NULL,
191 WIDTH_TEXT, WIDTH_LONGTEXT, false );
193 add_integer( CFG_PREFIX "align", 5, NULL,
194 ALIGN_TEXT, ALIGN_LONGTEXT, true);
195 change_integer_list( pi_align_values, ppsz_align_descriptions, NULL );
197 add_integer( CFG_PREFIX "xoffset", 0, NULL,
198 XOFFSET_TEXT, XOFFSET_LONGTEXT, true );
199 add_integer( CFG_PREFIX "yoffset", 0, NULL,
200 YOFFSET_TEXT, YOFFSET_LONGTEXT, true );
202 add_integer( CFG_PREFIX "borderw", 0, NULL,
203 BORDERW_TEXT, BORDERW_LONGTEXT, true );
204 add_deprecated_alias( CFG_PREFIX "vborder" )
205 add_integer( CFG_PREFIX "borderh", 0, NULL,
206 BORDERH_TEXT, BORDERH_LONGTEXT, true );
207 add_deprecated_alias( CFG_PREFIX "hborder" )
209 add_integer( CFG_PREFIX "position", 0, NULL,
210 POS_TEXT, POS_LONGTEXT, false );
211 change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL );
212 add_integer( CFG_PREFIX "rows", 2, NULL,
213 ROWS_TEXT, ROWS_LONGTEXT, false );
214 add_integer( CFG_PREFIX "cols", 2, NULL,
215 COLS_TEXT, COLS_LONGTEXT, false );
217 add_bool( CFG_PREFIX "keep-aspect-ratio", 0, NULL,
218 AR_TEXT, AR_LONGTEXT, false );
219 add_bool( CFG_PREFIX "keep-picture", 0, NULL,
220 KEEP_TEXT, KEEP_LONGTEXT, false );
222 add_string( CFG_PREFIX "order", "", NULL,
223 ORDER_TEXT, ORDER_LONGTEXT, false );
225 add_string( CFG_PREFIX "offsets", "", NULL,
226 OFFSETS_TEXT, OFFSETS_LONGTEXT, false );
228 add_integer( CFG_PREFIX "delay", 0, NULL, DELAY_TEXT, DELAY_LONGTEXT,
232 static const char *const ppsz_filter_options[] = {
233 "alpha", "height", "width", "align", "xoffset", "yoffset",
234 "borderw", "borderh", "position", "rows", "cols",
235 "keep-aspect-ratio", "keep-picture", "order", "offsets",
239 /*****************************************************************************
240 * mosaic_ParseSetOffsets:
241 * parse the "--mosaic-offsets x1,y1,x2,y2,x3,y3" parameter
242 * and set the corresponding struct filter_sys_t entries.
243 *****************************************************************************/
244 #define mosaic_ParseSetOffsets( a, b, c ) \
245 __mosaic_ParseSetOffsets( VLC_OBJECT( a ), b, c )
246 static void __mosaic_ParseSetOffsets( vlc_object_t *p_this,
252 char *psz_end = NULL;
258 p_sys->pi_x_offsets =
259 realloc( p_sys->pi_x_offsets, i_index * sizeof(int) );
260 p_sys->pi_x_offsets[i_index - 1] = atoi( psz_offsets );
261 psz_end = strchr( psz_offsets, ',' );
262 psz_offsets = psz_end + 1;
264 p_sys->pi_y_offsets =
265 realloc( p_sys->pi_y_offsets, i_index * sizeof(int) );
266 p_sys->pi_y_offsets[i_index - 1] = atoi( psz_offsets );
267 psz_end = strchr( psz_offsets, ',' );
268 psz_offsets = psz_end + 1;
270 msg_Dbg( p_this, CFG_PREFIX "offset: id %d, x=%d, y=%d",
271 i_index, p_sys->pi_x_offsets[i_index - 1],
272 p_sys->pi_y_offsets[i_index - 1] );
275 p_sys->i_offsets_length = i_index;
279 /*****************************************************************************
280 * CreateFiler: allocate mosaic video filter
281 *****************************************************************************/
282 static int CreateFilter( vlc_object_t *p_this )
284 filter_t *p_filter = (filter_t *)p_this;
286 vlc_object_t *p_libvlc = VLC_OBJECT( p_filter->p_libvlc );
287 char *psz_order, *_psz_order;
292 /* The mosaic thread is more important than the decoder threads */
293 vlc_thread_set_priority( p_this, VLC_THREAD_PRIORITY_OUTPUT );
295 /* Allocate structure */
296 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
300 p_filter->pf_sub_filter = Filter;
302 vlc_mutex_init( &p_sys->lock );
303 vlc_mutex_lock( &p_sys->lock );
305 var_Create( p_libvlc, "mosaic-lock", VLC_VAR_MUTEX );
306 var_Get( p_libvlc, "mosaic-lock", &val );
307 p_sys->p_lock = val.p_address;
309 config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
312 #define GET_VAR( name, min, max ) \
313 p_sys->i_##name = __MIN( max, __MAX( min, \
314 var_CreateGetIntegerCommand( p_filter, CFG_PREFIX #name ) ) ); \
315 var_AddCallback( p_filter, CFG_PREFIX #name, MosaicCallback, p_sys );
317 GET_VAR( width, 0, INT_MAX );
318 GET_VAR( height, 0, INT_MAX );
319 GET_VAR( xoffset, 0, INT_MAX );
320 GET_VAR( yoffset, 0, INT_MAX );
322 GET_VAR( align, 0, 10 );
323 if( p_sys->i_align == 3 || p_sys->i_align == 7 )
326 GET_VAR( borderw, 0, INT_MAX );
327 GET_VAR( borderh, 0, INT_MAX );
328 GET_VAR( rows, 1, INT_MAX );
329 GET_VAR( cols, 1, INT_MAX );
330 GET_VAR( alpha, 0, 255 );
331 GET_VAR( position, 0, 2 );
332 GET_VAR( delay, 100, INT_MAX );
333 p_sys->i_delay *= 1000;
335 p_sys->b_ar = var_CreateGetBoolCommand( p_filter,
336 CFG_PREFIX "keep-aspect-ratio" );
337 var_AddCallback( p_filter, CFG_PREFIX "keep-aspect-ratio", MosaicCallback,
340 p_sys->b_keep = var_CreateGetBoolCommand( p_filter,
341 CFG_PREFIX "keep-picture" );
342 if ( !p_sys->b_keep )
344 p_sys->p_image = image_HandlerCreate( p_filter );
347 p_sys->i_order_length = 0;
348 p_sys->ppsz_order = NULL;
349 psz_order = var_CreateGetStringCommand( p_filter, CFG_PREFIX "order" );
350 _psz_order = psz_order;
351 var_AddCallback( p_filter, CFG_PREFIX "order", MosaicCallback, p_sys );
355 char *psz_end = NULL;
359 psz_end = strchr( psz_order, ',' );
361 p_sys->ppsz_order = realloc( p_sys->ppsz_order,
362 i_index * sizeof(char *) );
363 p_sys->ppsz_order[i_index - 1] = strndup( psz_order,
364 psz_end - psz_order );
365 psz_order = psz_end+1;
367 p_sys->i_order_length = i_index;
372 /* Manage specific offsets for substreams */
373 psz_offsets = var_CreateGetStringCommand( p_filter, CFG_PREFIX "offsets" );
374 p_sys->i_offsets_length = 0;
375 p_sys->pi_x_offsets = NULL;
376 p_sys->pi_y_offsets = NULL;
377 mosaic_ParseSetOffsets( p_filter, p_sys, psz_offsets );
379 var_AddCallback( p_filter, CFG_PREFIX "offsets", MosaicCallback, p_sys );
381 vlc_mutex_unlock( &p_sys->lock );
386 /*****************************************************************************
387 * DestroyFilter: destroy mosaic video filter
388 *****************************************************************************/
389 static void DestroyFilter( vlc_object_t *p_this )
391 filter_t *p_filter = (filter_t*)p_this;
392 filter_sys_t *p_sys = p_filter->p_sys;
395 vlc_mutex_lock( &p_sys->lock );
399 image_HandlerDelete( p_sys->p_image );
402 if( p_sys->i_order_length )
404 for( i_index = 0; i_index < p_sys->i_order_length; i_index++ )
406 free( p_sys->ppsz_order[i_index] );
408 free( p_sys->ppsz_order );
410 if( p_sys->i_offsets_length )
412 free( p_sys->pi_x_offsets );
413 free( p_sys->pi_y_offsets );
414 p_sys->i_offsets_length = 0;
417 vlc_mutex_unlock( &p_sys->lock );
418 vlc_mutex_destroy( &p_sys->lock );
422 /*****************************************************************************
423 * MosaicReleasePicture : Hack to avoid picture duplication
424 *****************************************************************************/
425 static void MosaicReleasePicture( picture_t *p_picture )
427 picture_t *p_original_pic = (picture_t *)p_picture->p_sys;
429 picture_Release( p_original_pic );
432 /*****************************************************************************
434 *****************************************************************************/
435 static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
437 filter_sys_t *p_sys = p_filter->p_sys;
442 int i_index, i_real_index, i_row, i_col;
443 int i_greatest_real_index_used = p_sys->i_order_length - 1;
445 unsigned int col_inner_width, row_inner_height;
447 subpicture_region_t *p_region;
448 subpicture_region_t *p_region_prev = NULL;
450 /* Allocate the subpicture internal data. */
451 p_spu = filter_NewSubpicture( p_filter );
455 /* Initialize subpicture */
456 p_spu->i_channel = 0;
457 p_spu->i_start = date;
459 p_spu->b_ephemer = true;
460 p_spu->i_alpha = p_sys->i_alpha;
461 p_spu->b_absolute = false;
463 vlc_mutex_lock( &p_sys->lock );
464 vlc_mutex_lock( p_sys->p_lock );
466 p_bridge = GetBridge( p_filter );
467 if ( p_bridge == NULL )
469 vlc_mutex_unlock( p_sys->p_lock );
470 vlc_mutex_unlock( &p_sys->lock );
474 if ( p_sys->i_position == position_offsets )
476 /* If we have either too much or not enough offsets, fall-back
477 * to automatic positioning. */
478 if ( p_sys->i_offsets_length != p_sys->i_order_length )
481 "Number of specified offsets (%d) does not match number "
482 "of input substreams in mosaic-order (%d), falling back "
483 "to mosaic-position=0",
484 p_sys->i_offsets_length, p_sys->i_order_length );
485 p_sys->i_position = position_auto;
489 if ( p_sys->i_position == position_auto )
491 int i_numpics = p_sys->i_order_length; /* keep slots and all */
492 for ( i_index = 0; i_index < p_bridge->i_es_num; i_index++ )
494 bridged_es_t *p_es = p_bridge->pp_es[i_index];
495 if ( !p_es->b_empty )
498 if( p_sys->i_order_length && p_es->psz_id != NULL )
500 /* We also want to leave slots for images given in
501 * mosaic-order that are not available in p_vout_picture */
503 for( i = 0; i < p_sys->i_order_length ; i++ )
505 if( !strcmp( p_sys->ppsz_order[i], p_es->psz_id ) )
515 p_sys->i_rows = ceil(sqrt( (double)i_numpics ));
516 p_sys->i_cols = ( i_numpics % p_sys->i_rows == 0 ?
517 i_numpics / p_sys->i_rows :
518 i_numpics / p_sys->i_rows + 1 );
521 col_inner_width = ( ( p_sys->i_width - ( p_sys->i_cols - 1 )
522 * p_sys->i_borderw ) / p_sys->i_cols );
523 row_inner_height = ( ( p_sys->i_height - ( p_sys->i_rows - 1 )
524 * p_sys->i_borderh ) / p_sys->i_rows );
528 for ( i_index = 0; i_index < p_bridge->i_es_num; i_index++ )
530 bridged_es_t *p_es = p_bridge->pp_es[i_index];
531 video_format_t fmt_in, fmt_out;
532 picture_t *p_converted;
534 memset( &fmt_in, 0, sizeof( video_format_t ) );
535 memset( &fmt_out, 0, sizeof( video_format_t ) );
540 while ( p_es->p_picture != NULL
541 && p_es->p_picture->date + p_sys->i_delay < date )
543 if ( p_es->p_picture->p_next != NULL )
545 picture_t *p_next = p_es->p_picture->p_next;
546 picture_Release( p_es->p_picture );
547 p_es->p_picture = p_next;
549 else if ( p_es->p_picture->date + p_sys->i_delay + BLANK_DELAY <
553 picture_Release( p_es->p_picture );
554 p_es->p_picture = NULL;
555 p_es->pp_last = &p_es->p_picture;
560 msg_Dbg( p_filter, "too late picture for %s (%"PRId64 ")",
562 date - p_es->p_picture->date - p_sys->i_delay );
567 if ( p_es->p_picture == NULL )
570 if ( p_sys->i_order_length == 0 )
577 for ( i = 0; i <= p_sys->i_order_length; i++ )
579 if ( i == p_sys->i_order_length ) break;
580 if ( strcmp( p_es->psz_id, p_sys->ppsz_order[i] ) == 0 )
586 if ( i == p_sys->i_order_length )
587 i_real_index = ++i_greatest_real_index_used;
589 i_row = ( i_real_index / p_sys->i_cols ) % p_sys->i_rows;
590 i_col = i_real_index % p_sys->i_cols ;
592 if ( !p_sys->b_keep )
594 /* Convert the images */
595 fmt_in.i_chroma = p_es->p_picture->format.i_chroma;
596 fmt_in.i_height = p_es->p_picture->format.i_height;
597 fmt_in.i_width = p_es->p_picture->format.i_width;
599 if( fmt_in.i_chroma == VLC_FOURCC('Y','U','V','A') ||
600 fmt_in.i_chroma == VLC_FOURCC('R','G','B','A') )
601 fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
603 fmt_out.i_chroma = VLC_FOURCC('I','4','2','0');
604 fmt_out.i_width = col_inner_width;
605 fmt_out.i_height = row_inner_height;
607 if( p_sys->b_ar ) /* keep aspect ratio */
609 if( (float)fmt_out.i_width / (float)fmt_out.i_height
610 > (float)fmt_in.i_width / (float)fmt_in.i_height )
612 fmt_out.i_width = ( fmt_out.i_height * fmt_in.i_width )
617 fmt_out.i_height = ( fmt_out.i_width * fmt_in.i_height )
622 fmt_out.i_visible_width = fmt_out.i_width;
623 fmt_out.i_visible_height = fmt_out.i_height;
625 p_converted = image_Convert( p_sys->p_image, p_es->p_picture,
630 "image resizing and chroma conversion failed" );
636 p_converted = p_es->p_picture;
637 fmt_in.i_width = fmt_out.i_width = p_converted->format.i_width;
638 fmt_in.i_height = fmt_out.i_height = p_converted->format.i_height;
639 fmt_in.i_chroma = fmt_out.i_chroma = p_converted->format.i_chroma;
640 fmt_out.i_visible_width = fmt_out.i_width;
641 fmt_out.i_visible_height = fmt_out.i_height;
644 p_region = subpicture_region_New( &fmt_out );
645 /* FIXME the copy is probably not needed anymore */
647 picture_Copy( p_region->p_picture, p_converted );
649 picture_Release( p_converted );
653 msg_Err( p_filter, "cannot allocate SPU region" );
654 p_filter->pf_sub_buffer_del( p_filter, p_spu );
655 vlc_mutex_unlock( &p_sys->lock );
656 vlc_mutex_unlock( p_sys->p_lock );
660 if( p_es->i_x >= 0 && p_es->i_y >= 0 )
662 p_region->i_x = p_es->i_x;
663 p_region->i_y = p_es->i_y;
665 else if( p_sys->i_position == position_offsets )
667 p_region->i_x = p_sys->pi_x_offsets[i_real_index];
668 p_region->i_y = p_sys->pi_y_offsets[i_real_index];
672 if( fmt_out.i_width > col_inner_width ||
673 p_sys->b_ar || p_sys->b_keep )
675 /* we don't have to center the video since it takes the
676 whole rectangle area or it's larger than the rectangle */
677 p_region->i_x = p_sys->i_xoffset
678 + i_col * ( p_sys->i_width / p_sys->i_cols )
679 + ( i_col * p_sys->i_borderw ) / p_sys->i_cols;
683 /* center the video in the dedicated rectangle */
684 p_region->i_x = p_sys->i_xoffset
685 + i_col * ( p_sys->i_width / p_sys->i_cols )
686 + ( i_col * p_sys->i_borderw ) / p_sys->i_cols
687 + ( col_inner_width - fmt_out.i_width ) / 2;
690 if( fmt_out.i_height > row_inner_height
691 || p_sys->b_ar || p_sys->b_keep )
693 /* we don't have to center the video since it takes the
694 whole rectangle area or it's taller than the rectangle */
695 p_region->i_y = p_sys->i_yoffset
696 + i_row * ( p_sys->i_height / p_sys->i_rows )
697 + ( i_row * p_sys->i_borderh ) / p_sys->i_rows;
701 /* center the video in the dedicated rectangle */
702 p_region->i_y = p_sys->i_yoffset
703 + i_row * ( p_sys->i_height / p_sys->i_rows )
704 + ( i_row * p_sys->i_borderh ) / p_sys->i_rows
705 + ( row_inner_height - fmt_out.i_height ) / 2;
708 p_region->i_align = p_sys->i_align;
709 p_region->i_alpha = p_es->i_alpha;
711 if( p_region_prev == NULL )
713 p_spu->p_region = p_region;
717 p_region_prev->p_next = p_region;
720 p_region_prev = p_region;
723 vlc_mutex_unlock( p_sys->p_lock );
724 vlc_mutex_unlock( &p_sys->lock );
729 /*****************************************************************************
730 * Callback to update params on the fly
731 *****************************************************************************/
732 static int MosaicCallback( vlc_object_t *p_this, char const *psz_var,
733 vlc_value_t oldval, vlc_value_t newval,
737 filter_sys_t *p_sys = (filter_sys_t *) p_data;
739 #define VAR_IS( a ) !strcmp( psz_var, CFG_PREFIX a )
740 if( VAR_IS( "alpha" ) )
742 vlc_mutex_lock( &p_sys->lock );
743 msg_Dbg( p_this, "changing alpha from %d/255 to %d/255",
744 p_sys->i_alpha, newval.i_int);
745 p_sys->i_alpha = __MIN( __MAX( newval.i_int, 0 ), 255 );
746 vlc_mutex_unlock( &p_sys->lock );
748 else if( VAR_IS( "height" ) )
750 vlc_mutex_lock( &p_sys->lock );
751 msg_Dbg( p_this, "changing height from %dpx to %dpx",
752 p_sys->i_height, newval.i_int );
753 p_sys->i_height = __MAX( newval.i_int, 0 );
754 vlc_mutex_unlock( &p_sys->lock );
756 else if( VAR_IS( "width" ) )
758 vlc_mutex_lock( &p_sys->lock );
759 msg_Dbg( p_this, "changing width from %dpx to %dpx",
760 p_sys->i_width, newval.i_int );
761 p_sys->i_width = __MAX( newval.i_int, 0 );
762 vlc_mutex_unlock( &p_sys->lock );
764 else if( VAR_IS( "xoffset" ) )
766 vlc_mutex_lock( &p_sys->lock );
767 msg_Dbg( p_this, "changing x offset from %dpx to %dpx",
768 p_sys->i_xoffset, newval.i_int );
769 p_sys->i_xoffset = __MAX( newval.i_int, 0 );
770 vlc_mutex_unlock( &p_sys->lock );
772 else if( VAR_IS( "yoffset" ) )
774 vlc_mutex_lock( &p_sys->lock );
775 msg_Dbg( p_this, "changing y offset from %dpx to %dpx",
776 p_sys->i_yoffset, newval.i_int );
777 p_sys->i_yoffset = __MAX( newval.i_int, 0 );
778 vlc_mutex_unlock( &p_sys->lock );
780 else if( VAR_IS( "align" ) )
782 int i_old = 0, i_new = 0;
783 vlc_mutex_lock( &p_sys->lock );
784 newval.i_int = __MIN( __MAX( newval.i_int, 0 ), 10 );
785 if( newval.i_int == 3 || newval.i_int == 7 )
787 while( pi_align_values[i_old] != p_sys->i_align ) i_old++;
788 while( pi_align_values[i_new] != newval.i_int ) i_new++;
789 msg_Dbg( p_this, "changing alignment from %d (%s) to %d (%s)",
790 p_sys->i_align, ppsz_align_descriptions[i_old],
791 newval.i_int, ppsz_align_descriptions[i_new] );
792 p_sys->i_align = newval.i_int;
793 vlc_mutex_unlock( &p_sys->lock );
795 else if( VAR_IS( "borderw" ) )
797 vlc_mutex_lock( &p_sys->lock );
798 msg_Dbg( p_this, "changing border width from %dpx to %dpx",
799 p_sys->i_borderw, newval.i_int );
800 p_sys->i_borderw = __MAX( newval.i_int, 0 );
801 vlc_mutex_unlock( &p_sys->lock );
803 else if( VAR_IS( "borderh" ) )
805 vlc_mutex_lock( &p_sys->lock );
806 msg_Dbg( p_this, "changing border height from %dpx to %dpx",
807 p_sys->i_borderh, newval.i_int );
808 p_sys->i_borderh = __MAX( newval.i_int, 0 );
809 vlc_mutex_unlock( &p_sys->lock );
811 else if( VAR_IS( "position" ) )
813 if( newval.i_int > 2 || newval.i_int < 0 )
816 "Position is either 0 (%s), 1 (%s) or 2 (%s)",
817 ppsz_pos_descriptions[0],
818 ppsz_pos_descriptions[1],
819 ppsz_pos_descriptions[2] );
823 vlc_mutex_lock( &p_sys->lock );
824 msg_Dbg( p_this, "changing position method from %d (%s) to %d (%s)",
825 p_sys->i_position, ppsz_pos_descriptions[p_sys->i_position],
826 newval.i_int, ppsz_pos_descriptions[newval.i_int]);
827 p_sys->i_position = newval.i_int;
828 vlc_mutex_unlock( &p_sys->lock );
831 else if( VAR_IS( "rows" ) )
833 vlc_mutex_lock( &p_sys->lock );
834 msg_Dbg( p_this, "changing number of rows from %d to %d",
835 p_sys->i_rows, newval.i_int );
836 p_sys->i_rows = __MAX( newval.i_int, 1 );
837 vlc_mutex_unlock( &p_sys->lock );
839 else if( VAR_IS( "cols" ) )
841 vlc_mutex_lock( &p_sys->lock );
842 msg_Dbg( p_this, "changing number of columns from %d to %d",
843 p_sys->i_cols, newval.i_int );
844 p_sys->i_cols = __MAX( newval.i_int, 1 );
845 vlc_mutex_unlock( &p_sys->lock );
847 else if( VAR_IS( "order" ) )
851 vlc_mutex_lock( &p_sys->lock );
852 msg_Dbg( p_this, "Changing mosaic order to %s", newval.psz_string );
854 psz_order = newval.psz_string;
856 while( p_sys->i_order_length-- )
858 free( p_sys->ppsz_order[p_sys->i_order_length] );
860 free( p_sys->ppsz_order );
861 p_sys->ppsz_order = NULL;
865 char *psz_end = NULL;
869 psz_end = strchr( psz_order, ',' );
871 p_sys->ppsz_order = realloc( p_sys->ppsz_order,
872 i_index * sizeof(char *) );
873 p_sys->ppsz_order[i_index - 1] = strndup( psz_order,
874 psz_end - psz_order );
875 psz_order = psz_end+1;
877 p_sys->i_order_length = i_index;
880 vlc_mutex_unlock( &p_sys->lock );
882 else if( VAR_IS( "offsets" ) )
884 vlc_mutex_lock( &p_sys->lock );
885 msg_Info( p_this, "Changing mosaic-offsets to %s", newval.psz_string );
887 if( p_sys->i_offsets_length != 0 )
889 p_sys->i_offsets_length = 0;
890 free( p_sys->pi_x_offsets );
891 free( p_sys->pi_y_offsets );
892 p_sys->pi_x_offsets = NULL;
893 p_sys->pi_y_offsets = NULL;
896 mosaic_ParseSetOffsets( p_this, p_sys, newval.psz_string );
898 vlc_mutex_unlock( &p_sys->lock );
900 else if( VAR_IS( "keep-aspect-ratio" ) )
902 vlc_mutex_lock( &p_sys->lock );
905 msg_Dbg( p_this, "keeping aspect ratio" );
910 msg_Dbg( p_this, "won't keep aspect ratio" );
913 vlc_mutex_unlock( &p_sys->lock );
915 else if( VAR_IS( "keep-picture" ) )
917 vlc_mutex_lock( &p_sys->lock );
918 p_sys->b_keep = newval.b_bool;
919 if ( !p_sys->b_keep && !p_sys->p_image )
921 p_sys->p_image = image_HandlerCreate( p_this );
923 vlc_mutex_unlock( &p_sys->lock );