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 *****************************************************************************/
36 #include <limits.h> /* INT_MAX */
38 #include "vlc_filter.h"
39 #include "vlc_image.h"
43 #define BLANK_DELAY INT64_C(1000000)
45 /*****************************************************************************
47 *****************************************************************************/
48 static int CreateFilter ( vlc_object_t * );
49 static void DestroyFilter ( vlc_object_t * );
50 static subpicture_t *Filter ( filter_t *, mtime_t );
52 static int MosaicCallback ( vlc_object_t *, char const *, vlc_value_t,
53 vlc_value_t, void * );
55 /*****************************************************************************
56 * filter_sys_t : filter descriptor
57 *****************************************************************************/
60 vlc_mutex_t lock; /* Internal filter lock */
61 vlc_mutex_t *p_lock; /* Pointer to mosaic bridge lock */
63 image_handler_t *p_image;
65 int i_position; /* Mosaic positioning method */
66 bool b_ar; /* Do we keep the aspect ratio ? */
67 bool b_keep; /* Do we keep the original picture format ? */
68 int i_width, i_height; /* Mosaic height and width */
69 int i_cols, i_rows; /* Mosaic rows and cols */
70 int i_align; /* Mosaic alignment in background video */
71 int i_xoffset, i_yoffset; /* Top left corner offset */
72 int i_borderw, i_borderh; /* Border width/height between miniatures */
73 int i_alpha; /* Subfilter alpha blending */
75 char **ppsz_order; /* List of picture-ids */
78 int *pi_x_offsets; /* List of substreams x offsets */
79 int *pi_y_offsets; /* List of substreams y offsets */
85 /*****************************************************************************
87 *****************************************************************************/
88 #define ALPHA_TEXT N_("Transparency")
89 #define ALPHA_LONGTEXT N_( \
90 "Transparency of the mosaic foreground pictures. " \
91 "0 means transparent, 255 opaque (default)." )
93 #define HEIGHT_TEXT N_("Height")
94 #define HEIGHT_LONGTEXT N_( "Total height of the mosaic, in pixels." )
95 #define WIDTH_TEXT N_("Width")
96 #define WIDTH_LONGTEXT N_( "Total width of the mosaic, in pixels." )
98 #define XOFFSET_TEXT N_("Top left corner X coordinate")
99 #define XOFFSET_LONGTEXT N_( \
100 "X Coordinate of the top-left corner of the mosaic.")
101 #define YOFFSET_TEXT N_("Top left corner Y coordinate")
102 #define YOFFSET_LONGTEXT N_( \
103 "Y Coordinate of the top-left corner of the mosaic.")
105 #define BORDERW_TEXT N_("Border width")
106 #define BORDERW_LONGTEXT N_( \
107 "Width in pixels of the border between miniatures." )
108 #define BORDERH_TEXT N_("Border height")
109 #define BORDERH_LONGTEXT N_( \
110 "Height in pixels of the border between miniatures." )
112 #define ALIGN_TEXT N_("Mosaic alignment" )
113 #define ALIGN_LONGTEXT N_( \
114 "You can enforce the mosaic alignment on the video " \
115 "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
116 "also use combinations of these values, eg 6 = top-right).")
118 #define POS_TEXT N_("Positioning method")
119 #define POS_LONGTEXT N_( \
120 "Positioning method for the mosaic. auto: " \
121 "automatically choose the best number of rows and columns. " \
122 "fixed: use the user-defined number of rows and columns. " \
123 "offsets: use the user-defined offsets for each image." )
125 #define ROWS_TEXT N_("Number of rows")
126 #define ROWS_LONGTEXT N_( \
127 "Number of image rows in the mosaic (only used if " \
128 "positionning method is set to \"fixed\")." )
130 #define COLS_TEXT N_("Number of columns")
131 #define COLS_LONGTEXT N_( \
132 "Number of image columns in the mosaic (only used if " \
133 "positionning method is set to \"fixed\"." )
135 #define AR_TEXT N_("Keep aspect ratio")
136 #define AR_LONGTEXT N_( \
137 "Keep the original aspect ratio when resizing " \
139 #define KEEP_TEXT N_("Keep original size")
140 #define KEEP_LONGTEXT N_( \
141 "Keep the original size of mosaic elements." )
143 #define ORDER_TEXT N_("Elements order" )
144 #define ORDER_LONGTEXT N_( \
145 "You can enforce the order of the elements on " \
146 "the mosaic. You must give a comma-separated list of picture ID(s)." \
147 "These IDs are assigned in the \"mosaic-bridge\" module." )
149 #define OFFSETS_TEXT N_("Offsets in order" )
150 #define OFFSETS_LONGTEXT N_( \
151 "You can enforce the (x,y) offsets of the elements on the mosaic " \
152 "(only used if positioning method is set to \"offsets\"). You " \
153 "must give a comma-separated list of coordinates (eg: 10,10,150,10)." )
155 #define DELAY_TEXT N_("Delay")
156 #define DELAY_LONGTEXT N_( \
157 "Pictures coming from the mosaic elements will be delayed " \
158 "according to this value (in milliseconds). For high " \
159 "values you will need to raise caching at input.")
163 position_auto = 0, position_fixed = 1, position_offsets = 2
165 static int pi_pos_values[] = { 0, 1, 2 };
166 static const char *ppsz_pos_descriptions[] =
167 { N_("auto"), N_("fixed"), N_("offsets") };
169 static int pi_align_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
170 static const char *ppsz_align_descriptions[] =
171 { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
172 N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
174 #define CFG_PREFIX "mosaic-"
177 set_description( _("Mosaic video sub filter") );
178 set_shortname( _("Mosaic") );
179 set_category( CAT_VIDEO );
180 set_subcategory( SUBCAT_VIDEO_SUBPIC);
181 set_capability( "sub filter", 0 );
182 set_callbacks( CreateFilter, DestroyFilter );
184 add_integer_with_range( CFG_PREFIX "alpha", 255, 0, 255, NULL,
185 ALPHA_TEXT, ALPHA_LONGTEXT, false );
187 add_integer( CFG_PREFIX "height", 100, NULL,
188 HEIGHT_TEXT, HEIGHT_LONGTEXT, false );
189 add_integer( CFG_PREFIX "width", 100, NULL,
190 WIDTH_TEXT, WIDTH_LONGTEXT, false );
192 add_integer( CFG_PREFIX "align", 5, NULL,
193 ALIGN_TEXT, ALIGN_LONGTEXT, true);
194 change_integer_list( pi_align_values, ppsz_align_descriptions, 0 );
196 add_integer( CFG_PREFIX "xoffset", 0, NULL,
197 XOFFSET_TEXT, XOFFSET_LONGTEXT, true );
198 add_integer( CFG_PREFIX "yoffset", 0, NULL,
199 YOFFSET_TEXT, YOFFSET_LONGTEXT, true );
201 add_integer( CFG_PREFIX "borderw", 0, NULL,
202 BORDERW_TEXT, BORDERW_LONGTEXT, true );
203 add_deprecated_alias( CFG_PREFIX "vborder" );
204 add_integer( CFG_PREFIX "borderh", 0, NULL,
205 BORDERH_TEXT, BORDERH_LONGTEXT, true );
206 add_deprecated_alias( CFG_PREFIX "hborder" );
208 add_integer( CFG_PREFIX "position", 0, NULL,
209 POS_TEXT, POS_LONGTEXT, false );
210 change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 );
211 add_integer( CFG_PREFIX "rows", 2, NULL,
212 ROWS_TEXT, ROWS_LONGTEXT, false );
213 add_integer( CFG_PREFIX "cols", 2, NULL,
214 COLS_TEXT, COLS_LONGTEXT, false );
216 add_bool( CFG_PREFIX "keep-aspect-ratio", 0, NULL,
217 AR_TEXT, AR_LONGTEXT, false );
218 add_bool( CFG_PREFIX "keep-picture", 0, NULL,
219 KEEP_TEXT, KEEP_LONGTEXT, false );
221 add_string( CFG_PREFIX "order", "", NULL,
222 ORDER_TEXT, ORDER_LONGTEXT, false );
224 add_string( CFG_PREFIX "offsets", "", NULL,
225 OFFSETS_TEXT, OFFSETS_LONGTEXT, false );
227 add_integer( CFG_PREFIX "delay", 0, NULL, DELAY_TEXT, DELAY_LONGTEXT,
231 static const char *ppsz_filter_options[] = {
232 "alpha", "height", "width", "align", "xoffset", "yoffset",
233 "borderw", "borderh", "position", "rows", "cols",
234 "keep-aspect-ratio", "keep-picture", "order", "offsets",
238 /*****************************************************************************
239 * mosaic_ParseSetOffsets:
240 * parse the "--mosaic-offsets x1,y1,x2,y2,x3,y3" parameter
241 * and set the corresponding struct filter_sys_t entries.
242 *****************************************************************************/
243 #define mosaic_ParseSetOffsets( a, b, c ) \
244 __mosaic_ParseSetOffsets( VLC_OBJECT( a ), b, c )
245 static void __mosaic_ParseSetOffsets( vlc_object_t *p_this,
251 char *psz_end = NULL;
257 p_sys->pi_x_offsets =
258 realloc( p_sys->pi_x_offsets, i_index * sizeof(int) );
259 p_sys->pi_x_offsets[i_index - 1] = atoi( psz_offsets );
260 psz_end = strchr( psz_offsets, ',' );
261 psz_offsets = psz_end + 1;
263 p_sys->pi_y_offsets =
264 realloc( p_sys->pi_y_offsets, i_index * sizeof(int) );
265 p_sys->pi_y_offsets[i_index - 1] = atoi( psz_offsets );
266 psz_end = strchr( psz_offsets, ',' );
267 psz_offsets = psz_end + 1;
269 msg_Dbg( p_this, CFG_PREFIX "offset: id %d, x=%d, y=%d",
270 i_index, p_sys->pi_x_offsets[i_index - 1],
271 p_sys->pi_y_offsets[i_index - 1] );
274 p_sys->i_offsets_length = i_index;
278 /*****************************************************************************
279 * CreateFiler: allocate mosaic video filter
280 *****************************************************************************/
281 static int CreateFilter( vlc_object_t *p_this )
283 filter_t *p_filter = (filter_t *)p_this;
285 vlc_object_t *p_libvlc = VLC_OBJECT( p_filter->p_libvlc );
286 char *psz_order, *_psz_order;
291 /* The mosaic thread is more important than the decoder threads */
292 vlc_thread_set_priority( p_this, VLC_THREAD_PRIORITY_OUTPUT );
294 /* Allocate structure */
295 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
298 msg_Err( p_filter, "out of memory" );
302 p_filter->pf_sub_filter = Filter;
304 vlc_mutex_init( &p_sys->lock );
305 vlc_mutex_lock( &p_sys->lock );
307 var_Create( p_libvlc, "mosaic-lock", VLC_VAR_MUTEX );
308 var_Get( p_libvlc, "mosaic-lock", &val );
309 p_sys->p_lock = val.p_address;
311 config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
314 #define GET_VAR( name, min, max ) \
315 p_sys->i_##name = __MIN( max, __MAX( min, \
316 var_CreateGetIntegerCommand( p_filter, CFG_PREFIX #name ) ) ); \
317 var_AddCallback( p_filter, CFG_PREFIX #name, MosaicCallback, p_sys );
319 GET_VAR( width, 0, INT_MAX );
320 GET_VAR( height, 0, INT_MAX );
321 GET_VAR( xoffset, 0, INT_MAX );
322 GET_VAR( yoffset, 0, INT_MAX );
324 GET_VAR( align, 0, 10 );
325 if( p_sys->i_align == 3 || p_sys->i_align == 7 )
328 GET_VAR( borderw, 0, INT_MAX );
329 GET_VAR( borderh, 0, INT_MAX );
330 GET_VAR( rows, 1, INT_MAX );
331 GET_VAR( cols, 1, INT_MAX );
332 GET_VAR( alpha, 0, 255 );
333 GET_VAR( position, 0, 2 );
334 GET_VAR( delay, 100, INT_MAX );
335 p_sys->i_delay *= 1000;
337 p_sys->b_ar = var_CreateGetBoolCommand( p_filter,
338 CFG_PREFIX "keep-aspect-ratio" );
339 var_AddCallback( p_filter, CFG_PREFIX "keep-aspect-ratio", MosaicCallback,
342 p_sys->b_keep = var_CreateGetBoolCommand( p_filter,
343 CFG_PREFIX "keep-picture" );
344 if ( !p_sys->b_keep )
346 p_sys->p_image = image_HandlerCreate( p_filter );
349 p_sys->i_order_length = 0;
350 p_sys->ppsz_order = NULL;
351 psz_order = var_CreateGetStringCommand( p_filter, CFG_PREFIX "order" );
352 _psz_order = psz_order;
353 var_AddCallback( p_filter, CFG_PREFIX "order", MosaicCallback, p_sys );
357 char *psz_end = NULL;
361 psz_end = strchr( psz_order, ',' );
363 p_sys->ppsz_order = realloc( p_sys->ppsz_order,
364 i_index * sizeof(char *) );
365 p_sys->ppsz_order[i_index - 1] = strndup( psz_order,
366 psz_end - psz_order );
367 psz_order = psz_end+1;
369 p_sys->i_order_length = i_index;
374 /* Manage specific offsets for substreams */
375 psz_offsets = var_CreateGetStringCommand( p_filter, CFG_PREFIX "offsets" );
376 p_sys->i_offsets_length = 0;
377 p_sys->pi_x_offsets = NULL;
378 p_sys->pi_y_offsets = NULL;
379 mosaic_ParseSetOffsets( p_filter, p_sys, psz_offsets );
381 var_AddCallback( p_filter, CFG_PREFIX "offsets", MosaicCallback, p_sys );
383 vlc_mutex_unlock( &p_sys->lock );
388 /*****************************************************************************
389 * DestroyFilter: destroy mosaic video filter
390 *****************************************************************************/
391 static void DestroyFilter( vlc_object_t *p_this )
393 filter_t *p_filter = (filter_t*)p_this;
394 filter_sys_t *p_sys = p_filter->p_sys;
397 vlc_mutex_lock( &p_sys->lock );
401 image_HandlerDelete( p_sys->p_image );
404 if( p_sys->i_order_length )
406 for( i_index = 0; i_index < p_sys->i_order_length; i_index++ )
408 free( p_sys->ppsz_order[i_index] );
410 free( p_sys->ppsz_order );
412 if( p_sys->i_offsets_length )
414 free( p_sys->pi_x_offsets );
415 free( p_sys->pi_y_offsets );
416 p_sys->i_offsets_length = 0;
419 vlc_mutex_unlock( &p_sys->lock );
420 vlc_mutex_destroy( &p_sys->lock );
424 /*****************************************************************************
425 * MosaicReleasePicture : Hack to avoid picture duplication
426 *****************************************************************************/
427 static void MosaicReleasePicture( picture_t *p_picture )
429 picture_t *p_original_pic = (picture_t *)p_picture->p_sys;
431 p_original_pic->pf_release( p_original_pic );
434 /*****************************************************************************
436 *****************************************************************************/
437 static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
439 filter_sys_t *p_sys = p_filter->p_sys;
444 int i_index, i_real_index, i_row, i_col;
445 int i_greatest_real_index_used = p_sys->i_order_length - 1;
447 unsigned int col_inner_width, row_inner_height;
449 subpicture_region_t *p_region;
450 subpicture_region_t *p_region_prev = NULL;
452 /* Allocate the subpicture internal data. */
453 p_spu = p_filter->pf_sub_buffer_new( p_filter );
459 /* Initialize subpicture */
460 p_spu->i_channel = 0;
461 p_spu->i_start = date;
463 p_spu->b_ephemer = true;
464 p_spu->i_alpha = p_sys->i_alpha;
465 p_spu->i_flags = p_sys->i_align;
466 p_spu->b_absolute = false;
468 vlc_mutex_lock( &p_sys->lock );
469 vlc_mutex_lock( p_sys->p_lock );
471 p_bridge = GetBridge( p_filter );
472 if ( p_bridge == NULL )
474 vlc_mutex_unlock( p_sys->p_lock );
475 vlc_mutex_unlock( &p_sys->lock );
479 if ( p_sys->i_position == position_offsets )
481 /* If we have either too much or not enough offsets, fall-back
482 * to automatic positioning. */
483 if ( p_sys->i_offsets_length != p_sys->i_order_length )
486 "Number of specified offsets (%d) does not match number "
487 "of input substreams in mosaic-order (%d), falling back "
488 "to mosaic-position=0",
489 p_sys->i_offsets_length, p_sys->i_order_length );
490 p_sys->i_position = position_auto;
494 if ( p_sys->i_position == position_auto )
496 int i_numpics = p_sys->i_order_length; /* keep slots and all */
497 for ( i_index = 0; i_index < p_bridge->i_es_num; i_index++ )
499 bridged_es_t *p_es = p_bridge->pp_es[i_index];
500 if ( !p_es->b_empty )
503 if( p_sys->i_order_length && p_es->psz_id != 0 )
505 /* We also want to leave slots for images given in
506 * mosaic-order that are not available in p_vout_picture */
508 for( i = 0; i < p_sys->i_order_length ; i++ )
510 if( !strcmp( p_sys->ppsz_order[i], p_es->psz_id ) )
520 p_sys->i_rows = ceil(sqrt( (double)i_numpics ));
521 p_sys->i_cols = ( i_numpics % p_sys->i_rows == 0 ?
522 i_numpics / p_sys->i_rows :
523 i_numpics / p_sys->i_rows + 1 );
526 col_inner_width = ( ( p_sys->i_width - ( p_sys->i_cols - 1 )
527 * p_sys->i_borderw ) / p_sys->i_cols );
528 row_inner_height = ( ( p_sys->i_height - ( p_sys->i_rows - 1 )
529 * p_sys->i_borderh ) / p_sys->i_rows );
533 for ( i_index = 0; i_index < p_bridge->i_es_num; i_index++ )
535 bridged_es_t *p_es = p_bridge->pp_es[i_index];
536 video_format_t fmt_in, fmt_out;
537 picture_t *p_converted;
539 memset( &fmt_in, 0, sizeof( video_format_t ) );
540 memset( &fmt_out, 0, sizeof( video_format_t ) );
545 while ( p_es->p_picture != NULL
546 && p_es->p_picture->date + p_sys->i_delay < date )
548 if ( p_es->p_picture->p_next != NULL )
550 picture_t *p_next = p_es->p_picture->p_next;
551 p_es->p_picture->pf_release( p_es->p_picture );
552 p_es->p_picture = p_next;
554 else if ( p_es->p_picture->date + p_sys->i_delay + BLANK_DELAY <
558 p_es->p_picture->pf_release( p_es->p_picture );
559 p_es->p_picture = NULL;
560 p_es->pp_last = &p_es->p_picture;
565 msg_Dbg( p_filter, "too late picture for %s (%"PRId64 ")",
567 date - p_es->p_picture->date - p_sys->i_delay );
572 if ( p_es->p_picture == NULL )
575 if ( p_sys->i_order_length == 0 )
582 for ( i = 0; i <= p_sys->i_order_length; i++ )
584 if ( i == p_sys->i_order_length ) break;
585 if ( strcmp( p_es->psz_id, p_sys->ppsz_order[i] ) == 0 )
591 if ( i == p_sys->i_order_length )
592 i_real_index = ++i_greatest_real_index_used;
594 i_row = ( i_real_index / p_sys->i_cols ) % p_sys->i_rows;
595 i_col = i_real_index % p_sys->i_cols ;
597 if ( !p_sys->b_keep )
599 /* Convert the images */
600 fmt_in.i_chroma = p_es->p_picture->format.i_chroma;
601 fmt_in.i_height = p_es->p_picture->format.i_height;
602 fmt_in.i_width = p_es->p_picture->format.i_width;
604 fmt_out.i_chroma = VLC_FOURCC('I','4','2','0');
605 fmt_out.i_width = col_inner_width;
606 fmt_out.i_height = row_inner_height;
608 if( p_sys->b_ar ) /* keep aspect ratio */
610 if( (float)fmt_out.i_width / (float)fmt_out.i_height
611 > (float)fmt_in.i_width / (float)fmt_in.i_height )
613 fmt_out.i_width = ( fmt_out.i_height * fmt_in.i_width )
618 fmt_out.i_height = ( fmt_out.i_width * fmt_in.i_height )
623 fmt_out.i_visible_width = fmt_out.i_width;
624 fmt_out.i_visible_height = fmt_out.i_height;
626 p_converted = image_Convert( p_sys->p_image, p_es->p_picture,
631 "image resizing and chroma conversion failed" );
637 p_converted = p_es->p_picture;
638 p_converted->i_refcount++;
639 fmt_in.i_width = fmt_out.i_width = p_converted->format.i_width;
640 fmt_in.i_height = fmt_out.i_height = p_converted->format.i_height;
641 fmt_in.i_chroma = fmt_out.i_chroma = p_converted->format.i_chroma;
642 fmt_out.i_visible_width = fmt_out.i_width;
643 fmt_out.i_visible_height = fmt_out.i_height;
646 p_region = p_spu->pf_make_region( VLC_OBJECT(p_filter), &fmt_out,
650 msg_Err( p_filter, "cannot allocate SPU region" );
651 p_filter->pf_sub_buffer_del( p_filter, p_spu );
652 vlc_mutex_unlock( &p_sys->lock );
653 vlc_mutex_unlock( p_sys->p_lock );
657 /* HACK ALERT: let's fix the pointers to avoid picture duplication.
658 * This is necessary because p_region->picture is not a pointer
659 * as it ought to be. */
666 /* Keep a pointer to the original picture (and its refcount...). */
667 p_region->picture.p_sys = (picture_sys_t *)p_converted;
668 p_region->picture.pf_release = MosaicReleasePicture;
671 if( p_es->i_x >= 0 && p_es->i_y >= 0 )
673 p_region->i_x = p_es->i_x;
674 p_region->i_y = p_es->i_y;
676 else if( p_sys->i_position == position_offsets )
678 p_region->i_x = p_sys->pi_x_offsets[i_real_index];
679 p_region->i_y = p_sys->pi_y_offsets[i_real_index];
683 if( fmt_out.i_width > col_inner_width ||
684 p_sys->b_ar || p_sys->b_keep )
686 /* we don't have to center the video since it takes the
687 whole rectangle area or it's larger than the rectangle */
688 p_region->i_x = p_sys->i_xoffset
689 + i_col * ( p_sys->i_width / p_sys->i_cols )
690 + ( i_col * p_sys->i_borderw ) / p_sys->i_cols;
694 /* center the video in the dedicated rectangle */
695 p_region->i_x = p_sys->i_xoffset
696 + i_col * ( p_sys->i_width / p_sys->i_cols )
697 + ( i_col * p_sys->i_borderw ) / p_sys->i_cols
698 + ( col_inner_width - fmt_out.i_width ) / 2;
701 if( fmt_out.i_height > row_inner_height
702 || p_sys->b_ar || p_sys->b_keep )
704 /* we don't have to center the video since it takes the
705 whole rectangle area or it's taller than the rectangle */
706 p_region->i_y = p_sys->i_yoffset
707 + i_row * ( p_sys->i_height / p_sys->i_rows )
708 + ( i_row * p_sys->i_borderh ) / p_sys->i_rows;
712 /* center the video in the dedicated rectangle */
713 p_region->i_y = p_sys->i_yoffset
714 + i_row * ( p_sys->i_height / p_sys->i_rows )
715 + ( i_row * p_sys->i_borderh ) / p_sys->i_rows
716 + ( row_inner_height - fmt_out.i_height ) / 2;
719 p_region->i_align = p_sys->i_align;
720 p_region->i_alpha = p_es->i_alpha;
722 if( p_region_prev == NULL )
724 p_spu->p_region = p_region;
728 p_region_prev->p_next = p_region;
731 p_region_prev = p_region;
734 vlc_mutex_unlock( p_sys->p_lock );
735 vlc_mutex_unlock( &p_sys->lock );
740 /*****************************************************************************
741 * Callback to update params on the fly
742 *****************************************************************************/
743 static int MosaicCallback( vlc_object_t *p_this, char const *psz_var,
744 vlc_value_t oldval, vlc_value_t newval,
748 filter_sys_t *p_sys = (filter_sys_t *) p_data;
750 #define VAR_IS( a ) !strcmp( psz_var, CFG_PREFIX a )
751 if( VAR_IS( "alpha" ) )
753 vlc_mutex_lock( &p_sys->lock );
754 msg_Dbg( p_this, "changing alpha from %d/255 to %d/255",
755 p_sys->i_alpha, newval.i_int);
756 p_sys->i_alpha = __MIN( __MAX( newval.i_int, 0 ), 255 );
757 vlc_mutex_unlock( &p_sys->lock );
759 else if( VAR_IS( "height" ) )
761 vlc_mutex_lock( &p_sys->lock );
762 msg_Dbg( p_this, "changing height from %dpx to %dpx",
763 p_sys->i_height, newval.i_int );
764 p_sys->i_height = __MAX( newval.i_int, 0 );
765 vlc_mutex_unlock( &p_sys->lock );
767 else if( VAR_IS( "width" ) )
769 vlc_mutex_lock( &p_sys->lock );
770 msg_Dbg( p_this, "changing width from %dpx to %dpx",
771 p_sys->i_width, newval.i_int );
772 p_sys->i_width = __MAX( newval.i_int, 0 );
773 vlc_mutex_unlock( &p_sys->lock );
775 else if( VAR_IS( "xoffset" ) )
777 vlc_mutex_lock( &p_sys->lock );
778 msg_Dbg( p_this, "changing x offset from %dpx to %dpx",
779 p_sys->i_xoffset, newval.i_int );
780 p_sys->i_xoffset = __MAX( newval.i_int, 0 );
781 vlc_mutex_unlock( &p_sys->lock );
783 else if( VAR_IS( "yoffset" ) )
785 vlc_mutex_lock( &p_sys->lock );
786 msg_Dbg( p_this, "changing y offset from %dpx to %dpx",
787 p_sys->i_yoffset, newval.i_int );
788 p_sys->i_yoffset = __MAX( newval.i_int, 0 );
789 vlc_mutex_unlock( &p_sys->lock );
791 else if( VAR_IS( "align" ) )
793 int i_old = 0, i_new = 0;
794 vlc_mutex_lock( &p_sys->lock );
795 newval.i_int = __MIN( __MAX( newval.i_int, 0 ), 10 );
796 if( newval.i_int == 3 || newval.i_int == 7 )
798 while( pi_align_values[i_old] != p_sys->i_align ) i_old++;
799 while( pi_align_values[i_new] != newval.i_int ) i_new++;
800 msg_Dbg( p_this, "changing alignment from %d (%s) to %d (%s)",
801 p_sys->i_align, ppsz_align_descriptions[i_old],
802 newval.i_int, ppsz_align_descriptions[i_new] );
803 p_sys->i_align = newval.i_int;
804 vlc_mutex_unlock( &p_sys->lock );
806 else if( VAR_IS( "borderw" ) )
808 vlc_mutex_lock( &p_sys->lock );
809 msg_Dbg( p_this, "changing border width from %dpx to %dpx",
810 p_sys->i_borderw, newval.i_int );
811 p_sys->i_borderw = __MAX( newval.i_int, 0 );
812 vlc_mutex_unlock( &p_sys->lock );
814 else if( VAR_IS( "borderh" ) )
816 vlc_mutex_lock( &p_sys->lock );
817 msg_Dbg( p_this, "changing border height from %dpx to %dpx",
818 p_sys->i_borderh, newval.i_int );
819 p_sys->i_borderh = __MAX( newval.i_int, 0 );
820 vlc_mutex_unlock( &p_sys->lock );
822 else if( VAR_IS( "position" ) )
824 if( newval.i_int > 2 || newval.i_int < 0 )
827 "Position is either 0 (%s), 1 (%s) or 2 (%s)",
828 ppsz_pos_descriptions[0],
829 ppsz_pos_descriptions[1],
830 ppsz_pos_descriptions[2] );
834 vlc_mutex_lock( &p_sys->lock );
835 msg_Dbg( p_this, "changing position method from %d (%s) to %d (%s)",
836 p_sys->i_position, ppsz_pos_descriptions[p_sys->i_position],
837 newval.i_int, ppsz_pos_descriptions[newval.i_int]);
838 p_sys->i_position = newval.i_int;
839 vlc_mutex_unlock( &p_sys->lock );
842 else if( VAR_IS( "rows" ) )
844 vlc_mutex_lock( &p_sys->lock );
845 msg_Dbg( p_this, "changing number of rows from %d to %d",
846 p_sys->i_rows, newval.i_int );
847 p_sys->i_rows = __MAX( newval.i_int, 1 );
848 vlc_mutex_unlock( &p_sys->lock );
850 else if( VAR_IS( "cols" ) )
852 vlc_mutex_lock( &p_sys->lock );
853 msg_Dbg( p_this, "changing number of columns from %d to %d",
854 p_sys->i_cols, newval.i_int );
855 p_sys->i_cols = __MAX( newval.i_int, 1 );
856 vlc_mutex_unlock( &p_sys->lock );
858 else if( VAR_IS( "order" ) )
862 vlc_mutex_lock( &p_sys->lock );
863 msg_Dbg( p_this, "Changing mosaic order to %s", newval.psz_string );
865 psz_order = newval.psz_string;
867 while( p_sys->i_order_length-- )
869 free( p_sys->ppsz_order[p_sys->i_order_length] );
871 free( p_sys->ppsz_order );
872 p_sys->ppsz_order = NULL;
876 char *psz_end = NULL;
880 psz_end = strchr( psz_order, ',' );
882 p_sys->ppsz_order = realloc( p_sys->ppsz_order,
883 i_index * sizeof(char *) );
884 p_sys->ppsz_order[i_index - 1] = strndup( psz_order,
885 psz_end - psz_order );
886 psz_order = psz_end+1;
888 p_sys->i_order_length = i_index;
891 vlc_mutex_unlock( &p_sys->lock );
893 else if( VAR_IS( "offsets" ) )
895 vlc_mutex_lock( &p_sys->lock );
896 msg_Info( p_this, "Changing mosaic-offsets to %s", newval.psz_string );
898 if( p_sys->i_offsets_length != 0 )
900 p_sys->i_offsets_length = 0;
901 free( p_sys->pi_x_offsets );
902 free( p_sys->pi_y_offsets );
903 p_sys->pi_x_offsets = NULL;
904 p_sys->pi_y_offsets = NULL;
907 mosaic_ParseSetOffsets( p_this, p_sys, newval.psz_string );
909 vlc_mutex_unlock( &p_sys->lock );
911 else if( VAR_IS( "keep-aspect-ratio" ) )
913 vlc_mutex_lock( &p_sys->lock );
916 msg_Dbg( p_this, "keeping aspect ratio" );
921 msg_Dbg( p_this, "won't keep aspect ratio" );
924 vlc_mutex_unlock( &p_sys->lock );
926 else if( VAR_IS( "keep-picture" ) )
928 vlc_mutex_lock( &p_sys->lock );
929 p_sys->b_keep = newval.b_bool;
930 if ( !p_sys->b_keep && !p_sys->p_image )
932 p_sys->p_image = image_HandlerCreate( p_this );
934 vlc_mutex_unlock( &p_sys->lock );