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>
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 */
62 image_handler_t *p_image;
64 int i_position; /* Mosaic positioning method */
65 bool b_ar; /* Do we keep the aspect ratio ? */
66 bool b_keep; /* Do we keep the original picture format ? */
67 int i_width, i_height; /* Mosaic height and width */
68 int i_cols, i_rows; /* Mosaic rows and cols */
69 int i_align; /* Mosaic alignment in background video */
70 int i_xoffset, i_yoffset; /* Top left corner offset */
71 int i_borderw, i_borderh; /* Border width/height between miniatures */
72 int i_alpha; /* Subfilter alpha blending */
74 char **ppsz_order; /* List of picture-ids */
77 int *pi_x_offsets; /* List of substreams x offsets */
78 int *pi_y_offsets; /* List of substreams y offsets */
84 /*****************************************************************************
86 *****************************************************************************/
87 #define ALPHA_TEXT N_("Transparency")
88 #define ALPHA_LONGTEXT N_( \
89 "Transparency of the mosaic foreground pictures. " \
90 "0 means transparent, 255 opaque (default)." )
92 #define HEIGHT_TEXT N_("Height")
93 #define HEIGHT_LONGTEXT N_( "Total height of the mosaic, in pixels." )
94 #define WIDTH_TEXT N_("Width")
95 #define WIDTH_LONGTEXT N_( "Total width of the mosaic, in pixels." )
97 #define XOFFSET_TEXT N_("Top left corner X coordinate")
98 #define XOFFSET_LONGTEXT N_( \
99 "X Coordinate of the top-left corner of the mosaic.")
100 #define YOFFSET_TEXT N_("Top left corner Y coordinate")
101 #define YOFFSET_LONGTEXT N_( \
102 "Y Coordinate of the top-left corner of the mosaic.")
104 #define BORDERW_TEXT N_("Border width")
105 #define BORDERW_LONGTEXT N_( \
106 "Width in pixels of the border between miniatures." )
107 #define BORDERH_TEXT N_("Border height")
108 #define BORDERH_LONGTEXT N_( \
109 "Height in pixels of the border between miniatures." )
111 #define ALIGN_TEXT N_("Mosaic alignment" )
112 #define ALIGN_LONGTEXT N_( \
113 "You can enforce the mosaic alignment on the video " \
114 "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
115 "also use combinations of these values, eg 6 = top-right).")
117 #define POS_TEXT N_("Positioning method")
118 #define POS_LONGTEXT N_( \
119 "Positioning method for the mosaic. auto: " \
120 "automatically choose the best number of rows and columns. " \
121 "fixed: use the user-defined number of rows and columns. " \
122 "offsets: use the user-defined offsets for each image." )
124 #define ROWS_TEXT N_("Number of rows")
125 #define ROWS_LONGTEXT N_( \
126 "Number of image rows in the mosaic (only used if " \
127 "positioning method is set to \"fixed\")." )
129 #define COLS_TEXT N_("Number of columns")
130 #define COLS_LONGTEXT N_( \
131 "Number of image columns in the mosaic (only used if " \
132 "positioning method is set to \"fixed\"." )
134 #define AR_TEXT N_("Keep aspect ratio")
135 #define AR_LONGTEXT N_( \
136 "Keep the original aspect ratio when resizing " \
138 #define KEEP_TEXT N_("Keep original size")
139 #define KEEP_LONGTEXT N_( \
140 "Keep the original size of mosaic elements." )
142 #define ORDER_TEXT N_("Elements order" )
143 #define ORDER_LONGTEXT N_( \
144 "You can enforce the order of the elements on " \
145 "the mosaic. You must give a comma-separated list of picture ID(s)." \
146 "These IDs are assigned in the \"mosaic-bridge\" module." )
148 #define OFFSETS_TEXT N_("Offsets in order" )
149 #define OFFSETS_LONGTEXT N_( \
150 "You can enforce the (x,y) offsets of the elements on the mosaic " \
151 "(only used if positioning method is set to \"offsets\"). You " \
152 "must give a comma-separated list of coordinates (eg: 10,10,150,10)." )
154 #define DELAY_TEXT N_("Delay")
155 #define DELAY_LONGTEXT N_( \
156 "Pictures coming from the mosaic elements will be delayed " \
157 "according to this value (in milliseconds). For high " \
158 "values you will need to raise caching at input.")
162 position_auto = 0, position_fixed = 1, position_offsets = 2
164 static const int pi_pos_values[] = { 0, 1, 2 };
165 static const char *const ppsz_pos_descriptions[] =
166 { N_("auto"), N_("fixed"), N_("offsets") };
168 static const int pi_align_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
169 static const char *const ppsz_align_descriptions[] =
170 { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
171 N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
173 #define CFG_PREFIX "mosaic-"
176 set_description( N_("Mosaic video sub source") )
177 set_shortname( N_("Mosaic") )
178 set_category( CAT_VIDEO )
179 set_subcategory( SUBCAT_VIDEO_SUBPIC)
180 set_capability( "sub source", 0 )
181 set_callbacks( CreateFilter, DestroyFilter )
183 add_integer_with_range( CFG_PREFIX "alpha", 255, 0, 255,
184 ALPHA_TEXT, ALPHA_LONGTEXT, false )
186 add_integer( CFG_PREFIX "height", 100,
187 HEIGHT_TEXT, HEIGHT_LONGTEXT, false )
188 add_integer( CFG_PREFIX "width", 100,
189 WIDTH_TEXT, WIDTH_LONGTEXT, false )
191 add_integer( CFG_PREFIX "align", 5,
192 ALIGN_TEXT, ALIGN_LONGTEXT, true)
193 change_integer_list( pi_align_values, ppsz_align_descriptions )
195 add_integer( CFG_PREFIX "xoffset", 0,
196 XOFFSET_TEXT, XOFFSET_LONGTEXT, true )
197 add_integer( CFG_PREFIX "yoffset", 0,
198 YOFFSET_TEXT, YOFFSET_LONGTEXT, true )
200 add_integer( CFG_PREFIX "borderw", 0,
201 BORDERW_TEXT, BORDERW_LONGTEXT, true )
202 add_integer( CFG_PREFIX "borderh", 0,
203 BORDERH_TEXT, BORDERH_LONGTEXT, true )
205 add_integer( CFG_PREFIX "position", 0,
206 POS_TEXT, POS_LONGTEXT, false )
207 change_integer_list( pi_pos_values, ppsz_pos_descriptions )
208 add_integer( CFG_PREFIX "rows", 2,
209 ROWS_TEXT, ROWS_LONGTEXT, false )
210 add_integer( CFG_PREFIX "cols", 2,
211 COLS_TEXT, COLS_LONGTEXT, false )
213 add_bool( CFG_PREFIX "keep-aspect-ratio", false,
214 AR_TEXT, AR_LONGTEXT, false )
215 add_bool( CFG_PREFIX "keep-picture", false,
216 KEEP_TEXT, KEEP_LONGTEXT, false )
218 add_string( CFG_PREFIX "order", "",
219 ORDER_TEXT, ORDER_LONGTEXT, false )
221 add_string( CFG_PREFIX "offsets", "",
222 OFFSETS_TEXT, OFFSETS_LONGTEXT, false )
224 add_integer( CFG_PREFIX "delay", 0, DELAY_TEXT, DELAY_LONGTEXT,
228 static const char *const ppsz_filter_options[] = {
229 "alpha", "height", "width", "align", "xoffset", "yoffset",
230 "borderw", "borderh", "position", "rows", "cols",
231 "keep-aspect-ratio", "keep-picture", "order", "offsets",
235 /*****************************************************************************
236 * mosaic_ParseSetOffsets:
237 * parse the "--mosaic-offsets x1,y1,x2,y2,x3,y3" parameter
238 * and set the corresponding struct filter_sys_t entries.
239 *****************************************************************************/
240 static void mosaic_ParseSetOffsets( vlc_object_t *p_this,
246 char *psz_end = NULL;
252 p_sys->pi_x_offsets = xrealloc( p_sys->pi_x_offsets,
253 i_index * sizeof(int) );
254 p_sys->pi_x_offsets[i_index - 1] = atoi( psz_offsets );
255 psz_end = strchr( psz_offsets, ',' );
256 psz_offsets = psz_end + 1;
258 p_sys->pi_y_offsets = xrealloc( p_sys->pi_y_offsets,
259 i_index * sizeof(int) );
260 p_sys->pi_y_offsets[i_index - 1] = atoi( psz_offsets );
261 psz_end = strchr( psz_offsets, ',' );
262 psz_offsets = psz_end + 1;
264 msg_Dbg( p_this, CFG_PREFIX "offset: id %d, x=%d, y=%d",
265 i_index, p_sys->pi_x_offsets[i_index - 1],
266 p_sys->pi_y_offsets[i_index - 1] );
269 p_sys->i_offsets_length = i_index;
272 #define mosaic_ParseSetOffsets( a, b, c ) \
273 mosaic_ParseSetOffsets( VLC_OBJECT( a ), b, c )
275 /*****************************************************************************
276 * CreateFiler: allocate mosaic video filter
277 *****************************************************************************/
278 static int CreateFilter( vlc_object_t *p_this )
280 filter_t *p_filter = (filter_t *)p_this;
282 char *psz_order, *_psz_order;
287 /* Allocate structure */
288 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
292 p_filter->pf_sub_source = Filter;
294 vlc_mutex_init( &p_sys->lock );
295 vlc_mutex_lock( &p_sys->lock );
297 config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
300 #define GET_VAR( name, min, max ) \
301 i_command = var_CreateGetIntegerCommand( p_filter, CFG_PREFIX #name ); \
302 p_sys->i_##name = VLC_CLIP( i_command, min, max ); \
303 var_AddCallback( p_filter, CFG_PREFIX #name, MosaicCallback, p_sys );
305 GET_VAR( width, 0, INT_MAX );
306 GET_VAR( height, 0, INT_MAX );
307 GET_VAR( xoffset, 0, INT_MAX );
308 GET_VAR( yoffset, 0, INT_MAX );
310 GET_VAR( align, 0, 10 );
311 if( p_sys->i_align == 3 || p_sys->i_align == 7 )
314 GET_VAR( borderw, 0, INT_MAX );
315 GET_VAR( borderh, 0, INT_MAX );
316 GET_VAR( rows, 1, INT_MAX );
317 GET_VAR( cols, 1, INT_MAX );
318 GET_VAR( alpha, 0, 255 );
319 GET_VAR( position, 0, 2 );
320 GET_VAR( delay, 100, INT_MAX );
322 p_sys->i_delay *= 1000;
324 p_sys->b_ar = var_CreateGetBoolCommand( p_filter,
325 CFG_PREFIX "keep-aspect-ratio" );
326 var_AddCallback( p_filter, CFG_PREFIX "keep-aspect-ratio", MosaicCallback,
329 p_sys->b_keep = var_CreateGetBoolCommand( p_filter,
330 CFG_PREFIX "keep-picture" );
331 if ( !p_sys->b_keep )
333 p_sys->p_image = image_HandlerCreate( p_filter );
336 p_sys->i_order_length = 0;
337 p_sys->ppsz_order = NULL;
338 psz_order = var_CreateGetStringCommand( p_filter, CFG_PREFIX "order" );
339 _psz_order = psz_order;
340 var_AddCallback( p_filter, CFG_PREFIX "order", MosaicCallback, p_sys );
344 char *psz_end = NULL;
348 psz_end = strchr( psz_order, ',' );
350 p_sys->ppsz_order = xrealloc( p_sys->ppsz_order,
351 i_index * sizeof(char *) );
352 p_sys->ppsz_order[i_index - 1] = strndup( psz_order,
353 psz_end - psz_order );
354 psz_order = psz_end+1;
356 p_sys->i_order_length = i_index;
361 /* Manage specific offsets for substreams */
362 psz_offsets = var_CreateGetStringCommand( p_filter, CFG_PREFIX "offsets" );
363 p_sys->i_offsets_length = 0;
364 p_sys->pi_x_offsets = NULL;
365 p_sys->pi_y_offsets = NULL;
366 mosaic_ParseSetOffsets( p_filter, p_sys, psz_offsets );
368 var_AddCallback( p_filter, CFG_PREFIX "offsets", MosaicCallback, p_sys );
370 vlc_mutex_unlock( &p_sys->lock );
375 /*****************************************************************************
376 * DestroyFilter: destroy mosaic video filter
377 *****************************************************************************/
378 static void DestroyFilter( vlc_object_t *p_this )
380 filter_t *p_filter = (filter_t*)p_this;
381 filter_sys_t *p_sys = p_filter->p_sys;
383 #define DEL_CB( name ) \
384 var_DelCallback( p_filter, CFG_PREFIX #name, MosaicCallback, p_sys )
400 DEL_CB( keep-aspect-ratio );
406 image_HandlerDelete( p_sys->p_image );
409 if( p_sys->i_order_length )
411 for( int i_index = 0; i_index < p_sys->i_order_length; i_index++ )
413 free( p_sys->ppsz_order[i_index] );
415 free( p_sys->ppsz_order );
417 if( p_sys->i_offsets_length )
419 free( p_sys->pi_x_offsets );
420 free( p_sys->pi_y_offsets );
421 p_sys->i_offsets_length = 0;
424 vlc_mutex_destroy( &p_sys->lock );
428 /*****************************************************************************
430 *****************************************************************************/
431 static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
433 filter_sys_t *p_sys = p_filter->p_sys;
438 int i_index, i_real_index, i_row, i_col;
439 int i_greatest_real_index_used = p_sys->i_order_length - 1;
441 unsigned int col_inner_width, row_inner_height;
443 subpicture_region_t *p_region;
444 subpicture_region_t *p_region_prev = NULL;
446 /* Allocate the subpicture internal data. */
447 p_spu = filter_NewSubpicture( p_filter );
451 /* Initialize subpicture */
452 p_spu->i_channel = 0;
453 p_spu->i_start = date;
455 p_spu->b_ephemer = true;
456 p_spu->i_alpha = p_sys->i_alpha;
457 p_spu->b_absolute = false;
459 vlc_mutex_lock( &p_sys->lock );
460 vlc_global_lock( VLC_MOSAIC_MUTEX );
462 p_bridge = GetBridge( p_filter );
463 if ( p_bridge == NULL )
465 vlc_global_unlock( VLC_MOSAIC_MUTEX );
466 vlc_mutex_unlock( &p_sys->lock );
470 if ( p_sys->i_position == position_offsets )
472 /* If we have either too much or not enough offsets, fall-back
473 * to automatic positioning. */
474 if ( p_sys->i_offsets_length != p_sys->i_order_length )
477 "Number of specified offsets (%d) does not match number "
478 "of input substreams in mosaic-order (%d), falling back "
479 "to mosaic-position=0",
480 p_sys->i_offsets_length, p_sys->i_order_length );
481 p_sys->i_position = position_auto;
485 if ( p_sys->i_position == position_auto )
487 int i_numpics = p_sys->i_order_length; /* keep slots and all */
488 for ( i_index = 0; i_index < p_bridge->i_es_num; i_index++ )
490 bridged_es_t *p_es = p_bridge->pp_es[i_index];
491 if ( !p_es->b_empty )
494 if( p_sys->i_order_length && p_es->psz_id != NULL )
496 /* We also want to leave slots for images given in
497 * mosaic-order that are not available in p_vout_picture */
499 for( i = 0; i < p_sys->i_order_length ; i++ )
501 if( !strcmp( p_sys->ppsz_order[i], p_es->psz_id ) )
511 p_sys->i_rows = ceil(sqrt( (double)i_numpics ));
512 p_sys->i_cols = ( i_numpics % p_sys->i_rows == 0 ?
513 i_numpics / p_sys->i_rows :
514 i_numpics / p_sys->i_rows + 1 );
517 col_inner_width = ( ( p_sys->i_width - ( p_sys->i_cols - 1 )
518 * p_sys->i_borderw ) / p_sys->i_cols );
519 row_inner_height = ( ( p_sys->i_height - ( p_sys->i_rows - 1 )
520 * p_sys->i_borderh ) / p_sys->i_rows );
524 for ( i_index = 0; i_index < p_bridge->i_es_num; i_index++ )
526 bridged_es_t *p_es = p_bridge->pp_es[i_index];
527 video_format_t fmt_in, fmt_out;
528 picture_t *p_converted;
530 memset( &fmt_in, 0, sizeof( video_format_t ) );
531 memset( &fmt_out, 0, sizeof( video_format_t ) );
536 while ( p_es->p_picture != NULL
537 && p_es->p_picture->date + p_sys->i_delay < date )
539 if ( p_es->p_picture->p_next != NULL )
541 picture_t *p_next = p_es->p_picture->p_next;
542 picture_Release( p_es->p_picture );
543 p_es->p_picture = p_next;
545 else if ( p_es->p_picture->date + p_sys->i_delay + BLANK_DELAY <
549 picture_Release( p_es->p_picture );
550 p_es->p_picture = NULL;
551 p_es->pp_last = &p_es->p_picture;
556 msg_Dbg( p_filter, "too late picture for %s (%"PRId64 ")",
558 date - p_es->p_picture->date - p_sys->i_delay );
563 if ( p_es->p_picture == NULL )
566 if ( p_sys->i_order_length == 0 )
573 for ( i = 0; i <= p_sys->i_order_length; i++ )
575 if ( i == p_sys->i_order_length ) break;
576 if ( strcmp( p_es->psz_id, p_sys->ppsz_order[i] ) == 0 )
582 if ( i == p_sys->i_order_length )
583 i_real_index = ++i_greatest_real_index_used;
585 i_row = ( i_real_index / p_sys->i_cols ) % p_sys->i_rows;
586 i_col = i_real_index % p_sys->i_cols ;
588 if ( !p_sys->b_keep )
590 /* Convert the images */
591 fmt_in.i_chroma = p_es->p_picture->format.i_chroma;
592 fmt_in.i_height = p_es->p_picture->format.i_height;
593 fmt_in.i_width = p_es->p_picture->format.i_width;
595 if( fmt_in.i_chroma == VLC_CODEC_YUVA ||
596 fmt_in.i_chroma == VLC_CODEC_RGBA )
597 fmt_out.i_chroma = VLC_CODEC_YUVA;
599 fmt_out.i_chroma = VLC_CODEC_I420;
600 fmt_out.i_width = col_inner_width;
601 fmt_out.i_height = row_inner_height;
603 if( p_sys->b_ar ) /* keep aspect ratio */
605 if( (float)fmt_out.i_width / (float)fmt_out.i_height
606 > (float)fmt_in.i_width / (float)fmt_in.i_height )
608 fmt_out.i_width = ( fmt_out.i_height * fmt_in.i_width )
613 fmt_out.i_height = ( fmt_out.i_width * fmt_in.i_height )
618 fmt_out.i_visible_width = fmt_out.i_width;
619 fmt_out.i_visible_height = fmt_out.i_height;
621 p_converted = image_Convert( p_sys->p_image, p_es->p_picture,
626 "image resizing and chroma conversion failed" );
632 p_converted = p_es->p_picture;
633 fmt_in.i_width = fmt_out.i_width = p_converted->format.i_width;
634 fmt_in.i_height = fmt_out.i_height = p_converted->format.i_height;
635 fmt_in.i_chroma = fmt_out.i_chroma = p_converted->format.i_chroma;
636 fmt_out.i_visible_width = fmt_out.i_width;
637 fmt_out.i_visible_height = fmt_out.i_height;
640 p_region = subpicture_region_New( &fmt_out );
641 /* FIXME the copy is probably not needed anymore */
643 picture_Copy( p_region->p_picture, p_converted );
645 picture_Release( p_converted );
649 msg_Err( p_filter, "cannot allocate SPU region" );
650 p_filter->pf_sub_buffer_del( p_filter, p_spu );
651 vlc_global_unlock( VLC_MOSAIC_MUTEX );
652 vlc_mutex_unlock( &p_sys->lock );
656 if( p_es->i_x >= 0 && p_es->i_y >= 0 )
658 p_region->i_x = p_es->i_x;
659 p_region->i_y = p_es->i_y;
661 else if( p_sys->i_position == position_offsets )
663 p_region->i_x = p_sys->pi_x_offsets[i_real_index];
664 p_region->i_y = p_sys->pi_y_offsets[i_real_index];
668 if( fmt_out.i_width > col_inner_width ||
669 p_sys->b_ar || p_sys->b_keep )
671 /* we don't have to center the video since it takes the
672 whole rectangle area or it's larger than the rectangle */
673 p_region->i_x = p_sys->i_xoffset
674 + i_col * ( p_sys->i_width / p_sys->i_cols )
675 + ( i_col * p_sys->i_borderw ) / p_sys->i_cols;
679 /* center the video in the dedicated rectangle */
680 p_region->i_x = p_sys->i_xoffset
681 + i_col * ( p_sys->i_width / p_sys->i_cols )
682 + ( i_col * p_sys->i_borderw ) / p_sys->i_cols
683 + ( col_inner_width - fmt_out.i_width ) / 2;
686 if( fmt_out.i_height > row_inner_height
687 || p_sys->b_ar || p_sys->b_keep )
689 /* we don't have to center the video since it takes the
690 whole rectangle area or it's taller than the rectangle */
691 p_region->i_y = p_sys->i_yoffset
692 + i_row * ( p_sys->i_height / p_sys->i_rows )
693 + ( i_row * p_sys->i_borderh ) / p_sys->i_rows;
697 /* center the video in the dedicated rectangle */
698 p_region->i_y = p_sys->i_yoffset
699 + i_row * ( p_sys->i_height / p_sys->i_rows )
700 + ( i_row * p_sys->i_borderh ) / p_sys->i_rows
701 + ( row_inner_height - fmt_out.i_height ) / 2;
704 p_region->i_align = p_sys->i_align;
705 p_region->i_alpha = p_es->i_alpha;
707 if( p_region_prev == NULL )
709 p_spu->p_region = p_region;
713 p_region_prev->p_next = p_region;
716 p_region_prev = p_region;
719 vlc_global_unlock( VLC_MOSAIC_MUTEX );
720 vlc_mutex_unlock( &p_sys->lock );
725 /*****************************************************************************
726 * Callback to update params on the fly
727 *****************************************************************************/
728 static int MosaicCallback( vlc_object_t *p_this, char const *psz_var,
729 vlc_value_t oldval, vlc_value_t newval,
733 filter_sys_t *p_sys = (filter_sys_t *) p_data;
735 #define VAR_IS( a ) !strcmp( psz_var, CFG_PREFIX a )
736 if( VAR_IS( "alpha" ) )
738 vlc_mutex_lock( &p_sys->lock );
739 msg_Dbg( p_this, "changing alpha from %d/255 to %d/255",
740 p_sys->i_alpha, (int)newval.i_int);
741 p_sys->i_alpha = VLC_CLIP( newval.i_int, 0, 255 );
742 vlc_mutex_unlock( &p_sys->lock );
744 else if( VAR_IS( "height" ) )
746 vlc_mutex_lock( &p_sys->lock );
747 msg_Dbg( p_this, "changing height from %dpx to %dpx",
748 p_sys->i_height, (int)newval.i_int );
749 p_sys->i_height = __MAX( newval.i_int, 0 );
750 vlc_mutex_unlock( &p_sys->lock );
752 else if( VAR_IS( "width" ) )
754 vlc_mutex_lock( &p_sys->lock );
755 msg_Dbg( p_this, "changing width from %dpx to %dpx",
756 p_sys->i_width, (int)newval.i_int );
757 p_sys->i_width = __MAX( newval.i_int, 0 );
758 vlc_mutex_unlock( &p_sys->lock );
760 else if( VAR_IS( "xoffset" ) )
762 vlc_mutex_lock( &p_sys->lock );
763 msg_Dbg( p_this, "changing x offset from %dpx to %dpx",
764 p_sys->i_xoffset, (int)newval.i_int );
765 p_sys->i_xoffset = __MAX( newval.i_int, 0 );
766 vlc_mutex_unlock( &p_sys->lock );
768 else if( VAR_IS( "yoffset" ) )
770 vlc_mutex_lock( &p_sys->lock );
771 msg_Dbg( p_this, "changing y offset from %dpx to %dpx",
772 p_sys->i_yoffset, (int)newval.i_int );
773 p_sys->i_yoffset = __MAX( newval.i_int, 0 );
774 vlc_mutex_unlock( &p_sys->lock );
776 else if( VAR_IS( "align" ) )
778 int i_old = 0, i_new = 0;
779 vlc_mutex_lock( &p_sys->lock );
780 newval.i_int = VLC_CLIP( newval.i_int, 0, 10 );
781 if( newval.i_int == 3 || newval.i_int == 7 )
783 while( pi_align_values[i_old] != p_sys->i_align ) i_old++;
784 while( pi_align_values[i_new] != newval.i_int ) i_new++;
785 msg_Dbg( p_this, "changing alignment from %d (%s) to %d (%s)",
786 p_sys->i_align, ppsz_align_descriptions[i_old],
787 (int)newval.i_int, ppsz_align_descriptions[i_new] );
788 p_sys->i_align = newval.i_int;
789 vlc_mutex_unlock( &p_sys->lock );
791 else if( VAR_IS( "borderw" ) )
793 vlc_mutex_lock( &p_sys->lock );
794 msg_Dbg( p_this, "changing border width from %dpx to %dpx",
795 p_sys->i_borderw, (int)newval.i_int );
796 p_sys->i_borderw = __MAX( newval.i_int, 0 );
797 vlc_mutex_unlock( &p_sys->lock );
799 else if( VAR_IS( "borderh" ) )
801 vlc_mutex_lock( &p_sys->lock );
802 msg_Dbg( p_this, "changing border height from %dpx to %dpx",
803 p_sys->i_borderh, (int)newval.i_int );
804 p_sys->i_borderh = __MAX( newval.i_int, 0 );
805 vlc_mutex_unlock( &p_sys->lock );
807 else if( VAR_IS( "position" ) )
809 if( newval.i_int > 2 || newval.i_int < 0 )
812 "Position is either 0 (%s), 1 (%s) or 2 (%s)",
813 ppsz_pos_descriptions[0],
814 ppsz_pos_descriptions[1],
815 ppsz_pos_descriptions[2] );
819 vlc_mutex_lock( &p_sys->lock );
820 msg_Dbg( p_this, "changing position method from %d (%s) to %d (%s)",
821 p_sys->i_position, ppsz_pos_descriptions[p_sys->i_position],
822 (int)newval.i_int, ppsz_pos_descriptions[newval.i_int]);
823 p_sys->i_position = newval.i_int;
824 vlc_mutex_unlock( &p_sys->lock );
827 else if( VAR_IS( "rows" ) )
829 vlc_mutex_lock( &p_sys->lock );
830 msg_Dbg( p_this, "changing number of rows from %d to %d",
831 p_sys->i_rows, (int)newval.i_int );
832 p_sys->i_rows = __MAX( newval.i_int, 1 );
833 vlc_mutex_unlock( &p_sys->lock );
835 else if( VAR_IS( "cols" ) )
837 vlc_mutex_lock( &p_sys->lock );
838 msg_Dbg( p_this, "changing number of columns from %d to %d",
839 p_sys->i_cols, (int)newval.i_int );
840 p_sys->i_cols = __MAX( newval.i_int, 1 );
841 vlc_mutex_unlock( &p_sys->lock );
843 else if( VAR_IS( "order" ) )
847 vlc_mutex_lock( &p_sys->lock );
848 msg_Dbg( p_this, "Changing mosaic order to %s", newval.psz_string );
850 psz_order = newval.psz_string;
852 while( p_sys->i_order_length-- )
854 free( p_sys->ppsz_order[p_sys->i_order_length] );
856 free( p_sys->ppsz_order );
857 p_sys->ppsz_order = NULL;
861 char *psz_end = NULL;
865 psz_end = strchr( psz_order, ',' );
867 p_sys->ppsz_order = xrealloc( p_sys->ppsz_order,
868 i_index * sizeof(char *) );
869 p_sys->ppsz_order[i_index - 1] = strndup( psz_order,
870 psz_end - psz_order );
871 psz_order = psz_end+1;
873 p_sys->i_order_length = i_index;
876 vlc_mutex_unlock( &p_sys->lock );
878 else if( VAR_IS( "offsets" ) )
880 vlc_mutex_lock( &p_sys->lock );
881 msg_Info( p_this, "Changing mosaic-offsets to %s", newval.psz_string );
883 if( p_sys->i_offsets_length != 0 )
885 p_sys->i_offsets_length = 0;
886 free( p_sys->pi_x_offsets );
887 free( p_sys->pi_y_offsets );
888 p_sys->pi_x_offsets = NULL;
889 p_sys->pi_y_offsets = NULL;
892 mosaic_ParseSetOffsets( p_this, p_sys, newval.psz_string );
894 vlc_mutex_unlock( &p_sys->lock );
896 else if( VAR_IS( "keep-aspect-ratio" ) )
898 vlc_mutex_lock( &p_sys->lock );
901 msg_Dbg( p_this, "keeping aspect ratio" );
906 msg_Dbg( p_this, "won't keep aspect ratio" );
909 vlc_mutex_unlock( &p_sys->lock );
911 else if( VAR_IS( "keep-picture" ) )
913 vlc_mutex_lock( &p_sys->lock );
914 p_sys->b_keep = newval.b_bool;
915 if ( !p_sys->b_keep && !p_sys->p_image )
917 p_sys->p_image = image_HandlerCreate( p_this );
919 vlc_mutex_unlock( &p_sys->lock );