1 /*****************************************************************************
2 * mosaic.c : Mosaic video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2004-2005 the VideoLAN team
7 * Authors: Antoine Cellerier <dionoea@via.ecp.fr>
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 *****************************************************************************/
28 #include <stdlib.h> /* malloc(), free() */
36 # include <limits.h> /* INT_MAX */
39 #include "vlc_filter.h"
40 #include "vlc_image.h"
44 #define BLANK_DELAY I64C(1000000)
46 /*****************************************************************************
48 *****************************************************************************/
49 static int CreateFilter ( vlc_object_t * );
50 static void DestroyFilter ( vlc_object_t * );
52 static subpicture_t *Filter( filter_t *, mtime_t );
54 static int MosaicCallback( vlc_object_t *, char const *, vlc_value_t,
55 vlc_value_t, void * );
57 /*****************************************************************************
58 * filter_sys_t : filter descriptor
59 *****************************************************************************/
65 image_handler_t *p_image;
68 int i_position; /* mosaic positioning method */
69 vlc_bool_t b_ar; /* do we keep the aspect ratio ? */
70 vlc_bool_t b_keep; /* do we keep the original picture format ? */
71 int i_width, i_height; /* mosaic height and width */
72 int i_cols, i_rows; /* mosaic rows and cols */
73 int i_align; /* mosaic alignment in background video */
74 int i_xoffset, i_yoffset; /* top left corner offset */
75 int i_vborder, i_hborder; /* border width/height between miniatures */
76 int i_alpha; /* subfilter alpha blending */
78 vlc_bool_t b_bs; /* Bluescreen vars */
79 int i_bsu, i_bsv, i_bsut, i_bsvt;
81 char **ppsz_order; /* list of picture-id */
87 /*****************************************************************************
89 *****************************************************************************/
90 #define ALPHA_TEXT N_("Transparency")
91 #define ALPHA_LONGTEXT N_("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_("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_("Y Coordinate of the top-left corner of the mosaic.")
103 #define VBORDER_TEXT N_("Vertical border width")
104 #define VBORDER_LONGTEXT N_( "Width in pixels of the border than can be "\
105 "drawn vertically around the mosaic." )
106 #define HBORDER_TEXT N_("Horizontal border width")
107 #define HBORDER_LONGTEXT N_( "Width in pixels of the border than can "\
108 "be drawn horizontally around the mosaic." )
110 #define ALIGN_TEXT N_("Mosaic alignment" )
111 #define ALIGN_LONGTEXT N_( \
112 "You can enforce the mosaic alignment on the video " \
113 "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
114 "also use combinations of these values, eg 6 = top-right).")
116 #define POS_TEXT N_("Positioning method")
117 #define POS_LONGTEXT N_("Positioning method for the mosaic. auto: " \
118 "automatically choose the best number of rows and columns. " \
119 "fixed: use the user-defined number of rows and columns.")
121 /// \bug [String] missing closing parenthesis
122 #define ROWS_TEXT N_("Number of rows")
123 #define ROWS_LONGTEXT N_("Number of image rows in the mosaic (only used if "\
124 "positionning method is set to \"fixed\"." )
125 #define COLS_TEXT N_("Number of columns")
126 #define COLS_LONGTEXT N_("Number of image columns in the mosaic (only used if "\
127 "positionning method is set to \"fixed\"." )
129 #define AR_TEXT N_("Keep aspect ratio")
130 #define AR_LONGTEXT N_("Keep the original aspect ratio when resizing " \
132 #define KEEP_TEXT N_("Keep original size")
133 #define KEEP_LONGTEXT N_("Keep the original size of mosaic elements." )
135 #define ORDER_TEXT N_("Elements order" )
136 #define ORDER_LONGTEXT N_( "You can enforce the order of the elements on " \
137 "the mosaic. You must give a comma-separated list of picture ID(s)." \
138 "These IDs are assigned in the \"mosaic-bridge\" module." )
140 #define DELAY_TEXT N_("Delay")
141 #define DELAY_LONGTEXT N_("Pictures coming from the mosaic elements " \
142 "will be delayed according to this value (in milliseconds). For high " \
143 "values you will need to raise caching at input.")
145 #define BLUESCREEN_TEXT N_("Bluescreen" )
146 #define BLUESCREEN_LONGTEXT N_( "This effect, also known as \"greenscreen\" "\
147 "or \"chroma key\" blends the \"blue parts\" of the foreground images of " \
148 "the mosaic on the background (like wheather forecast presenters). You " \
149 "can choose the \"key\" color for blending (blue by default)." )
151 #define BLUESCREENU_TEXT N_("Bluescreen U value")
152 #define BLUESCREENU_LONGTEXT N_("\"U\" value for the bluescreen key color " \
153 "(in YUV values). From 0 to 255. Defaults to 120 for blue." )
154 #define BLUESCREENV_TEXT N_("Bluescreen V value")
155 #define BLUESCREENV_LONGTEXT N_("\"V\" value for the bluescreen key color " \
156 "(in YUV values). From 0 to 255. Defaults to 90 for blue." )
157 #define BLUESCREENUTOL_TEXT N_("Bluescreen U tolerance")
158 #define BLUESCREENUTOL_LONGTEXT N_("Tolerance of the bluescreen blender " \
159 "on color variations for the U plane. A value between 10 and 20 " \
161 #define BLUESCREENVTOL_TEXT N_("Bluescreen V tolerance")
162 #define BLUESCREENVTOL_LONGTEXT N_("Tolerance of the bluescreen blender " \
163 "on color variations for the V plane. A value between 10 and 20 " \
166 static int pi_pos_values[] = { 0, 1 };
167 static char * ppsz_pos_descriptions[] =
168 { N_("auto"), N_("fixed") };
170 static int pi_align_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
171 static char *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") };
177 set_description( N_("Mosaic video sub filter") );
178 set_shortname( N_("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( "mosaic-alpha", 255, NULL, ALPHA_TEXT, ALPHA_LONGTEXT, VLC_FALSE );
185 add_integer( "mosaic-height", 100, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT, VLC_FALSE );
186 add_integer( "mosaic-width", 100, NULL, WIDTH_TEXT, WIDTH_LONGTEXT, VLC_FALSE );
187 add_integer( "mosaic-align", 5, NULL, ALIGN_TEXT, ALIGN_LONGTEXT, VLC_TRUE);
188 change_integer_list( pi_align_values, ppsz_align_descriptions, 0 );
189 add_integer( "mosaic-xoffset", 0, NULL, XOFFSET_TEXT, XOFFSET_LONGTEXT, VLC_TRUE );
190 add_integer( "mosaic-yoffset", 0, NULL, YOFFSET_TEXT, YOFFSET_LONGTEXT, VLC_TRUE );
191 add_integer( "mosaic-vborder", 0, NULL, VBORDER_TEXT, VBORDER_LONGTEXT, VLC_TRUE );
192 add_integer( "mosaic-hborder", 0, NULL, HBORDER_TEXT, HBORDER_LONGTEXT, VLC_TRUE );
194 add_integer( "mosaic-position", 0, NULL, POS_TEXT, POS_LONGTEXT, VLC_FALSE );
195 change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 );
196 add_integer( "mosaic-rows", 2, NULL, ROWS_TEXT, ROWS_LONGTEXT, VLC_FALSE );
197 add_integer( "mosaic-cols", 2, NULL, COLS_TEXT, COLS_LONGTEXT, VLC_FALSE );
198 add_bool( "mosaic-keep-aspect-ratio", 0, NULL, AR_TEXT, AR_LONGTEXT, VLC_FALSE );
199 add_bool( "mosaic-keep-picture", 0, NULL, KEEP_TEXT, KEEP_LONGTEXT, VLC_FALSE );
200 add_string( "mosaic-order", "", NULL, ORDER_TEXT, ORDER_LONGTEXT, VLC_FALSE );
202 add_integer( "mosaic-delay", 0, NULL, DELAY_TEXT, DELAY_LONGTEXT,
205 add_bool( "mosaic-bs", 0, NULL, BLUESCREEN_TEXT,
206 BLUESCREEN_LONGTEXT, VLC_FALSE );
207 add_integer( "mosaic-bsu", 120, NULL, BLUESCREENU_TEXT,
208 BLUESCREENU_LONGTEXT, VLC_FALSE );
209 add_integer( "mosaic-bsv", 90, NULL, BLUESCREENV_TEXT,
210 BLUESCREENV_LONGTEXT, VLC_FALSE );
211 add_integer( "mosaic-bsut", 17, NULL, BLUESCREENUTOL_TEXT,
212 BLUESCREENUTOL_LONGTEXT, VLC_FALSE );
213 add_integer( "mosaic-bsvt", 17, NULL, BLUESCREENVTOL_TEXT,
214 BLUESCREENVTOL_LONGTEXT, VLC_FALSE );
216 var_Create( p_module->p_libvlc_global, "mosaic-lock", VLC_VAR_MUTEX );
220 /*****************************************************************************
221 * CreateFiler: allocate mosaic video filter
222 *****************************************************************************/
223 static int CreateFilter( vlc_object_t *p_this )
225 filter_t *p_filter = (filter_t *)p_this;
227 libvlc_global_data_t *p_libvlc_global = p_filter->p_libvlc_global;
232 /* The mosaic thread is more important than the decoder threads */
233 vlc_thread_set_priority( p_this, VLC_THREAD_PRIORITY_OUTPUT );
235 /* Allocate structure */
236 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
239 msg_Err( p_filter, "out of memory" );
243 p_filter->pf_sub_filter = Filter;
246 vlc_mutex_init( p_filter, &p_sys->lock );
247 vlc_mutex_lock( &p_sys->lock );
249 var_Get( p_libvlc_global, "mosaic-lock", &val );
250 p_sys->p_lock = val.p_address;
252 #define GET_VAR( name, min, max ) \
253 p_sys->i_##name = __MIN( max, __MAX( min, \
254 var_CreateGetInteger( p_filter, "mosaic-" #name ) ) ); \
255 var_Destroy( p_filter, "mosaic-" #name ); \
256 var_Create( p_libvlc_global, "mosaic-" #name, VLC_VAR_INTEGER ); \
257 var_SetInteger( p_libvlc_global, "mosaic-" #name, p_sys->i_##name ); \
258 var_AddCallback( p_libvlc_global, "mosaic-" #name, MosaicCallback, p_sys );
260 GET_VAR( width, 0, INT_MAX );
261 GET_VAR( height, 0, INT_MAX );
262 GET_VAR( xoffset, 0, INT_MAX );
263 GET_VAR( yoffset, 0, INT_MAX );
265 p_sys->i_align = __MIN( 10, __MAX( 0, var_CreateGetInteger( p_filter, "mosaic-align" ) ) );
266 if( p_sys->i_align == 3 || p_sys->i_align == 7 )
268 var_Destroy( p_filter, "mosaic-align" );
269 var_Create( p_libvlc_global, "mosaic-align", VLC_VAR_INTEGER );
270 var_SetInteger( p_libvlc_global, "mosaic-align", p_sys->i_align );
271 var_AddCallback( p_libvlc_global, "mosaic-align", MosaicCallback, p_sys );
273 GET_VAR( vborder, 0, INT_MAX );
274 GET_VAR( hborder, 0, INT_MAX );
275 GET_VAR( rows, 1, INT_MAX );
276 GET_VAR( cols, 1, INT_MAX );
277 GET_VAR( alpha, 0, 255 );
278 GET_VAR( position, 0, 1 );
279 GET_VAR( delay, 100, INT_MAX );
280 p_sys->i_delay *= 1000;
282 p_sys->b_ar = var_CreateGetBool( p_filter, "mosaic-keep-aspect-ratio" );
283 var_Destroy( p_filter, "mosaic-keep-aspect-ratio" );
284 var_Create( p_libvlc_global, "mosaic-keep-aspect-ratio", VLC_VAR_INTEGER );
285 var_SetBool( p_libvlc_global, "mosaic-keep-aspect-ratio", p_sys->b_ar );
286 var_AddCallback( p_libvlc_global, "mosaic-keep-aspect-ratio", MosaicCallback,
289 p_sys->b_keep = var_CreateGetBool( p_filter, "mosaic-keep-picture" );
290 if ( !p_sys->b_keep )
292 p_sys->p_image = image_HandlerCreate( p_filter );
295 p_sys->i_order_length = 0;
296 p_sys->ppsz_order = NULL;
297 psz_order = var_CreateGetString( p_filter, "mosaic-order" );
299 var_Create( p_libvlc_global, "mosaic-order", VLC_VAR_STRING);
300 var_AddCallback( p_libvlc_global, "mosaic-order", MosaicCallback, p_sys );
302 if( psz_order[0] != 0 )
304 char *psz_end = NULL;
308 psz_end = strchr( psz_order, ',' );
310 p_sys->ppsz_order = realloc( p_sys->ppsz_order,
311 i_index * sizeof(char *) );
312 p_sys->ppsz_order[i_index - 1] = strndup( psz_order,
313 psz_end - psz_order );
314 psz_order = psz_end+1;
315 } while( NULL != psz_end );
316 p_sys->i_order_length = i_index;
319 /* Bluescreen specific stuff */
320 GET_VAR( bsu, 0x00, 0xff );
321 GET_VAR( bsv, 0x00, 0xff );
322 GET_VAR( bsut, 0x00, 0xff );
323 GET_VAR( bsvt, 0x00, 0xff );
324 p_sys->b_bs = var_CreateGetBool( p_filter, "mosaic-bs" );
325 var_Destroy( p_filter, "mosaic-bs" );
326 var_Create( p_libvlc_global, "mosaic-bs", VLC_VAR_INTEGER );
327 var_SetBool( p_libvlc_global, "mosaic-bs", p_sys->b_bs );
328 var_AddCallback( p_libvlc_global, "mosaic-bs", MosaicCallback, p_sys );
329 if( p_sys->b_bs && p_sys->b_keep )
331 msg_Warn( p_filter, "mosaic-keep-picture needs to be disabled for"
332 " bluescreen to work" );
335 vlc_mutex_unlock( &p_sys->lock );
340 /*****************************************************************************
341 * DestroyFilter: destroy mosaic video filter
342 *****************************************************************************/
343 static void DestroyFilter( vlc_object_t *p_this )
345 filter_t *p_filter = (filter_t*)p_this;
346 filter_sys_t *p_sys = p_filter->p_sys;
347 libvlc_global_data_t *p_libvlc_global = p_filter->p_libvlc_global;
350 vlc_mutex_lock( &p_sys->lock );
354 image_HandlerDelete( p_sys->p_image );
357 if( p_sys->i_order_length )
359 for( i_index = 0; i_index < p_sys->i_order_length; i_index++ )
361 free( p_sys->ppsz_order[i_index] );
363 free( p_sys->ppsz_order );
366 var_Destroy( p_libvlc_global, "mosaic-alpha" );
367 var_Destroy( p_libvlc_global, "mosaic-height" );
368 var_Destroy( p_libvlc_global, "mosaic-align" );
369 var_Destroy( p_libvlc_global, "mosaic-width" );
370 var_Destroy( p_libvlc_global, "mosaic-xoffset" );
371 var_Destroy( p_libvlc_global, "mosaic-yoffset" );
372 var_Destroy( p_libvlc_global, "mosaic-vborder" );
373 var_Destroy( p_libvlc_global, "mosaic-hborder" );
374 var_Destroy( p_libvlc_global, "mosaic-position" );
375 var_Destroy( p_libvlc_global, "mosaic-rows" );
376 var_Destroy( p_libvlc_global, "mosaic-cols" );
377 var_Destroy( p_libvlc_global, "mosaic-keep-aspect-ratio" );
379 var_Destroy( p_libvlc_global, "mosaic-bsu" );
380 var_Destroy( p_libvlc_global, "mosaic-bsv" );
381 var_Destroy( p_libvlc_global, "mosaic-bsut" );
382 var_Destroy( p_libvlc_global, "mosaic-bsvt" );
383 var_Destroy( p_libvlc_global, "mosaic-bs" );
385 if( p_sys->p_pic ) p_sys->p_pic->pf_release( p_sys->p_pic );
386 vlc_mutex_unlock( &p_sys->lock );
387 vlc_mutex_destroy( &p_sys->lock );
391 /*****************************************************************************
392 * MosaicReleasePicture : Hack to avoid picture duplication
393 *****************************************************************************/
394 static void MosaicReleasePicture( picture_t *p_picture )
396 picture_t *p_original_pic = (picture_t *)p_picture->p_sys;
398 p_original_pic->pf_release( p_original_pic );
401 /*****************************************************************************
403 *****************************************************************************/
404 static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
406 filter_sys_t *p_sys = p_filter->p_sys;
411 int i_index, i_real_index, i_row, i_col;
412 int i_greatest_real_index_used = p_sys->i_order_length - 1;
414 unsigned int col_inner_width, row_inner_height;
416 subpicture_region_t *p_region;
417 subpicture_region_t *p_region_prev = NULL;
419 /* Allocate the subpicture internal data. */
420 p_spu = p_filter->pf_sub_buffer_new( p_filter );
426 /* Initialize subpicture */
427 p_spu->i_channel = 0;
428 p_spu->i_start = date;
430 p_spu->b_ephemer = VLC_TRUE;
431 p_spu->i_alpha = p_sys->i_alpha;
432 p_spu->i_flags = p_sys->i_align;
433 p_spu->b_absolute = VLC_FALSE;
435 vlc_mutex_lock( &p_sys->lock );
436 vlc_mutex_lock( p_sys->p_lock );
438 p_bridge = GetBridge( p_filter );
439 if ( p_bridge == NULL )
441 vlc_mutex_unlock( p_sys->p_lock );
442 vlc_mutex_unlock( &p_sys->lock );
446 if ( p_sys->i_position == 0 ) /* use automatic positioning */
448 int i_numpics = p_sys->i_order_length; /* keep slots and all */
449 for ( i_index = 0; i_index < p_bridge->i_es_num; i_index++ )
451 bridged_es_t *p_es = p_bridge->pp_es[i_index];
452 if ( !p_es->b_empty )
455 if( p_sys->i_order_length && p_es->psz_id != 0 )
457 /* We also want to leave slots for images given in
458 * mosaic-order that are not available in p_vout_picture */
460 for( i = 0; i < p_sys->i_order_length ; i++ )
462 if( !strcmp( p_sys->ppsz_order[i], p_es->psz_id ) )
472 p_sys->i_rows = ((int)ceil(sqrt( (float)i_numpics )));
473 p_sys->i_cols = ( i_numpics % p_sys->i_rows == 0 ?
474 i_numpics / p_sys->i_rows :
475 i_numpics / p_sys->i_rows + 1 );
478 col_inner_width = ( ( p_sys->i_width - ( p_sys->i_cols - 1 )
479 * p_sys->i_vborder ) / p_sys->i_cols );
480 row_inner_height = ( ( p_sys->i_height - ( p_sys->i_rows - 1 )
481 * p_sys->i_hborder ) / p_sys->i_rows );
485 for ( i_index = 0; i_index < p_bridge->i_es_num; i_index++ )
487 bridged_es_t *p_es = p_bridge->pp_es[i_index];
488 video_format_t fmt_in = {0}, fmt_out = {0};
489 picture_t *p_converted;
494 while ( p_es->p_picture != NULL
495 && p_es->p_picture->date + p_sys->i_delay < date )
497 if ( p_es->p_picture->p_next != NULL )
499 picture_t *p_next = p_es->p_picture->p_next;
500 p_es->p_picture->pf_release( p_es->p_picture );
501 p_es->p_picture = p_next;
503 else if ( p_es->p_picture->date + p_sys->i_delay + BLANK_DELAY <
507 p_es->p_picture->pf_release( p_es->p_picture );
508 p_es->p_picture = NULL;
509 p_es->pp_last = &p_es->p_picture;
514 msg_Dbg( p_filter, "too late picture for %s (" I64Fd ")",
516 date - p_es->p_picture->date - p_sys->i_delay );
521 if ( p_es->p_picture == NULL )
524 if ( p_sys->i_order_length == 0 )
531 for ( i = 0; i <= p_sys->i_order_length; i++ )
533 if ( i == p_sys->i_order_length ) break;
534 if ( strcmp( p_es->psz_id, p_sys->ppsz_order[i] ) == 0 )
540 if ( i == p_sys->i_order_length )
541 i_real_index = ++i_greatest_real_index_used;
543 i_row = ( i_real_index / p_sys->i_cols ) % p_sys->i_rows;
544 i_col = i_real_index % p_sys->i_cols ;
546 if ( !p_sys->b_keep )
548 /* Convert the images */
549 fmt_in.i_chroma = p_es->p_picture->format.i_chroma;
550 fmt_in.i_height = p_es->p_picture->format.i_height;
551 fmt_in.i_width = p_es->p_picture->format.i_width;
553 fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
554 fmt_out.i_width = col_inner_width;
555 fmt_out.i_height = row_inner_height;
557 if( p_sys->b_ar ) /* keep aspect ratio */
559 if( (float)fmt_out.i_width / (float)fmt_out.i_height
560 > (float)fmt_in.i_width / (float)fmt_in.i_height )
562 fmt_out.i_width = ( fmt_out.i_height * fmt_in.i_width )
567 fmt_out.i_height = ( fmt_out.i_width * fmt_in.i_height )
572 fmt_out.i_visible_width = fmt_out.i_width;
573 fmt_out.i_visible_height = fmt_out.i_height;
575 p_converted = image_Convert( p_sys->p_image, p_es->p_picture,
580 "image resizing and chroma conversion failed" );
584 /* Bluescreen stuff */
588 int i_lines = p_converted->p[ A_PLANE ].i_lines;
589 int i_pitch = p_converted->p[ A_PLANE ].i_pitch;
590 uint8_t *p_a = p_converted->p[ A_PLANE ].p_pixels;
591 uint8_t *p_at = malloc( i_lines * i_pitch * sizeof( uint8_t ) );
592 uint8_t *p_u = p_converted->p[ U_PLANE ].p_pixels;
593 uint8_t *p_v = p_converted->p[ V_PLANE ].p_pixels;
594 uint8_t umin, umax, vmin, vmax;
595 umin = p_sys->i_bsu - p_sys->i_bsut >= 0x00 ?
596 p_sys->i_bsu - p_sys->i_bsut : 0x00;
597 umax = p_sys->i_bsu + p_sys->i_bsut <= 0xff ?
598 p_sys->i_bsu + p_sys->i_bsut : 0xff;
599 vmin = p_sys->i_bsv - p_sys->i_bsvt >= 0x00 ?
600 p_sys->i_bsv - p_sys->i_bsvt : 0x00;
601 vmax = p_sys->i_bsv + p_sys->i_bsvt <= 0xff ?
602 p_sys->i_bsv + p_sys->i_bsvt : 0xff;
604 for( i = 0; i < i_lines*i_pitch; i++ )
618 /* Gaussian convolution to make it look cleaner */
619 memset( p_a, 0, 2 * i_pitch );
620 for( i = 2; i < i_lines - 2; i++ )
622 p_a[i*i_pitch] = 0x00;
623 p_a[i*i_pitch+1] = 0x00;
624 for( j = 2; j < i_pitch - 2; j ++ )
626 p_a[i*i_pitch+j] = (uint8_t)((
628 ( p_at[(i-2)*i_pitch+j-2]<<1 )
629 + ( p_at[(i-2)*i_pitch+j-1]<<2 )
630 + ( p_at[(i-2)*i_pitch+j]<<2 )
631 + ( p_at[(i-2)*i_pitch+j+1]<<2 )
632 + ( p_at[(i-2)*i_pitch+j+2]<<1 )
634 + ( p_at[(i-1)*i_pitch+j-1]<<3 )
635 + ( p_at[(i-1)*i_pitch+j-2]<<2 )
636 + ( p_at[(i-1)*i_pitch+j]*12 )
637 + ( p_at[(i-1)*i_pitch+j+1]<<3 )
638 + ( p_at[(i-1)*i_pitch+j+2]<<2 )
640 + ( p_at[i*i_pitch+j-2]<<2 )
641 + ( p_at[i*i_pitch+j-1]*12 )
642 + ( p_at[i*i_pitch+j]<<4 )
643 + ( p_at[i*i_pitch+j+1]*12 )
644 + ( p_at[i*i_pitch+j+2]<<2 )
646 + ( p_at[(i+1)*i_pitch+j-2]<<2 )
647 + ( p_at[(i+1)*i_pitch+j-1]<<3 )
648 + ( p_at[(i+1)*i_pitch+j]*12 )
649 + ( p_at[(i+1)*i_pitch+j+1]<<3 )
650 + ( p_at[(i+1)*i_pitch+j+2]<<2 )
652 + ( p_at[(i+2)*i_pitch+j-2]<<1 )
653 + ( p_at[(i+2)*i_pitch+j-1]<<2 )
654 + ( p_at[(i+2)*i_pitch+j]<<2 )
655 + ( p_at[(i+2)*i_pitch+j+1]<<2 )
656 + ( p_at[(i+2)*i_pitch+j+2]<<1 )
658 if( p_a[i*i_pitch+j] < 0xbf ) p_a[i*i_pitch+j] = 0x00;
666 p_converted = p_es->p_picture;
667 p_converted->i_refcount++;
668 fmt_in.i_width = fmt_out.i_width = p_converted->format.i_width;
669 fmt_in.i_height = fmt_out.i_height = p_converted->format.i_height;
670 fmt_in.i_chroma = fmt_out.i_chroma = p_converted->format.i_chroma;
671 fmt_out.i_visible_width = fmt_out.i_width;
672 fmt_out.i_visible_height = fmt_out.i_height;
675 p_region = p_spu->pf_make_region( VLC_OBJECT(p_filter), &fmt_out,
679 msg_Err( p_filter, "cannot allocate SPU region" );
680 p_filter->pf_sub_buffer_del( p_filter, p_spu );
681 vlc_mutex_unlock( &p_sys->lock );
682 vlc_mutex_unlock( p_sys->p_lock );
686 /* HACK ALERT : let's fix the pointers to avoid picture duplication.
687 * This is necessary because p_region->picture is not a pointer
688 * as it ought to be. */
695 /* Keep a pointer to the original picture (and its refcount...). */
696 p_region->picture.p_sys = (picture_sys_t *)p_converted;
697 p_region->picture.pf_release = MosaicReleasePicture;
700 if( fmt_out.i_width > col_inner_width ||
701 p_sys->b_ar || p_sys->b_keep )
703 /* we don't have to center the video since it takes the
704 whole rectangle area or it's larger than the rectangle */
705 p_region->i_x = p_sys->i_xoffset
706 + i_col * ( p_sys->i_width / p_sys->i_cols )
707 + ( i_col * p_sys->i_vborder ) / p_sys->i_cols;
711 /* center the video in the dedicated rectangle */
712 p_region->i_x = p_sys->i_xoffset
713 + i_col * ( p_sys->i_width / p_sys->i_cols )
714 + ( i_col * p_sys->i_vborder ) / p_sys->i_cols
715 + ( col_inner_width - fmt_out.i_width ) / 2;
718 if( fmt_out.i_height < row_inner_height
719 || p_sys->b_ar || p_sys->b_keep )
721 /* we don't have to center the video since it takes the
722 whole rectangle area or it's taller than the rectangle */
723 p_region->i_y = p_sys->i_yoffset
724 + i_row * ( p_sys->i_height / p_sys->i_rows )
725 + ( i_row * p_sys->i_hborder ) / p_sys->i_rows;
729 /* center the video in the dedicated rectangle */
730 p_region->i_y = p_sys->i_yoffset
731 + i_row * ( p_sys->i_height / p_sys->i_rows )
732 + ( i_row * p_sys->i_hborder ) / p_sys->i_rows
733 + ( row_inner_height - fmt_out.i_height ) / 2;
736 if( p_region_prev == NULL )
738 p_spu->p_region = p_region;
742 p_region_prev->p_next = p_region;
745 p_region_prev = p_region;
748 vlc_mutex_unlock( p_sys->p_lock );
749 vlc_mutex_unlock( &p_sys->lock );
754 /*****************************************************************************
755 * Callback to update params on the fly
756 *****************************************************************************/
757 static int MosaicCallback( vlc_object_t *p_this, char const *psz_var,
758 vlc_value_t oldval, vlc_value_t newval,
761 filter_sys_t *p_sys = (filter_sys_t *) p_data;
762 if( !strcmp( psz_var, "mosaic-alpha" ) )
764 vlc_mutex_lock( &p_sys->lock );
765 msg_Dbg( p_this, "changing alpha from %d/255 to %d/255",
766 p_sys->i_alpha, newval.i_int);
767 p_sys->i_alpha = __MIN( __MAX( newval.i_int, 0 ), 255 );
768 vlc_mutex_unlock( &p_sys->lock );
770 else if( !strcmp( psz_var, "mosaic-height" ) )
772 vlc_mutex_lock( &p_sys->lock );
773 msg_Dbg( p_this, "changing height from %dpx to %dpx",
774 p_sys->i_height, newval.i_int );
775 p_sys->i_height = __MAX( newval.i_int, 0 );
776 vlc_mutex_unlock( &p_sys->lock );
778 else if( !strcmp( psz_var, "mosaic-width" ) )
780 vlc_mutex_lock( &p_sys->lock );
781 msg_Dbg( p_this, "changing width from %dpx to %dpx",
782 p_sys->i_width, newval.i_int );
783 p_sys->i_width = __MAX( newval.i_int, 0 );
784 vlc_mutex_unlock( &p_sys->lock );
786 else if( !strcmp( psz_var, "mosaic-xoffset" ) )
788 vlc_mutex_lock( &p_sys->lock );
789 msg_Dbg( p_this, "changing x offset from %dpx to %dpx",
790 p_sys->i_xoffset, newval.i_int );
791 p_sys->i_xoffset = __MAX( newval.i_int, 0 );
792 vlc_mutex_unlock( &p_sys->lock );
794 else if( !strcmp( psz_var, "mosaic-yoffset" ) )
796 vlc_mutex_lock( &p_sys->lock );
797 msg_Dbg( p_this, "changing y offset from %dpx to %dpx",
798 p_sys->i_yoffset, newval.i_int );
799 p_sys->i_yoffset = __MAX( newval.i_int, 0 );
800 vlc_mutex_unlock( &p_sys->lock );
802 else if( !strcmp( psz_var, "mosaic-align" ) )
804 int i_old = 0, i_new = 0;
805 vlc_mutex_lock( &p_sys->lock );
806 newval.i_int = __MIN( __MAX( newval.i_int, 0 ), 10 );
807 if( newval.i_int == 3 || newval.i_int == 7 )
809 while( pi_align_values[i_old] != p_sys->i_align ) i_old++;
810 while( pi_align_values[i_new] != newval.i_int ) i_new++;
811 msg_Dbg( p_this, "changing alignment from %d (%s) to %d (%s)",
812 p_sys->i_align, ppsz_align_descriptions[i_old],
813 newval.i_int, ppsz_align_descriptions[i_new] );
814 p_sys->i_align = newval.i_int;
815 vlc_mutex_unlock( &p_sys->lock );
817 else if( !strcmp( psz_var, "mosaic-vborder" ) )
819 vlc_mutex_lock( &p_sys->lock );
820 msg_Dbg( p_this, "changing vertical border from %dpx to %dpx",
821 p_sys->i_vborder, newval.i_int );
822 p_sys->i_vborder = __MAX( newval.i_int, 0 );
823 vlc_mutex_unlock( &p_sys->lock );
825 else if( !strcmp( psz_var, "mosaic-hborder" ) )
827 vlc_mutex_lock( &p_sys->lock );
828 msg_Dbg( p_this, "changing horizontal border from %dpx to %dpx",
829 p_sys->i_vborder, newval.i_int );
830 p_sys->i_hborder = __MAX( newval.i_int, 0 );
831 vlc_mutex_unlock( &p_sys->lock );
833 else if( !strcmp( psz_var, "mosaic-position" ) )
835 if( newval.i_int > 1 || newval.i_int < 0 )
837 msg_Err( p_this, "Position is either 0 (auto) or 1 (fixed)" );
841 vlc_mutex_lock( &p_sys->lock );
842 msg_Dbg( p_this, "changing position method from %d (%s) to %d (%s)",
843 p_sys->i_position, ppsz_pos_descriptions[p_sys->i_position],
844 newval.i_int, ppsz_pos_descriptions[newval.i_int]);
845 p_sys->i_position = newval.i_int;
846 vlc_mutex_unlock( &p_sys->lock );
849 else if( !strcmp( psz_var, "mosaic-rows" ) )
851 vlc_mutex_lock( &p_sys->lock );
852 msg_Dbg( p_this, "changing number of rows from %d to %d",
853 p_sys->i_rows, newval.i_int );
854 p_sys->i_rows = __MAX( newval.i_int, 1 );
855 vlc_mutex_unlock( &p_sys->lock );
857 else if( !strcmp( psz_var, "mosaic-cols" ) )
859 vlc_mutex_lock( &p_sys->lock );
860 msg_Dbg( p_this, "changing number of columns from %d to %d",
861 p_sys->i_cols, newval.i_int );
862 p_sys->i_cols = __MAX( newval.i_int, 1 );
863 vlc_mutex_unlock( &p_sys->lock );
865 else if( !strcmp( psz_var, "mosaic-order" ) )
869 vlc_mutex_lock( &p_sys->lock );
870 msg_Dbg( p_this, "Changing mosaic order to %s", newval.psz_string );
872 p_sys->i_order_length = 0;
873 p_sys->ppsz_order = NULL;
874 psz_order = newval.psz_string;
876 while( p_sys->i_order_length-- )
879 printf("%d\n", p_sys->ppsz_order);
881 free( p_sys->ppsz_order );
883 if( psz_order[0] != 0 )
885 char *psz_end = NULL;
889 psz_end = strchr( psz_order, ',' );
891 p_sys->ppsz_order = realloc( p_sys->ppsz_order,
892 i_index * sizeof(char *) );
893 p_sys->ppsz_order[i_index - 1] = strndup( psz_order,
894 psz_end - psz_order );
895 psz_order = psz_end+1;
896 } while( NULL != psz_end );
897 p_sys->i_order_length = i_index;
900 vlc_mutex_unlock( &p_sys->lock );
902 else if( !strcmp( psz_var, "mosaic-keep-aspect-ratio" ) )
904 vlc_mutex_lock( &p_sys->lock );
907 msg_Dbg( p_this, "keeping aspect ratio" );
912 msg_Dbg( p_this, "won't keep aspect ratio" );
915 vlc_mutex_unlock( &p_sys->lock );