/***************************************************************************** * mosaic.c : Mosaic video plugin for vlc ***************************************************************************** * Copyright (C) 2004-2008 VLC authors and VideoLAN * $Id$ * * Authors: Antoine Cellerier * Christophe Massiot * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ /***************************************************************************** * Preamble *****************************************************************************/ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include /* INT_MAX */ #include #include #include #include #include #include "mosaic.h" #define BLANK_DELAY INT64_C(1000000) /***************************************************************************** * Local prototypes *****************************************************************************/ static int CreateFilter ( vlc_object_t * ); static void DestroyFilter ( vlc_object_t * ); static subpicture_t *Filter ( filter_t *, vlc_tick_t ); static int MosaicCallback ( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); /***************************************************************************** * filter_sys_t : filter descriptor *****************************************************************************/ struct filter_sys_t { vlc_mutex_t lock; /* Internal filter lock */ image_handler_t *p_image; int i_position; /* Mosaic positioning method */ bool b_ar; /* Do we keep the aspect ratio ? */ bool b_keep; /* Do we keep the original picture format ? */ int i_width, i_height; /* Mosaic height and width */ int i_cols, i_rows; /* Mosaic rows and cols */ int i_align; /* Mosaic alignment in background video */ int i_xoffset, i_yoffset; /* Top left corner offset */ int i_borderw, i_borderh; /* Border width/height between miniatures */ int i_alpha; /* Subfilter alpha blending */ char **ppsz_order; /* List of picture-ids */ int i_order_length; int *pi_x_offsets; /* List of substreams x offsets */ int *pi_y_offsets; /* List of substreams y offsets */ int i_offsets_length; vlc_tick_t i_delay; }; /***************************************************************************** * Module descriptor *****************************************************************************/ #define ALPHA_TEXT N_("Transparency") #define ALPHA_LONGTEXT N_( \ "Transparency of the mosaic foreground pictures. " \ "0 means transparent, 255 opaque (default)." ) #define HEIGHT_TEXT N_("Height") #define HEIGHT_LONGTEXT N_( "Total height of the mosaic, in pixels." ) #define WIDTH_TEXT N_("Width") #define WIDTH_LONGTEXT N_( "Total width of the mosaic, in pixels." ) #define XOFFSET_TEXT N_("Top left corner X coordinate") #define XOFFSET_LONGTEXT N_( \ "X Coordinate of the top-left corner of the mosaic.") #define YOFFSET_TEXT N_("Top left corner Y coordinate") #define YOFFSET_LONGTEXT N_( \ "Y Coordinate of the top-left corner of the mosaic.") #define BORDERW_TEXT N_("Border width") #define BORDERW_LONGTEXT N_( \ "Width in pixels of the border between miniatures." ) #define BORDERH_TEXT N_("Border height") #define BORDERH_LONGTEXT N_( \ "Height in pixels of the border between miniatures." ) #define ALIGN_TEXT N_("Mosaic alignment" ) #define ALIGN_LONGTEXT N_( \ "You can enforce the mosaic alignment on the video " \ "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \ "also use combinations of these values, eg 6 = top-right).") #define POS_TEXT N_("Positioning method") #define POS_LONGTEXT N_( \ "Positioning method for the mosaic. auto: " \ "automatically choose the best number of rows and columns. " \ "fixed: use the user-defined number of rows and columns. " \ "offsets: use the user-defined offsets for each image." ) #define ROWS_TEXT N_("Number of rows") #define ROWS_LONGTEXT N_( \ "Number of image rows in the mosaic (only used if " \ "positioning method is set to \"fixed\")." ) #define COLS_TEXT N_("Number of columns") #define COLS_LONGTEXT N_( \ "Number of image columns in the mosaic (only used if " \ "positioning method is set to \"fixed\")." ) #define AR_TEXT N_("Keep aspect ratio") #define AR_LONGTEXT N_( \ "Keep the original aspect ratio when resizing " \ "mosaic elements." ) #define KEEP_TEXT N_("Keep original size") #define KEEP_LONGTEXT N_( \ "Keep the original size of mosaic elements." ) #define ORDER_TEXT N_("Elements order" ) #define ORDER_LONGTEXT N_( \ "You can enforce the order of the elements on " \ "the mosaic. You must give a comma-separated list of picture ID(s). " \ "These IDs are assigned in the \"mosaic-bridge\" module." ) #define OFFSETS_TEXT N_("Offsets in order" ) #define OFFSETS_LONGTEXT N_( \ "You can enforce the (x,y) offsets of the elements on the mosaic " \ "(only used if positioning method is set to \"offsets\"). You " \ "must give a comma-separated list of coordinates (eg: 10,10,150,10)." ) #define DELAY_TEXT N_("Delay") #define DELAY_LONGTEXT N_( \ "Pictures coming from the mosaic elements will be delayed " \ "according to this value (in milliseconds). For high " \ "values you will need to raise caching at input.") enum { position_auto = 0, position_fixed = 1, position_offsets = 2 }; static const int pi_pos_values[] = { 0, 1, 2 }; static const char *const ppsz_pos_descriptions[] = { N_("auto"), N_("fixed"), N_("offsets") }; static const int pi_align_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 }; static const char *const ppsz_align_descriptions[] = { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"), N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") }; #define CFG_PREFIX "mosaic-" vlc_module_begin () set_description( N_("Mosaic video sub source") ) set_shortname( N_("Mosaic") ) set_category( CAT_VIDEO ) set_subcategory( SUBCAT_VIDEO_SUBPIC) set_capability( "sub source", 0 ) set_callbacks( CreateFilter, DestroyFilter ) add_integer_with_range( CFG_PREFIX "alpha", 255, 0, 255, ALPHA_TEXT, ALPHA_LONGTEXT, false ) add_integer( CFG_PREFIX "height", 100, HEIGHT_TEXT, HEIGHT_LONGTEXT, false ) add_integer( CFG_PREFIX "width", 100, WIDTH_TEXT, WIDTH_LONGTEXT, false ) add_integer( CFG_PREFIX "align", 5, ALIGN_TEXT, ALIGN_LONGTEXT, true) change_integer_list( pi_align_values, ppsz_align_descriptions ) add_integer( CFG_PREFIX "xoffset", 0, XOFFSET_TEXT, XOFFSET_LONGTEXT, true ) add_integer( CFG_PREFIX "yoffset", 0, YOFFSET_TEXT, YOFFSET_LONGTEXT, true ) add_integer( CFG_PREFIX "borderw", 0, BORDERW_TEXT, BORDERW_LONGTEXT, true ) add_integer( CFG_PREFIX "borderh", 0, BORDERH_TEXT, BORDERH_LONGTEXT, true ) add_integer( CFG_PREFIX "position", 0, POS_TEXT, POS_LONGTEXT, false ) change_integer_list( pi_pos_values, ppsz_pos_descriptions ) add_integer( CFG_PREFIX "rows", 2, ROWS_TEXT, ROWS_LONGTEXT, false ) add_integer( CFG_PREFIX "cols", 2, COLS_TEXT, COLS_LONGTEXT, false ) add_bool( CFG_PREFIX "keep-aspect-ratio", false, AR_TEXT, AR_LONGTEXT, false ) add_bool( CFG_PREFIX "keep-picture", false, KEEP_TEXT, KEEP_LONGTEXT, false ) add_string( CFG_PREFIX "order", "", ORDER_TEXT, ORDER_LONGTEXT, false ) add_string( CFG_PREFIX "offsets", "", OFFSETS_TEXT, OFFSETS_LONGTEXT, false ) add_integer( CFG_PREFIX "delay", 0, DELAY_TEXT, DELAY_LONGTEXT, false ) vlc_module_end () static const char *const ppsz_filter_options[] = { "alpha", "height", "width", "align", "xoffset", "yoffset", "borderw", "borderh", "position", "rows", "cols", "keep-aspect-ratio", "keep-picture", "order", "offsets", "delay", NULL }; /***************************************************************************** * mosaic_ParseSetOffsets: * parse the "--mosaic-offsets x1,y1,x2,y2,x3,y3" parameter * and set the corresponding struct filter_sys_t entries. *****************************************************************************/ static void mosaic_ParseSetOffsets( vlc_object_t *p_this, filter_sys_t *p_sys, char *psz_offsets ) { if( *psz_offsets ) { char *psz_end = NULL; int i_index = 0; do { i_index++; p_sys->pi_x_offsets = xrealloc( p_sys->pi_x_offsets, i_index * sizeof(int) ); p_sys->pi_x_offsets[i_index - 1] = atoi( psz_offsets ); psz_end = strchr( psz_offsets, ',' ); psz_offsets = psz_end + 1; p_sys->pi_y_offsets = xrealloc( p_sys->pi_y_offsets, i_index * sizeof(int) ); p_sys->pi_y_offsets[i_index - 1] = atoi( psz_offsets ); psz_end = strchr( psz_offsets, ',' ); psz_offsets = psz_end + 1; msg_Dbg( p_this, CFG_PREFIX "offset: id %d, x=%d, y=%d", i_index, p_sys->pi_x_offsets[i_index - 1], p_sys->pi_y_offsets[i_index - 1] ); } while( psz_end ); p_sys->i_offsets_length = i_index; } } #define mosaic_ParseSetOffsets( a, b, c ) \ mosaic_ParseSetOffsets( VLC_OBJECT( a ), b, c ) /***************************************************************************** * CreateFiler: allocate mosaic video filter *****************************************************************************/ static int CreateFilter( vlc_object_t *p_this ) { filter_t *p_filter = (filter_t *)p_this; filter_sys_t *p_sys; char *psz_order, *_psz_order; char *psz_offsets; int i_index; int i_command; /* Allocate structure */ p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) ); if( p_sys == NULL ) return VLC_ENOMEM; p_filter->pf_sub_source = Filter; vlc_mutex_init( &p_sys->lock ); vlc_mutex_lock( &p_sys->lock ); config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options, p_filter->p_cfg ); #define GET_VAR( name, min, max ) \ i_command = var_CreateGetIntegerCommand( p_filter, CFG_PREFIX #name ); \ p_sys->i_##name = VLC_CLIP( i_command, min, max ); \ var_AddCallback( p_filter, CFG_PREFIX #name, MosaicCallback, p_sys ); GET_VAR( width, 0, INT_MAX ); GET_VAR( height, 0, INT_MAX ); GET_VAR( xoffset, 0, INT_MAX ); GET_VAR( yoffset, 0, INT_MAX ); GET_VAR( align, 0, 10 ); if( p_sys->i_align == 3 || p_sys->i_align == 7 ) p_sys->i_align = 5; GET_VAR( borderw, 0, INT_MAX ); GET_VAR( borderh, 0, INT_MAX ); GET_VAR( rows, 1, INT_MAX ); GET_VAR( cols, 1, INT_MAX ); GET_VAR( alpha, 0, 255 ); GET_VAR( position, 0, 2 ); GET_VAR( delay, 100, INT_MAX ); #undef GET_VAR p_sys->i_delay *= 1000; p_sys->b_ar = var_CreateGetBoolCommand( p_filter, CFG_PREFIX "keep-aspect-ratio" ); var_AddCallback( p_filter, CFG_PREFIX "keep-aspect-ratio", MosaicCallback, p_sys ); p_sys->b_keep = var_CreateGetBoolCommand( p_filter, CFG_PREFIX "keep-picture" ); if ( !p_sys->b_keep ) { p_sys->p_image = image_HandlerCreate( p_filter ); } p_sys->i_order_length = 0; p_sys->ppsz_order = NULL; psz_order = var_CreateGetStringCommand( p_filter, CFG_PREFIX "order" ); _psz_order = psz_order; var_AddCallback( p_filter, CFG_PREFIX "order", MosaicCallback, p_sys ); if( *psz_order ) { char *psz_end = NULL; i_index = 0; do { psz_end = strchr( psz_order, ',' ); i_index++; p_sys->ppsz_order = xrealloc( p_sys->ppsz_order, i_index * sizeof(char *) ); p_sys->ppsz_order[i_index - 1] = strndup( psz_order, psz_end - psz_order ); psz_order = psz_end+1; } while( psz_end ); p_sys->i_order_length = i_index; } free( _psz_order ); /* Manage specific offsets for substreams */ psz_offsets = var_CreateGetStringCommand( p_filter, CFG_PREFIX "offsets" ); p_sys->i_offsets_length = 0; p_sys->pi_x_offsets = NULL; p_sys->pi_y_offsets = NULL; mosaic_ParseSetOffsets( p_filter, p_sys, psz_offsets ); free( psz_offsets ); var_AddCallback( p_filter, CFG_PREFIX "offsets", MosaicCallback, p_sys ); vlc_mutex_unlock( &p_sys->lock ); return VLC_SUCCESS; } /***************************************************************************** * DestroyFilter: destroy mosaic video filter *****************************************************************************/ static void DestroyFilter( vlc_object_t *p_this ) { filter_t *p_filter = (filter_t*)p_this; filter_sys_t *p_sys = p_filter->p_sys; #define DEL_CB( name ) \ var_DelCallback( p_filter, CFG_PREFIX #name, MosaicCallback, p_sys ) DEL_CB( width ); DEL_CB( height ); DEL_CB( xoffset ); DEL_CB( yoffset ); DEL_CB( align ); DEL_CB( borderw ); DEL_CB( borderh ); DEL_CB( rows ); DEL_CB( cols ); DEL_CB( alpha ); DEL_CB( position ); DEL_CB( delay ); DEL_CB( keep-aspect-ratio ); DEL_CB( order ); #undef DEL_CB if( !p_sys->b_keep ) { image_HandlerDelete( p_sys->p_image ); } if( p_sys->i_order_length ) { for( int i_index = 0; i_index < p_sys->i_order_length; i_index++ ) { free( p_sys->ppsz_order[i_index] ); } free( p_sys->ppsz_order ); } if( p_sys->i_offsets_length ) { free( p_sys->pi_x_offsets ); free( p_sys->pi_y_offsets ); p_sys->i_offsets_length = 0; } vlc_mutex_destroy( &p_sys->lock ); free( p_sys ); } /***************************************************************************** * Filter *****************************************************************************/ static subpicture_t *Filter( filter_t *p_filter, vlc_tick_t date ) { filter_sys_t *p_sys = p_filter->p_sys; bridge_t *p_bridge; int i_real_index, i_row, i_col; int i_greatest_real_index_used = p_sys->i_order_length - 1; unsigned int col_inner_width, row_inner_height; subpicture_region_t *p_region; subpicture_region_t *p_region_prev = NULL; /* Allocate the subpicture internal data. */ subpicture_t *p_spu = filter_NewSubpicture( p_filter ); if( !p_spu ) return NULL; /* Initialize subpicture */ p_spu->i_channel = 0; p_spu->i_start = date; p_spu->i_stop = 0; p_spu->b_ephemer = true; p_spu->i_alpha = p_sys->i_alpha; p_spu->b_absolute = false; p_spu->i_original_picture_width = p_sys->i_width; p_spu->i_original_picture_height = p_sys->i_height; vlc_mutex_lock( &p_sys->lock ); vlc_global_lock( VLC_MOSAIC_MUTEX ); p_bridge = GetBridge( p_filter ); if ( p_bridge == NULL ) { vlc_global_unlock( VLC_MOSAIC_MUTEX ); vlc_mutex_unlock( &p_sys->lock ); return p_spu; } if ( p_sys->i_position == position_offsets ) { /* If we have either too much or not enough offsets, fall-back * to automatic positioning. */ if ( p_sys->i_offsets_length != p_sys->i_order_length ) { msg_Err( p_filter, "Number of specified offsets (%d) does not match number " "of input substreams in mosaic-order (%d), falling back " "to mosaic-position=0", p_sys->i_offsets_length, p_sys->i_order_length ); p_sys->i_position = position_auto; } } if ( p_sys->i_position == position_auto ) { int i_numpics = p_sys->i_order_length; /* keep slots and all */ for( int i_index = 0; i_index < p_bridge->i_es_num; i_index++ ) { bridged_es_t *p_es = p_bridge->pp_es[i_index]; if ( !p_es->b_empty ) { i_numpics ++; if( p_sys->i_order_length && p_es->psz_id != NULL ) { /* We also want to leave slots for images given in * mosaic-order that are not available in p_vout_picture */ for( int i = 0; i < p_sys->i_order_length ; i++ ) { if( !strcmp( p_sys->ppsz_order[i], p_es->psz_id ) ) { i_numpics--; break; } } } } } p_sys->i_rows = ceil(sqrt( (double)i_numpics )); p_sys->i_cols = ( i_numpics % p_sys->i_rows == 0 ? i_numpics / p_sys->i_rows : i_numpics / p_sys->i_rows + 1 ); } col_inner_width = ( ( p_sys->i_width - ( p_sys->i_cols - 1 ) * p_sys->i_borderw ) / p_sys->i_cols ); row_inner_height = ( ( p_sys->i_height - ( p_sys->i_rows - 1 ) * p_sys->i_borderh ) / p_sys->i_rows ); i_real_index = 0; for( int i_index = 0; i_index < p_bridge->i_es_num; i_index++ ) { bridged_es_t *p_es = p_bridge->pp_es[i_index]; video_format_t fmt_in, fmt_out; picture_t *p_converted; if ( p_es->b_empty ) continue; while ( p_es->p_picture != NULL && p_es->p_picture->date + p_sys->i_delay < date ) { if ( p_es->p_picture->p_next != NULL ) { picture_t *p_next = p_es->p_picture->p_next; picture_Release( p_es->p_picture ); p_es->p_picture = p_next; } else if ( p_es->p_picture->date + p_sys->i_delay + BLANK_DELAY < date ) { /* Display blank */ picture_Release( p_es->p_picture ); p_es->p_picture = NULL; p_es->pp_last = &p_es->p_picture; break; } else { msg_Dbg( p_filter, "too late picture for %s (%"PRId64 ")", p_es->psz_id, date - p_es->p_picture->date - p_sys->i_delay ); break; } } if ( p_es->p_picture == NULL ) continue; if ( p_sys->i_order_length == 0 ) { i_real_index++; } else { int i; for ( i = 0; i <= p_sys->i_order_length; i++ ) { if ( i == p_sys->i_order_length ) break; if ( strcmp( p_es->psz_id, p_sys->ppsz_order[i] ) == 0 ) { i_real_index = i; break; } } if ( i == p_sys->i_order_length ) i_real_index = ++i_greatest_real_index_used; } i_row = ( i_real_index / p_sys->i_cols ) % p_sys->i_rows; i_col = i_real_index % p_sys->i_cols ; video_format_Init( &fmt_in, 0 ); video_format_Init( &fmt_out, 0 ); if ( !p_sys->b_keep ) { /* Convert the images */ fmt_in.i_chroma = p_es->p_picture->format.i_chroma; fmt_in.i_height = p_es->p_picture->format.i_height; fmt_in.i_width = p_es->p_picture->format.i_width; if( fmt_in.i_chroma == VLC_CODEC_YUVA || fmt_in.i_chroma == VLC_CODEC_RGBA ) fmt_out.i_chroma = VLC_CODEC_YUVA; else fmt_out.i_chroma = VLC_CODEC_I420; fmt_out.i_width = col_inner_width; fmt_out.i_height = row_inner_height; if( p_sys->b_ar ) /* keep aspect ratio */ { if( (float)fmt_out.i_width / (float)fmt_out.i_height > (float)fmt_in.i_width / (float)fmt_in.i_height ) { fmt_out.i_width = ( fmt_out.i_height * fmt_in.i_width ) / fmt_in.i_height; } else { fmt_out.i_height = ( fmt_out.i_width * fmt_in.i_height ) / fmt_in.i_width; } } fmt_out.i_visible_width = fmt_out.i_width; fmt_out.i_visible_height = fmt_out.i_height; p_converted = image_Convert( p_sys->p_image, p_es->p_picture, &fmt_in, &fmt_out ); if( !p_converted ) { msg_Warn( p_filter, "image resizing and chroma conversion failed" ); video_format_Clean( &fmt_in ); video_format_Clean( &fmt_out ); continue; } } else { p_converted = p_es->p_picture; fmt_in.i_width = fmt_out.i_width = p_converted->format.i_width; fmt_in.i_height = fmt_out.i_height = p_converted->format.i_height; fmt_in.i_chroma = fmt_out.i_chroma = p_converted->format.i_chroma; fmt_out.i_visible_width = fmt_out.i_width; fmt_out.i_visible_height = fmt_out.i_height; } p_region = subpicture_region_New( &fmt_out ); /* FIXME the copy is probably not needed anymore */ if( p_region ) picture_Copy( p_region->p_picture, p_converted ); if( !p_sys->b_keep ) picture_Release( p_converted ); if( !p_region ) { video_format_Clean( &fmt_in ); video_format_Clean( &fmt_out ); msg_Err( p_filter, "cannot allocate SPU region" ); subpicture_Delete( p_spu ); vlc_global_unlock( VLC_MOSAIC_MUTEX ); vlc_mutex_unlock( &p_sys->lock ); return NULL; } if( p_es->i_x >= 0 && p_es->i_y >= 0 ) { p_region->i_x = p_es->i_x; p_region->i_y = p_es->i_y; } else if( p_sys->i_position == position_offsets ) { p_region->i_x = p_sys->pi_x_offsets[i_real_index]; p_region->i_y = p_sys->pi_y_offsets[i_real_index]; } else { if( fmt_out.i_width > col_inner_width || p_sys->b_ar || p_sys->b_keep ) { /* we don't have to center the video since it takes the whole rectangle area or it's larger than the rectangle */ p_region->i_x = p_sys->i_xoffset + i_col * ( p_sys->i_width / p_sys->i_cols ) + ( i_col * p_sys->i_borderw ) / p_sys->i_cols; } else { /* center the video in the dedicated rectangle */ p_region->i_x = p_sys->i_xoffset + i_col * ( p_sys->i_width / p_sys->i_cols ) + ( i_col * p_sys->i_borderw ) / p_sys->i_cols + ( col_inner_width - fmt_out.i_width ) / 2; } if( fmt_out.i_height > row_inner_height || p_sys->b_ar || p_sys->b_keep ) { /* we don't have to center the video since it takes the whole rectangle area or it's taller than the rectangle */ p_region->i_y = p_sys->i_yoffset + i_row * ( p_sys->i_height / p_sys->i_rows ) + ( i_row * p_sys->i_borderh ) / p_sys->i_rows; } else { /* center the video in the dedicated rectangle */ p_region->i_y = p_sys->i_yoffset + i_row * ( p_sys->i_height / p_sys->i_rows ) + ( i_row * p_sys->i_borderh ) / p_sys->i_rows + ( row_inner_height - fmt_out.i_height ) / 2; } } p_region->i_align = p_sys->i_align; p_region->i_alpha = p_es->i_alpha; if( p_region_prev == NULL ) { p_spu->p_region = p_region; } else { p_region_prev->p_next = p_region; } video_format_Clean( &fmt_in ); video_format_Clean( &fmt_out ); p_region_prev = p_region; } vlc_global_unlock( VLC_MOSAIC_MUTEX ); vlc_mutex_unlock( &p_sys->lock ); return p_spu; } /***************************************************************************** * Callback to update params on the fly *****************************************************************************/ static int MosaicCallback( vlc_object_t *p_this, char const *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { VLC_UNUSED(oldval); filter_sys_t *p_sys = (filter_sys_t *) p_data; #define VAR_IS( a ) !strcmp( psz_var, CFG_PREFIX a ) if( VAR_IS( "alpha" ) ) { vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "changing alpha from %d/255 to %d/255", p_sys->i_alpha, (int)newval.i_int); p_sys->i_alpha = VLC_CLIP( newval.i_int, 0, 255 ); vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "height" ) ) { vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "changing height from %dpx to %dpx", p_sys->i_height, (int)newval.i_int ); p_sys->i_height = __MAX( newval.i_int, 0 ); vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "width" ) ) { vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "changing width from %dpx to %dpx", p_sys->i_width, (int)newval.i_int ); p_sys->i_width = __MAX( newval.i_int, 0 ); vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "xoffset" ) ) { vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "changing x offset from %dpx to %dpx", p_sys->i_xoffset, (int)newval.i_int ); p_sys->i_xoffset = __MAX( newval.i_int, 0 ); vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "yoffset" ) ) { vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "changing y offset from %dpx to %dpx", p_sys->i_yoffset, (int)newval.i_int ); p_sys->i_yoffset = __MAX( newval.i_int, 0 ); vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "align" ) ) { int i_old = 0, i_new = 0; vlc_mutex_lock( &p_sys->lock ); newval.i_int = VLC_CLIP( newval.i_int, 0, 10 ); if( newval.i_int == 3 || newval.i_int == 7 ) newval.i_int = 5; while( pi_align_values[i_old] != p_sys->i_align ) i_old++; while( pi_align_values[i_new] != newval.i_int ) i_new++; msg_Dbg( p_this, "changing alignment from %d (%s) to %d (%s)", p_sys->i_align, ppsz_align_descriptions[i_old], (int)newval.i_int, ppsz_align_descriptions[i_new] ); p_sys->i_align = newval.i_int; vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "borderw" ) ) { vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "changing border width from %dpx to %dpx", p_sys->i_borderw, (int)newval.i_int ); p_sys->i_borderw = __MAX( newval.i_int, 0 ); vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "borderh" ) ) { vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "changing border height from %dpx to %dpx", p_sys->i_borderh, (int)newval.i_int ); p_sys->i_borderh = __MAX( newval.i_int, 0 ); vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "position" ) ) { if( newval.i_int > 2 || newval.i_int < 0 ) { msg_Err( p_this, "Position is either 0 (%s), 1 (%s) or 2 (%s)", ppsz_pos_descriptions[0], ppsz_pos_descriptions[1], ppsz_pos_descriptions[2] ); } else { vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "changing position method from %d (%s) to %d (%s)", p_sys->i_position, ppsz_pos_descriptions[p_sys->i_position], (int)newval.i_int, ppsz_pos_descriptions[newval.i_int]); p_sys->i_position = newval.i_int; vlc_mutex_unlock( &p_sys->lock ); } } else if( VAR_IS( "rows" ) ) { vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "changing number of rows from %d to %d", p_sys->i_rows, (int)newval.i_int ); p_sys->i_rows = __MAX( newval.i_int, 1 ); vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "cols" ) ) { vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "changing number of columns from %d to %d", p_sys->i_cols, (int)newval.i_int ); p_sys->i_cols = __MAX( newval.i_int, 1 ); vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "order" ) ) { char *psz_order; int i_index; vlc_mutex_lock( &p_sys->lock ); msg_Dbg( p_this, "Changing mosaic order to %s", newval.psz_string ); psz_order = newval.psz_string; while( p_sys->i_order_length-- ) { free( p_sys->ppsz_order[p_sys->i_order_length] ); } free( p_sys->ppsz_order ); p_sys->ppsz_order = NULL; if( *psz_order ) { char *psz_end = NULL; i_index = 0; do { psz_end = strchr( psz_order, ',' ); i_index++; p_sys->ppsz_order = xrealloc( p_sys->ppsz_order, i_index * sizeof(char *) ); p_sys->ppsz_order[i_index - 1] = strndup( psz_order, psz_end - psz_order ); psz_order = psz_end+1; } while( psz_end ); p_sys->i_order_length = i_index; } vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "offsets" ) ) { vlc_mutex_lock( &p_sys->lock ); msg_Info( p_this, "Changing mosaic-offsets to %s", newval.psz_string ); if( p_sys->i_offsets_length != 0 ) { p_sys->i_offsets_length = 0; free( p_sys->pi_x_offsets ); free( p_sys->pi_y_offsets ); p_sys->pi_x_offsets = NULL; p_sys->pi_y_offsets = NULL; } mosaic_ParseSetOffsets( p_this, p_sys, newval.psz_string ); vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "keep-aspect-ratio" ) ) { vlc_mutex_lock( &p_sys->lock ); if( newval.i_int ) { msg_Dbg( p_this, "keeping aspect ratio" ); p_sys->b_ar = 1; } else { msg_Dbg( p_this, "won't keep aspect ratio" ); p_sys->b_ar = 0; } vlc_mutex_unlock( &p_sys->lock ); } else if( VAR_IS( "keep-picture" ) ) { vlc_mutex_lock( &p_sys->lock ); p_sys->b_keep = newval.b_bool; if ( !p_sys->b_keep && !p_sys->p_image ) { p_sys->p_image = image_HandlerCreate( p_this ); } vlc_mutex_unlock( &p_sys->lock ); } return VLC_SUCCESS; }