mosaic.c
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:33k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * mosaic.c : Mosaic video plugin for vlc
- *****************************************************************************
- * Copyright (C) 2004-2008 the VideoLAN team
- * $Id: 57bbff925d834928d508fb8846b911937368846a $
- *
- * Authors: Antoine Cellerier <dionoea at videolan dot org>
- * Christophe Massiot <massiot@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 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 General Public License for more details.
- *
- * You should have received a copy of the GNU 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 <vlc_common.h>
- #include <vlc_plugin.h>
- #include <vlc_vout.h>
- #include <math.h>
- #include <limits.h> /* INT_MAX */
- #include <vlc_filter.h>
- #include <vlc_image.h>
- #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 *, mtime_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 */
- vlc_mutex_t *p_lock; /* Pointer to mosaic bridge 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;
- mtime_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 "
- "positionning 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 "
- "positionning 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 filter") )
- set_shortname( N_("Mosaic") )
- set_category( CAT_VIDEO )
- set_subcategory( SUBCAT_VIDEO_SUBPIC)
- set_capability( "sub filter", 0 )
- set_callbacks( CreateFilter, DestroyFilter )
- add_integer_with_range( CFG_PREFIX "alpha", 255, 0, 255, NULL,
- ALPHA_TEXT, ALPHA_LONGTEXT, false )
- add_integer( CFG_PREFIX "height", 100, NULL,
- HEIGHT_TEXT, HEIGHT_LONGTEXT, false )
- add_integer( CFG_PREFIX "width", 100, NULL,
- WIDTH_TEXT, WIDTH_LONGTEXT, false )
- add_integer( CFG_PREFIX "align", 5, NULL,
- ALIGN_TEXT, ALIGN_LONGTEXT, true)
- change_integer_list( pi_align_values, ppsz_align_descriptions, NULL )
- add_integer( CFG_PREFIX "xoffset", 0, NULL,
- XOFFSET_TEXT, XOFFSET_LONGTEXT, true )
- add_integer( CFG_PREFIX "yoffset", 0, NULL,
- YOFFSET_TEXT, YOFFSET_LONGTEXT, true )
- add_integer( CFG_PREFIX "borderw", 0, NULL,
- BORDERW_TEXT, BORDERW_LONGTEXT, true )
- add_deprecated_alias( CFG_PREFIX "vborder" )
- add_integer( CFG_PREFIX "borderh", 0, NULL,
- BORDERH_TEXT, BORDERH_LONGTEXT, true )
- add_deprecated_alias( CFG_PREFIX "hborder" )
- add_integer( CFG_PREFIX "position", 0, NULL,
- POS_TEXT, POS_LONGTEXT, false )
- change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL )
- add_integer( CFG_PREFIX "rows", 2, NULL,
- ROWS_TEXT, ROWS_LONGTEXT, false )
- add_integer( CFG_PREFIX "cols", 2, NULL,
- COLS_TEXT, COLS_LONGTEXT, false )
- add_bool( CFG_PREFIX "keep-aspect-ratio", 0, NULL,
- AR_TEXT, AR_LONGTEXT, false )
- add_bool( CFG_PREFIX "keep-picture", 0, NULL,
- KEEP_TEXT, KEEP_LONGTEXT, false )
- add_string( CFG_PREFIX "order", "", NULL,
- ORDER_TEXT, ORDER_LONGTEXT, false )
- add_string( CFG_PREFIX "offsets", "", NULL,
- OFFSETS_TEXT, OFFSETS_LONGTEXT, false )
- add_integer( CFG_PREFIX "delay", 0, NULL, 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.
- *****************************************************************************/
- #define mosaic_ParseSetOffsets( a, b, c )
- __mosaic_ParseSetOffsets( VLC_OBJECT( a ), b, c )
- 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 =
- realloc( 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 =
- realloc( 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;
- }
- }
- /*****************************************************************************
- * 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;
- vlc_object_t *p_libvlc = VLC_OBJECT( p_filter->p_libvlc );
- char *psz_order, *_psz_order;
- char *psz_offsets;
- int i_index;
- vlc_value_t val;
- int i_command;
- /* The mosaic thread is more important than the decoder threads */
- vlc_thread_set_priority( p_this, VLC_THREAD_PRIORITY_OUTPUT );
- /* Allocate structure */
- p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
- if( p_sys == NULL )
- return VLC_ENOMEM;
- p_filter->pf_sub_filter = Filter;
- vlc_mutex_init( &p_sys->lock );
- vlc_mutex_lock( &p_sys->lock );
- var_Create( p_libvlc, "mosaic-lock", VLC_VAR_MUTEX );
- var_Get( p_libvlc, "mosaic-lock", &val );
- p_sys->p_lock = val.p_address;
- 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 = __MIN( max, __MAX( min, i_command ) );
- 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; /* FIXME: NOT THREAD SAFE w.r.t. callback */
- 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; /* FIXME: NOT THREAD SAFE w.r.t. callback */
- 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 = realloc( 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 );
- }
- /*****************************************************************************
- * MosaicReleasePicture : Hack to avoid picture duplication
- *****************************************************************************/
- static void MosaicReleasePicture( picture_t *p_picture )
- {
- picture_t *p_original_pic = (picture_t *)p_picture->p_sys;
- picture_Release( p_original_pic );
- }
- /*****************************************************************************
- * Filter
- *****************************************************************************/
- static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
- {
- filter_sys_t *p_sys = p_filter->p_sys;
- bridge_t *p_bridge;
- subpicture_t *p_spu;
- int i_index, 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. */
- 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;
- vlc_mutex_lock( &p_sys->lock );
- vlc_mutex_lock( p_sys->p_lock );
- p_bridge = GetBridge( p_filter );
- if ( p_bridge == NULL )
- {
- vlc_mutex_unlock( p_sys->p_lock );
- 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 ( 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 */
- int i;
- for( 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 ( 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;
- memset( &fmt_in, 0, sizeof( video_format_t ) );
- memset( &fmt_out, 0, sizeof( video_format_t ) );
- 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 ;
- 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_FOURCC('Y','U','V','A') ||
- fmt_in.i_chroma == VLC_FOURCC('R','G','B','A') )
- fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
- else
- fmt_out.i_chroma = VLC_FOURCC('I','4','2','0');
- 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" );
- 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 )
- {
- msg_Err( p_filter, "cannot allocate SPU region" );
- p_filter->pf_sub_buffer_del( p_filter, p_spu );
- vlc_mutex_unlock( p_sys->p_lock );
- vlc_mutex_unlock( &p_sys->lock );
- return p_spu;
- }
- 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;
- }
- p_region_prev = p_region;
- }
- vlc_mutex_unlock( p_sys->p_lock );
- 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, newval.i_int);
- p_sys->i_alpha = __MIN( __MAX( 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, 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, 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, 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, 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 = __MIN( __MAX( 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],
- 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, 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, 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],
- 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, 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, 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 = realloc( 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;
- }