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vlc/modules/spu/mosaic.c

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/*****************************************************************************
* mosaic.c : Mosaic video plugin for vlc
*****************************************************************************
* Copyright (C) 2004-2008 VLC authors and VideoLAN
*
* 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 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 <math.h>
#include <limits.h> /* INT_MAX */
#include <vlc_common.h>
#include <vlc_configuration.h>
#include <vlc_threads.h>
#include <vlc_plugin.h>
#include <vlc_filter.h>
#include <vlc_image.h>
#include <vlc_subpicture.h>
#include "mosaic.h"
#define BLANK_DELAY VLC_TICK_FROM_SEC(1)
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int CreateFilter ( filter_t * );
static void DestroyFilter ( filter_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
*****************************************************************************/
typedef struct
{
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 ? */
unsigned 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;
} filter_sys_t;
/*****************************************************************************
* 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,
SUBPICTURE_ALIGN_LEFT,
SUBPICTURE_ALIGN_RIGHT,
SUBPICTURE_ALIGN_TOP,
SUBPICTURE_ALIGN_BOTTOM,
SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_LEFT,
SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_RIGHT,
SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_LEFT,
SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_RIGHT,
};
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_subcategory( SUBCAT_VIDEO_SUBPIC)
set_callback_sub_source( CreateFilter, 0 )
add_integer_with_range( CFG_PREFIX "alpha", 255, 0, 255,
ALPHA_TEXT, ALPHA_LONGTEXT )
add_integer_with_range( CFG_PREFIX "height", 100, 0, UINT_MAX,
HEIGHT_TEXT, HEIGHT_LONGTEXT )
add_integer_with_range( CFG_PREFIX "width", 100, 0, UINT_MAX,
WIDTH_TEXT, WIDTH_LONGTEXT )
add_integer_with_range( CFG_PREFIX "align", 5, 0, 10,
ALIGN_TEXT, ALIGN_LONGTEXT)
change_integer_list( pi_align_values, ppsz_align_descriptions )
add_integer_with_range( CFG_PREFIX "xoffset", 0, 0, INT_MAX,
XOFFSET_TEXT, XOFFSET_LONGTEXT )
add_integer_with_range( CFG_PREFIX "yoffset", 0, 0, INT_MAX,
YOFFSET_TEXT, YOFFSET_LONGTEXT )
add_integer_with_range( CFG_PREFIX "borderw", 0, 0, INT_MAX,
BORDERW_TEXT, BORDERW_LONGTEXT )
add_integer_with_range( CFG_PREFIX "borderh", 0, 0, INT_MAX,
BORDERH_TEXT, BORDERH_LONGTEXT )
add_integer_with_range( CFG_PREFIX "position", 0, 0, 2,
POS_TEXT, POS_LONGTEXT )
change_integer_list( pi_pos_values, ppsz_pos_descriptions )
add_integer_with_range( CFG_PREFIX "rows", 2, 1, INT_MAX,
ROWS_TEXT, ROWS_LONGTEXT )
add_integer_with_range( CFG_PREFIX "cols", 2, 1, INT_MAX,
COLS_TEXT, COLS_LONGTEXT )
add_bool( CFG_PREFIX "keep-aspect-ratio", false,
AR_TEXT, AR_LONGTEXT )
add_bool( CFG_PREFIX "keep-picture", false,
KEEP_TEXT, KEEP_LONGTEXT )
add_string( CFG_PREFIX "order", "",
ORDER_TEXT, ORDER_LONGTEXT )
add_string( CFG_PREFIX "offsets", "",
OFFSETS_TEXT, OFFSETS_LONGTEXT )
add_integer_with_range( CFG_PREFIX "delay", 0, 0, INT_MAX, DELAY_TEXT, DELAY_LONGTEXT )
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 )
static const struct vlc_filter_operations filter_ops = {
.source_sub = Filter, .close = DestroyFilter,
};
/*****************************************************************************
* CreateFiler: allocate mosaic video filter
*****************************************************************************/
static int CreateFilter( filter_t *p_filter )
{
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->ops = &filter_ops;
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 ) \
i_command = var_CreateGetIntegerCommand( p_filter, CFG_PREFIX #name ); \
p_sys->i_##name = i_command; \
var_AddCallback( p_filter, CFG_PREFIX #name, MosaicCallback, p_sys );
GET_VAR( width );
GET_VAR( height );
GET_VAR( xoffset );
GET_VAR( yoffset );
GET_VAR( align );
GET_VAR( borderw );
GET_VAR( borderh );
GET_VAR( rows );
GET_VAR( cols );
GET_VAR( alpha );
GET_VAR( position );
#undef GET_VAR
if( p_sys->i_align == 3 || p_sys->i_align == 7 )
p_sys->i_align = 5;
i_command = var_CreateGetIntegerCommand( p_filter, CFG_PREFIX "delay" );
p_sys->i_delay = VLC_TICK_FROM_MS( i_command );
var_AddCallback( p_filter, CFG_PREFIX "delay", MosaicCallback, p_sys );
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( filter_t *p_filter )
{
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;
}
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;
/* 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->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 ( !vlc_picture_chain_IsEmpty( &p_es->pictures ) )
{
picture_t *front = vlc_picture_chain_PeekFront( &p_es->pictures );
if ( front->date + p_sys->i_delay >= date )
break; // front picture not late
if ( vlc_picture_chain_HasNext( &p_es->pictures ) )
{
// front picture is late and has more pictures chained, skip it
front = vlc_picture_chain_PopFront( &p_es->pictures );
picture_Release( front );
continue;
}
if ( front->date + p_sys->i_delay + BLANK_DELAY < date )
{
// front picture is late and too old, don't display it
front = vlc_picture_chain_PopFront( &p_es->pictures );
// the picture chain is empty as the front didn't have chained pics
picture_Release( front );
break;
}
else
{
// front picture is a little late, display it
msg_Dbg( p_filter, "too late picture for %s (%"PRId64 ")",
p_es->psz_id,
date - front->date - p_sys->i_delay );
break;
}
}
if ( vlc_picture_chain_IsEmpty( &p_es->pictures ) )
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 ;
p_converted = vlc_picture_chain_PeekFront( &p_es->pictures );
if ( !p_sys->b_keep )
{
video_format_Init( &fmt_in, 0 );
video_format_Init( &fmt_out, 0 );
/* Convert the images */
fmt_in.i_chroma = p_converted->format.i_chroma;
fmt_in.i_height = p_converted->format.i_height;
fmt_in.i_width = p_converted->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_converted,
&fmt_in, &fmt_out );
video_format_Clean( &fmt_in );
video_format_Clean( &fmt_out );
if( !p_converted )
{
msg_Warn( p_filter,
"image resizing and chroma conversion failed" );
continue;
}
}
p_region = subpicture_region_ForPicture( NULL, p_converted );
if( !p_sys->b_keep )
picture_Release( p_converted );
if( !p_region )
{
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;
}
p_region->b_absolute = false;
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( p_converted->format.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 - p_converted->format.i_width ) / 2;
}
if( p_converted->format.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 - p_converted->format.i_height ) / 2;
}
}
p_region->i_align = p_sys->i_align;
p_region->i_alpha = p_es->i_alpha;
vlc_spu_regions_push(&p_spu->regions, 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 = 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 = newval.i_int;
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 = newval.i_int;
vlc_mutex_unlock( &p_sys->lock );
}
else if( VAR_IS( "width" ) )
{
vlc_mutex_lock( &p_sys->lock );
msg_Dbg( p_this, "changing width from %upx to %upx",
p_sys->i_width, (unsigned)newval.i_int );
p_sys->i_width = newval.i_int;
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 %upx to %upx",
p_sys->i_xoffset, (unsigned)newval.i_int );
p_sys->i_xoffset = newval.i_int;
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 = newval.i_int;
vlc_mutex_unlock( &p_sys->lock );
}
else if( VAR_IS( "align" ) )
{
int i_old = 0, i_new = 0;
vlc_mutex_lock( &p_sys->lock );
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 = newval.i_int;
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 = newval.i_int;
vlc_mutex_unlock( &p_sys->lock );
}
else if( VAR_IS( "position" ) )
{
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 = newval.i_int;
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 = newval.i_int;
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;
}