logo.c
上传用户:riyaled888
上传日期:2009-03-27
资源大小:7338k
文件大小:23k
- /*****************************************************************************
- * logo.c : logo video plugin for vlc
- *****************************************************************************
- * Copyright (C) 2003-2004 VideoLAN
- * $Id: logo.c 9268 2004-11-10 13:01:48Z gbazin $
- *
- * Authors: Gildas Bazin <gbazin@videolan.org>
- * Simon Latapie <garf@videolan.org>
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #include <stdlib.h> /* malloc(), free() */
- #include <string.h>
- #include <png.h>
- #include <vlc/vlc.h>
- #include <vlc/vout.h>
- #include "vlc_filter.h"
- #include "filter_common.h"
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- static int Create ( vlc_object_t * );
- static void Destroy ( vlc_object_t * );
- static int Init ( vout_thread_t * );
- static void End ( vout_thread_t * );
- static void Render ( vout_thread_t *, picture_t * );
- static int SendEvents( vlc_object_t *, char const *,
- vlc_value_t, vlc_value_t, void * );
- static int MouseEvent ( vlc_object_t *, char const *,
- vlc_value_t , vlc_value_t , void * );
- static int Control ( vout_thread_t *, int, va_list );
- static int CreateFilter ( vlc_object_t * );
- static void DestroyFilter( vlc_object_t * );
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- #define FILE_TEXT N_("Logo filename")
- #define FILE_LONGTEXT N_("Full path of the PNG file to use.")
- #define POSX_TEXT N_("X coordinate of the logo")
- #define POSX_LONGTEXT N_("You can move the logo by left-clicking on it." )
- #define POSY_TEXT N_("Y coordinate of the logo")
- #define POSY_LONGTEXT N_("You can move the logo by left-clicking on it." )
- #define TRANS_TEXT N_("Transparency of the logo")
- #define TRANS_LONGTEXT N_("You can set the logo transparency value here "
- "(from 0 for full transparency to 255 for full opacity)." )
- #define POS_TEXT N_("Logo position")
- #define POS_LONGTEXT N_(
- "You can enforce the logo position on the video "
- "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can "
- "also use combinations of these values).")
- static int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
- static char *ppsz_pos_descriptions[] =
- { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
- N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
- vlc_module_begin();
- set_description( _("Logo video filter") );
- set_capability( "video filter", 0 );
- add_shortcut( "logo" );
- set_callbacks( Create, Destroy );
- add_file( "logo-file", NULL, NULL, FILE_TEXT, FILE_LONGTEXT, VLC_FALSE );
- add_integer( "logo-x", -1, NULL, POSX_TEXT, POSX_LONGTEXT, VLC_FALSE );
- add_integer( "logo-y", -1, NULL, POSY_TEXT, POSY_LONGTEXT, VLC_FALSE );
- add_integer_with_range( "logo-transparency", 255, 0, 255, NULL,
- TRANS_TEXT, TRANS_LONGTEXT, VLC_FALSE );
- add_integer( "logo-position", 6, NULL, POS_TEXT, POS_LONGTEXT, VLC_TRUE );
- change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 );
- /* subpicture filter submodule */
- add_submodule();
- set_capability( "sub filter", 0 );
- set_callbacks( CreateFilter, DestroyFilter );
- set_description( _("Logo sub filter") );
- add_shortcut( "logo" );
- vlc_module_end();
- /*****************************************************************************
- * LoadPNG: loads the PNG logo into memory
- *****************************************************************************/
- static picture_t *LoadPNG( vlc_object_t *p_this )
- {
- picture_t *p_pic;
- char *psz_filename;
- vlc_value_t val;
- FILE *file;
- int i, j, i_trans;
- vlc_bool_t b_alpha = VLC_TRUE;
- png_uint_32 i_width, i_height;
- int i_color_type, i_interlace_type, i_compression_type, i_filter_type;
- int i_bit_depth;
- png_bytep *p_row_pointers;
- png_structp p_png;
- png_infop p_info, p_end_info;
- var_Create( p_this, "logo-file", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
- var_Get( p_this, "logo-file", &val );
- psz_filename = val.psz_string;
- if( !psz_filename || !*psz_filename )
- {
- msg_Err( p_this, "logo file not specified" );
- return 0;
- }
- if( !(file = fopen( psz_filename , "rb" )) )
- {
- msg_Err( p_this, "logo file (%s) not found", psz_filename );
- free( psz_filename );
- return 0;
- }
- free( psz_filename );
- p_png = png_create_read_struct( PNG_LIBPNG_VER_STRING, 0, 0, 0 );
- p_info = png_create_info_struct( p_png );
- p_end_info = png_create_info_struct( p_png );
- png_init_io( p_png, file );
- png_read_info( p_png, p_info );
- png_get_IHDR( p_png, p_info, &i_width, &i_height,
- &i_bit_depth, &i_color_type, &i_interlace_type,
- &i_compression_type, &i_filter_type);
- if( i_color_type == PNG_COLOR_TYPE_PALETTE )
- png_set_palette_to_rgb( p_png );
- if( i_color_type == PNG_COLOR_TYPE_GRAY ||
- i_color_type == PNG_COLOR_TYPE_GRAY_ALPHA )
- png_set_gray_to_rgb( p_png );
- if( png_get_valid( p_png, p_info, PNG_INFO_tRNS ) )
- {
- png_set_tRNS_to_alpha( p_png );
- }
- else if( !(i_color_type & PNG_COLOR_MASK_ALPHA) )
- {
- b_alpha = VLC_FALSE;
- }
- p_row_pointers = malloc( sizeof(png_bytep) * i_height );
- for( i = 0; i < (int)i_height; i++ )
- p_row_pointers[i] = malloc( 4 * ( i_bit_depth + 7 ) / 8 * i_width );
- png_read_image( p_png, p_row_pointers );
- png_read_end( p_png, p_end_info );
- fclose( file );
- png_destroy_read_struct( &p_png, &p_info, &p_end_info );
- /* Convert to YUVA */
- p_pic = malloc( sizeof(picture_t) );
- if( vout_AllocatePicture( p_this, p_pic, VLC_FOURCC('Y','U','V','A'),
- i_width, i_height, VOUT_ASPECT_FACTOR ) !=
- VLC_SUCCESS )
- {
- for( i = 0; i < (int)i_height; i++ ) free( p_row_pointers[i] );
- free( p_row_pointers );
- return 0;
- }
- var_Create(p_this, "logo-transparency", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT);
- var_Get( p_this, "logo-transparency", &val );
- i_trans = __MAX( __MIN( val.i_int, 255 ), 0 );
- for( j = 0; j < (int)i_height ; j++ )
- {
- uint8_t *p = (uint8_t *)p_row_pointers[j];
- for( i = 0; i < (int)i_width ; i++ )
- {
- int i_offset = i + j * p_pic->p[Y_PLANE].i_pitch;
- p_pic->p[Y_PLANE].p_pixels[i_offset] =
- (p[0] * 257L + p[1] * 504 + p[2] * 98)/1000 + 16;
- p_pic->p[U_PLANE].p_pixels[i_offset] =
- (p[2] * 439L - p[0] * 148 - p[1] * 291)/1000 + 128;
- p_pic->p[V_PLANE].p_pixels[i_offset] =
- (p[0] * 439L - p[1] * 368 - p[2] * 71)/1000 + 128;
- p_pic->p[A_PLANE].p_pixels[i_offset] =
- b_alpha ? (p[3] * i_trans) / 255 : i_trans;
- p += (b_alpha ? 4 : 3);
- }
- }
- for( i = 0; i < (int)i_height; i++ ) free( p_row_pointers[i] );
- free( p_row_pointers );
- return p_pic;
- }
- /*****************************************************************************
- * vout_sys_t: logo video output method descriptor
- *****************************************************************************
- * This structure is part of the video output thread descriptor.
- * It describes the Invert specific properties of an output thread.
- *****************************************************************************/
- struct vout_sys_t
- {
- vout_thread_t *p_vout;
- filter_t *p_blend;
- picture_t *p_pic;
- int i_width, i_height;
- int pos, posx, posy;
- };
- /*****************************************************************************
- * Create: allocates logo video thread output method
- *****************************************************************************/
- static int Create( vlc_object_t *p_this )
- {
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
- vout_sys_t *p_sys;
- vlc_value_t val;
- /* Allocate structure */
- p_sys = p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
- if( p_sys == NULL )
- {
- msg_Err( p_vout, "out of memory" );
- return VLC_ENOMEM;
- }
- p_vout->pf_init = Init;
- p_vout->pf_end = End;
- p_vout->pf_manage = NULL;
- p_vout->pf_render = Render;
- p_vout->pf_display = NULL;
- p_vout->pf_control = Control;
- var_Create( p_this, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- var_Get( p_this, "logo-position", &val );
- p_sys->pos = val.i_int;
- var_Create( p_this, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- var_Get( p_this, "logo-x", &val );
- p_sys->posx = val.i_int;
- var_Create( p_this, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- var_Get( p_this, "logo-y", &val );
- p_sys->posy = val.i_int;
- p_sys->p_pic = LoadPNG( p_this );
- if( !p_sys->p_pic )
- {
- free( p_sys );
- return VLC_EGENERIC;
- }
- p_sys->i_width = p_sys->p_pic->p[Y_PLANE].i_visible_pitch;
- p_sys->i_height = p_sys->p_pic->p[Y_PLANE].i_visible_lines;
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Init: initialize logo video thread output method
- *****************************************************************************/
- static int Init( vout_thread_t *p_vout )
- {
- vout_sys_t *p_sys = p_vout->p_sys;
- picture_t *p_pic;
- int i_index;
- I_OUTPUTPICTURES = 0;
- /* Initialize the output structure */
- p_vout->output.i_chroma = p_vout->render.i_chroma;
- p_vout->output.i_width = p_vout->render.i_width;
- p_vout->output.i_height = p_vout->render.i_height;
- p_vout->output.i_aspect = p_vout->render.i_aspect;
- /* Load the video blending filter */
- p_sys->p_blend = vlc_object_create( p_vout, sizeof(filter_t) );
- vlc_object_attach( p_sys->p_blend, p_vout );
- p_sys->p_blend->fmt_out.video.i_x_offset =
- p_sys->p_blend->fmt_out.video.i_y_offset = 0;
- p_sys->p_blend->fmt_in.video.i_x_offset =
- p_sys->p_blend->fmt_in.video.i_y_offset = 0;
- p_sys->p_blend->fmt_out.video.i_aspect = p_vout->render.i_aspect;
- p_sys->p_blend->fmt_out.video.i_chroma = p_vout->output.i_chroma;
- p_sys->p_blend->fmt_in.video.i_chroma = VLC_FOURCC('Y','U','V','A');
- p_sys->p_blend->fmt_in.video.i_aspect = VOUT_ASPECT_FACTOR;
- p_sys->p_blend->fmt_in.video.i_width =
- p_sys->p_blend->fmt_in.video.i_visible_width =
- p_sys->p_pic->p[Y_PLANE].i_visible_pitch;
- p_sys->p_blend->fmt_in.video.i_height =
- p_sys->p_blend->fmt_in.video.i_visible_height =
- p_sys->p_pic->p[Y_PLANE].i_visible_lines;
- p_sys->p_blend->fmt_out.video.i_width =
- p_sys->p_blend->fmt_out.video.i_visible_width =
- p_vout->output.i_width;
- p_sys->p_blend->fmt_out.video.i_height =
- p_sys->p_blend->fmt_out.video.i_visible_height =
- p_vout->output.i_height;
- p_sys->p_blend->p_module =
- module_Need( p_sys->p_blend, "video blending", 0, 0 );
- if( !p_sys->p_blend->p_module )
- {
- msg_Err( p_vout, "can't open blending filter, aborting" );
- vlc_object_detach( p_sys->p_blend );
- vlc_object_destroy( p_sys->p_blend );
- return VLC_EGENERIC;
- }
- if( p_sys->posx < 0 || p_sys->posy < 0 )
- {
- p_sys->posx = 0; p_sys->posy = 0;
- if( p_sys->pos & SUBPICTURE_ALIGN_BOTTOM )
- {
- p_sys->posy = p_vout->render.i_height - p_sys->i_height;
- }
- else if ( !(p_sys->pos & SUBPICTURE_ALIGN_TOP) )
- {
- p_sys->posy = p_vout->render.i_height / 2 - p_sys->i_height / 2;
- }
- if( p_sys->pos & SUBPICTURE_ALIGN_RIGHT )
- {
- p_sys->posx = p_vout->render.i_width - p_sys->i_width;
- }
- else if ( !(p_sys->pos & SUBPICTURE_ALIGN_LEFT) )
- {
- p_sys->posx = p_vout->render.i_width / 2 - p_sys->i_width / 2;
- }
- }
- /* Try to open the real video output */
- msg_Dbg( p_vout, "spawning the real video output" );
- p_sys->p_vout =
- vout_Create( p_vout, p_vout->render.i_width, p_vout->render.i_height,
- p_vout->render.i_chroma, p_vout->render.i_aspect );
- /* Everything failed */
- if( p_sys->p_vout == NULL )
- {
- msg_Err( p_vout, "can't open vout, aborting" );
- return VLC_EGENERIC;
- }
- var_AddCallback( p_sys->p_vout, "mouse-x", MouseEvent, p_vout);
- var_AddCallback( p_sys->p_vout, "mouse-y", MouseEvent, p_vout);
- ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
- ADD_CALLBACKS( p_sys->p_vout, SendEvents );
- ADD_PARENT_CALLBACKS( SendEventsToChild );
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * End: terminate logo video thread output method
- *****************************************************************************/
- static void End( vout_thread_t *p_vout )
- {
- vout_sys_t *p_sys = p_vout->p_sys;
- int i_index;
- /* Free the fake output buffers we allocated */
- for( i_index = I_OUTPUTPICTURES ; i_index ; )
- {
- i_index--;
- free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
- }
- var_DelCallback( p_sys->p_vout, "mouse-x", MouseEvent, p_vout);
- var_DelCallback( p_sys->p_vout, "mouse-y", MouseEvent, p_vout);
- if( p_sys->p_vout )
- {
- DEL_CALLBACKS( p_sys->p_vout, SendEvents );
- vlc_object_detach( p_sys->p_vout );
- vout_Destroy( p_sys->p_vout );
- }
- if( p_sys->p_blend->p_module )
- module_Unneed( p_sys->p_blend, p_sys->p_blend->p_module );
- vlc_object_detach( p_sys->p_blend );
- vlc_object_destroy( p_sys->p_blend );
- }
- /*****************************************************************************
- * Destroy: destroy logo video thread output method
- *****************************************************************************/
- static void Destroy( vlc_object_t *p_this )
- {
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
- vout_sys_t *p_sys = p_vout->p_sys;
- DEL_PARENT_CALLBACKS( SendEventsToChild );
- if( p_sys->p_pic && p_sys->p_pic->p_data_orig )
- free( p_sys->p_pic->p_data_orig );
- if( p_sys->p_pic ) free( p_sys->p_pic );
- free( p_sys );
- }
- /*****************************************************************************
- * Render: render the logo onto the video
- *****************************************************************************/
- static void Render( vout_thread_t *p_vout, picture_t *p_pic )
- {
- vout_sys_t *p_sys = p_vout->p_sys;
- picture_t *p_outpic;
- /* This is a new frame. Get a structure from the video_output. */
- while( !(p_outpic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 )) )
- {
- if( p_vout->b_die || p_vout->b_error ) return;
- msleep( VOUT_OUTMEM_SLEEP );
- }
- vout_CopyPicture( p_vout, p_outpic, p_pic );
- vout_DatePicture( p_sys->p_vout, p_outpic, p_pic->date );
- p_sys->p_blend->pf_video_blend( p_sys->p_blend, p_outpic, p_outpic,
- p_sys->p_pic, p_sys->posx, p_sys->posy,
- 255 );
- vout_DisplayPicture( p_sys->p_vout, p_outpic );
- }
- /*****************************************************************************
- * SendEvents: forward mouse and keyboard events to the parent p_vout
- *****************************************************************************/
- static int SendEvents( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval, void *p_data )
- {
- var_Set( (vlc_object_t *)p_data, psz_var, newval );
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * MouseEvent: callback for mouse events
- *****************************************************************************/
- static int MouseEvent( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval, void *p_data )
- {
- vout_thread_t *p_vout = (vout_thread_t*)p_data;
- vout_sys_t *p_sys = p_vout->p_sys;
- vlc_value_t valb;
- int i_delta;
- var_Get( p_vout->p_sys->p_vout, "mouse-button-down", &valb );
- i_delta = newval.i_int - oldval.i_int;
- if( (valb.i_int & 0x1) == 0 )
- {
- return VLC_SUCCESS;
- }
- if( psz_var[6] == 'x' )
- {
- vlc_value_t valy;
- var_Get( p_vout->p_sys->p_vout, "mouse-y", &valy );
- if( newval.i_int >= (int)p_sys->posx &&
- valy.i_int >= (int)p_sys->posy &&
- newval.i_int <= (int)(p_sys->posx + p_sys->i_width) &&
- valy.i_int <= (int)(p_sys->posy + p_sys->i_height) )
- {
- p_sys->posx = __MIN( __MAX( p_sys->posx + i_delta, 0 ),
- p_vout->output.i_width - p_sys->i_width );
- }
- }
- else if( psz_var[6] == 'y' )
- {
- vlc_value_t valx;
- var_Get( p_vout->p_sys->p_vout, "mouse-x", &valx );
- if( valx.i_int >= (int)p_sys->posx &&
- newval.i_int >= (int)p_sys->posy &&
- valx.i_int <= (int)(p_sys->posx + p_sys->i_width) &&
- newval.i_int <= (int)(p_sys->posy + p_sys->i_height) )
- {
- p_sys->posy = __MIN( __MAX( p_sys->posy + i_delta, 0 ),
- p_vout->output.i_height - p_sys->i_height );
- }
- }
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Control: control facility for the vout (forwards to child vout)
- *****************************************************************************/
- static int Control( vout_thread_t *p_vout, int i_query, va_list args )
- {
- return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
- }
- /*****************************************************************************
- * SendEventsToChild: forward events to the child/children vout
- *****************************************************************************/
- static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval, void *p_data )
- {
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
- var_Set( p_vout->p_sys->p_vout, psz_var, newval );
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * filter_sys_t: logo filter descriptor
- *****************************************************************************/
- struct filter_sys_t
- {
- picture_t *p_pic;
- int i_width, i_height;
- int pos, posx, posy;
- vlc_bool_t b_absolute;
- mtime_t i_last_date;
- };
- static subpicture_t *Filter( filter_t *, mtime_t );
- /*****************************************************************************
- * CreateFilter: allocates logo video filter
- *****************************************************************************/
- static int CreateFilter( vlc_object_t *p_this )
- {
- filter_t *p_filter = (filter_t *)p_this;
- filter_sys_t *p_sys;
- vlc_value_t val;
- /* Allocate structure */
- p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
- if( p_sys == NULL )
- {
- msg_Err( p_filter, "out of memory" );
- return VLC_ENOMEM;
- }
- var_Create( p_this, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- var_Get( p_this, "logo-position", &val );
- p_sys->pos = val.i_int;
- var_Create( p_this, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- var_Get( p_this, "logo-x", &val );
- p_sys->posx = val.i_int;
- var_Create( p_this, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- var_Get( p_this, "logo-y", &val );
- p_sys->posy = val.i_int;
- p_sys->b_absolute = VLC_TRUE;
- if( p_sys->posx < 0 || p_sys->posy < 0 )
- {
- p_sys->b_absolute = VLC_FALSE;
- p_sys->posx = 0; p_sys->posy = 0;
- }
- p_sys->p_pic = LoadPNG( p_this );
- if( !p_sys->p_pic )
- {
- free( p_sys );
- return VLC_EGENERIC;
- }
- p_sys->i_width = p_sys->p_pic->p[Y_PLANE].i_visible_pitch;
- p_sys->i_height = p_sys->p_pic->p[Y_PLANE].i_visible_lines;
- p_sys->i_last_date = 0;
- /* Misc init */
- p_filter->pf_sub_filter = Filter;
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * DestroyFilter: destroy logo 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;
- if( p_sys->p_pic && p_sys->p_pic->p_data_orig )
- free( p_sys->p_pic->p_data_orig );
- if( p_sys->p_pic ) free( p_sys->p_pic );
- free( p_sys );
- }
- /****************************************************************************
- * Filter: the whole thing
- ****************************************************************************
- * This function outputs subpictures at regular time intervals.
- ****************************************************************************/
- static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
- {
- filter_sys_t *p_sys = p_filter->p_sys;
- subpicture_t *p_spu;
- subpicture_region_t *p_region;
- video_format_t fmt;
- if( p_sys->i_last_date && p_sys->i_last_date + 5000000 > date ) return 0;
- /* Allocate the subpicture internal data. */
- p_spu = p_filter->pf_sub_buffer_new( p_filter );
- if( !p_spu ) return NULL;
- /* Create new SPU region */
- memset( &fmt, 0, sizeof(video_format_t) );
- fmt.i_chroma = VLC_FOURCC('Y','U','V','A');
- fmt.i_aspect = VOUT_ASPECT_FACTOR;
- fmt.i_sar_num = fmt.i_sar_den = 1;
- fmt.i_width = fmt.i_visible_width = p_sys->i_width;
- fmt.i_height = fmt.i_visible_height = p_sys->i_height;
- fmt.i_x_offset = fmt.i_y_offset = 0;
- p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
- if( !p_region )
- {
- msg_Err( p_filter, "cannot allocate SPU region" );
- p_filter->pf_sub_buffer_del( p_filter, p_spu );
- return NULL;
- }
- vout_CopyPicture( p_filter, &p_region->picture, p_sys->p_pic );
- p_region->i_x = 0;
- p_region->i_y = 0;
- p_spu->i_x = p_sys->posx;
- p_spu->i_y = p_sys->posy;
- p_spu->i_flags = p_sys->pos;
- p_spu->b_absolute = p_sys->b_absolute;
- p_spu->p_region = p_region;
- p_spu->i_start = p_sys->i_last_date = date;
- p_spu->i_stop = 0;
- p_spu->b_ephemer = VLC_TRUE;
- return p_spu;
- }