filter_common.h
上传用户：riyaled888
上传日期：2009-03-27
资源大小：7338k
文件大小：6k
- /*****************************************************************************
- * filter_common.h: Common filter functions
- *****************************************************************************
- * Copyright (C) 2001, 2002, 2003 VideoLAN
- * $Id: filter_common.h 8171 2004-07-12 06:42:47Z zorglub $
- *
- * Authors: Samuel Hocevar <sam@zoy.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.
- *****************************************************************************/
- #define ALLOCATE_DIRECTBUFFERS( i_max )
- /* Try to initialize i_max direct buffers */
- while( I_OUTPUTPICTURES < ( i_max ) )
- {
- p_pic = NULL;
-
- /* Find an empty picture slot */
- for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
- {
- if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
- {
- p_pic = p_vout->p_picture + i_index;
- break;
- }
- }
-
- if( p_pic == NULL )
- {
- break;
- }
-
- /* Allocate the picture */
- vout_AllocatePicture( VLC_OBJECT(p_vout), p_pic, p_vout->output.i_chroma,
- p_vout->output.i_width,
- p_vout->output.i_height,
- p_vout->output.i_aspect );
-
- if( !p_pic->i_planes )
- {
- break;
- }
-
- p_pic->i_status = DESTROYED_PICTURE;
- p_pic->i_type = DIRECT_PICTURE;
-
- PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
-
- I_OUTPUTPICTURES++;
- }
- /*****************************************************************************
- * SetParentVal: forward variable value to parent whithout triggering the
- * callback
- *****************************************************************************/
- static int SetParentVal( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval, void *p_data )
- {
- var_Change( (vlc_object_t *)p_data, psz_var, VLC_VAR_SETVALUE,
- &newval, NULL );
- return VLC_SUCCESS;
- }
- #define ADD_CALLBACKS( newvout, handler )
- var_AddCallback( newvout, "fullscreen", SetParentVal, p_vout );
- var_AddCallback( newvout, "mouse-x", SendEvents, p_vout );
- var_AddCallback( newvout, "mouse-y", SendEvents, p_vout );
- var_AddCallback( newvout, "mouse-moved", SendEvents, p_vout );
- var_AddCallback( newvout, "mouse-clicked", SendEvents, p_vout );
- #define DEL_CALLBACKS( newvout, handler )
- var_DelCallback( newvout, "fullscreen", SetParentVal, p_vout );
- var_DelCallback( newvout, "mouse-x", SendEvents, p_vout );
- var_DelCallback( newvout, "mouse-y", SendEvents, p_vout );
- var_DelCallback( newvout, "mouse-moved", SendEvents, p_vout );
- var_DelCallback( newvout, "mouse-clicked", SendEvents, p_vout );
- #define ADD_PARENT_CALLBACKS( handler )
- var_AddCallback( p_vout, "fullscreen", handler, NULL );
- var_AddCallback( p_vout, "aspect-ratio", handler, NULL );
- var_AddCallback( p_vout, "crop", handler, NULL );
- #define DEL_PARENT_CALLBACKS( handler )
- var_DelCallback( p_vout, "fullscreen", handler, NULL );
- var_DelCallback( p_vout, "aspect-ratio", handler, NULL );
- var_DelCallback( p_vout, "crop", handler, NULL );
- static int SendEventsToChild( vlc_object_t *, char const *,
- vlc_value_t, vlc_value_t, void * );
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