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111 lines
3.3 KiB
C
111 lines
3.3 KiB
C
/*****************************************************************************
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* vlc_spu.h: spu_t definition and functions.
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*****************************************************************************
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* Copyright (C) 1999-2010 the VideoLAN team
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* Copyright (C) 2010 Laurent Aimar
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* $Id$
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*
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* Authors: Gildas Bazin <gbazin@videolan.org>
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* Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef VLC_SPU_H
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#define VLC_SPU_H 1
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#include <vlc_subpicture.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**********************************************************************
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* Base SPU structures
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**********************************************************************/
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/**
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* \defgroup spu Subpicture Unit
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* This module describes the programming interface for the subpicture unit.
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* It includes functions allowing to create/destroy an spu, and render
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* subpictures.
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* @{
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*/
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typedef struct spu_private_t spu_private_t;
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/* Default subpicture channel ID */
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#define SPU_DEFAULT_CHANNEL (1)
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/**
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* Subpicture unit descriptor
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*/
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struct spu_t
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{
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VLC_COMMON_MEMBERS
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spu_private_t *p;
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};
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VLC_EXPORT( spu_t *, spu_Create, ( vlc_object_t * ) );
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#define spu_Create(a) spu_Create(VLC_OBJECT(a))
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VLC_EXPORT( void, spu_Destroy, ( spu_t * ) );
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/**
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* This function sends a subpicture to the spu_t core.
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*
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* You cannot use the provided subpicture anymore. The spu_t core
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* will destroy it at its convenience.
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*/
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VLC_EXPORT( void, spu_DisplaySubpicture, ( spu_t *, subpicture_t * ) );
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/**
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* This function asks the spu_t core a list of subpictures to display.
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*
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* The returned list can only be used by spu_RenderSubpictures.
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*/
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VLC_EXPORT( subpicture_t *, spu_SortSubpictures, ( spu_t *, mtime_t render_subtitle_date, bool b_subtitle_only ) );
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/**
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* This function renders a list of subpicture_t on the provided picture.
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*
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* \param p_fmt_dst is the format of the destination picture.
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* \param p_fmt_src is the format of the original(source) video.
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*/
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VLC_EXPORT( void, spu_RenderSubpictures, ( spu_t *, picture_t *, const video_format_t *p_fmt_dst, subpicture_t *p_list, const video_format_t *p_fmt_src, mtime_t render_subtitle_date ) );
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/**
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* It registers a new SPU channel.
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*/
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VLC_EXPORT( int, spu_RegisterChannel, ( spu_t * ) );
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/**
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* It clears all subpictures associated to a SPU channel.
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*/
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VLC_EXPORT( void, spu_ClearChannel, ( spu_t *, int ) );
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/**
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* It changes the sub filters list
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*/
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VLC_EXPORT( void, spu_ChangeFilters, ( spu_t *, const char * ) );
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/** @}*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* VLC_SPU_H */
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