qt_demoe/vlcdemo/vlc/vlc2/include/plugins/vlc_spu.h

113 lines
3.4 KiB
C

/*****************************************************************************
* vlc_spu.h: spu_t definition and functions.
*****************************************************************************
* Copyright (C) 1999-2010 VLC authors and VideoLAN
* Copyright (C) 2010 Laurent Aimar
* $Id: d448d06f8c9f9c91d70239ff0d07cb5ceac06423 $
*
* Authors: Gildas Bazin <gbazin@videolan.org>
* Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
*
* 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.
*****************************************************************************/
#ifndef VLC_SPU_H
#define VLC_SPU_H 1
#include <vlc_subpicture.h>
#ifdef __cplusplus
extern "C" {
#endif
/**********************************************************************
* Base SPU structures
**********************************************************************/
/**
* \defgroup spu Subpicture Unit
* This module describes the programming interface for the subpicture unit.
* It includes functions allowing to create/destroy an spu, and render
* subpictures.
* @{
*/
typedef struct spu_private_t spu_private_t;
/* Default subpicture channel ID */
#define SPU_DEFAULT_CHANNEL (1)
/**
* Subpicture unit descriptor
*/
struct spu_t
{
VLC_COMMON_MEMBERS
spu_private_t *p;
};
VLC_API spu_t * spu_Create( vlc_object_t * );
#define spu_Create(a) spu_Create(VLC_OBJECT(a))
VLC_API void spu_Destroy( spu_t * );
/**
* This function sends a subpicture to the spu_t core.
*
* You cannot use the provided subpicture anymore. The spu_t core
* will destroy it at its convenience.
*/
VLC_API void spu_PutSubpicture( spu_t *, subpicture_t * );
/**
* This function will return an unique subpicture containing the OSD and
* subtitles visibles at the requested date.
*
* \param p_chroma_list is a list of supported chroma for the output (can be NULL)
* \param p_fmt_dst is the format of the picture on which the return subpicture will be rendered.
* \param p_fmt_src is the format of the original(source) video.
*
* The returned value if non NULL must be released by subpicture_Delete().
*/
VLC_API subpicture_t * spu_Render( spu_t *, const vlc_fourcc_t *p_chroma_list, const video_format_t *p_fmt_dst, const video_format_t *p_fmt_src, mtime_t render_subtitle_date, mtime_t render_osd_date, bool ignore_osd );
/**
* It registers a new SPU channel.
*/
VLC_API int spu_RegisterChannel( spu_t * );
/**
* It clears all subpictures associated to a SPU channel.
*/
VLC_API void spu_ClearChannel( spu_t *, int );
/**
* It changes the sub sources list
*/
VLC_API void spu_ChangeSources( spu_t *, const char * );
/**
* It changes the sub filters list
*/
VLC_API void spu_ChangeFilters( spu_t *, const char * );
/** @}*/
#ifdef __cplusplus
}
#endif
#endif /* VLC_SPU_H */