新增视频流播放
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feiyangqingyun
209
vlcdemo/vlc/vlc2/include/libvlc_media_list.h
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209
vlcdemo/vlc/vlc2/include/libvlc_media_list.h
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/*****************************************************************************
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* libvlc_media_list.h: libvlc_media_list API
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*****************************************************************************
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* Copyright (C) 1998-2008 VLC authors and VideoLAN
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* $Id: 015824bf54e656cc67838452c7e99a00a452af6e $
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*
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* Authors: Pierre d'Herbemont
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef LIBVLC_MEDIA_LIST_H
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#define LIBVLC_MEDIA_LIST_H 1
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/**
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* \file
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* This file defines libvlc_media_list API
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*/
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# ifdef __cplusplus
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extern "C" {
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# endif
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/** \defgroup libvlc_media_list LibVLC media list
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* \ingroup libvlc
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* A LibVLC media list holds multiple @ref libvlc_media_t media descriptors.
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* @{
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*/
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typedef struct libvlc_media_list_t libvlc_media_list_t;
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/**
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* Create an empty media list.
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*
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* \param p_instance libvlc instance
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* \return empty media list, or NULL on error
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*/
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LIBVLC_API libvlc_media_list_t *
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libvlc_media_list_new( libvlc_instance_t *p_instance );
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/**
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* Release media list created with libvlc_media_list_new().
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*
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* \param p_ml a media list created with libvlc_media_list_new()
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*/
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LIBVLC_API void
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libvlc_media_list_release( libvlc_media_list_t *p_ml );
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/**
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* Retain reference to a media list
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*
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* \param p_ml a media list created with libvlc_media_list_new()
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*/
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LIBVLC_API void
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libvlc_media_list_retain( libvlc_media_list_t *p_ml );
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LIBVLC_DEPRECATED int
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libvlc_media_list_add_file_content( libvlc_media_list_t * p_ml,
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const char * psz_uri );
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/**
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* Associate media instance with this media list instance.
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* If another media instance was present it will be released.
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* The libvlc_media_list_lock should NOT be held upon entering this function.
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*
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* \param p_ml a media list instance
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* \param p_md media instance to add
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*/
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LIBVLC_API void
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libvlc_media_list_set_media( libvlc_media_list_t *p_ml, libvlc_media_t *p_md );
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/**
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* Get media instance from this media list instance. This action will increase
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* the refcount on the media instance.
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* The libvlc_media_list_lock should NOT be held upon entering this function.
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*
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* \param p_ml a media list instance
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* \return media instance
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*/
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LIBVLC_API libvlc_media_t *
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libvlc_media_list_media( libvlc_media_list_t *p_ml );
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/**
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* Add media instance to media list
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* The libvlc_media_list_lock should be held upon entering this function.
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*
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* \param p_ml a media list instance
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* \param p_md a media instance
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* \return 0 on success, -1 if the media list is read-only
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*/
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LIBVLC_API int
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libvlc_media_list_add_media( libvlc_media_list_t *p_ml, libvlc_media_t *p_md );
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/**
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* Insert media instance in media list on a position
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* The libvlc_media_list_lock should be held upon entering this function.
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*
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* \param p_ml a media list instance
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* \param p_md a media instance
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* \param i_pos position in array where to insert
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* \return 0 on success, -1 if the media list is read-only
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*/
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LIBVLC_API int
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libvlc_media_list_insert_media( libvlc_media_list_t *p_ml,
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libvlc_media_t *p_md, int i_pos );
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/**
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* Remove media instance from media list on a position
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* The libvlc_media_list_lock should be held upon entering this function.
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*
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* \param p_ml a media list instance
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* \param i_pos position in array where to insert
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* \return 0 on success, -1 if the list is read-only or the item was not found
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*/
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LIBVLC_API int
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libvlc_media_list_remove_index( libvlc_media_list_t *p_ml, int i_pos );
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/**
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* Get count on media list items
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* The libvlc_media_list_lock should be held upon entering this function.
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*
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* \param p_ml a media list instance
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* \return number of items in media list
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*/
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LIBVLC_API int
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libvlc_media_list_count( libvlc_media_list_t *p_ml );
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/**
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* List media instance in media list at a position
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* The libvlc_media_list_lock should be held upon entering this function.
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*
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* \param p_ml a media list instance
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* \param i_pos position in array where to insert
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* \return media instance at position i_pos, or NULL if not found.
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* In case of success, libvlc_media_retain() is called to increase the refcount
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* on the media.
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*/
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LIBVLC_API libvlc_media_t *
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libvlc_media_list_item_at_index( libvlc_media_list_t *p_ml, int i_pos );
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/**
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* Find index position of List media instance in media list.
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* Warning: the function will return the first matched position.
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* The libvlc_media_list_lock should be held upon entering this function.
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*
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* \param p_ml a media list instance
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* \param p_md media instance
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* \return position of media instance or -1 if media not found
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*/
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LIBVLC_API int
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libvlc_media_list_index_of_item( libvlc_media_list_t *p_ml,
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libvlc_media_t *p_md );
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/**
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* This indicates if this media list is read-only from a user point of view
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*
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* \param p_ml media list instance
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* \return 1 on readonly, 0 on readwrite
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*
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* \libvlc_return_bool
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*/
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LIBVLC_API int
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libvlc_media_list_is_readonly( libvlc_media_list_t * p_ml );
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/**
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* Get lock on media list items
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*
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* \param p_ml a media list instance
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*/
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LIBVLC_API void
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libvlc_media_list_lock( libvlc_media_list_t *p_ml );
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/**
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* Release lock on media list items
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* The libvlc_media_list_lock should be held upon entering this function.
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*
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* \param p_ml a media list instance
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*/
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LIBVLC_API void
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libvlc_media_list_unlock( libvlc_media_list_t *p_ml );
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/**
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* Get libvlc_event_manager from this media list instance.
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* The p_event_manager is immutable, so you don't have to hold the lock
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*
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* \param p_ml a media list instance
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* \return libvlc_event_manager
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*/
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LIBVLC_API libvlc_event_manager_t *
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libvlc_media_list_event_manager( libvlc_media_list_t *p_ml );
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/** @} media_list */
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# ifdef __cplusplus
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}
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# endif
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#endif /* _LIBVLC_MEDIA_LIST_H */
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