stream_filter.c
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:3k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * stream_filter.c
- *****************************************************************************
- * Copyright (C) 2008 Laurent Aimar
- * $Id: 99060f89c74e0480bfb737e54820b853e74e1b82 $
- *
- * Author: 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 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <vlc_stream.h>
- #include <libvlc.h>
- #include "stream.h"
- static void StreamDelete( stream_t * );
- stream_t *stream_FilterNew( stream_t *p_source,
- const char *psz_stream_filter )
- {
- stream_t *s;
- s = stream_CommonNew( VLC_OBJECT( p_source ) );
- if( s == NULL )
- return NULL;
- /* */
- s->psz_path = strdup( p_source->psz_path );
- if( !s->psz_path )
- {
- stream_CommonDelete( s );
- return NULL;
- }
- s->p_source = p_source;
- /* */
- vlc_object_attach( s, p_source );
- s->p_module = module_need( s, "stream_filter", psz_stream_filter, true );
- if( !s->p_module )
- {
- stream_CommonDelete( s );
- return NULL;
- }
- s->pf_destroy = StreamDelete;
- return s;
- }
- stream_t *stream_FilterChainNew( stream_t *p_source,
- const char *psz_chain,
- bool b_record )
- {
- /* Add auto stream filter */
- for( ;; )
- {
- stream_t *p_filter = stream_FilterNew( p_source, NULL );
- if( !p_filter )
- break;
- msg_Dbg( p_filter, "Inserted a stream filter" );
- p_source = p_filter;
- }
- /* Add user stream filter */
- char *psz_tmp = psz_chain ? strdup( psz_chain ) : NULL;
- char *psz = psz_tmp;
- while( psz && *psz )
- {
- stream_t *p_filter;
- char *psz_end = strchr( psz, ':' );
- if( psz_end )
- *psz_end++ = ' ';
- p_filter = stream_FilterNew( p_source, psz );
- if( p_filter )
- p_source = p_filter;
- else
- msg_Warn( p_source, "failed to insert stream filter %s", psz );
- psz = psz_end;
- }
- free( psz_tmp );
- /* Add record filter if usefull */
- if( b_record )
- {
- stream_t *p_filter = stream_FilterNew( p_source,
- "stream_filter_record" );
- if( p_filter )
- p_source = p_filter;
- }
- return p_source;
- }
- static void StreamDelete( stream_t *s )
- {
- module_unneed( s, s->p_module );
- if( s->p_source )
- stream_Delete( s->p_source );
- stream_CommonDelete( s );
- }