demux.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:4k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * demux.c: stats demux plugin
- *****************************************************************************
- * Copyright (C) 2001-2008 the VideoLAN team
- *
- * Authors: Samuel Hocevar <sam@zoy.org>
- * Pierre d'Herbemont <pdherbemont@videolan.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.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <vlc_interface.h>
- #include <vlc_access.h>
- #include <vlc_demux.h>
- #include "stats.h"
- /*****************************************************************************
- * Demux
- *****************************************************************************/
- struct demux_sys_t
- {
- es_format_t fmt;
- es_out_id_t *p_es;
- date_t pts;
- };
- static int Demux( demux_t * );
- static int DemuxControl( demux_t *, int, va_list );
- /*****************************************************************************
- * OpenDemux
- *****************************************************************************/
- int OpenDemux ( vlc_object_t *p_this )
- {
- demux_t *p_demux = (demux_t*)p_this;
- demux_sys_t *p_sys;
- p_demux->p_sys = NULL;
- /* Only when selected */
- if( *p_demux->psz_demux == ' ' )
- return VLC_EGENERIC;
- msg_Dbg( p_demux, "Init Stat demux" );
- p_demux->pf_demux = Demux;
- p_demux->pf_control = DemuxControl;
- p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
- if( !p_demux->p_sys )
- return VLC_ENOMEM;
- date_Init( &p_sys->pts, 1, 1 );
- date_Set( &p_sys->pts, 1 );
- es_format_Init( &p_sys->fmt, VIDEO_ES, VLC_FOURCC('s','t','a','t') );
- p_sys->fmt.video.i_width = 720;
- p_sys->fmt.video.i_height= 480;
- p_sys->p_es = es_out_Add( p_demux->out, &p_sys->fmt );
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * CloseDemux
- *****************************************************************************/
- void CloseDemux ( vlc_object_t *p_this )
- {
- demux_t *p_demux = (demux_t*)p_this;
- msg_Dbg( p_demux, "Closing Stat demux" );
- free( p_demux->p_sys );
- }
- /*****************************************************************************
- * Demux
- *****************************************************************************/
- static int Demux( demux_t *p_demux )
- {
- demux_sys_t *p_sys = p_demux->p_sys;
- block_t * p_block = stream_Block( p_demux->s, kBufferSize );
- if( !p_block ) return 1;
- p_block->i_dts = p_block->i_pts =
- date_Increment( &p_sys->pts, kBufferSize );
- msg_Dbg( p_demux, "demux got %d ms offset", (int)(mdate() - *(mtime_t *)p_block->p_buffer) / 1000 );
- //es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
- es_out_Send( p_demux->out, p_sys->p_es, p_block );
- return 1;
- }
- static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
- {
- return demux_vaControlHelper( p_demux->s,
- 0, 0, 0, 1,
- i_query, args );
- }