autodel.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:6k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * autodel.c: monitor mux inputs and automatically add/delete streams
- *****************************************************************************
- * Copyright (C) 2006 the VideoLAN team
- * $Id: a04eff738f12b8ea597ec77751c55af4d4a0d0b3 $
- *
- * Authors: Christophe Massiot <massiot@via.ecp.fr>
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <vlc_plugin.h>
- #include <vlc_sout.h>
- #include <vlc_block.h>
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- static int Open ( vlc_object_t * );
- static void Close ( vlc_object_t * );
- #define SOUT_CFG_PREFIX "sout-autodel-"
- vlc_module_begin ()
- set_shortname( N_("Autodel"))
- set_description( N_("Automatically add/delete input streams"))
- set_capability( "sout stream", 50 )
- add_shortcut( "autodel" )
- set_callbacks( Open, Close )
- vlc_module_end ()
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
- static int Del ( sout_stream_t *, sout_stream_id_t * );
- static int Send ( sout_stream_t *, sout_stream_id_t *, block_t * );
- struct sout_stream_id_t
- {
- sout_stream_id_t *id;
- es_format_t fmt;
- mtime_t i_last;
- bool b_error;
- };
- struct sout_stream_sys_t
- {
- sout_stream_t *p_out;
- sout_stream_id_t **pp_es;
- int i_es_num;
- };
- /*****************************************************************************
- * Open:
- *****************************************************************************/
- static int Open( vlc_object_t *p_this )
- {
- sout_stream_t *p_stream = (sout_stream_t*)p_this;
- sout_stream_sys_t *p_sys;
- p_sys = malloc( sizeof( sout_stream_sys_t ) );
- p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
- if( !p_sys->p_out )
- {
- msg_Err( p_stream, "cannot create chain" );
- free( p_sys );
- return VLC_EGENERIC;
- }
- p_sys->pp_es = NULL;
- p_sys->i_es_num = 0;
- p_stream->pf_add = Add;
- p_stream->pf_del = Del;
- p_stream->pf_send = Send;
- p_stream->p_sys = p_sys;
- /* update p_sout->i_out_pace_nocontrol */
- p_stream->p_sout->i_out_pace_nocontrol++;
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Close:
- *****************************************************************************/
- static void Close( vlc_object_t * p_this )
- {
- sout_stream_t *p_stream = (sout_stream_t*)p_this;
- sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
- sout_StreamDelete( p_sys->p_out );
- p_stream->p_sout->i_out_pace_nocontrol--;
- free( p_sys );
- }
- static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
- {
- sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
- sout_stream_id_t *p_es = malloc( sizeof(sout_stream_id_t) );
- p_es->fmt = *p_fmt;
- p_es->id = NULL;
- p_es->i_last = 0;
- p_es->b_error = false;
- TAB_APPEND( p_sys->i_es_num, p_sys->pp_es, p_es );
- return p_es;
- }
- static int Del( sout_stream_t *p_stream, sout_stream_id_t *p_es )
- {
- sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
- sout_stream_id_t *id = p_es->id;
- TAB_REMOVE( p_sys->i_es_num, p_sys->pp_es, p_es );
- free( p_es );
- if ( id != NULL )
- return p_sys->p_out->pf_del( p_sys->p_out, id );
- else
- return VLC_SUCCESS;
- }
- static int Send( sout_stream_t *p_stream, sout_stream_id_t *p_es,
- block_t *p_buffer )
- {
- sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
- mtime_t i_current = mdate();
- int i;
- p_es->i_last = p_buffer->i_dts;
- if ( p_es->id == NULL && p_es->b_error != true )
- {
- p_es->id = p_sys->p_out->pf_add( p_sys->p_out, &p_es->fmt );
- if ( p_es->id == NULL )
- {
- p_es->b_error = true;
- msg_Err( p_stream, "couldn't create chain for id %d",
- p_es->fmt.i_id );
- }
- }
- if ( p_es->b_error != true )
- p_sys->p_out->pf_send( p_sys->p_out, p_es->id, p_buffer );
- else
- block_ChainRelease( p_buffer );
- for ( i = 0; i < p_sys->i_es_num; i++ )
- {
- if ( p_sys->pp_es[i]->id != NULL
- && (p_sys->pp_es[i]->fmt.i_cat == VIDEO_ES
- || p_sys->pp_es[i]->fmt.i_cat == AUDIO_ES)
- && p_sys->pp_es[i]->i_last < i_current )
- {
- p_sys->p_out->pf_del( p_sys->p_out, p_sys->pp_es[i]->id );
- p_sys->pp_es[i]->id = NULL;
- }
- }
- return VLC_SUCCESS;
- }