dummy.c
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上传日期:2009-03-27
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- /*****************************************************************************
- * dummy.c: dummy muxer module for vlc
- *****************************************************************************
- * Copyright (C) 2001, 2002 VideoLAN
- * $Id: dummy.c 8161 2004-07-10 17:20:11Z fenrir $
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- * Eric Petit <titer@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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #include <stdlib.h>
- #include <vlc/vlc.h>
- #include <vlc/sout.h>
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- static int Open ( vlc_object_t * );
- static void Close ( vlc_object_t * );
- vlc_module_begin();
- set_description( _("Dummy/Raw muxer") );
- set_capability( "sout mux", 5 );
- add_shortcut( "dummy" );
- add_shortcut( "raw" );
- add_shortcut( "es" );
- set_callbacks( Open, Close );
- vlc_module_end();
- /*****************************************************************************
- * Exported prototypes
- *****************************************************************************/
- static int Control( sout_mux_t *, int, va_list );
- static int AddStream( sout_mux_t *, sout_input_t * );
- static int DelStream( sout_mux_t *, sout_input_t * );
- static int Mux ( sout_mux_t * );
- struct sout_mux_sys_t
- {
- /* Some streams have special initialization data, we'll output this
- * data as an header in the stream. */
- vlc_bool_t b_header;
- };
- /*****************************************************************************
- * Open:
- *****************************************************************************/
- static int Open( vlc_object_t *p_this )
- {
- sout_mux_t *p_mux = (sout_mux_t*)p_this;
- sout_mux_sys_t *p_sys;
- msg_Dbg( p_mux, "Dummy/Raw muxer opened" );
- msg_Info( p_mux, "Open" );
- p_mux->pf_control = Control;
- p_mux->pf_addstream = AddStream;
- p_mux->pf_delstream = DelStream;
- p_mux->pf_mux = Mux;
- p_mux->p_sys = p_sys = malloc( sizeof( sout_mux_sys_t ) );
- p_sys->b_header = VLC_TRUE;
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Close:
- *****************************************************************************/
- static void Close( vlc_object_t * p_this )
- {
- sout_mux_t *p_mux = (sout_mux_t*)p_this;
- sout_mux_sys_t *p_sys = p_mux->p_sys;
- msg_Dbg( p_mux, "Dummy/Raw muxer closed" );
- free( p_sys );
- }
- static int Control( sout_mux_t *p_mux, int i_query, va_list args )
- {
- vlc_bool_t *pb_bool;
- switch( i_query )
- {
- case MUX_CAN_ADD_STREAM_WHILE_MUXING:
- pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
- *pb_bool = VLC_TRUE;
- return VLC_SUCCESS;
- case MUX_GET_ADD_STREAM_WAIT:
- pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
- *pb_bool = VLC_FALSE;
- return VLC_SUCCESS;
- case MUX_GET_MIME: /* Unknown */
- default:
- return VLC_EGENERIC;
- }
- }
- static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
- {
- msg_Dbg( p_mux, "adding input" );
- return VLC_SUCCESS;
- }
- static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
- {
- msg_Dbg( p_mux, "removing input" );
- return VLC_SUCCESS;
- }
- static int Mux( sout_mux_t *p_mux )
- {
- sout_mux_sys_t *p_sys = p_mux->p_sys;
- int i;
- for( i = 0; i < p_mux->i_nb_inputs; i++ )
- {
- block_fifo_t *p_fifo;
- int i_count;
- if( p_sys->b_header && p_mux->pp_inputs[i]->p_fmt->i_extra )
- {
- /* Write header data */
- block_t *p_data;
- p_data = block_New( p_mux, p_mux->pp_inputs[i]->p_fmt->i_extra );
- memcpy( p_data->p_buffer, p_mux->pp_inputs[i]->p_fmt->p_extra,
- p_mux->pp_inputs[i]->p_fmt->i_extra );
- msg_Dbg( p_mux, "writing header data" );
- sout_AccessOutWrite( p_mux->p_access, p_data );
- }
- p_fifo = p_mux->pp_inputs[i]->p_fifo;
- i_count = p_fifo->i_depth;
- while( i_count > 0 )
- {
- block_t *p_data = block_FifoGet( p_fifo );
- sout_AccessOutWrite( p_mux->p_access, p_data );
- i_count--;
- }
- }
- p_sys->b_header = VLC_FALSE;
- return VLC_SUCCESS;
- }