standard.c
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上传日期:2009-03-27
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- /*****************************************************************************
- * standard.c: standard stream output module
- *****************************************************************************
- * Copyright (C) 2003-2004 VideoLAN
- * $Id: standard.c 9201 2004-11-06 16:51:46Z yoann $
- *
- * Authors: Laurent Aimar <fenrir@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
- *****************************************************************************/
- #include <stdlib.h>
- #include <string.h>
- #include <vlc/vlc.h>
- #include <vlc/sout.h>
- #ifdef HAVE_UNISTD_H
- # include <unistd.h>
- #endif
- #include "announce.h"
- #include "network.h"
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- #define ACCESS_TEXT N_("Output access method")
- #define ACCESS_LONGTEXT N_(
- "Allows you to specify the output access method used for the streaming "
- "output." )
- #define MUX_TEXT N_("Output muxer")
- #define MUX_LONGTEXT N_(
- "Allows you to specify the output muxer method used for the streaming "
- "output." )
- #define URL_TEXT N_("Output URL")
- #define URL_LONGTEXT N_(
- "Allows you to specify the output URL used for the streaming output." )
- #define NAME_TEXT N_("Session name")
- #define NAME_LONGTEXT N_(
- "Name of the session that will be announced with SAP or SLP" )
- #define GROUP_TEXT N_("Session groupname")
- #define GROUP_LONGTEXT N_(
- "Name of the group that will be announced for the session" )
- #define SAP_TEXT N_("SAP announcing")
- #define SAP_LONGTEXT N_("Announce this session with SAP")
- #define SAPv6_TEXT N_("SAP IPv6 announcing")
- #define SAPv6_LONGTEXT N_("Use IPv6 to announce this session with SAP")
- #define SLP_TEXT N_("SLP announcing")
- #define SLP_LONGTEXT N_("Announce this session with SLP")
- static int Open ( vlc_object_t * );
- static void Close ( vlc_object_t * );
- #define SOUT_CFG_PREFIX "sout-standard-"
- vlc_module_begin();
- set_description( _("Standard stream output") );
- set_capability( "sout stream", 50 );
- add_shortcut( "standard" );
- add_shortcut( "std" );
- add_string( SOUT_CFG_PREFIX "access", "", NULL, ACCESS_TEXT,
- ACCESS_LONGTEXT, VLC_FALSE );
- add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
- MUX_LONGTEXT, VLC_FALSE );
- add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
- URL_LONGTEXT, VLC_FALSE );
- add_bool( SOUT_CFG_PREFIX "sap", 0, NULL, SAP_TEXT, SAP_LONGTEXT, VLC_TRUE );
- add_string( SOUT_CFG_PREFIX "name", "", NULL, NAME_TEXT, NAME_LONGTEXT,
- VLC_TRUE );
- add_string( SOUT_CFG_PREFIX "group", "", NULL, GROUP_TEXT, GROUP_LONGTEXT,
- VLC_TRUE );
- add_bool( SOUT_CFG_PREFIX "sap-ipv6", 0, NULL, SAPv6_TEXT, SAPv6_LONGTEXT,
- VLC_TRUE );
- add_bool( SOUT_CFG_PREFIX "slp", 0, NULL, SLP_TEXT, SLP_LONGTEXT, VLC_TRUE );
- set_callbacks( Open, Close );
- vlc_module_end();
- /*****************************************************************************
- * Exported prototypes
- *****************************************************************************/
- static const char *ppsz_sout_options[] = {
- "access", "mux", "url",
- "sap", "name", "sap-ipv6", "group",
- "slp", NULL
- };
- #define DEFAULT_IPV6_SCOPE '8'
- #define DEFAULT_PORT 1234
- 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_sys_t
- {
- sout_mux_t *p_mux;
- slp_session_t *p_slp;
- session_descriptor_t *p_session;
- };
- /*****************************************************************************
- * Open:
- *****************************************************************************/
- static int Open( vlc_object_t *p_this )
- {
- sout_stream_t *p_stream = (sout_stream_t*)p_this;
- sout_instance_t *p_sout = p_stream->p_sout;
- slp_session_t *p_slp = NULL;
- char *psz_mux;
- char *psz_access;
- char *psz_url;
- vlc_value_t val;
- sout_access_out_t *p_access;
- sout_mux_t *p_mux;
- char *psz_mux_byext = NULL;
- sout_CfgParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
- p_stream->p_cfg );
- var_Get( p_stream, SOUT_CFG_PREFIX "access", &val );
- psz_access = *val.psz_string ? val.psz_string : NULL;
- if( val.psz_string && !*val.psz_string ) free( val.psz_string );
- var_Get( p_stream, SOUT_CFG_PREFIX "mux", &val );
- psz_mux = *val.psz_string ? val.psz_string : NULL;
- if( val.psz_string && !*val.psz_string ) free( val.psz_string );
- var_Get( p_stream, SOUT_CFG_PREFIX "url", &val );
- psz_url = *val.psz_string ? val.psz_string : NULL;
- if( val.psz_string && !*val.psz_string ) free( val.psz_string );
- p_stream->p_sys = malloc( sizeof( sout_stream_sys_t) );
- p_stream->p_sys->p_session = NULL;
- msg_Dbg( p_this, "creating `%s/%s://%s'", psz_access, psz_mux, psz_url );
- /* ext -> muxer name */
- if( psz_url && strrchr( psz_url, '.' ) )
- {
- /* by extention */
- static struct { char *ext; char *mux; } exttomux[] =
- {
- { "avi", "avi" },
- { "ogg", "ogg" },
- { "ogm", "ogg" },
- { "mp4", "mp4" },
- { "mov", "mov" },
- { "moov","mov" },
- { "asf", "asf" },
- { "wma", "asf" },
- { "wmv", "asf" },
- { "trp", "ts" },
- { "ts", "ts" },
- { "mpg", "ps" },
- { "mpeg","ps" },
- { "ps", "ps" },
- { "mpeg1","mpeg1" },
- { NULL, NULL }
- };
- char *psz_ext = strrchr( psz_url, '.' ) + 1;
- int i;
- msg_Dbg( p_this, "extention is %s", psz_ext );
- for( i = 0; exttomux[i].ext != NULL; i++ )
- {
- if( !strcasecmp( psz_ext, exttomux[i].ext ) )
- {
- psz_mux_byext = exttomux[i].mux;
- break;
- }
- }
- msg_Dbg( p_this, "extention -> mux=%s", psz_mux_byext );
- }
- /* We fix access/mux to valid couple */
- if( !psz_access && !psz_mux )
- {
- if( psz_mux_byext )
- {
- msg_Warn( p_stream,
- "no access _and_ no muxer, extention gives file/%s",
- psz_mux_byext );
- psz_access = strdup("file");
- psz_mux = strdup(psz_mux_byext);
- }
- else
- {
- msg_Err( p_stream, "no access _and_ no muxer (fatal error)" );
- return VLC_EGENERIC;
- }
- }
- if( psz_access && !psz_mux )
- {
- /* access given, no mux */
- if( !strncmp( psz_access, "mmsh", 4 ) )
- {
- psz_mux = strdup("asfh");
- }
- else if( !strncmp( psz_access, "udp", 3 ) )
- {
- psz_mux = strdup("ts");
- }
- else if( psz_mux_byext )
- {
- psz_mux = strdup(psz_mux_byext);
- }
- else
- {
- msg_Err( p_stream, "no mux specified or found by extention" );
- return VLC_EGENERIC;
- }
- }
- else if( psz_mux && !psz_access )
- {
- /* mux given, no access */
- if( !strncmp( psz_mux, "asfh", 4 ) )
- {
- psz_access = strdup("mmsh");
- }
- else
- {
- /* default file */
- psz_access = strdup("file");
- }
- }
- /* fix or warm of incompatible couple */
- if( psz_mux && psz_access )
- {
- if( !strncmp( psz_access, "mmsh", 4 ) &&
- strncmp( psz_mux, "asfh", 4 ) )
- {
- char *p = strchr( psz_mux,'{' );
- msg_Warn( p_stream, "fixing to mmsh/asfh" );
- if( p )
- {
- /* -> a little memleak but ... */
- psz_mux = malloc( strlen( "asfh" ) + strlen( p ) + 1);
- sprintf( psz_mux, "asfh%s", p );
- }
- else
- {
- psz_mux = strdup("asfh");
- }
- }
- else if( ( !strncmp( psz_access, "rtp", 3 ) ||
- !strncmp( psz_access, "udp", 3 ) ) &&
- strncmp( psz_mux, "ts", 2 ) )
- {
- msg_Err( p_stream, "for now udp and rtp are only valid with TS" );
- }
- else if( strncmp( psz_access, "file", 4 ) &&
- ( !strncmp( psz_mux, "mov", 3 ) ||
- !strncmp( psz_mux, "mp4", 3 ) ) )
- {
- msg_Err( p_stream, "mov and mp4 work only with file output" );
- }
- }
- msg_Dbg( p_this, "using `%s/%s://%s'", psz_access, psz_mux, psz_url );
- /* *** find and open appropriate access module *** */
- p_access = sout_AccessOutNew( p_sout, psz_access, psz_url );
- if( p_access == NULL )
- {
- msg_Err( p_stream, "no suitable sout access module for `%s/%s://%s'",
- psz_access, psz_mux, psz_url );
- if( psz_access ) free( psz_access );
- if( psz_mux ) free( psz_mux );
- return VLC_EGENERIC;
- }
- msg_Dbg( p_stream, "access opened" );
- /* *** find and open appropriate mux module *** */
- p_mux = sout_MuxNew( p_sout, psz_mux, p_access );
- if( p_mux == NULL )
- {
- msg_Err( p_stream, "no suitable sout mux module for `%s/%s://%s'",
- psz_access, psz_mux, psz_url );
- sout_AccessOutDelete( p_access );
- if( psz_access ) free( psz_access );
- if( psz_mux ) free( psz_mux );
- return VLC_EGENERIC;
- }
- msg_Dbg( p_stream, "mux opened" );
- /* *** Create the SAP Session structure *** */
- var_Get( p_stream, SOUT_CFG_PREFIX "sap", &val );
- if( val.b_bool &&
- ( strstr( psz_access, "udp" ) || strstr( psz_access , "rtp" ) ) )
- {
- session_descriptor_t *p_session = sout_AnnounceSessionCreate();
- announce_method_t *p_method =
- sout_AnnounceMethodCreate( METHOD_TYPE_SAP );
- vlc_url_t url;
- var_Get( p_stream, SOUT_CFG_PREFIX "name", &val );
- if( *val.psz_string )
- {
- p_session->psz_name = strdup( val.psz_string );
- }
- else
- {
- p_session->psz_name = strdup( psz_url );
- }
- free( val.psz_string );
- var_Get( p_stream, SOUT_CFG_PREFIX "group", &val );
- if( *val.psz_string )
- {
- p_session->psz_group = strdup( val.psz_string );
- }
- free( val.psz_string );
- var_Get( p_stream, SOUT_CFG_PREFIX "sap-ipv6", &val );
- p_method->i_ip_version = val.b_bool ? 6 : 4;
- /* Now, parse the URL to extract host and port */
- vlc_UrlParse( &url, psz_url , 0);
- if( url.psz_host )
- {
- if( url.i_port == 0 ) url.i_port = DEFAULT_PORT;
- p_session->psz_uri = url.psz_host;
- p_session->i_port = url.i_port;
- p_session->psz_sdp = NULL;
- p_session->i_ttl = config_GetInt( p_sout, "ttl" );
- p_session->i_payload = 33;
- msg_Info( p_this, "SAP Enabled");
- sout_AnnounceRegister( p_sout, p_session, p_method );
- /* FIXME: Free p_method */
- p_stream->p_sys->p_session = p_session;
- }
- vlc_UrlClean( &url );
- if( p_method->psz_address) free( p_method->psz_address );
- free( p_method );
- }
- /* *** Register with slp *** */
- #ifdef HAVE_SLP_H
- var_Get( p_stream, SOUT_CFG_PREFIX "slp", &val );
- if( val.b_bool &&
- ( strstr( psz_access, "udp" ) || strstr( psz_access , "rtp" ) ) )
- {
- int i_ret;
- msg_Info( p_this, "SLP Enabled");
- var_Get( p_stream, SOUT_CFG_PREFIX "name", &val );
- if( *val.psz_string )
- {
- i_ret = sout_SLPReg( p_sout, psz_url, val.psz_string );
- }
- else
- {
- i_ret = sout_SLPReg( p_sout, psz_url, psz_url );
- }
- if( i_ret )
- {
- msg_Warn( p_sout, "SLP Registering failed");
- }
- else
- {
- p_slp = malloc(sizeof(slp_session_t));
- p_slp->psz_url = strdup( psz_url );
- p_slp->psz_name =
- strdup( *val.psz_string ? val.psz_string : psz_url );
- }
- free( val.psz_string );
- }
- #endif
- p_stream->pf_add = Add;
- p_stream->pf_del = Del;
- p_stream->pf_send = Send;
- p_stream->p_sys->p_mux = p_mux;
- p_stream->p_sys->p_slp = p_slp;
- if( psz_access ) free( psz_access );
- if( psz_mux ) free( psz_mux );
- if( psz_url ) free( psz_url );
- 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 = p_stream->p_sys;
- sout_access_out_t *p_access = p_sys->p_mux->p_access;
- if( p_sys->p_session != NULL )
- {
- sout_AnnounceUnRegister( p_stream->p_sout, p_sys->p_session );
- sout_AnnounceSessionDestroy( p_sys->p_session );
- }
- #ifdef HAVE_SLP_H
- if( p_sys->p_slp )
- {
- sout_SLPDereg( (sout_instance_t *)p_this,
- p_sys->p_slp->psz_url,
- p_sys->p_slp->psz_name);
- free( p_sys->p_slp);
- }
- #endif
- sout_MuxDelete( p_sys->p_mux );
- sout_AccessOutDelete( p_access );
- free( p_sys );
- }
- struct sout_stream_id_t
- {
- sout_input_t *p_input;
- };
- static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
- {
- sout_stream_sys_t *p_sys = p_stream->p_sys;
- sout_stream_id_t *id;
- id = malloc( sizeof( sout_stream_id_t ) );
- if( ( id->p_input = sout_MuxAddStream( p_sys->p_mux, p_fmt ) ) == NULL )
- {
- free( id );
- return NULL;
- }
- return id;
- }
- static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
- {
- sout_stream_sys_t *p_sys = p_stream->p_sys;
- sout_MuxDeleteStream( p_sys->p_mux, id->p_input );
- free( id );
- return VLC_SUCCESS;
- }
- static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
- block_t *p_buffer )
- {
- sout_stream_sys_t *p_sys = p_stream->p_sys;
- sout_MuxSendBuffer( p_sys->p_mux, id->p_input, p_buffer );
- return VLC_SUCCESS;
- }