standard.c
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上传日期:2020-07-06
资源大小:29949k
文件大小:17k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * standard.c: standard stream output module
- *****************************************************************************
- * Copyright (C) 2003-2007 the VideoLAN team
- * $Id: 6f43cc673b7a53bc5dc0b4039223adc0bf996321 $
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #ifndef _WIN32_WINNT
- # define _WIN32_WINNT 0x0500
- #endif
- #include <vlc_common.h>
- #include <vlc_plugin.h>
- #include <vlc_sout.h>
- #include <vlc_network.h>
- #include "vlc_url.h"
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- #define ACCESS_TEXT N_("Output access method")
- #define ACCESS_LONGTEXT N_(
- "Output method to use for the stream." )
- #define MUX_TEXT N_("Output muxer")
- #define MUX_LONGTEXT N_(
- "Muxer to use for the stream." )
- #define DEST_TEXT N_("Output destination")
- #define DEST_LONGTEXT N_(
- "Destination (URL) to use for the stream. Overrides path and bind parameters" )
- #define BIND_TEXT N_("address to bind to (helper setting for dst)")
- #define BIND_LONGTEXT N_(
- "address:port to bind vlc to listening incoming streams "
- "helper setting for dst,dst=bind+'/'+path. dst-parameter overrides this" )
- #define PATH_TEXT N_("filename for stream (helper setting for dst)")
- #define PATH_LONGTEXT N_(
- "Filename for stream "
- "helper setting for dst, dst=bind+'/'+path, dst-parameter overrides this" )
- #define NAME_TEXT N_("Session name")
- #define NAME_LONGTEXT N_(
- "This is the name of the session that will be announced in the SDP "
- "(Session Descriptor)." )
- #define GROUP_TEXT N_("Session groupname")
- #define GROUP_LONGTEXT N_(
- "This allows you to specify a group for the session, that will be announced "
- "if you choose to use SAP." )
- #define DESC_TEXT N_("Session description")
- #define DESC_LONGTEXT N_(
- "This allows you to give a short description with details about the stream, "
- "that will be announced in the SDP (Session Descriptor)." )
- #define URL_TEXT N_("Session URL")
- #define URL_LONGTEXT N_(
- "This allows you to give an URL with more details about the stream "
- "(often the website of the streaming organization), that will "
- "be announced in the SDP (Session Descriptor)." )
- #define EMAIL_TEXT N_("Session email")
- #define EMAIL_LONGTEXT N_(
- "This allows you to give a contact mail address for the stream, that will "
- "be announced in the SDP (Session Descriptor)." )
- #define PHONE_TEXT N_("Session phone number")
- #define PHONE_LONGTEXT N_(
- "This allows you to give a contact telephone number for the stream, that will "
- "be announced in the SDP (Session Descriptor)." )
- #define SAP_TEXT N_("SAP announcing")
- #define SAP_LONGTEXT N_("Announce this session with SAP.")
- static int Open ( vlc_object_t * );
- static void Close ( vlc_object_t * );
- #define SOUT_CFG_PREFIX "sout-standard-"
- vlc_module_begin ()
- set_shortname( N_("Standard"))
- set_description( N_("Standard stream output") )
- set_capability( "sout stream", 50 )
- add_shortcut( "standard" )
- add_shortcut( "std" )
- set_category( CAT_SOUT )
- set_subcategory( SUBCAT_SOUT_STREAM )
- add_string( SOUT_CFG_PREFIX "access", "", NULL, ACCESS_TEXT,
- ACCESS_LONGTEXT, false )
- add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
- MUX_LONGTEXT, false )
- add_string( SOUT_CFG_PREFIX "dst", "", NULL, DEST_TEXT,
- DEST_LONGTEXT, false )
- add_string( SOUT_CFG_PREFIX "bind", "", NULL, BIND_TEXT,
- BIND_LONGTEXT, false )
- add_string( SOUT_CFG_PREFIX "path", "", NULL, PATH_TEXT,
- PATH_LONGTEXT, false )
- add_bool( SOUT_CFG_PREFIX "sap", false, NULL, SAP_TEXT, SAP_LONGTEXT,
- true )
- add_string( SOUT_CFG_PREFIX "name", "", NULL, NAME_TEXT, NAME_LONGTEXT,
- true )
- add_string( SOUT_CFG_PREFIX "group", "", NULL, GROUP_TEXT, GROUP_LONGTEXT,
- true )
- add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT, DESC_LONGTEXT,
- true )
- add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT, URL_LONGTEXT,
- true )
- add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT, EMAIL_LONGTEXT,
- true )
- add_string( SOUT_CFG_PREFIX "phone", "", NULL, PHONE_TEXT, PHONE_LONGTEXT,
- true )
- add_obsolete_bool( SOUT_CFG_PREFIX "sap-ipv6" )
- set_callbacks( Open, Close )
- vlc_module_end ()
- /*****************************************************************************
- * Exported prototypes
- *****************************************************************************/
- static const char *const ppsz_sout_options[] = {
- "access", "mux", "url", "dst",
- "sap", "name", "group", "description", "url", "email", "phone",
- "bind", "path", NULL
- };
- #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;
- 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;
- sout_stream_sys_t *p_sys;
- char *psz_mux;
- char *psz_access;
- char *psz_url=NULL;
- char *psz_bind;
- char *psz_path;
- vlc_value_t val;
- sout_access_out_t *p_access;
- sout_mux_t *p_mux;
- const char *psz_mux_byext = NULL;
- config_ChainParse( 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 ) 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 ) free( val.psz_string );
- var_Get( p_stream, SOUT_CFG_PREFIX "bind", &val );
- psz_bind = *val.psz_string ? val.psz_string : NULL;
- if( !*val.psz_string ) free( val.psz_string);
- var_Get( p_stream, SOUT_CFG_PREFIX "path", &val );
- psz_path = *val.psz_string ? val.psz_string : NULL;
- if( !*val.psz_string ) free( val.psz_string);
- if( psz_bind ) psz_url = psz_bind;
- if( psz_url && psz_path )
- {
- if( asprintf( &psz_url,"%s/%s",psz_url,psz_path ) == -1 )
- psz_url = NULL;
- free( psz_path );
- }
- var_Get( p_stream, SOUT_CFG_PREFIX "dst", &val );
- if( *val.psz_string )
- {
- free( psz_url);
- psz_url = val.psz_string;
- }
- else
- free( val.psz_string );
- p_sys = p_stream->p_sys = malloc( sizeof( sout_stream_sys_t) );
- if( !p_sys )
- {
- free( psz_url );
- return VLC_ENOMEM;
- }
- 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 extension */
- static struct { const char ext[6]; const char mux[32]; } 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" },
- { "wav", "wav" },
- { "flv", "ffmpeg{mux=flv}" },
- { "mkv", "ffmpeg{mux=matroska}"},
- { "", "" }
- };
- const char *psz_ext = strrchr( psz_url, '.' ) + 1;
- int i;
- msg_Dbg( p_this, "extension is %s", psz_ext );
- for( i = 0; exttomux[i].ext[0]; i++ )
- {
- if( !strcasecmp( psz_ext, exttomux[i].ext ) )
- {
- psz_mux_byext = exttomux[i].mux;
- break;
- }
- }
- msg_Dbg( p_this, "extension -> 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, extension 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)" );
- free( psz_url );
- free( p_sys );
- return VLC_EGENERIC;
- }
- }
- if( psz_access && !psz_mux )
- {
- /* access given, no mux */
- if( !strncmp( psz_access, "mmsh", 4 ) )
- {
- psz_mux = strdup("asfh");
- }
- else if (!strcmp (psz_access, "udp"))
- {
- 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 extension" );
- free( p_sys );
- 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 warn of incompatible couple */
- 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 )
- {
- if( asprintf( &p, "asfh%s", p ) == -1 )
- p = NULL;
- free( psz_mux );
- psz_mux = p;
- }
- else
- {
- free( psz_mux );
- psz_mux = strdup("asfh");
- }
- }
- else if( !strncmp( psz_access, "udp", 3 ) )
- {
- if( !strncmp( psz_mux, "ffmpeg", 6 ) )
- { /* why would you use ffmpeg's ts muxer ? YOU DON'T LOVE VLC ??? */
- char *psz_ffmpeg_mux = var_CreateGetString( p_this, "ffmpeg-mux" );
- if( !psz_ffmpeg_mux || strncmp( psz_ffmpeg_mux, "mpegts", 6 ) )
- msg_Err( p_stream, "UDP is only valid with TS" );
- free( psz_ffmpeg_mux );
- }
- else if( strncmp( psz_mux, "ts", 2 ) )
- {
- msg_Err( p_stream, "UDP is 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 );
- free( psz_access );
- free( psz_mux );
- free( psz_url );
- free( p_sys );
- 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 );
- free( psz_access );
- free( psz_mux );
- free( psz_url );
- free( p_sys );
- return VLC_EGENERIC;
- }
- msg_Dbg( p_stream, "mux opened" );
- /* *** Create the SAP Session structure *** */
- if( var_GetBool( p_stream, SOUT_CFG_PREFIX"sap" ) )
- {
- /* Create the SDP */
- static const struct addrinfo hints = {
- .ai_family = AF_UNSPEC,
- .ai_socktype = SOCK_DGRAM,
- .ai_protocol = 0,
- .ai_flags = AI_NUMERICHOST | AI_NUMERICSERV
- };
- char *shost = var_GetNonEmptyString (p_access, "src-addr");
- char *dhost = var_GetNonEmptyString (p_access, "dst-addr");
- int sport = var_GetInteger (p_access, "src-port");
- int dport = var_GetInteger (p_access, "dst-port");
- struct sockaddr_storage src, dst;
- socklen_t srclen = 0, dstlen = 0;
- struct addrinfo *res;
- if ( vlc_getaddrinfo ( VLC_OBJECT(p_stream), dhost, dport, &hints, &res) == 0)
- {
- memcpy (&dst, res->ai_addr, dstlen = res->ai_addrlen);
- vlc_freeaddrinfo (res);
- }
- if (vlc_getaddrinfo ( VLC_OBJECT(p_stream), shost, sport, &hints, &res) == 0)
- {
- memcpy (&src, res->ai_addr, srclen = res->ai_addrlen);
- vlc_freeaddrinfo (res);
- }
- char *head = vlc_sdp_Start (VLC_OBJECT (p_stream), SOUT_CFG_PREFIX,
- (struct sockaddr *)&src, srclen,
- (struct sockaddr *)&dst, dstlen);
- free (shost);
- char *psz_sdp = NULL;
- if (head != NULL)
- {
- if (asprintf (&psz_sdp, "%s"
- "m=video %d udp mpegrn", head, dport) == -1)
- psz_sdp = NULL;
- free (head);
- }
- /* Register the SDP with the SAP thread */
- if (psz_sdp != NULL)
- {
- announce_method_t *p_method = sout_SAPMethod ();
- msg_Dbg (p_stream, "Generated SDP:n%s", psz_sdp);
- p_sys->p_session =
- sout_AnnounceRegisterSDP (p_sout, psz_sdp, dhost, p_method);
- sout_MethodRelease (p_method);
- free( psz_sdp );
- }
- free (dhost);
- }
- p_stream->pf_add = Add;
- p_stream->pf_del = Del;
- p_stream->pf_send = Send;
- p_sys->p_mux = p_mux;
- free( psz_access );
- free( psz_mux );
- free( psz_url );
- if( !sout_AccessOutCanControlPace( p_access ) )
- 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 = 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_MuxDelete( p_sys->p_mux );
- if( !sout_AccessOutCanControlPace( p_access ) )
- p_stream->p_sout->i_out_pace_nocontrol--;
- 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 )
- return NULL;
- 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;
- }