/***************************************************************************** * shoutcast.c: Winamp >=5.2 shoutcast demuxer ***************************************************************************** * Copyright (C) 2006 the VideoLAN team * $Id$ * * Authors: Antoine Cellerier <dionoea -@t- videolan -Dot- org> * based on b4s.c by Sigmund Augdal Helberg <dnumgis@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_demux.h> #include "playlist.h" #include "vlc_xml.h" struct demux_sys_t { input_item_t *p_current_input; xml_t *p_xml; xml_reader_t *p_xml_reader; bool b_adult; }; /* duplicate from modules/services_discovery/shout.c */ #define SHOUTCAST_BASE_URL "http/shout-winamp://www.shoutcast.com/sbin/newxml.phtml" #define SHOUTCAST_TUNEIN_BASE_URL "http://www.shoutcast.com" #define SHOUTCAST_TV_TUNEIN_URL "http://www.shoutcast.com/sbin/tunein-tvstation.pls?id=" /***************************************************************************** * Local prototypes *****************************************************************************/ static int Demux( demux_t *p_demux); static int Control( demux_t *p_demux, int i_query, va_list args ); static int DemuxGenre( demux_t *p_demux ); static int DemuxStation( demux_t *p_demux ); /***************************************************************************** * Import_Shoutcast: main import function *****************************************************************************/ int Import_Shoutcast( vlc_object_t *p_this ) { demux_t *p_demux = (demux_t *)p_this; if( !demux_IsForced( p_demux, "shout-winamp" ) ) return VLC_EGENERIC; STANDARD_DEMUX_INIT_MSG( "using shoutcast playlist reader" ); p_demux->p_sys->p_xml = NULL; p_demux->p_sys->p_xml_reader = NULL; /* Do we want to list adult content ? */ var_Create( p_demux, "shoutcast-show-adult", VLC_VAR_BOOL | VLC_VAR_DOINHERIT ); p_demux->p_sys->b_adult = var_GetBool( p_demux, "shoutcast-show-adult" ); return VLC_SUCCESS; } /***************************************************************************** * Deactivate: frees unused data *****************************************************************************/ void Close_Shoutcast( vlc_object_t *p_this ) { demux_t *p_demux = (demux_t *)p_this; demux_sys_t *p_sys = p_demux->p_sys; if( p_sys->p_xml_reader ) xml_ReaderDelete( p_sys->p_xml, p_sys->p_xml_reader ); if( p_sys->p_xml ) xml_Delete( p_sys->p_xml ); free( p_sys ); } static int Demux( demux_t *p_demux ) { demux_sys_t *p_sys = p_demux->p_sys; xml_t *p_xml; xml_reader_t *p_xml_reader; char *psz_eltname = NULL; INIT_PLAYLIST_STUFF; p_sys->p_current_input = p_current_input; p_xml = p_sys->p_xml = xml_Create( p_demux ); if( !p_xml ) return -1; p_xml_reader = xml_ReaderCreate( p_xml, p_demux->s ); if( !p_xml_reader ) return -1; p_sys->p_xml_reader = p_xml_reader; /* check root node */ if( xml_ReaderRead( p_xml_reader ) != 1 ) { msg_Err( p_demux, "invalid file (no root node)" ); return -1; } if( xml_ReaderNodeType( p_xml_reader ) != XML_READER_STARTELEM || ( psz_eltname = xml_ReaderName( p_xml_reader ) ) == NULL || ( strcmp( psz_eltname, "genrelist" ) && strcmp( psz_eltname, "stationlist" ) ) ) { msg_Err( p_demux, "invalid root node %i, %s", xml_ReaderNodeType( p_xml_reader ), psz_eltname ); free( psz_eltname ); return -1; } if( !strcmp( psz_eltname, "genrelist" ) ) { /* we're reading a genre list */ free( psz_eltname ); if( DemuxGenre( p_demux ) ) return -1; } else { /* we're reading a station list */ free( psz_eltname ); if( DemuxStation( p_demux ) ) return -1; } HANDLE_PLAY_AND_RELEASE; return 0; /* Needed for correct operation of go back */ } #define GET_VALUE( a ) \ if( !strcmp( psz_attrname, #a ) ) \ { \ psz_ ## a = strdup( psz_attrvalue ); \ } /* <genrelist> * <genre name="the name"></genre> * ... * </genrelist> **/ static int DemuxGenre( demux_t *p_demux ) { demux_sys_t *p_sys = p_demux->p_sys; char *psz_name = NULL; /* genre name */ char *psz_eltname = NULL; /* tag name */ input_item_t *p_input; while( xml_ReaderRead( p_sys->p_xml_reader ) == 1 ) { int i_type; // Get the node type i_type = xml_ReaderNodeType( p_sys->p_xml_reader ); switch( i_type ) { // Error case -1: return -1; break; case XML_READER_STARTELEM: // Read the element name psz_eltname = xml_ReaderName( p_sys->p_xml_reader ); if( !psz_eltname ) return -1; if( !strcmp( psz_eltname, "genre" ) ) { // Read the attributes while( xml_ReaderNextAttr( p_sys->p_xml_reader ) == VLC_SUCCESS ) { char *psz_attrname = xml_ReaderName( p_sys->p_xml_reader ); char *psz_attrvalue = xml_ReaderValue( p_sys->p_xml_reader ); if( !psz_attrname || !psz_attrvalue ) { FREENULL(psz_attrname); FREENULL(psz_attrvalue); free(psz_eltname); /*FIXME: isn't return a bit too much. what about break*/ return -1; } GET_VALUE( name ) else { msg_Warn( p_demux, "unexpected attribure %s in element %s", psz_attrname,psz_eltname ); } free( psz_attrname ); free( psz_attrvalue ); } } free( psz_eltname ); psz_eltname = NULL; break; case XML_READER_TEXT: break; // End element case XML_READER_ENDELEM: // Read the element name psz_eltname = xml_ReaderName( p_sys->p_xml_reader ); if( !psz_eltname ) return -1; if( !strcmp( psz_eltname, "genre" ) ) { char* psz_mrl; if( asprintf( &psz_mrl, SHOUTCAST_BASE_URL "?genre=%s", psz_name ) != -1 ) { p_input = input_item_New( p_demux, psz_mrl, psz_name ); input_item_CopyOptions( p_sys->p_current_input, p_input ); free( psz_mrl ); input_item_AddSubItem( p_sys->p_current_input, p_input ); vlc_gc_decref( p_input ); } FREENULL( psz_name ); } FREENULL( psz_eltname ); break; } } return 0; } /* radio stations: * <stationlist> * <tunein base="/sbin/tunein-station.pls"></tunein> * <station name="the name" * mt="mime type" * id="the id" * br="bit rate" * genre="A big genre string" * ct="current track name/author/..." * lc="listener count"></station> * </stationlist> * * TV stations: * <stationlist> * <tunein base="/sbin/tunein-station.pls"></tunein> * <station name="the name" * id="the id" * br="bit rate" * rt="rating" * load="server load ?" * ct="current track name/author/..." * genre="A big genre string" * lc="listener count"></station> * </stationlist> **/ static int DemuxStation( demux_t *p_demux ) { demux_sys_t *p_sys = p_demux->p_sys; input_item_t *p_input; char *psz_base = NULL; /* */ char *psz_name = NULL; /* genre name */ char *psz_mt = NULL; /* mime type */ char *psz_id = NULL; /* id */ char *psz_br = NULL; /* bit rate */ char *psz_genre = NULL; /* genre */ char *psz_ct = NULL; /* current track */ char *psz_lc = NULL; /* listener count */ /* If these are set then it's *not* a radio but a TV */ char *psz_rt = NULL; /* rating for shoutcast TV */ char *psz_load = NULL; /* load for shoutcast TV */ char *psz_eltname = NULL; /* tag name */ while( xml_ReaderRead( p_sys->p_xml_reader ) == 1 ) { int i_type; // Get the node type i_type = xml_ReaderNodeType( p_sys->p_xml_reader ); switch( i_type ) { // Error case -1: return -1; break; case XML_READER_STARTELEM: // Read the element name psz_eltname = xml_ReaderName( p_sys->p_xml_reader ); if( !psz_eltname ) return -1; // Read the attributes if( !strcmp( psz_eltname, "tunein" ) ) { while( xml_ReaderNextAttr( p_sys->p_xml_reader ) == VLC_SUCCESS ) { char *psz_attrname = xml_ReaderName( p_sys->p_xml_reader ); char *psz_attrvalue = xml_ReaderValue( p_sys->p_xml_reader ); if( !psz_attrname || !psz_attrvalue ) { free( psz_eltname ); free( psz_attrname ); free( psz_attrvalue ); return -1; } GET_VALUE( base ) else { msg_Warn( p_demux, "unexpected attribure %s in element %s", psz_attrname, psz_eltname ); } free( psz_attrname ); free( psz_attrvalue ); } } else if( !strcmp( psz_eltname, "station" ) ) { while( xml_ReaderNextAttr( p_sys->p_xml_reader ) == VLC_SUCCESS ) { char *psz_attrname = xml_ReaderName( p_sys->p_xml_reader ); char *psz_attrvalue = xml_ReaderValue( p_sys->p_xml_reader ); if( !psz_attrname || !psz_attrvalue ) { free( psz_eltname ); free( psz_attrname ); free( psz_attrvalue ); return -1; } GET_VALUE( name ) else GET_VALUE( mt ) else GET_VALUE( id ) else GET_VALUE( br ) else GET_VALUE( genre ) else GET_VALUE( ct ) else GET_VALUE( lc ) else GET_VALUE( rt ) else GET_VALUE( load ) else { msg_Warn( p_demux, "unexpected attribute %s in element %s", psz_attrname, psz_eltname ); } free( psz_attrname ); free( psz_attrvalue ); } } free( psz_eltname ); break; case XML_READER_TEXT: break; // End element case XML_READER_ENDELEM: // Read the element name psz_eltname = xml_ReaderName( p_sys->p_xml_reader ); if( !psz_eltname ) return -1; if( !strcmp( psz_eltname, "station" ) && ( psz_base || ( psz_rt && psz_load && ( p_sys->b_adult || strcmp( psz_rt, "NC17" ) ) ) ) ) { char *psz_mrl = NULL; if( psz_rt || psz_load ) { /* tv */ if( asprintf( &psz_mrl, SHOUTCAST_TV_TUNEIN_URL "%s", psz_id ) == -1) psz_mrl = NULL; } else { /* radio */ if( asprintf( &psz_mrl, SHOUTCAST_TUNEIN_BASE_URL "%s?id=%s", psz_base, psz_id ) == -1 ) psz_mrl = NULL; } p_input = input_item_New( p_demux, psz_mrl, psz_name ); input_item_CopyOptions( p_sys->p_current_input, p_input ); free( psz_mrl ); #define SADD_INFO( type, field ) \ if( field ) \ input_item_AddInfo( p_input, _("Shoutcast"), \ vlc_gettext(type), "%s", field ) SADD_INFO( N_("Mime"), psz_mt ); SADD_INFO( N_("Bitrate"), psz_br ); SADD_INFO( N_("Listeners"), psz_lc ); SADD_INFO( N_("Load"), psz_load ); if( psz_genre ) input_item_SetGenre( p_input, psz_genre ); if( psz_ct ) input_item_SetNowPlaying( p_input, psz_ct ); if( psz_rt ) input_item_SetRating( p_input, psz_rt ); input_item_AddSubItem( p_sys->p_current_input, p_input ); vlc_gc_decref( p_input ); FREENULL( psz_name ); FREENULL( psz_mt ); FREENULL( psz_id ); FREENULL( psz_br ); FREENULL( psz_genre ); FREENULL( psz_ct ); FREENULL( psz_lc ); FREENULL( psz_rt ); } free( psz_eltname ); break; } } return 0; } static int Control( demux_t *p_demux, int i_query, va_list args ) { VLC_UNUSED(p_demux); VLC_UNUSED(i_query); VLC_UNUSED(args); return VLC_EGENERIC; }