mirror of
https://code.videolan.org/videolan/vlc
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193 lines
6.0 KiB
C
193 lines
6.0 KiB
C
/*****************************************************************************
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* musicbrainz.c
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*****************************************************************************
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* Copyright (C) 2006 the VideoLAN team
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* $Id$
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*
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* Authors: Antoine Cellerier <dionoea -at- videolan -dot- org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <vlc/vlc.h>
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#include <vlc_interface.h>
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#include <vlc_input.h>
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#include <vlc_playlist.h>
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#include <vlc_meta.h>
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#include "musicbrainz/mb_c.h"
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/*****************************************************************************
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* Local prototypes
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*****************************************************************************/
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static int FindArt( vlc_object_t * );
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static int FindMetaMBId( vlc_object_t *p_this );
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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vlc_module_begin();
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set_shortname( N_( "MusicBrainz" ) );
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set_description( _("MusicBrainz meta data") );
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set_capability( "meta fetcher", 10 );
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/* This meta fetcher module only retrieves the musicbrainz track id
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* and stores it
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* TODO:
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* - Actually do it
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* - Also store the album id
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* */
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set_callbacks( FindMetaMBId, NULL );
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add_submodule();
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/* This art finder module fetches the album ID from musicbrainz and
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* uses it to fetch the amazon ASIN from musicbrainz.
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* TODO:
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* - Add ability to reuse MB album ID if we already have it
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*/
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set_capability( "art finder", 80 );
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set_callbacks( FindArt, NULL );
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vlc_module_end();
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/*****************************************************************************
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*****************************************************************************/
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static int GetData( vlc_object_t *p_obj, input_item_t *p_item,
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vlc_bool_t b_art )
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{
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char psz_buf[256];
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char psz_data[256];
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char i_album_count, i;
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char *ppsz_args[4];
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vlc_bool_t b_art_found = VLC_FALSE;
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char *psz_artist;
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char *psz_album;
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psz_artist = input_item_GetArtist( p_item );
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psz_album = input_item_GetAlbum( p_item );
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if( !psz_artist || !psz_album )
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{
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free( psz_artist );
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free( psz_album );
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return VLC_EGENERIC;
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}
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musicbrainz_t p_mb;
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p_mb = mb_New();
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#ifdef WIN32
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mb_WSAInit( p_mb );
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#endif
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mb_SetDepth( p_mb, 2 );
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ppsz_args[0] = psz_album;
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ppsz_args[1] = psz_artist;
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ppsz_args[2] = NULL;
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if( !mb_QueryWithArgs( p_mb,
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"<mq:FindAlbum>\n" \
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" <mq:depth>@DEPTH@</mq:depth>\n" \
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" <mq:maxItems>@MAX_ITEMS@</mq:maxItems>\n" \
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" <mq:albumName>@1@</mq:albumName>\n" \
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" <mq:artistName>@2@</mq:artistName>\n" \
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"</mq:FindAlbum>\n", ppsz_args ) )
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{
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mb_GetQueryError( p_mb, psz_buf, 256 );
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msg_Err( p_obj, "Query failed: %s", psz_buf );
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mb_Delete( p_mb );
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free( psz_artist );
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free( psz_album );
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return VLC_EGENERIC;
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}
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free( psz_artist );
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free( psz_album );
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i_album_count = mb_GetResultInt( p_mb, MBE_GetNumAlbums );
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if( i_album_count < 1 )
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{
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mb_Delete( p_mb );
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return VLC_EGENERIC;
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}
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/** \todo Get the MB Track ID and store it */
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msg_Dbg( p_obj, "found %d albums.\n", i_album_count );
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for( i = 1; i <= i_album_count; i++ )
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{
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mb_Select( p_mb, MBS_Rewind );
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mb_Select1( p_mb, MBS_SelectAlbum, i );
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mb_GetResultData( p_mb, MBE_AlbumGetAlbumId, psz_data, 256 );
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mb_GetIDFromURL( p_mb, psz_data, psz_buf, 256 );
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msg_Dbg( p_obj, "album Id: %s", psz_buf );
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if( !b_art )
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break;
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if( mb_GetResultData( p_mb, MBE_AlbumGetAmazonAsin, psz_buf, 256 ) )
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{
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msg_Dbg( p_obj, "Amazon ASIN: %s", psz_buf );
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snprintf( psz_data, 255,
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"http://images.amazon.com/images/P/%s.01._SCLZZZZZZZ_.jpg",
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psz_buf );
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msg_Dbg( p_obj, "Album art URL: %s", psz_data );
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input_item_SetArtURL( p_item, psz_data );
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b_art_found = VLC_TRUE;
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break;
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}
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}
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#ifdef WIN32
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mb_WSAInit( p_mb );
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#endif
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mb_Delete( p_mb );
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if( !b_art )
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return VLC_SUCCESS;
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else
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return b_art_found ? VLC_SUCCESS : VLC_EGENERIC;
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}
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static int FindMetaMBId( vlc_object_t *p_this )
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{
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meta_engine_t *p_me = (meta_engine_t *)p_this;
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input_item_t *p_item = p_me->p_item;
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int i_ret = GetData( VLC_OBJECT(p_me), p_item,
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p_me->i_mandatory & VLC_META_ENGINE_ART_URL );
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if( !i_ret )
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{
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uint32_t i_meta = input_CurrentMetaFlags( input_item_GetMetaObject( p_item ) );
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p_me->i_mandatory &= ~i_meta;
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p_me->i_optional &= ~i_meta;
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return p_me->i_mandatory ? VLC_EGENERIC : VLC_SUCCESS;
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}
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return VLC_EGENERIC;
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}
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static int FindArt( vlc_object_t *p_this )
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{
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playlist_t *p_playlist = (playlist_t *)p_this;
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input_item_t *p_item = (input_item_t *)(p_playlist->p_private);
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assert( p_item );
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return GetData( VLC_OBJECT(p_playlist), p_item, VLC_TRUE );
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}
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