1 /*****************************************************************************
2 * vorbis.h: Vorbis Comment parser
3 *****************************************************************************
4 * Copyright (C) 2008 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 static inline void vorbis_ParseComment( vlc_meta_t **pp_meta, const uint8_t *p_data, int i_data )
31 #define RM(x) do { i_data -= (x); p_data += (x); } while(0)
32 n = GetDWLE(p_data); RM(4);
33 if( n < 0 || n > i_data )
38 /* TODO report vendor string ? */
39 char *psz_vendor = psz_vendor = strndup( p_data, n );
48 i_comment = GetDWLE(p_data); RM(4);
53 vlc_meta_t *p_meta = *pp_meta;
55 *pp_meta = p_meta = vlc_meta_New();
59 for( ; i_comment > 0; i_comment-- )
64 n = GetDWLE(p_data); RM(4);
70 psz = strndup( (const char*)p_data, n );
75 #define IF_EXTRACT(txt,var) \
76 if( !strncasecmp(psz, txt, strlen(txt)) ) \
78 const char *oldval = vlc_meta_Get( p_meta, vlc_meta_ ## var ); \
82 if( asprintf( &newval, "%s,%s", oldval, &psz[strlen(txt)] ) == -1 ) \
84 vlc_meta_Set( p_meta, vlc_meta_ ## var, newval ); \
88 vlc_meta_Set( p_meta, vlc_meta_ ## var, &psz[strlen(txt)] ); \
90 IF_EXTRACT("TITLE=", Title )
91 else IF_EXTRACT("ALBUM=", Album )
92 else IF_EXTRACT("TRACKNUMBER=", TrackNumber )
93 else IF_EXTRACT("ARTIST=", Artist )
94 else IF_EXTRACT("COPYRIGHT=", Copyright )
95 else IF_EXTRACT("DESCRIPTION=", Description )
96 else IF_EXTRACT("GENRE=", Genre )
97 else IF_EXTRACT("DATE=", Date )
98 else if( strchr( psz, '=' ) )
100 /* generic (PERFORMER/LICENSE/ORGANIZATION/LOCATION/CONTACT/ISRC,
101 * undocumented tags and replay gain ) */
102 char *p = strchr( psz, '=' );
104 vlc_meta_AddExtra( p_meta, psz, p );