1 /*****************************************************************************
2 * ID3Meta.h : ID3v2 Meta Helper
3 *****************************************************************************
4 * Copyright (C) 2016 VLC authors and VideoLAN
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published by
8 * the Free Software Foundation; either version 2.1 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19 *****************************************************************************/
26 #define vlc_meta_extra vlc_meta_Title
32 } const ID3_tag_to_metatype
[] = {
33 { VLC_FOURCC('T', 'A', 'L', 'B'), vlc_meta_Album
, NULL
},
34 { VLC_FOURCC('T', 'D', 'R', 'C'), vlc_meta_Date
, NULL
},
35 { VLC_FOURCC('T', 'E', 'N', 'C'), vlc_meta_extra
, "Encoder" },
36 { VLC_FOURCC('T', 'I', 'T', '2'), vlc_meta_Title
, NULL
},
37 { VLC_FOURCC('T', 'O', 'P', 'E'), vlc_meta_extra
, "Original Artist" },
38 { VLC_FOURCC('T', 'O', 'R', 'Y'), vlc_meta_extra
, "Original Release Year" },
39 { VLC_FOURCC('T', 'P', 'E', '1'), vlc_meta_Artist
, NULL
},
40 { VLC_FOURCC('T', 'P', 'E', '2'), vlc_meta_AlbumArtist
, NULL
},
41 { VLC_FOURCC('T', 'R', 'S', 'N'), vlc_meta_Publisher
, NULL
},
42 { VLC_FOURCC('T', 'R', 'S', 'O'), vlc_meta_extra
, "Radio Station Owner" },
46 static bool ID3TextTagHandler( const uint8_t *p_buf
, size_t i_buf
,
47 vlc_meta_type_t type
, const char *psz_extra
,
48 vlc_meta_t
*p_meta
, bool *pb_updated
)
54 const char *psz
= ID3TextConvert( p_buf
, i_buf
, &p_alloc
);
57 const char *psz_old
= ( psz_extra
) ? vlc_meta_GetExtra( p_meta
, psz_extra
):
58 vlc_meta_Get( p_meta
, type
);
59 if( !psz_old
|| strcmp( psz_old
, psz
) )
64 vlc_meta_AddExtra( p_meta
, psz_extra
, psz
);
66 vlc_meta_Set( p_meta
, type
, psz
);
74 static bool ID3LinkFrameTagHandler( const uint8_t *p_buf
, size_t i_buf
,
75 vlc_meta_t
*p_meta
, bool *pb_updated
)
77 if( i_buf
> 13 && p_meta
)
79 const char *psz
= (const char *)&p_buf
[1];
80 size_t i_len
= i_buf
- 1;
81 size_t i_desclen
= strnlen(psz
, i_len
);
82 if( i_desclen
< i_len
- 1 && i_desclen
> 11 &&
83 !strncmp( "artworkURL_", psz
, 11 ) )
85 const char *psz_old
= vlc_meta_Get( p_meta
, vlc_meta_ArtworkURL
);
86 if( !psz_old
|| strncmp( psz_old
, &psz
[i_desclen
], i_len
- i_desclen
) )
88 char *p_alloc
= strndup(&psz
[i_desclen
+ 1], i_len
- i_desclen
- 1);
89 vlc_meta_Set( p_meta
, vlc_meta_ArtworkURL
, p_alloc
);
99 static bool ID3HandleTag( const uint8_t *p_buf
, size_t i_buf
,
101 vlc_meta_t
*p_meta
, bool *pb_updated
)
103 if( i_tag
== VLC_FOURCC('W', 'X', 'X', 'X') )
105 return ID3LinkFrameTagHandler( p_buf
, i_buf
, p_meta
, pb_updated
);
107 else if( i_tag
== VLC_FOURCC('T', 'X', 'X', 'X') )
110 const char *psz_key
= ID3TextConvert( p_buf
, i_buf
, &psz_key_alloc
);
113 const size_t i_len
= strlen( psz_key
) + 2;
116 /* Only set those which are known as non binary */
117 if( !strncasecmp( psz_key
, "REPLAYGAIN_", 11 ) )
120 const char *psz_val
= ID3TextConv( &p_buf
[i_len
], i_buf
- i_len
,
121 p_buf
[0], &psz_val_alloc
);
124 vlc_meta_AddExtra( p_meta
, psz_key
, psz_val
);
125 free( psz_val_alloc
);
129 free( psz_key_alloc
);
130 return (vlc_meta_GetExtraCount( p_meta
) > 0);
133 else if ( ((const char *) &i_tag
)[0] == 'T' )
135 for( size_t i
=0; i
<ARRAY_SIZE(ID3_tag_to_metatype
); i
++ )
137 if( ID3_tag_to_metatype
[i
].i_tag
== i_tag
)
138 return ID3TextTagHandler( p_buf
, i_buf
,
139 ID3_tag_to_metatype
[i
].type
,
140 ID3_tag_to_metatype
[i
].psz
,
141 p_meta
, pb_updated
);