1 /*
2 * VorbisComment writer
3 * Copyright (c) 2009 James Darnley
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
27
28 /**
29 * VorbisComment metadata conversion mapping.
30 * from Ogg Vorbis I format specification: comment field and header specification
31 * http://xiph.org/vorbis/doc/v-comment.html
32 */
34 { "ALBUMARTIST", "album_artist"},
35 { "TRACKNUMBER", "track" },
36 { "DISCNUMBER", "disc" },
37 { "DESCRIPTION", "comment" },
38 { 0 }
39 };
40
42 {
44 len += strlen(vendor_string);
45 if (m) {
48 len += 4 +strlen(tag->
key) + 1 + strlen(tag->
value);
49 }
50 }
52 }
53
55 const char *vendor_string)
56 {
57 bytestream_put_le32(p, strlen(vendor_string));
59 if (*m) {
62 bytestream_put_le32(p, count);
64 unsigned int len1 = strlen(tag->
key);
65 unsigned int len2 = strlen(tag->
value);
66 bytestream_put_le32(p, len1+1+len2);
68 bytestream_put_byte(p, '=');
70 }
71 } else
72 bytestream_put_le32(p, 0);
73 return 0;
74 }