FFmpeg
vorbiscomment.h
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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 
22 #ifndef AVFORMAT_VORBISCOMMENT_H
23 #define AVFORMAT_VORBISCOMMENT_H
24 
25 #include "avformat.h"
26 #include "metadata.h"
27 
28 /**
29  * Calculate the length in bytes of a VorbisComment. This is the minimum
30  * size required by ff_vorbiscomment_write().
31  *
32  * @param m The metadata structure to be parsed. For no metadata, set to NULL.
33  * @param vendor_string The vendor string to be added into the VorbisComment.
34  * For no string, set to an empty string.
35  * @return The length in bytes.
36  */
37 int64_t ff_vorbiscomment_length(const AVDictionary *m, const char *vendor_string,
38  AVChapter **chapters, unsigned int nb_chapters);
39 
40 /**
41  * Write a VorbisComment into an AVIOContext. The output size can be obtained
42  * in advance by passing the same chapters, AVDictionary and vendor_string to
43  * ff_vorbiscomment_length()
44  *
45  * @param pb The AVIOContext to write the output.
46  * @param m The metadata struct to write.
47  * @param vendor_string The vendor string to write.
48  * @param chapters The chapters to write.
49  * @param nb_chapters The number of chapters to write.
50  */
52  const char *vendor_string,
53  AVChapter **chapters, unsigned int nb_chapters);
54 
56 
57 #endif /* AVFORMAT_VORBISCOMMENT_H */
Bytestream IO Context.
Definition: avio.h:161
internal metadata API header see avformat.h or the public API!
const AVMetadataConv ff_vorbiscomment_metadata_conv[]
VorbisComment metadata conversion mapping.
Definition: vorbiscomment.c:33
int ff_vorbiscomment_write(AVIOContext *pb, const AVDictionary *m, const char *vendor_string, AVChapter **chapters, unsigned int nb_chapters)
Write a VorbisComment into an AVIOContext.
Definition: vorbiscomment.c:65
Main libavformat public API header.
int64_t ff_vorbiscomment_length(const AVDictionary *m, const char *vendor_string, AVChapter **chapters, unsigned int nb_chapters)
Calculate the length in bytes of a VorbisComment.
Definition: vorbiscomment.c:41