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| author | Peter Ross <pross@xvid.org> | 2014-04-18 14:49:40 +1000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-04-19 04:25:01 +0200 |
| commit | 5331773cc33ba26b9e26ace643d926219e46a17b (patch) | |
| tree | 9b66a00bf0b540d8bfd5b69ab5b36ddf220579f4 /libavformat/id3v2.h | |
| parent | c94305ae23318c8956a30485cd5642829f4f16a9 (diff) | |
| download | ffmpeg-5331773cc33ba26b9e26ace643d926219e46a17b.tar.gz | |
ff_id3v2_read: add option to limit ID3 magic number search
Several chunked formats (AIFF, IFF,DSF) store ID3 metadata within an 'ID3 '
chunk tag. If such chunks are stored sequentially, it is possible for the
ID3v2 parser to confuse the chunk tag for the ID3 magic number. e.g.
[1st chunk tag ('ID3 ') | chunk size] [ID3 magic number | metadata ...]
[2nd chunk tag ('ID3 ') | chunk size] [ID3 magic number | metadata ...]
Fixes ticket #3530.
Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/id3v2.h')
| -rw-r--r-- | libavformat/id3v2.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavformat/id3v2.h b/libavformat/id3v2.h index eb4dc799e6..9d7bf1c03c 100644 --- a/libavformat/id3v2.h +++ b/libavformat/id3v2.h @@ -112,8 +112,10 @@ void ff_id3v2_read_dict(AVIOContext *pb, AVDictionary **metadata, const char *ma * * @param extra_meta If not NULL, extra metadata is parsed into a list of * ID3v2ExtraMeta structs and *extra_meta points to the head of the list + * @param[opt] max_search_search restrict ID3 magic number search (bytes from start) */ -void ff_id3v2_read(AVFormatContext *s, const char *magic, ID3v2ExtraMeta **extra_meta); +void ff_id3v2_read(AVFormatContext *s, const char *magic, ID3v2ExtraMeta **extra_meta, + unsigned int max_search_size); /** * Initialize an ID3v2 tag. |