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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-02-18 19:48:44 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-02-18 20:37:17 +0100 |
| commit | 695a766bff4cd8414a84e58159506d72b4e44892 (patch) | |
| tree | cd494a90655cfa00ba4b97e17818b5b675462356 /libavformat/utils.c | |
| parent | 85921499c747a57cef4ae625cb85e6ebfa1bebf1 (diff) | |
ff_read_timestamp: check stream_index before using it as array index
Fixes out of array read
Found-by: durandal_1707
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/utils.c')
| -rw-r--r-- | libavformat/utils.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c index 009aeb031a..d59a02d951 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -1767,7 +1767,10 @@ int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp, static int64_t ff_read_timestamp(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit, int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t )) { - return wrap_timestamp(s->streams[stream_index], read_timestamp(s, stream_index, ppos, pos_limit)); + int64_t ts = read_timestamp(s, stream_index, ppos, pos_limit); + if (stream_index >= 0) + ts = wrap_timestamp(s->streams[stream_index], ts); + return ts; } int ff_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags) |