diff options
-rw-r--r-- | libavformat/realtextdec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/realtextdec.c b/libavformat/realtextdec.c index e12871e6ad..204e557aa2 100644 --- a/libavformat/realtextdec.c +++ b/libavformat/realtextdec.c @@ -87,6 +87,10 @@ static int realtext_read_header(AVFormatContext *s) /* save header to extradata */ const char *p = ff_smil_get_attr_ptr(buf.str, "duration"); + if (st->codecpar->extradata) { + res = AVERROR_INVALIDDATA; + goto end; + } if (p) duration = read_ts(p); st->codecpar->extradata = av_strdup(buf.str); |