avformat/rmdec: Check codec_data_size

Fixes infinite loop
Fixes Ticket4154

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a6f730730b82645a9d31aad0968487cb77d6946c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-12-03 20:01:18 +01:00
parent 0b5d644839
commit a5c43d7c87

View File

@ -305,6 +305,9 @@ ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVIOContext *pb,
int64_t codec_pos;
int ret;
if (codec_data_size < 0)
return AVERROR_INVALIDDATA;
avpriv_set_pts_info(st, 64, 1, 1000);
codec_pos = avio_tell(pb);
v = avio_rb32(pb);