[FFmpeg-devel] [PATCHv3] mpeg4video: Add support for MPEG-4 Simple Studio Profile.
michael at niedermayer.cc
Sun Jan 28 18:38:43 EET 2018
On Sun, Jan 28, 2018 at 03:36:47PM +0000, Kieran Kunhya wrote:
> Patch updated to fix threading related crashes, thanks to Paul Mahol for
> Also fix segfaults on cut files by disabling unchecked bitstream reading.
if unchecked bitstream reading segfaults then you are probably missing
mpeg4 does not allow arbitrary long runs of zeros, and there are zeros in the
padding at the end of the bitstream so this should trigger an error as a
long all zero code would never be valid
Looking at the code i see that in teh DPCM branch check_marker() failure is ignored.
That could lead to a overread and segfault
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
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