[FFmpeg-devel] [PATCH] avformat/mov: fix hang while seek on a kind of fragmented mp4.

[Michael Niedermayer]

On Wed, Feb 20, 2019 at 11:54:56PM +0800, Charles Liu wrote:
> 1. organize fragmented information according to the tracks.
> 2. do NOT skip the last boxes of fragmented info.
> 
> ticket #7572
> 
> Signed-off-by: Charles Liu <liuchh83 at gmail.com>
> ---
>  libavformat/isom.h |  10 +-
>  libavformat/mov.c  | 375 ++++++++++++++++++++++-----------------------
>  2 files changed, 185 insertions(+), 200 deletions(-)

this causes OOM and crashes

[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3796f00] stream 0, timescale not set
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3796f00] stream 1, timescale not set
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3796f00] error reading header
*** Error in `./ffmpeg': double free or corruption (fasttop): 0x000000000379b100 ***
Aborted (core dumped)


[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No snowflake in an avalanche ever feels responsible. -- Voltaire
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