Hi all,

We bumped into an issue with the mp4 encryption support we submitted a while 
ago -
in case ffmpeg decides to write a timecode track in the output mp4, it crashes.
The reason is that mov_create_timecode_track calls ff_mov_write_packet on a 
track that doesn't
have 'cenc' initialized, this in turn causes a null dereference.
The suggested fix is to change the 'if's that decide whether to encrypt to 
check whether 'cenc'
was initialized, instead of checking whether some encryption scheme was set.

Patch attached

Thanks,

Eran

Attachment: 0001-movenc-encryption-with-time-code-track-fix.patch
Description: 0001-movenc-encryption-with-time-code-track-fix.patch

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