[FFmpeg-devel] [Bulk] Re: [Bulk] [PATCH] avformat/mxfdec: dont truncate packets

Michael Niedermayer michaelni at gmx.at
Tue Feb 4 17:07:28 CET 2014

On Tue, Feb 04, 2014 at 04:54:18PM +0100, Michael Niedermayer wrote:

> Also with external libs you generally cannot do regression tests as
> their output changes depending on their and not our revission.

to elaborate on this slightly
when testing our code the output (should) only depend on our revission
so its easy to keep the checksum with our code

but when testing involves external libs the output would depend on
both our revission and the external libs revission making checksum
management and update much trickier.
A update to our codebase might need updating multiple checksums that
would need testing with multiple revissions of the external lib
similar a change to the external lib would require updating multiple
checksums and require testing with multiple ffmpeg revissions.
One could summarize it as that its unlikely that regression checks
with external libs will become very common except for simple cases
where an external lib has very stable output over time


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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