[FFmpeg-devel] [RFC] Make swscale-test perform only one convertion

Ramiro Polla ramiro.polla
Fri Jan 29 05:02:37 CET 2010

On Thu, Jan 28, 2010 at 10:52 PM, Stefano Sabatini
<stefano.sabatini-lala at poste.it> wrote:
> this is meant to simplify the testing/debuggin work in lsws, and
> provide a basis for a future lswstest rule, often it happens that I
> need to test/debug only a particular conversion, I was using the scale
> lavfi filter for this but it is way easier this way.

With my swscale-test it's even easier =)

> I expected the new result to be different from the old one as the
> random source is different, but I noted that the new result is almost
> always *worse* than the old one (that is the output obtained with
> the old swscale-test), can someone explain?

I don't understand. If it's random, it should be better or worse
randomly (or the same), you shouldn't try to predict anything in the

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