[FFmpeg-devel] Again problems with lavfi/swscale

Michael Niedermayer michaelni
Sun Nov 29 13:15:17 CET 2009

On Sun, Nov 29, 2009 at 02:05:08AM +0100, Stefano Sabatini wrote:
> seems to depend on the slicification of the image (yes at this point
> is clear that we need some testing system for spotting all these
> problems).

it was clear since years that lavfi tests are required to have a
useable lavfi, its too complex and easy to break. But ive been
ignored and didnt had time to write it myself

it would be nice if some regression tests would be added before
further lavfi work is done.
The minimum filter chain to test must contain all filter pairs,
that makes ~ n^2 filters in it or n^2 tests for n distinct filters.
and then each filter should be individually tested against all


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