[FFmpeg-devel] [PATCH] lavu/eval: add ifzero() and ifnonzero() expression

[Stefano Sabatini]

On date Sunday 2012-01-15 23:08:55 +0100, Stefano Sabatini encoded:
> They allow to implement the if/then/else logic, which cannot be
> implemented otherwise.
> 
> For example the expression:
> A*B + not(A)*C
> 
> always evaluates to NaN if B is NaN, even in the case where A is 0.
> ---
>  doc/eval.texi    |   19 ++++++++++++-------
>  libavutil/eval.c |    8 ++++++++
>  2 files changed, 20 insertions(+), 7 deletions(-)

Documentation re-edited with a few fixes.
-- 
FFmpeg = Fancy Faithful Mere Portentous Ephemeral Guru
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