[FFmpeg-devel] [PATCH 08/17] lavfi: add helpers to consume frames from link FIFOs.

[Michael Niedermayer]

On Sun, Dec 25, 2016 at 02:00:13AM +0100, Nicolas George wrote:
> Le quintidi 5 nivôse, an CCXXV, Michael Niedermayer a écrit :
> > Why do these functions exist twice ?
> > the API would be simpler with just one set
> 
> You mean the _samples / _frame versions, or the normal / _sure versions?

i meant the _sure versions


> 
> The _samples / _frame case seemed easier than distinguishing using
> special values of the arguments.
> 

> The normal / _sure are useful to express that availability check has
> already done.
> 
> That way, if the check is or becomes invalid (maybe because someone adds
> a special case between the test and the use) it is detected by an assert
> failure during FATE rather than become an ignored error code. I caught
> quite a few mistakes that way.

Whats your oppinion on using a explicit av_assert1() in the calling
code for this ? (i assume it can be done easily&cleanly)

It would explicitly in C code say what is meant, while a
"_sure" requires additional knowledge specific to lavfi

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Modern terrorism, a quick summary: Need oil, start war with country that
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and strip your own citizens of their rights and freedoms. to be continued
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