[FFmpeg-devel] [PATCH 2/2] avisynth: support pix_fmts added to AviSynth+

[Stephen Hutchinson]

On 8/16/2016 9:46 AM, Roger Pack wrote:
> Does this require some version check in configure to be added as well?
>

No. We ship the header ourselves, rendering a version check in configure 
moot.  What configure checks for is the presence of the dynamic loading 
functionality that the library depends on.

The actual version compliancy checking occurs inside the AviSynth 
demuxer: version 2.5 is checked for at load time and rejected.  This 
patch adds a check for whether we're using AviSynth+ by detecting the 
presence of the planar RGB functions in the library, and if that's false 
(in other words, 2.6 is the one being used), it stops 2.6 from even 
attempting to use the two functions that it doesn't have.