[Libav-user] h264,h265: maximum referenced frames vs. GOP size

[Hendrik Leppkes]

On Thu, Sep 10, 2015 at 10:21 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Heiner Mueller <ffmpeg at ...> writes:
>
>> i found this in the DXVA code, and i would like
>> to optimize it a bit:
>
> Then please send your tested patch (made with git
> format-patch) to the development mailing list
> where it can be reviewed.
>

I can save you the trouble though. First of all, gop_size is an
encoding parameter, and not useful here at all.
Secondly, there is unfortunately no parameter that conveys this
information that is both (1) accurate, and (2) known early enough to
be useful.

So, this cannot be "improved" really.