[FFmpeg-user] Difference between mpeg4 and msmpeg4v2 encoders?

Carl Eugen Hoyos ceffmpeg at gmail.com
Sat Mar 16 10:25:27 EET 2019


Am Fr., 15. März 2019 um 16:53 Uhr schrieb Moritz Barsnick <barsnick at gmx.net>:
>
> On Fri, Mar 15, 2019 at 10:37:20 -0400, FFmpeg user discussions wrote:
> > My understanding is that msmpeg4v2 is a Microsoft variant on mpeg4.
>
> That's what I also understand.
>
> > What did they do to it?
>
> I'm too lazy to check the details. It appears the codec is implemented
> against a pre-version of the MPEG4 standard, and not quite compliant to
> the final version.

This is all correct, I'd like to add that there are three versions of
this codec,
v1 and v2 have limited quality, v3 should be similar to vanilla mpeg4 and that
I would expect Microsoft to remove the decoders from current Windows at
some point.

Carl Eugen


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