[Libav-user] Hardware decoding on iOS devices ...... VideoToolbox .. how to know?
jpm at smhk.com
Thu Jan 24 16:21:51 EET 2019
Carl, thanks a million for the answer,
(1) Ahh, fascinating. So it could be that
i. ffmpeg is in fact using VideoToolbox
ii. VideoToolbox is using software decoding !!!!!!!!!!!
Good grief! I did not think of that!
Let me ask,
(Q1) Is there a way to absolutely know if Ffmpeg is using VideoToolbox?
It seems that
A- sometimes ffmpeg decodes itself in software
B- sometimes ffmpeg uses VideoToolbox
the first problem we face is whether A or B is happening.
For example, would there be a way to simply turn off “A”
so that it will either use VideoToolbox, or just fail ?
This would drastically help by removing one variable.
How to know if ffmpeg used VideoToolbox?
Thanks again .. really …
> On Jan 24, 2019, at 7:37 AM, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> 2019-01-24 14:20 GMT+01:00, JP May <jpm at smhk.com>:
>> My question is simply: How do you ABSOLUTELY KNOW
>> whether hardware or software decoding was used?
> I don't think so as VideoToolbox does software decoding at least
> Carl Eugen
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Libav-user