Olive: Low CPU load on *.MXF to *.MPG convertion

[kwiwtov]

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__Olive version:__ february 2019 aplha f4668e3
__Source:__ repository for Ubuntu or website for Win version
__Operating system:__ Ubuntu 18.04 64-bit or Windows 10 64-bit
__CPU:__ any
__GPU:__ any

Detailed Description

Exporting sequence of x.MXF files to a MPEG-2 x.mpg file. Everything works fine, but CPU load is only 30-50% per any core of processor.
The same picture on a windows and ubuntu systems. On a different hardware.

Steps to reproduce

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Output log

please paste it here for better reading

[naj59]

Is that a problem? :smile:
Does it take longer than what you would expect?

[kwiwtov]

Does it take longer than what you would expect?

The current job takes 2.5 hours... If it could use all of CPU resources, it could take a maybe 2 times shorter period?

[naj59]

@kwiwtov

Ok then you are right, I am currently not looking into Olive but could a preference be the problem (something line use x amount of load, just like in Premiere)?

[kwiwtov]

Ok then you are right, I am currently not looking into Olive but could a preference be the problem (something line use x amount of load, just like in Premiere)?

There is no load settings in the app. No thread settings, or something else even close. If you are using x264 codec - the load is 100%. So, I think this is the problem of mpeg-2 coding inside the Olive or not (my other editors did not support .MXF formats).

[naj59]

Probably this problem relies more on the ffmpeg side. Currently on mobile, sorry.

You can also check up the discord in meantime..

[elsandosgrande]

Here's Discord (https://discord.gg/rvJMEYQ).

[itsmattkc]

This one's tough, we're certainly at the mercy of FFmpeg when it comes to the encoding, but to try and provide more control I've added a new option in c82ef62b13309f7a26e74f48a65f9c064d54b8a6 in Export > Advanced to allow users to specify the amount of threads to use. It's set to "auto" by default, but in case FFmpeg can't determine the correct amount, this should help.

[itsmattkc]

I believe the threads setting addresses this. If not, I suggest making an issue with FFmpeg and giving them details about your setup.