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Kolor Eyes Desktop - Video decoding

Video decoding

You can change video plugin through the category « Video Plugin » in the menu.

By default, Kolor Eyes will choose the best default video plugin according to your OS and if you are using an Oculus or not. Default video plugins according to OS are listed here.

Changing the video plugin will directly affect Kolor Eyes video decoding abilities. Kolor Eyes will use a different video backend according to this setting. Available backends will depends on the platform.


Change video plugin

Windows

There are four video backends available on Windows platform : VLC, VLC with DXVA 2, WMF (Windows Media Foundation) and DirectShow.

Use of Directshow is deprecated but we still allow you to use it.


VLC

This backend uses libVLC to decode video. You should never encounter errors with backend.

Unfortunalty, VLC on Windows does not support video hardware decoding for now and so high resolutions, as 4K, can be jerky.


VLC with DXVA 2

This backend uses libVLC to decode video and activate hardware decoding with DXVA 2. This feature is not guaranteed to work everywhere.


WMF

It is the default video backend of Windows, it means that if Windows Media Player can't read a video Kolor Eyes can't too.

Note that Windows 8 has native codecs which decode 4K video and so Kolor Eyes will be able to decode 4K video without installing any codec on Windows 8. It is not the same for Windows 7 (or previous Windows versions) which do not have native codecs to decode 4K video.


DirectShow

You will need to have codecs that use DirectShow filters like MainConcept codecs. If you have Autopano Video installed on your machine you also have MainConcept codecs installed.


Mac

There are three video backends available on Mac platform : VLC, AVF and Quick Time 7.

Note that AVF backend is only available on Mac Mountain Lion (10.8) or later.


VLC

This backend uses libVLC to decode video. You should never encounter errors with backend.

VLC on Mac supports video hardware decoding and so it gives the best video performances.


AVF

It is the default video backend of Mac, it means that if Quick Time Player can't read a video Kolor Eyes can't too.

We recommend you to use AVF because this backend allows Kolor Eyes to use video hardware decoding and so it gives the best video performances.


Quick Time 7

Legacy video backend of Mac.


Hardware decoding

Hardware decoding allows to decode a video more efficiently than software decoding.

So on the same computer, hardware decoding gives the opportunity to have a smooth video playback when software decoding failed (jerky playback).

The following table resumes, for each platform, the default video plugin and hardware decoding availability.

Mac 10.7 Mac 10.8 Mac 10.9 Mac 10.10 Windows 7 Windows 8 & 8.1
without Oculus Rift VLC AVF AVF AVF WMF WMF
with Oculus Rift Not supported VLC VLC VLC VLC VLC


Note : when using Oculus Rift on Windows, we are forced to use OpenGL graphics framework and so we loose hardware decoding with WMF. That is why VLC is the default when using Oculus Rift on Windows.

Image decoding

You can use Kolor Eyes to visualize your 360 pano whatever the pano size.

If the pano is too large, it will be downsized according to your graphic card capabilities.



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