X2Go Bug report logs - #1055
H264 videos working badly

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Message #5 received at submit@bugs.x2go.org (full text, mbox, reply):

From: Walid MOGHRABI <w.moghrabi@servicemagic.eu>

To: submit@bugs.x2go.org

Subject: H264 videos working badly

Date: Thu, 7 Jul 2016 16:10:51 +0200 (CEST)

Package: x2goserver 
Version: 4.0.1.19 

I encounter a strange problem when playing videos (especially H264 ones) in Firefox or video players such as VLC, Totem, Parole, ....
Videos just don't start as if there was some sort of buffer overrun with Firefox but strangely, sometimes it works (but most of the time, it freezes).
With Parole, videos play fine but sounds begins at first then silence while the video is playing correctly.

I would be thinking that this is a normal problem with remote desktop unless I tried with Chrome/Chromium where there, videos are playing just perfectly.

I know X2Go is not meant to be used for remote video rendering (well, not for now anyway) but this is for rare uses on a local network with high bandwidth.
What I don't understand is why it is working badly with most of the players I tried or Firefox while it works very well with Chrome/Chromium.

Is there something that can be done to make videos play fine (with remote display limitations in mind of course) with Firefox and/or video players such as VLC/Totem/Parole ?

Test conditions :
===============
    * Server side : x2goserver 4.0.1.19 running on Ubuntu 16.04 with Mate Desktop
    * Client side : x2goclient 4.0.5.1 in MATE desktop mode with WAN/16m-jpeg settings (tried with other settings but this is what gives me the best results)
    * Tested softwares : 
        - Firefox 47 (working randomly with both local files and Youtube)
        - Chromium (Working perfectly with both local files and Youtube)
        - VLC (working badly)
        - Totem (video ok but no sound)
        - Parole (Video OK, sound starting then silence)
    * Tested medias : videos on Youtube (for browser tests), mkv video with H264 encoding for players and browsers


Best regards,

Walid Moghrabi
	
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Message #10 received at 1055@bugs.x2go.org (full text, mbox, reply):

From: Ulrich Sibiller <ulrich.sibiller@gmail.com>

To: Walid MOGHRABI <w.moghrabi@servicemagic.eu>, 1055@bugs.x2go.org

Subject: Re: [X2Go-Dev] Bug#1055: H264 videos working badly

Date: Sun, 21 Aug 2016 11:00:00 +0200

I am curious if setting this enviroment variable changes the firefox
behaviour in this case:

MOZ_DISABLE_IMAGE_OPTIMIZE=1

Message #15 received at 1055@bugs.x2go.org (full text, mbox, reply):

From: Stefan Baur <X2Go-ML-1@baur-itcs.de>

To: 1055@bugs.x2go.org

Subject: Bug#1055: H264 videos working badly

Date: Sun, 21 Aug 2016 11:32:20 +0200

[Message part 1 (text/plain, inline)]

> I am curious if setting this enviroment variable changes the firefox
> behaviour in this case:
> 
> MOZ_DISABLE_IMAGE_OPTIMIZE=1

Sadly, it doesn't change a thing.

-Stefan
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