RE : Re: lag/freeze in streaming H264 or RAW from udpsrc on Windows

[manuk]

Hi Sébastian,

In fact with client pipeline in Windows, the playing of the stream is too fast. The framerate is not take account. 

I dont understand why i need to disable the synchronization because it works perferctly with the same pipeline in Ubuntu. 

I think there is a strange behaviour about the timestamping or synchronization troubles in gstreamer in Windows.

The cpu rate of the client is low, the video is often blocked as if the timestamping is corrupted.

Also in reading the forum, it seems that this problem is known but never really resolved.

-------- Message d'origine --------

De : "Sebastian Dröge-3 [via GStreamer-devel]" <[hidden email]>

Date : 10/09/2016 10:29 (GMT+01:00)

À : manuk <[hidden email]>

Objet : Re: lag/freeze in streaming H264 or RAW from udpsrc on Windows

On Fri, 2016-09-09 at 14:20 -0700, manuk wrote:
> 
> sync=true         => freeze and lags appear

What do you mean with freeze and lag, what exactly happens? You should
in any case add a queue after the udpsrc (or an rtpjitterbuffer), and
maybe also want to increase the buffer-size property on udpsrc.

> It seems there some troubles about the synchronisation, in my case I
> MUST keep the sync property set to true on client side and server
> side.

You should do that any way :) sync=false in these cases is not a
solution for anything.

--
Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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[Sebastian Dröge-3]

On Sa, 2016-09-10 at 08:22 -0700, manuk wrote:
> Hi Sébastian,
>
> In fact with client pipeline in Windows, the playing of the stream is too fast. The framerate is not take account. 
> I dont understand why i need to disable the synchronization because it works perferctly with the same pipeline in Ubuntu. 
> I think there is a strange behaviour about the timestamping or synchronization troubles in gstreamer in Windows.
> The cpu rate of the client is low, the video is often blocked as if the timestamping is corrupted.
> Also in reading the forum, it seems that this problem is known but never really resolved.

Did you try increasing the buffer-size and adding more queues? Please
check if there is packet loss, e.g. from the debug logs of the
rtpjitterbuffer.

--
Sebastian Dröge, Centricular Ltd · http://www.centricular.com

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