Disabling synchronization in udpsink for reverse playback

[sam shmayev]

Windows:
gst-launch-0.10 version 0.10.31
GStreamer 0.10.31

Ubuntu:
gst-launch-0.10 version 0.10.36
GStreamer 0.10.36
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------

I just want to play rtsp stream from IP camera with audio and video.
*On Windows it works with the following syntax (but I don't need Windows)*

// using playbin2
gst-launch playbin2 uri=rtsp://
administrator:123123 at 192.168.1.170:554/nphMpeg4/g726-640x480 -vvv

// using decodebin2 (*full freeze on Ubuntu*)
gst-launch rtspsrc location=rtsp://
administrator:123123 at 192.168.1.253:554/nphMpeg4/g726-640x480 latency=0
name=demux demux. ! application/x-rtp,media=audio ! queue2 ! decodebin2 !
audioresample ! autoaudiosink demux. ! application/x-rtp,media=video !
queue2 ! decodebin2 ! ffmpegcolorspace ! autovideosink -vvv


Attachments contain debug info from Ubuntu.

Thank you.

On Thu, Sep 27, 2012 at 1:40 PM, Krause, Mathias <Mathias.Krause at xse.de>wrote:

> Hi,
>
> I don't exactly know, what you're trying to do. But as far as I can say:
>
> If you turn the sync option off, that means, that udpsink does sent the
> data through UDP as fast as possible, instead of keep sending the data in
> sync with the own clock. That means, that you get a lot of traffic, if the
> source provides enough data. For a live source, you may disable the sync,
> but I don't exactly understand, what you're trying to archive with that.
>
> Regards,
> Mathias
>
>
>
>
> From: gstreamer-devel-bounces+mathias.krause=xse.de at lists.freedesktop.org[mailto:
> gstreamer-devel-bounces+mathias.krause=xse.de at lists.freedesktop.org] On
> Behalf Of Muzzu Daniela
> Sent: Friday, September 21, 2012 10:46 AM
> To: gstreamer-devel at lists.freedesktop.org
> Subject: Disabling synchronization in udpsink for reverse playback
>
> Hi,
>
> I have a question related to the following bug (marked as INVALID), where
> it was proposed to disable sync in udpsink for live streams:
> https://bugzilla.gnome.org/show_bug.cgi?id=665435
>
> It has been replied that sync should be set to TRUE in all cases.
> But, what about reverse playback? The server has to send chunks in reverse
> order, with a non-regular increase of timestamps. Does it make sense to set
> sync property to FALSE in this case?
>
> Thanks,
> Daniela
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>



-- 
*S.Shmayev*
*
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