Video stream delay - Urgent

[Vincenzo Bono]

I would check NTP settings on the camera side as well. The camera web page will probably use a custom renderer, with a custom protocol (or custom adaptations).

You may try to connect to the camera with VLC and run the same test, to restrict the scope of your investigations.

Vincenzo

Il giorno 28/08/18, 20:55 "gstreamer-devel per conto di Olivier Crête" <gstreamer-devel-bounces at lists.freedesktop.org per conto di olivier.crete at collabora.com> ha scritto:

    Hi,
    
    You may want to set buffer-mode=slave on rtspsrc, in case the auto
    doesn't realize that it's a live stream for some reason. In theory,
    GStreamer should adapt to the sender clock and the delay should be
    constant. But it's also possible you hitting a bug somewhere and since
    it takes so long to reproduce, it would be long to fix...
    
    Olivier
    
    
    On Tue, 2018-08-28 at 07:52 -0500, Itk wrote:
    > Hi All,
    > 
    > I'm using GStreamer 1.8.3 for streaming video from Hikvision IP
    > camera
    > through RTSP.
    > My pipe is as follows: 
    > "rtspsrc location=%s protocols=%s user-agent=%s ! rtph264depay !
    > avdec_h264
    > ! videoscale ! videorate drop-only=1 ! video/x-raw,framerate=%d/1 !
    > videoconvert ! appsink name=%s"
    > 
    > ** %s - initialized with relevant strings...
    > 
    > I've noticed that there is a delay of ~1 seconds per 24 hours (I
    > compared
    > the GStreamer's video to the live video of the camera web page),
    > after few
    > days, the delay is quite significant.
    > 
    > Can you please advise how to overcome this issue. (ntp-sync? or
    > something
    > else)
    > 
    > I've tried to pull video from another camera (Axis), and it works
    > well with
    > quite constant delay (~2-3 seconds) for 10 days.
    > 
    > Thanks in advance,
    > Itk
    > 
    > 
    > 
    > 
    > --
    > Sent from: http://gstreamer-devel.966125.n4.nabble.com/
    > _______________________________________________
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    -- 
    Olivier Crête
    olivier.crete at collabora.com
    
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