Frame drop when playing RTP stream using SDP file
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Frame drop when playing RTP stream using SDP file
 
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Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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On Fr, 2016-05-06 at 11:16 +0530, Anuj Pahuja wrote:
> > On the receiver's side, I can play this stream properly using this > > pipeline: > > > > gst-launch-1.0 udpsrc address=224.1.1.1 port=5004 ! "application/x- > > rtp, media=(string)video, clock-rate=(int)90000, encoding- > > name=(string)RAW, sampling=(string)YCbCr-4:2:2, depth=(string)8, > > width=(string)640, height=(string)480, colorimetry=(string)BT601-5, > > payload=(int)96" ! rtpvrawdepay ! videoconvert ! autovideosink > > > Minor correction: > gst-launch-1.0 udpsrc address=224.1.1.1 port=5004 ! "application/x- > rtp, media=(string)video, clock-rate=(int)90000, encoding- > name=(string)RAW, sampling=(string)YCbCr-4:2:2, depth=(string)8, > width=(string)720, height=(string)576, colorimetry=(string)BT601-5, > payload=(int)96" ! rtpvrawdepay ! videoconvert ! autovideosink what exactly is the reason for the frame drops? Also note that sdpdemux is using an rtpbin, which especially includes an rtpjitterbuffer element. Does your manual pipeline fail in similar ways if you add an rtpjitterbuffer before the depayloader? -- Sebastian Dröge, Centricular Ltd · http://www.centricular.com _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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On Fr, 2016-05-06 at 12:13 +0530, Anuj Pahuja wrote:
> > > Also note that sdpdemux is using an rtpbin, which especially > > includes > > an rtpjitterbuffer element. Does your manual pipeline fail in > > similar > > ways if you add an rtpjitterbuffer before the depayloader? > I think that's the reason. Manual pipeline with rtpjitterbuffer gives > the same results as playing using sdpdemux. Is there any way around > it? If your stream does not work with the rtpjitterbuffer, then something's clearly wrong and that should be fixed. Especially for raw video streams it is important to have an rtpjitterbuffer there. So what exactly does not work? Do you get packet loss after the jitterbuffer, or even before? You will get a lot of useful debug output from rtpjitterbuffer and rtpbasedepayload here for finding the cause. -- Sebastian Dröge, Centricular Ltd · http://www.centricular.com _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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On Fr, 2016-05-06 at 15:31 +0530, Anuj Pahuja wrote:
> > So what exactly does not work? Do you get packet loss after the > > jitterbuffer, or even before? You will get a lot of useful debug > > output > > from rtpjitterbuffer and rtpbasedepayload here for finding the > > cause. > I'm not sure what's not working, Could you tell me how can I enable > additional debug output for rtpjitterbuffer and rtpvrawdepay? Is it > using --gst-debug=rtpjitterbuffer in the pipeline? Setting GST_DEBUG=3,rtpjitterbuffer:6,rtpbasedepayload:6 in the environment should give you something. > Also, I get a better result when I use sync=false with > rtpjitterbuffer. Then I get a result similar to the pipeline without > rtpjitterbuffer. That points at rtpjitterbuffer having problems producing correct timestamps for your stream. -- Sebastian Dröge, Centricular Ltd · http://www.centricular.com _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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On Mi, 2016-05-11 at 13:09 +0530, Anuj Pahuja wrote:
> I tried using a V4L2 stream instead of a custom appsrc. I'm still > facing the same issue (frame drop/video tearing) while using sdpdemux > or rtpjitterbuffer with my receiver's pipeline. No issue when > rtpjitterbuffer is not there. Here are the pipelines I'm using: > > Sender side: > gst-launch-1.0 v4l2src device=/dev/video0 ! videoscale ! videoconvert > ! video/x-raw, width=720, height=576, format=UYVY ! rtpvrawpay ! > udpsink host=239.192.1.6 port=5004 -v > > Receiver's side: > gst-launch-1.0 udpsrc address=239.192.1.6 port=5004 ! "application/x- > rtp, media=(string)video, clock-rate=(int)90000, encoding- > name=(string)RAW, sampling=(string)YCbCr-4:2:2, depth=(string)8, > width=(string)720, height=(string)576, colorimetry=(string)BT601-5, > payload=(int)96" ! rtpjitterbuffer ! rtpvrawdepay ! videoconvert ! > autovideosink > > As you said, there must be a problem in the stream if it isn't > working with rtpjitterbuffer. Could you suggest what might be the > possible issues on the sender's side here? videotestsrc ! "video/x-raw,width=720,height=576" ! ... ? The logs you get with GST_DEBUG=3,rtpjitterbufer:6 might also be useful. -- Sebastian Dröge, Centricular Ltd · http://www.centricular.com _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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Re: Frame drop when playing RTP stream using SDP file
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