How to send a mp4 file with rtp without decoding and encoding

[Haiming Wang]

Hi all,
   After analysis I found the below pipeline1 always fail with:     streaming stopped, reason not-linked.while the pipeline2(remove the rtpbin)  works.   It's  really confusing.
Anyone can give me some suggestion?   Also is there any suggestions about how to analyze the "reason not-linked" issues?



1.        gst-launch-0.10 gstrtpbin name=rtpbin filesrc location=/Users/hamwang/logdir/3.mp4  ! qtdemux  name=demux    demux.video_00 !  rtph264pay ! rtpbin.send_rtp_sink_0    rtpbin.send_rtp_src_0 ! udpsink host=172.21.118.219 port=5006

2.     gst-launch-0.10 gstrtpbin name=rtpbin filesrc location=/Users/hamwang/logdir/3.mp4  ! qtdemux  name=demux    demux.video_00 !  rtph264pay !  udpsink host=172.21.118.219 port=5006




Thanks and Best RegardsHaiming Wang

From: whm_buaa at hotmail.com
To: gstreamer-devel at lists.freedesktop.org
Subject: RE: How to send a mp4 file with rtp  without decoding and encoding
Date: Mon, 14 Jul 2014 09:55:23 +0800




Hello friends,
    Anybody can give me some advice about this question?

Thanks and Best RegardsHaiming Wang

From: whm_buaa at hotmail.com
To: gstreamer-devel at lists.freedesktop.org
Subject: RE: How to send a mp4 file with rtp  without decoding and encoding
Date: Fri, 11 Jul 2014 15:01:23 +0800











Hi all,
   I want send a h264 video which is encapsulated in a mp4 file from my android mobile phone to my pC.
This mp4 file can be played by below command:
gst-launch-0.10 gstrtpbin name=rtpbin filesrc location=/Users/hamwang/logdir/3.mp4  ! qtdemux  name=demux    demux.video_00 ! ffdec_h264  ! ffmpegcolorspace !  autovideosink

it can also be sent through rtp by decoding and re-endcoding by below command:



gst-launch-0.10 -v gstrtpbin name=rtpbin filesrc location=./trunk/trunk/videoconf/linux-appsrc-example/3.mp4      ! qtdemux  name=demux    demux.video_00 ! ffdec_h264 !   queue  !  x264enc tune=zerolatency byte-stream=true bitrate=500 ! rtph264pay ! rtpbin.send_rtp_sink_0    rtpbin.send_rtp_src_0 ! udpsink host=172.21.118.219 port=5006

Since as we know , the video has already been encoded by h264 in the mp4 file, so I hope I can send it without decoding and re-encoding.  I used below command:
gst-launch-0.10 gstrtpbin name=rtpbin filesrc location=/Users/hamwang/logdir/3.mp4  ! qtdemux  name=demux    demux.video_00 !  rtph264pay ! rtpbin.send_rtp_sink_0    rtpbin.send_rtp_src_0 ! udpsink host=172.21.118.219 port=5006
but get below error:
 qtdemux.c(3941): gst_qtdemux_loop (): /GstPipeline:pipeline0/GstQTDemux:demux:streaming stopped, reason not-linked


Any friend can give me some advice?
Thanks and Regards,Haiming Wang

 		 	   		   		 	   		   		 	   		  

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