Combining an audio and video stream using gstreamer [closed] - streaming

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I am streaming an mp4(mpeg-4) file from one device to another using gstreamer over RTP stream. Basically I am splitting up the mp4 file into its audio and video file and then sending it all to the other device where it gets streamed. Now, I want to save the mp4 file to disk in the other device, but my problem is that I am able to save the audio and video files seperately and it cannot be played individually.
I am confused on how to combine both the audio and video rtp streams to form my mp4 file back and save it to a file in the other device.
Here are the command line codes :
Sender(Server)
gst-launch-0.10 -v filesrc location=/home/kuber/Desktop/sample.mp4 \
! qtdemux name=d \
! queue \
! rtpmp4vpay \
! udpsink port=5000 \
d. \
! queue \
! rtpmp4gpay \
! udpsink port=5002
Reciever(client)
gst-launch-0.10 udpsrc port=5000 caps = "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)243, config=(string)000001b0f3000001b50ee040c0cf0000010000000120008440fa282fa0f0a21f, payload=(int)96, ssrc=(uint)4291479415, clock-base=(uint)4002140493, seqnum-base=(uint)57180" \
! rtpmp4vdepay \
! ffdec_mpeg4 \
! xvimagesink sync=false \
udpsrc port=5002 caps="application/x-rtp, media=(string)audio, clock-rate=(int)32000, encoding-name=(string)MPEG4-GENERIC, encoding-params=(string)2, streamtype=(string)5, profile-level-id=(string)2, mode=(string)AAC-hbr, config=(string)1290, sizelength=(string)13, indexlength=(string)3, indexdeltalength=(string)3, payload=(int)96, ssrc=(uint)501975200, clock-base=(uint)4248495069, seqnum-base=(uint)37039"\
! rtpmp4gdepay \
! faad \
! alsasink sync=false

Answer 1

You can try the following pipeline to mux audio and video into a single file.
Pipeline for this is as follows:
gst-launch-0.10 udpsrc port=5000 caps = "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)243, config=(string)000001b0f3000001b50ee040c0cf0000010000000120008440fa282fa0f0a21f, payload=(int)96, ssrc=(uint)4291479415, clock-base=(uint)4002140493, seqnum-base=(uint)57180" \
! rtpmp4vdepay \
! ffdec_mpeg4 \
! mux. \
udpsrc port=5002 caps="application/x-rtp, media=(string)audio, clock-rate=(int)32000, encoding-name=(string)MPEG4-GENERIC, encoding-params=(string)2, streamtype=(string)5, profile-level-id=(string)2, mode=(string)AAC-hbr, config=(string)1290, sizelength=(string)13, indexlength=(string)3, indexdeltalength=(string)3, payload=(int)96, ssrc=(uint)501975200, clock-base=(uint)4248495069, seqnum-base=(uint)37039"\
! rtpmp4gdepay \
! faad \
! mux.
matroskamux name=mux
! filesink location=video.mp4