How to playback rtp dump saved using StartRtpDump?

[Paul Kapustin]

I am saving RTP dump using StartRtpDump: http://www.webrtc.org/reference/webrtc-internals/viertp_rtcp

How to play it back?
I tried:

1) rtpplay it to a port, creating SDP and using ffplay. 

ffplay would not play it (while it plays another VP8-based rtp just fine).

2) gstreamer pipeline to convert it to avi. 

Here is the pipeline I am using

gst-launch -q filesrc location=$1 ! pcapparse  ! "application/x-rtp, payload=116" ! rtpvp8depay ! vp8dec ! decodebin ! videorate ! videoscale ! "video/x-raw, width=320, height=240, framerate=(fraction)30/1" ! x264enc ! queue ! qtmux name=mux ! filesink location=$3

( I checked payload type, seems to be 116.

Also, as long as pcapparse expects libpcap format, I first rtpplay the dump, and grab it again using wireshark)

This pipeline works fine if I use my own rtp dump (created by a combination of ffmpeg streaming my own VP8 .webm to a port and rtpdump utility grabbing it).

But it does not work with dumps from libjingle's StartRtpDump: 

I get "warning: Received invalid RTP payload, dropping", and gst-launch produces empty output.

Any comments on how to play back this rtp dump, or other way to record/re-stream video?

[Dustin Oprea]

Were you able to get this working?

Dustin

 

[Paul Kapustin]

Nope...

I came somewhat further (but still not very far) with AviRecorder.

[Justin Uberti]

Are you sure that the dump is unencrypted? Typically you will need to decrypt the received SRTP before you can load it up in another tool.

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