CODEWITHSUNDEEP
linuxffmpegh.264vlc
sjd
sjd

Reputation: 21

How to retrieve H263/H264 data from a pcap file.

I have tried tools like videosnarf that takes a pcap file as input and creates a raw .h264 file , which could be later encoded with ffmpeg , and finally can be played with vlc player. But videosnarf can only handle h264 data.

I'm not able to find a similar tool that can dump h263 data from a pcap file. I tried to decode h263 stream from wireshark but I have had no luck so far.

I can program in perl/python but I don't know what exact steps to follow to retrieve h263 raw data from a pcap file as I haven't played with pcap capture files before.

Upvotes: 2

Views: 6123

Answers (1)

newfront
newfront

Reputation: 137

sjd, You can try setting up a sniffer using Twisted Python library (Twisted) this would allow you to capture the raw data coming in over your network as long as you can tell Twisted what port to listen to (or listen all), and where to dump the file to, etc and then do something with that new file (like send it into ffmpeg to test saving to .mov).

You would have to generate the .sdp file for ffmpeg, so unless you automate that step of the process, it is really annoying. I am currently working on the automation portion but am struggling just as much.

I'm using EventMachine for Ruby with FFMPEG, and .sdp from SIP.

Hope this helps a little.

Upvotes: 1

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