Wireshark-users: Re: [Wireshark-users] h264 rtp depacketisation

From: Naresh Samiappan <nsamiapp@xxxxxxxxx>
Date: Wed, 13 May 2009 11:45:34 -0700
Hi,

> I have extracted the h264 payload
How did you do that?

I have written c program using the winpcap library and extracted the only
h264 video rtp payload and stored in a seprate file as test.264.

The extracted test.264 if I play using the ffmpeg(player for the 264) I am
unable to play.

Is that enough to extract the only h264 rtp payload from the ip packets and
saved it in to file and put required header on it or anything else I am
missing ? please let me know.

Regards
naresh
 




-----Original Message-----
From: Anders Broman [mailto:a.broman@xxxxxxxxx] 
Sent: Monday, May 11, 2009 11:49 AM
To: nsamiapp@xxxxxxxxx; 'Community support list for Wireshark'
Subject: SV: h264 rtp depacketisation

Hi,
It’s better to ask on the mailing lists than writing me personally.
> I have extracted the h264 payload
How did you do that?

>Using the ffmpeg if I try to decode it is giving the MV errors.
I don't know what ffmpeg is, could it be that the H264 RTP header is
included in the file or that the start code(s) are missing?
Regards
Anders

________________________________________
Från: Naresh Samiappan [mailto:nsamiapp@xxxxxxxxx] 
Skickat: den 11 maj 2009 00:06
Till: a.broman@xxxxxxxxx
Ämne: h264 rtp depacketisation

Hi ,

I am new to the woreshark and h264 .I have some quires regarding the h264 de
packetisation am using wireshark to capture the  rtp payload which contains
h264 data I have extracted the h264 payload and writing in to file. Using
the ffmpeg if I try to decode it is giving the MV errors.

Can you please let me know the process to extract the h264 stream from the
rtp?
Regards
Naresh