[Live-devel] Recording an mp2 rtp stream for playback by Live555 media

[Mike Cravens]

Thanks for the specific suggestions, Ross. 

One question, though:  Why SimpleRTPSource vs. MPEG1or2VideoRTPSource? 

We don't yet have the VBRICK mpeg2 appliance in hand, but I believe that
it does put out mpeg2 encoded data, and may offer a multicast or unicast
stream option.  We should be able to find out more once we can command
it using their web or SNMP interfaces, and and can look on the wire.

It seems to have an option to do SAP, but i have heard that the VBRICK
SAP is somewhat proprietary and is only intended for other vbrick
devices.  Does this mean we will need to hand code a local sdp file for
each video source?

BTW, OpenRTSP does support a rich set of options which just about meet
our other requirements.

Thanks for the example programs and the tips on which ones apply to our
situation.


Regards,

Mike




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> Today's Topics:
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>    1. Re: Recording an mp2 rtp stream for playback by Live555 media
>       server (Ross Finlayson)
>    2. Re: Multicast session question (Yedidia Amit)
>    3. HTTP Tunnelling (Anita Rajan)
>    4. How can I stream g711(ulaw PCM) audio via RTP? There	is no
>       demo application for this. (srinivasa rao)
>    5. Re: How can I stream g711(ulaw PCM) audio via RTP? There is
>       no demo application for this. (Ross Finlayson)
>    6. problems with New FramedSource creation (anand meher)
>    7. Re: problems with New FramedSource creation (Ross Finlayson)
>    8. Re: problems with New FramedSource creation (anand meher)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 1 Dec 2008 17:05:49 -0800
> From: Ross Finlayson <finlayson at live555.com>
> Subject: Re: [Live-devel] Recording an mp2 rtp stream for playback by
> 	Live555 media server
> To: LIVE555 Streaming Media - development & use
> 	<live-devel at ns.live555.com>
> Message-ID: <f06240817c55a38b87154@[66.80.62.44]>
> Content-Type: text/plain; charset="us-ascii" ; format="flowed"
>
>   
>> Given video encoded as mpeg2 transported over RTP from a Vbrick 
>> appliance ( model 9110-4200), we need to record data as a series of 
>> mpege2 TS chapter files of fixed duration that may subsequently be 
>> played back using Live555 media server.  We hope to support trick 
>> mode, as well.
>>
>> Before realizing that the Vbrick mp2 appliance does not apparently 
>> support RTSP ( although their mpeg4 device does) we had thought to 
>> use OpenRTSP as a ( nearly complete) starting point for recording.
>>     
>
> If your server doesn't support RTSP, then there seems to be little 
> point in using "openRTSP" as a model for your client, because RTSP is 
> most of what "openRTSP" does.
>
> Instead, you can just use "testMPEG1or2VideoReceiver" as a model. 
> Just use a "SimpleRTPSource" instead of a "MPEG1or2VideoRTPSource". 
> See line 751 of "liveMedia/MediaSession.cpp" for an example of how to 
> use this.
>   

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