[Asterisk-video] mp4save(): different audio and video lengths

Jose M. Recio josemrecio at gmail.com
Tue Mar 18 14:25:41 CDT 2008


Happy to help, but my knowledge of the asterisk internal API and data
structures is quite limited.

I am working first on fixing RTP (easy to check with a player) and then
moving to the mp4.

I have managed to detect directly in app_h324m when the handset is in
silence detection mode, and can insert silence audio frames. Those frames
are routed OK inside asterisk and sent by RTP.

The problem I have is that the insertion shouldn't be done at once, but one
frame every 20msecs. Can anybody help about the ast_frame field that should
be filled to schedule frame sending at the proper time? Sergio mentioned
"delivery" ... is that the proper one?

JM


-----Mensaje original-----
De: asterisk-video-bounces at lists.digium.com
[mailto:asterisk-video-bounces at lists.digium.com] En nombre de Michael
(qq12345)
Enviado el: martes, 18 de marzo de 2008 15:16
Para: asterisk-video at lists.digium.com
Asunto: Re: [Asterisk-video] mp4save(): different audio and video lengths

Hi,

sounds like an channel bundling problem on behalf of your network operator.
Did it function before with BRI ISDN?
What happens, if you use BRI ISDN and PRI ISDN?

We had a Pbx-switch in the line: BRI ISDN - Pbx - Asterisk.
Then it showed up, that the Pbx was not able to do channel bundling,
necessary for Videocalls.

Perhaps it is new to your operator that someone wants to make channel
bundling?

Even this is not a solution, perhaps it helps, Michael
 

> -----Original Message-----
> From: asterisk-video-bounces at lists.digium.com
> [mailto:asterisk-video-bounces at lists.digium.com] On Behalf Of Sergio 
> Garcia Murillo
> Sent: Tuesday, March 18, 2008 2:52 PM
> To: asterisk-video at lists.digium.com
> Subject: Re: [Asterisk-video] mp4save(): different audio and video 
> lengths
> 
> I'm using a conceptronic hfc card. I started with misdn channel driver 
> and then switched to bristuff as I'm more comfortable with q931 pri 
> debug on it.
> Yes, audio calls work, outgoing videocalls work and dialing out to 
> itrself works so it seems that the problem is related to the 3g 
> mobile<->isdn switch in the operator network that is causing the 
> problems.
> The funny thing is that I can dial the on line demo in international 
> numbers without problems with the same mobiles.
> This is getting me crazy...
> 
> Best regards
> Sergio
> 
> ----- Original Message -----
> From: Klaus Darilion [mailto:klaus.mailinglists at pernau.at]
> To: asterisk-video at lists.digium.com
> Sent: Tue, 18 Mar 2008 12:43:58 +0100
> Subject: Re: [Asterisk-video] mp4save(): different audio and video 
> lengths
> 
> 
> 
> Sergio Garcia Murillo schrieb:
> 
> > I'm still fighting with my ISDN line.. I can make outgoing
> calls but
> > no q931 is recived at all in incoming ones (has anyone have
> a similar
> > problem??)  :(
> 
> Does incoming audio call work?
> 
> What kind of ISDN channel technology/hardware do you use?
> 
> lg
> klaus
> 
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