Re: [Linphone-developers] sound card block size different.

[meng hongling]

and I found another problem,my embedded board only support stereo format.so 
it send 100 rtp
packets per second while the other side of the call sends 50 packets.so the 
sound is distorted.then what is the right way to work out this problem,add 
a sound driver supporting
mono sampling or linphone support stereo sample?but I found 
Mesage: Opening sound card[/dev/dsp]in playback mode with 
stereo=0,rate=8000,bits=16,
may I set stereo=1 to fit my device?


> From: Kosta Welke <address@hidden>
> To: address@hidden
> Subject: Re: [Linphone-developers] sound card block size different.
> Date: Wed, 08 Mar 2006 21:25:57 +0100
>
> Simon Morlat wrote:
> > Yes, this big 8192 size is the reason of the sound delay, that may 
> > also cause echo and feedback.
>
> Its due to the core_api/linphonecore.c, line 1346. By removing this
> check, I was able to playback sound perfectly. It seems my system 
> simply
> lies about its blocksize.
>
> Moreover, it seems that on my embedded system, the timestamp 
> generation
> is broken. Attached is a patch that works flawlessly on my system, 
> while
> the default behavior is broken. However, I didnt try it on my PC, 
> yet.
> If you are interested in this patch, please let me know, I can make 
> a
> diff against CVS, do a command line switch, or something like that.
>
> HTH,
> Kosta


> << sendts.diff >>


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