Re: [Linphone-users] ringtone playback sounds crackling on beagleboard xm

[Gautier Pelloux-Prayer]

Hi,

Could you try a master version please? mfortini on Github submitted a patch for 
this, which was integrated 08th January:

a4ad76a 2016-01-08 18:25:32 +0100 Matteo Fortini          pulseaudio.c: fix 
output stuttering due to underflows

Regards,

Gautier Pelloux-Prayer
Software Engineer @ Belledonne Communications

> On 21 Jan 2016, at 18:11, Christian Spielberger <address@hidden> wrote:
> 
> Hi,
> 
> there are a lot of buffer underflows during ringtone playing.
> 
> ortp-warning-pulseaudio: there were 14 underflows and 0 overflows over last 5 
> seconds
> 
> And this sounds crackling.
> 
> I had a patch for older linphone version, but it was awful. The patch belongs 
> to
> mediastreamer. 
> 
> The idea was:
> In MSFilter pulseaudio.c remember the pa_stream_writable_size somewhere, such
> that the msfileplayer.c MSFilter can use this information for reading next
> samples.
> 
> I did not know where to pass this information backward, so I stored it in the
> MSTicker by adding a new field "int reqsamples". As I told, awful.
> 
> It seems that this issue is also in linphone 3.9.1.
> 
> regards,
> Christian.
> 
> 
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