Re: [Qemu-devel] QEMU VNC Audio - All audio data null

[malc]

On Sat, 14 Jul 2012, agraham wrote:

> On 07/14/2012 06:20 PM, malc wrote:
> > On Sat, 14 Jul 2012, agraham wrote:
> > 
> > > On 07/14/2012 01:55 PM, agraham wrote:
> > > > On 07/14/2012 11:44 AM, malc wrote:
> > > > > On Sat, 14 Jul 2012, agraham wrote:
> > 
> > [..snip.]]
> > 
> > > > > > I've just rebuilt QEMU 1.0 (and all of its dependencies) and it has
> > > > > > the same
> > > > > > problem (zero bytes), so some incompatibility was introduced between
> > > > > > 0.15.1
> > > > > > and 1.1.0.
> > > > > > 
> > > > > > Anyone got any clues ?
> > > > > 
> > > > > Please try to bisect the issue.
> > > > > 
> > > > 
> > 
> > [..snip..]
> > 
> > > 
> > > I cannot seem to get any further trying to find the source of this issue,
> > > except to say that QEMU Audio over VNC used to work in QEMU 0.13 until
> > > about
> > > QEMU 15.1 then it appears to have stopped working as described above.
> > 
> > As i said, try bisecting, doesn't involce too many brainwaves only raw
> > machine power.
> 
> Well, the problem is I'm rebuilding from Fedora spec file and that contains
> about 122 patches very many relating to spice that could cause the problem and
> it's in one of these that the bug may be introduced.

Sorry, but i do not have Fedora and if you insist on using patched 
version do talk to Fedora people.

> 
> > FWIW i just built a fresh checkout and it works for me with my own
> > client...
> 
> Which Client are you using?

http://repo.or.cz/w/qemu-vcap.git

> 
> Are you sure you're not using spice protocol?

Yes.

> 
> I've just rebuilt qemu package from:
> http://koji.fedoraproject.org/koji/buildinfo?buildID=329768
> 
> This is the latest Fedora 17 Package which builds qemu-kvm-1.1.0.tar.gz + a
> bunch of patches.
> 
> The only patch I've included is:
> 0001-kvm-Enable-use-of-kvm_irqchip_in_kernel-in-hwlib-cod.patch, because it
> will not compile without that patch. So it should pretty much match stock
> 1.1.0
> 
> I can confirm that the QEMU VNC Audio still does _not_ work and I get the
> exact same results, i.e. when I read the sample format data from the socket it
> contains the right amount of data, but the data contains zeros bytes, this
> results in silence.
> 
> Also I found this:
> http://www.digipedia.pl/usenet/thread/19179/2346/#post2351
> 
> The QEMU version they refer to is Fedora 16 which contains 0.15.x, which
> confirms my own findings as stated above.

Get a vanilla git version and try to reproduce if it's reproducible -
bisect, if not try to seek help through Fedora channels.

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