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

[malc]

On Sat, 14 Jul 2012, agraham wrote:

> On 07/14/2012 03:17 AM, agraham wrote:
> > Hi Guys,
> > 
> > I've written a VNC client that implements the VNC QEMU Audio extensions.
> > Using QEMU 0.13 it works very very for remote sound, however after
> > upgrading to QEMU 1.1.0 the audio stream contains only bytes of zeros,
> > so this results in no sound on the client.
> > 
> > It is almost like the stream is muted by sending 0 bytes instead of the
> > actual data.
> > 
> > 0: VNC: :SOUND: AudioOn
> > 1: VNC: :SOUND: Received _QEMU_Audio_Server_Message: Operation: 1
> > 2: VNC: :SOUND: Received _QEMU_Audio_Start
> > 3: VNC: :SOUND: Received _QEMU_Audio_Server_Message: Operation: 2
> > 4: VNC: :SOUND: Received _QEMU_Audio_Data 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> > 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> > 
> > Is there something new that needs to be done in order for the sound to
> > be pushed out, like some unmute mechanism?
> > 
> > I rebuilt QEMU 0.15.1 and sound worked but was very choppy, I think due
> > to some timer injection changes - but that's another issue.
> > 
> > Thanks in advance.
> > 
> > Albert
> 
> 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.

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