On Monday, March 13, 2023 8:06:15 PM CET Dorinda Bassey wrote:
> >
> > Are you sure about sizeof(n_bytes) here? That's 4. ;-)
> >
> my bad!
>
> >
> > Volker's point was that "silence" is the center of the wave range. With
> > signed
> > range that's zero, yes, but with unsigned range that's
Am 13.03.23 um 14:11 schrieb Dorinda Bassey:
Hi Volker,
To hear this,
start QEMU with qemu-system-x86_64 -machine pcspk-audiodev=audio0
-device ich9-intel-hda -device hda-duplex,audiodev=audio0 -audiodev
pipewire,id=audio0,out.mixing-engine=off ...
I hear the clipped audio
>
> Are you sure about sizeof(n_bytes) here? That's 4. ;-)
>
my bad!
>
> Volker's point was that "silence" is the center of the wave range. With
> signed
> range that's zero, yes, but with unsigned range that's 2^(bitdepth) / 2.
>
> So you need to memset() the correct value to generate "silence".
On Monday, March 13, 2023 2:11:11 PM CET Dorinda Bassey wrote:
> Hi Volker,
>
>
> > To hear this,
> > start QEMU with qemu-system-x86_64 -machine pcspk-audiodev=audio0
> > -device ich9-intel-hda -device hda-duplex,audiodev=audio0 -audiodev
> > pipewire,id=audio0,out.mixing-engine=off ...
> >
> I
Hi Volker,
> To hear this,
> start QEMU with qemu-system-x86_64 -machine pcspk-audiodev=audio0
> -device ich9-intel-hda -device hda-duplex,audiodev=audio0 -audiodev
> pipewire,id=audio0,out.mixing-engine=off ...
>
I hear the clipped audio stream with these options. IMO, I don't think
memset is
+/* output data processing function to read stuffs from the buffer */
+static void
+playback_on_process(void *data)
+{
+PWVoice *v = (PWVoice *) data;
+void *p;
+struct pw_buffer *b;
+struct spa_buffer *buf;
+uint32_t n_frames, req, index, n_bytes;
+int32_t avail;
+
+
Hi Dorinda,
I've started to write down my suggestions and comments. After more than
one page of text, I think that without sample code, the text is not very
understandable. Therefore I will write three mails.
In this mail I describe the problem with the QEMU Pipewire audio
backend. My next
Hi Marc-André,
Thank you for your feedback.
Given that we have only one loop, I would set the thread name to NULL,
> (which will use "pw-thread-loop" by default)
>
I think it's preferable to be explicit and clear about the thread name.
It's not clear to me the reason being that it's only one
Am 08.03.23 um 11:39 schrieb Marc-André Lureau:
Volker, Wim, it would be nice if you could review/comment too!
thanks
Hi,
last weekend I replaced pulseaudio with pipewire on my host computer and
tested the QEMU pipewire backend. It doesn't work well on my computer,
but with a few changes
Hi
On Mon, Mar 6, 2023 at 9:11 PM Dorinda Bassey wrote:
>
> This commit adds a new audiodev backend to allow QEMU to use Pipewire as
> both an audio sink and source. This backend is available on most systems
>
> Add Pipewire entry points for QEMU Pipewire audio backend
> Add wrappers for QEMU
Hi Marc-André,
Do you mind summarizing your review on the buffering section, and leave
comments so i can address everything once and for all? This will help
reduce the number of versions that needs to be done.
Thanks,
Dorinda.
On Tue, Mar 7, 2023 at 3:41 PM Marc-André Lureau
wrote:
> Hi
Hi Dorinda
On Mon, Mar 6, 2023 at 9:11 PM Dorinda Bassey wrote:
>
> This commit adds a new audiodev backend to allow QEMU to use Pipewire as
> both an audio sink and source. This backend is available on most systems
>
> Add Pipewire entry points for QEMU Pipewire audio backend
> Add wrappers for
This commit adds a new audiodev backend to allow QEMU to use Pipewire as
both an audio sink and source. This backend is available on most systems
Add Pipewire entry points for QEMU Pipewire audio backend
Add wrappers for QEMU Pipewire audio backend in qpw_pcm_ops()
qpw_write function returns the
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