On 9/19/19 3:36 AM, Gerd Hoffmann wrote: > From: Kővágó, Zoltán <dirty.ice...@gmail.com> > > This will allow us to disable mixeng when we use a decent backend. > > Disabling mixeng have a few advantages: > * we no longer convert the audio output from one format to another, when > the underlying audio system would just convert it to a third format. > We no longer convert, only the underlying system, when needed. > * the underlying system probably has better resampling and sample format > converting methods anyway... > * we may support formats that the mixeng currently does not support (S24 > or float samples, more than two channels) > * when using an audio server (like pulseaudio) different sound card > outputs will show up as separate streams, even if we use only one > backend > > Disadvantages: > * audio capturing no longer works (wavcapture, and vnc audio extension) > * some backends only support a single playback stream or very picky > about the audio format. In this case we can't disable mixeng. > > However mixeng is not removed, only made optional, so this shouldn't be > a big concern. >
> +++ b/qemu-options.hx
> @@ -433,6 +433,7 @@ DEF("audiodev", HAS_ARG, QEMU_OPTION_audiodev,
> " specifies the audio backend to use\n"
> " id= identifier of the backend\n"
> " timer-period= timer period in microseconds\n"
> + " in|out.mixing-engineeng= use mixing engine to mix
> streams inside QEMU\n"
s/engineeng/engine/
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
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