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[Bug 1859916] Re: coreaudio not working on MacOS
From: |
Mark Cave-Ayland |
Subject: |
[Bug 1859916] Re: coreaudio not working on MacOS |
Date: |
Thu, 16 Jan 2020 09:31:37 -0000 |
First thing to check is whether you have any other audio applications
installed, since there seems to be a long running issue whereby other
applications can prevent QEMU from being able to output audio. See
https://www.emaculation.com/forum/viewtopic.php?f=34&t=8848&sid=1e5fab3a08347beb3b344be0f953221e&start=150#p60978
for a discussion on this.
Secondly does QEMU 4.1 audio work? There has been a report on list that
there is an issue caused by conversion to the new backend audio APIs in
4.2 here: https://lists.gnu.org/archive/html/qemu-
devel/2020-01/msg02142.html.
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https://bugs.launchpad.net/bugs/1859916
Title:
coreaudio not working on MacOS
Status in QEMU:
New
Bug description:
OS: MacOS Catalina 10.15.2
qemu-system-x86_64 -version
QEMU emulator version 4.2.50 (v4.2.0-13-g084a398bf8-dirty)
Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers
Qemu install via brew: brew install qemu
---
I use following to install Ubuntu 18.04 desktop successfully:-
IMG_CD=$HOME/Downloads/iso/ubuntu-18.04.3-desktop-amd64.iso
IMG_FILE=$HOME/code/vm/qemu/u64d01.qcow2
MAC_ADDR=xx:xx:xx:xx:xx:xx
qemu-system-x86_64 \
-no-user-config -nodefaults \
-show-cursor \
-name u64d01 \
-M q35,accel=hvf,usb=off,vmport=off \
-cpu host -smp 4 -m 2048 \
-overcommit mem-lock=off \
-overcommit cpu-pm=off \
-rtc base=utc,clock=host \
\
-device virtio-tablet-pci \
-device virtio-vga \
\
-device virtio-blk-pci,drive=ssd1 \
-drive id=ssd1,file=$IMG_FILE,if=none,format=qcow2 \
\
-device virtio-net-pci,netdev=nic1,mac=$MAC_ADDR \
-netdev user,id=nic1,ipv4=on,ipv6=on,hostname=u64d01,hostfwd=tcp::2222-:22 \
\
-device ich9-intel-hda,id=snd,msi=on \
-device hda-output,id=snd-codec0,bus=snd.0,cad=0,audiodev=snd0 \
-audiodev coreaudio,id=snd0,out.buffer-count=10000 \
\
-cdrom $IMG_CD
Removing the last -cdrom line Ubuntu desktop boot up and everything
work perfectly except the audio.
I test with wav audio driver by replacing the -audiodev line as
follow, which save the client audio to a wave file:
-audiodev wav,id=snd0,path=$HOME/qemu.wav
I start the vm, open firefox, play a few video, then shutdown the vm.
Then I can play the qemu.wav file and all the audio was recorded
there.
However, I can't get audio directly with coreaudio.
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