Using PortAudio gives errors in precompilation while works in REPL

[omlins]

In the REPL, using PortAudio and creating a stream work just fine and also the available devices seem to have been recognized without problems:

julia> using PortAudio

julia> PortAudioStream(1, 0; eltype=Int16, samplerate=44100.0, latency=0.001)
PortAudioStream{Int16}
  Samplerate: 44100.0Hz
  1 channel source: "default"

julia> PortAudio.devices()
22-element Vector{PortAudio.PortAudioDevice}:
 "C-Media USB Audio Device: - (hw:0,0)" 1→0
 "HDA Intel PCH: ALC285 Analog (hw:2,0)" 2→2
 "HDA Intel PCH: HDMI 0 (hw:2,3)" 0→8
 "HDA Intel PCH: HDMI 1 (hw:2,7)" 0→8
 "HDA Intel PCH: HDMI 2 (hw:2,8)" 0→8
 "HDA Intel PCH: HDMI 3 (hw:2,9)" 0→8
 "HDA Intel PCH: HDMI 4 (hw:2,10)" 0→8
 "HDA NVidia: HDMI 0 (hw:3,3)" 0→2
 "HDA NVidia: HDMI 1 (hw:3,7)" 0→8
 "HDA NVidia: HDMI 2 (hw:3,8)" 0→8
 ⋮
 "HDA NVidia: HDMI 6 (hw:3,12)" 0→8
 "sysdefault" 128→0
 "spdif" 1→0
 "samplerate" 128→0
 "speexrate" 128→0
 "pulse" 32→32
 "upmix" 8→0
 "vdownmix" 6→0
 "default" 32→32

However, when I add using PortAudio (and nothing else!) to a package, then it this package gives many errors in precompilation:

julia> using JustSayIt
[ Info: Precompiling JustSayIt [dc137d0a-f97d-424e-bedb-455a3ba6ee67]
ALSA lib pcm_dmix.c:1035:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib confmisc.c:1369:(snd_func_refer) Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:5111:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5599:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM hdmi
ALSA lib confmisc.c:1369:(snd_func_refer) Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:5111:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5599:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM hdmi
ALSA lib confmisc.c:1369:(snd_func_refer) Unable to find definition 'cards.USB-Audio.pcm.modem.0:CARD=0'
ALSA lib conf.c:5111:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5599:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline:CARD=0,DEV=0
ALSA lib confmisc.c:1369:(snd_func_refer) Unable to find definition 'cards.USB-Audio.pcm.modem.0:CARD=0'
ALSA lib conf.c:5111:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5599:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline:CARD=0,DEV=0
ALSA lib confmisc.c:1369:(snd_func_refer) Unable to find definition 'cards.USB-Audio.pcm.modem.0:CARD=0'
ALSA lib conf.c:5111:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5599:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM phoneline
ALSA lib confmisc.c:1369:(snd_func_refer) Unable to find definition 'cards.USB-Audio.pcm.modem.0:CARD=0'
ALSA lib conf.c:5111:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5599:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM phoneline
ALSA lib dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library libasound_module_pcm_jack.so (/home/omlins/.julia/artifacts/d587f48a6815c72dec4b083bf297caec7a8e3f4b/lib/alsa-lib/libasound_module_pcm_jack.so: cannot open shared object file: No such file or directory)
ALSA lib dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library libasound_module_pcm_jack.so (/home/omlins/.julia/artifacts/d587f48a6815c72dec4b083bf297caec7a8e3f4b/lib/alsa-lib/libasound_module_pcm_jack.so: cannot open shared object file: No such file or directory)
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_dmix.c:1035:(snd_pcm_dmix_open) unable to open slave

Thus, I wonder: should PortAudio.jl move some of these initializations from precompilation time to module load time (__init__())?

NOTE: OS info:

omlins@Omlin-Lenovo:~$ cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.3 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.3 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

[bramtayl]

Hi, thanks for the report. Those aren't errors per say, just ALSA messages about alsa trying to figure out your sound setup. We redirect them to the debug log during __init__. Ref

PortAudio.jl/src/PortAudio.jl

Line 111 in f6cd300

log = @capture_err handle_status(Pa_Initialize())

. It seems that's not working in some circumstances, but I'm not sure why.

[omlins]

@bramtayl, thanks a lot for your reply. I see - I also found the related issues on PortAudio... Might it be that

PortAudio.jl/src/PortAudio.jl

Line 20 in f6cd300

using libportaudio_jll: libportaudio

does already initialize some ALSA stuff and cause these error messages?

[bramtayl]

Hmm, no I don't think so. I'm guessing the issue is Pkg and error capturing don't work well together.