Dear Sitech,
May I assume that if you reached that step, it is that you solved or
worked around the "malloc" issue you had ? If yes, would you mind
sharing with us how you did ?
Now, about your new question:
The softmixer is failing while trying to open the read side of the
snd-aloop device. With the little information we have here in your log,
it is pretty hard to say why.
This is what you should have:
INFO: [API smixer] CreateOneStream, stream 2ch-generic-usb multimedia,
source (null), sink full-stereo, mute 0
INFO: [API smixer] CreateOneStream: found loopdev 1,2
But you get this:
INFO: [API smixer] CreateOneStream: 2ch-generic-usb not found in loop,
look in sources
This is really unexpected. With a null source given as an argument, the
subdev "2" should automatically be opened. For information, "look in
source" is a special fallback for the softmixer to directly read from
hardware capture devices (microphones, radio ...), and this it not what
you want here.
I suggest you have a look at the ApiLoopFindSubdev function (in
alsa-api-loop.c) and try to understand how come it returns NULL.
Regards,
Thierry
On 08/17/2018 10:30 AM, Sitech wrote:
Hi,
When I wanna to use 4a to manager an external sound card and play some
music, but i got some errors, i think must be some problem in my
configuration files. So i hope friends to give me some advices, here is
my log and attachment is my configuration file.
```log
Aug 8 08:28:30 raspberrypi3 daemon.info
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: INFO: [API smixer]
MixerAttachVerb set RAMPS
[/usr/src/debug/4a-softmixer/0.1+gitAUTOINC+ded8e37b50-r0/git/plugins/alsa/alsa-api-mixer.c:608,MixerAttachVerb]
Aug 8 08:28:30 raspberrypi3 daemon.info
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: INFO: [API smixer]
MixerAttachVerb set STREAMS
[/usr/src/debug/4a-softmixer/0.1+gitAUTOINC+ded8e37b50-r0/git/plugins/alsa/alsa-api-mixer.c:618,MixerAttachVerb]
Aug 8 08:28:30 raspberrypi3 daemon.info
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: INFO: [API smixer]
ApiStreamAttach: 2ch-generic-usb prefix 2ch-usb
[/usr/src/debug/4a-softmixer/0.1+gitAUTOINC+ded8e37b50-r0/git/plugins/alsa/alsa-api-streams.c:508,ApiStreamAttach]
Aug 8 08:28:30 raspberrypi3 daemon.notice
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: NOTICE: [API smixer]
ApiPcmSetParams:multimedia format set to SND_PCM_FORMAT_S16_LE
[/usr/src/debug/4a-softmixer/0.1+gitAUTOINC+ded8e37b50-r0/git/plugins/alsa/alsa-api-pcm.c:401,ApiPcmSetPar
Aug 8 08:28:30 raspberrypi3 daemon.notice
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: NOTICE: [API smixer]
ApiPcmSetParams:multimedia access set to (null)
[/usr/src/debug/4a-softmixer/0.1+gitAUTOINC+ded8e37b50-r0/git/plugins/alsa/alsa-api-pcm.c:420,ApiPcmSetParams]
Aug 8 08:28:30 raspberrypi3 daemon.info
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: INFO: [API smixer]
CreateOneStream, stream 2ch-generic-usb multimedia, source (null), sink
full-stereo, mute 0
[/usr/src/debug/4a-softmixer/0.1+gitAUTOINC+ded8e37b50-r0/git/plugins/alsa/alsa
Aug 8 08:28:30 raspberrypi3 daemon.info
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: INFO: [API smixer]
CreateOneStream: 2ch-generic-usb not found in loop, look in sources
[/usr/src/debug/4a-softmixer/0.1+gitAUTOINC+ded8e37b50-r0/git/plugins/alsa/alsa-api-streams.c:218,Creat
Aug 8 08:28:30 raspberrypi3 daemon.err
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: ERROR: [API smixer]
CreateOneStream: mixer=Alsa-Mixer stream=multimedia not found in
loops/sources
[/usr/src/debug/4a-softmixer/0.1+gitAUTOINC+ded8e37b50-r0/git/plugins/alsa/alsa-api-streams
Aug 8 08:28:30 raspberrypi3 daemon.err
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: ERROR: [API smixer]
AttachOneStream: failed to create stream
[/usr/src/debug/4a-softmixer/0.1+gitAUTOINC+ded8e37b50-r0/git/plugins/alsa/alsa-api-streams.c:494,AttachOneStream]
Aug 8 08:28:30 raspberrypi3 daemon.err
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: ERROR: [API smixer]
AttachOneStream fail
[/usr/src/debug/4a-softmixer/0.1+gitAUTOINC+ded8e37b50-r0/git/plugins/alsa/alsa-api-streams.c:502,AttachOneStream]
Aug 8 08:28:30 raspberrypi3 daemon.warn
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: WARNING: [API
4a-hal-2ch-generic-usb] Api smixer and verb attach found, but this error
was raised : 'invalid-syntax' with this info : 'ApiStreamAttach:
mixer=Alsa-Mixer invalid stream= { "ui
Aug 8 08:28:30 raspberrypi3 daemon.err
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: ERROR: [API
4a-hal-2ch-generic-usb] Error -10 during call to verb attach of smixer
api with status 'invalid-syntax' and info 'ApiStreamAttach:
mixer=Alsa-Mixer invalid stream= { "uid": "mult
Aug 8 08:28:30 raspberrypi3 daemon.err
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: ERROR: [API
4a-hal-2ch-generic-usb] HalCtlsInitOneApi: Error -7 while attaching to
mixer
[/home/albert/files/agl/code/audio-4a-backup/4a-hal-generic/4a-hal/4a-hal-controllers/4a-hal-controll
Aug 8 08:28:30 raspberrypi3 daemon.err
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: ERROR: Initialisation of
service API 4a-hal-2ch-generic-usb failed (-4): Success
[/home/albert/files/agl/code/app-framework-binder-2/src/afb-export.c:1702,afb_export_start]
Aug 8 08:28:30 raspberrypi3 daemon.err
afbd-agl-service-audio-4a@1.0-11d2ae9[538]: ERROR: The api
4a-hal-2ch-generic-usb failed to start
[/home/albert/files/agl/code/app-framework-binder-2/src/afb-apiset.c:799,start_api]
```
raspberrypi3:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 0: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 1: Device [USB Audio Device], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 2: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 3: vc4hdmi [vc4-hdmi], device 0: MAI PCM vc4-hdmi-hifi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
raspberrypi3:/dev/snd# ls ./* -al
crw-rw---- 1 root audio 116, 0 Aug 8 08:28 ./controlC0
crw-rw---- 1 root audio 116, 32 Aug 8 08:28 ./controlC1
crw-rw---- 1 root audio 116, 64 Aug 8 08:28 ./controlC2
crw-rw---- 1 root audio 116, 96 Aug 8 08:28 ./controlC3
crw-rw---- 1 root audio 116, 24 Aug 8 08:28 ./pcmC0D0c
crw-rw---- 1 root audio 116, 16 Aug 8 08:28 ./pcmC0D0p
crw-rw---- 1 root audio 116, 25 Aug 8 08:28 ./pcmC0D1c
crw-rw---- 1 root audio 116, 17 Aug 8 08:28 ./pcmC0D1p
crw-rw---- 1 root audio 116, 56 Aug 8 08:28 ./pcmC1D0c
crw-rw---- 1 root audio 116, 48 Aug 8 08:28 ./pcmC1D0p
crw-rw---- 1 root audio 116, 80 Aug 8 08:28 ./pcmC2D0p
crw-rw---- 1 root audio 116, 81 Aug 8 08:28 ./pcmC2D1p
crw-rw---- 1 root audio 116, 112 Aug 8 08:28 ./pcmC3D0p
crw-rw----. 1 root audio 116, 1 Aug 8 08:28 ./seq
crw-rw---- 1 root audio 116, 33 Aug 8 08:28 ./timer
./by-id:
total 0
drwxr-xr-x. 2 root root 60 Aug 8 08:28 .
drwxr-xr-x. 4 root root 380 Aug 8 08:28 ..
lrwxrwxrwx 1 root root 12 Aug 8 08:28
usb-C-Media_Electronics_Inc._USB_Audio_Device-00 -> ../controlC1
./by-path:
total 0
drwxr-xr-x. 2 root root 120 Aug 8 08:28 .
drwxr-xr-x. 4 root root 380 Aug 8 08:28 ..
lrwxrwxrwx. 1 root root 12 Aug 8 08:28 platform-3f902000.hdmi ->
../controlC3
lrwxrwxrwx 1 root root 12 Aug 8 08:28
platform-3f980000.usb-usb-0:1.3:1.0 -> ../controlC1
lrwxrwxrwx. 1 root root 12 Aug 8 08:28 platform-snd_aloop.0 ->
../controlC0
lrwxrwxrwx 1 root root 12 Aug 8 08:28 platform-soc:audio -> ../controlC2
raspberrypi3:/dev/snd# ls /proc/asound/ -al
total 0
dr-xr-xr-x 8 root root 0 Aug 8 08:54 .
dr-xr-xr-x 185 root root 0 Jan 1 1970 ..
lrwxrwxrwx 1 root root 5 Aug 8 08:54 ALSA -> card2
lrwxrwxrwx 1 root root 5 Aug 8 08:54 Device -> card1
lrwxrwxrwx 1 root root 5 Aug 8 08:54 Loopback -> card0
dr-xr-xr-x 6 root root 0 Aug 8 08:54 card0
dr-xr-xr-x 4 root root 0 Aug 8 08:54 card1
dr-xr-xr-x 4 root root 0 Aug 8 08:54 card2
dr-xr-xr-x 3 root root 0 Aug 8 08:54 card3
-r--r--r-- 1 root root 0 Aug 8 08:54 cards
-r--r--r-- 1 root root 0 Aug 8 08:54 devices
-r--r--r-- 1 root root 0 Aug 8 08:54 hwdep
dr-xr-xr-x 2 root root 0 Aug 8 08:54 oss
-r--r--r-- 1 root root 0 Aug 8 08:54 pcm
dr-xr-xr-x 2 root root 0 Aug 8 08:54 seq
-r--r--r-- 1 root root 0 Aug 8 08:54 timers
lrwxrwxrwx 1 root root 5 Aug 8 08:54 vc4hdmi -> card3
-r--r--r-- 1 root root 0 Aug 8 08:54 version
raspberrypi3:/dev/snd# cat /proc/asound/devices
0: [ 0] : control
16: [ 0- 0]: digital audio playback
17: [ 0- 1]: digital audio playback
24: [ 0- 0]: digital audio capture
25: [ 0- 1]: digital audio capture
32: [ 1] : control
33: : timer
48: [ 1- 0]: digital audio playback
56: [ 1- 0]: digital audio capture
64: [ 2] : control
80: [ 2- 0]: digital audio playback
81: [ 2- 1]: digital audio playback
96: [ 3] : control
112: [ 3- 0]: digital audio playback
Thanks,
Sitech
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