ISSUE
No sound or "Aw, Snap!" message when trying to initiating a webRTC session e.g. http://appear.in, http://opentokrtc.com or apprtc.appspot.com
The video session session seems to work alright despite a lag of a few seconds.
I tried other versions of Chromium to no avail.
If the microphone is muted on the caller side (Mac or PC) the webrtc session initiates and no "Aw, Snap!", but no sound.
The issue happens with out without pulseaudio running.
Any pointers?
ENVIRONMENT
- Yocto linux distribution for Raspberry Pi2 (armv7).
- USB Microsoft LifeCam for audio + video capture.
Kernel
root@raspberrypi2:~# uname -a
Linux raspberrypi2 3.18.5 #1 SMP PREEMPT Tue Jun 30 11:29:55 BRT 2015 armv7l GNU/Linux
Audio
root@raspberrypi2:~# pulseaudio --version
pulseaudio 6.0
Setting audio output
root@raspberrypi2:~# amixer cset numid=3 1
numid=3,iface=MIXER,name='Mic Capture Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=56,step=0
: values=1
| dBminmax-min=-20.00dB,max=36.00dB
Modules
root@raspberrypi2:~# lsmod
Module Size Used by
nfc 55321 0
bluetooth 280645 2
rfkill 17817 2 nfc,bluetooth
ipv6 334939 30
snd_bcm2835 20215 3
snd_usb_audio 104675 0
uvcvideo 68873 1
snd_hwdep 5793 1 snd_usb_audio
snd_usbmidi_lib 19271 1 snd_usb_audio
videobuf2_vmalloc 2859 1 uvcvideo
videobuf2_memops 1506 1 videobuf2_vmalloc
snd_rawmidi 17856 1 snd_usbmidi_lib
videobuf2_core 34099 1 uvcvideo
snd_seq_device 5196 1 snd_rawmidi
v4l2_common 5362 1 videobuf2_core
snd_pcm 73756 3 snd_bcm2835,snd_usb_audio
snd_timer 17315 2 snd_pcm
videodev 121448 4 uvcvideo,v4l2_common,videobuf2_core
joydev 8515 0
evdev 9870 3
snd 49994 12 snd_bcm2835,snd_usb_audio,snd_hwdep,snd_timer,snd_pcm,snd_rawmidi,snd_usbmidi_lib,snd_seq_device
media 12065 2 uvcvideo,videodev
uio_pdrv_genirq 2916 0
uio 7608 1 uio_pdrv_genirq
Installed Chromium
Chromium was built using meta-browser Yocto layer.
root@raspberrypi2:~# /usr/bin/chromium/chrome --version
Chromium 40.0.2214.91
Chromium logs when error
root@raspberrypi2:~# tail -f /home/root/.chromium/chrome_debug.log | egrep "err|error|errors|fail|fails|failed|problem|issue"
[1215:1215:0701/144149:VERBOSE1:navigator_impl.cc(274)] Failed Provisional Load: https://getkahoot.com/appearin/, error_code: -3, error_description: Unknown error., showing_repost_interstitial: 0, frame_id: 3
[1215:1231:0701/144155:VERBOSE1:resource_loader.cc(321)] OnResponseStarted: https://bam.nr-data.net/1/9175f41998?a=7541921&sa=1&pl=1435761701071&v=632.2b17625&t=Unnamed%20Transaction&be=3336&fe=10696&dc=3426&f=%5B%22err%22,%22xhr%22,%22stn%22%5D&perf=%7B%22timing%22:%7B%22of%22:1435761701071,%22n%22:0,%22dl%22:2413,%22di%22:6761,%22ds%22:6761,%22de%22:12660,%22dc%22:14027,%22l%22:14030,%22le%22:14040,%22f%22:650,%22dn%22:711,%22dne%22:711,%22c%22:711,%22ce%22:2181,%22s%22:799,%22rq%22:2181,%22rp%22:2403,%22rpe%22:2409%7D,%22navigation%22:%7B%7D%7D&jsonp=NREUM.setToken
[1215:1231:0701/144155:VERBOSE1:resource_loader.cc(361)] OnReadCompleted: "https://bam.nr-data.net/1/9175f41998?a=7541921&sa=1&pl=1435761701071&v=632.2b17625&t=Unnamed%20Transaction&be=3336&fe=10696&dc=3426&f=%5B%22err%22,%22xhr%22,%22stn%22%5D&perf=%7B%22timing%22:%7B%22of%22:1435761701071,%22n%22:0,%22dl%22:2413,%22di%22:6761,%22ds%22:6761,%22de%22:12660,%22dc%22:14027,%22l%22:14030,%22le%22:14040,%22f%22:650,%22dn%22:711,%22dne%22:711,%22c%22:711,%22ce%22:2181,%22s%22:799,%22rq%22:2181,%22rp%22:2403,%22rpe%22:2409%7D,%22navigation%22:%7B%7D%7D&jsonp=NREUM.setToken" bytes_read = 41
[1215:1231:0701/144155:VERBOSE1:resource_loader.cc(361)] OnReadCompleted: "https://bam.nr-data.net/1/9175f41998?a=7541921&sa=1&pl=1435761701071&v=632.2b17625&t=Unnamed%20Transaction&be=3336&fe=10696&dc=3426&f=%5B%22err%22,%22xhr%22,%22stn%22%5D&perf=%7B%22timing%22:%7B%22of%22:1435761701071,%22n%22:0,%22dl%22:2413,%22di%22:6761,%22ds%22:6761,%22de%22:12660,%22dc%22:14027,%22l%22:14030,%22le%22:14040,%22f%22:650,%22dn%22:711,%22dne%22:711,%22c%22:711,%22ce%22:2181,%22s%22:799,%22rq%22:2181,%22rp%22:2403,%22rpe%22:2409%7D,%22navigation%22:%7B%7D%7D&jsonp=NREUM.setToken" bytes_read = 0
[1215:1231:0701/144155:VERBOSE1:resource_loader.cc(649)] ResponseCompleted: https://bam.nr-data.net/1/9175f41998?a=7541921&sa=1&pl=1435761701071&v=632.2b17625&t=Unnamed%20Transaction&be=3336&fe=10696&dc=3426&f=%5B%22err%22,%22xhr%22,%22stn%22%5D&perf=%7B%22timing%22:%7B%22of%22:1435761701071,%22n%22:0,%22dl%22:2413,%22di%22:6761,%22ds%22:6761,%22de%22:12660,%22dc%22:14027,%22l%22:14030,%22le%22:14040,%22f%22:650,%22dn%22:711,%22dne%22:711,%22c%22:711,%22ce%22:2181,%22s%22:799,%22rq%22:2181,%22rp%22:2403,%22rpe%22:2409%7D,%22navigation%22:%7B%7D%7D&jsonp=NREUM.setToken
[1249:1291:0701/144208:VERBOSE3:webrtcvideoengine.cc(3731)] VP8 options : picture loss indication = 0, feedback mode = 0, complexity = normal, resilience = off, denoising = 1, error concealment = 0, automatic resize = 1, frame dropping = 1, key frame interval = 3000
[1249:1291:0701/144208:VERBOSE3:webrtcvideoengine.cc(3731)] VP8 options : picture loss indication = 0, feedback mode = 0, complexity = normal, resilience = off, denoising = 1, error concealment = 0, automatic resize = 1, frame dropping = 1, key frame interval = 3000
[1249:1291:0701/144208:VERBOSE3:webrtcvideoengine.cc(3731)] VP8 options : picture loss indication = 0, feedback mode = 0, complexity = normal, resilience = off, denoising = 1, error concealment = 0, automatic resize = 1, frame dropping = 1, key frame interval = 3000
[1249:1291:0701/144208:VERBOSE2:webrtcvoiceengine.cc(2976)] SetOutputVolumePan(0, 1, 1) failed, err=8040
[1249:1291:0701/144209:VERBOSE3:webrtcvideoengine.cc(3731)] VP8 options : picture loss indication = 0, feedback mode = 0, complexity = normal, resilience = off, denoising = 1, error concealment = 0, automatic resize = 1, frame dropping = 1, key frame interval = 3000
[1249:1291:0701/144209:VERBOSE3:webrtcvideoengine.cc(3731)] VP8 options : picture loss indication = 0, feedback mode = 0, complexity = normal, resilience = off, denoising = 1, error concealment = 0, automatic resize = 1, frame dropping = 1, key frame interval = 3000
[1249:1291:0701/144210:VERBOSE3:webrtcvideoengine.cc(3731)] VP8 options : picture loss indication = 0, feedback mode = 0, complexity = normal, resilience = off, denoising = 1, error concealment = 0, automatic resize = 1, frame dropping = 1, key frame interval = 3000
My launching script with logging enabled
vi /usr/bin/google-chrome
#!/bin/sh
export DISPLAY=:0.0
export CHROME_DEVEL_SANDBOX=/usr/sbin/chrome-devel-sandbox
export LD_LIBRARY_PATH=/usr/lib/chromium
CHROME_EXTRA_ARGS=" --use-gl=egl --alsa-output-device=plughw:0,0 --use-fake-ui-for-media-stream --enable-logging --v=3 --no-sandbox --user-data-dir=/home/root/.chromium "
/usr/bin/chromium/chrome ${CHROME_EXTRA_ARGS} $@
NOTE: I am not getting the "Aw, Snap!" when using Ubuntu MATE for Raspberry Pi 2. I compared setups, Chromium versions are different. So I installed the same working version found on Ubuntu MATE onto my Yocto distro for RPi2, and I still get the issue.
