Get the following floating point exception:
sweep: alsa_setup: audio interface could not be configured with specified parameters
Floating point exception
Back trace in gdb:
(gdb) run sweep.wav
Starting program: /home/erikd/Local/bin/sweep sweep.wav
[Thread debugging using libthread_db enabled]
[New Thread -1221769536 (LWP 7114)]
[New Thread -1231217776 (LWP 7117)]
[Thread -1231217776 (LWP 7117) exited]
[New Thread -1240208496 (LWP 7118)]
sweep: alsa_setup: audio interface could not be configured with specified parameters
Program received signal SIGFPE, Arithmetic exception.
[Switching to Thread -1240208496 (LWP 7118)]
0x0805d35c in alsa_device_write (handle=0x8388de8, buf=0x0, count=0, offset=-1)
at driver_alsa.c:364
364 uframes = count / handle->driver_channels;
(gdb) print handle->driver_channels
$1 = 0
Hmmm, driver_channels == 0 is really bad.
I initially tried this with a mono file even though my sound card only handles stereo.
Also tried this with a stereo file, but that also results in a SIGFPE.
Finally noticed that the sound file I was trying to play has a sample rate of 96kHz.
That would explain why ALSA failed to initialize the output device.
Obviously, if the ALSA device failed to initialize, alsa_device_write should exit
out early.
