Package: sox
Version: 14.3.2-3
Severity: normal
This command hangs after generating a few seconds of sound:
AUDIODRIVER=pulseaudio play -n -c1 synth whitenoise band -n 100 20 \
band -n 50 20 gain +25 fade h 1 864000 1
If I try the same thing with AUDIODRIVER=alsa it works fine. The command
simulates Star Trek background noise, see:
http://www.reddit.com/r/scifi/comments/n7q5x/want_to_pretend_you_are_aboard_the_enterprise_for/c36xkjx
I don't know what information would be useful to debug this. I did recompile
sox with debug symbols to get a backtrace:
Starting program: /usr/bin/play -n -c1 synth whitenoise band -n 100 20 band -n
50 20 gain +25 fade h 1 864000 1
[Thread debugging using libthread_db enabled]
[New Thread 0x7fffec0fc700 (LWP 19868)]
Encoding: n/a
Channels: 1 @ 32-bit
Samplerate: 48000Hz
Replaygain: off
Duration: unknown
In:0.00% 00:00:07.51 [00:00:00.00] Out:360k [ -===|===- ] Clip:0
Program received signal SIGINT, Interrupt.
pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:142
142 ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Bestand of
map bestaat niet.
in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
(gdb) bt full
#0 pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:142
No locals.
#1 0x00007ffff38767a0 in pa_threaded_mainloop_wait (m=0x61c880) at
pulse/thread-mainloop.c:206
__func__ = "pa_threaded_mainloop_wait"
__PRETTY_FUNCTION__ = "pa_threaded_mainloop_wait"
#2 0x00007ffff3641e2a in pa_simple_write (p=0x628280, data=0x65ed38,
length=23240, rerror=0x7fffffffdf68)
at pulse/simple.c:290
l = <optimized out>
r = <optimized out>
__func__ = "pa_simple_write"
__PRETTY_FUNCTION__ = "pa_simple_write"
#3 0x00007ffff3a8ddce in write_samples (ft=0x627f00, buf=0x65c800, nsamp=8192)
at pulseaudio.c:133
pa = 0x628260
len = 32768
rc = 0
error = 1
#4 0x00007ffff7b26abd in sox_write (ft=0x627f00, buf=0x65c800, len=8192) at
formats.c:971
actual = 140737325790906
#5 0x0000000000404d8f in output_flow (effp=0x6346c0, ibuf=0x65c800,
obuf=0x664810, isamp=0x7fffffffe048,
osamp=0x7fffffffe040) at sox.c:630
len = 8192
#6 0x00007ffff7b3d6fa in flow_effect (chain=0x632b30, n=6) at effects.c:214
effp1 = 0x6344e0
effp = 0x6346c0
effstatus = 0
f = 0
i = 4155677282
ibuf = 0x0
idone = 8192
obeg = 0
#7 0x00007ffff7b3e103 in sox_flow_effects (chain=0x632b30, callback=0x406ffc
<update_status>,
client_data=0x0) at effects.c:351
osize = 0
flow_status = 0
e = 6
source_e = 0
f = 1
max_flows = 1
draining = sox_true
#8 0x0000000000408891 in process () at sox.c:1662
flow_status = 32767
#9 0x000000000040c107 in main (argc=20, argv=0x7fffffffe2f8) at sox.c:2863
i = 1
-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 3.1.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=nl_BE.UTF-8, LC_CTYPE=nl_BE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages sox depends on:
ii libc6 2.13-22
ii libgomp1 4.6.2-7
ii libgsm1 1.0.13-3
ii libltdl7 2.4.2-1
ii libmagic1 5.09-2
ii libpng12-0 1.2.46-3
ii libsox-fmt-alsa 14.3.2-3
ii libsox-fmt-base 14.3.2-3
ii libsox-fmt-pulse 14.3.2-3
ii libsox1b 14.3.2-3
ii zlib1g 1:1.2.3.4.dfsg-3
sox recommends no packages.
Versions of packages sox suggests:
pn libsox-fmt-all <none>
-- no debconf information
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