Re: [SoX-users] Using SoX with Lame to stream

[Simon E. <sim...@vo...>]

Good morning,

On 6 May 2010 at 16:16, Pascal Giard wrote:

> On Thu, May 6, 2010 at 3:24 PM, Simon Eigeldinger
> <sim...@vo...> wrote:
> > Hello,
> >
> > I am using SoX and  Lame to stream a mp3 stream directly from the
> > sound cards line in to an icecast server on a Debian system.
> >
> > But after 1-3 hours the whole chain crashes and shows this message:
> > fatal error: can't update LAME-tag frame!
> >
> > I don't know why it shows that.
> >
> > My command line chain is the following:
> > rec -r 48000 -c 2 -b 16 -t wavpcm - | lame --resample 48000 -b 96 - -
> > | ezstream -c /etc/ezstream.xml
> >
> > Does someone know why that happens and how to fix it so it runs
> > without crashing?
> >
> > The audio system is ALSA.
> >
> > Greetings and thanks for helping,
> > Simon
> 
> Hi Simon,
>  which version of SoX and/or which branch of Debian are you using?


I am using Debian testing and it has sox 14.3.0.

> Perhaps it could be a buffer underrun issue...
> If it's the case, until SoX 14.3.1 propagates to Debian unstable
> mirrors, you may want to try running sox with the "--single-threaded"
> parameter.

Unfortunately that seems also not to work well. here is the complete 
output. I have made it not verbose but i will enable that i think to 
find the issue more better. here is what we have:


$ Here we set the mixer:

Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch cswitch-joined penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 15
  Front Left: Capture 9 [60%] [13.50dB] [on]
  Front Right: Capture 9 [60%] [13.50dB] [on]

$ Here sox comes into play:

rec WARN wav: Length in output .wav header will be wrong since can't 
seek to fix
 it

$ Ezstream is connecting:
ezstream: Connected to http://localhost:8888/outside
ezstream: Streaming from standard input

$ Lame brings up an error message:
fatal error: can't update LAME-tag frame!

Greetings,
Simon