gst-launch hangs

[Tim Müller]

On Thu, 2014-02-20 at 21:05 -0800, Alice Wonder wrote:

Hi,

> Here's the gstreamer pipe my script tries when lame fails:
> 
> gst-launch filesrc location="${mp3}" ! flump3dec ! audioconvert !
> wavenc ! filesink location="${wav}"
> 
> Here's the output I get from gst-launch:
> 
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> Pipeline is PREROLLED ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> Caught SIGSEGV accessing address 0x7fb338021000
> #0  0x00000031858ea9dd in ?? ()
> #1  0x0000000000000000 in ?? ()
> Spinning.  Please run 'gdb gst-launch 7632' to continue debugging,
> Ctrl-C to quit, or Ctrl-\ to dump core.
> 
> -=-
> 
> The problem is gst-launch doesn't exit. I need it to exit when this
> happens. How do I configure it to do that?
> 
> ---
> 
> Fedora 20 w/ gstreamer-0.10.36-6.fc20.x86_64 and mp3 decoder from
> fluendo-codecs-complete-bundle-18-3.x86_64

In addition to what Carlos said in his mail:

 - add an mpegaudioparse (or mp3parse) in front of the decoder

 - lame is an mp3 *encoder*, it does not do any decoding

 - a stack trace with full debugging symbols would be more useful

You can disable the 'Spinning' fault handler by passing --no-fault to
gst-launch.

Cheers
 -Tim
-- 
Tim Müller, Centricular Ltd - http://www.centricular.com