[Bug 676881] New: daap served files sometimes stop playing when going from an mp3 to an ogg
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Sat May 26 06:34:52 PDT 2012
https://bugzilla.gnome.org/show_bug.cgi?id=676881
GStreamer | don't know | 0.10.36
Summary: daap served files sometimes stop playing when going
from an mp3 to an ogg
Classification: Platform
Product: GStreamer
Version: 0.10.36
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: don't know
AssignedTo: gstreamer-bugs at lists.freedesktop.org
ReportedBy: jamie at strandboge.com
QAContact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
This is https://bugs.launchpad.net/ubuntu/+source/gstreamer0.10/+bug/921071
"After upgrading to 12.04, rhythmbox will sometimes stop playing daap files,
only to after a few minutes start playing a different file again.
Ie, if I connect to a mt-daapd server running lucid with rhythmbox on precise,
I can play individual files fine. I have selected to have songs play in random
order, and rhythmbox will continue to the next song fine. Occassionally audio
will stop in one of the songs and then minutes later it will start up again
(with no user interaction) in another song. When it does stop, I can click to
fast forward to another song and it works ok. This does not seem to happen with
local files (I played them for hours with no interruption), only daap served
files.
I have tried to correlate this with a problem with networking in precise, but
do not see any messages problems in /var/log/syslog that would indicate a
problem. Rhythmbox can play a mixture of ogg and mp3 files fine (ie, it is not
a codecs issue). There is nothing in .xsession-errors when this occurs. I tried
to strace rhythmbox at the time of the problem, but couldn't figure out what
was happening.
This worked fine in 11.10 and earlier."
I narrowed this down to a simple reproducer-- moving from mp3 to ogg results in
the ogg not playing for several seconds and then starting somewhere within the
ogg (presumably the number of seconds that there was no sound output). This
seems to be related to transcoding by the mt-daapd server. If I add
'never_transcode = ogg,mpeg' to mt-daapd.conf the problem presents itself in
rhythmbox. If I remove it, it works fine.
Attached is updated debug output when using:
$ GST_DEBUG=:5 rhythmbox --debug > /tmp/lp-921071_debug-with-gst_debug5.log
Specifically, playing 2834.mp3 works fine, but when it transitions to 790.ogg,
there is a gap in playback.
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