Public bug reported:

Binary package hint: totem

When playing an MKV File the audio drops after a short while. (Testet on Ubuntu 
10.04 32-bit and Ubuntu 10.10 64-bit.)
Seeking to a new position or pausing and start again helps. 
Sometimes audio starts stuttering again after a short while of mute and then 
works as if nothing has happened.

Test System 1:
AMD Phenom(tm) 8650 Triple-Core Processor, 4 GB, Linux Aiur 2.6.35-25-generic 
#44-Ubuntu SMP Fri Jan 21 17:40:44 UTC 2011 x86_64 GNU/Linux, nVidia 9800 GT, 
totem 2.32.0

Test System 2:
Intel(R) Atom(TM) CPU  330   @ 1.60GHz, 2 GB,  Linux ion-1 2.6.32-28-generic 
#55-Ubuntu SMP Mon Jan 10 21:21:01 UTC 2011 i686 GNU/Linux, nVidia ION, totem 
2.30.2

The MVK was self-created using mencoder (medibuntu repositories on MEERKAT) and 
oggenc like this:
oggenc --version: oggenc from vorbis-tools 1.4.0
mencoder --version: MEncoder 1.0rc4-4.4.5 (C) 2000-2010 MPlayer Team
mkvmerge --version: mkvmerge v4.0.0 ('The Stars were mine') gebaut am Jun 18 
2010 07:35:17
>>>>>>>>
oggenc -Q -q 3 -o audio.ogg ...
BITRATE=1600
OPT=vcodec=mpeg4:psnr:mv0:cbp:trell=yes:mbd=2:keyint=125:naq:v4mv:vlelim=-4:vcelim=7:lumi_mask=0.05:dark_mask=0.01:tcplx_mask=0.01:scplx_mask=0.01:vratetol=32000:vbitrate=$BITRATE
VF_OPT=scale=790:432
mencoder ${INPUT} -aid ${AID} -vf ${VF_OPT} -ovc lavc -lavcopts $OPT:vpass=2 
-noodml -ffourcc DX50 -nosound -o output.avi
mkvmerge --title ${NAME} -o ${NAME}.mkv -A output.avi --language 0:ger audio.ogg
<<<<<<<<
(as you see this is an ordenary DIVX in MKV Container.)
playing the same file in either VLC or mplayer works flawless.

using the --debug option shows nothing useful:
>>>>>>>>
arndt@Aiur:~/DVD_TEMP$ totem TEST-1.mkv --debug
(totem:28022): Totem-DEBUG: Received SaveYourself(SmSaveLocal, !Shutdown, 
SmInteractStyleNone, !Fast) in state idle
(totem:28022): Totem-DEBUG: Setting initial properties
(totem:28022): Totem-DEBUG: Sending SaveYourselfDone(True) for initial 
SaveYourself
(totem:28022): Totem-DEBUG: Received SaveComplete message in state 
save-yourself-done
(totem:28022): Totem-DEBUG: totem_playlist_add_one_mrl (): TEST-1.mkv (null) 
(null)

^C
<<<<<<<<
I aborted after the error  occured but i cannot see any useful 
information...sorry

** Affects: totem (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/718370

Title:
  totem loses audio wehn playing .mkv files

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