[mythtv-users] Samba, MythTV, and problems seeking and jumping
Micah Zebulon Wedemeyer
fanmail at micah-wedemeyer.net
Sat Oct 21 20:11:45 UTC 2006
This has been a long and arduous road, but I think I finally have found
some answers. But first, some history:
For a while now, I have been having trouble with recordings running
longer than 30 minutes. At about the 40 minute mark, I would lose the
ability to skip around. I would hit the jump key or the skip key, and
the display would get corrupted (very artifacty) then it would continue,
but no skip. So, I got used to it and it became part of TV watching.
Lately, I got sick of it and have been trying to figure it out. I
thought the problem was with the IVTV drivers because I could display it
outside of MythTV. I would record something (using cat /dev/video0),
let it run for an hour, then try to play it back with MPlayer. Mplayer
always played the files, but gave the following error output whenever I
tried to seek: "Cannot seek in linear streams" So, I assumed there was
a recording issue.
Recently, on a whim, I copied a recorded file to the local drive on my
frontend. All this time I had been streaming them over the network
(100Mb Ethernet) via a Samba share. After copying the file locally,
then using MPlayer on the local file, it no longer complained about the
"cannot seek in linear streams". So, following this lead, I shut off
Samba on the server. All of a sudden, MythTV could seek in the
recordings without a problem.
Now, the weird part: Samba should have nothing to do with the recording
and therefore Myth. I have Samba set up to share the mount point where
the backend is storing the recordings, but it is not mounted as an SMB
share on the backend. It's mounted as an LVM, since the drives are
physically located in the backend chassis. So, it puzzles me that Samba
would cause any problems for Myth playback. Myth uses its own scheme to
stream files to the frontends, correct? The MPlayer issues make sense,
but not the Myth issues.
So, for now, I have just shut off Samba. It's not 100% necessary for
me, but I'd like to have it running anyway since it's convenient. Does
anyone have any suggestions? Also, is this worth noting on the wiki?
Fedora Core 4 2.6.17-???
Samba ?? (3.0 I think)
Here is some text to get this tagged by searching. God knows it took me
long enough to find the root cause, maybe someone else is having similar
cannot seek in linear streams
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