[mythtv-users] Problems with FF and REW

Sat Jan 21 05:15:20 UTC 2006

Hi,

I've been having problems recently with fast-forward and rewind.  When I try to
skip around, everything freezes for a second, then it changes.  However, the
change is always very slight (like 1-2 seconds) and there is a lot of
artifacting before things settle back to normal a second or two later.
Effectively, I can't skip around in recordings anymore.

I searched the archives for answers, and found a few people with the same
problems, but I couldn't find any answers that worked.

Here's the output from the log:
2006-01-20 22:00:46.675 New DB connection, total: 1
Total desktop width=800, height=600, numscreens=1
2006-01-20 22:00:46.922 Using screen 0, 800x600 at 0,0
2006-01-20 22:00:46.928 mythfrontend version: 0.18.1.20050523-1 www.mythtv.org
2006-01-20 22:00:46.928 Enabled verbose msgs : important general
2006-01-20 22:00:47.359 Switching to square mode (Titivillus)
mythtv: could not connect to socket
mythtv: No such file or directory
lirc_init failed for mythtv, see preceding messages
2006-01-20 22:00:47.434 Joystick disabled.
2006-01-20 22:00:47.541 Registering Internal as a media playback plugin.
2006-01-20 22:00:47.560 Registering MythDVD DVD Media Handler as a media handler
2006-01-20 22:00:47.562 Registering MythDVD VCD Media Handler as a media handler
2006-01-20 22:00:47.745 Registering MythMusic Media Handler as a media handler
2006-01-20 22:00:47.807 New DB connection, total: 2
SIP listening on IP Address ###.###.###.###:5060 NAT address ###.###.###.###
SIP: Cannot register; proxy, username or password not set
2006-01-20 22:00:50.322 All Programs
2006-01-20 22:00:50.570 Connecting to backend server: ###.###.###.###:6543 (try
1 of 5)
2006-01-20 22:00:50.576 Using protocol version 15
seek: Invalid argument
Invalid seektable (frametype -27)
2006-01-20 22:01:00.150 Disable DPMS
2006-01-20 22:01:01.137 Opening audio device '/dev/dsp'.
2006-01-20 22:01:01.137 Opening OSS audio device '/dev/dsp'.
2006-01-20 22:01:01.162 Using XV port 240
2006-01-20 22:01:01.623 Changing from None to WatchingPreRecorded
2006-01-20 22:01:01.622 New DB connection, total: 3
2006-01-20 22:01:01.624 The realtime priority setting is not enabled.
2006-01-20 22:01:02.035 Video timing method: USleep with busy wait
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
2006-01-20 22:01:23.865 Enable DPMS
2006-01-20 22:01:28.659 Disable DPMS
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
2006-01-20 22:01:32.954 Enable DPMS
2006-01-20 22:01:38.573 Disable DPMS
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
2006-01-20 22:01:40.818 Enable DPMS
2006-01-20 22:01:45.409 Disable DPMS
2006-01-20 22:01:45.511 Enable DPMS
2006-01-20 22:01:46.327 Disable DPMS
2006-01-20 22:01:46.531 Enable DPMS
2006-01-20 22:01:47.347 Disable DPMS
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
2006-01-20 22:01:49.604 Enable DPMS
2006-01-20 22:01:52.154 Disable DPMS
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
2006-01-20 22:01:58.591 Enable DPMS
2006-01-20 22:03:33.151 Disable DPMS
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
2006-01-20 22:03:36.429 Enable DPMS
2006-01-20 22:03:41.646 Disable DPMS
[mpeg4 @ 0x32a5b4]warning: first frame is no keyframe
2006-01-20 22:03:50.110 Changing from WatchingPreRecorded to None
2006-01-20 22:03:50.144 Changing from None to None
2006-01-20 22:03:50.761 Enable DPMS

I read that the "first frame is no keyframe" may have something to do with the
recordedmarkup table, so I ran the following query:
REPAIR TABLE recordedmarkup;

It ran for a few seconds then showed a message saying everything was OK.

Also, I get the same problem when watching shows as they record (ie. before they
are transcoded to mpeg4)

My setup (as best I can remember):
-- Frontend --
mythtv-suite 0.18.1 (followed Jarod's guide)
Fedora Core 4
GeForce FX 5200
AMD Sempron 2600+ (socket 754)
512MB RAM
mATX nForce3-150 mobo (I think)

-- Backend --
mythtv-suite 0.18.1
Fedora Core 4
PVR-250
GeForce4 Ti4200
AMD Athlon 1600+
Epox 8KHA+ mobo (VIA KT266A or something like that)
512MB RAM

I'm not sure about ivtv versions and such, but if it would help, I can look into
it.

Any help with this would be appreciated!
Micah