[vdr] stuttering video on some channels

Simon Baxter linuxtv at nzbaxters.com
Tue Jul 24 11:29:11 CEST 2007


I've recently added a dvb-c card, CI and Irdeto CAM to a system running
vdr-1.5.5.  All channels are encrypted.  Some channels (about 20%) seem to
have stuttering video.  I only get a frame every 1/2 second or so - the
video freezes on a frame for 1/2-1 second, then moves to the next frame etc
etc.
There are no messages in /var/log/messages or kernel messages in dmesg.
The only difference in changing to one of the stuttering video channels is a
sequence of "aMMMMMAMM" messages in the stdout logs from vdr.

Below is the channels.conf.  The channels 3 & 4 marked with '*' are examples
of the problem channels.  The only common thing between all problem
channels, is they all have a separate PCR PID.  But so do some of the
non-problem channels!

(symbol rates are XXXX'd out - as my provider protects these sorry)
channels.conf:
1;Juice TV;T:602000:M64:C:XXXX:849:850:0:606:305:182:3:0
2;Sneak Peek;T:602000:M64:C:XXXX:4961:4964=eng:0:606:310:182:3:0
3;*Living;T:610000:M64:C:XXXX:513+129:651=eng:0:606:402:182:4:0
4;*UKTV;T:610000:M64:C:XXXX:515+131:653=eng:0:606:404:182:4:0
5;*National Geographic;T:626000:M64:C:XXXX:6031:6032=eng:0:606:603:182:6:0
6;MTV;T:626000:M64:C:XXXX:6041:6042:0:606:604:182:6:0
7;*Documentary;T:626000:M64:C:XXXX:6051:6052=eng:0:606:605:182:6:0
7;BBC;T:626000:M64:C:XXXX:6061:6062=eng:0:606:606:182:6:0
8;*CNN;T:626000:M64:C:XXXX:6071:6072=eng:0:606:607:182:6:0

Below is some of the logs in std-out

-switch to channel: 1
SetPlayMode: 0
SetAudioChannelDevice: 0
SetPlayMode: 1
[vVMSetDigitalAudioDevice: 0
SetAudioChannelDevice: 0
aA]buffered 8.2 frames (v:15.8, a:8.2)
frame: (0, 0)-(704, 576), zoom: (1.00, 1.00)

-switch to channel: 2
SetPlayMode: 0
SetAudioChannelDevice: 0
SetPlayMode: 1
frame: (0, 0)-(720, 576), zoom: (1.00, 1.00)
[vVMSetDigitalAudioDevice: 0
SetAudioChannelDevice: 0
A]buffered 8.5 frames (v:16.2, a:8.5)
frame: (0, 0)-(544, 576), zoom: (1.00, 1.00)

-switch to channel: 3
SetPlayMode: 0
SetAudioChannelDevice: 0
SetPlayMode: 1
frame: (0, 0)-(720, 576), zoom: (1.00, 1.00)
[vVMMframe: (0, 0)-(544, 576), zoom: (1.00, 1.00)
SetDigitalAudioDevice: 0
SetAudioChannelDevice: 0
aMMA]buffered 8.3 frames (v:29.3, a:8.3)
buffered 9.2 frames (v:29.3, a:9.2)

-switch to channel: 4
SetPlayMode: 0
SetAudioChannelDevice: 0
SetPlayMode: 1
frame: (0, 0)-(720, 576), zoom: (1.00, 1.00)
[vVMframe: (0, 0)-(704, 576), zoom: (1.00, 1.00)
MSetDigitalAudioDevice: 0
SetAudioChannelDevice: 0
aMMMMMAMM]buffered 8.2 frames (v:15.8, a:8.2)




any ideas on this???


Simon




More information about the vdr mailing list