[vdr] Re: With the new DVB drivers...

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

Klaus Schmidinger wrote:
> 
> Lauri Tischler wrote:
> >
> > Klaus Schmidinger wrote:
> > >
> > > I was under the impression that it was clear that you could only record
> > > channels on the same transponder - simple because there is only one tuner.
> > >
> > Yes, if one understands the difference between 'old' channels and 'new'
> > channels.
> 
> What do you mean by 'old' and 'new' channels?
> 
> > BTW. I was recording a movie from channel 3.
> > Channel 3 is on same uhf-channel as are channels 6,7 and 8
> > While switchin during the recording the log gives odd errors
> > --------
> > Sep 22 00:36:58 vdr syys   22 00:36:58 vdr[740]: switching to channel 2
> > Sep 22 00:36:58 vdr syys   22 00:36:58 vdr[885]: transfer thread ended
> > (pid=885)
> > Sep 22 00:36:58 vdr syys   22 00:36:58 vdr[740]: buffer stats: 136488
> > (13%) used
> > Sep 22 00:36:58 vdr syys   22 00:36:58 vdr[740]: switching to channel 1
> > Sep 22 00:36:58 vdr syys   22 00:36:58 vdr[740]: skipped channels 2..1
> > Sep 22 00:36:58 vdr syys   22 00:36:58 vdr[740]: switching to channel 3
> > Sep 22 00:36:58 vdr syys   22 00:36:58 vdr[886]: transfer thread started
> > (pid=886)
> > Sep 22 00:36:58 vdr syys   22 00:36:58 vdr[886]: ERROR: attempt to use
> > cPlayer::PlayVideo() without attaching to a cDevice!
> > Sep 22 00:36:59 vdr last message repeated 2716 times
> > Sep 22 00:36:59 vdr syys   22 00:36:59 vdr[886]: ERROR: attempt to use
> > cPlayer::PlayVideo() without attaching to a cDevice!
> > Sep 22 00:36:59 vdr last message repeated 5182 times
> > Sep 22 00:36:59 vdr syys   22 00:36:59 vdr[886]: ERROR (transfer.c,97):
> > Operation not permitted
> > Sep 22 00:36:59 vdr last message repeated 74 times
> > Sep 22 00:37:08 vdr syys   22 00:37:08 vdr[740]: switching to channel 4
> > Sep 22 00:37:08 vdr syys   22 00:37:08 vdr[886]: transfer thread ended
> > (pid=886)
> > Sep 22 00:37:08 vdr syys   22 00:37:08 vdr[740]: buffer stats: 317156
> > (30%) used
> > Sep 22 00:37:08 vdr syys   22 00:37:08 vdr[740]: switching to channel 5
> > Sep 22 00:37:08 vdr syys   22 00:37:08 vdr[740]: switching to channel 6
> > Sep 22 00:37:08 vdr syys   22 00:37:08 vdr[887]: transfer thread started
> > (pid=887)
> > Sep 22 00:37:08 vdr syys   22 00:37:08 vdr[740]: skipped channels 4..5
> > Sep 22 00:37:23 vdr syys   22 00:37:23 vdr[740]: switching to channel 7
> > Sep 22 00:37:23 vdr syys   22 00:37:23 vdr[887]: transfer thread ended
> > (pid=887)
> > Sep 22 00:37:23 vdr syys   22 00:37:23 vdr[740]: buffer stats: 39856
> > (3%) used
> > ---------------
> > I wonder what are those 'ERROR attempt to use cPlayer........'
> > and several thousends of them...
> 
> Looks like there's a race condition somewhere. I've seen this, too, here
> and will take a look at it.

Here's the fix:

--- transfer.c  2002/06/23 12:56:49     1.2
+++ transfer.c  2002/09/22 09:50:48
@@ -47,9 +47,11 @@
 
 void cTransfer::Receive(uchar *Data, int Length)
 {
-  int p = ringBuffer->Put(Data, Length);
-  if (p != Length && active)
-     esyslog("ERROR: ring buffer overflow (%d bytes dropped)", Length - p);
+  if (IsAttached()) {
+     int p = ringBuffer->Put(Data, Length);
+     if (p != Length && active)
+        esyslog("ERROR: ring buffer overflow (%d bytes dropped)", Length - p);
+     }
 }

Klaus
-- 
_______________________________________________________________

Klaus Schmidinger                       Phone: +49-8635-6989-10
CadSoft Computer GmbH                   Fax:   +49-8635-6989-40
Hofmark 2                               Email:   kls@cadsoft.de
D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de
_______________________________________________________________