[vdr] Re: [PATCH] Channel switch

[s.huelswitt@gmx.de (Stefan Huelswitt)]

On 26 Jan 2003 Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de> wrote:

>> The patch changes the behaviour in this way, that the decoder on
>> the secondary card is started when tunning to a new channel. This
>> fixes the restart problem for me.
> 
> I would have guessed that the probability for the DVB card to lock up
> would be higher if the PIDs _are_ set.
> Are you really sure that this change fixes the problem? Here on my box
> I don't seem to have any problems with not setting the PIDs.

Well, I had VDR restarts (data stream broken) on nearly ever
recording on the secondary card before. No more restarts since
the change. Can not say if this specific to my system.

>> The patch also fixes a small bug, when recording on the primary
>> interface. For recordings on the prim. card VDR has to start
>> transfer mode to allow channel switches during recording. This
>> only works if the prim. interface is already tuned to the
>> correct channel. If the card has to tune to another channel for
>> recording, no transfer mode is started (black screen).
> 
> I believe there's more to this problem than just this. For instance
> on a system with only a DXR3 card as primary device the Transfer Mode
> also has to be re-launched. I'll need to look further into this before
> changing anythig here...

Yes, but in this case it's a "real" transfer mode (between two
cards). I think this case is working fine. The case I described
is when a one-card transfer mode is needed during recording.

-- 
Stefan Huelswitt
huels@iname.com  | http://home.pages.de/~nathan


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