[mythtv-users] Partly OT - recording DCT-6412 content via firewire onto Linux box.

[N Dugas]

N Dugas wrote:
> Steve Adeff wrote:
> 
>>On Wednesday 11 January 2006 12:19, N Dugas wrote:
>>
>>
>>>Steve Adeff wrote:
>>>
>>>
>>>>On Tuesday 10 January 2006 22:39, N Dugas wrote:
>>>>
>>>>
>>>>>Steve Adeff wrote:
>>>>>
>>>>>
>>>>>>On Monday 09 January 2006 22:03, N Dugas wrote:
>>>>>>
>>>>>>
>>>>>>>Hi all,
>>>>>>>
>>>>>>>I've managed to get my Gentoo box (new Myth box in process of being
>>>>>>>built) to be able to see my DCT-6412.  Recently, I recorded a PPV and
>>>>>>>would like to x-fer it to my PC to offload some PVR content (to make
>>>>>>>space for my series recordings).  Until now, I've been able to play
>>>>>>>back the content and use test-mpeg2 to record it.  With this PPV, I
>>>>>>>get a 0 length file.  For fun, I stoped playback of my PPV recording
>>>>>>>and changed channel.  The file size started increasing.  Is there a
>>>>>>>way for me to tell if my recording is protected and therefore will not
>>>>>>>play over the firewire port?
>>>>>>>
>>>>>>>On the same note, could I record a PPV when I order it with Myth
>>>>>>>instead of on my 6412?
>>>>>>>
>>>>>>>Thanks,
>>>>>>>Norm
>>>>>>
>>>>>>Have the channel/recording you want to extract playing, Power off, hit
>>>>>>select immediately, go to d11 and see what 5C is set to, only 0 will let
>>>>>>you transfer over firewire to a PC. You might be able to transfer a live
>>>>>>PPV while a recorded one you can't as well...
>>>>>>
>>>>>>You won't be able to take advantage of dual tuner over firewire, as all
>>>>>>firewire does it output what you send to the TV, so your best off with a
>>>>>>single tuner HDTV cablebox and no DVR functionality for Myth use.
>>>>>
>>>>>I tried the process you mentionned but it only works when I'm using the
>>>>>tuners.  When using the PVR, nothing happens when  I press select.  I'm
>>>>>going to assume that I can't transfer it to my linux box and press on
>>>>>with my myth install.
>>>>>
>>>>>One thing I've noticed is the same thing that others have reported...
>>>>>inconsistent captures using test-mpeg2.  Sometimes it works, somtimes
>>>>>not.  Something else to look at but only after I get myth running (most
>>>>>likely tomorrow night I'll have more time to set it up).
>>>>
>>>>so when you play back a recording you get no stream via firewire? sounds
>>>>like it enabled 5C for recorded shows.
>>>>
>>>>as for the inconsistency, does it quit randomly while transfering data or
>>>>you loose connection randomly between trasnfers?
>>>
>>>What I've noticed is that it either works or it doesn't.  There's not
>>>stopping in mid-capture unless I try to play back the PPV in question.
>>>I've started verifying the oPCR setting and I'll be keeping track of
>>>them to see when it captures and doesn't capture.
>>>
>>>I tried to capture again with the test-mpeg2 from libiec61883 0.1.0
>>>tarball and I ran into the same "File size limit exceeded" issue.  I'm
>>>now thinking it's not a filesystem issue but a header file definition
>>>setting the file size limit to 32 bits.  I did some digging around and I
>>>may need to enable largefile via a CFLAG option.
>>>
>>>Norm
>>
>>
>>strange, someone else mentioned more than one version of test-mpeg2, this may 
>>be it too, using different versions...
>>
>>So it sounds like your having the same issue with capturing as other DCT 
>>users. As soon as I can get a dev to help me write a test patch for us we may 
>>be able to test a fix for this...
>>
> 
> I don't know if this has any bearing but from memory, lspci reports that 
> my firewire card is an Agere FW623 (rev 61).  I may be slightly off on 
Oops, make that FW323.  I'll include an lspci tonight.

> the revision number though.  I'll have to check tonight.  It's a 3 port 
> firewire card.  On a reboot, my DCT-6412 always reports on node 1 but if 
> I unplug and replug it, it will show up on node 0 depending on which 
> port I am using on the PC (I'm trying to see if there is any impact on 
> operation with different ports).
> 
> Is there any additional info I can provide that may help with 
> development of a patch?
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