[mythtv-users] Trying to use HDTV as a firewire recorder
mythtv at cox.net
Tue Sep 4 04:24:37 UTC 2007
> Andrew Burgess wrote:
>>> I have a Samsung HDTV with both a cable card and IEEE1394 ports. For
>>> the past several months I have been able to use test-mpeg2 and "at" to
>>> record shows. Of course, this has many limitations.
>>> I have set-up my TV as an "OTHER" firewire box. I created a "channel
>>> changer" program that will power-up the TV (IR blaster), set the input
>>> to "TV", tune to the appropriate channel, and "prime" the firewire using
>>> test-mpeg2. The problem is that the backend appears to be recording,
>>> but the file is always 0 bytes.
>> I've had better priming luck with firewire_tester and myth_prime
>> both available as C files on the web. myth_prime includes a
>> /etc/sysconfig/mythbackend file to prime automatically
>> when the backend starts. You don't need to prime before every recording.
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
> I have downloaded an used the peer-to-peer prime script you suggested.
> It appears to "prime" the TV, but I am still unable to get mythtv to
> save a stream to disk. I have also tried broadcast mode which does not
> work at all in my case.
> Here is an example on my backend log:
> 2007-09-03 20:38:31.989 External Tuning program exited with no error
> 2007-09-03 20:38:32.002 Started recording: Get Fresh With Sara Snow
> "Green Yard": channel 4103 on cardid 6, sourceid 4
> libiec61883 warning: Established connection on channel 0.
> You may need to manually set the channel on the receiving node.
> 2007-09-03 20:38:32.022 FireRec: Buffered packets 2000 (8000 KB)
> 2007-09-03 20:45:00.771 TVRec(6): Changing from RecordingOnly to None
> 2007-09-03 20:45:00.782 Finished recording Get Fresh With Sara Snow
> "Green Yard": channel 4103
> 2007-09-03 20:45:00.784 Reschedule requested for id 0.
> 2007-09-03 20:45:00.992 Finished recording Get Fresh With Sara Snow
> "Green Yard": channel 4103
> 2007-09-03 20:45:01.003 Preview Error: Previewer file
> '/myth/tv/4103_20070903203800.mpg' is not valid.
> It appears to have recorded but the file is zero bytes. I tried similar
> tests again at the 3 different connect speeds (100, 200, 400) but I get
> the same result. While recording if I run "plugreport" I can see that
> n_p2p_connections=1 and it is zero when not recording.
> The firewire_tester script makes 15 connection attempts and works all 15
> times in every attempt I made to record.
> As I stated above, I have good success using test-mpeg2, but this has a
> very low WAF. I'd appreciate more suggestions.
> mythtv-users mailing list
> mythtv-users at mythtv.org
I put my backend in "verbose all" mode and this may help someone help me:
2007-09-03 21:14:41.879 FireRec: Creating P2P Connection with Node: 1
libiec61883 warning: Established connection on channel 0.
You may need to manually set the channel on the receiving node.
2007-09-03 21:14:41.897 FireRec: Created Channel: 0, Bandwidth
2007-09-03 21:14:41.901 FireRec: Buffered packets 2000 (8000 KB)
2007-09-03 21:14:41.901 FireRec: Changing Speed 200Mbps -> 100Mbps
2007-09-03 21:14:41.902 TVRec(6):
2007-09-03 21:14:41.904 TVRec(6): ClearFlags(NeedToStartRecorder,) ->
2007-09-03 21:14:44.753 ProcessPAT: PAT is missing program, setting timeout
2007-09-03 21:20:00.738 Finished recording Living Fresh "Green Sea":
Could the "PAT is missing program" be my problem?
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