[mythtv-users] HD Homerun possible to capture stream with no mythtv installed yet?

R. G. Newbury newbury at mandamus.org
Tue Sep 2 20:04:25 UTC 2008


Tom Lichti wrote:
> R. G. Newbury wrote:
>> diane mittnik wrote:
>>   
>>> I haven't spec'd out a computer yet for mythtv.  I was waiting for AMD to
>>> release some faster phenoms that are low-power (65 watt), but so far 1.8 GHz
>>> is it (was waiting for the 2 GHz phenom, 4 core, that was supposed to be
>>> released in August).  Since another thread on the HD-PVR states that because
>>> the HD-PVR only does single-slice recording and won't put multiple cores to
>>> use, therefore requires a high MHz dual-core cpu instead of a lower MHz (and
>>> lower power cost) but more cores (4) cpu, I've decided to wait (for
>>> faster/low power cpus coming) rather than commit to ordering parts and
>>> building a mythtv computer I know I won't be happy with in 6 months.
>>>
>>> In the meantime...if I can catch the HDHomerun on sale with free shipping
>>> again, will it be possible to "record" OTA programs by capturing the stream
>>> somehow?  Will I also be able to "capture" sound as well?  I'm thinking if I
>>> can dump the stream to a file by using a cron job to capture the streams
>>> when the programs I want to record are playing... is this possible?
>>>
>>> Is a command line sufficient to capture a video/audio stream and also tune
>>> the HDHomerun to a certain channel for the capture?  If not, can I pre-tune
>>> the HDHomerun to a certain channel, capture via a cron job, then manually
>>> change the channel on the HDHomerun through a command line or other manual
>>> method to record a different channel...
>>>
>>> If possible, this would also allow others who are assembling parts for a
>>> mythtv computer to start capturing some programs while the computer is being
>>> assembled or while waiting for other parts to arrive.  Or just to test while
>>> the mythtv computer is otherwise busy/unavailable.
>>>     
>> The answer is "yes, yes, yes and yes" if you can write a commandline script.
>>
>> If you read the help files for the HDHR, or the instructions as silicon 
>> dust, the hdhr can be set from the command line. You can set it to a 
>> channel using hdhomerunconfig.
>> Then capture the stream with a cat > file.
>>   
> Do you even need to cat it? Can't the hdhomerunconfig command save 
> directly to a file? I seem to recall it can, but I hardly ever use that 
> facility, so I'm a bit fuzzy on the details.
> 
> Tom


You could be right at that...I haven't actually played with my hdhr from 
the command line since...about when I bought it about 2 years ago.
It's plugged into the network and the antenna and it works.

Geoff


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