[mythtv-users] recordinng profile based on channel

[Larry Roberts]

On 7/31/2013 11:27 PM, Gary Buhrmaster wrote:
> On Thu, Aug 1, 2013 at 3:14 AM, Larry Roberts <mythtv at american-hero.com> wrote:
> ....
>> I do have a question around recording profiles.  After adding my HDHomeRun I
>> have several recording profiles listed under a HDHomeRun Recorders.  While
>> they have several listed they appear to have no settings.  Any ideas what
>> that is all about and when/if I should change them?  I see under the
>> transcoders I can change some transcoding options but the HDHomeRun has no
>> settings.  Perhaps this is what I was thinking of above.
> Your PVR-250 actually took an analog signal, logically drew it
> it on a virtual screen, and than encoded that screen to an MPEG-2
> stream from the video in various qualities, which were specified
> as recording profiles (over simplification, but good enough).
>
> With the current HDHomeRun (and most other digital style tuners),
> the device just tunes the frequency, and then decodes the bitstream
> (QAM for cable, 8VSB for ATSC in the US) and passes it to the
> client (in this case, MythTV).  No decoding/encoding takes place
> in the tuner.  So, there are no recording profiles that matter.  What
> the broadcaster sends, you get (whether SD or HD quality).  In
> many cases, for most broadcasters, there is both a SD and a
> HD version of the content.  You will need to make sure that
> MythTV chooses the correct source for your system (that is
> usually the HD version, but there are always exceptions).
>
> Gary
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Thanks for the information.  Definitely helps clear up what is going on 
in my mind and explain things a bit better!

Larry