[mythtv-users] LiveTV with pen drive and tmpfs

[Michael T. Dean]

On 01/20/2010 04:33 AM, Schulz, Stephan wrote:
> From: Michael T. Dean
>> On 01/19/2010 07:25 AM, Schulz, Stephan wrote:
>>> Dear MythTV users,
>>>
>>> I would like to run a mythtv-maschine (frontend + backend) without
>>> physical disk space. There is just a pen drive to start from and a tmpfs.
>>>       
>>> I do not want to record any programs but would like to only watch livetv.
>>>       
>>> So now there is the problem that mythbackend will write the
>>> livetv-stream to the disk. I could use 1GB of ram for this on a tmpfs
>>> and mount it to /var/lib/mythtv/livetv/. In the FAQs and the wiki I
>>> read that mythtv will write junks of 30 minutes if there is no
>>> epg-data that specifies the actual length. I didn't find any setting
>>> in the DB to reduce this to for example 5 minutes.
>>> Is there a setting for this?
>>> Is there anonther way to achieve that mythbackend will write junks of
>>> 5 minutes even so that it does not matter what epg says about the
>>> length of the show?
>>>
>>> Thank you in advance
>>>       
>> If that's your goal, you may be better off with a different TV
>> application designed for LiveTV--like xawtv or tvtime or whatever.
>>
>> Myth is really a DVR, where the "R" means "Recorder."
> Thank you for your answer! But that is definitely not what I was
> directly heading for ;-)
>
> I know what MythTV is (actually I am using it for over 5 years now) and
> I have reasons why I want to use it in that way.
> I am interested in a deeper configuration and would like to know if it
> is possible to reduce the size of the files.
>
> I would be very glad if you (or anyone else) could give me a more
> technical answer to my question.
>   

Only by changing the code.  See http://svn.mythtv.org/trac/changeset/7923

Mike