[mythtv-users] Might seem like a dumb question but have to ask

Greg Oliver oliver.greg at gmail.com
Thu Feb 25 16:09:52 UTC 2010


On Thu, Feb 25, 2010 at 10:02 AM, Brent Bolin <brent.bolin at gmail.com> wrote:
> On Thu, Feb 25, 2010 at 9:59 AM, Brent Bolin <brent.bolin at gmail.com> wrote:
>> On Thu, Feb 25, 2010 at 9:07 AM, Eloy Paris <peloy at chapus.net> wrote:
>>> On Thu, Feb 25, 2010 at 09:01:41AM -0600, Brent Bolin wrote:
>>>
>>>> Do OTA(Live TV recordings) and Videos use the same playback settings
>>>>
>>>> Example:
>>>>
>>>> Setup, TV settings, Playback
>>>>
>>>> slim
>>>> high qualtity
>>>> vdpu
>>>> etc...
>>>
>>> When the internal player is used for videos yes, the same playback
>>> settings are used.
>>>
>>> Cheers,
>>>
>>> Eloy Paris.-
>>> _______________________________________________
>>> mythtv-users mailing list
>>> mythtv-users at mythtv.org
>>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>>
>>
>> Thanks for your quick reply.
>>
>> I have (3) ZOTAC IONITX-A-U Atom N330 1.6GHz Dual-Core Mini ITX Intel
>> Motherboard front ends.
>>
>> The best playback for OTA HD recordings I use is "High Quality"(no
>> vdpau).  I have tried the stock vdpau(slim, normal, high quality) with
>> bad results.  Also tried some custom playbacks with the same result.
>>
>> Jerky, slow motion, pixelation etc...
>>
>> The CPU runs about 30% usage with this.  The playback is very good.
>>
>> I have just noticed when playing ripped DVD's it works fine.  Even
>> using vdpau high quality.  CPU usage goes down to less then 5%.
>>
>> So I'm beginning to think something else isn't configured correct for
>> recording OTA HD.
>>
>> Currently have all the default settings -
>> Recording profile
>> Transcoder autodetect
>> Recording group default
>> Storage group default
>> Playback group default
>>
>> And I have commercial flagging set.
>>
>> The OTA recordings are very large.
>>
>> Here is the file size of the David Letterman show -
>>
>> 7808495588
>>
>> Here is the size of Casino Royale -
>>
>> 1696577671 and file type  MPEG v4 system, version 2 ripped with
>> Handbrake(high profile)
>>
>> Is there something I should change when scheduling OTA recordings?
>>
>> Ubuntu 9.10
>> Myth .22
>> PCHD 5500
>> Dvico FusionHDTV7
>>
>> Any input would be appreciated.
>>
>
> Also using the internal player for all.

US OTA still uses mpeg-2 compression, so the file sizes are still
going to be rather large.  Your only option is to transcode them after
recording to shrink them..

-Greg


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