[mythtv-users] Lossless Cut Inaccurate Cut Points

Eric Smith erictsmith at gmail.com
Fri Dec 28 15:18:16 UTC 2012


On Fri, Dec 28, 2012 at 10:10 AM, Doug Vaughan <r.d.vaughan at rogers.com>wrote:

> Eric,
>     Which device made the recordings? If it is an HDHomerun then
> recordings from that device is mentioned in the Lossless Cut wiki as being
> problematic. If you are not using a HDHomerun then create a bugreport.
> Seeinstructions on the wiki page:
> http://www.mythtv.org/wiki/**Lossless_Cut#Bug_Reporting<http://www.mythtv.org/wiki/Lossless_Cut#Bug_Reporting>
>
> Please use the "-B" option which will include a 25Mg sample of the problem
> video file. The accuracy of Lossless Cut is totally bound to the ability of
> the mkvmerge utility to properly read the recorded video file and the
> accuracy of the MythTV keyframes in the recordedmarkup table. The cut
> pointsare a calculation of their location in the formula:
> keyframe * Framesper second = HH:MM:SS.nnnnnnnnn (down to the nano second)
>
> If the recorded file cannot have its cut points calculated that way (e.g.
> some HDHomerun recordings) then the mkvmerge's cuts will not be inaccurate.
>
> Doug
>

Thanks Doug,
The recordings were made from an hdhomerun prime.  Are all of the
hdhomeruns included in this bucket of problematic devices?
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