[mythtv] [PATCH] DTVRecorder::HandleKeyframe - SetPositionMap/Delta

Taylor Jacob rtjacob at earthlink.net
Wed Dec 29 16:13:07 UTC 2004


> While a ringbuffer is still necessary to prevent the overruns, this fix does
> mean that the ringbuffer size can be much smaller.  In a preliminary test, I
> saw a maximum of 4.7MB used after an hour of recording three shows.  These
> shows were just upconverts and not true HD, but that is promising.

What difference does it make if its an upconvert or not?  Since you are just
saving the mpeg streams it doesn't care about what format it is in.  If the
content was (foolishly) upconverted to say 720p or 1080i it would be just the
same as if the content were true 720p or 1080i.  The bandwidth usage should be
the same, so I don't understand what you are getting at..

Taylor


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