[mythtv-users] new PC build that's MythTV compatible

Jay Harbeston jharbestonus at gmail.com
Tue Nov 3 14:33:50 UTC 2020

> On Nov 3, 2020, at 9:22 AM, Mike Hodson <mystica at gmail.com> wrote:
> On Tue, Nov 3, 2020 at 5:15 AM Jim Abernathy <jfabernathy at gmail.com <mailto:jfabernathy at gmail.com>> wrote:
> I think a lot of this panning problem is due to broadcast choices.  I notice the bits per second on my major networks is about 3-4 GB per hour, but the sub networks show reruns of the same shows at 0.8 GB per hour. They also use 480p but the panning jitter is really bad.
> Jim A
> If indeed the subchannels are 480p, then I don't think there's anything your videocard/processing settings can really do to help; I don't think there's any sort of algorithm to fix a progressive stream as technically they shouldn't need to be fixed. That said, sometimes one can convince ffmpeg to do strange things manually, and if really necessary avisynth can pull lines out and restitch them together into fields with delay if necessary or whatever is out of sync, but those are just pedantic possibilities if you wanted to moonlight as a video restoration technician or something. ;)

All of the sub channels in our area (Wilmington NC) are 480i and not 480p.. so they are also interlaced.

The only ATSC broadcast I receive not interlaced is 720p. Everything else is interlaced.


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