[mythtv-users] Deinterlace stopped working in latest SVN trunk

[Boleslaw Ciesielski]

Brad Templeton wrote:
> And while I don't have enough knowledge to decode the transport
> streams, I still am curious if there are really progressive frames
> in the stream.  I mean, is it legal to transmit a 1080 line progressive
> frame (even at 30fps or less) in an over the air ATSC broadcast?

Yes, at 24fps or 30fps but not at 60fps. AFAIK, nobody does it though.

> Would the TVs out there handle it? 

They are supposed to, in theory (via the internal ATSC tuner, not 
necessarily via component/DVI/whatever input). But since there are no 
test cases, who knows.

> I mean it would be great if the networks transmitted moves at 1080p 30FrPS
> or even 1080p 24FrPS rather than in 1080i 60 fields/second (30 frames/second)
> as they normally do, but I didn't think it was even in the broadcast
> HDTV spec.  Does anybody know?

Both 1080p24 and 1080p30 are (and have been) part of ATSC spec. 1080p60 
is not.

See http://www.atsc.org/standards/a_53-Part-4-2007.pdf page 10

Bolek