--- On Wed, 19/1/11, Torgeir Veimo torgeir@netenviron.com wrote:
From: Torgeir Veimo torgeir@netenviron.com Subject: Re: [vdr] Deinterlace video (was: Replacing aging VDR for DVB-S2) To: "VDR Mailing List" vdr@linuxtv.org Date: Wednesday, 19 January, 2011, 13:50 On 19 January 2011 23:47, Tony Houghton h@realh.co.uk wrote:
I thought there was supposed to be a flag in MPEG meta
data which
indicates whether pairs of fields are interlaced or
progressive so
decoders can determine how to combine them without
doing any complicated
picture analysis. Are broadcasters not using the flag
properly [...]
Broadcasters can't even get the EPG data correct.
In my limited experience, watching UK Freeview recordings made with VDR, using Xines TVtime deinterlacer, with the progressive frame flag option set, deinterlace is on all of the time including video derived from a progressive film source, which is wrong.
I think it is safe to rely on this flag for deciding on whether to convert colour space in fields or frames, but it seems it gives you no clues whether to deinterlace or not.