Doom9's Forum - View Single Post - What to do with 25fps Progressive Blu-Ray Encodes?

agressiv · 5th August 2017, 17:50

I have various blu-rays from the UK which are encoded at 25fps progressive, but because of the lack of a progressive blu-ray 25fps standard, are "flagged" as MBAFF interlaced.

However, when I use the idet filter with ffmpeg, many of these files have anywhere from 10-70 interlaced frames (TFF) out of a random 1000 sample set, and when I seek in MPC-HC, I could swear that I'm seeing interlaced jaggies, but they are obviously less pronounced then on a PAL DVD due to resolution.

So, how would you guys handle these? Would you:

Just encode them straight progressive with no filters and ignore the interlaced frames?
Would you use QTGMC with InputType=1 regardless of how many interlaced frames ffmpeg found?
Use QTGMC with double-rate?
Use QTGMC with single-rate?
Do something else?

Examples are seasons 5-9 of Doctor Who (UK Version), Life, Frozen Planet - all BBC shows.

5th August 2017, 17:50	#1 \| Link
agressiv Registered Loser Join Date: Dec 2004 Posts: 117	What to do with 25fps Progressive Blu-Ray Encodes? I have various blu-rays from the UK which are encoded at 25fps progressive, but because of the lack of a progressive blu-ray 25fps standard, are "flagged" as MBAFF interlaced. However, when I use the idet filter with ffmpeg, many of these files have anywhere from 10-70 interlaced frames (TFF) out of a random 1000 sample set, and when I seek in MPC-HC, I could swear that I'm seeing interlaced jaggies, but they are obviously less pronounced then on a PAL DVD due to resolution. So, how would you guys handle these? Would you: Just encode them straight progressive with no filters and ignore the interlaced frames? Would you use QTGMC with InputType=1 regardless of how many interlaced frames ffmpeg found? Use QTGMC with double-rate? Use QTGMC with single-rate? Do something else? Examples are seasons 5-9 of Doctor Who (UK Version), Life, Frozen Planet - all BBC shows.