Everyone makes various assumptions based on prior experience. My particular assumption in this case was, “If the source is interlaced video then the exported result should also be interlaced.” I have been experimenting and I am thinking perhaps I need to update my assumptions. I would like your opinion and experience in replies here.
I have only three sources for my video: DV, HDV and iPhone video. DV and HDV are interlaced source while the iPhone records in full HD progressive.
Unlike just a few years ago, I don’t know anyone who might view my videos who owns a CRT based TV with 4:3 aspect ratio. Therefore, all my new videos ought to be exported in 16:9 aspect. The question has been, “Should I now export progressive?” So, I have been experimenting, exporting using the libx264 codec with High profile option and the .mp4 container. I exported the same file in progressive and then interlaced and, quite frankly, I could not tell the difference on the 47 inch living room HDTV. What makes evaluating the results so complicated is the fact that playing either file with VLC on the PC monitor DOES show artifacts on BOTH files!
Extra credit: As I said previously, I have been exporting my DV (actually analog video imported through A/D converter) as 16:9 aspect, 720x480 but the Properties exposed in Shotcut show what is called Rec. BT.709 ATSC color standard vs the Rec. BT.601 standard for NTSC television. Professional video production would require a standards conversion but, I can’t see any difference for not doing any conversion so I guess it doesn’t really matter. -shrug-
I was curious after watching a YouTube video which the author explained that the export properties for .mp4 video progressive - the Field order, Deinterlacer and Interpolation values don’t matter. The salient part is one minute into the video.
I suppose this should have been a “duh” moment for me but since the options were still there I thought I had to select them - and then I fussed about which ones were best! Since they don’t apply for progressive export should they be removed from the video properties once progressive is selected?
Also, this guy claims that “Constant bitrate” gives him the best quality video. What is your preference?
Well, that ought to provoke some discussion. See you down the page.