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mixed formats
I am still trying to come up with a solution with my mixed formats question. I have 2 types of source material…both from EX1: 1920×1080 24p. HD and 1440×1080 30i in the hdv 25mpbs… both are obviously ntsc.
I want to edit together a bunch of material but need to deliver in PAL format. I am told .mov ..quictime files are fine.
I’ve created at 720×576 Pal DV (widescreen) project. I drop the material into the timeline and edit…no problem. When I render out as Pal interlaced (lower field first) .mov file…if get video breakup between the edits involving the 24p material and the 30i material… and even breakups between the 24p material.
However …if i render to .mov in progressive mode…it resolves the problem. Question is: 1. Am i actually creating a true (PAL) .mov file?
2. If i render out in progressive with it cause a problem for european newsbroadcasters?I really appreciate any advice …
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6 Replies
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PAL is interlaced so you really need to fix this problem and produce a proper PAL formatted file. You either need to convert your 24p to 60i or your 60i to 24p so that you are working at the same frame rate. I would convert the 24p footage to 60i and edit the whole thing on a 60i timeline. Then render to PAL.
One could argue that the 24p is closer to the frame rate of 25fps of PAL and so you should convert the 60i to 24p but if you convert the 60i to 24p you will loose vertical information in the deinterlacing only to reinterlace it again at the end so the image might get soft.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
I like the idea of cutting 60i and rendering PAL .mov file.
So do you think its best to cut in 60i HD 1920×1080? or should I cut in the NTSC DV Widescreen format?
What do you feel is the best way to convert the 24p material to 60i?
Very helpful and thanks for getting back so quickly. -
So do you think its best to cut in 60i HD 1920×1080? or should I cut in the NTSC DV Widescreen format?
NTSC has less resoluton than PAL so I would NOT edit in NTSC if your target is PAL. You can edit in PAL Widescreen if that’s your delivery format and see if you can have both 24p and 60i behave correctly.
What do you feel is the best way to convert the 24p material to 60i?
Personally, I would do it with a visually lossless codec like Cineform. If you don’t want to buy Cineform then render the files to HDV in Vegas so that they match the other footage but that may be very tedious if you have a lot of files to convert.
Another option is to use VASST GearShift. What GearShift can do is render both your 60i and 24p footage to PAL Widescreen and then you can just work in a PAL Widescreen project since that is you final render format.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Thanks for this…very useful. I also worked out another potential solution.
This is a one off project and doesn’t involve a great deal of material so it might work.
For the 24p ntsc material… i simply edit in a separate 60i timeline…(although if you think pal is better i can do 50i) then i render that timeline as a PAl mp4 file.for the 60i material i edit in a 50i timeline and ‘import’ the mp4 material (that was originally 24p) and just use it to edit as normal. It seems to work and when i render out the final product as quicktime .mov file (pal) which is what i need…it looks quite good and does not have any breakup between what was the 24p material and the 60i material.
does this make any sense?
much appreciate the advice!!! -
Quick update…..i took your advice and switched project settings to Widescreen PAl (DV). Did a quick edit mixing the material…then rendered as PAL .mov file. No issue/video breakup…. so that seems to be the answer….and a very simple solution..
many thanks.. -
Yea, sometimes it helps to work in the same project dimensions that you are going to deliver in. Glad that worked.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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