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24P Output Problem
Hey guys, I’m hoping one of you can save my heiny here!
I’m an HVX 200 user and almost exclusively shoot 720p24PN but on this project they wanted 60+ hours of continuous footage so I shot 480i24P. I meant to do 480i24PA but the footage I have is telling me it’s 480i24P (59.94i with 2:3 pulldown). Previously, whenever I have worked in an interlaced workflow (1080i or 480i), I’ve always done PA because Vegas seems to like that. I messed up this time by doing 480i24P and am now have problems on my timeline with interlacing and jitter.
What I want to do is output the footage to DVD without having to do any reconversion. Is this possible?
Vegas 10 seems to want to import the footage and set the timeline to the 29.97 and interlaced with Upper field first. The HVX shoots everything progressive and then converts it to an interlaced stream, so I don’t know if that’s throwing off my edit software or what?
I’d just like to output to DVD Architect, so can someone tell me what to set my timeline and my render settings to in regards to framerate, pulldown, and interlacing settings?
So far, my 29.97 interlaced MPG outputs have ghosting, jitter and interlacing jags when played back on a DVD player (no resampling or deinterlacing whatsoever on my timeline). Defining my project as 23.976 in the timeline seems to throw all the motion off (and all my metadata for the HVX clips is saying these files are 29.97 with 2:3 pulldown).
All the pulldown and framerate stuff confuses me to no end when it comes to 24P editing and output. Please, someone stop my brain from exploding!
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6 Replies
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[Alex Kidd] “Vegas 10 seems to want to import the footage and set the timeline to the 29.97 and interlaced with Upper field first. The HVX shoots everything progressive and then converts it to an interlaced stream, so I don’t know if that’s throwing off my edit software or what?”
That’s because the footage is 29.97. That’s what “2:3 pulldown” is. It turns 23.976 into 29.97 by adding frames (which could look like ghosting).
[Alex Kidd] “I’d just like to output to DVD Architect, so can someone tell me what to set my timeline and my render settings to in regards to framerate, pulldown, and interlacing settings?”
I’m not familiar with that camera or the PN vs PA setting but you should output your video to MainConcept MPEG2 using the DVD Architect 24p NTSC Widescreen video stream and then render your audio as Dolby Digital AC3 Pro.
Normally, I would tell you to set your project to “NTSC DV 24p Widescreen (720×480, 23.976 fps)” and then change your timeline Ruler to “SMPTE Film Sync IVTC (23.976 fps, Video)”. It’s unfortunate that Vegas doesn’t change the timeline ruler when you change your project so perhaps that was the problem with timing that you had.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Hey John, thanks for the response. Normally, when I shoot 24PA, the workflow you described is exactly what I do. But using that setting with my 24P (that is, 720×480 29.97 with 2:3 pulldown) footage causes my playback within the timeline to still be full of added ghosting frames, interlacing jags and all things unholy. I just don’t get it.
I’ve taken a screenshot when I look at the properties of the clip, and it won’t even let me change the footage to 23.976:
So if it is indeed 29.97 with 2:3 pulldown, then shouldn’t Vegas just execute the pulldown if I brought it into its stock 24P timeline setting?
One other thing I’d like to ask – how does my timeline setting impact my render settings? For example, if I have 29.97 interlaced footage and I bring that into a 29.97 progressive timeline and then output to 29.97 interlaced, does the output file differ compared to if I brought the 29.97 interlaced footage into a 29.97 interlaced timeline and output to 29.97 interlaced?
Thanks in advance.
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No matter how I bring this footage in, I can’t seem to play it back without it being interlaced. I know for a fact that it is progressive, since the HVX captures everything progressive from the CCD, but somehow it’s always interlacing on playback and output if I don’t have the “Blend Fields” options checked (but I shouldn’t have to since it is progressive).
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Alex, there’s a free PDF whitepaper on the Sony site called “24p and Panasonic AG-DVX100 and AJ-SDX900” that might be of some help to you.
I realize that it’s not your specific camera but some of the 24p tips might prove helpful.
https://www.sonycreativesoftware.com/download/whitepapers -
[Alex Kidd] “So if it is indeed 29.97 with 2:3 pulldown, then shouldn’t Vegas just execute the pulldown if I brought it into its stock 24P timeline setting?”
Not necessarily. There are several ways of adding pulldown (for example 3:2 pulldown or 2:3:3:2 pulldown) and it sounds like Vegas is not using the same as your camera. There is nothing you can do about this except maybe find a 3rd party tool that would remove the pulldown correctly.
[Alex Kidd] “One other thing I’d like to ask – how does my timeline setting impact my render settings?”
The timeline ruler determines the timecode that is written to the file (SMPTE Drop, SMPTE Non-Drop, etc.) Other than that, it shouldn’t affect your render settings at all.
[Alex Kidd] “For example, if I have 29.97 interlaced footage and I bring that into a 29.97 progressive timeline and then output to 29.97 interlaced, does the output file differ compared to if I brought the 29.97 interlaced footage into a 29.97 interlaced timeline and output to 29.97 interlaced?”
The fact that your project is progressive has no affect on how you render. If you render interlaced it will be interlaced.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
[Alex Kidd] “No matter how I bring this footage in, I can’t seem to play it back without it being interlaced. I know for a fact that it is progressive, since the HVX captures everything progressive from the CCD, but somehow it’s always interlacing on playback and output if I don’t have the “Blend Fields” options checked (but I shouldn’t have to since it is progressive).”
You are confusing capture with delivery. It doesn’t mater that your camera captures progressive. It is delivering it in an interlaced stream and therefore the output is interlaced.
Now, because it was captured as progressive, each interlaced field will contain the same temporal information but as far as Vegas or any other software is concerned, it is interlaced footage.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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