HD Editing Questions at DVinfo.net

John Jaquish · April 6th, 2009, 10:57 PM

Hello.

I shot some HD footage over the weekend for the first time and wanted to make sure I understand everything correctly.

I shot on an HVX in 1080i 24p, recorded to a hard drive. Now, when I transferred the files to my computer, they are in 1080i60 DVCPRO HD format. So, it's not actually 24p in this format. The only way to get it to 24p would be to uncompress it. But, would I even have any use for uncompressed HD if my output plan is to upload to the internet and to put on an SD DVD? Thus, any reason/way for me to use the 24p?

Thank you in advance.

Tripp Woelfel · April 7th, 2009, 07:23 PM

Quote:

Originally Posted by John Jaquish

... when I transferred the files to my computer, they are in 1080i60 DVCPRO HD format. So, it's not actually 24p in this format. The only way to get it to 24p would be to uncompress it.

Not necessarily. If you have Premier, you can select the clips in the bin and interpret the footage to 24p, then you should be good to go. I know this works with DV and HDV. By extrapolation it should work for DVCPRO but I don't know.

Other NLEs have this functionality too.

Mike Barber · April 7th, 2009, 07:41 PM

Quote:

Originally Posted by John Jaquish

The only way to get it to 24p would be to uncompress it. But, would I even have any use for uncompressed HD if my output plan is to upload to the internet and to put on an SD DVD?

You seem a bit confused. You can't "uncompress" your footage. You could transcode your DVCPROHD footage to an uncompressed codec, but that doesn't give you back whatever information was lost when the camera initially encoded the video as DVCPROHD. Furthurmore, the video codec and the video framerate are mutually exclusive; they are independent attributes.

What I suspect is going on is that you need to removed the 3:2 pulldown with which I believe your footage was recorded. You would need to consult your NLE software user manual for detail on how to do that with whatever it is you are using to edit. After the pulldown is removed, your 29.97 fps footage will then be 23.98 fps.

John Jaquish · April 8th, 2009, 09:46 AM

Quote:

Originally Posted by Mike Barber

You seem a bit confused. You can't "uncompress" your footage. You could transcode your DVCPROHD footage to an uncompressed codec, but that doesn't give you back whatever information was lost when the camera initially encoded the video as DVCPROHD. Furthurmore, the video codec and the video framerate are mutually exclusive; they are independent attributes.

What I suspect is going on is that you need to removed the 3:2 pulldown with which I believe your footage was recorded. You would need to consult your NLE software user manual for detail on how to do that with whatever it is you are using to edit. After the pulldown is removed, your 29.97 fps footage will then be 23.98 fps.

You're right. I am confused, hence my question.

Thank you for the advice. I'll see about removing the pulldown in FCP and how it effects the footage.

April 6th, 2009, 10:57 PM	#1
John Jaquish New Boot Join Date: May 2007 Location: Pittsburgh, PA Posts: 21	HD Editing Questions Hello. I shot some HD footage over the weekend for the first time and wanted to make sure I understand everything correctly. I shot on an HVX in 1080i 24p, recorded to a hard drive. Now, when I transferred the files to my computer, they are in 1080i60 DVCPRO HD format. So, it's not actually 24p in this format. The only way to get it to 24p would be to uncompress it. But, would I even have any use for uncompressed HD if my output plan is to upload to the internet and to put on an SD DVD? Thus, any reason/way for me to use the 24p? Thank you in advance.