Rendering to Quicktime Advice Needed.

MUTTLEY wrote on 3/6/2008, 5:13 PM

Got a 30 second HD spot that was shot on an EX1. I'm trying to render to Quicktime. Any advice on render settings? Trying the default settings (Audio: 44,100 Hz, 16 Bit, Stereo
Video: 23.976 fps, 1920x1080x32, Uncompressed) the file is ending up over 5gigs (which don't seem right for 30 seconds and wont fit on a 4.7 gig data dvd) but whenever I try to tinker with the settings it just looks bad.

- Ray
Some of my stuff on Vimeo
www.undergroundplanet.com

Comments

Coursedesign wrote on 3/6/2008, 5:48 PM
Uncompressed HD is big, 5GB+ for 30 seconds isn't so bad...

QT is a wrapper, what is the end use for your clip?

That determines what codec to pick in QT.
MUTTLEY wrote on 3/6/2008, 7:03 PM

I'm going to burn the data file to DVD for the local FOX channel, want to give them as high a quality as is possible but under 4.7 gigs.

- Ray
Some of my stuff on Vimeo
www.undergroundplanet.com
apit34356 wrote on 3/6/2008, 7:44 PM
Ray,render the 30 sec clip into parts------I mean render sections of the clip based on motion, this should permit a wide range in bit rate, but reduce final size. Then use qt to merge them together ... or your favorite post editor..
essami wrote on 3/7/2008, 1:11 AM
Hi Ray,

I assume you are trying to view the files in Quicktime player. Try looking at the finished render in VLC player or other players and it should look ok. Quicktime has a weird manner of playing back the files at full framerate at the cost of the resolution. This only effects playback though and the file should be ok.

Sami
Coursedesign wrote on 3/7/2008, 10:28 PM
...I mean render sections of the clip based on motion, this should permit a wide range in bit rate, but reduce final size.

Uncompressed codecs are not VBR. Variable Bit Rate is a feature of various compression schemes such as MPEG-2 used for standard DVDs.

You should ask the station what codecs they can accept. There are lots of great codecs with minimal degradation (read invisible in practice).

If you want to stay uncompressed, make a dual layer data DVD, and be aware that playing uncompressed HD takes RAID disks to keep up.

Cheno wrote on 3/8/2008, 7:32 AM
I agree with Course - call the station and find out what codecs they support and what software they're going to be cutting spots together with, or rendering them out to whatever will work with their media que.

I deliver HD 720p to a couple of theatre chains and 30 seconds is usually about 6 - 8 gigs uncompressed which is what they ask for. I just deliver on a drive.

cheno
Laurence wrote on 3/8/2008, 7:51 AM
I've heard of people using mpeg2 at very high bitrates to deliver video for broadcast. Virtually everybody can play back mpeg2 these days, and at high bitrates it is going to look very good.