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Mpeg-2’s outputting 640×480 files??
I am using Compressor 1.2.1 on a G4 Powerbook.
I have been editing skateboarding footage shot on DV with Final Cut Pro
Using the Mpeg-2 60 min HQ encode width 720, height 480, aspect ration 4:3, field dominance bottom first I still get a file that says 640×480.And actually this has not presented itself as a problem because DVD Studio Pro recognizes the files as 720×480.
My concern is this, I have brought the compressed Mpeg-2’s into FCP sot that I may preview them on my broadcast monitor . They import as 640×480, which makes me think that DVDSP is stretching the files to 720×480, there by compromising quality.
Whatever the case may be, I have the preset set up to output a 720×480 file, but finder says it’s 640×480 and FCP agrees.
Any help?
Luke
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2 Replies
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NTSC DV footage should have a 3:2 aspect ratio, correct?
The only options compressor gives me are 16:9 and 4:3.Why is that?
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Actually, all is well.
While NTSC DV has a 3:2 pixel ratio (720×480), the image aspect ratio is always either 4:3 or 16:9, which is why you have those settings. Its being encoded internally as 720×480. The 640×480 QuickTime reports is the post-aspect-ratio-correction size – QuickTime Player squishes the video to 640×480 to provide the 4:3 aspect ratio.
So, don’t fret it. It’s all working according to plan.
My Book: https://www.benwaggoner.com/books.htm
Squeeze and ProCoder tutorials: https://www.classondemand.net/benwaggoner/
Compression Class at Stanford: https://www.digitalmediaacademy.org/compression.html
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