QuickTime MPEG2 Component

[Simon Carlson-thies]

The issue becomes your using a very compressed codec (DV), and you are then compressing it more. The problem becomes that because programs don’t handle compression in the same way you end up with the type of problems that you have been dealing with.

best of luck

Simon Carlson-Thies

[Alexander Kallas]

[Simon Carlson-Thies] “The issue becomes your using a very compressed codec (DV), and you are then compressing it more. The problem becomes that because programs don’t handle compression in the same way you end up with the type of problems that you have been dealing with.

best of luck

Simon Carlson-Thies”

Excuse me Simon,
but to which of the above posts is this a reply to?

Cheers
Alexander

[Simon Carlson-thies]

The post I put it under…

If you work in DV you should expect these problems, compression issues… thats why you should work in uncompressed or HD…

The problem of color space, and gamma… is less the problem, then the fact that its DV… and that you are dealing with compressed footage, which is always more difficult to work with…

But this is just my opinion, since I don’t like DV, its hard to composite with and color correct.. since there isn’t a lot of color information in the frames.

Simon Carlson-Thies

[Alexander Kallas]

[Simon Carlson-Thies] “in DV you should expect these problems, compression issues… thats why you should work in uncompressed or HD…”

But isn’t HD compressed as mpeg2 in the 4:2:0 colorspace?

Cheers
Alexander

[Gunleik Groven]

[Alexander] “But isn’t HD compressed as mpeg2 in the 4:2:0 colorspace?”

HD, like SD comes in all flavors. What you are refering to is HDV which is even more compressed and with a considered worse GOP fram compression, than the i-frame based DV.
HDV and DV has the same dataflow, so the calculus does not look too good for HDV.

The point is: Go un-/less- compressed for aqusition and editing, then you can finish to any format.

Gunleik

[Alexander Kallas]

[Gunleik Groven] “The point is: Go un-/less- compressed for aqusition and editing, then you can finish to any format.”

Of course,
But it’s like saying, be Bill Gates, and you don’t have to compromise on equipment. I’d LOVE something like a Varicam,
but I’ll bet most of this forum uses DV. It’s all about the $$$$$…..

Cheers
Alexander

[Brent Altomare]

So here’s the resolution(s)

1) QuickTime 6 has the MPEG2 output option, QuickTime 7 doesn’t. If you UPGRADE from QT6, you retain the option, if you directly install QT7, you don’t have it

2) It appears that going to a 1-pass method of encoding has solved my Compressor quality issue (as much as I still think it’s weird).

Thanks to everyone who chimed in with suggestions! Once again, the COW comes through!

—
Brent Altomare
Groovy Like a Movie
(877) 3-GROOVY

[Alexander Kallas]

Interesting,
Re the link that Don G posted; https://www.visiontracks.com/compressortests/
It must be the Codec, and/or interlaced v. progressive scan, ( the comparison between FCP>Compressor and QT>Compressor was in the DVCPro-50 30p format ).
I could not get a gamma difference with DV PAL interlaced.

Cheers
Alexander