FORUMS: list search recent posts

Compressor Down Res Restated

COW Forums : Compression Techniques

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Fred Connors Jr.
Compressor Down Res Restated
on May 4, 2010 at 6:05:28 pm

We are seeing a problem with files made by Compressor 3.5.1.

Mac OSX 10.6.2
Compressor 3.5.1
Source files are DVCProHD 720p 24fps
Destination files are Apple ProRes 422 HS 720X486 SD 30fps Letter Boxed

The video settings are enabled and Interlaced LowerFieldFirst is selected.

We cannot determine if the file is Lower or Upper field dominate but the video appears to be interlaces, However Final Cut Pro reports that the file is Interlaced = None. Why?

If we change the output file to a DVCPro50 it works properly and Final Cut Pro reports that the file is Interlaced Lower.

So for now we must do a two step process:
Down Res to DVCPro50 SD interlaced and then reprocess into the Apple ProRes.

Any suggestions?

Fred


The Troupe - Modern Media Design & Production


Return to posts index

Daniel Low
Re: Compressor Down Res Restated
on May 4, 2010 at 10:30:39 pm

WHY oh why are you trying to interlace it!?

[Fred Connors Jr.] "We cannot determine if the file is Lower or Upper field dominate but the video appears to be interlaces, "

How does the video appear to be interlaced?


__________________________________________________________________
Sent from my iPad Nano.


Return to posts index

Fred Connors Jr.
Re: Compressor Down Res Restated
on May 5, 2010 at 12:27:15 pm

Daniel

The File ProRes file must be Standard Def Interlaced LowerField for distribution.

It appears, visually, to be interlaced because every other line of active video is offset form the previous line, the very definition of interlaced.

Can we focus on the issue at hand? Compressor does not set the Field Dominance value in the meta data for the file when the source file is DVCPro HD and the Destination file in ProRes.

Fred

The Troupe - Modern Media Design & Production


Return to posts index


Daniel Low
Re: Compressor Down Res Restated
on May 5, 2010 at 12:43:16 pm

Ok,

I'd suggest contacting Apple for support.

[Fred Connors Jr.] "It appears, visually, to be interlaced because every other line of active video is offset form the previous line, the very definition of interlaced. "

Can you post a screen shot?



__________________________________________________________________
Sent from my iPad Nano.


Return to posts index

Fred Connors Jr.
Re: Compressor Down Res Restated
on May 5, 2010 at 1:41:28 pm

I stand corrected.

The AppleProRes file does not appear to be interlaced.

The DVCPro50 File does appear to be interlaced.

I will report this to Apple.

Thanks



The Troupe - Modern Media Design & Production


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]