720p 24 HDV to Apple Pro Res

[Sean Oneil]

[gary adcock] “Watch out because you will need to compensate for the incorrect aspect ratio of Media Manglers conversions to ProRes- MM maintains the original file’s aspect ratio on conversion rather than rendering the content as full raster.

I use QT player – it always handles the conversion correctly (and it is fast when using automater) “

Hold up now.

First of all, I’ve never seen this problem. I just tested it myself going from 1080i HDV to 1080i ProRes. It correctly converted the pixel aspect.

Secondly, Randy is working with 720p. 720p HDV is full-raster. 1280×720, square pixels. So even if this bug does exist, it doesn’t apply here.

[Randy]

This is great information guys and I really appreciate your time and the discussion. I think on this project I will go with the HDV footage I’ve already captured, edit in HDV and render in 720p 24 Pro Res. I would be interested to know if the HDMI output of the JVC BR-HD50 deck would be a good way to feed footage to the AJA iO HD unit to ingest as 720p 24 Pro Res in future projects. What do you think?

[Gary Adcock]

[Sean ONeil] “Secondly, Randy is working with 720p. 720p HDV is full-raster. 1280×720, square pixels. So even if this bug does exist, it doesn’t apply here. “

True– I missed that. thanks

[Sean ONeil] “I’ve never seen this problem. I just tested it myself going from 1080i HDV to 1080i ProRes. It correctly converted the pixel aspect. “

and what did you look at it in? something that is NOT an apple application?

there are a number of issues with MM handling of conversions, it is the same issue with Color and is even included in the Color read me file

https://www.apple.com/support/releasenotes/en/Color_1.0_rn/index.html#//apple_ref/doc/uid/TempBookID-ReplacedWhenAssociatingWithMessierRevision-CH1-DontLinkElementID_2

Color does not support anamorphic display of media. Anamorphic media is displayed with a 4:3 aspect ratio regardless of the anamorphic settings in the originating Final Cut Pro sequence.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows

[Sean Oneil]

[gary adcock] “and what did you look at it in? something that is NOT an apple application?

there are a number of issues with MM handling of conversions, it is the same issue with Color and is even included in the Color read me file”

No I just looked at it in Final Cut on my broadcast monitor. Final Cut said it was square pixels, 1920×1080. And video output confirmed it. The aspect ratio was proper.

I’m looking at the Color release notes now. I do see what you’re talking about, but it says it happens with mixed-format timelines. I tested an actual clip from the browser (no timeline) and it worked fine.

But believe me, we’re in 100% agreement as far as not blindly trusting Final Cut to convert anything properly.

[Gary Adcock]

[gary adcock] “and what did you look at it in? something that is NOT an apple application? “

[Sean ONeil] “No I just looked at it in Final Cut on my broadcast monitor. Final Cut said it was square pixels, 1920×1080. And video output confirmed it. The aspect ratio was proper. “

then you did not take a proper look at it.
that HDV / DVCPROHD converted to ProRes file will not play properly out of a stand alone video player app like AJA TV, nor will it play on most systems outside of FCP (in the ones that can see ProRes)

Apple wants you to stay within their tools, but that is not always possible in a real production workflow.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows