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Apple Color Testing Part 1 - DVCPro HD 1080i/50

COW Blogs : walter biscardi's Blog : Apple Color Testing Part 1 - DVCPro HD 1080i/50

I've started my in-depth testing with Apple's Color and my first tests show that DVCPro HD 1080i/50 material is a major problem in Color.Test One:I opened Color and brought in a 1080i/50 DVCPro HD clip to a timeline.1 - The clip shows as 1920x1080 DVCPro HD and not 1440x1080 like it should.2 - I cannot select DVCPro HD for the codec anywhere.3 - I cannot set the Frame Rate to 25. It is greyed out in 23.98.

UPDATE - This was operator error, frame rate needs to be set before adding a clip.4 - What rendered out was a 10bit uncompressed 4:2:2 file. I could not render out a DVCPro HD File.Now for this test I simply brought in a single clip, I did NOT export a timeline from Final Cut Pro. BUT I should be able to work with a single clip or clips correctly in Color without having to come in from an FCP timeline. So at least for this test, poor performance from Color.

Test Two:Send To Color a 45 second timeline from FCP. 1080i/50 DVCPro HD timeline.Frame Rate - 25Frame Size - 1920x1080, this is wrong. Should be 1440x1080 but there's no way to change this.Render out the project and Send To Final Cut Pro.Frame Rate - 25Frame Size for the clips - 1280 x 1080. This is still wrong, that's the 1080i/60 Frame Size NOT 1080i/50. Should be 1440x1080 and in fact, the Sequence that opens up in FCP IS correct 1440x1080. The clips are rendered wrong.Image Quality - I'm seeing bad rasterization on any vertical or horizontal lines and an overall degradation in quality from Color. Video has taken a bad image quality hit in the Render from Color most likely due to the incorrect frame size.

Test Three:Same as above, but this time Render out Export to ProRes 422 (HQ)The Sequence that opens up in FCP is a 1080i/50 DVCPro HD Sequence. This is strange because I chose ProRex 422 (HQ) as the export / Render option.Clip Properties - 1280x1080. Still wrong. If I'm in a DVCPro HD 1080i/50 timeline, then this frame size HAS to be 1440x1080.Pixel Aspect - 1280x1080. Wrong.Image is squished left to right so it fits right inside the Action Safe area. Appears this way on the Kona 3 playback as well. I checked the Distort in the Motion tab and it's set to 0 so no distortion is being applied to the clip.Playback is very clean and sharp, but the frame size is all wrong so it's useless. Scaling it out to 112% and distorting it just screws up the image.

Workaround for Test Three, works, sort of:Render out from Color to the ProRes (HQ) format.Send To Final Cut Pro and open the new timeline in FCP.Create a New Timeline and select the Apple ProRes (HQ) 1440x1080 Preset.Change the Frame Size to 1280x1080Change the Aspect Ratio to HD (1280x1080)Change the Pixel Aspect Ratio to HD (1280x1080)Say OK.Copy All from the timeline from Color.Paste into that new Modified Timeline.Select All Clips in the new modified timeline.Remove Attributes > DistortThat removes a 12% distortion on all the clip and at last you see your clips in regular 16:9 resolution, albeit in the wrong frame size, but there you go.Ah, but you still need to re-render the entire timeline before you can output to tape because I see green "Preview" line above my entire timeline.

Conclusion:Definitely looks like Color has no clue how to handle DVCPro HD 1080i/50 correctly as the frame size / pixel aspect is completely wrong



Posted by: walter biscardi on Jun 22, 2007 at 6:33:00 amComments (1) editing, apple, final cut pro

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Apple Color DVCPro HD 1080i/50 with Color 1.01
by walter biscardi

Revised Tests using Color 1.01

Test One:
I opened Color and brought in a 1080i/50 DVCPro HD clip to a timeline.

1 - The clip shows as 1920x1080 DVCPro HD and not 1440x1080 like it should.

2 - I cannot select DVCPro HD for the codec anywhere to Render. "Original Format" is greyed out. I selected ProRes HQ

3 - Send to Final Cut Pro. A new ProRes Sequence opens, verify that the clip and the Sequence are both ProRes HQ 1080i/50 (25fps).

3 - Image quality is stuttery and completely unusable. Almost like it's missing fields or something, has a strobe like quality to it.

Test Two:
Send To Color a 45 second timeline from FCP. 1080i/50 DVCPro HD timeline.

Frame Rate - 25

Frame Size - 1920x1080, this is wrong. Should be 1440x1080 but there's no way to change this.

Render out the project and Send To Final Cut Pro.

Frame Rate - 25

Frame Size for the clips - 1440 x 1080. This has been corrected.

Image Quality - Pristine, This has been corrected.

Test Three:
Same as above, but this time Render out Export to ProRes 422 (HQ)

The Sequence that opens up in FCP is a 1080i/50 DVCPro HD Sequence. This is strange because I chose ProRex 422 (HQ) as the export / Render option.

Clip Properties - 1440x1080. This is correct and has been fixed.

Clip format - DVCPro HD 1080i/25. This is incorrect. I rendered the files in ProRes HQ, not DVCPro HD. Also, all of the clips are squished horizontally. Checking the Motion Tab I see that all of the clips have a Distort of 33.33 applied for some reason.

Remove Attributes - Distort and the clips play fine, but this is completely wrong. I should have ProRes HQ clips, not DVCPro HD clips. I even did the "Send To" Color process a second time and I'm still seeing DVCPro HD clips, not ProRes.

Playback is very clean and sharp but it's the wrong format.

Conclusion:
DVCPro HD 1080i/50 has been improved but there is that weird issue with trying to render it in Pro Res HQ.



Professional Video Editor, Producer, Creative Director, Director since 1990.

Credits include multiple Emmys, Tellys, Aurora and CableAce Awards.

Creative Director for Georgia-Pacific and GP Studios, Atlanta. Former Owner / Operator of Biscardi Creative Media. The show you knew us best for was "Good Eats" on the Food Network. I developed the HD Post workflow and we also created all the animations for the series.

Favorite pastime is cooking with pizza on the grill one of my specialties. Each Christmas Eve we serve the Feast of the Seven Fishes, a traditional Italian seafood meal with approx. 30 items on the menu.

If I wasn't in video production I would either own a restaurant or a movie theater.

 




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