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Aspect ratio settings in MPEG Streamclip

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Bobby Hall
Aspect ratio settings in MPEG Streamclip
on May 11, 2016 at 1:58:00 am
Last Edited By Bobby Hall on May 11, 2016 at 1:59:57 am

I'm creating my editing demo reel in FCP 7 and I'm using three sources of footage. My sequence settings in FCP will be 1920x1080.

The first is 1920x1080 ProRes 422 .mov files. The other two are DVDs that I'm converting to .mov using MPEG Streamclip.

When I open the first DVD in MPEG streamclip and click "show stream info" it says it's 720x480 4:3 and when I click on "export to quicktime" the default setting is 640x480. Does this mean the aspect ratio of the entire image of the DVD is 720x480 and the image minus the black bars is 640x480? And should I leave the setting at 640x480?

The "show stream info" for the second DVD says 720x480 16:9 and when I click "export to quicktime" the default setting is 854x480 (16:9). Two other options are 720x480 (unscaled) and 720x480 (DV-NTSC).

Is it wise to put 854x480 footage in a 1920x1080 timeline in FCP 7? And could you also create an 854x480 sequence in FCP 7?

What's the difference between 720x480 (unscaled) and 720x480 (DV-NTSC)? And should I choose one of these over the 854x480 setting?

Thanks.


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Shane Ross
Re: Aspect ratio settings in MPEG Streamclip
on May 11, 2016 at 4:40:15 pm

[Bobby Hall] "Is it wise to put 854x480 footage in a 1920x1080 timeline in FCP 7?"

Sure. It's 16:9. You will have to scale it up and render, but that's it.

[Bobby Hall] "And could you also create an 854x480 sequence in FCP 7?
"


No. That's non-standard frame size, and FCP 7 doesn't like non-standard. SD was always 4:3, and the footage was letterboxed, or anamorphically squeezed, to accommodate that. You have extracted and un-anamorphically squeezed it...which is fine for what you are doing.

Shane
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Read my blog, Little Frog in High Def


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Bobby Hall
Re: Aspect ratio settings in MPEG Streamclip
on May 11, 2016 at 8:46:40 pm

Thanks for the info!


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Bobby Hall
Re: Aspect ratio settings in MPEG Streamclip
on May 12, 2016 at 3:00:25 am

When I open up one of the DVDs in MPEG Streamclip and click "show stream info" it says it's 720x480 and when I choose to convert it to .mov it defaults at 640x480. I converted it to this aspect ratio as well as 720x480 to see the difference and they both look exactly the same. Why is this?


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