Upload At Constant Frame Rate H.264?

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Level 1

90 points

Upload At Constant Frame Rate H.264?

Happy New Year

FC6 - Trying to get smooth playing SD clips on Vimeo. Have already thoroughly checked settings as recommended by staff:

H.264

720 X 480

Using correct frame rate which is 29.97

Data Rate restricted to 4000 kbits/sec

Audio is not the problem.

Doesn't seem to matter whether I use 'Current Frame Rate', or type 29.97 in the export settings. Doesn't seem to matter whether I use Optimized for: 'Download' or 'Streaming'

The result is always a slight stutter throughout. Smaller sized test clips always play smoother despite the settings. The traffic? Doesn't seem to matter.

Any ideas?

Thanx

Mike

Mac OS X (10.4.11), #3 Dual Core 2.0 G5 Desktops

Posted on Jan 5, 2014 2:35 PM

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Answer 1

Studio X

Level 7

27,229 points

Jan 5, 2014 3:34 PM in response to ENIGMACODE

Get a faster internet connection.

x

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Answer 2

ENIGMACODE Author

Level 1

90 points

Jan 5, 2014 3:51 PM in response to Studio X

On the upload side? (both naturally).

Anyway, my internet connection is Fios - and it appears to be fine ....

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Answer 3

Meg The Dog

Level 6

13,561 points

Jan 5, 2014 4:28 PM in response to ENIGMACODE

Is your source SD footage interlaced? Vimeo will make it progressive, which will make motion and pans less smooth than when played as originally interlaced.

MtD

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Answer 4

ENIGMACODE Author

Level 1

90 points

Jan 5, 2014 5:15 PM in response to Meg The Dog

Hi Meg

That's an interesting point.

BTW, in export size settings I've always choosen: Compressor native 640 X 480, and put a check mark in 'Deinterlace'.

How do I tell if the my source footage is interlaced?

Thank you

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Answer 5

Meg The Dog

Level 6

13,561 points

Jan 5, 2014 5:22 PM in response to ENIGMACODE

In FCP, click on a source clip in the FCP Browser and, once selected, type Command + 9 to see the item properties for the clip.

Look where it says Field Dominance.

If is says "upper" or "lower" it is interlaced, and it is either displaying field one first "upper", or field two first "lower"

If it says none, then it is progressive.

MtD

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Answer 6

ENIGMACODE Author

Level 1

90 points

Jan 5, 2014 6:08 PM in response to Meg The Dog

Hi Meg - thanx for the info

My clips say: Lower (Even). I never checked this before. I hope all the clips are the same? Perhaps this is the defaulted setting?

In any event, I've always choosen: Compressor native 640 X 480, and put a check mark in 'Deinterlace' for the exports.

BTW, the solution although obvious to some, was to use a more 'current browser' for the upload, which I did. And it solved the problem. But getting back to my other question; what to select? Deinterlace, or leave it alone. Deinterlacing seems to help.

Thanx

Mike

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Answer 7

Jan 6, 2014 8:03 AM in response to ENIGMACODE

if your quicktime is for display on a computer screen whether locally or via the internet, and there's much movement in your visuals, you should always deinterlace in compressor. For the best quality, enable the frame controls in the frame controls panel, set output fields to progressive and deinterlace to best. This may take a long time to render so you might want to do a test of a short section by marking an in and out in the preview window. You can also greatly speed up compressor by setting up qmaster for distributed rendering.

http://www.digitalrebellion.com/blog/posts/using_compressor_with_multiple_cores. html

I generally use the apple: formats: quicktime: h264 preset and customize it in the encoder panel: video: quality to high for vimeo or youtube. If you use this method, you'll manually need to reset your pixel dimensions in the geometry panel to 640x480 square pixels and besure to set your resizing in the frame controls panel to best.

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Answer 8

ENIGMACODE Author

Level 1

90 points

Jan 6, 2014 4:13 PM in response to Michael Grenadier

Thank you Michael

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