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Convert large HD file to under 2 GB

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Bobby Hall
Convert large HD file to under 2 GB
on Aug 23, 2013 at 5:37:42 am

I have an 18 minute short that I want to submit online to a festival that requires the video to be under 2 GB. Right now, it's 18 GB, 1920x1080 prores 422. I've tried different ways to get it under 2 GB, but I can't seem to do it. I'd like it to be 1280x720 and look really good. How can I do this is mpeg streamclip?


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Spencer Averick
Re: Convert large HD file to under 2 GB
on Aug 23, 2013 at 9:05:05 am

Set the video codec to H.264, change the data rate to 2500 and you can keep it at 1280x720.


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Neil Patience
Re: Convert large HD file to under 2 GB
on Aug 23, 2013 at 5:38:58 pm

Spencers suggestion is a good one. In MPEG streamclip there are some presets for Apple TV which are H264 MP4. Never had an issue with quality or PC/Mac compatibility.
There is a 720 preset and I have always found these to be good quality conversions at a reasonable bit rate. Basically its pretty much the same quality as you would get from a movie downloaded from iTunes.
Hope thats helpful.

best wishes
Neil
http://www.patience.tv

8 Core MacPro, Kona 3, Tangent Wave, Mackie Universal Symphony 6.5 FCP7
i7 2.7 Gig MBP (non retina) 16Gigs Ram Blackmagic Monitor Mini Symphony 6.5 FCP7


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Jacob Brown
Re: Convert large HD file to under 2 GB
on Aug 23, 2013 at 5:44:35 pm

If you are using compressor or something like that, be sure to pay attention to the key frame setting in the H264 conversion.

If you have a lot of fades or composites or effects or the like. Or rapid camera movements. Or a few other things....then you will want to do a keyframe every few frames. Otherwise you can get weird compression artifacts.

It's basically a keyframe every X number of frames. Lower that number is higher quality, bigger file size. So just play with it until you like the output and file size.


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Bobby Hall
Re: Convert large HD file to under 2 GB
on Aug 24, 2013 at 12:01:53 am

Thanks guys.
I played around with the bit rate settings in MPEG streamclip and got the video under 2GB with the bit rate set at 6,000 kbps.


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