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Compressor droplets - any way to make an XDCam CBR?

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J. Tad Newberry
Compressor droplets - any way to make an XDCam CBR?
on Mar 31, 2010 at 3:03:55 am

I know there is one for VBR, but was hoping to create a droplet for CBR as it creates a file about 30% smaller than VBR, and seems to render out of FCP about 5 times faster. I'm converting my HDV files for editing and this seems to be the best way to go so far...

I tried altering the VBR settings in Compressor to make a CBR droplet but didn't see anyway to alter it to CBR.

Thanks again!

J. Tad Newberry
Big Ya Productions
Mac Pro 2.66 GHz Quad-Core
3 GB RAM
http://www.bigya.tv


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Jeremy Garchow
Re: Compressor droplets - any way to make an XDCam CBR?
on Mar 31, 2010 at 3:09:03 am

I could be wrong, but I don't think XDCam or HDV work that way.


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J. Tad Newberry
Re: Compressor droplets - any way to make an XDCam CBR?
on Mar 31, 2010 at 4:48:01 am

You can make a droplet for XDCam VBR, but not CBR. My workaround right now is to go into FCP, select all from the folder of clips and do a batch export as XDCam CBR. Working fine this way...(but a droplet would be mighty dandy, too!)

Thanks again!

J. Tad Newberry
Big Ya Productions
Mac Pro 2.66 GHz Quad-Core
3 GB RAM
http://www.bigya.tv


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Wayne Carey
Re: Compressor droplets - any way to make an XDCam CBR?
on Mar 31, 2010 at 2:07:15 pm

Hey Tad,

Can I ask why you are doing this?

HDV and XDCAM HD CBR are the same. XDCAM HD CBR is nothing more than HDV 25 mbit. So basically, you're converting to the same format, just a different name. Look in FCP after you convert a file. FCP will report this file as Apple HDV, not XDCAM HD.

Can you fill us in on your workflow?

Maybe I can help you streamline it a little. We shoot primarily in XDCAM HD VBR (1080p30) and edit using either XDCAM HD or DVCProHD. We prefer the DVCProHD format because of the turn-around times (faster renders).

_______________________________

Wayne Carey
Schazam Productions
http://web.mac.com/schazamproductions
schazamproductions@mac.com


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J. Tad Newberry
Re: Compressor droplets - any way to make an XDCam CBR?
on Mar 31, 2010 at 5:16:13 pm

Glory Be! You're exactly right, on theHDV/HDCam CBR naming! I never noticed that. I'm cutting a show from two HDV cameras, and know that HDV can be a little slow for FCP, so was wanting to first convert to something faster. I had tried DVCPro HD as well, but noticed the file size still several times larger than even HDCam VBR, and CBR was smaller and rendered faster so that's why i was choosing it...never noticing that it ended up being the same thing i started with! Gyarsh...

Well, i just did a render test. I took a native HDV file, :25 long, converted it to Pro Res 422 HQ 1440, DVCProHD, and XDCam VBR. Took each new clip, put it on it's own native timeline, then rendered out that single file from FCP and noted the render time and file size. Then took each new QT file and dropped it on my H.264 droplet and noted that render time:

From a :25 original HDV clip

Codec Render out from FCP File Size Render to H.264
Pro Res 422 HQ :24 581 MB :44
XDCam VBR :05 112 MB :28
HDV :05 81 MB :23
DVCProHD :14 357 MB :24

From this table, it seems like it is always best to leave HDV as HDV. Faster rendering on both ends and smaller file size...BUT, it seems when i have a full time line of tons of HDV clips, transitions, graphics, etc., it seems like the HDV stuff takes longer to render...but i haven't done a test like the above for full time lines. Most people here are saying it is not efficient for the computer to use HDV clips, so best to convert....but in this instance, i'm not seeing the benefit.

So, my final project goes out to one client as an HD QT file on a hard drive, and to two others as an SD master on BetaSP tape.

Thanks again!

J. Tad Newberry
Big Ya Productions
Mac Pro 2.66 GHz Quad-Core
3 GB RAM
http://www.bigya.tv


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Wayne Carey
Re: Compressor droplets - any way to make an XDCam CBR?
on Mar 31, 2010 at 8:00:10 pm

[J. Tad Newberry] "From this table, it seems like it is always best to leave HDV as HDV. Faster rendering on both ends and smaller file size...BUT, it seems when i have a full time line of tons of HDV clips, transitions, graphics, etc., it seems like the HDV stuff takes longer to render...but i haven't done a test like the above for full time lines. Most people here are saying it is not efficient for the computer to use HDV clips, so best to convert....but in this instance, i'm not seeing the benefit.

So, my final project goes out to one client as an HD QT file on a hard drive, and to two others as an SD master on BetaSP tape. "


Ok... Now, you see what I'm talking about. But for your final output, you can make it whatever you want. That means rendering, though... But you have to look at it this way, do I want longer render times in my edit or one longer render to another format on output?

_______________________________

Wayne Carey
Schazam Productions
http://web.mac.com/schazamproductions
schazamproductions@mac.com


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J. Tad Newberry
Re: Compressor droplets - any way to make an XDCam CBR?
on Mar 31, 2010 at 10:40:48 pm

i would enjoy less rendering and faster screen redraws during editing...

Thanks again!

J. Tad Newberry
Big Ya Productions
Mac Pro 2.66 GHz Quad-Core
3 GB RAM
http://www.bigya.tv


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