Compressor VS. Quicktime Pro

[Lisa Rolley]

Wow thank you so much for including a grab ofthe settings – unfortunately this is exactly how i set everything and it is still not ltrbxing the clip!

This also brings up another question for me which is about qmaster and using all cores – does quicktime work as fast as compressor when u have set qmaster to use all of the cores on the computer?

Not sure why the ltrbxing does not work but i am stumped – ughhh!

best

Lisa : )

[Hector Berrebi]

hi Lisa

this is an old question… pops up all the time

in the filters tab, set your controls to this…

make sure you select your project properly like in the second image

should do the trick on any output, not just 264.

compressor is so much better than QT for encoding and compressing.

you can use many things to put a nail in a wall… but better use a hammer 🙂

Hector Berrebi
Schibber Group
prePost Consulting

[Lisa Rolley]

Hello

When i try both of your settings guys it squashes the frame – i need to identically match the job that qt pro does in terms of the letrbxing – that is, it does not change a circle into an oval and the area where the ltrbxing occurs is exactly the same as what qt pro is doing.

Bottom line is i have tried both of your methods and neither are correct so if you can please let me know what else i could be doing wrong that would be great.

Best Lisa

[Rafael Amador]

Your not playing the movie with QT Player, don’t you?
rafael

http://www.nagavideo.com

(and here some clips for the friends: https://www.vimeo.com/2694745 )

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[Lisa Rolley]

wait what?

[Tom Brooks]

Maybe you need to back up here. I can see that the two methods do not match, but which one is correct is another story. Exactly what is the spec you need to deliver and exactly how will this video be used in its final form?

[Lisa Rolley]

i am just trying to no longer use qt pro when i need to ltrbx hd material into sd (i.e. 1920×1080 into 720×486 ltrbx)

The results i get with qt pro are what i want to match exactly in compressor – whether it be for uncompressed 10 bit or h.264 – web, tv, whatever regardless i am just changing resoltuion – not adding fields or changing frame rate – i would use After Effects for that…and now i am beginning to think it might just be easier to use AE for this i nthe future…

orginally i wanted to kill 2 birds with one stone – that is do the ltrbxing AND make it an h.264 but i could npot even get the ltrbx to be correct and match what qt pro does exactly.

this seems like such a standard question and yet all the responses have given me qt files which do not match what qt pro does.

thank you for your patience and willingness to help me get to the bottom of this

If you or anyone else has ideas as to what i am doing wrong please shed the light baby!

best

lisa

[Llewelyn Roderick]

Dear Lisa

You are 90% home on this one, you have just missed one very important step. The geometry tab has three sections:
1. source
2. dimensions (ie the output size you want)
3. padding (how to negotiate between diff aspect ratios)

So in your example you’ve told compressor your dimensions, but you haven’t told it what to do with the aspect ratio.

Simply (yep it is) click on padding and select your source aspect ratio. In your case you’ll select 16:9 and hey presto, compressor will automatically add the necessary letterboxing without cropping your image. (cropping is a diff function).

You can check that it has worked by looking at your source clip in the Preview window. There should be a red line in the middle of the image with the source on the left and a preview of what compressor is going to do on the right. You should see the letterbox. DON’T worry about the fact that it looks squashed. It renders perfectly.

Hope this unblocks your pipeline

Llewelyn

Llewelyn @ Fireworks
HD for indies post production
http://www.fireworksfilms.co.za

8Core 2.8Ghz 10GB RAM with BM Decklink HD Pro, 2TB Raid, 20″ Sony PAL SDI CRT & 19″ Sony HD SDI LCD + 4Core 3Ghz edit 2