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Compressor aspect ratio dysfunction
I am a FCPX editor and I rarely use Compressor other than its presets. A broadcast TV client sent me a Compressor “Droplet” to run my final HD FCPX edit through to meet their specs. The FCPX edit sequence is at the HD standard of 1920x1080i @29.97 fps. The droplet is a settings preset for Compressor. The problem I am having is this; although the aspect ratio of the preset is clearly entered in properly as 720×486, the file renders out 640×480. This Compressor preset settings are SD anamorphic as well (I am aware of the “squeeze”). Why is it not rendering out at 720×486, but at 640×480 instead?
Thank you!
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24 Replies
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Here (below) is a screen shot of the specs of the Compressor rendered final that shows the problematic 640×486 “Display” setting. How did this get there? It was not in the preset.
Thanks
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Uncheck “add clean aperture”.
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Thanks Jeremy. What does this check box affect actually? Is it solely the display aspect ratio?
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Yes, that’s part of it.
Sometimes it attempts to push the movie in a bit to clean the edges.
QT7 had a lot more display options, QTX, does not. As long as the movie says 720×486, you should be fine, but unchecking that box might help.
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Ok I tried it with unchecking the box and still got the same result. So I’m still looking for the solution.
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Shouldn’t it display at 864×486 if it’s anamorphic SD? Not 640×486. That’s 4:3 display.
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Hi Bret,
Not sure. Notice the FRAME RATE says what it should say (720×486, ENCODED), but the DISPLAY says 640×486. Unchecking ADD CLEAN APERTURE caused no change. -
I don’t yet understand all the anamorphic stuff, but the Compressor preset came from the client and it does not do what they are asking it to do. The final render is 16×9 but has the bars on the sides and has squeezed the hd original to 4×3 with the bars. That was intentional. but the cannot accept it because of the aspect ratio is not 720×486.
Any other thoughts?
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640×486 (and it’s only for display!!) is going to look better as the pixels will square instead of rectangular.
If you still have QT7 on your machine, you can open the movie, click command-j, click the ‘presentation’ button, and click ‘conform aperture’ to ‘encoded pixels’. That will show you the non-square pixels.
If you need anamorphic, then you should set the aspect ratio as such.
Right now you have 4:3 selected.
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Sorry I misinformed with the 16×9 bars on the side. That is not the case. The frame is 4×3 squeezed (intentionally)
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