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Losing 16×9 aspect ratio in Compressor
After exporting an anamorphic 16×9 DV (standard def) sequence to Compressor and encoding with either H.264 or mpeg 4, my sequences end up being squeezed and not having the 16×9 aspect ratio.
* I make sure I click, “correct for pixel aspect ratio” in the viewer. I pull up the Geometry tab in the Inspector and there I get confused.
For preserving the 16×9, what do I set the following in the geometry tab?
Source inset:
Dimensions:
100% of Source? or one of the other options in the pulldown menu?
Output image inset:I have been successful in the past with encoding 16×9 sequences but something has changed and I have no idea what it could be. Have tried just about everything.
Version 3.0.5thanks,
Mark -
10 Replies
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H264 is normally for square pixel playback instead of the video’s 1.2 PAR. So if you make it 720×480 it will look incorrect.
Change the output to 640×380 and you will have true 16:9.
– Our software is idiot-proof, if you bought it it proves you are an idiot. – Dilbert
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640×360 actually.
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CRAP, I can’t even spell numbers! If I could only get paid by the typo.
– Our software is idiot-proof, if you bought it it proves you are an idiot. – Dilbert
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You guys are waaay to magnificent for words. I can’t thank you enough!
Now I’ve got to learn more about H.264 and its applications. It’s a beautiful codec!
Thanks again – I was up against a serious deadline.Mark
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I’ve been using Squeeze for h.264 because it was a LOT faster than compressor. I had to uncheck “maintain aspect ratio” and let it be freeform and then set the aspect ratio as stated above. But now I’m using Elgato’s h.264 turbo HD dongle and it’s presets. It’s sinfully fast.
Non-linear: all the time and nothing but.
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It’s been awhile since I’ve had to deal with this, and this may have changed recently, but it used to be that Quicktime did not recognize the 16:9 anamorphic flag that would automatically un-squeeze the image. So what you would need to do was to open the movie in Quicktime, select the A/V Controls window, select the video track, and then change the Display Size to 853 x 480.
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I too, remember doing that. It was a real pain.
Non-linear: all the time and nothing but.
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Should I use the 640×360 setting for mpeg 2 sd dvd’s as well?
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No Jagbir.
That size is OK for the web, but for standard DVD there are only two possible sizes: 720×576 for PAL and 720×480 for NTSC.
rafael -
Thank you very much for your advice. it is very much appreciated.
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