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Placing MOOV atom at beginning of mp4 file
Hi, I’ve been asked to encode a video to the following specs: 1024×576 mp4 around 800 Kbps video, 64 Kbps 44,000 audio with the MOOV atom at the beginning of the file.
I have two problems doing that in AE:
1. The output settings refuse to encode an mp4 at 1024×576, saying it must be constrained to 720×576.
2. There doesn’t appear to be a setting for ‘Fast Start’ or ‘Progressive Download’ or anything else that might be related to the MOOV atom.I looked also for third party solutions to the MOOV problem (ie output to prores and then put through something else) and couldn’t find anything for OSX, only a few things for Windows. Any help with this would be greatly appreciated!
Robin King
http://www.robinking.com -
9 Replies
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I don’t know if this will help out, but it seems to contain a lot of info on the MOOV Atom:
https://www.adobe.com/devnet/video/articles/mp4_movie_atom.html
Joe Bourke
Owner/Creative Director
Bourke Media
http://www.bourkemedia.com -
This may also be of help:
https://mp4creator.sourceforge.net/
Joe Bourke
Owner/Creative Director
Bourke Media
http://www.bourkemedia.com -
Check out Handbrake – has Mac, Windows and Linux versions – all under GNU licence. Not sure if it has your moov atoms requirements, but it does have a number of options to encode.
Thomas Leong
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Thanks – I have Handbrake, but I don’t see any relevant options.
Robin King
http://www.robinking.com -
If it is a matter of muxing, perhaps this for Mac –
https://code.google.com/p/subler/as pointed out by the Handbrake FAQ.
Thomas
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Thanks, I got that and it will be useful in the future. In the end, I found AtomicParsley which (when I figured out how to use a CLI app!) allowed me to see the MooV atom location. I found the best output method was to output Prores from AE, then run that through Wonder__ Video Converter. (Incidentally MUCH better quality h264 output than AE). Haven’t got final approval back from client yet, but I’m confident that’s the one.
Robin King
http://www.robinking.com -
I found a little Mac utility that does this (and only this) called QTIndexSwapper2 – not sure if it’s still around. Having said that, it seems that most encoders now correctly set the MOOV atem, and so I haven’t had to use it in a long while.
(Just noticed there’s a link to it in that Adobe article that Joseph posted a link to.)
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Useful links which helped me:
https://github.com/danielgtaylor/qtfaststart
https://fabiensanglard.net/mobile_progressive_playback/index.php
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