MeGUI Metadata

ron spencer · 30th January 2016, 03:21

I've noticed that MeGUI (x264 component) does not write GOP meta data to the resulting encoded file. See attached.

The left hand mediainfo does not show GOP metadata...that is, no GOP:M=3,N=29. The left hand side encode was done with MeGUI and the right hand side with Adobe Media Encoder (others behave same way). I like to see such info written. Is there anything I need to check as an option in MeGUI to add the GOP metadata in?

thanks

poisondeathray · 30th January 2016, 07:02

Your attachment is pending approval, but I'm assuming you are referring to what mediainfo says - Megui doesn't write it, nor does the encoder x264

It will appear in mediainfo if you disable adaptive b-frame decision (--b-adapt 0) and scenecut (--no-scenecut) . Which is basically a bad idea most of the time and reduces efficiency. The GOP size and makeup will be fixed, static, and not adapt according to the content (encoder won't adapt in terms of b-frame placement or insert I frames for big changes)

30th January 2016, 03:21	#1 \| Link
ron spencer DVD Magistrate Join Date: Dec 2003 Location: Sodor Posts: 991	MeGUI Metadata I've noticed that MeGUI (x264 component) does not write GOP meta data to the resulting encoded file. See attached. The left hand mediainfo does not show GOP metadata...that is, no GOP:M=3,N=29. The left hand side encode was done with MeGUI and the right hand side with Adobe Media Encoder (others behave same way). I like to see such info written. Is there anything I need to check as an option in MeGUI to add the GOP metadata in? thanks Attached Images

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30th January 2016, 07:02	#2 \| Link
poisondeathray Registered User Join Date: Sep 2007 Posts: 5,374	Your attachment is pending approval, but I'm assuming you are referring to what mediainfo says - Megui doesn't write it, nor does the encoder x264 It will appear in mediainfo if you disable adaptive b-frame decision (--b-adapt 0) and scenecut (--no-scenecut) . Which is basically a bad idea most of the time and reduces efficiency. The GOP size and makeup will be fixed, static, and not adapt according to the content (encoder won't adapt in terms of b-frame placement or insert I frames for big changes)