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Old 25th May 2011, 13:01   #21  |  Link
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Originally Posted by Cyberpro60 View Post
I have two small niggling questions though: When I recompile using FFMPEG and run the final output through MediaInfo there is no listing for "encoder settings" and therefore no way to determine if this file has open or closed GOPs. Can anybody explain this please?
It seems that your version of ffmpeg simply does not write the custom SEI with these infos (for whatever reason). It should work with the builds from here.
For some reason ffmpeg's preset medium seems to have open-gop "1" as default, though.

Last edited by sneaker_ger; 25th May 2011 at 13:06.
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Old 26th November 2011, 10:53   #22  |  Link
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Originally Posted by sneaker_ger View Post
But x264cli and most GUIs have open-gop disabled by default, so chances are this might not be the problem after all. (But look for yourself)
It seems that MeGUI presets are mostly with open GOP enabled, I just faced this issue and found the solution in this thread.

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Old 23rd September 2015, 14:26   #23  |  Link
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See discussion here for the final answer with x264 encode

Use the option 'stitchable' from x264

Thanks to this option, you can do several x264 encodes, mux into MP4, concatenate your MP4 and now final file is seekable.
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mp4, seek problem

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