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Old 3rd August 2018, 10:48   #27561  |  Link
ggtop
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Join Date: Mar 2003
Posts: 311
Quote:
Originally Posted by AmigaFuture View Post
After a few tests..I can confirm that BD-RB (by way, MP4Box) has a sync problem. I'm able to import some TS/MKV files and Alternatively create MKV/MP4 and only MKV sync is fine.
Hi AmigaFuture,

in case BD-RB detects a delay it instructs MP4Box to use a delay on that audio stream like this:

mp4box -add video_file -add audio_file:delay=<delay>:lang=<lang> -new output

Be aware that this delay is set on container level only.
My experience: The players I use do not respect this tag.
My solution: I set a physical delay with eac3to and remux the source files with MP4Box without delay.

In order to find out the delay to be corrected you may want to playback the file with MPC and use use "+/-" buttons on NUM pad.

You could also redo BD-RB's last step (muxing ro MP4) and examine the used commandline with Process Explorer. Good chance you will see the delay tag there.

ggtop

Last edited by ggtop; 3rd August 2018 at 10:51.
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