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lyonrouge

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#128797 23-Aug-2013 15:49
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I've tried a couple of the OotB solutions for this from MS and Apple. I find the encoding quailty is poor and the audio commonly out of sync. Can anyone recommend a tool that can split and join h.264 / AAC video without reencoding?

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1080p
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  #883497 23-Aug-2013 16:21
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Behodar
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  #883500 23-Aug-2013 16:27
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And if MKV isn't suitable then Subler can take that resulting MKV file and losslessly remux to .m4v.

lyonrouge

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  #883785 24-Aug-2013 09:56
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Thanks, I'm not sure if it was the MKV or M4V conversion step, but like other mechanisms I tried, this also had a audio sync mismatch.



jonherries
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  #883791 24-Aug-2013 10:30
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Eyetv does a pretty good job on a mac.

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  #883792 24-Aug-2013 10:31
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lyonrouge: Thanks, I'm not sure if it was the MKV or M4V conversion step, but like other mechanisms I tried, this also had a audio sync mismatch.


If you're having audio sync issues with multiple different pieces of software then there is likely a problem/quirk with your file. mkvmerge is easily able to resync the audio at mux time.

lyonrouge

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  #883801 24-Aug-2013 11:12
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My suspicion is subler, due to how long it took to process the mkv file created by mkvmerge. I'm unable to access the resulting mkv file as non of my systems (Snow Leopard, Win 7 nor OpenSUSE 12.2) will play it.

Behodar
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  #883807 24-Aug-2013 11:38
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mkv or m4v? If your video is more than 4 GB then you need to turn on "64-bit chunk offset" when saving out of Subler (this isn't enabled by default).



lyonrouge

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  #883885 24-Aug-2013 14:55
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The final result was m4v. I'm installing an Ubuntu 12.04 desktop to hopefully overcome codec dependancies, that was I should be able to see if the mkv was OK.

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  #883892 24-Aug-2013 15:18
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lyonrouge: My suspicion is subler, due to how long it took to process the mkv file created by mkvmerge. I'm unable to access the resulting mkv file as non of my systems (Snow Leopard, Win 7 nor OpenSUSE 12.2) will play it.


Installing a Matroska splitter on any of those systems will enable Matroska file playback. The fastest method would be installing a copy of VLC which has all necessary filters installed internally.

lyonrouge

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  #883900 24-Aug-2013 15:31
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ah, of course, why didn't I think of that, doh!

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