Timecode issue with rendering in MPEG-2

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BadgerKing
Joined: Sat Feb 12, 2011 5:48 pm
Location: Minnesota
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Re: Timecode issue with rendering in MPEG-2

Post by BadgerKing » Wed Mar 14, 2012 7:06 pm

Ok, so I did a little experiment - when I have the bitrate encoding in both Premiere Pro and TMPGEnc set to CBR and not VBR, the issue doesn't really happen (it's off by about a second or so from the original uncompressed source video).

Mister Hatt
Joined: Tue Dec 25, 2007 8:26 am
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Re: Timecode issue with rendering in MPEG-2

Post by Mister Hatt » Wed Mar 14, 2012 11:39 pm

Not too sure as I haven't used TMPGEnc in years myself. The CBR and VBR bit allocation will possibly change frame coding types to better optimise bitrate, that might have something to do with it. Re sources, every source has a different amount of scene changes and places where the encoder decides to insert an I-frame, so it kinda does depend on your source if this will happen.

As for different PCs doing stuff differently, it's all about versions and demuxers so chances are they have different software. I still recommend remuxing it to either a different container or the same one in avconv. Odd that bitrate allocation changes impact the seeking though, but that points even more at a broken demuxer.

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