Timecode issue with rendering in MPEG-2

This forum is for questions and discussion of all the aspects of handling your footage. If you have questions about capturing/ripping footage, AviSynth, or compression/encoding/converting, look here.

Timecode issue with rendering in MPEG-2

Postby BadgerKing » Sun Mar 11, 2012 10:59 pm

I encoded my amv as an mpeg-2 with TMPGEnc and directly from Premiere Pro (just to check to see if it was an issue with only TMPGEnc). Here's the problem I'm seeing: If I play the video from the beginning in WMP, the timecode is fine - but if I skip ahead to a certain time, it'll be off by a certain amount of seconds. For example, there's a certain part that happens at 1:53 if started regularly from the beginning and watched the entire way up to that point, but if I start the vid and skip to that point, it'll be nearly 6 seconds off and the timecode will be at 1:59 when it gets to that certain part that is supposed to happen at 1:53. I'm not seeing this when I play it in VLC Player, either, and I didn't see it last year when I encoded my previous amv in mpeg-2.

Any thoughts? :?
User avatar
BadgerKing
 
Joined: 12 Feb 2011
Location: Minnesota

Re: Timecode issue with rendering in MPEG-2

Postby BadgerKing » Mon Mar 12, 2012 9:49 pm

I tried the vid on my work computer and it doesn't have the same problem....now I'm really confused. :cry:
User avatar
BadgerKing
 
Joined: 12 Feb 2011
Location: Minnesota

Re: Timecode issue with rendering in MPEG-2

Postby mirkosp » Tue Mar 13, 2012 2:03 am

Well, WMP is generally regarded as a bad player. Check with MPC after installing the CCCP and see what happens there. If you can't reproduce it there, you likely don't have to worry.
Image
User avatar
mirkosp
MODkip
 
Joined: 24 Apr 2006
Location: Gallarate (VA), Italy
Status: (」・ワ・)」(⊃・ワ・)⊃

Re: Timecode issue with rendering in MPEG-2

Postby BadgerKing » Tue Mar 13, 2012 10:14 am

I have CCCP installed and the issue will occur with MPC.
I only found out about this issue because the AMV coordinator for the anime con I submitted the AMV to emailed me a couple days ago and said that she was having trouble recognizing the full length of my entry. She was able to do another conversion of it and fix it, but it just got me wondering why it's occurring.
User avatar
BadgerKing
 
Joined: 12 Feb 2011
Location: Minnesota

Re: Timecode issue with rendering in MPEG-2

Postby mirkosp » Tue Mar 13, 2012 11:08 am

Try remuxing in another container and see if it likes it.
Image
User avatar
mirkosp
MODkip
 
Joined: 24 Apr 2006
Location: Gallarate (VA), Italy
Status: (」・ワ・)」(⊃・ワ・)⊃

Re: Timecode issue with rendering in MPEG-2

Postby BadgerKing » Tue Mar 13, 2012 11:21 am

Well, it doesn't happen with the uncompressed AVI or as an MPEG-4.
User avatar
BadgerKing
 
Joined: 12 Feb 2011
Location: Minnesota

Re: Timecode issue with rendering in MPEG-2

Postby mirkosp » Tue Mar 13, 2012 11:35 am

They are different encodes altogether, though. I was wondering if the issue was somewhere in the container's data rather than in the video stream itself, hence why trying to remux the same encode to mkv or ts or anything else that would like it would be a way to see if that's true.
Image
User avatar
mirkosp
MODkip
 
Joined: 24 Apr 2006
Location: Gallarate (VA), Italy
Status: (」・ワ・)」(⊃・ワ・)⊃

Re: Timecode issue with rendering in MPEG-2

Postby BadgerKing » Tue Mar 13, 2012 11:46 am

mirkosp wrote:They are different encodes altogether, though. I was wondering if the issue was somewhere in the container's data rather than in the video stream itself, hence why trying to remux the same encode to mkv or ts or anything else that would like it would be a way to see if that's true.




Ah, I see. What software would I use for that? I don't believe I've ever remuxed a video before, so I'm not sure if there's any special way of doing that?
User avatar
BadgerKing
 
Joined: 12 Feb 2011
Location: Minnesota

Re: Timecode issue with rendering in MPEG-2

Postby mirkosp » Tue Mar 13, 2012 12:04 pm

Mkvmergegui for mkv (it's part of the mkvtoolnix) or tsmuxer for ts.
Image
User avatar
mirkosp
MODkip
 
Joined: 24 Apr 2006
Location: Gallarate (VA), Italy
Status: (」・ワ・)」(⊃・ワ・)⊃

Re: Timecode issue with rendering in MPEG-2

Postby BadgerKing » Tue Mar 13, 2012 12:19 pm

Alrighty, I'll give that a try and see what happens. Thank you.
User avatar
BadgerKing
 
Joined: 12 Feb 2011
Location: Minnesota

Re: Timecode issue with rendering in MPEG-2

Postby BadgerKing » Tue Mar 13, 2012 6:35 pm

Ok, I used Mkvmergegui and opened it in MPC - there is no timecode problem.
User avatar
BadgerKing
 
Joined: 12 Feb 2011
Location: Minnesota

Re: Timecode issue with rendering in MPEG-2

Postby mirkosp » Tue Mar 13, 2012 7:53 pm

Then my assumption is that during the encode, the video and audio encoding went fine, but then something (don't know exactly what) happened with the muxing and thus some information was missing. Perhaps trying to run the encode once again would make the new file work fine?
Image
User avatar
mirkosp
MODkip
 
Joined: 24 Apr 2006
Location: Gallarate (VA), Italy
Status: (」・ワ・)」(⊃・ワ・)⊃

Re: Timecode issue with rendering in MPEG-2

Postby BadgerKing » Tue Mar 13, 2012 11:36 pm

I've done the encode multiple times with both Premiere Pro and TMPGEnc and it happens every time. I downloaded the Procoder 2 demo and gave that a shot, and it didn't give me any problems (btw, does it matter if it's a .m2p or .m2v file instead of just .mpeg in that case?).

I've also tried rendering a different video clip from Premiere Pro and there wasn't an issue either.


I'm stumped. I've exported from Premiere Pro with the same PAR, resolution, and field type - and I tried encoding in TMPGEnc with both lagarith and as an uncompressed avi. I guess it's just something with my clips or the project itself. :/
User avatar
BadgerKing
 
Joined: 12 Feb 2011
Location: Minnesota

Re: Timecode issue with rendering in MPEG-2

Postby mirkosp » Tue Mar 13, 2012 11:40 pm

I'll have to summon somebody better than me, as my knowledge when it comes to containers is rather limited.
I think Mister Hatt has been doing stuff regarding H.222 lately, so he might be of help here.
Image
User avatar
mirkosp
MODkip
 
Joined: 24 Apr 2006
Location: Gallarate (VA), Italy
Status: (」・ワ・)」(⊃・ワ・)⊃

Re: Timecode issue with rendering in MPEG-2

Postby BadgerKing » Tue Mar 13, 2012 11:53 pm

Alright - thank you for your help. :)
User avatar
BadgerKing
 
Joined: 12 Feb 2011
Location: Minnesota

Next

Return to Footage Help

Who is online

Users browsing this forum: No registered users and 3 guests