Quantcast TMPGEnc: Different Video Lengths After Encoding... Any Clue? - digitalFAQ.com Forums [Archives]
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04-23-2003, 07:16 PM
irshliquor irshliquor is offline
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After I encode from a source .avi in TMPGEnc, sometimes I come up with a different length in the video. Most of the time it's less length but it ends with the same scene...doesn't cut anything off the end. Its almost as if it gets sped up slightly from the original.

For example:
most recently I tried encoding what was supposed to be the first 1:07:41 of The Four Feathers, but my .m1v created by TMPGEnc ended up being only 1:07:36.

I encoded the audio which was also 1:07:41 and multiplexed them both together with BBMpeg, and the final result was also 1:07:41. However, after about 5-10 minutes the audio and video start to slip and by the end of the movie the audio ends about 5 seconds before the video (strange to me because if the audio is longer than the video wouldn't it end after the video?) any ideas to maybe help fix this or what the cause might be?

I verified that the lag does not exist in the source .avi and i also verified that the source .avi does not have any undecodable frames using VirtualDub. So I'm not thinking it's the source .avi, but then again I could be wrong...
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04-24-2003, 03:38 AM
PyRoMaNiA PyRoMaNiA is offline
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Are you encoding in the same framerate as the source?
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04-24-2003, 03:49 AM
irshliquor irshliquor is offline
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how do i check the framerate of the source? i'm encoding in 23.976 fps
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04-24-2003, 03:51 AM
PyRoMaNiA PyRoMaNiA is offline
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Open up your AVS in VirtualDub and click File, File Information. It should say it somewhere there.
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04-24-2003, 03:54 AM
irshliquor irshliquor is offline
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i did that, they are the same...i did notice there are 10 more video frames than audio frames...but this seems common, i tried 2 other files with the same result either the audio or video having more frames than the other...
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04-24-2003, 04:38 AM
Kane Kane is offline
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just try using ToK, perhaps you´ve made a setting in tmpgenc, that causes the error and you just don´t know it.

i always use moviestacker and ToK and ALL my encodes are, as they are supposed to be
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04-24-2003, 01:52 PM
irshliquor irshliquor is offline
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i just noticed that under "video stream settings" in bbMPEG, it's set to 29.97fps. but all I'm using bbMPEG for is multiplexing, would this be a problem maybe?
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04-24-2003, 02:54 PM
kwag kwag is offline
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Quote:
Originally Posted by irshliquor
i just noticed that under "video stream settings" in bbMPEG, it's set to 29.97fps. but all I'm using bbMPEG for is multiplexing, would this be a problem maybe?
That's for the encoder part of BBMpeg. Doesn't matter when you are muxing an already encoded .m1v or .m2v

-kwag
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04-24-2003, 04:25 PM
irshliquor irshliquor is offline
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muchas gracias kwag!
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