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trim behavior


I tried to trim the first few seconds of a video by selecting Seconds and setting the start time to 6 seconds. The video length was reduced by 6 seconds as expected however it appears that the video was trimmed from the end rather than from the beginning. Not sure if this is a bug or a misunderstanding on my part. What is the correct method to trim a few seconds from the start of a video?

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RandomEngy wrote Jun 23, 2012 at 6:36 PM

No, if you set the start time to 6 seconds, it should skip the first 6 seconds. Can you post an encode log?

comox wrote Jun 24, 2012 at 6:30 AM

Attached. Job 4 of 4 is the one I trimmed 6 seconds from the start but VidCoder seems to have taken 6 seconds off the end.

It gets more strange. I restarted VidCoder, opened the same dvd and set the 6 second trim carefully again thinking that I had made a mistake on the first attempt. This time it added 6 seconds to the full length which is totally weird.

I am rebooting and will try a 3rd time later tonight.

RandomEngy wrote Jun 24, 2012 at 5:17 PM

Okay well it looks like HandBrake is receiving the trim points correctly. Can you see if it happens in HandBrake to try and narrow down if it's VidCoder's or HandBrake's fault?

comox wrote Jun 24, 2012 at 8:17 PM

I think I now have a better understanding of what is going on.

VLC reports the dvd length as 2:03:34. VidCoder confirms this length. The full length rip produced by VidCoder is 8 seconds longer at 2:03:42. Most of this extra length is add to the beginning. So instead of trimming 6 seconds (as determined by viewing the dvd) I really needed to trim 14 seconds to compensate for the extra time added during the rip process. In addition, when 14 seconds are trimmed from the start, VidCoder mysteriously trims about 2 seconds from the end. All very confusing. I think I will avoid trimming with VidCoder in the future.