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View Full Version : AutoGk makes vids async


katzenjoghurt
29th September 2008, 09:27
Hi.

Got a strange issue here.

I'm converting 40min episodes from .mkv (h264) to .avi (xvid)

While they had 25fps everything went fine.
With 23.976fps I get problems.

My steps:

1. extract streams with MKVextract
2. put h264 file in avi container with avc2avi.exe, setting -f23.976 parameter (fps is 23.975 now.)
3. remux videos aufio in avi with Virtual Dub.

Videos still in sync!

4. as autoGK takes ages (~24h) to convert h264 to xvid I first convert the video in a lossless logarith 40GB file. (1h + 2h AutoGK then)
Videos still sync then
5. use autoGK to convert the avi(logarith) file to avi(xvid).

Videos are async now. First sync... but the longer the video plays the more async it gets. So video seems to be too short.
But xvid and audio stream a both 40min long.
fps is still 23.975.

Watching the video I found out that something odd happened:
The 40min episode ends at 39min44sec (so the video was playing too fast) and then the file contains the last 16seconds again... so avi length is still 40min ending sync with the audio stream.

Hum...

I'm using 2.48beta.

katzenjoghurt
29th September 2008, 19:53
Hm... it helped doing a step between:
... -> 4. logarith -> 5. xvid (best quali) -> 6. autoGK (xvid)

Video's in sync now.