DGIndex creates .ac3 file double in length (timewise) of video

[karpodiem]

I have a 720p60 (720p @ 60FPS) .mpg file; however I have quite a big problem - the header says the video is 29.97

Did some Googling, used DGIndex to demux the audio and video.

The resultant .m2v file is fine. The .ac3 audio is...twice as long, and I have no idea why. The video is 2hr9min and the .ac3 file is 4hr18min. And, the .ac3 file plays back at double speed (really strange)

Using MPC-HC, the original .mpg plays back fine. What the hell is happening here, and how do I fix it? I'm at wits end.

Unfortunately I can't create a sample clip of the original .mpg with VideRedo because VideoRedo is reading the header, which says 29.97!

[txporter]

Sounds like this is the same file that you are having issues with over on the VideoRedo forum. Do you have two Tivos? Can you play the video up to the point where the actual program is beginning (skipping the commercials) and then transfer from THAT point to the other Tivo (thereby clipping the 29.97fps commercial from the stream)? Then download the new clipped stream down for processing.

Also, I think you were wanting to try something other than VideoRedo to decode the video. Dan (on VRD) suggested using Tivodecode to do this instead of VRD. If you don't have a copy of the executable, you can get one from kmttg (or just use kmttg to download and decode using tivodecode for you).

If not, perhaps try clipping the video with DGIndex (using [ ] buttons). If that doesn't work, maybe try Avidemux to clip a small section out.

You might also be able to try to clip a small section off with ffmpeg:

ffmpeg -i video.mpg -t 60 -vcodec copy -acodec copy video-out.mpg

adjust time to number of seconds that you want trimmed