KVCD: Jerky Motion and AssumeFPS() ?
 

Hi everybody.

On my latest encode "the bourne identity" (PAL 25fps), I noticed that the motion is not "smooth" on my new standalone player. When there are camera pans, it's clearly visible. What could cause this?
I noticed that ToK added this line to my script:
AssumeFPS(25)
Could that be the reason? :roll:

That should not cause any stuttering. AssumeFPS only speeds up the video, it doesn't add or remove any frames like ConvertFPS or ChangeFPS do. The fault must be elsewhere :wink:

EDIT: Did you check that the source doesn't have the same problem?

I`m a newbie and this may be stupid but why to use AsumeFPS(25) when your source is already PAL (25fps) or your Source is NTSC????

Jellygoose said that ToK added the line to the script (for some odd reason).

What kind of player? What source?
 

I have had several similar issues with a player I bought for my girlfriend. One issue Kwag helped me realize is that I was encoding at 480x480. It played PERFECTLY on my Sony player. It was jerky on this new player. Also, I have had bad luck with using too low of a minimum bit rate.

Additionally I have had really bad luck with Divx files I re-encode as KVCD. Then I play the Divx back and realize that there was plenty of error in the source that was just enhanced in the KVCD output.

I use ReClock on PC playback which will smooth out video that is not smooth in the source. (Sometimes from missing video frames or strange framerates).

If this was a direct DVD rip yourself... and it was a PAL source... That is a strange problem. Some players don't like VBR. Those few players can choke on KVCD?

Just a couple of ideas. Hope one helps.

Thanks for giving Kwag the idea for the latest Optimal Script change. I am really liking the new results. (15% faster on episodes of The Simpsons... and a bit nicer looking too!). :D

Grantman