Only downgrade fps with encode

[Cyberpunk]

Hi, I only want to downgrade the fps of my video file, I don't want to re-encode it or re-size, only downgrade the fps. What are the solution?!?!

Thx

[scharfis_brain]

There is none.

[Cyberpunk]

Ok so what are my options If I want to keep the same resolution, the same file size and the same cropping but downgrade the fps ?!?!

[Guest]

What is the format of your video file? If it's an AVI, you can just set a different display rate with AssumeFPS().

[Cyberpunk]

Yes it's a .AVI.

What do you mean with AssumeFPS()? I want to convert the file to my desired FPS, I don't know if this command would do the job...

[Guest]

http://www.free-codecs.com/download/AVI_Frame_Rate_Changer.htm

[Cyberpunk]

http://www.free-codecs.com/download/AVI_Frame_Rate_Changer.htm

I just tried this program, It worked for the FPS but there's an error in the length of the video. It show 90mins when It's 45mins...

[Guest]

You said you don't want to re-encode. That means you can't add any new (duplicate) frames. So if you change the FPS, you must cause a change in the running length.

If you are asking how to change the frame rate, and keep the same running time, and not re-encode, then it's not possible, as scharfi said.

[Cyberpunk]

You said you don't want to re-encode. That means you can't add any new (duplicate) frames. So if you change the FPS, you must cause a change in the running length.

If you are asking how to change the frame rate, and keep the same running time, and not re-encode, then it's not possible, as scharfi said.

Ok but let's say I want to re-encode with the same settings, how can I change FPS then?

[Guest]

ChangeFPS() in Avisynth is one option.

[Cyberpunk]

I tried re-encoding it with GKnot and everytime the size of the file is larger than the original. I setted the file size and it never get that size...

What is bad !??!

[Guest]

Post a new thread here, as this is now off topic for this thread.

http://forum.doom9.org/forumdisplay.php?f=28

[CWR03]

Use VirtualDubMod, under Video > Frame rate, Frame rate conversion, you can tell it to basically "drop" frames. This will result in a smaller file size when you use direct stream copy, but there will be no loss of quality because the video is not re-encoded.