frame rate change half-way into the video?

[Phantasmagoriat]

For my next vid, the first half is slow, so I wouldn't mind a lower fr, but the second half would look way sweeeeter if set really high @ 60fps.

From what I [think] I know, XviD displays footage at a variable bit rate, but is it possible to change the frame rate half-way into the video; Perhaps in the same sort of way zones can be modified by quality...?

I can make both a 24fps and 60fps XviD output from MAGIX...
...could I cut them in half and connect the dots... vdub?...

Is it possible in another format...?

If anyone could shed some light on this, it would be greatly appreciated

[Wheee_It's_Me!]

For my next vid, the first half is slow, so I wouldn't mind a lower fr, but the second half would look way sweeeeter if set really high @ 60fps.

From what I [think] I know, XviD displays footage at a variable bit rate, but is it possible to change the frame rate half-way into the video; Perhaps in the same sort of way zones can be modified by quality...?

I can make both a 24fps and 60fps XviD output from MAGIX...
...could I cut them in half and connect the dots... vdub?...

Is it possible in another format...?

If anyone could shed some light on this, it would be greatly appreciated

Um...just speed up the footage you want to go fast in Premiere by 200% (or however fast you want it). Just make sure on stuff that you slow down you select the clips and then right click and go to Video > Field Options and UNCHECK deinterlace when speed is below 100%...otherwise it's not gonna turn out well.

Trying to create a video clip with a variable frame rate would just be...retarded, at best...in fact I'm not even sure it's possible to do that (as far as the codec/container is concerned).

[Phantasmagoriat]

anyways

speed up the footage you want to go fast in Premiere by 200%

..I'm actually using Magix, but regardless of editing program, that still wouldn't work because it's not footage speed I care about, its the frame rate: Speeding footage by 500% [whatever high] would be fast footage , but if the output video is only 10fps [whatever low], its not going to flow as nicely.
<a href="http://www.animemusicvideos.org/members ... hp?v=47351">
this video</a> is run @ 59.94 (~60) fps, and you should be able to notice that even if you've never encountered high framerate footage, but look at it's filesize! [okay, it's also an mpg]

[just out of curiosity, CAN Premiere export an XviD at 59.94fps?]

[Phantasmagoriat]

would just be...retarded

I'm trying to avoid such a huge file size by only making the second half at such a high framerate. That's the point. It is not retarded.

I'm not even sure it's possible

Well that's what I want to know. Any other ideas?

[Scintilla]

Don't even try it in the AVI container. I think Matroska supports multiple frame rates, but I've never done it myself.

[Zarxrax]

Seems pointless to me. Just have it all at 60fps. Shouldn't make all that much of a difference, especially if its just a slow part.

Or if you really want to, after editing the whole thing at 60fps, you can use avisynth to remove half of the frames from the first part, then duplicate the remaining frames from that part. It's still 60fps internally, but only every other frame would be changing. The frames with no changes will take up almost no space in your encode.

[Wheee_It's_Me!]

would just be...retarded

I'm trying to avoid such a huge file size by only making the second half at such a high framerate. That's the point. It is not retarded.

Um...you must not comprehend how encoding works. It'll be pretty much the SAME SIZE either way because of intraframe compression...which is why you might as well just speed up the footage in the editing program...plus that way you can actually determine HOW FAST you need it to go to match the music/melody/beats/etc...unless you just don't care about synching.

I'm not even sure it's possible

Well that's what I want to know. Any other ideas?

You could probably do it with Matroska...but then yer gonna run into distribution issues. See the idea when you make something like an AMV is that you want to try and reach the WIDEST audience possible and just because you or I might have the right codecs installed to play an MKV file there are still TONS of people out there who:
A. Don't have the codecs.
and
B. Don't even know what codecs are.
and
C. Will just assume it's something they can't play and will delete it and move on.

[Phantasmagoriat]

Thanks for the suggestions everyone.

And you're all probably right that I should abandon the idea of having it split [yes, I'm going to make it 60fps all the way through because it will be ~the same file size like both Zarxrax, and Wheee_It's_Me! suggested ]

But now I'm curious as to how to do it-- say I had 2 varying sources I wanted to combine, that I didn't want to re-encode. [*cough* my 30fps beginning and 60fps ending]
Scintilla and Wheee_It's_Me! suggested Matroska.

The only program I've tried thus far with Matroska export is vdub,
but not surprisingly, when I write:
avisource("30fps.avi", "60fps.avi") it fails to open
and directshowsource("30fps.avi", "60fps.avi") says only 1 filename is supported

Three thoughts come to mind:
1.can I add a parameter... something along the lines of:

Code: Select all

avisource("30fps.avi", fps=60, "60fps.avi")

[I know the syntax is wrong ]
2.can I get a directshowsource that supports 2 filenames?
3.another program

How would it be done? [disregarding compatibility issues]

[WC Annihilus]

I suppose you could use SegmentedAVISource. Something like:

Code: Select all

SegmentedAVISource("30fps.avi", "60fps.avi")[code]

Might be a better way to do this though (or I'm not interpreting something right)

[WC Annihilus]

Next time I should preview a post before using syntax I've never used before

Code: Select all

SegmentedAVISource("30fps.avi", "60fps.avi")