Yes, I normally use AVC or HEVC codec output and could do so at 60 fps, but that requires some dropped frames along the stream, does it not, so as not to change the overall motion speed in the video over a given time sequence? Thanks for the tip that WMV output can retain the original 100 fps frame rate. I'll give that a try since it still has good quality and keeping file size at a minimum is not a higher priority than keeping all frames intact.

This raises a bigger question and that is why VPX can't output with AVC or HECV codecs in an MP4 wrapper at the same frame rate as the original source video that it can edit????? I don't see any reason to prevent it even though it is not a "mainstream" frame rate. 😬

@tom_frank

Hi

. . . . shoot 1080p-100 fps video . . . .

Is this with a camera or mobile phone?

. . . . why VPX can't output with AVC or HECV codecs in an MP4 wrapper  . . . .

The maximum framerate for 'standard' h.264 (AVC) and h.265 (HEVC) video is 50/60 fps (PAL/NTSC), recording at higher fps, is normally for Slow Motion video.

. . . . at 60 fps, but that requires some dropped frames along the stream, does it not . . .

It does, you could export at 50 fps, dropping alternate frames, however, whichever you choose you may be caught between 'a rock and a hard place' depending on the 'destination' of the exported video, eg Youtube/Vimeo.

John EB
Forum Moderator

This video use is more common with "action cameras". They cater to both PAL and NTSC users with various frame rate options like 24, 25, 50 and 100, plus 30, 60,120, even 240 when the video resolution and codecs can do it without dropping frames.

While the higher frame rates are more commonly associated with slowing down the frame rate to get slow motion effects, a more important use of the higher frame rates for action cameras sometimes is to minimize motion jitter (tiny jump steps between frames) with anything that is moving in the frame while keeping sharp focus rather than using slower frame rates to intentionally blur the motion steps (like "normal movie-style" video. I'd think VPX editors could be coded to accommodate this less-used kind of editing with a user option to output edited video at the same frame rate as the source material.

@tom_frank

Hi

While it may be advantageous to export at a higher framerates than 60 fps, there is the 'rock and a hard place' I briefly mentioned which 'puts a spanner in the works' and is normally rarely talked about .

In order to avoid drop frames/pull down the exported video framerate should match the refresh rate of the monitor/TV/projector being used to view the video.

Depending on the 'destination' of the exported video, eg Youtube/Vimeo you have no control over the systems the video is played on and frame dropping or pull down will occur.

My PC monitors defaults to 60 Hz, and my laptop 144Hz refresh rates, (the equivalent of frame rate), playing the same video with some fast action on these monitors, may or may not show slight jumps, the difference in smoothness between the two is dependent on how fast the action in conjunction with the frame rate.

Which framerate you us whether 25/30/50/60fps, or if it were possible 100/120/240 is always going to be a compromise, unless you have total control over the viewing device.

John EB

@tom_frank

Hi.

The only video editor I know of that can be fudged into working with 120 fps (and possibly higher) frame rates within the editor and exporting them at the same frame rate is Adobe Premier Pro and then it is only possible to export using H265. There are a few YouTube videos that go into how to do that. There is no mention on how powerful a computer you would need to do this.

For more specific information look up Matt WhoisMatt Johnson on YouTube.

Ray.

 

Hi.

The only video editor I know of that can be fudged into working with 120 fps (and possibly higher) frame rates within the editor and exporting them at the same frame rate is Adobe Premier Pro and then it is only possible to export using H265.

 

@CubeAce Vegas will pretty much render 'any' frame rate, I say any because I haven't tried all but I just rendered an AVC 240fps clip, If AVC won't do a certain size often rendering with HEVC will.

@Ancien utilisateur

Hi Gid

. . . . I just rendered an AVC 240fps clip . . . .

What settings did you use - I tried at 240 fps then 120 fps and VP balked at both settings. HEVC 120 fps no problem, not tried 240 yet.

John EB

@johnebaker Hi, I only did one render at 240p because I already know it will render the lower sizes 100, 120 etc.,.

I didn't mess with any other settings, I just changed the frame rate as this topic of this post.

Hi Gid

Thank you for that, it is the same one I used earlier, I tested with a 240 fps video file, will test again later.

Cheers

John EB

@Ancien utilisateur

Hi Gid.

I thought as much but did not want to suggest anything I hadn't tested or had seen information on. I suspect there are other editors that can do it as well but my routing around looking for unusual frame rate export possibilities has been quite limited. Did you manage it using H264? If so, one up on Premier 😂. 👍

Ray.