RIFE v2 models seem to drastically lower visual quality.

[mlbrnm]

Please see the last few posts on this thread:

https://www.svp-team.com/forum/viewtopic.php?id=6281&p=30

This was hypothesized by one person, then confirmed by 2 others on different setups using different media players.

Seems like the V2 models cause major jagged edges in certain situations.

https://i.imgur.com/gqoKFqP.png

https://cdn.discordapp.com/attachments/290709370600423424/1095130933562187847/image.png

But thanks for your great work on this in general. Love it.

[WolframRhodium]

If the issue disappears with `fp16` disabled, it could be a precision problem?

[mlbrnm]

If the issue disappears with fp16 disabled, it could be a precision problem?

Unfortunately I am not that knowledgeable regarding AI/CUDA/etc and do not know how to test that, but I'd be happy to try if you have instructions/info.

[WolframRhodium]

Find test.py in the svp installation and look into it.

[aloola18]

Here is my config.
clip = RIFE(clip, multi=2, model=46, _implementation = 2, backend=BackendV2.TRT( device_id=0, fp16 = False, num_streams=2, output_format=1, use_cuda_graph=True, use_cudnn=False, workspace=None, static_shape = 1))

fp16=False + output_format=0 : slower than RIFE v1, but doesn't affect video quality.
fp16=False + output_format=1 : Same as above.
fp16=True + output_format=1: Faster than RIFE v1, but video quality looks really bad, especially on 4k videos.

I use the video to test
https://drive.google.com/file/d/1dfR5TTnsQWX9PVIl-PVujFM_bGfEXUvJ/edit

no rife or RifeV1:
https://cdn.discordapp.com/attachments/290709370600423424/1095138870187798578/LG_4K_HDR_Demo_-_New_York.ts_4_11_2023_7_09_06_AM.png

RIFEv2 + fp16 true
https://cdn.discordapp.com/attachments/290709370600423424/1095138871580315688/LG_4K_HDR_Demo_-_New_York.ts_4_11_2023_7_09_37_AM.png

[hooke007]

#22 (comment)
I retested and the confirmed that v2 could not run with fp16. You doesn't use the flag force_fp16, so it might skip many things.

[V85Sf]

I also enabled fp16 in the same way, and when I frame interpolated a 2560x1440 video, a major jagged edge occurred.
However, when I frame interpolate a 1920x1080 video with the same settings, no jaggedness occurs.
Also, if fp16 is disabled, no jaggedness occurs.