SmoothVideo Project — Different performance for horizontal and vertical 4k videos

Re: Different performance for horizontal and vertical 4k videos

null@example.com (redraiderj) — Mon, 12 Jan 2026 00:46:41 +0000

MAG79 wrote:

You can get mediainfo from your videofiles both horizontal and vertical one. And we will see the difference.

Please find attached, also I used ffmpeg -i input.mp4 -vf "transpose=1" -c:a copy output.mp4 to make the horizontal video vertical and played it, there were also a lot of stutters and skipped frames.

Re: Different performance for horizontal and vertical 4k videos

null@example.com (redraiderj) — Fri, 09 Jan 2026 08:28:14 +0000

dawkinscm wrote:

redraiderj wrote:
Please find attached
Different codec and bitrate, but both are within normal parameters. It might be the weird aspect ratio that SVP is struggling with?

I don't know how SVP processes frames but theoretically it shouldn't be significantly different in terms of performance. I think maybe dev team can check if they need to process vertical frames in a separate way?

Re: Different performance for horizontal and vertical 4k videos

null@example.com (dawkinscm) — Fri, 09 Jan 2026 08:20:51 +0000

redraiderj wrote:

Please find attached

Different codec and bitrate, but both are within normal parameters. It might be the weird aspect ratio that SVP is struggling with?

Re: Different performance for horizontal and vertical 4k videos

null@example.com (redraiderj) — Fri, 09 Jan 2026 05:33:37 +0000

Please find attached

Re: Different performance for horizontal and vertical 4k videos

null@example.com (MAG79) — Fri, 09 Jan 2026 03:44:04 +0000

You can get mediainfo from your videofiles both horizontal and vertical one. And we will see the difference.

Different performance for horizontal and vertical 4k videos

null@example.com (redraiderj) — Fri, 09 Jan 2026 02:21:36 +0000

I'm using 5070Ti with SVP, and I have two 4k monitors. I mainly use the horizontal one but occasionally use the other to view vertical videos. I have a RIFE profile which uses 4.4v2 model for 4K videos under 30FPS, and it works almost fine for horizontal 4K 30FPS videos, like 4 skipped frames out of a 3 minutes video, but when I try to play a vertical 4K 30FPS video it keeps dropping frames with noticeable lag. Is there any difference when SVP processes horizontal and vertical videos? The pixel amount should be the same I guess.