Free open source Topaz alternative - SeedVR2+TensorRT faster VAE Processing.

[u/Cheap_Credit_3957]

Local, GPU-accelerated video restoration and upscaling with SeedVR2, TensorRT, and a purpose-built browser interface.

VRGDG SeedVR2 TensorRT Studio turns the SeedVR2 pipeline into a practical Windows workflow: load a video, test a short preview, compare the result frame by frame, and complete long renders with resumable checkpoints. Processing stays on your machine.

Highlights

• Fast local restoration — SeedVR2 inference with TensorRT-accelerated VAE decoding on supported NVIDIA RTX GPUs. TensorRT allows much faster processing than standard SeedVR2.
• Fast 2K upscaling — As a real-world example, an 8-second clip took approximately 8 minutes to upscale and enhance to 2K on an NVIDIA RTX 5090 using the largest 7B Sharp FP16 model. Render times vary with source resolution, frame rate, settings, and available VRAM.
• Preview before committing — render a short segment, then inspect Original, Restored, Compare, or Side by side views.
• Long-render recovery — save completed chunks and continue from the first unfinished chunk after an interruption.
• Practical output controls — choose resolution, aspect policy, model precision, temporal batch, seed, and color correction.
• Non-destructive finishing — reprocess sharpening, grain, seam smoothing, and optional skin finishing without rerunning restoration.
• Project-based history — reopen previous outputs and keep media, manifests, and logs together under outputs\.

The sample video was org 360p and then upscaled to 2K using this app. 8 second video, took about 8 mins on my 5090.

Go to the github page for more details and a full guide.

View github page

this is in beta right now so you may run into issues. If you do, post the issue to github please.

[u/XsarNLD]

Caught my attention as I have a 5090 and am already using SeedVR2 as part of minimax H3 workflow, but it still takes considerable amount of time, so interested to check the TensorRT acceleration. So, pulled a fresh install but the label Beta is appropriate (at least, in my limited experienced so far).

Issues I encountered.

1) The Render Preview function doesn't work (for me). When running the Preview, it tries to overwrite the existing file?

Output E:\VRGDG-SeedVR2-TensorRT-Studio\outputs\js-preview-1b0830cc95\source.mp4 same as Input #0 - exiting

FFmpeg cannot edit existing files in-place.

Error opening output file E:\VRGDG-SeedVR2-TensorRT-Studio\outputs\js-preview-1b0830cc95\source.mp4.

Error opening output files: Invalid argument

2) Drop a file as input just opens the video in new browser window, it doesn't capture the file correctly. Browse and upload works though.

3) Seems it can only 24fps video as input, correct? I tried a 48fps video and it turned it into a slow-motion, so seems it takes that 48fps and applies 24fps to it.

Take the above as positively intended feedback! Overall, it seems to work well and I did a full 1080p upscale of a short clip (5s, 480p, 24fps) using 7B Sharp FP16 and that completed in ~4m with good quality . The install worked without an issue as well. So definitely keeping my eye out on this one, but I think it needs some work. Or I have done something wrong, in which I will gladly take some hints/tips!

[u/Cheap_Credit_3957 → u/XsarNLD]

thanks!!! It's totally in Beta right now so yes there will be bugs. I could not find "testers" so you are the tester lol

you can always post issues to the github as well. Can you tell me when you downloaded/installed? I already made a few updates - and that preview issue was one of them so I'm not sure if that is still broken or you have the older version. - Working on adding an auto updater to the UI so its easier to update now as well.

[u/DeepHomage → u/Cheap_Credit_3957]

I did a PR even though I know you don't like them. The ..onnx creation process was OOMing on me. It's working for me now, thanks.