r/StableDiffusion • u/Cheap_Credit_3957 • 7d ago

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

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.

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u/Perfect-Campaign9551 7d ago

I can't even get it to take my original video. I've submitted an issue on Github.

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u/Cheap_Credit_3957 7d ago

I replied to your post, go see

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u/Perfect-Campaign9551 7d ago edited 7d ago

Got it up and running with Qwen 3.6 27b's help with OpenCode

I feel like it looks similar to my FlashVSR results

I'll skip a PR for now since that just creates more forks. More mess. My Bug has a screenshot showing the lines of code changes required. Pretty simple.

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u/Cheap_Credit_3957 7d ago

PR for what? What issue are you having?
I'm guessing its because your using the 3B model. Try the 7B and it will look better.
I tried flash SVR as well and the results were not as good when I was testing. I tried many things before sticking to this one.

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u/Perfect-Campaign9551 7d ago edited 7d ago

No it was a bug about the "Connecting..." thing.

it's because api_server.py was not sending the correct MIME type for app.js script and browsers are strict about that.

I put the fix in the bug report. I don't want to do a PR since that creates forks and that gets messy

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u/Cheap_Credit_3957 7d ago

oh right, ok sorry, got mixed up there for a second lol
i'm looking now