RunningHub workflow page: https://www.runninghub.ai/zh-cn/post/2098788728777388033?inviteCode=rh-v1111

Bilibili tutorial video: https://www.bilibili.com/video/BV1vFYz6HECU/

# SeedVR2 and source-FPS video post-processing

## Purpose and preparation

Resolve the matching custom-node/runtime versions and assets. Load authorized media and inspect active inputs, actual schedules, effective dimensions and every save destination before a small test.

This file processes loaded video; it is not an H3 generation model route. Loaded frames enter SeedVR2 with linked new_resolution 2160, batch 1 and a randomizing seed. No input-dimension multiplier or separate 3840×2160 normalization node exists. The 2160 control is not proof of a particular output raster.

CreateVideo receives loaded source audio and VideoInfo source_fps output 0, not loaded_fps output 5; its old 30fps widget is overridden. Loader force_rate0,skip0,every_nth1,cap0. If you alter loading/resampling, review playback timing instead of assuming the source-fps link remains appropriate.

SaveVideo 20 writes the pre-interpolation output and passes VIDEO to interpolation 17. SeedVR2 images also connect to its image input; input precedence requires matching implementation. Interpolator VIDEO output 1 reaches SaveVideo 22. Both saves are active. Keep-audio does not prove bit-perfect sound, VFR correctness or successful frame interpolation.

Interpolator requests 2x,motion auto,threshold0.24,keep_audio on; runtime_dir/wine_prefix are empty. Dependencies, actual source-FPS multiplication and hardware support are untested.

## Files and selected assets

- [Workflow JSON]()

- [Selected cover]()

- `seedvr2_ema_3b_fp8_e4m3fn.safetensors`

## Version, evidence and rights

This is a local descriptive draft, not a published upgrade. Files01–08 are byte-identical to originals; only the standalone ninth file's historical video-preview field is cleared in its new copy. Originals remain unchanged.

No model inference, visual/audio acceptance, wall-clock benchmark or license verification was performed. Covers are selected assets, not accepted render evidence. Weights and external input media are not bundled. Check workflow, nodes, models, LoRAs, source media and cover rights separately; no blanket commercial license is asserted.

[Source-provided tutorial](https://www.youtube.com/watch?v=R3W2ab1_TzY) · [Source-provided workflow entry](https://www.runninghub.cn/post/2098776201618878466/?inviteCode=rh-v1111)

Links are not live-verified. The workflow is supplied through AI-KSK.