vspreview-rs

Minimal and functional VapourSynth script previewer
Built on top of egui and vapoursynth-rs

Dependencies

Requires a VapourSynth installation with support for API 3.6 minimum.
For the GUI, see eframe dependencies.

Building

The minimum Rust version to build vspreview-rs is 1.59.0.

RUSTFLAGS="-C target-cpu=native" cargo build --release
Targeting the CPU is highly recommended to get the most performance.

Running

cargo run --release -- script.vpy
vspreview-rs script.vpy

GUI

The togglable GUI includes information about the clip as well as interactive controls.
Also, frame props are easily accessible.

Main parts of the UI:

• A window with the current state, including access to frame props and settings.
• A bottom panel with a slider to change frame quickly, as well as the clip info.
• An error window for VapourSynth messages or errors while rendering.

See more from the UI documentation.

Config

Using egui, the state is persisted across runs.
Refer to directories-next docs.

Keybindings

Moving around the image/clip:

• Seek 1 frame: Right, Left
• Seek 1 second: Down, Up
  • Alternative seeking: H, J, K, L
• Change outputs: Num1 to Num0
  • Outputs must be from 0-9
• Zoom: Ctrl + Scroll wheel
  • Ctrl + Up/Down for 0.1 zoom increments
• Scroll horizontally: Home/End or Shift + Scroll wheel
• Scroll vertically: PageUp/PageDown, Scroll wheel

Misc:

• Close: Escape, Q
• Show GUI: I (toggle)
• Reload script: R
• Toggle the ICC profile color correction: C
• Take a screenshot: S (saves to script directory)
• Copy the current frame number to clipboard: Ctrl + Shift + C

Context menu (right click):

• Open a new script file