VCSI Docker

This repository builds a small Docker image for vcsi, a tool that creates video contact sheets.

Build

Build the image from the repository root:

docker build -t vcsi-docker .

Run

Run vcsi against a video file by mounting the current directory into the container:

docker run --rm -v "$PWD:/work" vcsi-docker vcsi input.mp4 -o output.jpg

Run vcsi across every video in the current directory (without recursive mode):

docker run --rm -v "$PWD:/work" vcsi-docker vcsi . -o .

If you want an interactive shell entry point, you can also pass any vcsi arguments directly:

docker run --rm -v "$PWD:/work" vcsi-docker vcsi --help

If you want to open a shell in the container first, use -it and /bin/bash:

docker run --rm -it -v "$PWD:/work" vcsi-docker /bin/bash

Useful Flags

These are some of the most useful options from the upstream vcsi README:

• -o, --output - output file path
• -w, --width - width of the generated contact sheet
• -g, --grid - grid size, for example 4x4
• -t, --show-timestamp - show timestamps on each frame
• -s, --num-samples - number of samples to capture
• -a, --accurate - slower but more accurate frame capture
• -A, --accurate-delay-seconds - decode a short window before each capture when using accurate mode
• -r, --recursive - process directories recursively
• --fast - prioritize speed over output quality
• -S, --actual-size - use full-size thumbnails
• -O, --thumbnail-output - keep thumbnails in a directory instead of deleting them
• --interval - capture frames at a fixed interval
• --frame-type - capture only a given frame type such as I, B, P, or key
• --timestamp-format - customize timestamp text
• --metadata-position - place metadata at top, bottom, or hidden
• --background-color - set the background color
• --metadata-font-color - set metadata text color
• --timestamp-font-color - set timestamp text color
• --timestamp-background-color - set the timestamp background color
• --timestamp-border-mode - draw timestamp text with a border instead of a rectangle
• --timestamp-border-size - set timestamp border thickness
• --template - use a custom metadata template

For the full upstream flag list, run:

docker run --rm -v "$PWD:/work" vcsi-docker vcsi --help

License

This image installs the upstream vcsi project, which is licensed under MIT. If you redistribute this repository or a built image, keep the upstream license notice and attribution with the distribution.