Motion Video Extractor

The aim of this project is to extract short embedded videos (1 to 2 seconds) from photos taken with a Google Pixel phone with enabled feature (usually the filename will end with .MP.jpg). Traditional methods used a brute-force approach by scanning the file to detect the beginning of the MP4 section. While effective, this method is slow and may not work if the JPEG file contains more than one embedded file.

Google stores the metadata information required to extract the sidecar video file inside a JFIF APP1 section that contains XMP metadata. This project decodes the beginning of the file and parses the XMP section to extract relevant information (video length and padding) and then copies the section into a new file with the same name as the original JPEG file with an extra .mp4 extension. This method is fast and the read/write speed of the disk will be the main bottleneck.

Build

This is a Rust project. If you have not yet installed Rust on you computer you can do it using rustup project https://rustup.rs/.

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

You can then open a shell at the root of the project and compile it with cargo.

cargo build --release

The result binary file should be in the directory ./target/release/motion-photo-extractor

Usage

To extract the sidecar video from specific files, simply run the binary and provide the filenames as arguments.

../motion-photo-extractor file_001.jpg file_002.jpg file_003.jpg

Future improvements

Support more manufacturer

At the moment, the project only supports the Google Pixel Motion Photo feature. However, other manufacturers are also embedding sidecar files inside their JPEG files. If you have any sample files, I would be glad to work on finding a way to extract the short videos contained within them"

Add CI/CD

It would be beneficial to add continuous integration and binary build functionality, which would allow users to download the binary directly from GitHub.

yyoann / motion-video-extractor Goto Github PK