Y4M (.y4m)
YUV4MPEG (.y4m) is a raw, uncompressed video stream format used to pass frame data between video-encoding tools and codec testing pipelines.
Frequently asked questions
What is a .y4m file?
YUV4MPEG (.y4m) is a raw, uncompressed video stream format used to pass frame data between video-encoding tools and codec testing pipelines.
What is Y4M good for?
Y4M works well for raw frame interchange between encoders/codec test suites.
What are the downsides of Y4M?
Uncompressed — extremely large files Not a playback or distribution format
Can I convert Y4M in FileLab?
Y4M isn't yet supported for in-browser conversion here — it typically needs specialized desktop software to open or produce reliably.