Python library for finding keyframes in MPEG TS files. Intended as a faster alternative to using FFProbe. Useful for creating I-frame playlists for HLS.

I have a very limited understanding of the MPEG TS format. This library has only been tested with a small selection of MPEG TS files and will most likely break if the files differ enough.

If you find something that looks wrong it probably is.

Get keyframes:

>>> from findkeyframes import get_keyframes
>>> keyframes = get_keyframes("video.ts")

This gives you an array of Frame objects containg information about the keyframes:

>>> keyframe = keyframes[0]
>>> keyframe.pos
564
>>> keyframe.size
1504
>>> keyframe.duration
8.673599999999977

Where pos is the position of the TS packet containing the start of the keyframe in bytes, size is the size of the keyframe in bytes, and duration is the time duration from the start of the keyframe up until the next keyframe.