: The exact byte offset within the file where that data starts.
: Some players, like mpv , may explicitly report a "discarding broken index" warning. mkv index
In the context of multimedia, an (technically known as Cues ) is a metadata structure within a Matroska (.mkv) file that allows media players to seek instantly to specific timestamps. Without a functional index, a player might have to scan the entire file linearly to find a specific scene, leading to slow "scrubbing" or an inability to fast-forward. What is the MKV Index? : The exact byte offset within the file
For standard video files, Cues typically index every (I-frame) to ensure that when you click a point on a progress bar, the player can jump directly to a "complete" image rather than a partial one. Common Issues: Broken or Missing Indexes Without a functional index, a player might have