1. Download a low quality short moment of any Twitch VoD with UnTwitch. 2. Play the video with Haruna. 3. Try to go backwards frame-by-frame for a certain time. Result: It stops going backwards after 5-ish seconds of video.
Created attachment 177437 [details] Try going back frame-by-frame on this video.
Created attachment 177448 [details] I went to the middle of the video, then paused it, then I've held the key to go backwards one frame, and it went 2 seconds forward. It's almost as if it was multiple videos stitched together.
The same happens with .ts videos.
Apparently this is a limitation of the file format, but I wonder if the player can keep a few blocks still loaded in order to mitigate this behaviour just enough to make going back about 30 seconds frame-by-frame actually useful.