Hi there, I was trying to use bufferProgress of Audio component in QtMultimedia for my custom playback controls, and I realised that apart from indicating that buffering is completed there is no way to guess how much data was actually buffered or portion of the file. My original idea was to fill the progressbar like youtube or other players with the real buffered data/length.

In the current state is works almost like a flag "buffered completed", as bufferProgress turns 0 to 1 in an instant, less than half a second.