mirror of
https://github.com/androidx/media.git
synced 2025-05-16 20:19:57 +08:00

ProgressiveMediaPeriod loads all available tracks into SampleStreams (because it needs to read the data anyway and it allows easy activation of tracks without reloading). However, the SampleStreams for disabled tracks are not read and no one if waiting for them. The buffered position is used for user-visible state (e.g. in the UI) and to check how much data is already buffered to decide when to stop buffering (using LoadControl). Both values benefit from only using the actually enabled tracks to better reflect what is available for playback at the moment. Issue:Issue: google/ExoPlayer#10361 PiperOrigin-RevId: 458475038