tonihei 06bd3a65fe Don't inform of static metadata changes if they are all empty.
The current code creates placeholder metadata elements if there is no
static metadata. This causes onStaticMetadataChanged callbacks even
if there is no metadata.

Instead, we can keep the empty list as the static metadata is already
documented to be an empty list if the metadata is unavailable.

#exofixit

PiperOrigin-RevId: 344071639
2020-11-27 11:06:11 +00:00
..

ExoPlayer library

The ExoPlayer library is split into multiple modules. See ExoPlayer's top level README for more information about the available library modules and how to use them.