SDK / exoplayer

We have seen devices running on API21/23 fail transcoding because of setting
encoding profile/level.

Some devices (ale-123/nexus 7) on API21 returns ENOSYS (Function not
implemented) when being configured with a profile setting. (although API21
introduced the capability of setting encoding profile)

Some devices (nexus 5) on API23 fails configuration with a specific parameter
set, despite advertising support for it.

Not setting the baseline profile has no effect on encoding, because when not
set, the encoding will pick a suitable profile to use. Since baseline is
the lowest possible profile, the auto-picked value can't be worse than
baseline.

Ref: b/218696352
PiperOrigin-RevId: 427792124