With HLS chunkless preparation, audio formats may have no value
for channel count. In this case, the DefaultAudioSink will either query
the platform for a supported channel count (API 29+) or assume a max
channel count based on the encoding spec in order to decide whether the
audio format can be played with audio passthrough.
Issue: google/ExoPlayer#10204
#minor-release
PiperOrigin-RevId: 453644548
(cherry picked from commit 86973382335156abaa76770c6897d28460fdde36)
31c7ccbc49