Player state does not always change to playing

[biesbjerg]

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Player state sometimes does not change to playing, even though audio starts and elapsedSecond event emits. It happens randomly, but more often if your network connection is slow. I'm testing on a device using Network Link Conditioner in Settings -> Developer Options to simulate a slow connection.

If you look at this log, it shouldn't be possible for player.playerState to be paused while emitting secondElapse (and actually playing):

⌛ stateChange - state: paused
⌛ stateChange - state: loading
⌛ stateChange - state: paused
⌛ secondElapse - currentTime: 0.0 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ secondElapse - currentTime: 0.0 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ secondElapse - currentTime: 0.0 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ updateDuration: 0.3657142857142857
⌛ secondElapse - currentTime: 0.02672804 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ secondElapse - currentTime: 0.026939374 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ updateDuration: 2.36472281
⌛ updateDuration: 7.380233014
⌛ secondElapse - currentTime: 1.000674124 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ updateDuration: 11.403090157
⌛ updateDuration: 16.941049341
⌛ secondElapse - currentTime: 2.000570967 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ updateDuration: 20.467579953
⌛ secondElapse - currentTime: 3.001347996 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ updateDuration: 23.994110565
⌛ updateDuration: 27.520641177
⌛ secondElapse - currentTime: 4.001117254 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ updateDuration: 33.032477912
⌛ updateDuration: 36.559008524
⌛ secondElapse - currentTime: 5.001199992 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ updateDuration: 42.096967708
⌛ secondElapse - currentTime: 6.000966879 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ updateDuration: 46.616151381
⌛ updateDuration: 52.154110565
⌛ secondElapse - currentTime: 7.000541125 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ updateDuration: 55.680641177
⌛ secondElapse - currentTime: 7.856695665 / state: Optional(SwiftAudio.AVPlayerWrapperState.paused)
⌛ updateDuration: 59.20717179

Tested on a device with iOS 13.