STREAM_SUBSCRIBE_STATE
The subscribing state.
Enumerator
- SUB_STATE_IDLE
 - 0: The initial publishing state after joining the channel.
 - SUB_STATE_NO_SUBSCRIBED
 - 
      1: Fails to subscribe to the remote stream. Possible reasons:
- The remote user:
- Calls muteLocalAudioStream(
true) or muteLocalVideoStream(true) to stop sending local media stream. - Calls disableAudio or disableVideo to disable the local audio or video module.
 - Calls enableLocalAudio(false) or enableLocalVideo(false) to disable local audio or video capture.
 - The role of the remote user is audience.
 
 - Calls muteLocalAudioStream(
 - The local user calls the following methods to stop receiving remote streams:
- Call muteRemoteAudioStream(true) or muteAllRemoteAudioStreams(true) to stop receiving the remote audio stream.
 - Call muteRemoteVideoStream(true) or muteAllRemoteVideoStreams(true) to stop receiving the remote video stream.
 
 
 - The remote user:
 - SUB_STATE_SUBSCRIBING
 - 2: Subscribing.
 - SUB_STATE_SUBSCRIBED
 - 3: The remote stream is received, and the subscription is successful.