OH_AudioStreamBuilder_SetRendererInfo的用处

/** 
 
 Define the audio stream usage. 
 Audio stream usage is used to describe what work scenario 
 the current stream is used for. 
 @since 10 
 / 
 typedef enum { 
 /* 
 Unknown usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_UNKNOWN = 0, 
 /* 
 Music usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_MUSIC = 1, 
 /* 
 Voice communication usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_VOICE_COMMUNICATION = 2, 
 /* 
 Voice assistant usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_VOICE_ASSISTANT = 3, 
 /* 
 Alarm usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_ALARM = 4, 
 /* 
 Voice message usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_VOICE_MESSAGE = 5, 
 /* 
 Ringtone usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_RINGTONE = 6, 
 /* 
 Notification usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_NOTIFICATION = 7, 
 /* 
 Accessibility usage, such as screen reader. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_ACCESSIBILITY = 8, 
 /* 
 Movie or video usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_MOVIE = 10, 
 /* 
 Game sound effect usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_GAME = 11, 
 /* 
 Audiobook usage. 
 @since 10 
 / 
 AUDIOSTREAM_USAGE_AUDIOBOOK = 12, 
 /* 
 Navigation usage. 
 @since 10 
 */ 
AUDIOSTREAM_USAGE_NAVIGATION = 13, 
} OH_AudioStream_Usage;