Function OH_AudioDeviceDescriptor_GetDeviceChannelCounts 

pub unsafe extern "C" fn OH_AudioDeviceDescriptor_GetDeviceChannelCounts(
    audioDeviceDescriptor: *mut OH_AudioDeviceDescriptor,
    channelCounts: *mut *mut u32,
    size: *mut u32,
) -> OH_AudioCommon_Result

Available on crate feature api-12 only.

Query the device channel count array of the target audio device descriptor.

Arguments

• audioDeviceDescriptor - reference returned by [OH_AudioRoutingManager_GetDevices] or [OH_AudioRouterManager_OnDeviceChangedCallback].

• channelCounts - array pointer variable that will be set the channel count array value. Do not release the channelCounts pointer separately instead call [OH_AudioRoutingManager_ReleaseDevices] to release the DeviceDescriptor array when it is no use anymore.

• size - pointer variable that will be set the channel count size value.

Returns

• [#AUDIOCOMMON_RESULT_SUCCESS] or [#AUDIOCOMMON_RESULT_ERROR_INVALID_PARAM].

Available since API-level: 12