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filoe / cscore

An advanced audio library, written in C#. Provides tons of features. From playing/recording audio to decoding/encoding audio streams/files to processing audio data in realtime (e.g. applying custom effects during playback, create visualizations,...). The possibilities are nearly unlimited.
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"Unknown HRESULT" when try to get PropertyStore items #433

Closed steam3d closed 3 years ago

steam3d commented 3 years ago

This my code

using (var enumerator = new MMDeviceEnumerator())
{
    var audioEndpoints = enumerator.EnumAudioEndpoints(dataFlow, DeviceState.All);

    foreach (var audioEnd in audioEndpoints)
    {
        foreach (var property in audioEnd.PropertyStore)
        {
            Console.WriteLine(String.Format("{0} | {1} : {2} | {3}", property.Key, property.Key.GetType(), property.Value, property.Value.GetType()));
        }
    }
}

I got the error

CSCore.Win32.Win32ComException: 'IPropertyStore::GetValue caused an error: 0xe000020b, "Unknown HRESULT".'

I found that audioEndpoints have {CSCore.CoreAudioAPI.MMDevice} when you try to get FrendlyName you get this error.

image

barrien2 commented 3 years ago

Does changing DeviceState.All to DeviceState.Active fix it? I think there's an issue with disabled devices

steam3d commented 3 years ago

You are right, better way just skip device that rise error when using DeviceState.All