c# - 从 CSCore audiostream 获取进程名称或 ID

Question

我已经使用 CSCore 库从我的程序中过滤了所有音频流。它工作正常，但我不知道哪个流属于哪个进程。有没有办法获取每个流的 processId 或 processname？

我的代码:

public class Audio
{
    public static void start(ListBox device, ListBox process)
    {
        using (var sessionManager = GetDefaultAudioSessionManager2(DataFlow.Render))
        {

            using (var sessionEnumerator = sessionManager.GetSessionEnumerator())
            {

                foreach (var session in sessionEnumerator)
                {
                    using (var audioMeterInformation = session.QueryInterface<AudioMeterInformation>())
                    {
                        device.Items.Add(audioMeterInformation.GetPeakValue());

                        process.Items.Add("here I need the processname or ID");
                    }
                }
            }
        }


    }

    private static AudioSessionManager2 GetDefaultAudioSessionManager2(DataFlow dataFlow)
    {
        using (var enumerator = new MMDeviceEnumerator())
        {
            using (var device = enumerator.GetDefaultAudioEndpoint(dataFlow, Role.Multimedia))
            {
                var sessionManager = AudioSessionManager2.FromMMDevice(device);
                return sessionManager;
            }
        }
    }
}

非常感谢!

Answer 1

您必须查询 AudioSessionControl2 对象的实例:

public class Audio
{
    public static void start(ListBox device, ListBox process)
    {
        using (var sessionManager = GetDefaultAudioSessionManager2(DataFlow.Render))
        {

            using (var sessionEnumerator = sessionManager.GetSessionEnumerator())
            {
                foreach (var session in sessionEnumerator)
                {
                    using (var audioMeterInformation = session.QueryInterface<AudioMeterInformation>())
                    using(var session2 = session.QueryInterface<AudioSessionControl2>())
                    {
                        device.Items.Add(audioMeterInformation.GetPeakValue());
                        var processID = session2.ProcessID;
                        process.Items.Add("here I need the processname or ID");
                    }
                }
            }
        }


    }

    private static AudioSessionManager2 GetDefaultAudioSessionManager2(DataFlow dataFlow)
    {
        using (var enumerator = new MMDeviceEnumerator())
        {
            using (var device = enumerator.GetDefaultAudioEndpoint(dataFlow, Role.Multimedia))
            {
                var sessionManager = AudioSessionManager2.FromMMDevice(device);
                return sessionManager;
            }
        }
    }
}