/// <summary>
/// 获取屏幕上所有音频和视频设备
/// </summary>
public string GetVideoAndAudioDev()
{
string result = "";
DevState state = DevState.None;
VideoAndAudioDev devs = new VideoAndAudioDev();
string devName = string.Empty;
MepgHelper.ExecVideoCommand(VideoAndAudioList,
(sender, e) =>
{
state = MepgHelper.GetDevId(e.Data, state, ref devs, ref devName);
},
(sender, e) =>
{
_events.Publish(new DevListMessage {
Data = devs
}, (t) => { Task.Factory.StartNew(t); });
});
return(result);
}
public static DevState GetDevId(string msg, DevState state, ref VideoAndAudioDev dev, ref string devName)
{
if (!string.IsNullOrWhiteSpace(msg))
{
if (msg.Contains(VideoDevConst))
{
state = DevState.VideoState;
}
else if (msg.Contains(AudioStateConst))
{
state = DevState.AudioState;
}
else if (msg.Contains(DevIdConst))
{
string devId = msg.Substring(msg.IndexOf(DevIdConst), msg.Length - msg.IndexOf(DevIdConst)).Replace(DevIdConst, "").Replace("\"", "").Trim();
switch (state)
{
case DevState.VideoState:
dev.Videos.Add(new VideoDev()
{
DevId = devId, DevName = EncoderHelper.ASCIToUtf8(devName)
});
break;
case DevState.AudioState:
dev.Audios.Add(new AudioDev()
{
DevId = devId, DevName = EncoderHelper.ASCIToUtf8(devName)
});
break;
}
}
devName = msg;
}
return(state);
}
