public static void PcmList(SoundPcmStreamType streamType)
{
string name, descr, descri, io;
string filter;
string[] n;
SoundDeviceNameHint nameHint = new SoundDeviceNameHint(-1, "pcm");
if (nameHint.Hints == null)
{
return;
}
n = nameHint.Hints;
filter = streamType == SoundPcmStreamType.Playback ? "Output" : "Input";
foreach (string hint in n)
{
name = SoundDeviceNameHint.GetHint(hint, DeviceNameHints.NAME);
descr = SoundDeviceNameHint.GetHint(hint, DeviceNameHints.DESC);
io = SoundDeviceNameHint.GetHint(hint, DeviceNameHints.IOID);
if (io != null && (string.Compare(io, filter) != 0))
{
goto __end;
}
Console.WriteLine("{0}", name);
descri = descr;
if (descri != null)
{
Console.WriteLine(" " + descri.Replace("\n", "\n "));
}
__end:
continue;
}
nameHint.Dispose();
}
public static void DeviceList()
{
SoundPcmStreamType stream = SoundPcmStreamType.Playback;
SoundCardCollection enumerator = new SoundCardCollection();
int card = -1;
int dev;
if (enumerator.Next(out card) < 0 || card < 0)
{
Console.WriteLine("no soundcards found...");
return;
}
Console.WriteLine("**** List of {0} Hardware Devices ****", stream.GetName());
int err;
SoundControl ctl = new SoundControl();
SoundControlCardInfo info = new SoundControlCardInfo();
SoundPcmInfo pcminfo = new SoundPcmInfo();
err = info.Allocate();
err = pcminfo.Allocate();
while (card >= 0)
{
string name = string.Format("hw:{0}", card);
err = ctl.Open(name, 0);
if (err < 0)
{
Console.WriteLine("Control open ({0}): {1}",
card, SoundExtensionMethods.GetErrorMessage((err)));
goto next_card;
}
err = info.Get(ctl);
if (err < 0)
{
Console.WriteLine("Control hardware info ({0}): {1}",
card, SoundExtensionMethods.GetErrorMessage((err)));
ctl.Close();
goto next_card;
}
dev = -1;
while (true)
{
uint count;
SoundControlPcmCollection pcms = new SoundControlPcmCollection();
if (pcms.Next(ctl, out dev) < 0)
{
Console.WriteLine("snd_ctl_pcm_next_device");
}
if (dev < 0)
{
break;
}
pcminfo.SetDevice((uint)dev);
pcminfo.SetSubdevice(0);
pcminfo.SetStream(stream);
err = pcminfo.Get(ctl);
if (err < 0)
{
if (err != -2) // ENOENT
{
Console.WriteLine("error control digital audio info ({0}): {1}",
card, SoundExtensionMethods.GetErrorMessage(err));
}
continue;
}
Console.WriteLine("card {0}: {1} [{2}], device {3}: {4} [{5}]",
card, info.GetId(), info.GetName(),
dev,
pcminfo.GetId(),
pcminfo.GetName());
count = pcminfo.GetSubdevicesCount();
Console.WriteLine(" Subdevices: {0}/{1}", pcminfo.GetSubdevicesAvail(), count);
for (uint idx = 0; idx < count; idx++)
{
pcminfo.SetSubdevice(idx);
err = pcminfo.Get(ctl);
if (err < 0)
{
Console.WriteLine("control digital audio playback info ({0}): {1}",
card, SoundExtensionMethods.GetErrorMessage(err));
}
else
{
Console.WriteLine(" Subdevice #{0}: {1}", idx, pcminfo.GetSubdeviceName());
}
}
}
ctl.Close();
next_card:
if (enumerator.Next(out card) < 0)
{
Console.WriteLine("error snd_card_next");
break;
}
}
info.Deallocate();
pcminfo.Deallocate();
info = null;
pcminfo = null;
}
