/// <summary>
/// Determines whether if the specified output format is supported
/// </summary>
/// <param name="shareMode">The share mode.</param>
/// <param name="desiredFormat">The desired format.</param>
/// <returns>
/// <c>true</c> if [is format supported] [the specified share mode]; otherwise, <c>false</c>.
/// </returns>
public bool IsFormatSupported(EAudioClientShareMode shareMode,
WaveFormat desiredFormat)
{
WaveFormatExtensible closestMatchFormat;
return(IsFormatSupported(shareMode, desiredFormat, out closestMatchFormat));
}
/// <summary>
///
/// </summary>
/// <param name="shareMode"></param>
/// <param name="desiredFormat"></param>
/// <returns></returns>
public WaveFormatExtensible CheckSupportFormat(EAudioClientShareMode shareMode, WaveFormat desiredFormat)
{
WaveFormatExtensible closestMatchFormat;
int hresult = _realAudioClient.IsFormatSupported(shareMode, desiredFormat, out closestMatchFormat);
return(closestMatchFormat);
}
/// <summary>
/// Determines if the specified output format is supported in shared mode
/// </summary>
/// <param name="shareMode">Share Mode</param>
/// <param name="desiredFormat">Desired Format</param>
/// <param name="closestMatchFormat">Output The closest match format.</param>
/// <returns>
/// <c>true</c> if [is format supported] [the specified share mode]; otherwise, <c>false</c>.
/// </returns>
public bool IsFormatSupported(EAudioClientShareMode shareMode, WaveFormat desiredFormat, out WaveFormatExtensible closestMatchFormat)
{
int hresult = _realAudioClient.IsFormatSupported(shareMode, desiredFormat, out closestMatchFormat);
// S_OK is 0, S_FALSE = 1
if (hresult == 0)
{
// directly supported
return(true);
}
if (hresult == 1)
{
return(false);
}
//else if (hresult == (int)AudioClientErrors.UnsupportedFormat)
//{
// return false;
//}
else
{
Marshal.ThrowExceptionForHR(hresult);
}
// shouldn't get here
throw new NotSupportedException("Unknown hresult " + hresult.ToString());
}
/// <summary>
/// Creates a new WASAPI Output
/// </summary>
/// <param name="device">Device to use</param>
/// <param name="shareMode"></param>
/// <param name="useEventSync">true if sync is done with event. false use sleep.</param>
/// <param name="latency"></param>
public WasapiRender(MMDevice device, EAudioClientShareMode shareMode, bool useEventSync, int latency)
{
this.audioClient = device.AudioClient;
this.shareMode = shareMode;
this.isUsingEventSync = useEventSync;
this.latencyMilliseconds = latency;
this.syncContext = SynchronizationContext.Current;
}
public void Initialize(EAudioClientShareMode shareMode,
EAudioClientStreamFlags streamFlags,
long bufferDuration,
long periodicity,
WaveFormat format,
Guid audioSessionGuid)
{
var hresult = _realAudioClient.Initialize(shareMode, streamFlags, bufferDuration, periodicity, format, ref audioSessionGuid);
Marshal.ThrowExceptionForHR(hresult);
// may have changed the mix format so reset it
mixFormat = null;
}
/// <summary>
/// WASAPI Out using default audio endpoint
/// </summary>
/// <param name="shareMode">ShareMode - shared or exclusive</param>
/// <param name="useEventSync">true if sync is done with event. false use sleep.</param>
/// <param name="latency">Desired latency in milliseconds</param>
public WasapiRender(EAudioClientShareMode shareMode, bool useEventSync, int latency) :
this(GetDefaultAudioEndpoint(), shareMode, useEventSync, latency)
{
}
/// <summary>
/// WASAPI Out using default audio endpoint
/// </summary>
/// <param name="shareMode">ShareMode - shared or exclusive</param>
/// <param name="latency">Desired latency in milliseconds</param>
public WasapiRender(EAudioClientShareMode shareMode, int latency) :
this(GetDefaultAudioEndpoint(), shareMode, true, latency)
{
}
