private WaveFormat SetupWaveFormat(WaveFormat waveFormat, AudioClient audioClient)
{
WaveFormatExtensible closestMatch;
WaveFormat finalFormat = waveFormat;
if (!audioClient.IsFormatSupported(_shareMode, waveFormat, out closestMatch))
{
if (closestMatch == null)
{
WaveFormat mixformat = audioClient.GetMixFormat();
if (mixformat == null || !audioClient.IsFormatSupported(_shareMode, mixformat))
{
WaveFormatExtensible[] possibleFormats = new WaveFormatExtensible[]
{
new WaveFormatExtensible(waveFormat.SampleRate, 32, waveFormat.Channels, DMO.MediaTypes.MEDIATYPE_IeeeFloat),
new WaveFormatExtensible(waveFormat.SampleRate, 24, waveFormat.Channels, DMO.MediaTypes.MEDIATYPE_Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 16, waveFormat.Channels, DMO.MediaTypes.MEDIATYPE_Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 8, waveFormat.Channels, DMO.MediaTypes.MEDIATYPE_Pcm)
};
if (!CheckForSupportedFormat(audioClient, possibleFormats, out mixformat))
{
//no format found...
possibleFormats = new WaveFormatExtensible[]
{
new WaveFormatExtensible(waveFormat.SampleRate, 32, 2, DMO.MediaTypes.MEDIATYPE_IeeeFloat),
new WaveFormatExtensible(waveFormat.SampleRate, 24, 2, DMO.MediaTypes.MEDIATYPE_Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 16, 2, DMO.MediaTypes.MEDIATYPE_Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 8, 2, DMO.MediaTypes.MEDIATYPE_Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 32, 1, DMO.MediaTypes.MEDIATYPE_IeeeFloat),
new WaveFormatExtensible(waveFormat.SampleRate, 24, 1, DMO.MediaTypes.MEDIATYPE_Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 16, 1, DMO.MediaTypes.MEDIATYPE_Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 8, 1, DMO.MediaTypes.MEDIATYPE_Pcm)
};
if (CheckForSupportedFormat(audioClient, possibleFormats, out mixformat))
{
throw new NotSupportedException("Could not find a supported format.");
}
}
}
finalFormat = mixformat;
//todo: implement channel matrix
DmoResampler resampler = new DmoResampler(_source, finalFormat);
resampler.Quality = 60;
_source = resampler;
_createdResampler = true;
}
else
{
finalFormat = closestMatch;
}
}
return(finalFormat);
}
private WaveFormat SetupWaveFormat(WaveFormat waveFormat, AudioClient audioClient)
{
WaveFormat closestMatch;
WaveFormat finalFormat = waveFormat;
if (!audioClient.IsFormatSupported(_shareMode, waveFormat, out closestMatch))
{
if (closestMatch == null)
{
WaveFormat mixformat = audioClient.GetMixFormat();
if (mixformat == null || !audioClient.IsFormatSupported(_shareMode, mixformat))
{
WaveFormatExtensible[] possibleFormats =
{
new WaveFormatExtensible(waveFormat.SampleRate, 32, waveFormat.Channels, AudioSubTypes.IeeeFloat),
new WaveFormatExtensible(waveFormat.SampleRate, 24, waveFormat.Channels, AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 16, waveFormat.Channels, AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 8, waveFormat.Channels, AudioSubTypes.Pcm)
};
if (!CheckForSupportedFormat(audioClient, possibleFormats, out mixformat))
{
//no format found...
possibleFormats = new[]
{
new WaveFormatExtensible(waveFormat.SampleRate, 32, 2, AudioSubTypes.IeeeFloat),
new WaveFormatExtensible(waveFormat.SampleRate, 24, 2, AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 16, 2, AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 8, 2, AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 32, 1, AudioSubTypes.IeeeFloat),
new WaveFormatExtensible(waveFormat.SampleRate, 24, 1, AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 16, 1, AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 8, 1, AudioSubTypes.Pcm)
};
if (CheckForSupportedFormat(audioClient, possibleFormats, out mixformat))
{
throw new NotSupportedException("Could not find a supported format.");
}
}
}
finalFormat = mixformat;
}
else
{
finalFormat = closestMatch;
}
}
return(finalFormat);
}
private WaveFormat SetupWaveFormat(IWaveSource source, AudioClient audioClient)
{
WaveFormat waveFormat = source.WaveFormat;
WaveFormat closestMatch;
WaveFormat finalFormat = waveFormat;
if (!audioClient.IsFormatSupported(_shareMode, waveFormat, out closestMatch))
{
if (closestMatch == null)
{
WaveFormat mixformat = audioClient.GetMixFormat();
if (mixformat == null || !audioClient.IsFormatSupported(_shareMode, mixformat))
{
WaveFormatExtensible[] possibleFormats =
{
new WaveFormatExtensible(waveFormat.SampleRate, 32, waveFormat.Channels,
AudioSubTypes.IeeeFloat),
new WaveFormatExtensible(waveFormat.SampleRate, 24, waveFormat.Channels,
AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 16, waveFormat.Channels,
AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 8, waveFormat.Channels,
AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 32, 2,
AudioSubTypes.IeeeFloat),
new WaveFormatExtensible(waveFormat.SampleRate, 24, 2,
AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 16, 2,
AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 8, 2,
AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 32, 1,
AudioSubTypes.IeeeFloat),
new WaveFormatExtensible(waveFormat.SampleRate, 24, 1,
AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 16, 1,
AudioSubTypes.Pcm),
new WaveFormatExtensible(waveFormat.SampleRate, 8, 1,
AudioSubTypes.Pcm)
};
if (!CheckForSupportedFormat(audioClient, possibleFormats, out mixformat))
{
throw new NotSupportedException("Could not find a supported format.");
}
}
finalFormat = mixformat;
}
else
{
finalFormat = closestMatch;
}
//todo: test channel matrix conversion
ChannelMatrix channelMatrix = null;
if (UseChannelMixingMatrices)
{
try
{
channelMatrix = ChannelMatrix.GetMatrix(_source.WaveFormat, finalFormat);
}
catch (Exception)
{
Debug.WriteLine("No channelmatrix was found.");
}
}
DmoResampler resampler = channelMatrix != null
? new DmoChannelResampler(_source, channelMatrix, finalFormat)
: new DmoResampler(_source, finalFormat);
resampler.Quality = 60;
_source = resampler;
_createdResampler = true;
return(finalFormat);
}
return(finalFormat);
}
private WaveFormat SetupWaveFormat(IWaveSource source, AudioClient audioClient)
{
WaveFormat waveFormat = source.WaveFormat;
WaveFormat closestMatch;
WaveFormat finalFormat = waveFormat;
//check whether initial format is supported
if (!audioClient.IsFormatSupported(_shareMode, waveFormat, out closestMatch))
{
//initial format is not supported -> maybe there was some kind of close match ...
if (closestMatch == null)
{
//no match ... check whether the format of the windows audio mixer is supported
//yes ... this gets executed for shared and exclusive mode streams
WaveFormat mixformat = audioClient.GetMixFormat();
if (mixformat == null || !audioClient.IsFormatSupported(_shareMode, mixformat))
{
//mixformat is not supported
//start generating possible formats
mixformat = null;
WaveFormatExtensible[] possibleFormats;
if (_shareMode == AudioClientShareMode.Exclusive)
{
//for exclusive mode streams use the DeviceFormat of the initialized MMDevice
//as base for further possible formats
var deviceFormat = Device.DeviceFormat;
//generate some possible formats based on the samplerate of the DeviceFormat
possibleFormats = GetPossibleFormats(deviceFormat.SampleRate, deviceFormat.Channels);
if (!CheckForSupportedFormat(audioClient, possibleFormats, out mixformat))
{
//none of the tested formats were supported
//try some different samplerates
List <WaveFormatExtensible> waveFormats = new List <WaveFormatExtensible>();
foreach (var sampleRate in new[] { 44100, 48000, 96000, 192000 })
{
waveFormats.AddRange(GetPossibleFormats(sampleRate, deviceFormat.Channels));
}
//assign the generated formats with samplerates 44.1kHz, 48kHz, 96kHz and 192kHz to
//the possibleFormats array which will be used below
possibleFormats = waveFormats.ToArray();
}
}
else
{
//for shared mode streams, generate some formats based on the initial waveFormat
possibleFormats = GetPossibleFormats(waveFormat.SampleRate, waveFormat.Channels);
}
if (mixformat == null)
{
if (!CheckForSupportedFormat(audioClient, possibleFormats, out mixformat))
{
throw new NotSupportedException("Could not find a supported format.");
}
}
}
finalFormat = mixformat;
}
else
{
finalFormat = closestMatch;
}
//todo: test channel matrix conversion
ChannelMatrix channelMatrix = null;
if (UseChannelMixingMatrices)
{
try
{
channelMatrix = ChannelMatrix.GetMatrix(_source.WaveFormat, finalFormat);
}
catch (Exception)
{
Debug.WriteLine("No channelmatrix was found.");
}
}
DmoResampler resampler = channelMatrix != null
? new DmoChannelResampler(_source, channelMatrix, finalFormat)
: new DmoResampler(_source, finalFormat);
resampler.Quality = 60;
_source = resampler;
_createdResampler = true;
return(finalFormat);
}
return(finalFormat);
}
