/// <summary>
/// Helper function to simplify encoding to MP3
/// By default, will only be available on Windows 8 and above
/// </summary>
/// <param name="inputProvider">Input provider, must be PCM</param>
/// <param name="outputFile">Output file path, should end with .mp3</param>
/// <param name="desiredBitRate">Desired bitrate. Use GetEncodeBitrates to find the possibilities for your input type</param>
public static void EncodeToMp3(IWaveProvider inputProvider, string outputFile, int desiredBitRate = 192000)
{
var mediaType = SelectMediaType(AudioFormatGuids.Mp3, inputProvider.WaveFormat, desiredBitRate);
if (mediaType == null)
{
throw new InvalidOperationException("No suitable MP3 encoders available");
}
using var encoder = new SharpMediaFoundationEncoder(mediaType);
encoder.Encode(outputFile, inputProvider);
}
/// <summary>
/// Helper function to simplify encoding to AAC
/// By default, will only be available on Windows 7 and above
/// </summary>
/// <param name="inputProvider">Input provider, must be PCM</param>
/// <param name="outputFile">Output file path, should end with .mp4 (or .aac on Windows 8)</param>
/// <param name="desiredBitRate">Desired bitrate. Use GetEncodeBitrates to find the possibilities for your input type</param>
public static void EncodeToAac(IWaveProvider inputProvider, string outputFile, int desiredBitRate = 192000)
{
// Information on configuring an AAC media type can be found here:
// http://msdn.microsoft.com/en-gb/library/windows/desktop/dd742785%28v=vs.85%29.aspx
var mediaType = SelectMediaType(AudioFormatGuids.Aac, inputProvider.WaveFormat, desiredBitRate);
if (mediaType == null)
{
throw new InvalidOperationException("No suitable AAC encoders available");
}
using var encoder = new SharpMediaFoundationEncoder(mediaType);
// should AAC container have ADTS, or is that just for ADTS?
// http://www.hydrogenaudio.org/forums/index.php?showtopic=97442
encoder.Encode(outputFile, inputProvider);
}
