/// <summary>
/// Writes to file.
/// </summary>
public void Write(byte[] Data, int Offset, int Count)
{
lock (_syncLock)
{
if (_riff && _writer.BaseStream.Length + Count > uint.MaxValue)
{
throw new ArgumentException("WAV file too large", nameof(Count));
}
if (_encoder != null)
{
_encoder.EnsureBufferIsSufficient(ref _encodedBuffer, Count);
var encodedLength = _encoder.Encode(Data, Offset, Count, _encodedBuffer, 0);
if (encodedLength <= 0)
{
return;
}
_writer.Write(_encodedBuffer, 0, encodedLength);
Length += encodedLength;
}
else
{
_writer.Write(Data, Offset, Count);
Length += Count;
}
}
}
public Stream Encode(FileInfo sourceFile, int compressionLevel)
{
using (Stream rawAudio = fileReader.Read(sourceFile))
{
return(encoder.Encode(rawAudio, compressionLevel));
}
}
/// <summary>
/// Encodes a signal from the specified file.
/// </summary>
///
/// <param name="fileName">File name to save the signal to.</param>
/// <param name="signal">The audio signal that should be saved to disk.</param>
///
public static void EncodeToFile(string fileName, Signal signal)
{
string fileExtension = FormatHandlerAttribute.GetNormalizedExtension(fileName);
IAudioEncoder encoder = FormatEncoderAttribute.GetEncoder(fileExtension, encoderTypes, encoders.Value);
if (encoder != null)
{
// open stream
using (FileStream stream = new FileStream(fileName, FileMode.Create, FileAccess.Write))
{
// open decoder
encoder.Open(stream);
// write all audio frames
encoder.Encode(signal);
encoder.Close();
}
return;
}
throw new ArgumentException(String.Format("No suitable encoder has been found for the file format {0}. If ", fileExtension) +
"you are trying to encode .wav files, please add a reference to Accord.Audio.DirectSound, and make sure you " +
"are using at least one type from assembly in your code (to make sure the assembly is loaded).", "fileName");
}
void AudioProviderOnDataAvailable(object Sender, DataAvailableEventArgs DataAvailableEventArgs)
{
_audioEncoder.EnsureBufferIsSufficient(ref _encodedBuffer, DataAvailableEventArgs.Length);
var encodedLength = _audioEncoder.Encode(DataAvailableEventArgs.Buffer, 0, DataAvailableEventArgs.Length, _encodedBuffer, 0);
DataAvailable?.Invoke(this, new DataAvailableEventArgs(_encodedBuffer, encodedLength));
}