private void btnConvert_Click(object sender, EventArgs e)
{
if (newFormat == IntPtr.Zero)
{
MessageBox.Show("Please, specify destination format for converting");
return;
}
string fileName = tbFile2.Text + ".wav";
int size = ar.Milliseconds2Bytes(1000);
int len = ar.GetLengthInBytes();
AcmConverter ac = new AcmConverter(oldFormat, newFormat, false);
FileStream fs = new FileStream(fileName, FileMode.Create);
WaveWriter ww = new WaveWriter(fs, AudioCompressionManager.FormatBytes(newFormat));
pbConvert.Maximum = len;
int y = 0;
while (y < len)
{
pbConvert.Value = y;
byte[] data = ar.ReadDataInBytes(y, size);
if (data.Length == 0)
{
break;
}
y += data.Length;
byte[] newData = ac.Convert(data);
ww.WriteData(newData);
}
ww.Close();
ar.Close();
gbConvert.Enabled = false;
btnMakeMp3.Enabled = tbFile2.Text.ToLower().EndsWith(".wav");
OpenContainingFolder(fileName);
}
public int Read(byte[] buffer, int offset, int count)
{
if (IsEOF)
{
return(0);
}
try
{
int read = 0;
lock (_lockObject)
{
read += CheckForOverflows(buffer, ref offset, count);
if (read == count)
{
return(read); //if we've already read enough -> exit
}
while (read < count)
{
try
{
_frame = ReadNextMP3Frame();
if (_frame == null)
{
IsEOF = true;
break;
}
int converted = _converter.Convert(_frameBuffer, _frame.FrameLength, _pcmDstBuffer, 0);
int BTCC = Math.Min(count - read, converted);
Array.Copy(_pcmDstBuffer, 0, buffer, offset, BTCC);
offset += BTCC;
read += BTCC;
/*
* If there are any overflows -> store them in a
* buffer to use it next time.
*/
_overflows = ((converted > BTCC) ? (converted - BTCC) : 0);
_bufferoffset = ((converted > BTCC) ? (BTCC) : 0);
}
catch (Exception ex)
{
Debugger.Break();
Debug.WriteLine("Mp3Stream::Read: " + ex.ToString());
}
}
_position += read;
return(read);
}
}
catch (EndOfStreamException)
{
return(-1);
}
}
private void btnConvert_Click(object sender, EventArgs e)
{
if (newFormat == IntPtr.Zero)
{
MessageBox.Show("Please, specify destination format for converting");
return;
}
string fileName = tbFile2.Text + ".wav";
int size = ar.Milliseconds2Bytes(1000);
int len = ar.GetLengthInBytes();
AcmConverter ac = new AcmConverter(oldFormat, newFormat, false);
FileStream fs = new FileStream(fileName, FileMode.Create);
WaveWriter ww = new WaveWriter(fs, AudioCompressionManager.FormatBytes(newFormat));
pbConvert.Maximum = len;
int y = 0;
while (y < len)
{
pbConvert.Value = y;
byte[] data = ar.ReadDataInBytes(y, size);
if (data.Length == 0)
{
break;
}
y += data.Length;
byte[] newData = ac.Convert(data);
ww.WriteData(newData);
}
ww.Close();
ar.Close();
gbConvert.Enabled = false;
btnMakeMp3.Enabled = tbFile2.Text.ToLower().EndsWith(".wav");
OpenContainingFolder(fileName);
}
private void BufferProc(object o)
{
if (_stream == null || _stream.CanRead == false)
{
throw new Exception("Mp3WebStream not initialized");
}
MP3Frame frame = GetNextFrame(_stream);
int channels = frame.ChannelMode == MP3ChannelMode.Stereo ? 2 : 1;
AcmConverter converter = new AcmConverter(new MP3Format(frame.SampleRate, frame.ChannelCount, frame.FrameLength, frame.BitRate));
_waveFormat = converter.DestinationFormat;
byte[] buffer = new byte[16384 * 4];
_buffer = new FixedSizeBuffer <byte>(converter.DestinationFormat.BytesPerSecond * 10);
ManualResetEvent resetEvent = o as ManualResetEvent;
resetEvent.Set();
do
{
if (_buffer.Buffered >= _buffer.Length * 0.85 && !_disposing)
{
Thread.Sleep(250);
continue;
}
try
{
frame = GetNextFrame(_stream);
//_frameBuffer is set in GetNextFrame
int count = converter.Convert(_frameBuffer, frame.FrameLength, buffer, 0);
if (count > 0)
{
int written = _buffer.Write(buffer, 0, count);
}
}
catch (MmException)
{
_disposing = true;
ThreadPool.QueueUserWorkItem((c) =>
{
while (_bufferThread.ThreadState != System.Threading.ThreadState.Stopped)
{
;
}
CreateStream(false);
});
}
catch (WebException)
{
InitializeConnection();
}
catch (IOException)
{
InitializeConnection();
}
} while (!_disposing);
if (converter != null)
{
converter.Dispose();
}
}