public void Reset()
{
if (fileStream != null)
{
fileStream.Close();
fileStream = new AudioFileStream(AudioFileType.MP3);
currentByteCount = 0;
fileStream.PacketDecoded += AudioPacketDecoded;
fileStream.PropertyFound += AudioPropertyFound;
}
}
/// <summary>
/// Loads the audio stream from the given byte array. If the AudioFileStream does not return an Ok status
/// then a ContentLoadException is thrown.
/// </summary>
/// <param name="audiodata">The full byte array of the audio stream.</param>
void LoadAudioStream(byte[] audiodata)
{
AudioFileStream afs = new AudioFileStream(AudioFileType.WAVE);
//long pac = afs.DataPacketCount;
afs.ParseBytes(audiodata, false); // AudioFileStreamStatus status
AudioStreamBasicDescription asbd = afs.StreamBasicDescription;
Rate = (float)asbd.SampleRate;
Size = (int)afs.DataByteCount;
if (asbd.ChannelsPerFrame == 1)
{
Format = asbd.BitsPerChannel == 8 ? ALFormat.Mono8 : ALFormat.Mono16;
}
else
{
Format = asbd.BitsPerChannel == 8 ? ALFormat.Stereo8 : ALFormat.Stereo16;
}
byte [] d = new byte[afs.DataByteCount];
Array.Copy(audiodata, afs.DataOffset, d, 0, afs.DataByteCount);
_data = d;
var _dblDuration = (Size / ((asbd.BitsPerChannel / 8) * ((asbd.ChannelsPerFrame == 0) ? 1 : asbd.ChannelsPerFrame))) / asbd.SampleRate;
_duration = TimeSpan.FromSeconds(_dblDuration);
afs.Close();
//if(status != AudioFileStreamStatus.Ok) {
// throw new Content.ContentLoadException("Could not load audio data. The status code was " + status);
//}
}
void LoadAudioStream(byte[] audiodata)
{
AudioFileStream afs = new AudioFileStream(AudioFileType.WAVE);
//long pac = afs.DataPacketCount;
afs.PacketDecoded += HandlePacketDecoded;
afs.ParseBytes(audiodata, false);
afs.Close();
}
/// <summary>
/// Loads the audio stream from the given byte array. If the AudioFileStream does not return an Ok status
/// then a ContentLoadException is thrown.
/// </summary>
/// <param name="audiodata">The full byte array of the audio stream.</param>
void LoadAudioStream (byte[] audiodata)
{
AudioFileStream afs = new AudioFileStream (AudioFileType.WAVE);
//long pac = afs.DataPacketCount;
AudioFileStreamStatus status = afs.ParseBytes (audiodata, false);
AudioStreamBasicDescription asbd = afs.StreamBasicDescription;
Rate = (float)asbd.SampleRate;
Size = (int)afs.DataByteCount;
if (asbd.ChannelsPerFrame == 1)
Format = asbd.BitsPerChannel == 8 ? ALFormat.Mono8 : ALFormat.Mono16;
else
Format = asbd.BitsPerChannel == 8 ? ALFormat.Stereo8 : ALFormat.Stereo16;
_data = audiodata;
var _dblDuration = (Size / ((asbd.BitsPerChannel / 8) * asbd.ChannelsPerFrame == 0 ? 1 : asbd.ChannelsPerFrame)) / asbd.SampleRate;
_duration = TimeSpan.FromSeconds(_dblDuration);
afs.Close ();
//if(status != AudioFileStreamStatus.Ok) {
// throw new Content.ContentLoadException("Could not load audio data. The status code was " + status);
//}
}
private void WriteWave()
{
this.prbBytesWritten.Maximum = (int)this.AFS.Length;
this.prbBytesWritten.Maximum += 0x2c;
if (this.AF.Looped)
{
this.prbBytesWritten.Maximum += 0x48; // For the "Loop Start" cue marker
}
{ // Write WAV header
var BW = new BinaryWriter(this.FS, Encoding.ASCII);
// File Header
BW.Write("RIFF".ToCharArray());
BW.Write(this.prbBytesWritten.Maximum);
// Wave Format Header
BW.Write("WAVEfmt ".ToCharArray());
BW.Write((int)0x10);
// Wave Format Data
BW.Write((short)1); // PCM
BW.Write((short)this.AF.Channels);
BW.Write((int)this.AF.SampleRate);
BW.Write((int)(2 * this.AF.Channels * this.AF.SampleRate)); // bytes per second
BW.Write((short)(2 * this.AF.Channels)); // bytes per sample
BW.Write((short)16); // bits
// Wave Data Header
BW.Write("data".ToCharArray());
BW.Write((int)this.AFS.Length);
}
this.prbBytesWritten.Value = 0x2c;
// Write PCM data
var data = new byte[this.ChunkSize];
while (true)
{
int read = AFS.Read(data, 0, this.ChunkSize);
this.prbBytesWritten.Value += read;
FS.Write(data, 0, read);
if (read != this.ChunkSize)
{
break;
}
}
AFS.Close();
// Write "Loop Start" cue marker
if (this.AF.Looped)
{
var BW = new BinaryWriter(this.FS, Encoding.ASCII);
BW.Write("cue ".ToCharArray());
BW.Write((int)0x1c);
BW.Write((int)1);
BW.Write((int)1);
BW.Write((int)(this.AF.LoopStart * this.AF.SampleRate));
BW.Write("data".ToCharArray());
BW.Write((int)0);
BW.Write((int)0);
BW.Write((int)(this.AF.LoopStart * this.AF.SampleRate));
BW.Write("LIST".ToCharArray());
BW.Write((int)0x10 + 12);
BW.Write("adtl".ToCharArray());
BW.Write("labl".ToCharArray());
BW.Write((int)0x04 + 12);
BW.Write((int)1);
BW.Write("Loop Start\0\0".ToCharArray());
this.prbBytesWritten.Value += 0x48;
}
FS.Close();
}
void LoadAudioStream (byte[] audiodata)
{
AudioFileStream afs = new AudioFileStream (AudioFileType.WAVE);
//long pac = afs.DataPacketCount;
afs.PacketDecoded += HandlePacketDecoded;
afs.ParseBytes (audiodata, false);
afs.Close ();
}