public override Stream LoadTagData(Stream stream)
{
var MediaInfo = stream.ReadUInt8(); //#1
this.Codec = (SoundFormat)(MediaInfo >> 4); //ACC 10
this.Rate = (SoundRate)((MediaInfo & 0x0f) >> 2); //AAC: always 3
this.Size = (SoundSize)((MediaInfo & 0x02) >> 1); //AAC: always 1
this.Type = (SoundType)(MediaInfo & 0x01); //AAC: always 1
//=== Data ===
var pos = stream.Position;
var wtf = stream.ReadBytes(1); //#1
var buf = stream.ReadBytes((int)this.DataSize - 1 - 1); //#n
DataStream = new MemoryStream();
DataStream.Write(buf, 0, buf.Length);
return(DataStream);
}
protected override void Parse()
{
BinaryReader br = new BinaryReader(this._dataStream);
BitStream bits = new BitStream(this._dataStream);
ushort _reserved = (ushort)bits.GetBits(4);
this._playbacksoundrate = DefineSound.getSoundRate(bits.GetBits(2));
this._playbacksoundsize = (bits.GetBits(1) == 0) ? SoundSize.snd_8bit : SoundSize.snd_16bit;
this._playbacksoundtype = (bits.GetBits(1) == 0) ? SoundType.mono : SoundType.stereo;
this._streamsoundcompression = DefineSound.getFormat(bits.GetBits(4));
this._streamsoundrate = DefineSound.getSoundRate(bits.GetBits(2));
this._streamsoundsize = (bits.GetBits(1) == 0) ? SoundSize.snd_8bit : SoundSize.snd_16bit;
this._streamsoundtype = (bits.GetBits(1) == 0) ? SoundType.mono : SoundType.stereo;
this._streamsoundsamplecount = br.ReadUInt16();
if (_streamsoundcompression == SoundEncoding.MP3)
this._latencyseek = br.ReadInt16();
if (_reserved != 0)
{
Exception e = new SwfFormatException("Reserved bits are set");
Log.Warn(this, e);
}
String s1 = String.Format("0x{0:X08}: reading soundstreamhead. Avarage samples {1}", this.Tag.OffsetData, this.AvarageCount);
Log.Debug(this, s1);
String s2 = String.Format("0x{0:X08}:\tPlayback: {1} {2} {3}",
this.Tag.OffsetData,
this.PlaybackRate,
this.PlaybackSize,
this.PlaybackType);
Log.Debug(this, s2);
String s3 = String.Format("0x{0:X08}:\tStream: {1} {2} {3} {4}",
this.Tag.OffsetData,
this.StreamCompression,
this.StreamRate,
this.StreamSize,
this.StreamType);
Log.Debug(this, s3);
}
/// <summary>
///
/// </summary>
protected override void Parse()
{
BinaryReader br = new BinaryReader(this._dataStream);
BitStream bits = new BitStream(this._dataStream);
this._soundID = br.ReadUInt16();
this._soundFormat = getFormat(bits.GetBits(4));
this._soundRate = getSoundRate(bits.GetBits(2));
this._soundSize = (bits.GetBits(1) == 0) ? SoundSize.snd_8bit : SoundSize.snd_16bit;
this._soundType = (bits.GetBits(1) == 0) ? SoundType.mono : SoundType.stereo;
this._soundSampleCount = br.ReadUInt32();
this._requiredVersion = getRequiredVersion(this._soundFormat);
// TODO: check buffersize
// Casting from UInt32 to int !!!!
this._soundData = br.ReadBytes((int)Tag.Length - 7);
String s = String.Format("\t{0} {1}", Tag.Length, Length);
//Log.Debug(this, s);
}
//
/// <summary>
/// Determines the number indicates the given soundrate
/// </summary>
/// <param name="sr">The sound rate</param>
/// <returns>The sound rate ID</returns>
public static uint getSoundRateID(SoundRate sr)
{
if (sr == SoundRate.snd_5kHz)
return 0;
else if (sr == SoundRate.snd_11kHz)
return 1;
else if (sr == SoundRate.snd_22kHz)
return 2;
else if (sr == SoundRate.snd_44kHz)
return 3;
else
return 255; //Invalid Value
}
