public PrimaryAudioStreamInfo(MemoryStream ms) : base(PlaylistModel.StreamType.PrimaryAudio)
{
readStreamAttribute(ms);
//StreamAttribute
byte[] attributeBuffer = ms.ReadFixedLengthByteArray(ms.ReadInt8());
MemoryStream ms2 = new MemoryStream(attributeBuffer);
AudioCodec = (AudioCodec)ms2.ReadInt8();
int value = ms2.ReadInt8();
AudioPresentationMode = (StreamModel.AudioPresentationMode)(value >> 4);
SamplingRate samplingRate = (SamplingRate)(value & 0x0f);
switch (samplingRate)
{
case SamplingRate._48: PrimarySamplingRate = 48000; break;
case SamplingRate._96: PrimarySamplingRate = 96000; break;
case SamplingRate._192: PrimarySamplingRate = 192000; break;
default: throw new NotImplementedException(samplingRate.ToString());
}
LanguageCode = ms2.ReadFixedLengthString(3);
}
/// <summary>
/// Writes our settings to an XML writer
/// </summary>
/// <param name="writer">an XML writer</param>
public void WriteXml(System.Xml.XmlWriter writer)
{
writer.WriteAttributeString("BaudRate", BaudRate.ToString());
writer.WriteAttributeString("ControllerType", ControllerType.ToString());
writer.WriteAttributeString("SamplingChannels", SamplingChannels.ToString());
writer.WriteAttributeString("SamplingCompression", SamplingCompression.ToString());
writer.WriteAttributeString("SamplingMode", SamplingMode.ToString());
writer.WriteAttributeString("SamplingRate", SamplingRate.ToString());
writer.WriteAttributeString("SamplingTime", SamplingTime.ToString());
writer.WriteAttributeString("SerialPortName", SerialPortName);
}
private void ParseProgram(byte[] buffer)
{
MemoryStream ms = new MemoryStream(buffer);
ms.Position++;
byte numPrograms = ms.ReadInt8();
Programs = new Program[numPrograms];
for (int i = 0; i < numPrograms; i++)
{
Programs[i] = new Program();
Programs[i].ProgramSequenceStart = ms.ReadInt32BE();
Programs[i].ProgramMapPid = ms.ReadUInt16BE();
Programs[i].NumStreams = ms.ReadInt8();
Programs[i].NumGroups = ms.ReadInt8();
Programs[i].ProgramStreams = new ProgramStream[Programs[i].NumStreams];
for (int j = 0; j < Programs[i].NumStreams; j++)
{
ushort PID = ms.ReadUInt16BE();
int len = ms.ReadInt8();
int pos = (int)ms.Position;
byte codecType = ms.ReadInt8();
switch (codecType)
{
case 0x01:
case 0x02:
case 0x1b:
case 0xea:
VideoProgramStream child = new VideoProgramStream();
child.VideoCodec = (VideoCodec)codecType;
int value = ms.ReadInt8();
child.VideoResolution = (VideoResolution)(value >> 4);
FrameRate frameRate = (FrameRate)(value & 0x0f);
switch (frameRate)
{
case PlaylistModel.StreamModel.FrameRate._23_076: child.FrameRate = 23.976; break;
case PlaylistModel.StreamModel.FrameRate._24: child.FrameRate = 24; break;
case PlaylistModel.StreamModel.FrameRate._25: child.FrameRate = 25; break;
case PlaylistModel.StreamModel.FrameRate._29_976: child.FrameRate = 29.976; break;
case PlaylistModel.StreamModel.FrameRate._50: child.FrameRate = 50; break;
case PlaylistModel.StreamModel.FrameRate._59_94: child.FrameRate = 59.94; break;
default: throw new NotImplementedException(frameRate.ToString());
}
Programs[i].ProgramStreams[j] = child;
break;
case 0x03:
case 0x04:
case 0x80:
case 0x81:
case 0x82:
case 0x83:
case 0x84:
case 0x85:
case 0x86:
case 0xa1:
case 0xa2:
AudioProgramStream child2 = new AudioProgramStream();
child2.AudioCodec = (AudioCodec)codecType;
int value2 = ms.ReadInt8();
child2.AudioPresentationMode = (AudioPresentationMode)(value2 >> 4);
SamplingRate samplingRate = (SamplingRate)(value2 & 0x0f);
switch (samplingRate)
{
case SamplingRate._48: child2.PrimarySamplingRate = 48000; break;
case SamplingRate._96: child2.PrimarySamplingRate = 96000; break;
case SamplingRate._192: child2.PrimarySamplingRate = 192000; break;
default: throw new NotImplementedException(samplingRate.ToString());
}
child2.LanguageCode = ms.ReadFixedLengthString(3);
Programs[i].ProgramStreams[j] = child2;
break;
case 0x90:
case 0x91:
case 0xa0:
GraphicsProgramStream child3 = new GraphicsProgramStream();
child3.LanguageCode = ms.ReadFixedLengthString(3);
Programs[i].ProgramStreams[j] = child3;
break;
case 0x92:
SubtitleProgramStream child4 = new SubtitleProgramStream();
child4.CharCode = ms.ReadInt8();
child4.LanguageCode = ms.ReadFixedLengthString(3);
Programs[i].ProgramStreams[j] = child4;
break;
default:
Debug.WriteLine(String.Format("Unknown codec type: {0}", codecType));
break;
}
ms.Position = pos + len;
Programs[i].ProgramStreams[j].PID = PID;
}
}
}
