/// <summary>
/// Create a new instance of a BIOP descriptor.
/// </summary>
/// <param name="byteData">The MPEG2 section containing the descriptor.</param>
/// <param name="index">Index of the descriptor tag in the MPEG2 section.</param>
/// <returns>A BIOP descriptor instance.</returns>
public static BIOPDescriptor Create(byte[] byteData, int index)
{
BIOPDescriptor descriptor = null;
switch (byteData[index])
{
case DVBCompressedModuleDescriptor.Tag:
descriptor = new DVBCompressedModuleDescriptor();
break;
case MHPLabelDescriptor.Tag:
descriptor = new MHPLabelDescriptor();
break;
case MHPCachingPriorityDescriptor.Tag:
descriptor = new MHPCachingPriorityDescriptor();
break;
case MHPContentTypeDescriptor.Tag:
descriptor = new MHPContentTypeDescriptor();
break;
default:
throw (new InvalidOperationException("BIOPDescriptor: Tag not recognized - " + byteData[index]));
}
descriptor.Process(byteData, index);
return(descriptor);
}
/// <summary>
/// Create a new instance of a BIOP descriptor.
/// </summary>
/// <param name="byteData">The MPEG2 section containing the descriptor.</param>
/// <param name="index">Index of the descriptor tag in the MPEG2 section.</param>
/// <returns>A BIOP descriptor instance.</returns>
public static BIOPDescriptor Create(byte[] byteData, int index)
{
BIOPDescriptor descriptor = null;
switch (byteData[index])
{
case DVBCompressedModuleDescriptor.Tag:
descriptor = new DVBCompressedModuleDescriptor();
break;
case MHPLabelDescriptor.Tag:
descriptor = new MHPLabelDescriptor();
break;
case MHPCachingPriorityDescriptor.Tag:
descriptor = new MHPCachingPriorityDescriptor();
break;
case MHPContentTypeDescriptor.Tag:
descriptor = new MHPContentTypeDescriptor();
break;
default:
throw (new InvalidOperationException("BIOPDescriptor: Tag not recognized - " + byteData[index]));
}
descriptor.Process(byteData, index);
return (descriptor);
}
/// <summary>
/// Parse the message.
/// </summary>
/// <param name="byteData">The MPEG2 section containing the message.</param>
/// <param name="index">Index of the first byte of the message in the MPEG2 section.</param>
/// <param name="objectInfoLength">The length of the object information data.</param>
public override void Process(byte[] byteData, int index, int objectInfoLength)
{
lastIndex = index;
try
{
if (objectInfoLength != 0)
{
fileContentSize = Utils.Convert8BytesToLong(byteData, lastIndex);
lastIndex += 8;
if (objectInfoLength > 8)
{
contentTypeDescriptors = new Collection <MHPContentTypeDescriptor>();
int workingLength = objectInfoLength - 8;
while (workingLength != 0)
{
MHPContentTypeDescriptor descriptor = new MHPContentTypeDescriptor();
descriptor.Process(byteData, lastIndex);
contentTypeDescriptors.Add(descriptor);
workingLength = descriptor.Index - lastIndex;
lastIndex = descriptor.Index;
}
}
}
serviceContextCount = (int)byteData[lastIndex];
lastIndex++;
if (serviceContextCount != 0)
{
serviceContexts = new Collection <BIOPServiceContext>();
while (serviceContexts.Count != serviceContextCount)
{
BIOPServiceContext serviceContext = new BIOPServiceContext();
serviceContext.Process(byteData, lastIndex);
serviceContexts.Add(serviceContext);
lastIndex = serviceContext.Index;
}
}
messageBodyLength = Utils.Convert4BytesToInt(byteData, lastIndex);
lastIndex += 4;
contentLength = Utils.Convert4BytesToInt(byteData, lastIndex);
lastIndex += 4;
if (contentLength != 0)
{
contentData = Utils.GetBytes(byteData, lastIndex, contentLength);
lastIndex += contentLength;
}
Validate();
}
catch (IndexOutOfRangeException)
{
throw (new ArgumentOutOfRangeException("The BIOP File message is short"));
}
}
/// <summary>
/// Parse the message.
/// </summary>
/// <param name="byteData">The MPEG2 section containing the message.</param>
/// <param name="index">Index of the first byte of the message in the MPEG2 section.</param>
/// <param name="objectInfoLength">The length of the object information data.</param>
public override void Process(byte[] byteData, int index, int objectInfoLength)
{
lastIndex = index;
try
{
if (objectInfoLength != 0)
{
fileContentSize = Utils.Convert8BytesToLong(byteData, lastIndex);
lastIndex += 8;
if (objectInfoLength > 8)
{
contentTypeDescriptors = new Collection<MHPContentTypeDescriptor>();
int workingLength = objectInfoLength - 8;
while (workingLength != 0)
{
MHPContentTypeDescriptor descriptor = new MHPContentTypeDescriptor();
descriptor.Process(byteData, lastIndex);
contentTypeDescriptors.Add(descriptor);
workingLength = descriptor.Index - lastIndex;
lastIndex = descriptor.Index;
}
}
}
serviceContextCount = (int)byteData[lastIndex];
lastIndex++;
if (serviceContextCount != 0)
{
serviceContexts = new Collection<BIOPServiceContext>();
while (serviceContexts.Count != serviceContextCount)
{
BIOPServiceContext serviceContext = new BIOPServiceContext();
serviceContext.Process(byteData, lastIndex);
serviceContexts.Add(serviceContext);
lastIndex = serviceContext.Index;
}
}
messageBodyLength = Utils.Convert4BytesToInt(byteData, lastIndex);
lastIndex += 4;
contentLength = Utils.Convert4BytesToInt(byteData, lastIndex);
lastIndex += 4;
if (contentLength != 0)
{
contentData = Utils.GetBytes(byteData, lastIndex, contentLength);
lastIndex += contentLength;
}
Validate();
}
catch (IndexOutOfRangeException)
{
throw (new ArgumentOutOfRangeException("The BIOP File message is short"));
}
}
