private static Stream CreateDecoderStream(Stream[] packStreams, long[] packSizes, Stream[] outStreams, CFolder folderInfo, int coderIndex, IPasswordProvider pass)
{
int num2;
CCoderInfo info = folderInfo.Coders[coderIndex];
if (info.NumOutStreams != 1)
{
throw new NotSupportedException("Multiple output streams are not supported.");
}
int inStreamIndex = 0;
for (num2 = 0; num2 < coderIndex; num2++)
{
inStreamIndex += folderInfo.Coders[num2].NumInStreams;
}
int num3 = 0;
for (num2 = 0; num2 < coderIndex; num2++)
{
num3 += folderInfo.Coders[num2].NumOutStreams;
}
Stream[] inStreams = new Stream[info.NumInStreams];
num2 = 0;
while (num2 < inStreams.Length)
{
int num4 = folderInfo.FindBindPairForInStream(inStreamIndex);
if (num4 >= 0)
{
int outIndex = folderInfo.BindPairs[num4].OutIndex;
if (outStreams[outIndex] != null)
{
throw new NotSupportedException("Overlapping stream bindings are not supported.");
}
int num6 = FindCoderIndexForOutStreamIndex(folderInfo, outIndex);
inStreams[num2] = CreateDecoderStream(packStreams, packSizes, outStreams, folderInfo, num6, pass);
if (outStreams[outIndex] != null)
{
throw new NotSupportedException("Overlapping stream bindings are not supported.");
}
outStreams[outIndex] = inStreams[num2];
}
else
{
int index = folderInfo.FindPackStreamArrayIndex(inStreamIndex);
if (index < 0)
{
throw new NotSupportedException("Could not find input stream binding.");
}
inStreams[num2] = packStreams[index];
}
num2++;
inStreamIndex++;
}
long limit = folderInfo.UnpackSizes[num3];
return(DecoderRegistry.CreateDecoderStream(info.MethodId, inStreams, info.Props, pass, limit));
}
private static Stream CreateDecoderStream(Stream[] packStreams, long[] packSizes, Stream[] outStreams,
CFolder folderInfo, int coderIndex, IPasswordProvider pass)
{
var coderInfo = folderInfo.Coders[coderIndex];
if (coderInfo.NumOutStreams != 1)
{
throw new NotSupportedException("Multiple output streams are not supported.");
}
int inStreamId = 0;
for (int i = 0; i < coderIndex; i++)
{
inStreamId += folderInfo.Coders[i].NumInStreams;
}
int outStreamId = 0;
for (int i = 0; i < coderIndex; i++)
{
outStreamId += folderInfo.Coders[i].NumOutStreams;
}
Stream[] inStreams = new Stream[coderInfo.NumInStreams];
for (int i = 0; i < inStreams.Length; i++, inStreamId++)
{
int bindPairIndex = folderInfo.FindBindPairForInStream(inStreamId);
if (bindPairIndex >= 0)
{
int pairedOutIndex = folderInfo.BindPairs[bindPairIndex].OutIndex;
if (outStreams[pairedOutIndex] != null)
{
throw new NotSupportedException("Overlapping stream bindings are not supported.");
}
int otherCoderIndex = FindCoderIndexForOutStreamIndex(folderInfo, pairedOutIndex);
inStreams[i] = CreateDecoderStream(packStreams, packSizes, outStreams, folderInfo, otherCoderIndex,
pass);
//inStreamSizes[i] = folderInfo.UnpackSizes[pairedOutIndex];
if (outStreams[pairedOutIndex] != null)
{
throw new NotSupportedException("Overlapping stream bindings are not supported.");
}
outStreams[pairedOutIndex] = inStreams[i];
}
else
{
int index = folderInfo.FindPackStreamArrayIndex(inStreamId);
if (index < 0)
{
throw new NotSupportedException("Could not find input stream binding.");
}
inStreams[i] = packStreams[index];
//inStreamSizes[i] = packSizes[index];
}
}
long unpackSize = folderInfo.UnpackSizes[outStreamId];
return(DecoderRegistry.CreateDecoderStream(coderInfo.MethodId, inStreams, coderInfo.Props, pass, unpackSize));
}