Wav problem

[easly1989]

Hello there, Trying to Unzip this -> https://github.com/anoyetta/ACT.Hojoring/releases/download/v4.0.12/ACT.Hojoring-v4.0.12.7z I get several errors for every *.wav file it is trying to extract.

The error is: Not supported Method specified (translated from: Specifiato metodo non supportato)

The stack is:

in SharpCompress.Compressors.LZMA.DecoderRegistry.CreateDecoderStream(CMethodId id, Stream[] inStreams, Byte[] info, IPasswordProvider pass, Int64 limit) in SharpCompress.Compressors.LZMA.DecoderStreamHelper.CreateDecoderStream(Stream[] packStreams, Int64[] packSizes, Stream[] outStreams, CFolder folderInfo, Int32 coderIndex, IPasswordProvider pass) in SharpCompress.Compressors.LZMA.DecoderStreamHelper.CreateDecoderStream(Stream inStream, Int64 startPos, Int64[] packSizes, CFolder folderInfo, IPasswordProvider pass) in SharpCompress.Common.SevenZip.ArchiveDatabase.GetFolderStream(Stream stream, CFolder folder, IPasswordProvider pw) in SharpCompress.Common.SevenZip.SevenZipFilePart.GetCompressedStream() in SharpCompress.Archives.SevenZip.SevenZipArchiveEntry.OpenEntryStream() in SharpCompress.Archives.IArchiveEntryExtensions.WriteTo(IArchiveEntry archiveEntry, Stream streamToWriteTo) in SharpCompress.Archives.IArchiveEntryExtensions.WriteToFile(IArchiveEntry entry, String destinationFileName, ExtractionOptions options) in SharpCompress.Archives.IArchiveEntryExtensions.WriteToDirectory(IArchiveEntry entry, String destinationDirectory, ExtractionOptions options) in ActorConsole.Program.Unzip(String installText, String zip, String destination, Boolean deleteDir) in D:\GIT\ffxiv_actor\ActorConsole\Program.cs:riga 191

The code I use to extract is: ` using (var archive = ArchiveFactory.Open(zip)) { var archiveEntries = archive.Entries.Where(x => !x.IsDirectory && !x.IsEncrypted).ToArray(); var count = 1; foreach (var entry in archiveEntries) { try { var value = (100 * count) / archiveEntries.Length; Console.Write($"\r{installText} {value}%"); count++;

                    entry.WriteToDirectory(destination, new ExtractionOptions { ExtractFullPath = true, Overwrite = true });
                }
                catch (Exception e)
                {
                    Console.WriteLine(e);
                }

            }
        }

`

All the other files gets estracted without any problem.

Any help?

[adamhathcock]

Honestly, I'm not sure off the top of my head. If the LZMA decoder doesn't like wav files I'm not sure how to fix that.

Ugh, I hate the 7Zip format.

[easly1989]

maybe i'm just doing something wrong. If you, or someone else, would like to try and unzip that file (the link in the OT) maybe you can come up with a solution (or just find out i'm the one messing up)

Thank you for the answer btw

[ghost]

@easly1989 you are not doing anything wrong; WAV files appear to compress using the FILTER_DELTA flag, which is not supported by the current implementation in SharpCompress (in Compressors\LZMA\Registry.CreateDecoderStream, the switch case for k_Delta falls through to the exception you are seeing).

@adamhathcock at some point 7zip started automatically detecting sub-blocks that would be good candidates for having the delta filter applied. This filter reorders the bytes being loaded by some offset, as can be seen from the C code 7zip is based on. The delta state size is set as #define DELTA_STATE_SIZE 256.

It is late where I'm at, so I may just be tired, but I believe this mirrors some of the logic found in LzBinTree in the LZMA SDK.