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Add support for zstd compressed depot chunks #1503

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xPaw opened this issue Feb 6, 2025 · 0 comments · May be fixed by #1504

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xPaw commented Feb 6, 2025 •

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There is a library we can use: https://github.com/oleg-st/ZstdSharp (ValveResourceFormat has been using this)

steamclient ref: CChunkDataStore::CompressAndEncryptChunk::VZStdCompressToBuffer and DecryptAndUncompressChunk

magic header appears to be VSZa (compared to VZa for lzma) with zsv (zv for lzma) trailer?

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Add speculative support for zstd compressed chunks #1504

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