How should I validate encoded data?

[chasehan-atlas]

Hey,

I try to use snappy with golang, I see JS and Java has a function named isValidCompressed which can validate the encoded buffer, but I can't see that function with golang.
I am thinking to use decode function directly. And if it returns error, it means the encoded buffer is invalid. But I am not sure that's safe/correct or not.
Such as below:
byte[] bytes = Snappy.isValidCompressedBuffer(recordBytes) ? Snappy.uncompress(recordBytes) : recordBytes;
Anyone have any ideas on how to safe and quickly validate the encoded buffer?

[klauspost]

Just decompress. But check if size is reasonable with DecodedLen first.