val inFinished = flags and FLAG_END_STREAM != 0
    val gzipped = flags and FLAG_COMPRESSED != 0
    if (gzipped) {
      throw IOException("PROTOCOL_ERROR: FLAG_COMPRESSED without SETTINGS_COMPRESS_DATA")
    }

    val padding = if (flags and FLAG_PADDED != 0) source.readByte() and 0xff else 0
    val dataLength = lengthWithoutPadding(length, flags, padding)