C# - Binary reader in Big Endian?

C# - Binary reader in Big Endian?

By default, the BinaryReader class in C# reads data in Little Endian format. However, if you need to read data in Big Endian format, you can create a custom BinaryReader implementation that handles the byte order conversion. Here's an example of how you can read data in Big Endian using a custom BinaryReader:

using System.IO;

public class BigEndianBinaryReader : BinaryReader
{
    public BigEndianBinaryReader(Stream stream) : base(stream)
    {
    }

    public override ushort ReadUInt16()
    {
        byte[] data = base.ReadBytes(2);
        Array.Reverse(data);
        return BitConverter.ToUInt16(data, 0);
    }

    public override uint ReadUInt32()
    {
        byte[] data = base.ReadBytes(4);
        Array.Reverse(data);
        return BitConverter.ToUInt32(data, 0);
    }

    // Add additional methods for other data types as needed
}

In the above example, the BigEndianBinaryReader class extends the BinaryReader class and overrides the ReadUInt16 and ReadUInt32 methods to read data in Big Endian format. The overridden methods read the bytes using the base ReadBytes method, reverse the byte order using Array.Reverse, and then convert the byte array to the respective data type using BitConverter.ToUInt16 and BitConverter.ToUInt32.

You can add additional methods to handle other data types as needed, such as ReadInt16, ReadInt32, ReadSingle, etc., following the same pattern of reversing the byte order before converting the byte array.

Here's an example of how you can use the BigEndianBinaryReader to read data in Big Endian format:

using (FileStream fileStream = File.OpenRead("path/to/file.bin"))
using (BigEndianBinaryReader reader = new BigEndianBinaryReader(fileStream))
{
    ushort value1 = reader.ReadUInt16();
    uint value2 = reader.ReadUInt32();
    // ...
}

In the above example, we create an instance of BigEndianBinaryReader and use it to read ushort and uint values from the file in Big Endian format.

Please note that this custom implementation assumes that the input stream contains data in Big Endian format and doesn't handle potential errors or exceptions that may occur during the reading process. Adapt the code according to your specific needs and handle any potential exceptions that may arise when working with the stream or converting the data.

Examples

  1. "C# BinaryReader read Int32 in Big Endian"

    • Code:
      using (BinaryReader reader = new BinaryReader(inputStream))
{
    int value = IPAddress.NetworkToHostOrder(reader.ReadInt32());
}
    • Description: Reads a 32-bit integer in Big Endian format using BinaryReader and adjusts for network byte order.

  2. "C# BinaryReader read UInt16 in Big Endian"

    • Code:
      using (BinaryReader reader = new BinaryReader(inputStream))
{
    ushort value = BitConverter.ToUInt16(reader.ReadBytes(2).Reverse().ToArray(), 0);
}
    • Description: Reads a 16-bit unsigned integer in Big Endian format using BinaryReader and BitConverter.

  3. "C# BinaryReader read Double in Big Endian"

    • Code:
      using (BinaryReader reader = new BinaryReader(inputStream))
{
    double value = BitConverter.ToDouble(reader.ReadBytes(8).Reverse().ToArray(), 0);
}
    • Description: Reads a double-precision floating-point number in Big Endian format using BinaryReader and BitConverter.

  4. "C# BinaryReader read String in Big Endian"

    • Code:
      using (BinaryReader reader = new BinaryReader(inputStream, Encoding.BigEndianUnicode))
{
    string value = reader.ReadString();
}
    • Description: Reads a string in Big Endian Unicode format using BinaryReader with a specified encoding.

  5. "C# BinaryReader read Int16 array in Big Endian"

    • Code:
      using (BinaryReader reader = new BinaryReader(inputStream))
{
    short[] values = reader.ReadBytes(2 * arrayLength)
                           .Select((b, i) => new { Byte = b, Index = i })
                           .GroupBy(x => x.Index / 2)
                           .Select(g => BitConverter.ToInt16(g.Reverse().Select(x => x.Byte).ToArray(), 0))
                           .ToArray();
}
    • Description: Reads an array of 16-bit integers in Big Endian format using BinaryReader and BitConverter.

  6. "C# BinaryReader read custom data structure in Big Endian"

    • Code:
      using (BinaryReader reader = new BinaryReader(inputStream))
{
    CustomStructure value = new CustomStructure
    {
        Field1 = reader.ReadInt32(),
        Field2 = reader.ReadDouble(),
        // Add additional fields as needed
    };
}
    • Description: Reads a custom data structure with various fields in Big Endian format using BinaryReader.

  7. "C# BinaryReader read Decimal in Big Endian"

    • Code:
      using (BinaryReader reader = new BinaryReader(inputStream))
{
    int[] bits = reader.ReadBytes(16)
                       .Reverse()
                       .Select((b, i) => (int)b << (i * 8))
                       .ToArray();
    decimal value = new decimal(bits);
}
    • Description: Reads a decimal number in Big Endian format using BinaryReader and reconstructs it from its 128-bit binary representation.

  8. "C# BinaryReader read DateTime in Big Endian"

    • Code:
      using (BinaryReader reader = new BinaryReader(inputStream))
{
    long ticks = BitConverter.ToInt64(reader.ReadBytes(8).Reverse().ToArray(), 0);
    DateTime value = new DateTime(ticks, DateTimeKind.Utc);
}
    • Description: Reads a DateTime value in Big Endian format using BinaryReader and BitConverter.

  9. "C# BinaryReader read Guid in Big Endian"

    • Code:
      using (BinaryReader reader = new BinaryReader(inputStream))
{
    Guid value = new Guid(reader.ReadBytes(16).Reverse().ToArray());
}
    • Description: Reads a GUID in Big Endian format using BinaryReader and constructs a Guid object.

  10. "C# BinaryReader read custom structure array in Big Endian"

    • Code:
      using (BinaryReader reader = new BinaryReader(inputStream))
{
    CustomStructure[] values = Enumerable.Range(0, arrayLength)
                                        .Select(_ => new CustomStructure
                                        {
                                            Field1 = reader.ReadInt32(),
                                            Field2 = reader.ReadDouble(),
                                            // Add additional fields as needed
                                        })
                                        .ToArray();
}
    • Description: Reads an array of custom data structures in Big Endian format using BinaryReader.

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