如何以 C# 语言实现的字节拆分 wmv 文件？

Question

I have a wmv file whose size is 300 bytes. I want to split it into several bytes (example: (150 bytes each) or (3 100 bytes)). How do I implement this in C# Language?

Answer 1

It really depends on whether you want the files to work or not. Splitting them in chunks is easy: Read them into a byte array, have a for loop that copies part of the array to a file of size CHUNK, without forgetting to copy the final bytes of the file. Splitting them in working files is different.

Answer 2

I would try to just stream it without explicit splitting (the tcp stack will split it as it likes^^). If you have a good codec it will play it anyway. (Vlc can always plays the videos while downloading)

Answer 3

The real answer is, just use a streaming server and forget about writing a streaming protocol. Thats crazy. To split a file into byte segments you could use something like the code below. Not thats untested, but it should be about 95% complete.

You should take a look at the proto spec if you havent already. http://msdn.microsoft.com/en-us/library/cc251059(v=PROT.10).aspx And if you have, and you asked this question, you dont stand an ice cubes chance in hell at making it work,

        int chunkSize = 300;
        var file = File.Open("c:\file.wmv", FileMode.Open);
        var numberOfChunks = (file.Length/chunkSize)+1;
        byte[][] fileBytes = new byte[numberOfChunks][];
        for (int i = 0; i < numberOfChunks; i++)
        {
            int bytesToRead = chunkSize;
            if (i == numberOfChunks + 1)
            {
                bytesToRead = (int)(file.Length - (i * chunkSize));
            }
            fileBytes[i] = new byte[bytesToRead];
            file.Read(fileBytes[i], i * chunkSize, bytesToRead);
        }