FFmpeg.AutoGen VS ILSpy

It's been a while since I messed with this stuff, but FFmpeg.AutoGen it's pretty good once you get a few wrappers set up to abstract away all the ugly API calls.

I would recommend you take a look at https://github.com/Ruslan-B/FFmpeg.AutoGen which provide thin wrapper for FFMPEG for dotnet. Because this is thin wrapper, you probably have to teach yourself a bit on FFmpeg APi which is a pain. Maybe you can try other libraries which do not claim mobile support, I think you just need native DLL to make other project works.

I have some problems with outdated methods like "avcodec_decode_video2", currently frame splits to three horizontally and turns into black-white, i can't provide my code now because im not at pc but it really same to https://github.com/Ruslan-B/FFmpeg.AutoGen/blob/master/FFmpeg.AutoGen.Example/VideoStreamDecoder.cs, it not related to C# because i using FFmpeg.Autogen (unsafe bindings without any wrapping)

https://github.com/Ruslan-B/FFmpeg.AutoGen is great, but quite tricky to use. Basically you'll need to create an AVFormatContext with a custom AVIOContext (pb field, see libavformat docs). This IOContext contains the read() and seek() functions, which you'll create using avio_alloc_context(). For the seek() implementation, just make a new request with Content-Range for subsequent reads. After everything is set up, you can just seek based on a time code using avformat_seek_file().

We used libav directly with FFmpeg.Autogen, with some manual tweaking to certain structures that allowed us to inject proprietary ad timing metadata (not my decision, that came from higher up). Gave me a great excuse to learn how .NET interop works.

It actually uses the native FFmpeg C API directly (libav) instead of the command line tool, with FFmpeg.AutoGen.

First, go grab this: https://github.com/icsharpcode/ILSpy. It's a decompiler that will break Rust down. Hope you like C#.

If its a C#/.NET exe you can use ILSpy to get the source code https://github.com/icsharpcode/ILSpy

Well, it might not be exactly what you're asking for, but ILSpy lets you choose what version of C# you wish to decompile an assembly to. This is great for learning how a specific feature used to be coded in C# prior to some new syntax/compiler feature being added.

You will thoroughly enjoy this, then.

I've only used their GUI frontend myself, but ILSpy is also available as a library and command line tool.

As you can see IL code is not exactly human readable, and it's also quite verbose. If you want to have an idea of how your code looks like in IL you can use a decompiler tool such as JustDecompile or ILSpy.

Take a random piece of C# software, run it through ILSpy, and be amazed at the results.