I have been doing a lot of searching today for C# libraries which will allow me to create H.264 encoded video files. Does anyone know if any such libraries or 3rd party components exist?
Use ffmpeg. I suggest to run a ffmpeg process directly, like in this sample: http://jasonjano.wordpress.com/2010/02/09/a-simple-c-wrapper-for-ffmpeg/
While the sample doesn't deal with the operation you need, I suggest to adapt it to your needs.
ffmpeg-sharp is probably a good starting point.
来源：https://stackoverflow.com/questions/2509648/how-can-i-create-an-h-264-encoded-movie-from-a-set-of-images-in-c