Process process = Runtime.getRuntime().exec(ffmpegCmd);

As an AI language model, I don't have access to the full context of your code. However, I can explain this line of code in general terms.

The line of code creates a new process using the `Runtime` class and the `exec` method. The `exec` method takes a command as a parameter and creates a subprocess to execute that command.

In this particular case, the command is `ffmpegCmd`, which is likely a string containing a command for the FFmpeg library. FFmpeg is a popular open-source multimedia framework that can encode, decode, transcode, and stream audio and video files.

So, this line of code is likely creating a new process to execute an FFmpeg command. The specifics of the command and what the process will do will depend on the code that precedes this line.