How can I use ffmpeg with the x264 codec to encode video files efficiently?

To use ffmpeg with the x264 codec for efficient video encoding, you can specify the codec using the "-c:v libx264" option in the command line. Additionally, you can adjust parameters like bitrate, preset, and tune to optimize the encoding process for quality and file size. Experimenting with these settings can help you achieve the desired balance between video quality and file size.