How to use ffmpeg convert a file from one format to another

FFmpeg is a powerful tool capable of handling various format conversions for video and audio. The basic command-line structure is as follows:

bash
ffmpeg -i input_filename.input_format -codec:v video_encoder -codec:a audio_encoder output_filename.output_format

Let me provide a specific example. Suppose we need to convert an MP4 file to an AVI file. We can use the following command:

bash
ffmpeg -i input.mp4 -codec:v libx264 -codec:a libmp3lame output.avi

In this example:

• -i input.mp4 specifies the input file.
• -codec:v libx264 sets the video codec to libx264, a widely adopted choice for generating high-quality video.
• -codec:a libmp3lame sets the audio codec to libmp3lame, the standard encoder for MP3 audio.
• output.avi is the designated output file.

This command processes the conversion and generates a new AVI file. You can adjust the codecs or other parameters as needed to accommodate different quality requirements or file size constraints.

Additionally, FFmpeg supports numerous advanced options, such as adjusting resolution, bitrate, or applying filters for video editing, making it a highly versatile tool suitable for diverse media processing tasks.