使用ffmpeg提取视频文件的英语音频

Question

I like to extract the English audio stream of a video file using ffmpeg. Also, if the file doesn't have an English audio stream, I want to extract all audio streams. Preferably with a language suffix in their names, if their languages is known.

Answer 1

First, you need to submit your file to get informations regarding streams :

ffmpeg -i your_file.mp4

Then you will get all streams corresponding to your file. For example : Stream #0:4(eng) for an english subtitle

Then you can extract audio doing :

ffmpeg -i input.mp4 -map 0:4 -c copy audio0.mp3

to extract audio as an mp3 file