Step 2 will take a bit longer, but I want to get it on the roadmap to keep ffmpeg-python easy to use. Keeping only the video, English audio and subtitles however encode the video (fast crf 25): Processing what you mapped is done sequentially, -map 0:0 is the video stream. I can't work on it tonight but will hopefully get step 1 done in the next day or two. A simple FFmpeg map example to create an audio only and then a video only copy from the input: Because Stream 0:1 is the audio stream and 0:0 is the video stream. video() on their input stream, and ffmpeg-python won't try to hold their hand.Ģ: Make it so that audio streams are automatically processed and mapped separately, in an intuitive but predictable manner. And if someone really wants the default ffmpeg behavior of dropping audio streams, all they'd have to do is put. That way we get all of the power of ffmpeg but none of the headache of having to keep track of separate streams, at least for simple examples. ffmpeg-python would expand it to the more complicated picture as needed:

Ffmpeg copy audio stream only