You need to duplicate the FFmpeg. In other words, this behaves just like -map 0:v -map 0:a:0 -map 0:s:0 which isn't what I need. Step 1: First of all, put all video records to be join in one document envelope and name it MP4 Step 2: Then visit the following web address to download the FFmpeg on your computer: Step 3: After that, get into this MP4 document and open the 'container' record organizer. It still copies the first audio and first subtitle stream, no matter which stream is which language. However, if I try the following: (based on answers found in similar questions like this and this)įfmpeg -i input.mkv -map 0:v -map 0:a:m:language:spa -map 0:s:m:language:eng -c copy output.mkv I am trying to get this ffmpeg command right, and think I am close but not quite there. Unfortunately, not all videos contain the same language streams at the same index, so instead of using something like -map 0:a:2 I am trying to select the streams based on metadata. I want to copy all files but maintaining only the spanish audio streams, and the english subtitle streams (and the video stream of course). The streams contain metadata specifying which stream is which langauge.

I have a bunch of video files with multiple audio and subtitle streams (in different languages).

Ffmpeg map best video