I have a Vorbis audio and VP8 encoded video, and would like to mux them into WebM format.
How do I mux them with FFmpeg, and also set the display aspect ratio to 16:9?
I'm using Windows 7 with the latest FFmpeg build.
A basic remuxing example:
ffmpeg -i video -i audio -c copy -aspect 16:9 output.webm
-c copy will enable stream copy mode and therefore will avoid re-encoding.
-aspect was used with
-c copy, the aspect ratio will be stored at the container level; not in the video stream. I'm not sure if WebM supports this, or if players will pay attention to it, but I will assume it does.