Convert Video For Chromecast

Chromecast does only support a selection of audio and video codecs. I have used the following a lot to convert almost any video for streaming on the Chromecast:

$ ffmpeg \
  -i input.mp4 \
  -map 0:v:0 \
  -c:v copy \
  -map 0:a:0 \
  -map 0:a:0 \
  -c:a:0 aac \
  -ac:a:0 2 \
  -b:a:0 192k \
  -c:a:1 copy \

This post is mostly just a copy&paste from Just reposting this here to preserve the information. All credits to the original author.