Chromecast

This implements a basic number of the google chromecast commands. Other than the basic commands, it also allows you to play media files from your computer either individually or in a playlist; the playlist command will look at all the files in a folder and play them, if it is a known media type, on at a time

Can play / load a local media file on your chromecast. Currently the chromecast default media receiver only supports the following formats:

Supported Media formats:
    - MKV
    - MP4
    - WebM

If an AVI file is found it will use ffmpeg to transcode it to MP4 (in a temp file) and use cast the transcoded mp4 file.

Commands

NAME:
   Chromecast - cli to interact with chromecast

USAGE:
   chromecast [global options] command [command options] [arguments...]

VERSION:
   0.0.1

COMMANDS:
    list      list available chromecasts
    status    current status of the chromecast
    pause     pause current media
    unpause   unpause current media
    reset     reset the current playing media
    end       go to end of current playing media
    seek      seek to a delta in the current playing media
    playlist  loads a playlist and plays the media
    load      load a mp4 media to play
    repl      repl for running commands
    help, h   Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --debug, -d    log debug information
   --uuid value, -u value  specify chromecast uuid
   --help, -h     show help
   --version, -v  print the version

Examples

$ make build
$ ./chromecast status                       # Shows the status of the chromecast
$ ./chromecast pause                        # Pauses the current chromecast application
$ ./chromecast unpause                      # Unpauses the current chromecast application
$ ./chromecast reset                        # Resets the current chromecast application to the beginning
$ ./chromecast end                          # Ends the current chromecast application
$ ./chromecast seek <int>                   # Seeks to a playing time in the current chromecast application
$ ./chromecast load <filename.mp4>          # Loads a media file to play on the chromecast application
$ ./chromecast load <filename> video/mp4    # Loads a media file with content type 'mp4' to play on the chromecast application
$ ./chromecast load <url> video/mp4         # The chromecast will play this media file from the url
$ ./chromecast playlist <folder>            # This will loop through all the files in a folder and play them one-by-one
$ ./chromecast repl                         # Starts an interactive session

TODO

- Add flag to go into interactive mode after running command
- Add metadata to loaded media
- add sorting to playlist order
- Fix logging / debug information
- Add exploratory repl commands to try different things on the media and default connections
- Cache the dns result of the chromecast

Resources

- https://github.com/xat/castnow
- https://github.com/trenskow/stream-transcoder.js/blob/master/lib/transcoder.js
- https://github.com/heartszhang/mp4box
- https://github.com/dhowden/tag
- https://github.com/balloob/pychromecast
- https://developers.google.com/cast/docs/reference/receiver/cast.receiver.media
- https://creativcoders.wordpress.com/2014/12/12/stream-live-mp4-video-with-ffmpeg-while-encoding/
- https://rigor.com/blog/2016/01/optimizing-mp4-video-for-fast-streaming