Command line Zello player

This is a command line tool to play audio files on a Zello channel.

It uses TS Zello library.

The tool is currently under development and is not ready for "production". There are things to do first, see the TODO section below.

Installation

Linux (Ubuntu)

Install the player:

$ npm i -g ts-zello-player

Install FFmpeg:

$ sudo apt-get install ffmpeg

Install build-essential package:

$ sudo apt-get install build-essential

Install Roboto font:

$ sudo apt-get install fonts-roboto

Other OSes

Haven't tested or tried. Contributions are welcome.

Configuration

Create a json file credentials.json in the following format:

{
    "username": "<User Name>",
    "password": "<Password>",
    "auth_token": "<Auth Token>",
    "channel": "<Channel Name>"
}

See Zello authentication docs on how to get the token for your account.

Quick start

Play a file on the default channel from credentials.json:

$ ts-zello-player "file.mp3" 

Play a YouTube video on another channel:

$ ts-zello-player -c ChannelName "https://www.youtube.com/watch?v=0hLnMDJ-gV4"

Play a file

• from 35th second
• at 0.75 speed
• at 0.5 volume
• with bitrate of 32 Kbps
• on the channel "ChannelName":

$ ts-zello-player -b 32 -t 0.75 -l 0.5 -c ChannelName file.mp3 35

For the full list of options see below.

Usage

$ ts-zello-player --help

Usage: ts-zello-player [options] <file> [start]
Usage: ts-zello-player [options] <youtube link> [start]

Positionals:
  target  A target to play, either file path or a YouTube link          [string]
  start   Start playback at                                             [string]

Options:
      --version      Show version number                               [boolean]
  -b, --bitrate      Bitrate in Kbps                      [number] [default: 48]
  -l, --volume       Volume factor                                      [number]
  -r, --rate         (re)Sampling rate
                    [choices: 8000, 12000, 16000, 24000, 48000] [default: 48000]
  -t, --tempo        Tempo factor                                       [number]
  -f, --frame        Frame size  [choices: 2.5, 5, 10, 20, 40, 60] [default: 20]
      --credentials  Credentials file path[string] [default: "credentials.json"]
  -c, --channel      Zello channel to connect to                        [string]
  -p, --preview      Show recording image preview     [boolean] [default: false]
  -i, --info         Show recording text information  [boolean] [default: false]
      --normalize    Normalize sound with FFmpeg "loudnorm" filter
                                                      [boolean] [default: false]
      --compress     Compress sound with FFmpeg "acompressor" filter
                                                      [boolean] [default: false]
  -h, --help         Show help                                         [boolean]

Examples:
  ts-zello-player file.mp3                  play file.mp3
  ts-zello-player https://www.youtube.com/  play audio from the YouTube video
  watch?v=0hLnMDJ-gV4

TODO

• Finish this README
• Record a short helping screencast
• Add retry strategy selection to the command line options