Bemix Notes

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Revision as of 20:19, 15 January 2006 by (Talk) (URL Scheme)

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Bemix is a web-based media player. It supports multiple soundcards and various networked client types, allowing a group to use a centralized server to control several speakers. Commands are issued through URLs, where the URL portion of the address represents the command to be issued, while the GET portion of the URL passes in parameters to the server.

URL Scheme

All URLs are relative to, and all URLs have an output=[html, client]. An example URL is


  • (s,c)play?playerId=x
  • (s,c)pause?playerId=x
  • (s,c)stop?playerId=x
  • (s,c)loadList?playerId=x&playlistId=y
  • (s,c)player?playerId=x


  • (s,c)create?name=x
  • (s,c)delete?playlistId=x
  • (s,c)add?playlistId=x&song=y
  • (s,c)remove?playlistId=x&index=y
  • (s,c)playlist?playlistId=x


  • (s)browse?dir=x


  • (s,c)players
  • (s,c)playlists


Each command returns a data structure through HTTP defining variable names and values. Every command contains at least one success variable, whose values may be either true or false.

Client Types

Bemix is capable of dumping data in multiple of formats. Currently on "client" and "html" formats are planned, but XML/RDF formats are possibly in the future. The format of the export is indicated in the URL by the output parameter.


The "client" output format returns data in a simple newline-delimited list. String values are not delimited by quote characters, and list items are delimited by commas (including a comma after the final element). The format of each line is name=value, where name is the name of the variable being returned, and value is the value of the variable. No whitespace characters are inserted between name, =, and value.

The result of the playlist command:

name=the list

The result of the playlists command: