Turns your Realtek RTL2832 based DVB dongle into a FM radio stereo receiver.

RTL SDR FM Streamer is a small tool to stream FM stereo radio by using a DVB-T dongle to a client e.g Kodi, VLC or mplayer.

The DVB-T dongle has to be based on the Realtek RTL2832U. See http://sdr.osmocom.org/trac/wiki/rtl-sdr for more RTL SDR details.

Default port: 2346

$ ./rtl_fm_streamer

The options "-P" defines the port where the HTTP server is listen on.

e.g. port 12345

$ ./rtl_fm_streamer -P 12345

To connect to the server you can use KODI, VLC or mplayer. Just connect to the URL

mono: "http://IP:port/FrequencyInHerz"
mono: "http://IP:port/FrequencyInHerz/0"
stereo: "http://IP:port/FrequencyInHerz/1"

To use this tool in KODI simply create a *.strm file e.g. "FM_93_2.strm"

http://localhost:2346/93200000

rtl_fm_streamer comes with a JSON-RPC 1.0 API. It is listening at port 2345 but you can specify the port with the parameter "-j".

$ ./rtl_fm_streamer -j 1234

Provided methods

Example Set Frequency client --> rtl_fm_streamer

{"method": "SetFrequency", "params": [93200000]}

rtl_fm_streamer --> client

{"result": [93200000]}

Mono: Should run on many small devices. e.g. a Raspberry Pi 1. Stereo: Needs a lot of more CPU power compared to mono (tested on a Raspberry Pi 2). On modern PCs (x86, x64) mono and stereo decoding should be possible easily (tested with an Intel CORE i7 and an Intel CORE 2 Duo)

• Server accepts only one client

• Occasional segmentation faults after disconnect of a client

To compile rtl_fm_streamer just do the following steps (install git, cmake and libev first).

$ sudo apt-get install build-essential libusb-1.0-0-dev libev-dev
$ git clone https://github.com/AlbrechtL/rtl_fm_streamer.git
$ cd rtl_fm_streamer/
rtl_fm_streamer$ mkdir build
rtl_fm_streamer$ cd build
rtl_fm_streamer/build$ cmake ../
rtl_fm_streamer/build$ make

• FM Radio receiver based upon RTL-SDR as pvr addon for KODI
  • http://esmasol.de/open-source/kodi-add-on-s/fm-radio-receiver/
  • xbmc/xbmc#6174
  • https://github.com/AlwinEsch/pvr.rtl.radiofm
• rtl_fm
  • This tool is the base of rtl_fm_streamer
  • http://sdr.osmocom.org/trac/wiki/rtl-sdr
• sdr-j-fmreceiver
  • http://www.sdr-j.tk/index.html
• GPRX
  • http://gqrx.dk

OpenELEC thread: http://openelec.tv/forum/126-3rd-party/75537-fm-radio-receiver-for-kodi-for-the-raspberry-pi-1 raspberrypi.org thread: https://www.raspberrypi.org/forums/viewtopic.php?f=38&t=122372

Write me an e-mail: Albrecht [email protected]