The following packages are required:
- git
- build-essential
- cmake
- autoconf
- libtool
- libao-dev
- libfftw3-dev
- librtlsdr-dev
$ mkdir build && cd build
$ cmake [options] ..
$ make
$ sudo make install
Available build options:
-DUSE_COLOR=ON Colorize log output. [default=OFF]
-DUSE_NEON=ON Use NEON instructions. [ARM, default=OFF]
-DUSE_SSE=ON Use SSSE3 instructions. [x86, default=OFF]
-DUSE_FAST_MATH=ON Use unsafe math optimizations. [default=OFF]
-DUSE_THREADS=ON Enable multithreading. [default=ON]
-DUSE_FAAD2=ON AAC decoding with FAAD2. [default=ON]
You can test the program using the included sample capture:
$ xz -d < ../support/sample.xz | src/nrsc5 -r - 0
Building with Homebrew
$ brew install --HEAD https://raw.githubusercontent.com/theori-io/nrsc5/master/nrsc5.rb
This was designed for use with an RTL-SDR dongle since that was our testing platform.
Options:
frequency rtl-sdr center frequency in MHz or Hz
(do not provide frequency when reading from file)
program audio program to decode
(0, 1, 2, or 3)
-d device-index rtl-sdr device
-g gain rtl-sdr gain (0.1 dB)
(automatic gain selection if not specified)
-p ppm-error rtl-sdr ppm error
-r samples-input read samples from input file
-w samples-output write samples to output file
-o audio-output write audio to output file
-f adts|hdc|wav audio format: adts, hdc, or wav
(hdc playback requires modified faad2)
-q disable log output
-l log-level set log level
(1 = DEBUG, 2 = INFO, 3 = WARN)
Examples:
$ nrsc5 -p 63 -g 490 -w samples1071 107.1 0
$ nrsc5 -r samples1071 0
$ nrsc5 -o - -f adts 90.5 0 | mplayer -