-[ HackTV - Analogue TV transmitter for the HackRF ]-

WHAT'S IT DO

Generates a PAL/NTSC/SECAM* video signal from a video file or test pattern.
Also supports the older 819, 405, 240 and 30 line standards.
Input is any file type or URL supported by ffmpeg.
Output can be to a file or directly to a HackRF.
Teletext support.
NICAM stereo audio.
Videocrypt I/II hardware support.
Videocrypt S simulator.
Partial Nagravision Syster hardware support.

* SECAM support is very basic and won't produce a good image.

WHAT'S IT NOT DO (yet)

There are no filters. Needed for proper audio and VSB modulation.
An optional notch filter for the colour subcarrier would be nice.
D-MAC / D2-MAC standards.

WHAT IT WON'T DO

DVB or other pure digital signals.
Bring back Firefly. :(

REQUIREMENTS

Depends on libhackrf and various ffmpeg libraries.

* For Fedora (with rpmfusion)
yum install hackrf-devel osmo-fl2k-devel SoapySDR-devel ffmpeg-devel

* For Debian and related
apt-get update
apt-get install libhackrf-dev libavutil-dev libavdevice-dev libswresample-dev libswscale-dev libavformat-dev libavcodec-dev

INSTALL

make
make install

EXAMPLES

# Generate a file containing a PAL baseband signal from a video
$ hacktv -o baseband.bin -m pal example.mkv

# Transmit a test pattern on UHF channel 31 (PAL System I), 47dB TX gain
$ hacktv -f 551250000 -m i -g 47 test

# Transmit a test pattern with teletext
$ hacktv -f 551250000 -m i -g 47 --teletext demo.tti test

# Download and transmit teletext pages from the Teefax service
# http://teastop.co.uk/teletext/
$ svn checkout http://teastop.plus.com/svn/teletext/ teefax
$ hacktv -f 551250000 -m i -g 47 --teletext teefax test

-Philip Heron <phil@sanslogic.co.uk>