ODR-DabMod
From Opendigitalradio
CRC-DabMod is the DAB OFDM modulator command developed by Communication Research Center (CRC) from Canada. It is free but not open source yet.
CRC-DabMod take an ETI (Ensemble Transport Interface) stream as input and output a complex baseband stream of samples with a default sampling frequency of 2.048MHz.
More information
Description can be found on http://mmbtools.crc.ca/content/view/39/65/
Source code is now released (since September 2008).