Scanning of H.264 DVB channels under Linux
At present scan from dvb-apps doesn’t support the DVB-T test multiplexes currently running in NZ because it doesn’t recognise H.264 as a valid video stream. The recent switch of the TVNZ DTT Mux to AAC based audio has complicated matters further as these are also not recognised.
We aren’t alone in NZ with these issues. The recently started transmissions in Norway also use a combination of H.264 and AAC.
In addition to my original patch for H.264 detection I’ve now added support for two types of AAC audio, and the MHEG and DSM-CC interactive TV data streams.
These changes have now been pushed back to the dvb-apps developers, and you can try out the patch yourself here.
If you have been using the tool w_scan to perform a full UHF/VHF scan for possible DVB multiplexes I have also produced an equivalent patch.