Ok, found a README in CVS that answers azap related questions, I'm duplicating it here for future tinkerers benefit. --------------------------------------------------------------------------------------------------------------- Hi, this are some trivial zapping applications explaining how to use the frontend and demux API. They are also pretty useful to test your hardware. For DVB-S, Astra Channel config file: $ ./szap -c channels-conf/dvb-s/Astra-19.2E n24 will tune to N24. For DVB-C, Berlin Cable channel config: $ ./czap -c channels-conf/dvb-c/de-Berlin Arte For DVB-T, Berlin Config: $ ./tzap -c channels-conf/dvb-t/de-Berlin phoenix For ATSC, Raleigh Durham Config: $ ./azap -c channels-conf/atsc/us-Raleigh-Durham WRAL will tune to WRAL's Digital Channel 5-1. By default the MPEG stream is routed to a hardware decoder. If you want to record the stream to disk you will route it to the DVR device by using the '-r' option: $ ./tzap -c channels-conf/dvb-t/de-Berlin phoenix -r [keep it running in one console] $ cat /dev/dvb/adapter0/dvr0 > /tmp/recording.ts [in a second console, will dump the MPEG transport stream to /tmp/recording.ts] The status messages have the following meaning: status 0x1f --- The demodulator status bits. 0x1f means all bits set, everything ok. signal [0x0000...0xffff] --- Signal Strength. Values above 0x8000 should be ok. snr [0x0000...0xffff] --- Signal/Noise Ratio. Values above 0x8000 are ok. ber [0...0xffffffff] --- Bit Error Rate. The less the better. unc [0...0xffffffff] --- Number of Uncorrectable Blocks. Small numbers are Preferable. If everything is alright and all frontend circuits are working stable (are locked) you should see a FE_HAS_LOCK in the rightmost line. Good luck, Holger --------------------------------------------------------------------------------------------------------------- On 10/21/05, Luis Ochoa <luis.m.ochoa@xxxxxxxxx> wrote: > I wanted to use mplayer, and I read I had to do "azap -r", but don't know > why. > What does the -r option do? > > this is what I get: > > azap -r c1 > using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' > tuning to 621012500 Hz > video pid 0x0000, audio pid 0x0211 > status 00 | signal 0000 | snr 0000 | ber 00000000 | unc 0000ffff | > status 1f | signal 0000 | snr feb6 | ber 00000000 | unc 0000ffff | > FE_HAS_LOCK
