From 6e40287e2f39a80fc72bd8d0fbc1a8334d688c2d Mon Sep 17 00:00:00 2001 From: etobi Date: Tue, 3 Sep 2013 09:48:38 +0200 Subject: Imported Upstream version 1.1.0 --- util/szap/README | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 util/szap/README (limited to 'util/szap/README') diff --git a/util/szap/README b/util/szap/README new file mode 100644 index 0000000..5c83c67 --- /dev/null +++ b/util/szap/README @@ -0,0 +1,47 @@ +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-dvbs-astra n24 + +will tune to N24. For DVB-C, Berlin Cable channel config: + +$ ./czap -c channels.conf-dvbc-berlin Arte + +For DVB-T, Berlin Config: + +$ ./czap -c channels.conf-dvbt-berlin phoenix + +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: + +$ ./czap -c channels.conf-dvbt-berlin phoenix -r +[keep it running in one console] +$ cat /dev/dvr/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 + -- cgit v1.2.3