[linux-dvb] Time till channel has lock

[Martin Neuditschko <yosuke.tomoe@gmx.net>]

Hi!

I am using a Hauppauge DVB-c Cable-Card,
kernel-2.4.18,
Newstruct driver snapshot from today (09.10.02)
UPC-Telekabel-Austria -> QAM_256

If I start "./czap RTL2" sometimes it only uses about 5 seconds
to lock the channel, but sometimes it uses up to 2 minutes.
I have tested this one channel only (RTL2).
I mean I started "czap RTL2", waited till channel is locked,
killed czap and started "czap RTL2" again without switching to
any other channel.

If I use the newstruct driver snapshot from 08.09.02 it is much
faster. Some ideas about the problem?

From channels.conf:
RTL2:378000000:INVERSION_OFF:6900000:FEC_AUTO:QAM_256:2240:2241
(2240 is the video PID, 2241 the audio PID - I believe this is coded
 in the right way)

melchior:/usr/local/src/devel/newstruct_021009/apps/szap # ./czap RTL2
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
tuning to 378000000 Hz
status 00 | signal 8f8f | snr d3d3 | ber 0000b167 | unc 0000007f |
status 00 | signal b2b2 | snr d4d4 | ber 0000b167 | unc 0000007f |
status 00 | signal c2c2 | snr d4d4 | ber 0000b167 | unc 0000007f |
status 00 | signal d2d2 | snr d4d4 | ber 0000b167 | unc 0000007f |
status 07 | signal 8787 | snr dada | ber 0000b167 | unc 0000007f |
status 00 | signal a0a0 | snr d2d2 | ber 0000b167 | unc 0000007f |
status 00 | signal baba | snr d3d3 | ber 0000b167 | unc 0000007f |
status 00 | signal c5c5 | snr d6d6 | ber 0000b167 | unc 0000007f |
status 00 | signal c6c6 | snr d4d4 | ber 0000b167 | unc 0000007f |
status 00 | signal cbcb | snr d4d4 | ber 0000b167 | unc 0000007f |
status 00 | signal bebe | snr d6d6 | ber 0000b167 | unc 0000007f |
status 00 | signal d1d1 | snr d5d5 | ber 0000b167 | unc 0000007f |
status 00 | signal c9c9 | snr d4d4 | ber 0000b167 | unc 0000007f |
status 00 | signal c8c8 | snr d3d3 | ber 0000b167 | unc 0000007f |
status 07 | signal 8787 | snr d8d8 | ber 0000b167 | unc 0000007f |
status 07 | signal 8787 | snr d8d8 | ber 0000b167 | unc 0000007f |
status 07 | signal 8787 | snr d8d8 | ber 0000b167 | unc 0000007f |
status 07 | signal 8787 | snr d8d8 | ber 0000b167 | unc 0000007f |
status 07 | signal 8787 | snr d7d7 | ber 0000b167 | unc 0000007f |
status 07 | signal 8787 | snr dada | ber 0000b167 | unc 0000007f |
status 07 | signal 8787 | snr d7d7 | ber 0000b167 | unc 0000007f |
status 07 | signal 8787 | snr d9d9 | ber 0000b167 | unc 0000007f |
status 00 | signal 9f9f | snr d2d2 | ber 0000b167 | unc 0000007f |
status 00 | signal b2b2 | snr d5d5 | ber 0000b167 | unc 0000007f |
status 00 | signal b8b8 | snr d5d5 | ber 0000b167 | unc 0000007f |
.
.
. [after about 2 min]
status 00 | signal b7b7 | snr d5d5 | ber 0000b167 | unc 0000007f |
status 00 | signal baba | snr d3d3 | ber 0000b167 | unc 0000007f |
status 00 | signal d2d2 | snr d1d1 | ber 0000b167 | unc 0000007f |
status 00 | signal bebe | snr d2d2 | ber 0000b167 | unc 0000007f |
status 1f | signal ffff | snr eded | ber 0000b167 | unc 0000007f | FE_HAS_LOCK
status 1f | signal ffff | snr eeee | ber 0002d16a | unc 00000000 | FE_HAS_LOCK
status 1f | signal ffff | snr eded | ber 0002d16a | unc 00000000 | FE_HAS_LOCK
status 1f | signal ffff | snr eded | ber 0000ae9e | unc 00000000 | FE_HAS_LOCK
status 1f | signal ffff | snr eded | ber 0000ae9e | unc 00000000 | FE_HAS_LOCK
status 1f | signal ffff | snr eded | ber 0000b0db | unc 00000000 | FE_HAS_LOCK
status 1f | signal ffff | snr ecec | ber 0000b0db | unc 00000000 | FE_HAS_LOCK


-- 
best regards
Martin Neuditschko


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