[linux-dvb] Skystar HD test results and some questions

Konstantin Dimitrov kosio.dimitrov at gmail.com
Sun Oct 14 12:12:11 CEST 2007


Q2) when i run "cat /dev/dvb/adapter0/dvr0 > ~/dvbs.ts" and the card
is tuned to DVB-S channel with MPEG-2 video then i got playable (with
mplayer) TS file, but when i do the same for DVB-S2 channel with H.264
video mplayer plays only the audio and reports:

TS file format detected.
VIDEO MPEG2(pid=767) AUDIO MPA(pid=768) NO SUBS (yet)!  PROGRAM N. 0
MPEG: FATAL: EOF while searching for sequence header.
Video: Cannot read properties.

so how to dump correct TS file with H.264 video ?

thank you!

best wishes,
konstantin

On 10/14/07, Konstantin Dimitrov <kosio.dimitrov at gmail.com> wrote:
> hello Manu,
>
> i have Technisat Skystar HD card with STB0899 revision C2L, so early
> today i got your code from http://jusst.de/hg/multiproto and run some
> tests.
>
> i'm using hacked szap from http://abraham.manu.googlepages.com/szap.c
> with the patch from here:
>
> http://www.linuxtv.org/pipermail/linux-dvb/2007-October/021054.html
>
> and the following locktest.sh shell script:
>
> #!/bin/sh
> i=0
> j=0
> while [[ $i -lt $4 ]]
> do
> i=$((i + 1))
> ./szap -t $3 -x $1
> if [[ $? -eq 1 ]]
> then
> echo "fail: $i"
> j=$((j + 1))
> fi
> sleep $2
> done
> echo "succ: $((i - j)) | fail: $j"
>
> i run all tests on Astra 19.2E satellite with the following channels.conf:
>
> Pro7HD:12722:h:0:22000:255:259:10200
> NRJ:11538:v:0:22000:608:628:6908
>
> for every test i do the following steps:
>
> 1. trim /var/log/debug, /var/log/syslog, /var/log/messages
> 2. modprobe stb6100 verbose=5; modprobe stb0899 verbose=5; modprobe budget_ci
> 3. run locktest.sh, e.g. for the DVB-S channel i run "locktest.sh NRJ
> 5 0 20 > szap.out.nrj", which means: tune to channel NRJ, sleep for 5
> seconds between two consecutive tune tries, use DVB-S and do 20 tune
> tries; for DVB-S2 i run "locktest.sh Pro7HD 5 2 20 > szap.out.pro7hd"
> 4. rmmod budget_ci; rmmod stb0899; rmmod stb6100
> 5. save /var/log/debug, /var/log/syslog, /var/log/messages and
> szap.out.$chan_name
> 6. go to 1.
>
> i repeated the test many times and the results are similar.
>
> the attached "nrjhits.tar.gz" contains the logs for one of the DVB-S
> tests, 16 successful locks out of 20, try 7, 8, 9 and 17 fail to lock,
> some interesting things that i've noticed during the DVB-S test are:
> - in 3 out of 5 runs of "locktest.sh NRJ 5 0 20" always exactly try 7,
> 8, 9 and 17 fails to lock, so seems like same kind of pattern
> - when run "locktest.sh NRJ 5 0 100", i got around 80 successful locks
> out of 100, but when run "locktest.sh NRJ 45 0 100", i got around 95
> successful locks out of 100, so seems that increasing the sleep time
> between two consecutive tune tries significantly increase the
> successful lock rate
>
> during one of the DVB-S tests with "locktest.sh NRJ 5 0 20" i received
> the following message "FE_DISEQC_SEND_BURST failed: Connection timed
> out" and that test have only 9 successful locks out of 20, try 2, 3,
> 4, 6, 7, 8, 9, 15, 16, 17 and 19 fails to lock, the attached
> "nrjhits_diseqc.tar.gz" contains the logs from that test, because
> maybe "FE_DISEQC_SEND_BURST failed: Connection timed out" is somehow
> connected to the (un)successful lock rate.
>
> the attached "pro7hd.tar.gz" contains the logs for one of the DVB-S2
> tests, 18 successful locks out of 20, try 12 and 14 fail to lock,
> increasing the sleep time between two consecutive tune tries with
> DVB-S2 doesn't help and i always have around 90% successful locks.
>
> so, to summarize i got about 80% successful lock with DVB-S and 90%
> successful locks with DVB-S2.
>
> i am open to help you with what i can, e.g. running more tests under
> your instructions, etc.
>
> also i have some questions:
>
> Q1) here:
>
> http://linuxtv.org/pipermail/linux-dvb/2007-January/015585.html
>
> you are saying that revision C1L of STB0899 is faulty, fails to lock a
> lot and we shouldn't buy cards with STB0899 revision C1L, but here:
>
> http://linuxtv.org/pipermail/linux-dvb/2007-October/021133.html
>
> you are saying that cards with C1L tune quiet fine and the lock
> problems are only with revision C2L, so that confuses me a lot, could
> you please clarify the situation with different revisions of STB0899 ?
>
> Q2) when i run "
>
>



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