[ update -- aktualni dvb frekvence a odpovidajici channels.conf pro Prahu ]

$ cat dvb-Praha
# DVB-T Praha (Prague, Czech Republic)
# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
# CT multiplex 1 kanal 53
T 730000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE
# CRa multiplex 2 kanal 41
T 634000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE
# CDG multiplex 3 kanal 46
T 674000000 8MHz 2/3 NONE QAM64 8k 1/16 NONE
# TO2 multiplex 4 kanal 64
T 818000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE

$ cat channels.conf
CT
1:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:257:273:257
CT
2:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:513:529:258
CT
24:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:769:785:259
CT
4:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:1025:1041:260
CRo1-Radiozurnal
:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:0:4113:16641
CRo2-Praha
:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:0:4369:16642
CRo3-Vltava
:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:0:4625:16643
CRo Radio Wave
:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:0:4881:16644
CRo D-dur
:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:0:5137:16645
CRo Leonardo
:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:0:5393:16646
CRo Radio Cesko
:730000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:0:5649:16647
NOVA
CINEMA:634000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:401:411:514
 NOVA:634000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:101:111:513
BARRANDOV
TV:634000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:301:311:2049
Prima
COOL:634000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:501:511:770
PRIMA:634000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:201:211:769
Ocko:674000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:257:258:1025
PublicTV:674000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:769:770:1537
Z1:674000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:1025:1026:1793
Proglas:674000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:0:4097:17153
Noe
TV:674000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:513:514:1281
CT1 (HD
Test):818000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:1101:1102:1
Nova (MPEG-4
HD):818000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:1201:1202:2
O2 Info
(MPEG-2):818000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:1301:1302:3
Test 4
(MPEG-2):818000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:1401:1402:4


== BASICS ==

usb 1-3: new high speed USB device using ehci_hcd and address 3
dvb-usb: found a 'AVerMedia AverTV DVB-T USB 2.0 (A800)' in warm state.
dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
DVB: registering new adapter (AVerMedia AverTV DVB-T USB 2.0 (A800)).
dib3000: Found a DiBcom 3000P.
DVB: registering frontend 0 (DiBcom 3000P/M-C DVB-T)...
dvb-usb: schedule remote query interval to 150 msecs.
dvb-usb: AVerMedia AverTV DVB-T USB 2.0 (A800) successfully initialized and connected.

- http://www.linuxtv.org/downloads/firmware/
- http://www.linuxtv.org/downloads/linuxtv-dvb-apps-1.1.0.tar.bz2

Technicke parametry vysilani viz
- http://www.cra.cz/main.php?pageid=823
- http://www.digitv.cz/Czech/ppframe.htm

[root@pc134c ~]# cat dvb/Praha
# DVB-T Praha (Prague, Czech Republic)
# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
# CRa - Ceske radiokomunikace
T 506000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE
# CDG - Czech Digital Group
T 674000000 8MHz 2/3 NONE QAM64 8k 1/16 NONE
# Telecom
T 818000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE

./scan dvb/Praha > ~/.tzap/channel.conf
(scan z dvb-apps, viz vyse)

Pak lze utilitou tzap (ze stejneho baliku) naladit tuner na jeden z programu
v channels.conf a prehrat si stream mplayerem

./tzap -r "CT 1"

a ve vedlejsim terminalu pak mplayer /dev/dvb/adapter0/dvr0 (za predpokladu 
ze tzap hlasi FE_HAS_LOCK a tedy ma naladeny signal)

== STREAMOVANI, REKODOVANI, UKLADANI ==

Pokud zadame spravne parametry VLC na prikazove radce (frekvence a kanal)
neni potreba ani .dvbrc. Nejak ho umi vytvorit i satscan, ale to jsem nezkousel.
Melo by aktualne fungovat neco jako

LNB ID 1 TYPE 2
  SAT ID 1 NAME "DVBT-Prague" LNBID 1 FMIN 500000000 FMAX 778000000
    TRANSPONDER ID 0001 SATID 0001 TYPE 2 FREQ 506000000 BANDWIDTH 0 HP_RATE 2 LP_RATE 2 MODULATION 1 TRANSMISSION_MODE 1 GUARD_INTERVAL 3 HIERARCHY 0
      CHANNEL ID 0 SATID 1 TPID 1 SID 0 TYPE 0
      CHANNEL ID 1 NAME "CT1.A" SATID 1 TPID 1 SID 1 TYPE 0
      CHANNEL ID 2 NAME "CT2.A" SATID 1 TPID 1 SID 2 TYPE 0
      CHANNEL ID 3 NAME "CT24.A" SATID 1 TPID 1 SID 3 TYPE 0
      CHANNEL ID 4 NAME "NOVA.A" SATID 1 TPID 1 SID 4 TYPE 0

Nicmene nasledujici commandy mi funguji i bez .dvbrc:


frequency=506000000
# ASF stream of CT1, CT2, CT24, CT4 - Sport and Nova
#vlc -v dvb: --dvb-frequency="$frequency" --dvb-bandwidth=8 --ts-es-id-pid \
	--programs=1,2,3,4,5 --sout \
	'#transcode{vcodec=mp4v}:duplicate{dst=std{access=http,mux=asf,url=HOSTNAME.CZ:PORTNUMBER/ct1},select="program=1",dst=std{access=http,mux=asf,url=HOSTNAME.CZ:PORTNUMBER/ct2},select="program=2",dst=std{access=http,mux=asf,url=HOSTNAME.CZ:PORTNUMBER/ct24},select="program=3",dst=std{access=http,mux=asf,url=HOSTNAME.CZ:PORTNUMBER/ct4},select="program=4",dst=std{access=http,mux=asf,url=HOSTNAME.CZ:PORTNUMBER/ct24},select="program=3",dst=std{access=http,mux=asf,url=HOSTNAME.CZ:PORTNUMBER/nova},select="program=5"}' \
	2>/dev/null


# ASF stream of CT2
#vlc -v dvb: --dvb-frequency="$frequency" --dvb-bandwidth=8 --programs=2 \
	--sout '#transcode{vcodec=mp4v,acodec=mpga,vb=1000,ab=128,deinterlace}:duplicate{dst=std{access=http,mux=asf,url=HOSTNAME.CZ:PORTNUMBER/ct2}}' \
	2> /dev/null



# ASF stream of CT2 && dump to /root/ct2.asf file
#vlc -v dvb: --dvb-frequency="$frequency" --dvb-bandwidth=8 --programs=2 \
	--sout '#transcode{vcodec=mp4v,acodec=mpga,vb=1000,ab=128,deinterlace}:duplicate{dst=std{access=file,dst=/root/ct2.asf,mux=asf},dst=std{access=http,mux=asf,url=HOSTNAME.CZ:PORTNUMBER/ct2}}' \
	2> /dev/null



# ASF stream of CT2 - DOWNSAMPLED
#vlc -v dvb: --dvb-frequency="$frequency" --dvb-bandwidth=8 --programs=2 \
	--sout '#transcode{vcodec=mp4v,acodec=mpga,vb=250,ab=128,deinterlace}:duplicate{dst=std{access=http,mux=asf,url=HOSTNAME.CZ:PORTNUMBER/ct2}}' \
	2> /dev/null

Sometimes I get much better results with

--sout
'#transcode{deinterlace=enable,vcodec=mp4v,vb=2048,scale=1}:duplicate{dst=std{access=http,mux=ogg,dst=:8080/}}'