Difference between revisions of "Digitenne (Nederlands)"

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(Testing the DVB-t receiver now works)
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  mplayer: No such file or directory
 
  mplayer: No such file or directory
 
  Failed to open LIRC support. You will not be able to use your remote control.
 
  Failed to open LIRC support. You will not be able to use your remote control.
 
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  Playing /dev/dvb/adapter0/dvr0.
 
  Playing /dev/dvb/adapter0/dvr0.
 
  TS file format detected.
 
  TS file format detected.

Revision as of 19:14, 16 May 2011

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Deze pagina behandelt het decoderen van digitenne (DVB-T) in Nederland.

DVB-T ontvanger testen

Controle device nodes

Kijk eerst of er een DVB ontvanger aanwezig is. Onder /dev hoort de map dvb aanwezig te zijn:

$ ls -l /dev/dvb/adapter0/*
crw-rw---- 1 root video 212, 4 May 15 10:21 /dev/dvb/adapter0/demux0
crw-rw---- 1 root video 212, 5 May 15 10:21 /dev/dvb/adapter0/dvr0
crw-rw---- 1 root video 212, 3 May 15 10:21 /dev/dvb/adapter0/frontend0
crw-rw---- 1 root video 212, 7 May 15 10:21 /dev/dvb/adapter0/net0

DVB-T ontvanger testen met vlc

Gebruik nu vlc om de ontvanger te testen:

# pacman -S vlc
$vlc
Media -> Open Capture device,
Capture mode : DVB
Adapter card to tune: /dev/dvb/adapter0
DVB type: DVB-T
Transponder / multiplex frequency: 722000
Bandwidth: auto => play

Nu zal vlc alle kanalen scannnen, en na ongeveer 10 minuten het eerste beeld en/of geluid geven.

Als de permisies van /dev/dvb/adapter0 verkeerd staan zal vlc de volgende melding geven:

dvb access error: FrontEndOpen: opening device failed (Permission denied)
main input error: open of `dvb://frequency=0000' failed: (null)

Voeg dan jezelf toe aan de groep "video":

# usermod -a -G video yourusername

DVB-T ontvanger testen met tzap en mplayer

Installeer mplayer en tzap (onderdeel van linuxtv-dvb-apps)

# pacman -S linuxtv-dvb-apps mplayer

Scan nu naar de digitenne kanalen in nederland:

$ mkdir ~/.tzap
$ scan /usr/share/dvb/dvb-t/nl-All -o zap | tee ~/.tzap/channels.conf
scanning /usr/share/dvb/dvb-t/nl-All
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 474000000 0 1 9 3 1 3 0
initial transponder 474000000 0 2 9 3 1 3 0
>>> tune to: 474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_1_2:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE
0x0000 0x044d: pmt_pid 0x1b62 Digitenne -- Nederland 1 (running)
0x0000 0x044e: pmt_pid 0x1b6c Digitenne -- Nederland 2 (running)
0x0000 0x044f: pmt_pid 0x1b76 Digitenne -- Nederland 3 (running)
0x0000 0x0450: pmt_pid 0x1b80 Digitenne -- TV Rijnmond (running)
0x0000 0x0457: pmt_pid 0x1bc6 Digitenne -- Radio Rijnmond (running)
0x0000 0x0458: pmt_pid 0x1bd0 Digitenne -- Radio 1 (running)
0x0000 0x0459: pmt_pid 0x1bda Digitenne -- Radio 2 (running)
0x0000 0x045a: pmt_pid 0x1be4 Digitenne -- 3FM (running)
0x0000 0x045b: pmt_pid 0x1bee Digitenne -- Radio 4 (running)
0x0000 0x045c: pmt_pid 0x1bf8 Digitenne -- Radio 5 (running)
0x0000 0x045d: pmt_pid 0x1c02 Digitenne -- Radio 6 (running)
0x0000 0x045f: pmt_pid 0x1c16 Digitenne -- FunX (running)
Network Name 'Digitenne'
>>> tune to: 482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_1_2:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
...

Dit levert het bestand ~/.tzap/channels.conf op. Hierin is te zien dat Nederland 1,2 en 3 op 474 MHz zitten, en dat Discovery channel op 498MHz zit. De frekwenties zijn afhankelijk van uw locatie.

Nederland 1:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_1_2:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:7011:7012:1101
Nederland 2:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_1_2:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:7021:7022:1102
Nederland 3:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_1_2:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:7031:7032:1103
...
Nickelodeon:498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:3051:3052:35
Discovery Channel:498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:3061:3062:36
Eurosport 1:498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE:3071:3072:37

Nu kan de tuner afgestemd worden op bijvoorbeeld Nederland 1

$ tzap -a 0 -r 'Nederland 1'
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
reading channels from file '/home/cedric/.tzap/channels.conf'
tuning to 474000000 Hz
video pid 0x1b63, audio pid 0x1b64
status 1b | signal 0dbd | snr 0062 | ber 001fffff | unc 00000000 | FE_HAS_LOCK
status 1b | signal 0d83 | snr 0063 | ber 00000000 | unc 00001e81 | FE_HAS_LOCK
status 1b | signal 0d17 | snr 0069 | ber 00000000 | unc 00001ef6 | FE_HAS_LOCK

Gebruik een andere terminal om mplayer te starten:

$ mplayer /dev/dvb/adapter0/dvr0 
MPlayer SVN-r33159-4.5.2 (C) 2000-2011 MPlayer Team
162 audio & 359 video codecs
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing /dev/dvb/adapter0/dvr0.
TS file format detected.
VIDEO MPEG2(pid=7021) AUDIO MPA(pid=7022) NO SUBS (yet)!  PROGRAM N. 0
VIDEO:  MPEG2  704x576  (aspect 3)  25.000 fps  15000.0 kbps (1875.0 kbyte/s)
Load subtitles in /dev/dvb/adapter0/
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
==========================================================================
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 160.0 kbit/10.42% (ratio: 20000->192000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
AO: [oss] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
Unsupported PixelFormat 61
Unsupported PixelFormat 53
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 704x576 => 1024x576 Planar YV12 
A:22383.9 V:22383.9 A-V:  0.052 ct: -0.257 569/569  4%  3% 24.6% 3 0