Thanks for answering Rémi.VLC 1.1 did not support ISDB-T. If it worked, I guess your device driver pretended to provide DVB-T.
VLC 1.2 ISDB-T support is entirely based on guess work and likely broken. We have no way to make it work in Europe since there are no ISDB broadcasts.
Sure.I am not sure ISDB-T receiver really work in Japan. Are every terrestrial broadcasts not encrypted there? Then that is down to South America, and there are no VLC developers in that (sub)continent.
Can you paste the channels.conf anyway?
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[ 15.509397] dvb-usb: found a 'DiBcom STK8096GP reference design' in warm state.
[ 15.521144] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[ 16.086194] dvb-usb: schedule remote query interval to 50 msecs.
[ 16.086200] dvb-usb: DiBcom STK8096GP reference design successfully initialized and connected.
[ 16.086372] usbcore: registered new interface driver dvb_usb_dib0700
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# ISDB-T channel frequencies as defined in Brazil
# By ABNT NBR 15608-1
# VHF channels 7 to 13 are also specified but not in usage yet
#
# UHF channels 14 to 69
T 473142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 14
T 479142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 15
T 485142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 16
T 491142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 17
T 497142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 18
T 503142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 19
T 509142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 20
T 515142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 21
T 521142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 22
T 527142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 23
T 533142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 24
T 539142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 25
T 545142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 26
T 551142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 27
T 557142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 28
T 563142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 29
T 569142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 30
T 575142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 31
T 581142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 32
T 587142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 33
T 593142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 34
T 599142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 35
T 605142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 36
# channel 37 not used
T 617142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 38
T 623142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 39
T 629142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 40
T 635142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 41
T 641142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 42
T 647142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 43
T 653142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 44
T 659142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 45
T 665142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 46
T 671142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 47
T 677142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 48
T 683142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 49
T 689142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 50
T 695142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 51
T 701142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 52
T 707142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 53
T 713142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 54
T 719142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 55
T 725142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 56
T 731142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 57
T 737142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 58
T 743142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 59
T 749142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 60
T 755142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 61
T 761142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 62
T 767142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 63
T 773142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 64
T 779142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 65
T 785142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 66
T 791142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 67
T 797142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 68
T 803142857 6MHz AUTO AUTO AUTO AUTO AUTO NONE # channel 69
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$scan ch.conf > channels.conf
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RECORD BAHIA 1SEG:515142857:INVERSION_AUTO:BANDWIDTH_6_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_NONE:0:0:9464
RECORD BAHIA HD:515142857:INVERSION_AUTO:BANDWIDTH_6_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_NONE:0:0:9440
TV ARATU DIGITAL:539142857:INVERSION_AUTO:BANDWIDTH_6_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_NONE:4097:4099:9472
TV ARATU DIGITAL:539142857:INVERSION_AUTO:BANDWIDTH_6_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_NONE:4113:4115:9496
TVBA HDTV:563142857:INVERSION_AUTO:BANDWIDTH_6_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_NONE:273:274:9536
TVBA MOBILE:563142857:INVERSION_AUTO:BANDWIDTH_6_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_NONE:529:530:9560
Rede Vida 1Seg:647142857:INVERSION_AUTO:BANDWIDTH_6_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_NONE:500:510:60376
Rede Vida HD:647142857:INVERSION_AUTO:BANDWIDTH_6_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_NONE:501:511:60352
BAND BA:665142857:INVERSION_AUTO:BANDWIDTH_6_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_NONE:529:530:9529
BAND BAHIA HD:665142857:INVERSION_AUTO:BANDWIDTH_6_MHZ:FEC_AUTO:FEC_AUTO:QAM_AUTO:TRANSMISSION_MODE_AUTO:GUARD_INTERVAL_AUTO:HIERARCHY_NONE:273:274:9504
I am running vlc 2.0.1 in a quadcore Q9600 with an nvidia GT 240 card (plus the proprietary driver 295.20), and I have no issue with the performance
with ISDB-TB. I have vdpau-video installed, so vlc can use the hardware acceleration, but even turnning it off, I still have no issue.
I also leave the deinterlace mode in auto, because the signal is 1080i, and everything is smooth (cpu usage less than 60% most of the time).
However, watching avi videos (xvid, mp4, etc...) with the hardware acceleration on, the video stutters, and I have to I turn it off, so everything is back to normal. Unfortunately, vdpau-video has not been updated for a long time (http://www.splitted-desktop.com/static/ ... pau-video/)
and it really amazes me it still working for decoding my TV video signal. Noneteheless, this is an ffmpeg issue, I guess (I use version 0.10.2).
With the hardware acceleration on, I get a series of
[mpeg4 @ 0x7f68c4c2b5e0] marker does not match f_code
[mpeg4 @ 0x7f68c4c2b5e0] marker does not match f_code
messages on the console, when playing videos.
Anyway, if you use hardware acceleration, it is a godd idea to try without it ...
So it is probably a decoding performance issue. Because, just like I said, it can play 1080p without problems.It seems you're running a kernel that's more recen than the kernel headers that VLC was compiled with. This should not affect performance though.
Do you mean a weak signal?Looks like corrupt input, possibly due to bad SNR.
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