My TV - DVB-T channel changes are very slow and hiccup... (1 Viewer)

[Taipan]

Windows Version: XP Professional, SP2
CPU Type: AMD 2700+
Memory: 512 MB
Motherboard: Gigabyte 7VM400M-RZ
Motherboard Chipset: VIA KM400
Motherboard Bios: Award, F5
Video Card: ATI Radeon 9550
Video Card Driver: 6.2
Sound Card: VIA VT1617
Sound Card AC3: no AC3
Sound Card Driver: 6.14.1.4100
1. TV Card: Dvico FusionHDTV DVB-T
1. TV Card Type: DVB-T
1. TV Card Driver: 3.30.01
2. TV Card: DNTVLive! LP
2. TV Card Type: DVB-T
2. TV Card Driver: 2.0.0.4
Video Codec: NVIDIA Pure video v1.02.196
Audio Codec: Dscaler
Satelite/CableTV Provider: n/a
HTPC Case: Custom built
Power Supply: 200W, custom modified
Remote: MCE 2005 (EU version)
TV: BENQ DLP Projector
TV - HTPC Connection: Sub-D


Changing TV stations (using the My TV page Channel Menu) is very slow (typically 4 seconds) followed by "hiccups" in the sound and video at about 10 seconds later. It used to be less than 2 seconds, with no hiccups in the video and audio.

Here's a section of my MediaPortal.log file that illustrates the time delays - the first line (violet) is the command to change channels. The red line (4 seconds later) is when the video appeared and the two blue lines are when the "hiccup" occurred (at 10 seconds).

I have "Grab DVB EPG" unselected, so I am not sure why this line "DVBGraph: grab epg for Seven" appears?

19/03/2006 8:52:33 PM GUITVHome.ViewChannel(): View channel=Seven ts:False
19/03/2006 8:52:33 PM add cmd:MediaPortal.TV.Recording.ViewTvCommand #1
19/03/2006 8:52:33 PM Command: view tv channeleven
19/03/2006 8:52:33 PM Recorder: Use card: DNTV Live! LP Tuner Card
19/03/2006 8:52:33 PM Commandtop tv card:1
19/03/2006 8:52:33 PM Recorder: tv channel changedeven
19/03/2006 8:52:33 PM teletext: clear teletext cache
19/03/2006 8:52:33 PM TVCapture: change channel to even
19/03/2006 8:52:33 PM DVBGraph: ShouldRebuildGraph(Seven) current ac3:False new channel ac3:False
19/03/2006 8:52:33 PM DVBGraph:TuneChannel() tune to channel:1
19/03/2006 8:52:33 PM DVBGraph: tuning details: frequency:177500 kHz ONID:4115 TSID:1283 SID:1328 provider:unknown
19/03/2006 8:52:33 PM DVBGraphBDAubmitTuneRequest() frequency:177500 kHz Bandwidth:7 ONID:4115 TSID:1283, SID:1328
19/03/2006 8:52:35 PM DVBGraphBDA: signal strength:100 signal quality:96 signal present:True locked:True
19/03/2006 8:52:35 PM DVBGraphetHardwarePidFiltering to:0,1,10,11,12,D3,D2,301,302,300,304,
19/03/2006 8:52:36 PM DVBGraph:TuneChannel() done freq:177500 ONID:4115 TSID:1283 prog:1328 audio:302 video:301 pmt:300 ac3:FFFFFFFF txt:304
19/03/2006 8:52:36 PM DVBGraph:set mpeg2demuxer video:0x301 audio:0x302 ac3:0xFFFFFFFF
19/03/2006 8:52:36 PM DVBDemuxereven audio:302 video:301 teletext:304 pmt:300 subtitle:0 program:1328
19/03/2006 8:52:36 PM teletext: grab teletext for card: DNTV Live! LP Tuner Card
19/03/2006 8:52:36 PM Recorder: tv channel changedeven
19/03/2006 8:52:36 PM teletext: clear teletext cache
19/03/2006 8:52:36 PM Command:MediaPortal.TV.Recording.ViewTvCommand time:3125 msec
19/03/2006 8:52:36 PM Recorder: Card: Dvico FusionHDTV DVB-T idle
19/03/2006 8:52:36 PM Recorder: Card: DNTV Live! LP Tuner Card view tv channeleven
19/03/2006 8:52:37 PM PlaneScene: video WxH : 768x576
19/03/2006 8:52:37 PM PlaneScene: video AR : 768:576
19/03/2006 8:52:37 PM PlaneScene: screen WxH : 498x347
19/03/2006 8:52:37 PM PlaneScene: AR type : Normal
19/03/2006 8:52:37 PM PlaneScene: PixelRatio : 1
19/03/2006 8:52:37 PM PlaneScene: src : (0,0)-(768,576)
19/03/2006 8:52:37 PM PlaneScene: dst : (444,143)-(907,490)
19/03/2006 8:52:37 PM wait for pmt :-1
19/03/2006 8:52:43 PM wait for pmt :-1
19/03/2006 8:52:43 PM DVBGraph:Got PMT version:1
19/03/2006 8:52:43 PM DVBGraph: OnPMTIsChanged:database\pmt\pmt_Seven_4115_1283_1328_5.dat
19/03/2006 8:52:43 PM DVBGraphendPMT() set demux: video pid:301 audio pid:302 AC3 pid:0 audio1 pid:302 audio2 pid:0 audio3 pid:0 subtitle pid:FFFFFFFF teletext pid:304 pcr pid:301
19/03/2006 8:52:43 PM DVBDemuxereven audio:302 video:301 teletext:304 pmt:300 subtitle:0 program:1328
19/03/2006 8:52:43 PM DVBGraphetHardwarePidFiltering to:0,1,10,11,12,D3,D2,301,302,300,304,
19/03/2006 8:52:43 PM update dvbt channeleven
19/03/2006 8:52:43 PM DVBGraph: grab epg for Seven

 

[sonome]

Windows Version: XP (Home) SP2
CPU Type: P4 3.2ghz
Memory: 1gig DDR400
Motherboard: MSI PX8Neo-V
Motherboard Chipset: Via PX533
Motherboard Bios:
Video Card: ATI Radion 9550
Video Card Driver: catalyst 5.11
Sound Card: Vinyl AC'97
Sound Card AC3:
Sound Card Driver: 6.14.1.4100
1. TV Card: Kworld V-Stream Xpert (aka Kworld DVBT 100)
1. TV Card Type: DVB-T
1. TV Card Driver: 4.0.108.4
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
Video Codec: Intervideo
Audio Codec: Intervideo
Satelite/CableTV Provider:
HTPC Case:
Power Supply:
Remote: V-Stream remote (came with card)
TV:
TV - HTPC Connection:


Same problem here, only channel changes seem to be even slower for me (approx. 10-15 seconds) and I only have a very minor, barely noticable, hiccup afterwards (which I've had in previous versions of MP).

 

[amnw14545]

Also see this 0.2.0.0 rc2 cvs bug report

 

[infinite.loop]

I think this is a general bug.
it has also been reported with Skystar2 and Nova-S.
http://mantis.team-mediaportal.com/view.php?id=667

seems that it is related to the
wait for pmt :-1
in the log

 

[imported_KRA]

I think this is a general bug.
it has also been reported with Skystar2 and Nova-S.
http://mantis.team-mediaportal.com/view.php?id=667

seems that it is related to the
wait for pmt :-1
in the log

I also notice this in my log file, could this http://mediaportal.elite-squad.net/forum/showthread.php?t=472DVB-S problem be related?

 

[simulant_real]

Carried on from here: http://mediaportal.elite-squad.net/forum/showthread.php?t=438

 

[RoChess]

Was this one fixed yet? There are a few changelog updates regarding fixed on slow channel changes.

So if the people who reported problems can verify with the latest CVS, please let us know.

 

[Taipan]

Channel changes with the latest CVS (03-30-2006--01-04) are still very slow for me (much slower than they used to be about a month ago) - here's a section of my MediaPortal.log file, to illustrate what I am referring to:-

30/03/2006 12:53:38 PM Command: view tv channeleven
30/03/2006 12:53:38 PM Recorder: Use card: Dvico FusionHDTV DVB-T
30/03/2006 12:53:38 PM Commandtop all card except card:0
30/03/2006 12:53:38 PM Recorder: tv channel changedeven
30/03/2006 12:53:38 PM PlaneScene: video WxH : 1024x576
30/03/2006 12:53:38 PM PlaneScene: video AR : 1024:576
30/03/2006 12:53:38 PM PlaneScene: screen WxH : 640x360
30/03/2006 12:53:38 PM PlaneScene: AR type : Normal
30/03/2006 12:53:38 PM PlaneScene: PixelRatio : 1
30/03/2006 12:53:38 PM PlaneScene: src : (0,0)-(1024,576)
30/03/2006 12:53:38 PM PlaneScene: dst : (480,107)-(1120,467)
30/03/2006 12:53:38 PM teletext: clear teletext cache
30/03/2006 12:53:38 PM TVCapture: change channel to even
30/03/2006 12:53:38 PM DVBGraph: ShouldRebuildGraph(Seven) current ac3:True new channel ac3:False
30/03/2006 12:53:38 PM TvCaptureDevice:RebuildGraph() Card:1 chaneven
30/03/2006 12:53:38 PM DVBGraph: StopViewing()
30/03/2006 12:53:38 PM planescene: PresentSurface() frame:52 enabled:False allowed:True
30/03/2006 12:53:38 PM 7 vmr9: Dispose
30/03/2006 12:53:38 PM VMR9: not active
30/03/2006 12:53:38 PM PlaneScene: PresentImage() dispose surfaces
30/03/2006 12:53:38 PM PlaneScene: PresentImage() dispose surfaces
30/03/2006 12:53:38 PM TvCaptureDevice:RebuildGraph() recreate viewing graph
30/03/2006 12:53:38 PM DVBGraphtartViewing() Seven
30/03/2006 12:53:38 PM 7 vmr9:ctor()
30/03/2006 12:53:38 PM 7 vmr9:ctor() done:True
30/03/2006 12:53:38 PM 7 vmr9:addvmr9
30/03/2006 12:53:38 PM VMR9: now active
30/03/2006 12:53:38 PM 7 VMR9Helper:Vmr9 Added
30/03/2006 12:53:38 PM DVBGraph: tuning details: frequency:177500 kHz ONID:4115 TSID:1283 SID:1328 provider:unknown
30/03/2006 12:53:38 PM add filter:NVIDIA Video Decoder to graph
30/03/2006 12:53:38 PM added filter:NVIDIA Video Decoder to graph
30/03/2006 12:53:38 PM add filter:MPEG/AC3/DTS/LPCM Audio Decoder to graph
30/03/2006 12:53:38 PM added filter:MPEG/AC3/DTS/LPCM Audio Decoder to graph
30/03/2006 12:53:38 PM planescene: PresentImage()
30/03/2006 12:53:38 PM PlaneScene: PresentImage() dispose surfaces
30/03/2006 12:53:38 PM planescene: PresentImage()
30/03/2006 12:53:38 PM PlaneScene: PresentImage() dispose surfaces
30/03/2006 12:53:38 PM DVBGraph: channel Seven uses MP2 audio
30/03/2006 12:53:38 PM DVBGraphtartViewing(). : ac3=False
30/03/2006 12:53:39 PM DVBGraph:TuneChannel() tune to channel:1
30/03/2006 12:53:39 PM DVBGraph: tuning details: frequency:177500 kHz ONID:4115 TSID:1283 SID:1328 provider:unknown
30/03/2006 12:53:39 PM DVBGraphBDAubmitTuneRequest() frequency:177500 kHz Bandwidth:7 ONID:4115 TSID:1283, SID:1328
30/03/2006 12:53:40 PM DVBGraphetHardwarePidFiltering to:0,1,10,11,12,D3,D2,301,302,300,304,
30/03/2006 12:53:40 PM DVBGraphBDA: signal strength:0 signal quality:90 signal present:True locked:True
30/03/2006 12:53:40 PM DVBDemuxereven audio:302 video:301 teletext:304 pmt:300 subtitle:0 program:1328
30/03/2006 12:53:40 PM DVBGraph:TuneChannel done signal strength:0 signal quality:90 locked:True
30/03/2006 12:53:40 PM teletext: grab teletext for card: Dvico FusionHDTV DVB-T
30/03/2006 12:53:40 PM Recorder: tv channel changedeven
30/03/2006 12:53:40 PM teletext: clear teletext cache
30/03/2006 12:53:40 PM Command:MediaPortal.TV.Recording.ViewTvCommand time:2171.875 msec
30/03/2006 12:53:40 PM Recorder: Card: Dvico FusionHDTV DVB-T view tv channeleven
30/03/2006 12:53:40 PM Recorder: Card: DNTV Live! LP Tuner Card idle
30/03/2006 12:53:40 PM 7 VMR9Helper: playing->repaint
30/03/2006 12:53:40 PM wait for pmt :-1
30/03/2006 12:53:40 PM 1 VMR9Helper: repaint->playing 50
30/03/2006 12:53:41 PM PlaneScene: PresentImage() dispose surfaces
30/03/2006 12:53:41 PM PlaneScene: PresentImage() dispose surfaces
30/03/2006 12:53:41 PM PlaneScene: video WxH : 1024x576
30/03/2006 12:53:41 PM PlaneScene: video AR : 1024:576
30/03/2006 12:53:41 PM PlaneScene: screen WxH : 640x360
30/03/2006 12:53:41 PM PlaneScene: AR type : Normal
30/03/2006 12:53:41 PM PlaneScene: PixelRatio : 1
30/03/2006 12:53:41 PM PlaneScene: src : (0,0)-(1024,576)
30/03/2006 12:53:41 PM PlaneScene: dst : (480,107)-(1120,467)
30/03/2006 12:53:45 PM wait for pmt :-1
30/03/2006 12:53:45 PM DVBGraph:Got PMT version:3
30/03/2006 12:53:45 PM DVBGraph: OnPMTIsChanged:database\pmt\pmt_Seven_4115_1283_1328_5.dat
30/03/2006 12:53:45 PM DVBGraphendPMT() set demux: video pid:301 audio pid:302 AC3 pid:0 audio1 pid:302 audio2 pid:0 audio3 pid:0 subtitle pid:FFFFFFFF teletext pid:304 pcr pid:301
30/03/2006 12:53:45 PM DVBDemuxereven audio:302 video:301 teletext:304 pmt:300 subtitle:0 program:1328
30/03/2006 12:53:45 PM DVBGraphetHardwarePidFiltering to:0,1,10,11,12,D3,D2,301,302,300,304,
30/03/2006 12:53:45 PM update dvbt channeleven
30/03/2006 12:53:45 PM DVBGraph: grab epg for Seven
30/03/2006 12:53:46 PM 1 VMR9Helper: playing->repaint
30/03/2006 12:53:46 PM planescene: PresentSurface() frame:0 enabled:True allowed:False
30/03/2006 12:53:46 PM 1 VMR9Helper: repaint->playing 1

The first line is where I issue the command to change channels.

The last line (8 seconds later) is when the channel change has completed, and the sound and video have settled.

The biggest delay seems to be at the line I have highlighted in red - 4 seconds spent "wait for pmt :-1". This also seems to be the time when the "hiccup" in the sound and video occurs.

 

[RoChess]

check the PMT pid on some of your channels inside configurator.exe, are they all set to -1? Use TSReader Lite otherwise to see if that one can find a PMT pid value and then adjust it yourself for a few channels, zap between those and see if it fixes it.

The PMT PID is the highlighted part on this screenshot: http://rochess.net/mediaportal/Screencaptures/TSReader_1.jpg , be aware that the values inside TSReader are in HEX and that MP expects them in Decimal, usually the PMT pid is 1 below the Video pid tho, but make sure.

If it does, then Frodo can maybe fix the auto-tune part to fill in those values.

 

[Taipan]

All my DVB-T channels have the correct value for PMT (none of them are -1).

Also, I get a similar delay (10 to 12 seconds) when trying to change between DVB-T radio stations - this is the section of the MediaPortal.log file:-

30/03/2006 2:20:50 PM Recorder: Card: DNTV Live! LP Tuner Card idle
30/03/2006 2:20:50 PM wait for pmt :-1
30/03/2006 2:20:55 PM wait for pmt :-1
30/03/2006 2:21:00 PM wait for pmt :-1
30/03/2006 2:21:00 PM DVBGraph:Got PMT version:1

I would love to know what this "wait for pmt :-1" really means? As you can see here, 10 seconds is "lost" with these 3 "wait for pmt :-1" messages.

I used to get almost instantaneous TV channel and radio station changes, and I don't recall ever seeing this "wait for pmt :-1" before....