Topic: DVB-T2 channels (Read 7686 times)

Sandy B Ridge · « **on:** September 22, 2011, 09:34:48 am »

Quote from: Yaobing on September 22, 2011, 08:55:04 am

Carrier Freq (2nd attempt): 704500
Scanning Freq: 704500

Network Name: Seven Network, Freq: 177500, Bandwidth: 7
  NID: 12840, TSID: 1284, ONID: 4115, # of services: 5
   Service 01:
   Service Name: 7 Digital, Service ID: 1344, Video PID: 1025, Audio PID: 1026, PMT PID: 1024, Teletext: 1028

Yaobing,

I glanced at the log (UK) a few days ago and thought I noticed something similar. I'll do a rescan log tonight and email you. I might have been mistaken though. I need to get my card working again first as it stopped working in MC since I installed Mediaportal. Grrrrr! Damn amateur software!

SBR

Sandy B Ridge · « **Reply #1 on:** September 22, 2011, 02:45:11 pm »

No,

please ignore the last post. The frequencies seem OK for the channels in the log, but I've sent it on to Yaobing anyway in case it's of any use (has some DVB-T2 channels scanned).

I apologise!

SBR

Yaobing · « **Reply #2 on:** September 22, 2011, 04:15:40 pm »

Thanks for the UK log.

Yes, the frequencies seem to be OK, except one group (but it is a totally different problem from that of Paul's).

At frequency 530000, the tuner locked to a station (transport stream ID = 16521) which seem to have four channels:

TSID: 16521, SID: 17540 (BBC, BBC One HD), PMT PID 6600, video PID 0, audio PID 0

TSID: 16521, SID: 17472 (BBC, BBC HD), PMT PID 100, video PID 0, audio PID 0

TSID: 16521, SID: 17609 (ITV, ITV1 HD), PMT PID 200, video PID 0, audio PID 0

TSID: 16521, SID: 17664 (CHANNEL FOUR, Channel 4 HD), PMT PID 300, video PID 0, audio PID 0

We could not get the frequency of this group. That is not that bad since we can always use the frequency we used for scanning. The real problem is we also failed to get the video program ID and audio program ID.

Is this group the DVB-T2 channels?

If you manually create a channel, using the above parameters, including video PID 0, and audio PID 0, will you be able to tune to it?

If you happen to know the video pid and audio pid, try manually setting those. Can you tune to it?

Sandy B Ridge · « **Reply #3 on:** September 22, 2011, 04:19:41 pm »

Quote from: Yaobing on September 22, 2011, 04:15:40 pm

Thanks for the log.

Yes, the frequencies seem to be OK, except one group (but it is a totally different problem from that of Paul's).

At frequency 530000, the tuner locked to a station (transport stream ID = 16521) which seem to have four channels:

TSID: 16521, SID: 17540 (BBC, BBC One HD), PMT PID 6600, video PID 0, audio PID 0

TSID: 16521, SID: 17472 (BBC, BBC HD), PMT PID 100, video PID 0, audio PID 0

TSID: 16521, SID: 17609 (ITV, ITV1 HD), PMT PID 200, video PID 0, audio PID 0

TSID: 16521, SID: 17664 (CHANNEL FOUR, Channel 4 HD), PMT PID 300, video PID 0, audio PID 0

We could not get the frequency of this group. That is not that bad since we can always use the frequency we used for scanning. The real problem is we also failed to get the video program ID and audio program ID.

Is this group the DVB-T2 channels?

Yes, those are the DVB-T2 ones.

SBR

Sandy B Ridge · « **Reply #4 on:** September 22, 2011, 04:39:20 pm »

Ah Ok,

I'll have a search for the audio pid and video pid and give it a go sometime over the weekend. If I draw a blank online I'll try installing something else that may give me them. I didn't notice the PIDs in the channel info in Mediaportal, so may have to try DVB viewer or something like that.

Cheers,

SBR

Sandy B Ridge · « **Reply #5 on:** September 23, 2011, 05:51:30 pm »

OK,

Not a complete fail for the DVB-T2 channels since MC doesn't completely bomb out when tuning the HD channel. I just get a blank screen. Looking at the filter graph it seems to assume MPEG 2, but the TS contains a h264 video stream. The audio is a bit weird too, it's a flavour of AAC. Now, looking at the MC tuning log, I wonder whether that is what the PMT is telling you:

Code: [Select]

0179464: 5068: TV: CMPEG2SectionsAndTablesParser::ReadSection: Start
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ReadSection: Number of sections found for (PID 100, TID 2) is 1
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParseSection: Start
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParseSection: PID 100 TID 2 TIDExt 17472, 0/0 (version 0)
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParseSection: PMT 100 for service 17472
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: Start
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: OTHER: PID 101 TYPE 27
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: OTHER: PID 102 TYPE 17
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: OTHER: PID 106 TYPE 17
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::FindDescriptor: Start
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::FindDescriptor: Finish (0 ms)
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::FindDescriptor: Start
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::FindDescriptor: Finish (0 ms)
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: SUBTITLING: PID 105
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: OTHER: PID 150 TYPE 5
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: OTHER: PID 110 TYPE 11
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: OTHER: PID 111 TYPE 11
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: OTHER: PID 130 TYPE 11
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: TSID: 16521, SID: 17472 (BBC, BBC HD), PMT PID 100, video PID 0, audio PID 0 ()
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParsePMT: Finish (0 ms)
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ParseSection: Finish (0 ms)
0179495: 5068: TV: CMPEG2SectionsAndTablesParser::ReadSection: Finish (31 ms)

The PID 101 is the video PID and I assume that 'Type 27' refers to the fact that it is h264.
The PID 102 and 106 are audio PIDs and I assume the 'Type 17' refers to AAC. IIRC it is a HE-AAC.
I'm probably wrong, just complete guesswork!

Is this of any help to you? Anyway I have sent you a log of the attempted play of the live TV for this channel.

I'm working on trying to record an actual TS stream sample so I can send it you. Is this something you would find useful?

SBR

PS Sorry pauly, seem to have hijacked your thread! Maybe Jim will be kind enough to split it?!

Yaobing · « **Reply #6 on:** September 23, 2011, 09:16:41 pm »

Quote from: Sandy B Ridge on September 23, 2011, 05:51:30 pm

The PID 101 is the video PID and I assume that 'Type 27' refers to the fact that it is h264.
The PID 102 and 106 are audio PIDs and I assume the 'Type 17' refers to AAC. IIRC it is a HE-AAC.
I'm probably wrong, just complete guesswork!

Seems to be a good logical guesswork. That is the kind of info I have been trying to find (what types 17 and 27 correspond to). I hope to have a definitive answer soon. Getting H264 video to show is another issue to be solve.

Sandy B Ridge · « **Reply #7 on:** September 24, 2011, 02:19:42 am »

Quote from: Yaobing on September 23, 2011, 09:16:41 pm

Seems to be a good logical guesswork. That is the kind of info I have been trying to find (what types 17 and 27 correspond to). I hope to have a definitive answer soon. Getting H264 video to show is another issue to be solve.

http://www.dvb.org/technology/standards/a038_DVB-SI_dEN300468v1.12.1.pdf

Not sure if this document is helpful? Table 26 in particular, but I can't see anything for content type 17 and 27.

SBR

Sandy B Ridge · « **Reply #8 on:** September 24, 2011, 02:42:45 pm »

Yaobing,

I've made an astounding discovery about DVB-T2 channels. I can record and playback the TS! From within MC16!

So MC16 can tune and record the TS, and once recording is finished, it will play back the file.

I guess there's not much point in me sending you the TS file since it works flawlessly in MC like any other TS file.

SBR

Yaobing · « **Reply #9 on:** September 26, 2011, 08:41:31 am »

Quote from: Sandy B Ridge on September 24, 2011, 02:19:42 am

http://www.dvb.org/technology/standards/a038_DVB-SI_dEN300468v1.12.1.pdf

Not sure if this document is helpful? Table 26 in particular, but I can't see anything for content type 17 and 27.

SBR

Thanks. That is the document I am trying to sift through to get what I need.

Quote from: Sandy B Ridge on September 24, 2011, 02:42:45 pm

Yaobing,

I've made an astounding discovery about DVB-T2 channels. I can record and playback the TS! From within MC16!

So MC16 can tune and record the TS, and once recording is finished, it will play back the file.

I guess there's not much point in me sending you the TS file since it works flawlessly in MC like any other TS file.

SBR

That is good news. That says tuning actually works. The problem is that when the video/audio format changes, the downstream filters are not being properly informed of the change.

Have you noticed any differences in filters used in playing a recorded HD channel (which works) and playing a live HD channel (which gives you a black screen)?

Sandy B Ridge · « **Reply #10 on:** September 26, 2011, 09:13:04 am »

Quote from: Yaobing on September 26, 2011, 08:41:31 am

Thanks. That is the document I am trying to sift through to get what I need.

it's a bit heavy going isn't it!

Quote

That is good news. That says tuning actually works.

yes it's great - I did create a manual channel and put in the Audio/video PIDs though, but that should be quickly fixable with a tweak in the parser to add the 2 unknown types.

Quote

The problem is that when the video/audio format changes, the downstream filters are not being properly informed of the change.

Have you noticed any differences in filters used in playing a recorded HD channel (which works) and playing a live HD channel (which gives you a black screen)?

Yes, the filter graph for the TS playback (once recording is stopped) is much simpler = basically LAV and MadVR. The filter graph for the live TV is the same (I think) whether it is HD or SD, still with the MPEG2 filters. I can post them when I get home if you like.

I can see that changes in the broadcast format on the fly can be a problem, although *mostly* the channels will stick to the same format, even for commercials. I'm aware of only the BBC channel that reportedly sometimes changes from 1080i to 1080p (although that may just be for DVB-S2, not sure). For live TV it wouldn't be a huge issue as either a stop-start or a hotkey to rebuild the filter graph would be ok (not ideal, but ok). However it would be really annoying for a recording to fail because of it (although I guess the TS is just raw data and you could just stop-start with a placeholder in place to rebuild, so not the end of the world). The only problem with the TS is the sheer size of the data. The clip I recorded is under a minute and was 250Mb. I would soon run out of disc space at 20-30Gb/hr!

SBR

Sandy B Ridge · « **Reply #11 on:** September 26, 2011, 01:53:45 pm »

Recorded TS playback graph:

Code: [Select]

Filter Graph Info:

    Filter 'JRiver Audio Renderer'
        CLSID: {A4002F8E-510F-442C-8AD3-F9C7B23FB394}
        Host: 
        Input Pin 'In'
            Connected to pin 'Output' of filter 'LAV Audio Decoder (auto-configured)'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_IEEE_FLOAT, Format type FORMAT_WaveFormatEx

    Filter 'JRiver Subtitle Renderer'
        CLSID: {F74E834C-9C98-43ED-89B1-19A9DF82E774}
        Host: 
        Input Pin 'In'
            Connected to pin 'Subtitle' of filter 'LAV Source Splitter'
            Major type MEDIATYPE_Text  Sub type TIME_FORMAT_NONE, Format type TIME_FORMAT_NONE

    Filter 'madVR'
        CLSID: {E1A8B82A-32CE-4B0D-BE0D-AA68C772E423}
        Host: C:\Users\Lounge\AppData\Roaming\J River\Media Center 16\Plugins\madvr\madvr.ax
        Input Pin 'Input'
            Connected to pin 'XForm Out' of filter 'LAV CUVID'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_NV12, Format type FORMAT_VideoInfo2

    Filter 'LAV Audio Decoder (auto-configured)'
        CLSID: {E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}
        Host: C:\Users\Lounge\AppData\Roaming\J River\Media Center 16\Plugins\lav\LAVAudio.ax
        Input Pin 'Input'
            Connected to pin 'Output' of filter 'JRiver Audio Monitor'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {000001FF-0000-0010-8000-00AA00389B71}, Format type FORMAT_WaveFormatEx
        Output Pin 'Output'
            Connected to pin 'In' of filter 'JRiver Audio Renderer'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_IEEE_FLOAT, Format type FORMAT_WaveFormatEx

    Filter 'LAV CUVID'
        CLSID: {62D767FE-4F1B-478B-B350-8ACE9E4DB00E}
        Host: C:\Users\Lounge\AppData\Roaming\J River\Media Center 16\Plugins\lav_cuvid\LAVCUVID.ax
        Input Pin 'XForm In'
            Connected to pin 'Output' of filter 'JRiver Video Monitor'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'XForm Out'
            Connected to pin 'Input' of filter 'madVR'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_NV12, Format type FORMAT_VideoInfo2

    Filter 'JRiver Audio Monitor'
        CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
        Host: 
        Input Pin 'Input'
            Connected to pin 'Audio' of filter 'LAV Source Splitter'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {000001FF-0000-0010-8000-00AA00389B71}, Format type FORMAT_WaveFormatEx
        Output Pin 'Output'
            Connected to pin 'Input' of filter 'LAV Audio Decoder (auto-configured)'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {000001FF-0000-0010-8000-00AA00389B71}, Format type FORMAT_WaveFormatEx

    Filter 'JRiver Video Monitor'
        CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
        Host: 
        Input Pin 'Input'
            Connected to pin 'Video' of filter 'LAV Source Splitter'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Output'
            Connected to pin 'XForm In' of filter 'LAV CUVID'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO

    Filter 'LAV Source Splitter'
        CLSID: {B98D13E7-55DB-4385-A33D-09FD1BA26338}
        Host: C:\Users\Lounge\AppData\Roaming\J River\Media Center 16\Plugins\lav\LAVSplitter.ax
        Output Pin 'Video'
            Connected to pin 'Input' of filter 'JRiver Video Monitor'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Audio'
            Connected to pin 'Input' of filter 'JRiver Audio Monitor'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {000001FF-0000-0010-8000-00AA00389B71}, Format type FORMAT_WaveFormatEx
        Output Pin 'Subtitle'
            Connected to pin 'In' of filter 'JRiver Subtitle Renderer'
            Major type MEDIATYPE_Text  Sub type TIME_FORMAT_NONE, Format type TIME_FORMAT_NONE

Sandy B Ridge · « **Reply #12 on:** September 26, 2011, 01:54:19 pm »

Live TV:

Code: [Select]

Filter Graph Info (Time-shifting writer graph):

    Filter 'MJTSWriterFilter'
        CLSID: {CBE332C2-ED6F-482D-8497-AB51CA0419B7}
        Host: c:\program files (x86)\j river\media center 16\tv\mjtsfilewriter.ax
        Input Pin 'Input'
            Connected to pin '007' of filter 'MPEG-2 Demultiplexer'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_MPEG2_AUDIO, Format type FORMAT_WaveFormatEx
        Input Pin 'Input'
            Connected to pin '003' of filter 'MPEG-2 Demultiplexer'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_MPEG2_VIDEO, Format type FORMAT_MPEG2_VIDEO

    Filter 'MPEG-2 Sections and Tables'
        CLSID: {C666E115-BB62-4027-A113-82D643FE2D99}
        Host: c:\windows\syswow64\mpeg2data.ax
        Input Pin 'In'
            Connected to pin '002' of filter 'MPEG-2 Demultiplexer'
            Major type MEDIATYPE_MPEG2_SECTIONS  Sub type MEDIASUBTYPE_MPEG2DATA, Format type FORMAT_None

    Filter 'BDA MPEG2 Transport Information Filter'
        CLSID: {FC772AB0-0C7F-11D3-8FF2-00A0C9224CF4}
        Host: c:\windows\syswow64\psisrndr.ax
        Input Pin 'IB Input'
            Connected to pin '001' of filter 'MPEG-2 Demultiplexer'
            Major type MEDIATYPE_MPEG2_SECTIONS  Sub type MEDIASUBTYPE_DVB_SI, Format type FORMAT_None
        Input Pin 'OOB Input'
        Output Pin 'iTV Out'
        Output Pin 'SBE OUT'

    Filter 'MPEG-2 Demultiplexer'
        CLSID: {AFB6C280-2C41-11D3-8A60-0000F81E0E4A}
        Host: c:\windows\syswow64\mpg2splt.ax
        Input Pin 'MPEG-2 Stream'
            Connected to pin 'MPEG2 Transport' of filter '7231 BDA Digital Capture DVBT'
            Major type MEDIATYPE_Stream  Sub type Unknown GUID Name: {F4AEB342-0329-4FDD-A8FD-4AFF4926C978}, Format type FORMAT_None
        Output Pin '001'
            Connected to pin 'IB Input' of filter 'BDA MPEG2 Transport Information Filter'
            Major type MEDIATYPE_MPEG2_SECTIONS  Sub type MEDIASUBTYPE_DVB_SI, Format type FORMAT_None
        Output Pin '002'
            Connected to pin 'In' of filter 'MPEG-2 Sections and Tables'
            Major type MEDIATYPE_MPEG2_SECTIONS  Sub type MEDIASUBTYPE_MPEG2DATA, Format type FORMAT_None
        Output Pin '003'
            Connected to pin 'Input' of filter 'MJTSWriterFilter'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_MPEG2_VIDEO, Format type FORMAT_MPEG2_VIDEO
        Output Pin '007'
            Connected to pin 'Input' of filter 'MJTSWriterFilter'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_MPEG2_AUDIO, Format type FORMAT_WaveFormatEx

    Filter '7231 BDA Digital Capture DVBT'
        CLSID: {17CCA71B-ECD7-11D0-B908-00A0C9223196}
        Host: c:\windows\syswow64\ksproxy.ax
        Input Pin 'MPEG2 Transport'
            Connected to pin 'MPEG2 Transport' of filter '7231 BDA DVBT Tuner'
            Major type MEDIATYPE_Stream  Sub type MEDIASUBTYPE_MPEG2_TRANSPORT, Format type Unknown GUID Name: {E06D8023-DB46-11CF-B4D1-00805F6CBBEA}
        Output Pin 'MPEG2 Transport'
            Connected to pin 'MPEG-2 Stream' of filter 'MPEG-2 Demultiplexer'
            Major type MEDIATYPE_Stream  Sub type Unknown GUID Name: {F4AEB342-0329-4FDD-A8FD-4AFF4926C978}, Format type FORMAT_None

    Filter '7231 BDA DVBT Tuner'
        CLSID: {17CCA71B-ECD7-11D0-B908-00A0C9223196}
        Host: c:\windows\syswow64\ksproxy.ax
        Input Pin 'Input0'
            Connected to pin 'Antenna Out' of filter 'Network Provider'
            Major type Unknown GUID Name: {71985F41-1CA1-11D3-9CC8-00C04F7971E0}  Sub type MEDIASUBTYPE_None, Format type FORMAT_None
        Output Pin 'MPEG2 Transport'
            Connected to pin 'MPEG2 Transport' of filter '7231 BDA Digital Capture DVBT'
            Major type MEDIATYPE_Stream  Sub type MEDIASUBTYPE_MPEG2_TRANSPORT, Format type Unknown GUID Name: {E06D8023-DB46-11CF-B4D1-00805F6CBBEA}

    Filter 'Network Provider'
        CLSID: {216C62DF-6D7F-4E9A-8571-05F14EDB766A}
        Host: c:\windows\syswow64\msdvbnp.ax
        Output Pin 'Antenna Out'
            Connected to pin 'Input0' of filter '7231 BDA DVBT Tuner'
            Major type Unknown GUID Name: {71985F41-1CA1-11D3-9CC8-00C04F7971E0}  Sub type MEDIASUBTYPE_None, Format type FORMAT_None
_________________________________________________________________________

Filter Graph Info (Time-shifting player graph):

    Filter 'JRiver Audio Renderer'
        CLSID: {A4002F8E-510F-442C-8AD3-F9C7B23FB394}
        Host: 
        Input Pin 'In'
            Connected to pin 'Output' of filter 'LAV Audio Decoder (auto-configured)'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_IEEE_FLOAT, Format type FORMAT_WaveFormatEx

    Filter 'madVR'
        CLSID: {E1A8B82A-32CE-4B0D-BE0D-AA68C772E423}
        Host: C:\Users\Lounge\AppData\Roaming\J River\Media Center 16\Plugins\madvr\madvr.ax
        Input Pin 'Input'
            Connected to pin 'XForm Out' of filter 'LAV CUVID'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_NV12, Format type FORMAT_VideoInfo2

    Filter 'LAV Audio Decoder (auto-configured)'
        CLSID: {E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}
        Host: C:\Users\Lounge\AppData\Roaming\J River\Media Center 16\Plugins\lav\LAVAudio.ax
        Input Pin 'Input'
            Connected to pin 'Output' of filter 'JRiver Audio Monitor'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_MPEG2_AUDIO, Format type FORMAT_WaveFormatEx
        Output Pin 'Output'
            Connected to pin 'In' of filter 'JRiver Audio Renderer'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_IEEE_FLOAT, Format type FORMAT_WaveFormatEx

    Filter 'LAV CUVID'
        CLSID: {62D767FE-4F1B-478B-B350-8ACE9E4DB00E}
        Host: C:\Users\Lounge\AppData\Roaming\J River\Media Center 16\Plugins\lav_cuvid\LAVCUVID.ax
        Input Pin 'XForm In'
            Connected to pin 'Output' of filter 'JRiver Video Monitor'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_MPEG2_VIDEO, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'XForm Out'
            Connected to pin 'Input' of filter 'madVR'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_NV12, Format type FORMAT_VideoInfo2

    Filter 'JRiver Audio Monitor'
        CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
        Host: 
        Input Pin 'Input'
            Connected to pin 'Audio Output' of filter 'JRiver TS Reader Filter'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_MPEG2_AUDIO, Format type FORMAT_WaveFormatEx
        Output Pin 'Output'
            Connected to pin 'Input' of filter 'LAV Audio Decoder (auto-configured)'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_MPEG2_AUDIO, Format type FORMAT_WaveFormatEx

    Filter 'JRiver Video Monitor'
        CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
        Host: 
        Input Pin 'Input'
            Connected to pin 'Video Output' of filter 'JRiver TS Reader Filter'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_MPEG2_VIDEO, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Output'
            Connected to pin 'XForm In' of filter 'LAV CUVID'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_MPEG2_VIDEO, Format type FORMAT_MPEG2_VIDEO

    Filter 'JRiver TS Reader Filter'
        CLSID: {8303B00A-D9E3-4BD7-A79A-AD7077F54123}
        Host: c:\program files (x86)\j river\media center 16\tv\mjtsfilereader.ax
        Output Pin 'Audio Output'
            Connected to pin 'Input' of filter 'JRiver Audio Monitor'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_MPEG2_AUDIO, Format type FORMAT_WaveFormatEx
        Output Pin 'Video Output'
            Connected to pin 'Input' of filter 'JRiver Video Monitor'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_MPEG2_VIDEO, Format type FORMAT_MPEG2_VIDEO

Useful?

Cheers,

SBR

Yaobing · « **Reply #13 on:** September 27, 2011, 11:29:46 am »

Quote from: Sandy B Ridge on September 26, 2011, 01:54:19 pm

Useful?

Yes. Thanks.

Your recording was done in ts format instead of jtv format. That explains why recordings played fine but live playback did not.

Sandy B Ridge · « **Reply #14 on:** September 27, 2011, 12:58:55 pm »

Quote from: Yaobing on September 27, 2011, 11:29:46 am

Yes. Thanks.

Your recording was done in ts format instead of jtv format. That explains why recordings played fine but live playback did not.

Cool, thanks.

I wanted to capture a TS stream to test whether MC could tune and at least interact with the DVB-T2 driver. Jtv format recording doesn't work (but I guess you knew that anyway!). It records something, but reports the wrong pixel size in the tags, playback of the jtv is just black screen again, but again, I guess, predictable.

Is there a possibility of using the 'standard' MC playback engine using the Red October filters to make this work? Or at least put in a h264 capable filter in the Special TV filter graph? How possible is this to get it working?

Cheers,

SBR

BTW no problems so far with 16.178 with channel scan or change in filter.

Yaobing · « **Reply #15 on:** September 27, 2011, 03:30:46 pm »

177 and 178 contain some changes in channel scanning, but not the DVB-T2 stuff. That will have to come later. I need to figure out how to play the H264 video and AAC audio in jtv files.

Sandy B Ridge · « **Reply #16 on:** September 27, 2011, 03:45:05 pm »

Cool, let me know when you've got a test build?

Cheers,

SBR

Sandy B Ridge · « **Reply #17 on:** September 29, 2011, 01:45:59 pm »

Quote from: Yaobing on September 26, 2011, 08:41:31 am

The problem is that when the video/audio format changes, the downstream filters are not being properly informed of the change.

Note this subthread on doom9:

http://forum.doom9.org/showthread.php?p=1529281#post1529281

Seems LAV Video copes smoothly between interlaced and progressive dynamic changes in the stream.

In fact LAV Video is becoming quite juicy at the moment! Plans for yadif, intel DXVA etc integration. Nev is on a roll!!!

SBR

Sandy B Ridge · « **Reply #18 on:** October 23, 2011, 04:11:40 pm »

Update on 17.0.20

Yesterday: channel scan didn't pick up the HD channels, today: it does!
I was having some trouble with the channel scanning though yesterday, so that may be due to that, however yesterday it did pick up all the SD channels. Maybe it was because I checked the 'more thorough but slower' option yesterday, not sure. But now comes up with 'Channel name' AAC.

I initially thought that playback of the channels didn't work, just got a black screen. However going to 'TV options -> Cancel time shifting' gets a picture (great MadVR!), but no audio. Microsoft DTV-DVD Audio decoder is the directshow filter in the graph, maybe this can't do AAC-HE (HE-AAC??)? (I also note that this is the audio decoder for the other channels in non-time shifting mode too whereas it is LAV for the time shifting mode.) Is this intentional?

Glad to see this coming along!

SBR

Yaobing · « **Reply #19 on:** October 23, 2011, 08:11:59 pm »

Thanks for reporting back. I am glad channel scanning is working.

Quote from: Sandy B Ridge on October 23, 2011, 04:11:40 pm

Update on 17.0.20

I initially thought that playback of the channels didn't work, just got a black screen. However going to 'TV options -> Cancel time shifting' gets a picture (great MadVR!), but no audio. Microsoft DTV-DVD Audio decoder is the directshow filter in the graph, maybe this can't do AAC-HE (HE-AAC??)?

Microsoft DTV-DVD Audio decoder should be able to decode AAC. The problem could be that we are not sending media type info to it properly, or it does not handle dynamic change propertly.

Quote

(I also note that this is the audio decoder for the other channels in non-time shifting mode too whereas it is LAV for the time shifting mode.) Is this intentional?

No, this is not intentional. Non-time-shifting uses older code which we will try to refine.

What we are more interested in is to get time-shifting to work, then there will not be need to cancel time-shifting.

What if you specifically select LAV audio decoder and LAV video decoder for TV? Do this by first choosing Red October with additional filters mode, then picking the filters for "JRiver TV (jtv)" file type. Will you get video and audio?

Sandy B Ridge · « **Reply #20 on:** October 24, 2011, 01:14:39 am »

Thanks.

I'll be a little busy for a few days but I'll give this a go when I next can.

Thanks again!

SBR

Sandy B Ridge · « **Reply #21 on:** October 24, 2011, 02:15:22 pm »

Quote from: Yaobing on October 23, 2011, 08:11:59 pm

What if you specifically select LAV audio decoder and LAV video decoder for TV? Do this by first choosing Red October with additional filters mode, then picking the filters for "JRiver TV (jtv)" file type. Will you get video and audio?

No, unfortunately not. LAV Audio (0.37) doesn't work either. The LAV Channel Level bars don't show anything going up and down.

Also had a problem with audio in recorded SD too (jtv format). Specifically putting in ffdshow audio decoder in RO plus additional sorted that one.

SBR

Yaobing · « **Reply #22 on:** October 25, 2011, 08:07:06 am »

Quote from: Sandy B Ridge on October 24, 2011, 02:15:22 pm

No, unfortunately not. LAV Audio (0.37) doesn't work either. The LAV Channel Level bars don't show anything going up and down.

More work ahead of me.

Quote

Also had a problem with audio in recorded SD too (jtv format). Specifically putting in ffdshow audio decoder in RO plus additional sorted that one.

What format is the audio in?

Sandy B Ridge · « **Reply #23 on:** October 25, 2011, 09:25:50 am »

Quote from: Yaobing on October 25, 2011, 08:07:06 am

What format is the audio in?

that one was a standard DVB-T one from an SD channel. I think it is mpeg2 for these for both audio & video.

If I record a couple of minutes of both DVB-T and DVB-T2 and email them to you, would that be helpful? Would you like jtv or ts (or both) if you want them?

SBR

Yaobing · « **Reply #24 on:** October 25, 2011, 10:17:13 am »

Quote from: Sandy B Ridge on October 25, 2011, 09:25:50 am

If I record a couple of minutes of both DVB-T and DVB-T2 and email them to you, would that be helpful? Would you like jtv or ts (or both) if you want them?

Yes, but not as long as a minute. 10 - 20 seconds would be more appropriate as the files can be very large. Both jtv (put the entire folder in a zip file) and ts.

Sandy B Ridge · « **Reply #25 on:** October 25, 2011, 05:13:36 pm »

Sorry, didn't get a chance to email it tonight. I updated to 17.0.22 though and now the DVB-T2 channels don't show any audio or video.

By the time I'd fiddled a bit with the settings I had to leave it.

It may be a couple of days before I can get a chance again. Sorry.

SBR

Sandy B Ridge · « **Reply #26 on:** November 03, 2011, 02:49:55 pm »

Noted some changes to jtv in 17.0.27.

No changes in DVB-T2 playback or recording though.

I'll be patient!

Any files/logs to help Yaobing?

SBR

Yaobing · « **Reply #27 on:** November 03, 2011, 05:09:30 pm »

Quote from: Sandy B Ridge on November 03, 2011, 02:49:55 pm

Noted some changes to jtv in 17.0.27.

No changes in DVB-T2 playback or recording though.

I'll be patient!

Any files/logs to help Yaobing?

SBR

Thanks for your patience.

I will probably need to do something on video side. The recent changes are mostly on audio side.

Sandy B Ridge · « **Reply #28 on:** November 03, 2011, 05:31:55 pm »

Just to summarise the current experience:

DVB-T2 (HD channels in the UK currently) are tuned OK by MC17 and appear in the channel list with 'AAC' appended.

On playback (with time shifting on) I get a blank screen (no video, no audio).
Right click and 'TV options -> Cancel time shifting' gives a picture, but no audio (using LAV Video and LAV audio). Looking at the incoming/outgoing formats in LAV Audio seems to give a random selection, sometimes it is ac3, sometimes mpeg2, sometimes 48, more often 44.1. Output says bitstream sometimes and sometimes PCM (not changing any MC settings BTW). IIRC 44.1 bitrate is not part of the spec. Maybe there's some pin connection problem/randomness.

Recordings in ts seem to work ok (and playback ok in the main MC engine with LAV again). Jtv recordings don't work at all well - no audio and lots of stutter and macro blocking and frequent fails. Sometimes it plays at superspeed and then stops.

SBR

Sandy B Ridge · « **Reply #29 on:** November 08, 2011, 04:22:31 pm »

Just tested 17.0.31:

Still the same, blank screen when playing a hd channel in time shift mode. Only video in nontimeshift mode.

Also the madVR in the non timeshifting mode is different (green osd text) must be an old version.

But hang on..... I'm also testing in RO not ROHQ, so why is it madVR?

Puzzled...

Logs sent.

SBR

Sandy B Ridge · « **Reply #30 on:** November 08, 2011, 04:52:21 pm »

In nontimeshift mode LAV Audio reports AAC as the codec (no audio output), but in a recorded ts stream LAV Audio reports AAC-latm (audio is OK). Would this make a difference?

Just a thought... Is time shift mode not working because the process of chopping and saving the jtv chunks and then reloading them in the player too slow because of the high bitrate? Would it work if I had a dedicated SSD for TV? I assume hd works in ATSC and should be of a similar bitrate?

SBR

Yaobing · « **Reply #31 on:** November 08, 2011, 06:14:19 pm »

Bitrate probably should not be the cause.

Quote from: Sandy B Ridge on November 08, 2011, 04:22:31 pm

But hang on..... I'm also testing in RO not ROHQ, so why is it madVR?

Non-time-shifting does not obey Red October rules. That could explain it. Maybe you had selected madVR for jtv file when you played with options of RO (HQ) with additional filters?

Sandy B Ridge · « **Reply #32 on:** November 08, 2011, 06:20:14 pm »

Quote from: Yaobing on November 08, 2011, 06:14:19 pm

Non-time-shifting does not obey Red October rules. That could explain it. Maybe you had selected madVR for jtv file when you played with options of RO (HQ) with additional filters?

I figured it out. I have madVR set as default video renderer. I have 'Automatic' set for jtv files in RO (HQ) with additional filters. Changing the default renderer to EVR gets EVR as the renderer in TV.

Time shifting seems to have the same behaviour too by using the 'default video renderer' rather than RO vs ROHQ.

SBR

Sandy B Ridge · « **Reply #33 on:** November 10, 2011, 07:05:07 am »

Quote from: Sandy B Ridge on November 08, 2011, 04:52:21 pm

In nontimeshift mode LAV Audio reports AAC as the codec (no audio output), but in a recorded ts stream LAV Audio reports AAC-latm (audio is OK). Would this make a difference?

From a quick trawl on other DVB forums it may be that the demultiplexer is reporting the wrong media type (ie AAC rather than the packed HE AAC or LATM) leading LAV Audio to fail to unpack & decode it. It probably works in the main MC engine (playing back a recording) because the splitting is done by LAV splitter. Not sure?

Is it possible to patch the mediatype detected by the multiplexer for the live stream to flag it as a packed stream to LAV Audio? It may be a temporary solution?

The number of channels in the stream can be variable too, detection of this may be tricky and lead to loss of audio on the fly.

SBR

Yaobing · « **Reply #34 on:** November 10, 2011, 08:41:26 am »

Thanks SBR.

I think it is either video media type or audio media type specifications. I am trying different things.

Yaobing · « **Reply #35 on:** November 12, 2011, 08:31:33 am »

Quote from: Sandy B Ridge on November 10, 2011, 07:05:07 am

From a quick trawl on other DVB forums it may be that the demultiplexer is reporting the wrong media type (ie AAC rather than the packed HE AAC or LATM) leading LAV Audio to fail to unpack & decode it. It probably works in the main MC engine (playing back a recording) because the splitting is done by LAV splitter. Not sure?

Is it possible to patch the mediatype detected by the multiplexer for the live stream to flag it as a packed stream to LAV Audio? It may be a temporary solution?

The number of channels in the stream can be variable too, detection of this may be tricky and lead to loss of audio on the fly.

SBR

Thank you for the great clue. You are right on target.

I changed audio media type to LATM AAC. Now I can play the sample jtv recordings that you provided.

I would have emailed you some updated dlls. Unfortunately they conflict with other components in build 31. So you will need to wait until a new build is released.

JimH · « **Reply #36 on:** November 12, 2011, 08:42:31 am »

Sandy,
You have mail.

Jim

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