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+---- Thread: Linux Teletext doesn't work in live TV (/showthread.php?tid=377059)
Teletext doesn't work in live TV - Tnix - 2024-04-10
Hi all,
I'm running Kodi 20.2 "(20.2.0) Git:20240304-nogitfound" with NextPVR backend and an USB tuner in a Linux x64 machine. Live TV works great but teletext doesn't work nor closed captions (I don't know if this issue is related). The first time I tune a channel and access to teletext it shows nothing, only the TV. Next I exit to TV and entry again in teletext: it shows nothing again but this time I can see the lower 4 colour bar with quick access to pages.
I have do several things: change Kodi mask, change renderer, ... without success.
Next I paste the Kodi logs explained:
-- When I tune a live TV channel:
2024-04-10 18:45:42.846 T:32733 info <general>: VideoPlayer::OpenFile: pvr://channels/tv/Todos%20los%20canales/[email protected]_7196.pvr
2024-04-10 18:45:42.919 T:2109 info <general>: Deleting settings information for files pvr://channels/tv/Todos%20los%20canales/[email protected]_7193.pvr
2024-04-10 18:45:42.942 T:2083 warning <general>: OutputPicture - timeout waiting for buffer
2024-04-10 18:45:42.972 T:2074 info <general>: Creating InputStream
2024-04-10 18:45:42.972 T:2074 error <general>: AddOnLog: pvr.nextpvr: Unknown live streaming state 0 0 1
2024-04-10 18:45:42.972 T:2074 info <general>: AddOnLog: pvr.nextpvr: Calling Open(http://127.0.0.1:8866/live?channeloid=7196&client=XBMC-f1ff7d932431456888b0c57f7be1d096) on tsb!
2024-04-10 18:45:42.980 T:32733 info <general>: GL: Selecting YUV 2 RGB shader
2024-04-10 18:45:42.981 T:32733 info <general>: GL: Using GL_ARB_pixel_buffer_object
2024-04-10 18:45:42.981 T:32733 info <general>: Using GL_TEXTURE_2D
2024-04-10 18:45:45.664 T:2074 info <general>: Creating Demuxer
2024-04-10 18:45:45.688 T:2074 info <general>: Opening stream: 2 source: 256
2024-04-10 18:45:45.688 T:2074 warning <general>: OpenStream - Unsupported stream 2. Stream disabled.
2024-04-10 18:45:45.688 T:2074 info <general>: Closing stream player 2
2024-04-10 18:45:45.688 T:2074 info <general>: waiting for video thread to exit
2024-04-10 18:45:45.688 T:2083 info <general>: thread end: video_thread
2024-04-10 18:45:45.688 T:2074 info <general>: deleting video codec
2024-04-10 18:45:45.689 T:2074 info <general>: VAAPI::Close
2024-04-10 18:45:45.690 T:2084 info <general>: COutput::OnExit: Output Thread terminated
2024-04-10 18:45:45.690 T:2074 info <general>: VAAPI::Close - closing decoder context
2024-04-10 18:45:45.704 T:2074 info <general>: Opening stream: 3 source: 256
2024-04-10 18:45:45.704 T:2074 info <general>: Finding audio codec for: 86056
2024-04-10 18:45:45.704 T:2074 info <general>: CDVDAudioCodecFFmpeg::Open() Successful opened audio decoder eac3
2024-04-10 18:45:45.704 T:2074 info <general>: Opening stream: 6 source: 256
2024-04-10 18:45:45.704 T:2074 info <general>: Opening stream: 0 source: 256
2024-04-10 18:45:45.704 T:2074 info <general>: waiting for teletext data thread to exit
2024-04-10 18:45:45.704 T:2082 info <general>: thread end: data_thread
2024-04-10 18:45:45.705 T:2074 info <general>: Creating teletext data thread
2024-04-10 18:45:45.705 T:2118 info <general>: running thread: CDVDTeletextData
2024-04-10 18:45:45.705 T:2074 info <general>: CDVDDemuxFFmpeg::Read() stream change
2024-04-10 18:45:45.706 T:2074 info <general>: Opening stream: 2 source: 256
2024-04-10 18:45:45.706 T:2074 warning <general>: OpenStream - Unsupported stream 2. Stream disabled.
2024-04-10 18:45:45.706 T:2074 info <general>: Opening stream: 3 source: 256
2024-04-10 18:45:45.706 T:2074 info <general>: Opening stream: 6 source: 256
2024-04-10 18:45:45.706 T:2074 info <general>: Opening stream: 0 source: 256
2024-04-10 18:45:45.706 T:2074 info <general>: CDVDDemuxFFmpeg::Read() stream change
2024-04-10 18:45:45.706 T:2074 info <general>: Opening stream: 2 source: 256
2024-04-10 18:45:45.707 T:2074 info <general>: Creating video codec with codec id: 27
2024-04-10 18:45:45.707 T:2074 info <general>: CDVDVideoCodecFFmpeg::Open() Using codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
2024-04-10 18:45:45.707 T:2074 info <general>: Creating video thread
2024-04-10 18:45:45.707 T:2119 info <general>: running thread: video_thread
2024-04-10 18:45:45.707 T:2074 info <general>: Opening stream: 3 source: 256
2024-04-10 18:45:45.707 T:2074 info <general>: Finding audio codec for: 86056
2024-04-10 18:45:45.707 T:2074 info <general>: CDVDAudioCodecFFmpeg::Open() Successful opened audio decoder eac3
2024-04-10 18:45:45.707 T:2074 info <general>: Opening stream: 6 source: 256
2024-04-10 18:45:45.707 T:2074 info <general>: Opening stream: 0 source: 256
2024-04-10 18:45:45.708 T:2119 error <general>: libva error: /usr/lib/va/iHD_drv_video.so init failed
2024-04-10 18:45:45.709 T:2120 info <general>: COutput::OnStartup: Output Thread created
2024-04-10 18:45:45.709 T:2120 error <general>: Unable to load /usr/lib/kodi/system/libsse4-x86_64-linux.so, reason: /usr/lib/kodi/system/libsse4-x86_64-linux.so: cannot open shared object file: No such file or directory
2024-04-10 18:45:45.709 T:2120 error <general>: VAAPI::SupportsFilter failed loading sse4 lib
2024-04-10 18:45:46.300 T:2119 warning <general>: OutputPicture - timeout waiting for buffer
2024-04-10 18:45:48.293 T:2119 info <general>: Skipped 3 duplicate messages..
2024-04-10 18:45:48.293 T:2119 info <general>: CDVDVideoCodecFFmpeg::CDropControl: calculated diff time: 40000
-- When I access first time to teletext:
2024-04-10 18:48:08.730 T:32733 info <general>: Loading skin file: VideoOSD.xml, load type: KEEP_IN_MEMORY
2024-04-10 18:48:11.138 T:32733 info <general>: Teletext font /usr/share/kodi/media/Fonts/teletext.ttf loaded
-- When I access second time to teletext:
2024-04-10 18:48:40.815 T:32733 info <general>: Teletext font /usr/share/kodi/media/Fonts/teletext.ttf loaded
2024-04-10 18:48:49.811 T:32733 warning <general>: CGLContextEGL::SwapBuffers: last msc time greater than interval
Thanks in advance.
RE: Teletext doesn't work in live TV - emveepee - 2024-04-10
NextPVR just passes the complete stream to the Kodi video player so if there is an issue with teletext you probably need to open this as a developer issue on GitHub. There are several complaints about the telexext support in Kodi if you search the forum. You are using an obsolete version of Nexus and Omega is now released so your best bet is to upgrade to the current release before you post the full logs (not snippets) that are required.
If you provide link to a sample recording with teletext I can have a look make sure the issue isn't related to the bad video configuration your snippet indicates.
For North American enabling closed captioning is relatively hidden in Kodi but if you search the wiki you should find out how to enable it.
Martin
RE: Teletext doesn't work in live TV - Jönke - 2024-04-10
As a work a round use Tvheadend as backend ( tvh does som ”muxing” before sending to Kodi . Subtitle works on live tv and recordings👍
RE: Teletext doesn't work in live TV - emveepee - 2024-04-10
Bad advise but it is hard to avoid hearing from TVHeadend fanboys. Subtitles etc do work with NextPVR and Kodi and closed captioning would need to be enabled with TVHeadend too.
Teletext is quiet different
Martin
RE: Teletext doesn't work in live TV - Tnix - 2024-04-10
Thanks for your answers. I'll send you a record as soon as possible.
RE: Teletext doesn't work in live TV - emveepee - 2024-04-11
OK great. When you post it let me know what default Teletext page # you prefer.
Martin
RE: Teletext doesn't work in live TV - Tnix - 2024-04-15
Hi again,
a few days ago I recorded several minutes from a live TV program. Next I tried to play in several players and PCs but I noted that there's no teletext nor closed captions. I think that NextPVR is the "blame" but I cannot find any clue to say this ...
I'm trying to upload a piece of recordings to this post but I've tried to play in VLC: it plays fine but there's no teletext nor closed captions.
Regards.
RE: Teletext doesn't work in live TV - emveepee - 2024-04-15
As I posted NextPVR captures the entire transport stream as output from libdvb. I don't really want an attached "piece", I will need at least one minute of a broadcast that you feel should have teletext included. You should be able to able to use Google Drive OneDrive and provide a link or there are sites like filetransfer.io which allow large transfers. Just start a recording and cancel it after one or two minutes.
Martin
RE: Teletext doesn't work in live TV - Tnix - 2024-04-15
This is a sample recording:
https://drive.google.com/drive/folders/1MAIgegPmYXfPELRB2KTczJ8amePmXOqq?usp=sharingThis is the link from my Google Drive:
I hope it helps. Thanks.
RE: Teletext doesn't work in live TV - Tnix - 2024-04-15
Sorry, I pasted bad. Next the correct:
https://drive.google.com/drive/folders/1MAIgegPmYXfPELRB2KTczJ8amePmXOqq?usp=drive_link
RE: Teletext doesn't work in live TV - emveepee - 2024-04-15
Thanks, it's too short a sample for real testing, but I am not seeing any data for telextext page 202 (you never answered what page you want) or the 2 DVB subtitle tracks.
| 0x00CA Teletext (spa, qaa, Initial Teletext page, Te C 0 b/s |
| 0x019B Subtitles (spa, DVB subtitles, high definitio C 0 b/s |
| 0x019C Subtitles (qaa, DVB subtitles, high definitio C 0 b/s |
Are you confident that this show has data?
Martin
RE: Teletext doesn't work in live TV - Tnix - 2024-04-15
Yes, I recorded with Kodi from NextPVR recordings. Teletext is enabled in Kodi and as you said NPVR passes all the data stream. Am I missing something?
I'm recording at least 10 min and I'm uploading again.
Thanks again.
RE: Teletext doesn't work in live TV - Tnix - 2024-04-15
Again ... Althought I'm still watching nor teletext nor closed captions ... I don't know ... Is there any setting on NPVR I'm missing?
https://drive.google.com/drive/folders/1_17sWxGuKXyNY-DDA49Pat0iMGW50fPg?usp=sharing
RE: Teletext doesn't work in live TV - emveepee - 2024-04-15
Yes still no subtitle or teletext data in the stream just video and audio, this show has descriptive audio. Probably best open a post of the NextPVR forum with the NextPVR logs so sub the author of NextPVR can participate. Personaly I'd like to see a full mux capture just to see what is there but that kind of support is out of scope here on the Kodi forum and better on the NextPVR forum.
And no there is nothing to configure in NextPVR since it just passes of the data that the Linux library provides and there are no errors in the stream itself.
Martin
RE: Teletext doesn't work in live TV - Tnix - 2024-04-16
I'll try other ways to solve the issue.
Thank you very much for your help.
Regards.