Linux Stuttering tv<->commercial break - Printable Version +- Kodi Community Forum (https://forum.kodi.tv) +-- Forum: Development (https://forum.kodi.tv/forumdisplay.php?fid=32) +--- Forum: Add-ons (https://forum.kodi.tv/forumdisplay.php?fid=26) +---- Forum: PVR (https://forum.kodi.tv/forumdisplay.php?fid=136) +---- Thread: Linux Stuttering tv<->commercial break (/showthread.php?tid=132264) |
Stuttering tv<->commercial break - LastCoder - 2012-05-24 Hi folks, I discovered that very often the switch from a regular program to a commercial break and vice versa is accompanied by a visible stuttering of the live tv picture. It doesn't depend on the channel, but on some channels it's more (for example HD channels) or less marked. Perhaps it's a country-specific (germany) problem, or a tv server [TVHeadend] specific problem... But maybe it's a XBMC fault too ?! Would it be possible that the channel providers switch the video/audio codec or other parameters when they switch to a commercial break ? And in this case the XBMC video player can't handle it fast enough ? Did you discover comparable problems ? Greetz LastCoder RE: Stuttering tv<->commercial break - FernetMenta - 2012-05-24 Quote:Would it be possible that the channel providers switch the video/audio codec or other parameters when they switch to a commercial break Yes, that's possible. What exactly happens, does the video stream close/re-open? Can you provide a log? BTW: I don't notice this behavior in Germany, DVB-S. RE: Stuttering tv<->commercial break - LastCoder - 2012-05-24 (2012-05-24, 17:37)FernetMenta Wrote: Yes, that's possible. What exactly happens, does the video stream close/re-open? It's like the behaviour if xbmc syncs video and audio stream .. video stutters, no audio for a moment .. lasts for some seconds .. stream is not closed .. Quote:Can you provide a log? Will try .. I have to check if recordings and playback of recordings are affected too ... Quote:BTW: I don't notice this behavior in Germany, DVB-S. I use DVB-S too. RTL is my favorite channel for that, seems to depend on the program too; clocklike with "blockbusters"/movies and other series starting at 20:15 .. While this problem only lasts for some seconds on regular free SD channels, the stuttering when I enabled HD+ channels with a smartcard only disapeared when I switched the channel for a moment ... maybe the codec difference between real HD material for the program and the commercial break is much greater ?!? I checked the oscam logs and tvheadend logs and it was no decoding problem. Greetz LastCoder RE: Stuttering tv<->commercial break - FernetMenta - 2012-05-24 I only watch HD channels and don't notice this behavior (backend is vdr). If stream parameters changed on RTL, I guess I would have noticed. I wait for your log. RE: Stuttering tv<->commercial break - tlanfer - 2012-05-24 I have the same issue, also using tvheadend as a backend and watching hd-channels in germany Ill see if i can provide a log shortly. RE: Stuttering tv<->commercial break - bilbonvidia - 2012-05-24 I noticed the same when I was using tvheadend, sometimes the channel would lock completely and I'd have to change channel. I noticed it on 4hd. (uk) RE: Stuttering tv<->commercial break - LastCoder - 2012-05-25 (2012-05-24, 18:16)FernetMenta Wrote: I only watch HD channels and don't notice this behavior (backend is vdr). OT: would you recommend vdr over tvheadend ? At least the tvmovie/web epg sounds very interesting to me And obviously there are less errors than with tvheadend ?!? @tlandfer & bilbonvidia: excellent .. but points to a tvheadend error Greetz LastCoder RE: Stuttering tv<->commercial break - Swifty - 2012-05-25 (2012-05-25, 12:12)LastCoder Wrote: @tlandfer & bilbonvidia: excellent .. but points to a tvheadend error Maybe not, I see the same issue on 4HD with VDR... I think it's where there is an audio stream change, I get stuck video for ~1 second and repeating audio (like a stuck record) which clears in around 1 second, it's always when the commercials start/finish... RE: Stuttering tv<->commercial break - FernetMenta - 2012-05-25 An audio stream change would show up in the log. Is this the case? I notice that audio volume pumps up during commercials but no stuttering. can someone post a log? RE: Stuttering tv<->commercial break - Swifty - 2012-05-25 I've not looked to be honest, as it didn't bother me that much.. just thought i'd chime in to say it was visible with VDR too I will see if I can grab a log over the weekend for you. RE: Stuttering tv<->commercial break - Dogchow - 2012-05-26 I think your problems are due to the AAC stream changing from 5.1 -> 2.0 https://github.com/opdenkamp/xbmc/issues/522 RE: Stuttering tv<->commercial break - tsp42 - 2012-05-27 http://forum.xbmc.org/showthread.php?tid=115383 The master branch includes the ffmpeg fix. |