Kodi Community Forum

Hi all,

Installed XBMC very successfully on our Ubuntu 7.10 media centre, from SVN using the build script.

We have a 5.1 surround sound system, using an analogue onboard card.
I've got a .asoundrc that upmixes 2 channel sound to 5.1 (and plays back actual 5.1 normally), which works perfectly in XBMC for music playback, etc.

However, whenever I try to watch a DVD with 5.1, the sound will not play, and often the DVD will just freeze playback after a few seconds of the feature.

Looked at xbmc.log and it seems it's trying to pass the audio through "xbmc_51to2", I think. Why would it be trying to downmix it? Or what's going on here?

Any thoughts?

Cheers.

In testing, I edited DVDAudioPlayer.cpp and removed the line that was forcing it to downmix before going to alsa "default" (there was a TODO suggesting making this user selectable anyway). Still, same effect, the full log lines at the point of problem are:

15:13:10 T:2775759760 M:111517696 NOTICE: Creating audio device with codec id: 86020, channels: 6, sample rate: 48000, no pass-through
15:13:10 T:2775759760 M:111517696 DEBUG: CALSADirectSound::CALSADirectSound - opening alsa device
15:13:10 T:2800937872 M:111517696 DEBUG: CDVDPlayerVideo - CDVDMsg::GENERAL_SYNCHRONIZE
15:13:10 T:2775759760 M:111652864 DEBUG: CALSADirectSound - using alsa device default
15:13:10 T:2775759760 M:111652864 DEBUG: CDVDPlayerAudio:: Discontinuty - was:50091325.920000, should be:50040000.000000, error:-51325.920000
15:13:21 T:2800937872 M:111640576 INFO: CDVDPlayerVideo - Stillframe detected, switching to forced 25.000000 fps

And the last line is where the playback freezes.

ALSADirectSound.cpp , rather, line 117.
Sorry for repeat posts - can't work out how to edit my previous posts.

Bump? Anyone got any thoughts?
Confirmed this on another computer/install; dvd playback stops when a 5.1 stream is encountered.