SPDIF passthru not working with VLC media player about cmediadrivers HOT 5 CLOSED

I know that there's supposed to be a bug in VLC media player with SPDIF 
passthru but 
it IS working with my M-audio transit USB external sound card...

[deleted comment]

this bug appears on almost every PCI soundcard / AC97/HDA codec. My guess is 
that 
the resolution of the position in a sound stream which is currently being 
played is 
too coarse in regular DMA engines, and that causes sound-resyncs and 
consequently 
the stuttering in vlc, or it might be an issue with the PortClass (WaveCyclic/
WavePCI/WaveRT) driver model - iirc usb soundcards usually have AVStream 
drivers.
Media Player Classic, PowerDVD, WinDVD, ffdshow, AC3Filter and lots of other  
software which supports passthrough is not affected by this and I haven't 
bothered 
installing the toolchain for vlc in order to take a look at its runtime 
behaviour, 
so don't expect a fix or workaround anytime soon, but I'll keep the issue open 
for 
now.

the current -git version of vlc fixes the bug if you set the "Output Type" to 
WaveOut instead of DirectX: http://nightlies.videolan.org/ - after reviewing 
the 
code responsible for the timing, I've concluded that the issue can't be fixed 
in the 
driver, hence I'll close it.

dogber1,

Thanks for looking!

I hope the bugfix in the -git version of vlc will reach to normal release 
version 
soon...