Hi all,
I think it may not be polite to post it here, but I really want to solve this problem and I see somewhat dawn light.
I am the author of MPlayerX, and I have been facing the exactly same problem from 10.7 and MPlayerX 1.0.7
then I worked with one volunteer who helped me very much to test and fix this problem (in 10.7.0), at last, we have done to the level of
it could output the DTS/AC3 through SPDIF, but after that, there will be no sound at all until the OS rebooting ( which I thought is a OS bug).
I have merged this patch in 1.0.8, but still I am not sure whether it could work in 10.7.1.
So if there is anyone who got time to help me to test it and make sure of it.
of course, I would like to share the patch.
MPlayerX is in Mac App Store, and also google code
http://code.google.com/p/mplayerx
and here comes the test instruction.
1. arm your hardwares.
2. set the receiver as the default output in System Preference -> Sound -> Output
2. open MPlayerX, in Preference -> Audio
3. DISABLE Detect SPDIF digital output automatically (since some receiver could not recognized correctly)
4. ENABLE AC3 and DTS
5. try to open mkv or some file which has a AC3/DTS track.
I will check this thread as far as I could, but if you could leave me a message to zongyao.qu[at]gmail.com, it will be really sincere and appreciated.