At Fri, 5 Jun 2009 12:28:29 +0800, Wu Fengguang wrote:
On Thu, Jun 04, 2009 at 08:29:25AM +0200, Takashi Iwai wrote:
At Thu, 4 Jun 2009 14:05:52 +0800, Wei Ni wrote:
Yes, my test wav file is from Windows.
I had used different player to test with my test wav file. The mplayer has no mapping problem, but other players map channels wrong. As you said, it seems that is caused by the difference of the ALSA and Windows.
I guess mplayer corrects the channel mapping automatically.
Unfortunately, our nvidia codec doesn't support channel-slot assignment yet.
OK.
How could we fix this problems, do you have any suggestions?
It's a bit difficult issue right now. Usually we could "fix" the channel mapping in alsa-lib configuration. But, HD-audio has currently a single alsa-lib configuration, and others may use the right channel mapping.
I don't remember how is the case of Intel HDMI... Can anyone check?
The codecs I tested - G35/G45/GM45 - does not support the channel-slot assignment. I guess future hardwares may support that.
OK, and the channel assignment is also FL/FR/C/LFE/RL/RR, right?
thanks,
Takashi