cbxbiker61 Wrote:Try substituting "plughw" for "hw". I think AES0 has to be interpretted by Alsa proper rather than passing it directly to the kernel driver.

megakha Wrote:Well, aplay streams multichannel audio (DTS, AC-3, ..., etc.) correctly through HDMI to my receiver. Meaning that alsa works correctly. XBMC passes movies soundtracks correctly as well. It is just multichannel music I have trouble with. "IsPassthrough - false" always in log.

ATI HD63xx (E350) => Onkyo 808.

Forsaken Wrote:Same error as before.

sjongele Wrote:You have fixed the issue for the individual VOBs. Great step forward! It is getting more subtle now Turns out the menus are 25fps and the movies are 50 fps. On switching from a 25fps VOB to a 50fps one, things go wrong. By jumping up and down 30s once, everything I have tried can be made to play correctly now.

For many of my DVDs I have just made an ISO, so that menus and options are still present. Thanks for the mkv hint, but converting them with makemkv looks like a work-around as it would take quite some time and menus/options could be lost. As the issue appears with ISOs, it also means that the original DVDs don't play correctly anymore. That cannot be the intention?

cbxbiker61 Wrote:I just committed a change to both audiofilter and xbmc repos. Now this change is really subtle compared to the last. Basically the first audio frame of the VOB's may be invalid. Previously I would just drop the frame. Now the code will instead repeat the last valid frame. So it should make the audio transitions between VOB's more fluid.

Makemkv does mark chapters, so you can move pretty rapidly forward and back, but yes you lose the menus. (To me that's mostly a bonus )

As far as the 25/50fps VOB transitions go...I don't see anything in the audio code which should affect that (I noticed when transitioning to the main video that the audio was playing fine, just the video was not behaving). I'm in the US, so 25/50fps is not common here. I was pleasantly surprised to see 50fps work correctly.

cbxbiker61 Wrote:Well, I just looked at the alsalib code and AES0 should be valid for any hdmi card. So I wonder if you're actually selecting the right output device. What I'd do in your case is strip out a high-def stream and then see if I can get it to play with aplay, it's a bit easier to debug this way. I use a couple of scripts to get/test the hd stream.

mkvextract will extract a track from an mkv file if you have one of those. Otherwise you can use ffmpeg for something else. Once you've extracted a high-def track, you can use spdifer (part of AudioFilter) to put it in spdif format.

This is the command I use to play a dts-hd track.

Code:

aplay -D hdmi:CARD=NVidia,DEV=0,AES0=6 -c8 -fs16_le -r192000 test.file.spdif768

This is the command I use to play a std dts track.

Code:

aplay -D hdmi:CARD=NVidia,DEV=0,AES0=6 -c2 -fs16_le -r48000 test.file.spdif

sjongele Wrote:Were you able to test it on a full ISO, or just on a single VOB? I have rebuilt AudioFilter and XBMC; the issue still appears. If it helps I can make a 30/60 fps ISO with the same issue available as well

Forsaken Wrote:No no sound that way either, just quiet.

cbxbiker61 Wrote:It seems aplay should be making the same complaint about AES0, if you're using the same Card id. Was it?

Post the output of "aplay -l" and the aplay command you're using to test.

Also, did you say that some pass-through streams are working, but just not dts-hd? If that's the case
then I could take a different approach.

Forsaken Wrote:No I realized that the device was wrong, it should be 0 for hdmi but the result was the same, no audio.

Yes regular DTS/DD works.

aplay -D hdmi:CARD=0,DEV=0 -c8 -fs16_le -r192000 dts.spdif

Code:

**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC889 Analog [ALC889 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC889 Digital [ALC889 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

aplay -L

Code:

hdmi:CARD=Intel,DEV=0
    HDA Intel, HDMI 0
    HDMI Audio Output