[WINDOWS][PATCH]Bitstream output of HD audio formats

Thanks all

Considering using the consumer preview before I need to shift a lot of my library onto the actual HTPC itself. I run it using EventGhost so I may hang fire for now as it is all working so smoothly.

(2012-03-12 22:41)DDDamian Wrote:  

(2012-03-12 04:32)DDDamian Wrote:  

(2012-03-11 11:50)DanielaE Wrote:  I made DirectSound capable of bitstream pass-through as well. May be this helps people with WASAPI problems.

I saw that, but if anything else plays (system sound, etc) it would break passthrough I think. WASAPI's definitely best as long as the sound drivers are good.

Hi Daniela - just confirming DirectSound will not allow passthrough as expected - it'll reject passthrough formats as it controls the output format Any call to initialize DirectSound needs to use it's sample rate/data format or be rejected.

Well, I re-ran my complete test suite (all HD formats, up to 7.1, up to 24bit, up to 174.4kHz) with DirectSound selected instead of WASAPI - just to make sure my latest changes didn't break anything in this regard. DS was configured with default settings (16bit, 48kHz).

Everything went fine without any stutter or failure.

(2012-03-13 20:46)DanielaE Wrote:  

(2012-03-12 22:41)DDDamian Wrote:  

(2012-03-12 04:32)DDDamian Wrote:  

(2012-03-11 11:50)DanielaE Wrote:  I made DirectSound capable of bitstream pass-through as well. May be this helps people with WASAPI problems.

I saw that, but if anything else plays (system sound, etc) it would break passthrough I think. WASAPI's definitely best as long as the sound drivers are good.

Hi Daniela - just confirming DirectSound will not allow passthrough as expected - it'll reject passthrough formats as it controls the output format Any call to initialize DirectSound needs to use it's sample rate/data format or be rejected.

Well, I re-ran my complete test suite (all HD formats, up to 7.1, up to 24bit, up to 174.4kHz) with DirectSound selected instead of WASAPI - just to make sure my latest changes didn't break anything in this regard. DS was configured with default settings (16bit, 48kHz).

Everything went fine without any stutter or failure.

Can you check if you disabled WASAPI in Windows audio control panel? Unchecking "Allow applications to take exclusive control of this device"?

On Win7 disabling WASAPI breaks passthrough as expected. Wondering if Win8 does things differently.

(2012-03-13 07:49)Dj Freddy D Wrote:  Finally had the time to play around with this. I just remembered when I went from Dharma to this version of XBMC I just updated instead of removing old version and doing a clean install. I uninstalled XBMC and re-installed. I now get that infamous "D" for digital now

Thanks DDaminan and Bluray for your help!

I'm glad that you got it to work. It's time to enjoy HD audio then....

(2012-03-11 11:50)DanielaE Wrote:  I made DirectSound capable of bitstream pass-through as well. May be this helps people with WASAPI problems.

this sounds kool, i'm going to try with my xonar HDAV 1.3, I'm stuck with it because of it's driver, WASAPI exclusive does bypass the Windows mixer, but the Xonar driver resamples and switches the channel to whatever you set the Xonar control panel to and breaks the HD Audio passthrough. well where i can find the installer that does the bitstream in directSound mode?

keep your good work guys n girls

(2012-03-13 20:55)DDDamian Wrote:  

(2012-03-13 20:46)DanielaE Wrote:  

(2012-03-12 22:41)DDDamian Wrote:  Hi Daniela - just confirming DirectSound will not allow passthrough as expected - it'll reject passthrough formats as it controls the output format Any call to initialize DirectSound needs to use it's sample rate/data format or be rejected.

Well, I re-ran my complete test suite (all HD formats, up to 7.1, up to 24bit, up to 174.4kHz) with DirectSound selected instead of WASAPI - just to make sure my latest changes didn't break anything in this regard. DS was configured with default settings (16bit, 48kHz).

Everything went fine without any stutter or failure.

Can you check if you disabled WASAPI in Windows audio control panel? Unchecking "Allow applications to take exclusive control of this device"?
On Win7 disabling WASAPI breaks passthrough as expected. Wondering if Win8 does things differently.

Win8 does the same as Win7. As I said, all audio settings are defaults. This means both checkboxes in the audio panel affecting exclusive mode are checked.

In fact, I have reinstalled everything without changes to the installation defaults: Win8 CP with AMD Catalyst, AMD HDMI, and XBMC. Passthrough is fine with every output device option available: primary sound device, AMD DirectSound, AMD WASAPI. I.e. passthrough is supposed work out-of-the-box.

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(2012-03-15 03:30)Senthil Wrote:  where i can find the installer that does the bitstream in directSound mode?

Every build advertised in this thread has that capability.

(2012-03-15 10:10)DanielaE Wrote:  This means both checkboxes in the audio panel affecting exclusive mode are checked.

Hi Dani, if you disable "Allow applications to take exclusive control of this device" what happens in Win8?

Well - the expected: no more passthrough.

(2012-03-15 20:04)DanielaE Wrote:  Well - the expected: no more passthrough.

Yeah, that switch basically changes things from WASAPI Exclusive to WASAPI Shared/DirectSound or vice-versa. Okay, just wondered if it became a viable workaround in Win8, as Win7 w/DirectSound & bitstreaming = no go. Currently the code expects WASAPI Exclusive to function. Still, that should work for everyone providing their sound device drivers support it. Unfortunately for Senthil the Xonar drivers just don't support bistreaming outside of using the Arcsoft drivers specific to TMT

Holy cow.... am getting the RC2 version as I type.
Great news, then I only need to pass my 3D rips to tmt 5.
Finally I can stay in XBMC for DVD, MKV and BDMV and enjoy bitstreaming.