ffdshow tryouts project: Discussion & Development - Page 451

Thunderbolt8 · 1st November 2009, 11:43

Quote:

Originally Posted by Mr VacBob

My dual-core system is in repair for a week; I'll check it, but might not be able to until then.

would be great, thanks!

jruggle · 3rd November 2009, 03:39

Quote:

Originally Posted by Keiyakusha

it looks like this is ffmpeg problem.
I can normally decode audio using ffmpeg SVN 19894, but with svn 20421 I have a bunch of errors like:
[ac3 @ 0x2268070]error decoding the audio block
[ac3 @ 0x2268070]exponent out-of-range
and audio distorted in the same way...

EDIT:
ffmpeg-r20024 -> fine
ffmpeg-r20060 -> distorted

Thank you for reporting this and giving a sample. I did a lot of changes between 20036 and 20055. I will track down the problem and fix it as soon as possible.

edit: now fixed in r20437. sorry for the regression...

clsid · 3rd November 2009, 15:05

Thanks!

leeperry · 3rd November 2009, 21:42

Quote:

Originally Posted by jruggle

Thank you for reporting this and giving a sample. I did a lot of changes between 20036 and 20055. I will track down the problem and fix it as soon as possible.

edit: now fixed in r20437. sorry for the regression...

oh, a ffmpeg developer

any chance you could make ffmpeg decode AC3 and DTS in 32float instead of 16 integer please? all the other AC3/DTS decoders in ffdshow output 32 float, this allows less rounding errors...especially when post-processing audio.

mark0077 · 4th November 2009, 13:50

Quote:

Originally Posted by leeperry

oh, a ffmpeg developer

any chance you could make ffmpeg decode AC3 and DTS in 32float instead of 16 integer please? all the other AC3/DTS decoders in ffdshow output 32 float, this allows less rounding errors...especially when post-processing audio.

Gets my vote also

jruggle · 4th November 2009, 18:45

Quote:

Originally Posted by leeperry

oh, a ffmpeg developer

any chance you could make ffmpeg decode AC3 and DTS in 32float instead of 16 integer please? all the other AC3/DTS decoders in ffdshow output 32 float, this allows less rounding errors...especially when post-processing audio.

I'm not DTS maintainer, but for AC3 I have a patch mostly ready. It is a bit slower than the 16-bit decoding, so I will need to make it configurable to decode to either float32 or int16.

leeperry · 4th November 2009, 20:29

oh cool, you're the man! actually liba52 sounds fine already(and is 32float), but it's still very nice to have an alternative

OTOH, libdts sounds pretty bad(32 float too)...so 32float DTS in ffmpeg would be really fantastic. thanks for your prompt reply btw, much appreciated

albain · 5th November 2009, 11:25

Hi all,

here I am again with a new beta build for HD bitstream

Here is the link

In this build I have fixed TrueHD and DTS HD bistream from the logs you posted.

@tetsuo55
However DTS HD does not work because the HD blocks are stripped off by MPC splitter. I don't understand why, do you know something about it ?

@testers
I have posted an updated build of the hook tool on the same link I have PM. Please use this new build for the new tests, I have added traces on the media types used between the player and the audio card (the official MS media types are not accepted for all formats), and also on the wasapi implementation.
I need you redo the tests with the new hook tool

Mercury_22 · 5th November 2009, 11:43

Quote:

Originally Posted by albain

Hi all,

...
@tetsuo55
However DTS HD does not work because the HD blocks are stripped off by MPC splitter. I don't understand why, do you know something about it ?

...

This apply to both MPC-HC's MPEG PS/TS/PVA and Matroska splitters ?

albain · 5th November 2009, 11:45

It works for MKV (I receive the full DTS HD blocks), but not with M2TS files

THX-UltraII · 5th November 2009, 12:20

Albain,

is this a version where DTS-master and TrueHD should work also for 4xxx users?

tetsuo55 · 5th November 2009, 12:23

I have browsed through the source, but i do not see any stripping code.

Source is here: http://sourceforge.net/apps/trac/mpc...r/mpegsplitter

albain · 5th November 2009, 12:53

Quote:

Originally Posted by THX-UltraII

Albain,

is this a version where DTS-master and TrueHD should work also for 4xxx users?

Not for now : technically nothing prevents HD bitstream to work on those series. Only the PAP is missing.
The work to do on those is to trick the audio driver by providing LPCM format whereas it is compressed. This needs to be done after DTSHD/TrueHD/EAC3 bitstream completely work (from ffdshow to MPC wasapi audio renderer).

Otherwise, there is a problem with DTS HD : the HD blocks are not stripped off correctly by ffdshow, this needs to be fixed.

liquidskin76 · 5th November 2009, 13:01

@Albain

I'll try and give the beta build a test on my geforce 9300 at lunch time today. I'll be running the audio from an MKV container.

Will report back this afternoon if i can.

Cheers for all your hard work!

SamuriHL · 5th November 2009, 14:27

Let me finish breakfast and I'll give it a try. I have been ridiculously busy with work the last week and that will continue til the end of the week unfortunately. However, I'll give it a shot and see what I can do.

liquidskin76 · 5th November 2009, 14:55

@Albain,

Here's my logs from beta26, using GeForce 9300 HDMI Audio, MKV container, and MatroskaSplitter (not Haali).

TrueHD passthrough enabled, get LPCM audio... (http://pastebin.com/pastebin.php?dl=m464914fc)

DTSHD passthrough enabled, get no audio... (http://pastebin.com/pastebin.php?dl=m3be23c4b)

AC3 and DTS appear to bitstream ok. With DTSHD disabled i get the DTS core bitstreamed ok.

Cheers

SamuriHL · 5th November 2009, 15:12

@albain

http://pastebin.com/pastebin.php?dl=d2f084a8e

No joy on TrueHD. Light doesn't come on for it and I get no sound at all. I'll try to do the hook tests later if I can get to it.

THX-UltraII · 5th November 2009, 15:30

CyberlinkUSA (Tom) just announced that PDVD9 will be updated later this month by a patch that give bitstream support for the 5xxx-cards.

So I was thinking: ''If Cyberlink can do it, why would others can't?''. Or is it a matter of a 'secret' that ATI only provided to Cyberlink?

Skinleech · 5th November 2009, 16:02

Thanks albain.

I'll try the new hook tool when I have time - hopefully later on today and see how I get on. Though I expect I will still encounter issues unprotecting audiodg. Worth a try however.

@ SamuriHL, are you using your Xonar for these tests at all, or is it just your ATI card?

SamuriHL · 5th November 2009, 16:09

This won't work on the Xonar. The hook tool is made for that, but, the tryouts are made for the ATI card. I'll get to the hook tool later. I just have a lot of work to get through today. (and have been for the past 2 weeks, unfortunately)

3rd November 2009, 15:05	#9003 \| Link
clsid ***** Join Date: Feb 2005 Posts: 5,647	Thanks! __________________ MPC-HC 2.2.1

4th November 2009, 20:29	#9007 \| Link
leeperry Kid for Today Join Date: Aug 2004 Posts: 3,477	oh cool, you're the man! actually liba52 sounds fine already(and is 32float), but it's still very nice to have an alternative OTOH, libdts sounds pretty bad(32 float too)...so 32float DTS in ffmpeg would be really fantastic. thanks for your prompt reply btw, much appreciated Last edited by leeperry; 4th November 2009 at 20:42.

5th November 2009, 11:45	#9010 \| Link
albain Media Control author Join Date: Dec 2006 Location: Paris Posts: 1,014	It works for MKV (I receive the full DTS HD blocks), but not with M2TS files Last edited by albain; 5th November 2009 at 11:53.

5th November 2009, 12:23	#9012 \| Link
tetsuo55 MPC-HC Project Manager Join Date: Mar 2007 Posts: 2,317	I have browsed through the source, but i do not see any stripping code. Source is here: http://sourceforge.net/apps/trac/mpc...r/mpegsplitter __________________ MPC-HC, an open source project everyone can improve. Want to help? Test Nightly Builds, submit patches or bugs and chat on IRC

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5th November 2009, 11:25	#9008 \| Link
albain Media Control author Join Date: Dec 2006 Location: Paris Posts: 1,014	Hi all, here I am again with a new beta build for HD bitstream Here is the link In this build I have fixed TrueHD and DTS HD bistream from the logs you posted. @tetsuo55 However DTS HD does not work because the HD blocks are stripped off by MPC splitter. I don't understand why, do you know something about it ? @testers I have posted an updated build of the hook tool on the same link I have PM. Please use this new build for the new tests, I have added traces on the media types used between the player and the audio card (the official MS media types are not accepted for all formats), and also on the wasapi implementation. I need you redo the tests with the new hook tool

5th November 2009, 12:20	#9011 \| Link
THX-UltraII Registered User Join Date: Aug 2008 Location: the Netherlands Posts: 851	Albain, is this a version where DTS-master and TrueHD should work also for 4xxx users?

5th November 2009, 13:01	#9014 \| Link
liquidskin76 Registered User Join Date: Dec 2008 Posts: 233	@Albain I'll try and give the beta build a test on my geforce 9300 at lunch time today. I'll be running the audio from an MKV container. Will report back this afternoon if i can. Cheers for all your hard work!

5th November 2009, 14:27	#9015 \| Link
SamuriHL Registered User Join Date: May 2004 Posts: 5,351	Let me finish breakfast and I'll give it a try. I have been ridiculously busy with work the last week and that will continue til the end of the week unfortunately. However, I'll give it a shot and see what I can do.

5th November 2009, 14:55	#9016 \| Link
liquidskin76 Registered User Join Date: Dec 2008 Posts: 233	@Albain, Here's my logs from beta26, using GeForce 9300 HDMI Audio, MKV container, and MatroskaSplitter (not Haali). TrueHD passthrough enabled, get LPCM audio... (http://pastebin.com/pastebin.php?dl=m464914fc) DTSHD passthrough enabled, get no audio... (http://pastebin.com/pastebin.php?dl=m3be23c4b) AC3 and DTS appear to bitstream ok. With DTSHD disabled i get the DTS core bitstreamed ok. Cheers

5th November 2009, 15:12	#9017 \| Link
SamuriHL Registered User Join Date: May 2004 Posts: 5,351	@albain http://pastebin.com/pastebin.php?dl=d2f084a8e No joy on TrueHD. Light doesn't come on for it and I get no sound at all. I'll try to do the hook tests later if I can get to it.

5th November 2009, 15:30	#9018 \| Link
THX-UltraII Registered User Join Date: Aug 2008 Location: the Netherlands Posts: 851	CyberlinkUSA (Tom) just announced that PDVD9 will be updated later this month by a patch that give bitstream support for the 5xxx-cards. So I was thinking: ''If Cyberlink can do it, why would others can't?''. Or is it a matter of a 'secret' that ATI only provided to Cyberlink?

5th November 2009, 16:02	#9019 \| Link
Skinleech A.K.A Mangoat Join Date: Nov 2002 Posts: 203	Thanks albain. I'll try the new hook tool when I have time - hopefully later on today and see how I get on. Though I expect I will still encounter issues unprotecting audiodg. Worth a try however. @ SamuriHL, are you using your Xonar for these tests at all, or is it just your ATI card?

5th November 2009, 16:09	#9020 \| Link
SamuriHL Registered User Join Date: May 2004 Posts: 5,351	This won't work on the Xonar. The hook tool is made for that, but, the tryouts are made for the ATI card. I'll get to the hook tool later. I just have a lot of work to get through today. (and have been for the past 2 weeks, unfortunately)