ffdshow tryouts project: Discussion & Development

[NiFa]

Originally Posted by albain

Okay, there is this :

TffdshowDecAudio::StartStreaming Audio renderer replaced successfully

This is a feature that I removed because it was buggy : in output section you had the possibility to select a multichannel device that is not the default audio endpoint if the input stream is multichannel.

In fact FFDShow after starting streaming would stop the graph and will disconnect the audio renderer and load the selected one.

This "hack" caused many stability problems (crashes), which is why I removed it.

You should make sure that the default audio endpoint selected in windows is the same as the one you selected in FFDShow rev 3054.

As this is a 3 channels stream that you outputted in SPDIF format, the default audio endpoint should be SPDIF or HDMI.

My default audio output is VIA High defination audio spdif interface (TX1), which is same one that I use with 3154 as multichannel device.
Is there anything else which could cause the problem? I have installed latest drivers for my soundcard.

EDIT: I tried revision 3179 from xvidvideo.ru, but I still do have same problem.

[albain]

Originally Posted by dann23

Hello. With beta2 I can play all the movies, but I have to choose Ignore number of reference frames . For me it remains the problem with seeking in wmp11. thank you for your work.

Seeking works under MPC-HC ?

@NiFa : for now I don't have anymore ideas but that shouldn't be very complicated if we have a working build

[dann23]

I also see a green top band on some movies.

[dann23]

Originally Posted by albain

Seeking works under MPC-HC ?

@NiFa : for now I don't have anymore ideas but that shouldn't be very complicated if we have a working build

no. the same problem. for you it's working?

[NiFa]

Originally Posted by albain

@NiFa : for now I don't have anymore ideas but that shouldn't be very complicated if we have a working build

It would be nice if someone could figure out where the problem lies, so I and others who have same problem could use newer revisions also and not only up to 3154. Hopefully it's not a big problem and is easy to fix.

[albain]

Originally Posted by dann23

no. the same problem. for you it's working?

There is a bug in this build.
Please don't use it anymore. I will post a new one very soon

EDIT : actually there are 2 bugs, I also have a problem with seeking

[albain]

@crlorentzen, Nifa : I didn't see crlorentzen's post earlier about the AC3 encode mode option.

When this option is unchecked, DTS passthrough works, right ?

The problem is narrowed down to this option which should be easier to digg around

[albain]

@crlorentzen, Nifa : could you please retest with this new build with AC3 encode mode checked and then checked ?

I added a new traces and also changed a few things. I don't expect that the things I changed make this work but why not.
Still, the additional traces should tell us more about the problem.

So if this doesn't work, please paste again debugview logs with AC3 encode unchecked and then checked.

You may get stutterring because there will be many more traces.

Now, about DXVA
This new build also fixes the yesterday bug (DXVA2 could not work unlike DXVA1).
However, I still can't seek, don't know why. I will work on this later.

Here is the link

[Snowknight26]

http://ffdshow-tryout.svn.sourceforg...threv=3180#l62

Line 62 could use some work in the grammar department.

[NiFa]

@Albain: Here are to debuglogs with AC3 encoder enabled and disabled.
AC3 encoder enabled
AC3 encoder disabled

Now I get sound even when AC3 encoder is enabled, there seems to be hope that this problem can be solved.

[albain]

Originally Posted by NiFa

@Albain: Here are to debuglogs with AC3 encoder enabled and disabled.
AC3 encoder enabled
AC3 encoder disabled

Now I get sound even when AC3 encoder is enabled, there seems to be hope that this problem can be solved.

Okay, so this is working ?

[buzzqw]

Hi albain

i have a nvidia gt240 that support vc1/h264 AND mpeg4/mpeg2, i will gladly do some test on dxva if you like
(my specs are Intel e8400, win7 32bit, gt240, amply: yahama 663 )

BHH

[dann23]

with beta 3 I can't play any of my movies. they are not starting. the same behavior for wmp11 and mpchc.

[NiFa]

Originally Posted by albain

Okay, so this is working ?

Yes, it works, but I got heavy stuttering, just as you said I might get, in your earlier post.

[Redsandro]

Random question: Is there a recommended SVN version on the sourceforge download page? I do like some stability but the latest stable build is from 2008.

[crlorentzen]

Originally Posted by albain

@crlorentzen, Nifa : could you please retest with this new build with AC3 encode mode checked and then checked ?

I added a new traces and also changed a few things. I don't expect that the things I changed make this work but why not.
Still, the additional traces should tell us more about the problem.

So if this doesn't work, please paste again debugview logs with AC3 encode unchecked and then checked.

You may get stutterring because there will be many more traces.

Now, about DXVA
This new build also fixes the yesterday bug (DXVA2 could not work unlike DXVA1).
However, I still can't seek, don't know why. I will work on this later.

Here is the link

3180 works, I get sound with DTS pass-through and AC3 encode enabled, AC3 re-encode is sent to the receiver. Disable AC3 encode and we get the better DTS pass-through.

We still need to work on an order of operations/precedence issue, pass-through should override the AC3 Encode option.

Looking better though.

[iron2000]

Will wait for a 64-bit DXVA ffdshow.

[albain]

Hi again,

here is a new *all-in-one* beta build :
http://damienbt.free.fr/ffdshow_rev3...dxva_beta4.exe

1/ DXVA fix : there was a deadlock in the flushing that blocked the seeking. Now this is fixed.

2/ DTS passthrough fix in AC3 encode mode

I removed the debug traces that I added before.

However you should uncheck the "send output debug string" option in FFDShow video configuration.

Please report if both are working (DXVA & DTS)

[NiFa]

I can't get DXVA to work, I get bad framedrop about every 2 seconds. Also I can't disable DXVA decoder, it's seems to be forced ON despite what I try to do.

[albain]

Originally Posted by NiFa

I can't get DXVA to work, I get bad framedrop about every 2 seconds. Also I can't disable DXVA decoder, it's seems to be forced ON despite what I try to do.

I can't reproduce your problems

If you uncheck H264 and VC1 boxes in FFDshow DXVA configuration > Hardware acceleration then it won't be used.

Also, note that the tray icons are different : the DXVA tray icon is orange whereas the classic video is red.

Lastly, some videos are not compatible with DXVA but will still be loaded if you set the compatibility option to max (ignore number of reference frames) and in that case you will get artifacts or weird results

Lastly (2), you don't have to force FFDShow in MPC > optoins > external filters. You should remove any of these.

By default FFDShow dxva has the same merit as video + 1.

The best approach to play with the presets is the following.

Let's say that you want DXVA to be used for 1080p and not for the others

1/ FFDshow DXVA config : define a default preset with H264/VC1 unchecked and enable presets autoload feature
2/ FFDShow DXVA config : define a HD preset loaded if input resolution is >= 1920x1080 and with H264/VC1 checked
3/ FFDShow video config : nothing to do apart enabling H264 decoding