ffdshow tryouts project: Discussion & Development

[clsid]

@mark0077
Just drag&drop a file into it. The graph gets build automatically.

@ikarad
http://gitorious.org/users/astrange

[albain]

There is a problem since version 2787

Revision 2786 is fine
Revision 2790 is not. It corresponds to an update of libmplayer

Problem : ffdshow crashes in Media Center
I have checked, this problem is different from the one I saw earlier.

The crash is located here :

Twscale.cpp

void Tswscale::done(void)
{
if (swsc) libmplayer->sws_freeContext(swsc);swsc=NULL;
}

and the message of VS is "This may be due to a corruption of the heap".

I have no idea of how to analyze it

Thank you for any help

[clsid]

In which revision things go wrong? 2788, 2789, or 2790?

[albain]

I am not sure, I will test each of those and will get back to you

[haruhiko_yamagata]

Originally Posted by iron2000

I don't mean using the DScaler deinterlacing filters in ffdshow.
I mean using ffdshow as a filter in DScaler, to postprocess the picture in DScaler.

Was able to do it in some version of ffdshow way back.

Works for me. Please update to the latest.
I'm writing about preset settings. Does it help? You need a preset settings named ffdscaler.

[albain]

Originally Posted by clsid

In which revision things go wrong? 2788, 2789, or 2790?

Unfortunately, I have compilation errors on builds 2788 and 2789, so I have to stick to 2790

[Amour]

Originally Posted by h_yamagata

By the way, in a dialog 'About' page, if I click 'Version details", I see
"ff_theora.dll not found".
It's much appreciated if you implement a missing function 'getVersion'.

And if you have more time, please update ff_theora. The original project
is great, however, our ff_theora is quite outdated.

Please forgive me, but as mentioned earlier this week it's my first time using a compiler, so I will probably not “implement” anything related to theora as I do not know where/how to create this missing “getVersion”.

However, I will soon post a big translation patch.

[clsid]

Originally Posted by albain

Unfortunately, I have compilation errors on builds 2788 and 2789, so I have to stick to 2790

Exactly when does ffdshow crash in MC? During decoding or only when using as a post-processor? Are specific settings required? Then I'll see if I can reproduce it on Vista x64 MC. Have you been able to reproduce the crash outside of MC?

In 2788 I have cleaned up the config.h file, removing malloc and free defines. Same functions are defined in mem.c/h and those are now used instead. Only difference is their names: av_free, av_malloc. Maybe a wrong name is still being used somewhere in the code. See if adding the two defines back to config.h solves the crash.

edit: I have spotted a few uses of malloc in yuv2rgb.c. I will replace them with av_malloc. That might fix it.

[haruhiko_yamagata]

Originally Posted by Amour

Please forgive me, but as mentioned earlier this week it's my first time using a compiler, so I will probably not “implement” anything related to theora as I do not know where/how to create this missing “getVersion”.

However, I will soon post a big translation patch.

OK, never mind.
However, it's a small function. There are many similar "getVersion" in other dlls. If you are interested in C/C++, it's a good place to start.

And good news, translations are welcome.

[albain]

Originally Posted by clsid

Exactly when does ffdshow crash in MC? During decoding or only when using as a post-processor? Are specific settings required? Then I'll see if I can reproduce it on Vista x64 MC. Have you been able to reproduce the crash outside of MC?

In 2788 I have cleaned up the config.h file, removing malloc and free defines. Same functions are defined in mem.c/h and those are now used instead. Only difference is their names: av_free, av_malloc. Maybe a wrong name is still being used somewhere in the code. See if adding the two defines back to config.h solves the crash.

edit: I have spotted a few uses of malloc in yuv2rgb.c. I will replace them with av_malloc. That might fix it.

Crashes occur when browsing into the video folders : the decoders are loaded to display the thumbnails for each video.

Otherwise if I play the video with wmp it works fine.

I will test your fixes when available

[clsid]

I have committed the changes. Hopefully this will fix it.

[albain]

Originally Posted by clsid

I have committed the changes. Hopefully this will fix it.

That did it !

Thanks

[Amour]

Here is my translation update:
https://sourceforge.net/tracker/?fun...41&atid=867362

It also fixes some English phrases, so I had to edit other translations as well. This explains the number of modified files in this patch.

[ikarad]

I found a problem with ffdshow and MPC HOMEcinema

If I want to see DVD movie with separated subtitles (which doesn't on the dvd), subtitle aren't display if I use open dvd fuinction of MPC Homecinema and subtitle function of FFDSHOW.
I use mpc homecinema 1018 and ffdshow 2812

[clsid]

How did you name the subtitle files? If ffdshow doesn't find them, it can't display them. You can also load a subtitle file manually in ffdshow settings if needed.

[ikarad]

Originally Posted by clsid

How did you name the subtitle files? If ffdshow doesn't find them, it can't display them. You can also load a subtitle file manually in ffdshow settings if needed.

No there isn't problem with subtitle file (.srt) because ffdshow can display them if I don't use opendvd function of MPc homecinema.
Subtitle can't be displayed by ffdshow only if I use opendvd function in mpc-homecinema (function to see dvd movie).
Even manually it doens't work if I use open dvd function of mpc homecinema.
To see subtitle I must not use opendvd function and load manually .vob file.

subtitle file
http://www.zshare.net/info.html?5783...5f87aba3c1024a

dvd sample
http://www.zshare.net/info.html?5783...800c653aafc20f

subtitle file doesn't belong to this dvd but It allow to show the problem.
If I use opendvd function to open dvd and load subtitle function of Mpc homecinema subtitle are displayed. But If i use subtile function of ffdshow instead of load subtitle function of mpc homecinema subtitles are not displayed.

[clsid]

I don't think this has anything to do with how MPC operates. It is more likely related to the "DVD Navigator" source filter. For example the DirectVobSub subtitle filter only loads when a compatible source filter is in the graph. I suspect something similar applies to ffdshow. Autoloading the correct subtitle file is certainly not going to work when playing a DVD, because when ffdshow asks the source filter for the filename it will just get an empty string (unlike when you play a separate .vob file). So you would have to manually specify the sub file in ffdshow configuration. Although that does not seem to work with DVDs either.

I suggest you use the internal subtitle renderer of MPC instead for manually loading the external subs with DVDs. Or wait for Haruhiko to comment on this.

Do you also get an "Integer division by zero" error in MPC when seeking in your sample DVD?

[haruhiko_yamagata]

Originally Posted by ikarad

I found a problem with ffdshow and MPC HOMEcinema

If I want to see DVD movie with separated subtitles (which doesn't on the dvd), subtitle aren't display if I use open dvd fuinction of MPC Homecinema and subtitle function of FFDSHOW.
I use mpc homecinema 1018 and ffdshow 2812

I have re-enabled external subtitles file for DVD. I disabled for a reason, DVDs may have DVD subtitles and closed caption. If three kind of subtitles are displayed at the same time, it's just a mess. And this really happens (strictly speaking, external subtitles are not displayed at the same time as DVD subtitles, but if DVD subtitles disappear, external subtitles appear immediately...), ffdshow just does not crash.

[haruhiko_yamagata]

Originally Posted by Amour

Here is my translation update:
https://sourceforge.net/tracker/?fun...41&atid=867362

It also fixes some English phrases, so I had to edit other translations as well. This explains the number of modified files in this patch.

I couldn't apply the patch for encoding reason. Please pack modified files in a zip, rather than a patch.

[morsa]

Does it open DcvproHD MXFs ?

Is it planned for the future?