ffdshow tryouts project: Discussion & Development

[albain]

Hi,

I have recompiled libavcodec with mingw64 and FFDShow with MSVC on my 64 bits environment and I am quite happy with the results :

MLP/TrueHD/AC3/EAC work
DTS/DTS-HD work

I use gcc 4.4, and the difference is that I compiled it under 64 bits.

I will try to post a new build soon

[albain]

Actually, everything work except one format :
TrueHD with 8 channels at 96khz (whereas 5.1 at 48khz work)

Here is the build :
http://rapidshare.com/files/15830261...t_x64.exe.html

[haruhiko_yamagata]

Originally Posted by STaRGaZeR

Thanks to this comment of nm the problem of ffdshow assuming a fixed field order for MBAFF interlaced streams (because it can't detect what's the correct one) may be solved. The problem was discussed in this thread.

nm says pict_struct is the key for detecting if the video is TFF or BFF, being 3 for TFF and 4 for BFF. Can you guys take a look at this?

Wow, thanks, it's really useful information.
I have implemented and it works perfectly for now.

[STaRGaZeR]

@albain

Some DTS samples are wrong with bad noise as always, tested with the Black Hawk Down sample. Also if when decoding EAC3 you open Info & CPU the audio stops. For those DTS samples that work, open Info & CPU results in a change to noise again. Vorbis still doesn't work. But definitely an improvement over the previous builds.

@haruhiko

Nice

[Mercury_22]

Originally Posted by albain

Actually, everything work except one format :
TrueHD with 8 channels at 96khz (whereas 5.1 at 48khz work)

Here is the build :
http://rapidshare.com/files/15830261...t_x64.exe.html

mp1/2/3 works DTS just noise AC3/ E-AC3/Vorbis/MLP no sound tested with MPC-HC 849 x64 and avi , ts and m2ts files

[alexins]

Originally Posted by Mercury_22

mp1/2/3 works DTS just noise AC3/ E-AC3/Vorbis/MLP no sound tested with MPC-HC 849 x64 and avi , ts and m2ts files

I confirm, takes place similarly for me.
__________________________________

In assembling of ffdshow 2262 x86, if we select conclusion AC3 - libavcodec appears error.
__________________________________

I made two versions of assembling ffdshow of x64, libavcodec.dll - GCC of 4.4.0 x86_64 and libavcodec.dll - VS2008sp1. The version of libavcodec.dll - VS2008sp1 reproduces AC3, DTS, e-ac3, Vorbis, MLP… without the errors, but there is a problem with performance when playing format H264.
ffdshow tryouts project, svn 2262 (x64) (libavcodec.dll - GCC 4.4.0 x86_64)
ffdshow tryouts project, svn 2262 (x64) (libavcodec.dll - VS2008sp1)

[Mercury_22]

Originally Posted by alexins

I confirm, takes place similarly for me.
__________________________________

In assembling of ffdshow 2262 x86, if we select conclusion AC3 - libavcodec appears error.
__________________________________

I made two versions of assembling ffdshow of x64, libavcodec.dll - GCC of 4.4.0 x86_64 and libavcodec.dll - VS2008sp1. The version of libavcodec.dll - VS2008sp1 reproduces AC3, DTS, e-ac3, Vorbis, MLP… without the errors, but there is a problem with performance when playing format H264.
ffdshow tryouts project, svn 2262 (x64) (libavcodec.dll - GCC 4.4.0 x86_64)
ffdshow tryouts project, svn 2262 (x64) (libavcodec.dll - VS2008sp1)

FINALLY WE HAVE A 64-bit WINNER !

The svn 2262 (x64) VS2008sp1 version from http://www.xvidvideo.ru/content/view/335/1/ it's working with ALL
Tested with MPC-HC and avi, ts and m2ts files with vorbis MLP DTS E-AC3 AC3 MP1/2/3

P.S. the svn 2262 (x86) 32-bit from http://www.xvidvideo.ru/content/view/334/1/ it's CRASHING with libav !!!!!!

Maybe this is the answer

Revision 2263 - Directory Listing
Modified Tue Oct 28 15:22:22 2008 UTC (75 minutes, 50 seconds ago) by h_yamagata
oops, (triggered a compiler's??) bug at rev 2261.

?

[STaRGaZeR]

MSVC builds are perfect for everything except H.264

@haruhiko

With the recent changes it seems that all MBAFF samples I have play with the correct field order, great work

Regarding the sample you posted here, it seems ffdshow flags different parts of the video as progressive and others as interlaced. CoreAVC and Cyberlink both flag the whole video as interlaced.

[nautilus7]

Originally Posted by albain

Actually, everything work except one format :
TrueHD with 8 channels at 96khz (whereas 5.1 at 48khz work)

Actually, TrueHD 7.1 is broken in 32bit builds also. With all 7.1 (regardless samplerate) samples i get no sound, while 5.1 play fine.

[albain]

Ok, it should not be difficult to figure out what's wrong with 8 channels TrueHD.

[ikarad]

I use ffdshow-mT (2250) (it's the only version where I don't have any dropped image with mpc homecinema and mt2s file (blu-ray)) but this version doesn't support HD audio codec (E-AC3,MLP,DTS-HD) because it's not the same build.
Do you expect to make a version with ffdshow-mt and HD audio codec support?

[Octo-puss]

I got a little problem I can't seem to solve.
Whenever I got a movie playing or paused - doesn't matter - just as long as any is loaded, and I open another instance of player (MPC in my case, but it's not important), there is no audio on the 2nd movie. What am I doing wrong, or what should I look for in FFD audio decoder settings?

[clsid]

That is a bug in your sound drivers.

[Octo-puss]

So much for onboard soundcards I guess, then

[clsid]

Then update your drivers. Or if there are no updates, report your problem to the manufacturer.

[LoRd_MuldeR]

I noticed that deinterlacing is broken in ffdshow r2253 and r2265

When I enable deinterlace then the deinterlacing filter seem to switch on and off randomly!
Happens at least with the KernelBob and the KernelDeint. You can clearly see it with the "Map" option checked.
Looks like sometimes the frames simply by-pass the deinterlace filter.

The older build r2202 works good. This is with live MPEG-2 broadcast in DVBViewer...

[littleD]

Originally Posted by Octo-puss

I got a little problem I can't seem to solve.
Whenever I got a movie playing or paused - doesn't matter - just as long as any is loaded, and I open another instance of player (MPC in my case, but it's not important), there is no audio on the 2nd movie. What am I doing wrong, or what should I look for in FFD audio decoder settings?

Try to set DefaultDirectSoundDevice on Options>>Playback>>Output>>Directshow audio

[fastplayer]

Originally Posted by Octo-puss

What am I doing wrong, or what should I look for in FFD audio decoder settings?

Uninstall, delete ffdshow's registry key (HKEY_CURRENT_USER\Software\GNU) and reinstall.
Could be that something in the "DirectShow control" part of ffdshow's audio decoder is messed up... and make sure you're media players are outputting audio via DirectSound and not waveOut or something else.

[STaRGaZeR]

Originally Posted by LoRd_MuldeR

When I enable deinterlace then the deinterlacing filter seem to switch on and off randomly!

The older build r2202 works good. This is with live MPEG-2 broadcast in DVBViewer...

Can you post a sample? Older revisions incorrectly marked progressive frames as interlaced, the newer ones don't.

[LoRd_MuldeR]

The problem is that is seems to happen randomly and with live broadcast. I will try to capture a clip that exhibits the problem...

EDIT: I got a video capture that can be used to reproduce the problem with MPC + ffdshow r2265. Uploading it now.