Directshowsource forcibily outputs 25fps, 23.98fps source

**rmm21** · 17 Jul 2007, 10:07 PM

I should of mentioned that I also tried virtualdubmod, feeding it several vob and avi files(at 23.98fps originally), and was also given forced output of 25fps. I also checked Haali Media Splitter
under options and output to see if "force fake 25fps" was enabled and it wasn't.
I can't imagine what would of changed just within the last few days to prevent the same successful 23.98fps file outputs i've had for the past several weeks using MeGui predominately.
Jerrilyn.

**admin** · 17 Jul 2007, 11:14 PM

Are you using ffdshow to decode your input videos? Perhaps check to see if the decoder filter's settings remain the same as before, and just to see that you are in fact still using the same decoder filters and some other (incompatible) filter hasn't taken over.

Seems a bit strange for it to happen, when I assume playback of 23.976 video isn't being affected.

**rmm21** · 18 Jul 2007, 03:46 AM

Hi Admin, i'm using ffdshow to decode everything. I might try the latest MMX version of ffdshow to see if that can clear this problem of mine and do a brand new reinstall of everything(related to audio and video that is ie:Avisynth, MeGui, Mkvtoolnix, etc...). Crossing my fingers.
Do you know of a "force 25fps" option in ffdshow? It was mentioned by someone in another forum. I know Haali Media Splitter has one but I don't see it in ffdshow.

Jerrilyn.

P.S. Admin, this forum has some of the most imaginative smilies around.

Cute.

**admin** · 18 Jul 2007, 04:13 PM

Don't know if it's related or not, but on one of my computers now, when I play 23.976 movies and I turn on ffdshow's OSD to show the movie's FPS, it shows 25 FPS when played back in Media Player Classic. It shows the correct 23.967 FPS in Windows Media Player though, and the same file plays perfectly (@ 23.976 FPS) on my other computer using MPC.

I'm investigating ...

**rmm21** · 18 Jul 2007, 08:27 PM

Here's an update: I unstalled every multimedia related program on my computer(Avisynth, FFdshow, Haali Media Splitter, MeGui, Vobsub, CCCP remnants, latest XVID codec, mkvtoolnix, etc...), cleaned temp and registries, defragmented hard drive, and re-downloaded the programs I needed: Avisynth257, MeGui w/.net 2, Mkvtoolnix, Mkvextractgui, and Gabest
mkv splitter.

No FFdshow or Haalimedia Splitter anywhere on my computer.

I used Mkvextractgui to recreate the same files I needed to encode(that H264 file I am trying to convert to XVID) just in case of some weird anomaly in the source which, just to recall, produced a perfect 23.98fps XVID last week at the same exact duration as the original.

Installed MeGui, created new avs, let it go for about an hour using XVID profile 30%, and yahooooo, was given, from a 23.98fps H264 source file, a shiny new f-ing 25fps XVID file at 22.28minutes in duration(original was 23.26minutes long FYI).

I think when I say this sucks it's hardly touching what I feel.
I would say that my computer has a big problem with Directshow which is for some reason dropping frames.

Jerrilyn.

Hi Admin, i'm curious if there was a priority update from microsoft that I automatically downloaded that caused this. I normally just use "Express" when I use Windows Update so I have to wonder. Did you update recently too?

**admin** · 18 Jul 2007, 10:28 PM

It looks like both of my computers are affected by the same problem, but it does not extend to encoding H.264 files, but it does affect XviD encodins. I converted a MP4 H.264 file to XviD with the ffdshow OSD option turned on (this encodes the FPS OSD into the video it self) - the funny thing is that when playing back the resulting XviD file, the burnt-in OSD shows the correct framerate 23.976, but the actual file is 25 FPS. Weird isn't it?

I managed to fix my playback problem at least, where MPC shows 25 FPS and WMP shows 23.976 FPS by using Haali as my splitter instead of MPC's internal splitter. I can re-create the problem by enabling MPC's internal MP4 splitter (mine was a MP4 H.264 file).

And yes, both of my computers have all the latest Windows Update updates, don't know if it is related or not.

**admin** · 18 Jul 2007, 10:33 PM

I tested encoding XviD in VirtualDubMod using the same AviSynth script, seems to give the correct FPS output ...

**admin** · 18 Jul 2007, 10:48 PM

I've managed to fix the problem. I went into C:\Program Files\megui\tools\xvid_encraw , saw that there were two files "xvid_encraw.exe.backup" and "xvidcore.dll.backup", and the current files seemed to have been updated recently. I restored the backups, and now MeGUI encodes 23.976 XviD files as it should.

Looks like a MeGUI update might be the cause of the problem - the update xvid_encraw files seems to be problematic.

**admin** · 18 Jul 2007, 10:58 PM

I uninstalled MeGUI and re-installed it, and then ran the update - it updated xvid_encrawl with the "broken" version that always produces 25 fps. This time I replaced xvid_encraw.exe (248 KB) with my backup file (424 KB) (did not replace "xvidcore.dll" with the backup version), and encodings came out fine again at the right FPS.

I've attached the xvid_encraw.exe backup file that seem to work.

MeGUI updates, I think, come from the files stored here:

403 Forbidden

http://megui.org/auto/

The xvid_encraw package on the above location contains the "broken" version.

Attached Files

xvid_encraw.rar (130.4 KB, 207 views)

**rmm21** · 19 Jul 2007, 04:26 AM

Hi Admin, thanks for the attachment. I'll see if that works. I just restored my OS and updated about 100 files from Windows Update. Thanks for your help.

Let you know soon how things turn out.

Jerrilyn.

**rmm21** · 19 Jul 2007, 10:18 AM

Admin, it..............WORKS!!!!!!!!

Thank you so much. I can't be any happier.

Jerrilyn.

P.S. I'll let you know how my encodes I do overnight turn out.

Directshowsource forcibily outputs 25fps, 23.98fps source

Directshowsource forcibily outputs 25fps, 23.98fps source

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