Jerky playback with Tmpenc, But not with panasonic..

[mh2360]

I have converted the same Divx file with both Tmpgenc and the Panasonic stand-alone version, Tmpenc gives me an excellent picture, but with a slight jerkiness, Panasonic on the other hand gives me a beautifully smooth playback, but with the usual macro blocks... is this an interlace problem or something.. wtf? 8)

[bugster]

Make sure the TmpGenc template you use has the same fps setting as the original divx, otherwise the jerkyness you describe is one of the possible problems you may encounter.

[mh2360]

Nope fps is fine, its seems more noticable when then camera pans...

[bugster]

Ok, it could be an interlace problem as you suggest, try encoding a small test clip with vidoe arrange method (on the settings advanced tab) set as non-interlace and interlace to see if it fixes the problem. If this doesn't work, try a differnt field order (bottom field first or top field first)

[bbb]

With Tmpgenc, you have to choose the correct way to deinterlace your video. Ignore people who tell you that deinterlacing is unnecessary. In my experience, you almost always have to deinterlace. Furthermore, deinterlacing does not make your video look worse if done correctly.

Quick and dirty method for deinterlacing and for smooth panning: deinterlace with double (a.k.a. blend) and encode at 29.97fps for NTSC, 25 fps for PAL. This gets rid of the jitteriness in slow, long panning scenes. You may want to sharpen your video slightly to counteract the slight blurriness from the double deinterlacing.

If you are getting jitteriness throughout the whole video, change the field order.

[mh2360]

Changing the interlace option in Video/Decode mode to Non-interlace (the default value is interlace), seems to work ok. I though that properly encoded Divx files were Non-interlaced, i wonder how many people know that this is set to interlace by default on the SVCD templates, and are using them..

[ransjooman]

With Tmpgenc, you have to choose the correct way to deinterlace your video. Ignore people who tell you that deinterlacing is unnecessary. In my experience, you almost always have to deinterlace. Furthermore, deinterlacing does not make your video look worse if done correctly.

Quick and dirty method for deinterlacing and for smooth panning: deinterlace with double (a.k.a. blend) and encode at 29.97fps for NTSC, 25 fps for PAL. This gets rid of the jitteriness in slow, long panning scenes. You may want to sharpen your video slightly to counteract the slight blurriness from the double deinterlacing.

If you are getting jitteriness throughout the whole video, change the field order.

Could you describe the deinterlace with double(aka blend) a bit more precies because it confuses me a bit bbb.
and the sharpeningthing,is that a filtersetting in Tmpg?
please be a bit more specific,cuz those jitterness is the only flaw I have to get rid of,furthermore it is perfect.
thx in advance

[Anonymous65]

If you have the wrong field order, deinterlacing the video will always solve the problem. But, if you don't want to deinterlace, simple swap the field order during encoding and the motion artifacts will be gone.

[mh2360]

Got it !!! It was the Divx 5 codec from the Nemo pack all along, for anyone else experiencing jerkiness try configuring the codec for highest quality setting, and smooth playback, it worked for me...

I think by default, quality is only set to 50% and "smooth playback" is switched off...

EDIT: BTW the G400 filter was part of the problem too, dont install unless you need it!

[bbb]

Why didn't you tell us that the divx played jerkily even before you encoded with an encoder? That would have narrowed down the problems to either the encoding source or the drivers immediately.
Oh my goodness.

[mh2360]

And even after all that... it turned out that it was my Tmpgenc VFAPI settings

Mine are now as follows:

AVI2(OpenDML)File Reader Set to 3
AVI VFW Compatibilty Reader Set to 2
DirectShow Multimedia File Reader Set to 1

Everything else set to 0

Dont ask me to explain, it just works...

So try it...

[CyeN]

And even after all that... it turned out that it was my Tmpgenc VFAPI settings

Mine are now as follows:

AVI2(OpenDML)File Reader Set to 3
AVI VFW Compatibilty Reader Set to 2
DirectShow Multimedia File Reader Set to 1

Everything else set to 0

Dont ask me to explain, it just works...

So try it...

I had this exact problem. Anything I encoded to NTSC Film 23.976 was jerky as hell. It drove me absolutely insane. And just as i figured it out, I found this posting. Putting the AVI2(OpenDML) to 3 and lowering my directshow to 0 fixed my problem totally.

Now I have excellent TMPGenc MPGs again.

Try this if you have this problem.