|
|
| Cyberman |
| Posted: May 7 2013, 07:13 PM |
 |
|
Advanced Member
Group: Members
Posts: 2035
Member No.: 3477
Joined: 3-April 03
|
I'm not sure how to better describe the problem in the title.
Here's the situation:
I've tried to clean up a video, everything looks fine in VirtualDub (see Screenshot: http://fredlarts.at/~cyberman/MPC_Video_Te...rig_cleaned.png - right picture is the cleaned one, left is original).
Obviously everything is a bit too smooth, but it's either that or lots of grain apparently...
In any case, once I save the new video and watch it with Media Player Classic (any version, though I currently use the Black Edition), the video looks bad.
As if the camera lens was filled with running lard.
My guess is that there is some sort of smoothing/deblocking process trying to enhance the video, but ruining it.
If I switch back to an older renderer (for example Video Mixing Renderer 9 (renderless)) the picture looks as intended. For a sample, try this: http://fredlarts.at/~cyberman/MPC_Video_Te...sample_divx.avi .
(Note: I've encoded to Divx for size reasons - the same effect would happen with Lagarith, but then the file would be 11MB in size.)
I'm not sure if it's really MPC that is to blame, or some DirectShow filter I somehow got into my system.
Anyone have an idea why this happens and how I could prevent it? Obviously I could just switch renderer, but apart from being bothersome, it's not really useful when giving the video to others.
--------------------
Matroska/MKV ? |
|
| dloneranger |
| Posted: May 7 2013, 07:29 PM |
|
|
Moderator
Group: Moderators
Posts: 2366
Member No.: 22158
Joined: 26-September 07
|
Looks fine to me
mpc shows
mpc avi source -> ffdshow video decoder -> evr custom presenter
--------------------
MultiAdjust JoinWav WavNormalize FFMPeg Input Plugin v1827 UnSharpMask
Windows7/8 Codec Chooser
All FccHandlers Stuff inc. Installers for acm codecs AAC, AC3, LameMp3 |
|
| Cyberman |
| Posted: May 8 2013, 09:12 PM |
|
|
Advanced Member
Group: Members
Posts: 2035
Member No.: 3477
Joined: 3-April 03
|
Hm. Then it might be something on my PC only. Still weird, but it's a start to look for something, thanks.
[edit] Hm. Can't figure out what the problem might be unless it's indeed MPC. If you've got the time - could you compare the video output in MPC and VirtualDub? It's better to notice on fullscreen - the VDub image is more grainy.
--------------------
Matroska/MKV ? |
|
| phaeron |
| Posted: May 13 2013, 09:22 PM |
|
|
Virtualdub Developer
Group: Administrator
Posts: 7773
Member No.: 61
Joined: 30-July 02
|
This smells like an issue in video playback options in the video driver, particularly as it changes depending on the renderer. For instance, it could be that the EVR is activating hardware accelerated decoding (DXVA) and in that case the video card is attempting to enhance the video. The effect looks like that of a noise reduction (bilateral) filter.
|
|
