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| MrSmite |
| Posted: Sep 17 2012, 06:32 AM |
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Advanced Member
Group: Members
Posts: 102
Member No.: 25620
Joined: 30-May 09
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I'm having an issue with VirtualDub 1.9.11 and the MKV input plugin. Every MKV that I open ends up having the first frame solid green. This green frame also ends up in the rendered output.
According to the file info, it is using FFDshow (AVC1) to decode and I don't get this green frame when watching the original MKV in MPC HomeCinema which also uses the FFDshow decoder.
Any ideas?
Note:
If I drag the time slider in VirtualDub and scroll it back and forth a couple times, when I press the "go to beginning" button the green frame disappears from the VirtualDub output window but it still appears in the rendered AVI. |
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| Abrazo |
| Posted: Sep 18 2012, 06:39 PM |
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Advanced Member
Group: Members
Posts: 775
Member No.: 28995
Joined: 5-November 10
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In VirtualDub you can also use the FFInputdriver plugin to open MKV-files (except when they have multchannel audio):
http://code.google.com/p/ffinputdriver/downloads/list
The first frame(s) displayed as a solid green image is probably due to an actual shortcoming in the Matroska inputdriver plugin.
Via a delete/cut of the first frame(s) in the original file via VirtualDub it should be possible to avoid this problem in the output file. |
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| MrSmite |
| Posted: Sep 19 2012, 10:14 AM |
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Advanced Member
Group: Members
Posts: 102
Member No.: 25620
Joined: 30-May 09
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| QUOTE (Abrazo @ Sep 18 2012, 06:39 PM) | In VirtualDub you can also use the FFInputdriver plugin to open MKV-files (except when they have multchannel audio):
http://code.google.com/p/ffinputdriver/downloads/list
The first frame(s) displayed as a solid green image is probably due to an actual shortcoming in the Matroska inputdriver plugin.
Via a delete/cut of the first frame(s) in the original file via VirtualDub it should be possible to avoid this problem in the output file. |
@Abrazo
I had tried that plugin before but it failed. I didn't know why because all it said is "unable to set filename" but now that you mention it, the video has multichannel audio.
I ended up adding a FadeFX filter and chose "blackout frames 0 to 1" which worked just fine. I didn't want to cut the video because VirtualDub couldn't handle the audio track so I needed to keep the video at the original length for when I demuxed the DTS audio and converted it. |
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| ale5000 |
| Posted: Sep 19 2012, 10:36 AM |
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Advanced Member
Group: Members
Posts: 1114
Member No.: 22180
Joined: 30-September 07
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The green frame problem isn't caused by input plugins but it is caused by some VFW decoders.
For example if you have an mkv with H.264 video: Using ffdshow to decode H.264 you will see the first frame green instead if you use x264vfw you won't have the problem (but x264vfw doesn't support multithreading).
Try selecting ffdshow VFW configuration => Decoder => Codecs => VC-1 => wmv9
Note: ffdshow through VFW isn't exactly the same of ffdshow through DirectShow.
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