Capture software, OS drops frames in VirtualDub?
Hi, I'm new to this forum so I'll try to do my best here. Since last week i've been getting problems with VirtualDub on my Windows 10 Machine. On Windows 10, VirtualDub keeps adding and dropping frames constantly, making my videos very freezed sometimes (not that much freezed but it's still frustrating). I knew that it was a problem with VDub but even changing the software it didn't help me. So I got my Old Windows XP HDD and putted it into my PC and installed VDub, it got back to normal BUT, after 15-20 minutes of recording with Lagarith Lossless Codec, it starts to lose sync. I really need to use a Lossless codec or uncompressed video since I use QTGMC to deinterlace my VHS videos. Can someone help me with those problems?
PC: MB: Asus H81M Chipset RAM: Kingston 8 Gb DDR3 1333 Processor: Intel Pentium G3258 3.2 GHz Video Card: nVidia GeForce 9500 GT 1GB OS: Windows 10 and Windows XP (Separate HDDs) HDDs: Seagate 500Gb (Win10), Samsung 160Gb (WinXp), Western Digital My Passport 2 Tb (Storage) Capture card: Honestech MY VIDBOX NW03 |
Welcome to digitalfaq. :salute:
Thanks for the technical info bu you omitted a few important things. Which version of Virtualdub? What VCR are you using? External TBC, if any? I'm afraid the Honestch is a very poor choice, and doesn't help matters at all. Have you seen the recent VirtualDub capture guide? The thread starts here: http://www.digitalfaq.com/forum/vide...-settings.html. In particular, capture timing and frame sync issues are discussed in section #5, titled 5: Capture (top menu). Quote:
For YUY2 capture-time compression you might try a slightly faster compressor (huffyuv), as Lagarith is a tad on the side of higher CPU usage with some system setups. I use huffyuv for YUY2 capture, but I use Lagarith for post-processing. Lagarith capture is a bit slower on my ancient AMD capture PC but it excels over huffyuv for post work and can compress YV12, which huffyuv can't compress. |
A lack of TBC is likely causing all the dropped frames issues. That's all it is.
VirtualDub settings are unlikely. The Honestechh capture cards are junk, but still unlikely at fault. VHS signals are dirty chaos, and a TBC fixes that. |
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I live in Brazil so we use PAL-M (525 lines 60hz PAL color Signal) and the VCR is a Gradiente but it's just a rebadged JVC 7 head Hi-Fi VCR. No TBC because it's hard to find a cheap/old TBC with both NTSC and PAL-M Signal sine I need to both. The Capture card was a gift from my uncle who didn't know that it was a Capture Card. I deinterlace my videos with QTGMC because it Deinterlaces properly and it makes the source 60fps for home recordings. Watch this video and you'll know the result: https://www.youtube.com/watch?v=uzlcoWWdHoA |
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I understand the cost factor (a USB capture card for Win10 such as a VC500 multiformat card costs less than $30 USD), buit one does what one can with what's available. If you try some of the suggested timing option settings in VirtualDub as suggested in the settings thread you might see a sync improvement and fewer frame drops/insertions.
The UTube videos that you linked to are not interlaced sources. They're telecined movie sources, which should be inverse telecined, not deinterlaced. I don't understand the 720p/60 notation. YouTube will mount 60fps video but not as anamorphic video, so you or they must also have resized it to 720x540 for 4:3 square pixel or 720x400 for square pixel 16:9, or some other square pixel frame size. |
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But my focus isn't movies or TV shows. My focus is on home recordings from camcorders. |
The movie tapes show elements of field-blend deinterlacing, but I'm not sure who would be responsible for that. If you have "interlaced" issues of movie film, you must have some oddball tape editions, but that's not unusual. The only home video I think we've seen sampled so far is your YouTube link, and that one is badly deinterlaced with many resizing artifacts, so it's about par for the typical YouTube video. Where the aliasing and twitter come from can only be explained by poor deinterlace, as upscaling progressive video won't produce those effects. So far, the last two links don't show any of the dropped/inserted frames or freezing you mentioned, just mainly no post-processing at home and a lot of typically bad website processing.
The 1280x720p videos are invalid for BluRay but par for square-pixel web video with side pillars added and half the frames thrown away to get 29.97 fps. This is OK for web video, which doesn't display or re-encode very well to begin with and is a low quality standard by necessity, but it doesn't do anything for viewing home videos at home on TV. |
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But TBC is almost impossible to avoid. So my advice is always: buy it, use it, resell it. A good TBC will hold its value. Quote:
The capture card is not as big an issue as the VCR here. |
Panasonic released some of their "good for passthrough" DVD recorders in Brazil with PAL-M support. A Brazilian guy on VideoHelp picked up a DMR-ES10 and I think he provided samples, if you feel like searching up the thread.
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