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anon_uno
Member
Joined: 12 May 2001
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Hi all,
I recently tried to convert a clip from Video to VCD.
The film clip was on Model Boating (so the view pans pretty fast to try to follow the action). After capturing the the footage on AVI file and converted it to VCD format. I view the VCD on TV and noticed that there were many vertical little rectangles on the bottom of my clip (the top half of the clip is a sky and and bottom half of the clip is water - a fair bit of ripples). My question is if the little rectangles were due to the fact that I have reached the limit of VCD format? or if I have done something wrong through the convertion process? or If there's something I can do (like run a filter or something onthe clip before burning). I used VirtualDub and TMPGEnc. Thanks.
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CordeliaII
Member
Joined: 01 Jul 2001
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I had exactly the same probelm with a capture of a program about sharks. I'm pretty sure it was just the limits of the vcd standard. It looked great when converted to mpeg2 or even mpeg1 at higher, non-standard bitrate.
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ktnwin
Member
Joined: 01 May 2001
Location: USA
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Oh yes, rippled water and rains are hard for MPEG-1 to handle, the rectangles you saw are called macro blocks and it's MPEG-1 limitations.
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anon_uno
Member
Joined: 12 May 2001
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Thank you all for the feed back and confirmation. Cheers!
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Cart Wheel
Member
Joined: 20 Feb 2001
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Enabling the "Soften block noise" option on TMPGEnc's Quantize matrix tab might help a bit. So could running noise reduction filters (e.g. Temporal Smoother and Smart Smoother) and/or capturing in a higher resolution, adaptively deinterlacing (if necessary), and resizing.
-Cart
http://www.geocities.com/lukesvideo/index.html
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Xitanium
Member
Joined: 26 May 2001
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if ur player can handle it i reccomend bumping up the bitrate, this will help ALOT.
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