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Old 10th November 2009, 01:00   #3  |  Link
nurbs
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Join Date: Dec 2005
Posts: 1,460
Quote:
Originally Posted by dbfs View Post
To the point, it is not smart to use a bitrate of 1200kbps for a full resolution encoding of a dvd from native dvd 480P DVD to 848x480P, because the bitrate is way to low for a high resolution encoding, it will result in a video with a lot of artifacts.
You can't say that. It depends on the codec you use and the complexity of the source video. If you are encoding cartoons (e.g. The Simpsons) to H.264 for instance you are probably just wasting space at that bitrate.

Quote:
My question to you is:'How can I make the best decision and make a good balance between bitrate and resolution for standard def video's, and what is yours balance between resolution and bitrate?
You don't. You pick a resolution and then you let the encoder decide for you. x264 for instance has a constant quality mode (CRF). You pick a number and your encodes will come out with more or less the same quality, but you won't know the bitrate beforehand.
Other codecs have a constant quantizer mode which can also be used for that purpose, although it's probably less optimal. Alternatively you can do a compression check by encoding say 10% of your source at a certain quantizer and then do a 2-pass encode with the resulting bitrate.
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