I have a straight forward, but important question:
Let's say my camcorder outputs to mpg 2 at 8mb bitrate.
I capture the footage, add transitions and tweak colors
and then render right back to mpg 2 with the same bit rate.
Have I lost any quality?
Thank you for your answers.
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Last edited by R Man; 17th Nov 2011 at 12:26. Reason: Typo
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Yes. You would have to encode at a higher bitrate to have close to the same quality. Most all codecs are lossy and the quality deteriorates when re-encoding. Some codecs are lossless, like HuffyUV or Lagarith. But the files are huge.
But try a short encode with representative clip from your video. Use the same bitrate and judge for yourself. The quality loss may not be that noticeable.
And welcome to our forums. -
Excellent response redwudz
My add is if this MPeg2 video is 8 bit standard def, then the recode loss may be worth it if the levels were way off. Save the original file for future technology.Recommends: Kiva.org - Loans that change lives.
http://www.kiva.org/about -
I would say any loss would be theoretical, not visible. Mpeg2 has very light compression, and is not considered a compressed format like WMV or H.264.
But the policy wonks are going to bang me over the head anyway.
So like RedBudz said, make a copy and try to judge for yourself.
Oops, I guess "RedBudz" was a freudian slip. I meant RedWudz,sorry. -
MPeg2 is light to heavy compressed. Re-encode has loss. Judge for yourself.
Last edited by edDV; 17th Nov 2011 at 22:21.
Recommends: Kiva.org - Loans that change lives.
http://www.kiva.org/about -
Recommends: Kiva.org - Loans that change lives.
http://www.kiva.org/about -
You know, the thing is, the color editing you did could have caused a loss in quality too. Are you an expert colorist? Hahaha, no doubt you're broken all the rules there too.
So if you do a no-no, but nobody notices, did it really happen? Or was that your "intent"? Nobody knows.
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