Quality issue query

[socrates]

Hi,

Just a quick question. If I have a avc video file with constant bit rate of 1500, does it make positive quality change if I increase the bit rate?
Thanks

[johns0]

Nope,increasing the bitrate on a re-encode will never increase quality.Filtering might help issues.

[Noahtuck]

It's like taking a 720x480 dvd video and thinking that re-encoding it to 1920x1080 will make it HD.

[jagabo]

Take a wrinkle free piece of aluminum foil (uncompressed video). Scrunch it up into a 1 inch ball (compress to 1500 kbps). Open it up flat (uncompressed video). Note how wrinkled it is. Scrunch it up into a 2 inch ball (recompress to 3000 kbps). Open it up again (uncompressed video again). Is it more wrinkled or less?

[hello_hello]

The scrunched up aluminium foil analogy.... that's one I've not heard before.

[johns0]

So if i re-encode a video i will see wrinkles?

[socrates]

ok...thanks everyone....