[XviD-devel] DivX5.03 Nth Pass encoding

Cami xvid-devel@xvid.org
Mon, 27 Jan 2003 08:35:20 +0200


Looking through the divx 5.03 changelog:

::::
.. Nth PassT encoding. Another new addition to the rate control arsenal, Nth PassT encoding takes advantage of information
available from previous analysis (or analyses) of the video sequence. Nth Pass encoding uses information garnered from previous
passes through the video sequence, which can improve quality with each pass. There are four main steps to Nth Pass encoding:
  1.. Analysis (the first pass)
  2.. Map generation (where the results of analyses are processed)
  3.. Strategy generation (strategist examines map of the video sequence and creates a strategy that will best achieve the three VBV
RC requirements)
  4.. In-loop nth pass rate control (uses information from the map and strategy to effect rate control that best fulfills the three
requirements)
::::

Can anyone tell me if xvid having such a feature will
improve image quality? or is it not nessasary / wont make any difference?

++C