[Mp4-tech] MbLineIntraUpdate parameter

[behrooz hamidian]

Dear experts
  I am currently running some simulation using the JM.11 source code for H.264 codec.
  I need to encode a sequence such that in each frame a minimum number of macroblocks are coded in intra mode.I tried to use the parameter 
  "MbLineIntraUpdate" in the encoder config file for this purpose.This parameter must be set to a value in the interval [0,1].My initial guess was that this value should represents the percentage of the macroblocks coded in intra mode.
  My problem is that the encoder only mind this parameter when it is set to 1, and with "MbLineIntraUpdate=1" I got 22 intra coded macroblocks in each frame of a CIF file (which has 396 MBs per frame). 
  So the simulation results completely contradicts my initial guess.
  I am wondering if anyone could give me some information on the
  "MbLineIntraUpdate" parameter in encoder config file.
  thank you in advance ,
  Behrooz
Behrooz Hamidian 
Ph.D. Candidate 
School of Engineering Science 
Simon Fraser University 
Vancouver, Biritish Columbia, V5B 1S6
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