[Mp4-tech] [Mp-4][H.264]te(v) decoding problem in JM software

Xu Ke kexu ee.cuhk.edu.hk
Mon Apr 25 23:11:25 EDT 2005


Dear experts,
When I am reading the trace file dumpped by the JM94 software,I am quite confused by the following decoding process:
@25654  mb_type                 011  (  2)	
@25657  ref_idx_l0              1  (  1) 	
@25658  ref_idx_l0              0  (  0)  
@25659  mvd_l0                  1  (  0)
@25660  mvd_l0                  1  (  0)
@25661  mvd_l0                  011  ( -1)
@25664  mvd_l0                  1  (  0)
@25665  coded_block_pattern     1  (  0) 
For ref_idx_l0,which is coded as te(v),if bitstream is"1",the output syntax value is also "1". However,as in the standard,that's should be "0" instead.(We can refer to Gary Sullivan's previous email "In other words, the value 0 is coded as 1 and the value 1 is coded as 0").Is this a bug in JM software94? Would anybody be kind to make it clear to me?
Many thanks!!
Best regards,
XU Ke


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