[Mp4-tech] H.264/CAVLC encoding/level_prefix/

[Thammi_Reddy]

Hi all,
Please explain me two issues in CAVLC encoding/decoding.
There is a sequence like         -3(DC
value),1,0,-1,4,5,0,0,0,0,0,0,0,0,0,0,0 
TrailingOnes= 0 as per the definition.
For levels                   5,4,-1,0,1   encoding is done. After these
steps, suffixLength=2   
levelCode = 5 = 2power(suffixLength i.e 2)*level_prefix + 2'b11(suffix
value)   
I am unable to find level_prefix for the level  "-3".    
2. Is there some criteria in giving input levels to the CAVLC encoder/
will random sequence be encoded and decoded?
Thank you.
Thammi Reddy
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