[Lame-dev] [ lame-Bugs-915113 ] decoder problem; was: HIP and mpglib don't check bad values

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Bugs item #915113, was opened at 2004-03-12 16:58
Message generated for change (Comment added) made by robert
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Category: None
Group: None
Status: Open
>Resolution: Accepted
Priority: 5
Private: No
Submitted By: Goran Markovic (gmarkovic)
>Assigned to: Robert Hegemann (robert)
Summary: decoder problem; was: HIP and mpglib don't check bad values

Initial Comment:
If balloc[ch][sb] is 15 in Layer I than it is invalid.
(balloc indicates the number of bits used to code the 
samples in subband)

If scalefactor[ch][sb] is 63 in Layer I/II than it is invalid.

This can easily be done. Whenever they are red from 
input bitstream their value should be checked.
Decoder (HIP and mpglib) doesn't check for this values.

There are also other possible invalid values in Layer I/II, 
but I don't know how they can be easily checked.

Of course if bitstream is correct this has no efect.




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>Comment By: Robert Hegemann (robert)
Date: 2009-02-28 12:44

Message:
I will investigate this for 3.99

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Comment By: Robert Hegemann (robert)
Date: 2008-06-29 10:56

Message:
Logged In: YES 
user_id=1106
Originator: NO

This is a bug in mpg123 decoder, not a feature request.

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