Possible bug in vlc
Christophe Massiot
massiot at via.ecp.fr
Wed Jan 9 00:08:36 CET 2002
À (At) 13:44 -0500 8/01/02, Thomas L. Wood écrivait (wrote) :
> I've been working with vlc-0.2.91 & vlc-0.2.92 as a client to
>MPEG-2 Transport stream. The problem came about when
>vlc decoded the quantization matrix extension message. It
>appears a portion of the code in function QuantMatrixExtension
>was repeated incorrectly.
>
> In file vpar_headers.c (v 1.2.2.3) line 1059 seems to be a duplication of
>the intent of line 1048. When the second set of lines were
>commented out, the video (slice 1 of the I-frame) was rendered
>correctly. The effect of the error was to consume part of the code
>word that defined slice 1 of the I-frame that follows the Quant
>extension message.
It's my fault, and you're all right - I guess you probably have spent
many hours on this because it is highly non-trivial to detect, sorry
for that bug Thomas :(.
--
Christophe Massiot.
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