ffmpeg source update for sep 09

source/patched-ffmpeg-mt/libavcodec/x86/vp56_arith.h

 /**
  * VP5 and VP6 compatible video decoder (arith decoder)
  *
  * Copyright (C) 2006  Aurelien Jacobs <aurel@gnuage.org>
  * Copyright (C) 2010  Eli Friedman
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ skipping 13 matching lines @@
 #ifndef AVCODEC_X86_VP56_ARITH_H
 #define AVCODEC_X86_VP56_ARITH_H
 
 #if HAVE_FAST_CMOV
 #define vp56_rac_get_prob vp56_rac_get_prob
 static av_always_inline int vp56_rac_get_prob(VP56RangeCoder *c, uint8_t prob)
 {
     unsigned int code_word = vp56_rac_renorm(c);
     unsigned int high = c->high;
     unsigned int low = 1 + (((high - 1) * prob) >> 8);
-    unsigned int low_shift = low << 8;
+    unsigned int low_shift = low << 16;
     int bit = 0;
 
     __asm__(
         "subl  %4, %1      \n\t"
         "subl  %3, %2      \n\t"
         "leal (%2, %3), %3 \n\t"
         "setae %b0         \n\t"
         "cmovb %4, %1      \n\t"
         "cmovb %3, %2      \n\t"
         : "+q"(bit), "+r"(high), "+r"(code_word), "+r"(low_shift)
         : "r"(low)
     );
 
     c->high      = high;
     c->code_word = code_word;
     return bit;
 }
 #endif
 
 #endif /* AVCODEC_X86_VP56_ARITH_H */