ffmpeg source update for sep 09

source/patched-ffmpeg-mt/libavcodec/x86/fft_3dn2.c

 /*
  * FFT/MDCT transform with Extended 3DNow! optimizations
  * Copyright (c) 2006-2008 Zuxy MENG Jie, Loren Merritt
  *
  * 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
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
@@ skipping 38 matching lines @@
     ff_fft_dispatch_interleave_3dn2(z, s->nbits);
     __asm__ volatile("femms");
     if(n <= 8)
         for(i=0; i<n; i+=2)
             FFSWAP(FFTSample, z[i].im, z[i+1].re);
 }
 
 void ff_imdct_half_3dn2(FFTContext *s, FFTSample *output, const FFTSample *input)
 {
     x86_reg j, k;
-    long n = 1 << s->mdct_bits;
+    long n = s->mdct_size;
     long n2 = n >> 1;
     long n4 = n >> 2;
     long n8 = n >> 3;
     const uint16_t *revtab = s->revtab;
     const FFTSample *tcos = s->tcos;
     const FFTSample *tsin = s->tsin;
     const FFTSample *in1, *in2;
     FFTComplex *z = (FFTComplex *)output;
 
     /* pre rotation */
@@ skipping 70 matching lines @@
         :"+r"(j), "+r"(k)
         :"r"(z+n8), "r"(tcos+n8), "r"(tsin+n8)
         :"memory"
     );
     __asm__ volatile("femms");
 }
 
 void ff_imdct_calc_3dn2(FFTContext *s, FFTSample *output, const FFTSample *input)
 {
     x86_reg j, k;
-    long n = 1 << s->mdct_bits;
+    long n = s->mdct_size;
     long n4 = n >> 2;
 
     ff_imdct_half_3dn2(s, output+n4, input);
 
     j = -n;
     k = n-8;
     __asm__ volatile(
         "movq %4, %%mm7 \n"
         "1: \n"
         PSWAPD((%2,%1), %%mm0)
         PSWAPD((%3,%0), %%mm1)
         "pxor    %%mm7, %%mm0 \n"
         "movq    %%mm1, (%3,%1) \n"
         "movq    %%mm0, (%2,%0) \n"
         "sub $8, %1 \n"
         "add $8, %0 \n"
         "jl 1b \n"
         :"+r"(j), "+r"(k)
         :"r"(output+n4), "r"(output+n4*3),
          "m"(*m1m1)
     );
     __asm__ volatile("femms");
 }