[SCM] libav/experimental: Simplify AC-3 critical band end calculation (correctly this time).

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 31f8c109836066fe34b03a15fa1fb19fea3d2cff
Author: Justin Ruggles <justin.ruggles at gmail.com>
Date:   Tue Nov 3 03:26:26 2009 +0000

    Simplify AC-3 critical band end calculation (correctly this time).
    
    Originally committed as revision 20438 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/ac3.c b/libavcodec/ac3.c
index 72312c7..20b3397 100644
--- a/libavcodec/ac3.c
+++ b/libavcodec/ac3.c
@@ -228,7 +228,7 @@ void ff_ac3_bit_alloc_calc_bap(int16_t *mask, int16_t *psd, int start, int end,
     band = bin_to_band_tab[start];
     do {
         int m = (FFMAX(mask[band] - snr_offset - floor, 0) & 0x1FE0) + floor;
-        int band_end = FFMIN(band_start_tab[band] + ff_ac3_critical_band_size_tab[band], end);
+        int band_end = FFMIN(band_start_tab[band+1], end);
         for (; bin < band_end; bin++) {
             int address = av_clip((psd[bin] - m) >> 5, 0, 63);
             bap[bin] = bap_tab[address];

-- 
Libav/FFmpeg packaging