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diff --git a/ffmpeg1/libavcodec/ac3dec_data.c b/ffmpeg1/libavcodec/ac3dec_data.c
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+++ b/ffmpeg1/libavcodec/ac3dec_data.c
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+/*
+ * AC-3 and E-AC-3 decoder tables
+ * Copyright (c) 2007 Bartlomiej Wolowiec <bartek.wolowiec@gmail.com>
+ *
+ * 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.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Tables taken directly from the AC-3 spec.
+ */
+
+#include "ac3dec_data.h"
+#include "ac3.h"
+
+/**
+ * Table used to ungroup 3 values stored in 5 bits.
+ * Used by bap=1 mantissas and GAQ.
+ * ff_ac3_ungroup_3_in_5_bits_tab[i] = { i/9, (i%9)/3, (i%9)%3 }
+ */
+const uint8_t ff_ac3_ungroup_3_in_5_bits_tab[32][3] = {
+    { 0, 0, 0 }, { 0, 0, 1 }, { 0, 0, 2 }, { 0, 1, 0 },
+    { 0, 1, 1 }, { 0, 1, 2 }, { 0, 2, 0 }, { 0, 2, 1 },
+    { 0, 2, 2 }, { 1, 0, 0 }, { 1, 0, 1 }, { 1, 0, 2 },
+    { 1, 1, 0 }, { 1, 1, 1 }, { 1, 1, 2 }, { 1, 2, 0 },
+    { 1, 2, 1 }, { 1, 2, 2 }, { 2, 0, 0 }, { 2, 0, 1 },
+    { 2, 0, 2 }, { 2, 1, 0 }, { 2, 1, 1 }, { 2, 1, 2 },
+    { 2, 2, 0 }, { 2, 2, 1 }, { 2, 2, 2 }, { 3, 0, 0 },
+    { 3, 0, 1 }, { 3, 0, 2 }, { 3, 1, 0 }, { 3, 1, 1 }
+};
+
+const uint8_t ff_eac3_hebap_tab[64] = {
+    0, 1, 2, 3, 4, 5, 6, 7, 8, 8,
+    8, 8, 9, 9, 9, 10, 10, 10, 10, 11,
+    11, 11, 11, 12, 12, 12, 12, 13, 13, 13,
+    13, 14, 14, 14, 14, 15, 15, 15, 15, 16,
+    16, 16, 16, 17, 17, 17, 17, 18, 18, 18,
+    18, 18, 18, 18, 18, 19, 19, 19, 19, 19,
+    19, 19, 19, 19,
+};
+
+/**
+ * Table E2.15 Default Spectral Extension Banding Structure
+ */
+const uint8_t ff_eac3_default_spx_band_struct[17] =
+{ 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 };