1 files changed, 82 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/mpegaudiodata.h b/media/ffvpx/libavcodec/mpegaudiodata.h
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index 0000000000..fbad67a0b3
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+++ b/media/ffvpx/libavcodec/mpegaudiodata.h
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+/*
+ * MPEG Audio common tables
+ * copyright (c) 2002 Fabrice Bellard
+ *
+ * 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
+ * mpeg audio layer common tables.
+ */
+
+#ifndef AVCODEC_MPEGAUDIODATA_H
+#define AVCODEC_MPEGAUDIODATA_H
+
+#include <stdint.h>
+
+#include "config.h"
+
+#include "vlc.h"
+
+#define MODE_EXT_MS_STEREO 2
+#define MODE_EXT_I_STEREO  1
+
+extern const uint16_t ff_mpa_bitrate_tab[2][3][15];
+extern const uint16_t ff_mpa_freq_tab[3];
+extern const int ff_mpa_sblimit_table[5];
+extern const int ff_mpa_quant_steps[17];
+extern const int ff_mpa_quant_bits[17];
+extern const unsigned char * const ff_mpa_alloc_tables[5];
+
+#define TABLE_4_3_SIZE ((8191 + 16)*4)
+#if CONFIG_HARDCODED_TABLES
+extern const int8_t   ff_table_4_3_exp  [TABLE_4_3_SIZE];
+extern const uint32_t ff_table_4_3_value[TABLE_4_3_SIZE];
+#else
+extern int8_t   ff_table_4_3_exp  [TABLE_4_3_SIZE];
+extern uint32_t ff_table_4_3_value[TABLE_4_3_SIZE];
+#endif
+
+/* VLCs for decoding layer 3 huffman tables */
+extern const VLCElem *ff_huff_vlc[16];
+extern VLC ff_huff_quad_vlc[2];
+
+/* layer3 scale factor size */
+extern const uint8_t ff_slen_table[2][16];
+/* number of lsf scale factors for a given size */
+extern const uint8_t ff_lsf_nsf_table[6][3][4];
+extern const uint8_t ff_mpa_huff_data[32][2];
+
+/* band size tables */
+extern const uint8_t ff_band_size_long[9][22];
+extern const uint8_t ff_band_size_short[9][13];
+/* computed from ff_band_size_long */
+extern uint16_t ff_band_index_long[9][23];
+
+extern int16_t *const ff_division_tabs[4];
+
+/* lower 2 bits: modulo 3, higher bits: shift */
+extern uint16_t ff_scale_factor_modshift[64];
+
+extern const uint8_t ff_mpa_pretab[2][22];
+
+/* Initialize tables shared between the fixed and
+ * floating point MPEG audio decoders. */
+void ff_mpegaudiodec_common_init_static(void);
+
+#endif /* AVCODEC_MPEGAUDIODATA_H */