X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fmpegaudiotab.h;h=c82c1b9b7a5d8db60049114472766111a20a6ca4;hb=9686df2be543b740ec71e6ef633f312b8592813f;hp=41fb0fdbdd9da06e3d95a42da2dc386718a6f56f;hpb=ff4ec49e648bead601b3b8c618f6d19f3548d368;p=ffmpeg diff --git a/libavcodec/mpegaudiotab.h b/libavcodec/mpegaudiotab.h index 41fb0fdbdd9..c82c1b9b7a5 100644 --- a/libavcodec/mpegaudiotab.h +++ b/libavcodec/mpegaudiotab.h @@ -1,24 +1,49 @@ /* * mpeg audio layer 2 tables. Most of them come from the mpeg audio * specification. - * + * * Copyright (c) 2000, 2001 Fabrice Bellard. * - * The licence of this code is contained in file LICENCE found in the - * same archive + * 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 mpegaudiotab.h + * mpeg audio layer 2 tables. + * Most of them come from the mpeg audio specification. */ +#ifndef AVCODEC_MPEGAUDIOTAB_H +#define AVCODEC_MPEGAUDIOTAB_H + +#include +#include "mpegaudio.h" + #define SQRT2 1.41421356237309514547 static const int costab32[30] = { FIX(0.54119610014619701222), FIX(1.3065629648763763537), - + FIX(0.50979557910415917998), FIX(2.5629154477415054814), FIX(0.89997622313641556513), FIX(0.60134488693504528634), - + FIX(0.5024192861881556782), FIX(5.1011486186891552563), FIX(0.78815462345125020249), @@ -27,7 +52,7 @@ static const int costab32[30] = { FIX(1.0606776859903470633), FIX(1.7224470982383341955), FIX(0.52249861493968885462), - + FIX(10.19000812354803287), FIX(0.674808341455005678), FIX(1.1694399334328846596), @@ -54,13 +79,13 @@ static const int bitinv32[32] = { }; -static INT16 filter_bank[512]; +static int16_t filter_bank[512]; static int scale_factor_table[64]; #ifdef USE_FLOATS static float scale_factor_inv_table[64]; #else -static INT8 scale_factor_shift[64]; +static int8_t scale_factor_shift[64]; static unsigned short scale_factor_mult[64]; #endif static unsigned char scale_diff_table[128]; @@ -69,13 +94,13 @@ static unsigned char scale_diff_table[128]; static unsigned short total_quant_bits[17]; /* signal to noise ratio of each quantification step (could be - computed from quant_steps[]). The values are dB multiplied by 10 + computed from quant_steps[]). The values are dB multiplied by 10 */ -static unsigned short quant_snr[17] = { +static const unsigned short quant_snr[17] = { 70, 110, 160, 208, 253, 316, 378, 439, - 499, 559, 620, 680, - 740, 800, 861, 920, + 499, 559, 620, 680, + 740, 800, 861, 920, 980 }; @@ -90,3 +115,4 @@ static const float fixed_smr[SBLIMIT] = { static const unsigned char nb_scale_factors[4] = { 3, 2, 1, 2 }; +#endif /* AVCODEC_MPEGAUDIOTAB_H */