From 645e75992d8876a5e0aa056739885d3afd08d431 Mon Sep 17 00:00:00 2001 From: Reimar Döffinger Date: Sat, 2 Oct 2010 09:51:26 +0000 Subject: Fix GSM decoding: regular GSM and MSGSM do not use the same bitstream endianness, so they cannot reuse the same code without a lot of function call overhead. Thus use templating to compile two different binaries. Originally committed as revision 25312 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/gsmdec_data.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 libavcodec/gsmdec_data.c (limited to 'libavcodec/gsmdec_data.c') diff --git a/libavcodec/gsmdec_data.c b/libavcodec/gsmdec_data.c new file mode 100644 index 0000000000..4324ea28a9 --- /dev/null +++ b/libavcodec/gsmdec_data.c @@ -0,0 +1,94 @@ +/* + * gsm 06.10 decoder data + * Copyright (c) 2010 Reimar Döffinger + * + * 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 + */ + +#include +#include "gsmdec_data.h" + +const uint16_t ff_gsm_long_term_gain_tab[4] = { + 3277, 11469, 21299, 32767 +}; + +const int16_t ff_gsm_dequant_tab[64][8] = { + { -28, -20, -12, -4, 4, 12, 20, 28}, + { -56, -40, -24, -8, 8, 24, 40, 56}, + { -84, -60, -36, -12, 12, 36, 60, 84}, + { -112, -80, -48, -16, 16, 48, 80, 112}, + { -140, -100, -60, -20, 20, 60, 100, 140}, + { -168, -120, -72, -24, 24, 72, 120, 168}, + { -196, -140, -84, -28, 28, 84, 140, 196}, + { -224, -160, -96, -32, 32, 96, 160, 224}, + { -252, -180, -108, -36, 36, 108, 180, 252}, + { -280, -200, -120, -40, 40, 120, 200, 280}, + { -308, -220, -132, -44, 44, 132, 220, 308}, + { -336, -240, -144, -48, 48, 144, 240, 336}, + { -364, -260, -156, -52, 52, 156, 260, 364}, + { -392, -280, -168, -56, 56, 168, 280, 392}, + { -420, -300, -180, -60, 60, 180, 300, 420}, + { -448, -320, -192, -64, 64, 192, 320, 448}, + { -504, -360, -216, -72, 72, 216, 360, 504}, + { -560, -400, -240, -80, 80, 240, 400, 560}, + { -616, -440, -264, -88, 88, 264, 440, 616}, + { -672, -480, -288, -96, 96, 288, 480, 672}, + { -728, -520, -312, -104, 104, 312, 520, 728}, + { -784, -560, -336, -112, 112, 336, 560, 784}, + { -840, -600, -360, -120, 120, 360, 600, 840}, + { -896, -640, -384, -128, 128, 384, 640, 896}, + { -1008, -720, -432, -144, 144, 432, 720, 1008}, + { -1120, -800, -480, -160, 160, 480, 800, 1120}, + { -1232, -880, -528, -176, 176, 528, 880, 1232}, + { -1344, -960, -576, -192, 192, 576, 960, 1344}, + { -1456, -1040, -624, -208, 208, 624, 1040, 1456}, + { -1568, -1120, -672, -224, 224, 672, 1120, 1568}, + { -1680, -1200, -720, -240, 240, 720, 1200, 1680}, + { -1792, -1280, -768, -256, 256, 768, 1280, 1792}, + { -2016, -1440, -864, -288, 288, 864, 1440, 2016}, + { -2240, -1600, -960, -320, 320, 960, 1600, 2240}, + { -2464, -1760, -1056, -352, 352, 1056, 1760, 2464}, + { -2688, -1920, -1152, -384, 384, 1152, 1920, 2688}, + { -2912, -2080, -1248, -416, 416, 1248, 2080, 2912}, + { -3136, -2240, -1344, -448, 448, 1344, 2240, 3136}, + { -3360, -2400, -1440, -480, 480, 1440, 2400, 3360}, + { -3584, -2560, -1536, -512, 512, 1536, 2560, 3584}, + { -4032, -2880, -1728, -576, 576, 1728, 2880, 4032}, + { -4480, -3200, -1920, -640, 640, 1920, 3200, 4480}, + { -4928, -3520, -2112, -704, 704, 2112, 3520, 4928}, + { -5376, -3840, -2304, -768, 768, 2304, 3840, 5376}, + { -5824, -4160, -2496, -832, 832, 2496, 4160, 5824}, + { -6272, -4480, -2688, -896, 896, 2688, 4480, 6272}, + { -6720, -4800, -2880, -960, 960, 2880, 4800, 6720}, + { -7168, -5120, -3072, -1024, 1024, 3072, 5120, 7168}, + { -8063, -5759, -3456, -1152, 1152, 3456, 5760, 8064}, + { -8959, -6399, -3840, -1280, 1280, 3840, 6400, 8960}, + { -9855, -7039, -4224, -1408, 1408, 4224, 7040, 9856}, + {-10751, -7679, -4608, -1536, 1536, 4608, 7680, 10752}, + {-11647, -8319, -4992, -1664, 1664, 4992, 8320, 11648}, + {-12543, -8959, -5376, -1792, 1792, 5376, 8960, 12544}, + {-13439, -9599, -5760, -1920, 1920, 5760, 9600, 13440}, + {-14335, -10239, -6144, -2048, 2048, 6144, 10240, 14336}, + {-16127, -11519, -6912, -2304, 2304, 6912, 11519, 16127}, + {-17919, -12799, -7680, -2560, 2560, 7680, 12799, 17919}, + {-19711, -14079, -8448, -2816, 2816, 8448, 14079, 19711}, + {-21503, -15359, -9216, -3072, 3072, 9216, 15359, 21503}, + {-23295, -16639, -9984, -3328, 3328, 9984, 16639, 23295}, + {-25087, -17919, -10752, -3584, 3584, 10752, 17919, 25087}, + {-26879, -19199, -11520, -3840, 3840, 11520, 19199, 26879}, + {-28671, -20479, -12288, -4096, 4096, 12288, 20479, 28671} +}; -- cgit v1.2.3