/* * Header file for hardcoded QDM2 tables * * 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 */ #ifndef AVCODEC_QDM2_TABLEGEN_H #define AVCODEC_QDM2_TABLEGEN_H #include #include #include "libavutil/attributes.h" #include "qdm2data.h" #define SOFTCLIP_THRESHOLD 27600 #define HARDCLIP_THRESHOLD 35716 #if CONFIG_HARDCODED_TABLES #define softclip_table_init() #define rnd_table_init() #define init_noise_samples() #define qdm2_init_vlc() #include "libavcodec/qdm2_tables.h" #else static uint16_t softclip_table[HARDCLIP_THRESHOLD - SOFTCLIP_THRESHOLD + 1]; static float noise_table[4096 + 20]; static uint8_t random_dequant_index[256][5]; static uint8_t random_dequant_type24[128][3]; static float noise_samples[128]; static av_cold void softclip_table_init(void) { int i; double dfl = SOFTCLIP_THRESHOLD - 32767; float delta = 1.0 / -dfl; for (i = 0; i < HARDCLIP_THRESHOLD - SOFTCLIP_THRESHOLD + 1; i++) softclip_table[i] = SOFTCLIP_THRESHOLD - ((int)(sin((float)i * delta) * dfl) & 0x0000FFFF); } // random generated table static av_cold void rnd_table_init(void) { int i,j; uint32_t ldw; uint64_t random_seed = 0; float delta = 1.0 / 16384.0; for(i = 0; i < 4096 ;i++) { random_seed = random_seed * 214013 + 2531011; noise_table[i] = (delta * (float)(((int32_t)random_seed >> 16) & 0x00007FFF)- 1.0) * 1.3; } for (i = 0; i < 256 ;i++) { random_seed = 81; ldw = i; for (j = 0; j < 5 ;j++) { random_dequant_index[i][j] = ldw / random_seed; ldw %= random_seed; random_seed /= 3; } } for (i = 0; i < 128 ;i++) { random_seed = 25; ldw = i; for (j = 0; j < 3 ;j++) { random_dequant_type24[i][j] = ldw / random_seed; ldw %= random_seed; random_seed /= 5; } } } static av_cold void init_noise_samples(void) { int i; unsigned random_seed = 0; float delta = 1.0 / 16384.0; for (i = 0; i < 128;i++) { random_seed = random_seed * 214013 + 2531011; noise_samples[i] = (delta * (float)((random_seed >> 16) & 0x00007fff) - 1.0); } } static VLC vlc_tab_level; static VLC vlc_tab_diff; static VLC vlc_tab_run; static VLC fft_level_exp_alt_vlc; static VLC fft_level_exp_vlc; static VLC fft_stereo_exp_vlc; static VLC fft_stereo_phase_vlc; static VLC vlc_tab_tone_level_idx_hi1; static VLC vlc_tab_tone_level_idx_mid; static VLC vlc_tab_tone_level_idx_hi2; static VLC vlc_tab_type30; static VLC vlc_tab_type34; static VLC vlc_tab_fft_tone_offset[5]; static const uint16_t qdm2_vlc_offs[] = { 0,260,566,598,894,1166,1230,1294,1678,1950,2214,2278,2310,2570,2834,3124,3448,3838, }; static VLC_TYPE qdm2_table[3838][2]; static av_cold void qdm2_init_vlc(void) { vlc_tab_level.table = &qdm2_table[qdm2_vlc_offs[0]]; vlc_tab_level.table_allocated = qdm2_vlc_offs[1] - qdm2_vlc_offs[0]; init_vlc(&vlc_tab_level, 8, 24, vlc_tab_level_huffbits, 1, 1, vlc_tab_level_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_diff.table = &qdm2_table[qdm2_vlc_offs[1]]; vlc_tab_diff.table_allocated = qdm2_vlc_offs[2] - qdm2_vlc_offs[1]; init_vlc(&vlc_tab_diff, 8, 37, vlc_tab_diff_huffbits, 1, 1, vlc_tab_diff_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_run.table = &qdm2_table[qdm2_vlc_offs[2]]; vlc_tab_run.table_allocated = qdm2_vlc_offs[3] - qdm2_vlc_offs[2]; init_vlc(&vlc_tab_run, 5, 6, vlc_tab_run_huffbits, 1, 1, vlc_tab_run_huffcodes, 1, 1, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); fft_level_exp_alt_vlc.table = &qdm2_table[qdm2_vlc_offs[3]]; fft_level_exp_alt_vlc.table_allocated = qdm2_vlc_offs[4] - qdm2_vlc_offs[3]; init_vlc(&fft_level_exp_alt_vlc, 8, 28, fft_level_exp_alt_huffbits, 1, 1, fft_level_exp_alt_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); fft_level_exp_vlc.table = &qdm2_table[qdm2_vlc_offs[4]]; fft_level_exp_vlc.table_allocated = qdm2_vlc_offs[5] - qdm2_vlc_offs[4]; init_vlc(&fft_level_exp_vlc, 8, 20, fft_level_exp_huffbits, 1, 1, fft_level_exp_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); fft_stereo_exp_vlc.table = &qdm2_table[qdm2_vlc_offs[5]]; fft_stereo_exp_vlc.table_allocated = qdm2_vlc_offs[6] - qdm2_vlc_offs[5]; init_vlc(&fft_stereo_exp_vlc, 6, 7, fft_stereo_exp_huffbits, 1, 1, fft_stereo_exp_huffcodes, 1, 1, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); fft_stereo_phase_vlc.table = &qdm2_table[qdm2_vlc_offs[6]]; fft_stereo_phase_vlc.table_allocated = qdm2_vlc_offs[7] - qdm2_vlc_offs[6]; init_vlc(&fft_stereo_phase_vlc, 6, 9, fft_stereo_phase_huffbits, 1, 1, fft_stereo_phase_huffcodes, 1, 1, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_tone_level_idx_hi1.table = &qdm2_table[qdm2_vlc_offs[7]]; vlc_tab_tone_level_idx_hi1.table_allocated = qdm2_vlc_offs[8] - qdm2_vlc_offs[7]; init_vlc(&vlc_tab_tone_level_idx_hi1, 8, 20, vlc_tab_tone_level_idx_hi1_huffbits, 1, 1, vlc_tab_tone_level_idx_hi1_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_tone_level_idx_mid.table = &qdm2_table[qdm2_vlc_offs[8]]; vlc_tab_tone_level_idx_mid.table_allocated = qdm2_vlc_offs[9] - qdm2_vlc_offs[8]; init_vlc(&vlc_tab_tone_level_idx_mid, 8, 24, vlc_tab_tone_level_idx_mid_huffbits, 1, 1, vlc_tab_tone_level_idx_mid_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_tone_level_idx_hi2.table = &qdm2_table[qdm2_vlc_offs[9]]; vlc_tab_tone_level_idx_hi2.table_allocated = qdm2_vlc_offs[10] - qdm2_vlc_offs[9]; init_vlc(&vlc_tab_tone_level_idx_hi2, 8, 24, vlc_tab_tone_level_idx_hi2_huffbits, 1, 1, vlc_tab_tone_level_idx_hi2_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_type30.table = &qdm2_table[qdm2_vlc_offs[10]]; vlc_tab_type30.table_allocated = qdm2_vlc_offs[11] - qdm2_vlc_offs[10]; init_vlc(&vlc_tab_type30, 6, 9, vlc_tab_type30_huffbits, 1, 1, vlc_tab_type30_huffcodes, 1, 1, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_type34.table = &qdm2_table[qdm2_vlc_offs[11]]; vlc_tab_type34.table_allocated = qdm2_vlc_offs[12] - qdm2_vlc_offs[11]; init_vlc(&vlc_tab_type34, 5, 10, vlc_tab_type34_huffbits, 1, 1, vlc_tab_type34_huffcodes, 1, 1, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_fft_tone_offset[0].table = &qdm2_table[qdm2_vlc_offs[12]]; vlc_tab_fft_tone_offset[0].table_allocated = qdm2_vlc_offs[13] - qdm2_vlc_offs[12]; init_vlc(&vlc_tab_fft_tone_offset[0], 8, 23, vlc_tab_fft_tone_offset_0_huffbits, 1, 1, vlc_tab_fft_tone_offset_0_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_fft_tone_offset[1].table = &qdm2_table[qdm2_vlc_offs[13]]; vlc_tab_fft_tone_offset[1].table_allocated = qdm2_vlc_offs[14] - qdm2_vlc_offs[13]; init_vlc(&vlc_tab_fft_tone_offset[1], 8, 28, vlc_tab_fft_tone_offset_1_huffbits, 1, 1, vlc_tab_fft_tone_offset_1_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_fft_tone_offset[2].table = &qdm2_table[qdm2_vlc_offs[14]]; vlc_tab_fft_tone_offset[2].table_allocated = qdm2_vlc_offs[15] - qdm2_vlc_offs[14]; init_vlc(&vlc_tab_fft_tone_offset[2], 8, 32, vlc_tab_fft_tone_offset_2_huffbits, 1, 1, vlc_tab_fft_tone_offset_2_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_fft_tone_offset[3].table = &qdm2_table[qdm2_vlc_offs[15]]; vlc_tab_fft_tone_offset[3].table_allocated = qdm2_vlc_offs[16] - qdm2_vlc_offs[15]; init_vlc(&vlc_tab_fft_tone_offset[3], 8, 35, vlc_tab_fft_tone_offset_3_huffbits, 1, 1, vlc_tab_fft_tone_offset_3_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); vlc_tab_fft_tone_offset[4].table = &qdm2_table[qdm2_vlc_offs[16]]; vlc_tab_fft_tone_offset[4].table_allocated = qdm2_vlc_offs[17] - qdm2_vlc_offs[16]; init_vlc(&vlc_tab_fft_tone_offset[4], 8, 38, vlc_tab_fft_tone_offset_4_huffbits, 1, 1, vlc_tab_fft_tone_offset_4_huffcodes, 2, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); } #endif /* CONFIG_HARDCODED_TABLES */ #endif /* AVCODEC_QDM2_TABLEGEN_H */