[0] | 1 | //convert.c: |
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| 2 | |
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[690] | 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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| 5 | * |
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| 6 | * This file is part of libroar a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * libroar is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | * NOTE for everyone want's to change something and send patches: |
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| 24 | * read README and HACKING! There a addition information on |
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| 25 | * the license of this document you need to read before you send |
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| 26 | * any patches. |
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| 27 | * |
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| 28 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 29 | * or libpulse*: |
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| 30 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 31 | * and are therefore GPL. Because of this it may be illigal to use |
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| 32 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 33 | */ |
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| 34 | |
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[0] | 35 | #include "libroar.h" |
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[1064] | 36 | //#define free(p) {ROAR_WARN("free(%p) = ?", (p)); free((p)); ROAR_WARN("free(%p): OK", (p));} |
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[0] | 37 | |
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| 38 | int roar_conv_bits (void * out, void * in, int samples, int from, int to) { |
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[845] | 39 | int format; |
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| 40 | |
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[0] | 41 | if ( from == to ) { |
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| 42 | if ( in == out ) |
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| 43 | return 0; |
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| 44 | |
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| 45 | memcpy(out, in, samples * from / 8); |
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| 46 | return 0; |
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| 47 | } |
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| 48 | |
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[845] | 49 | format = ((from / 8) << 4) + (to / 8); |
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[0] | 50 | |
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[845] | 51 | switch (format) { |
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[849] | 52 | case 0x12: return roar_conv_bits_8to16( out, in, samples); |
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| 53 | case 0x14: return roar_conv_bits_8to32( out, in, samples); |
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| 54 | case 0x21: return roar_conv_bits_16to8( out, in, samples); |
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[845] | 55 | case 0x24: return roar_conv_bits_16to32(out, in, samples); |
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[849] | 56 | case 0x41: return roar_conv_bits_32to8( out, in, samples); |
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[845] | 57 | case 0x42: return roar_conv_bits_32to16(out, in, samples); |
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| 58 | default: |
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| 59 | errno = ENOSYS; |
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| 60 | return -1; |
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| 61 | } |
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[0] | 62 | |
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| 63 | return -1; |
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| 64 | } |
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| 65 | |
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| 66 | int roar_conv_bits_8to16 (void * out, void * in, int samples) { |
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| 67 | char * ip = (char *)in; |
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| 68 | int16_t * op = (int16_t*)out; |
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| 69 | int i; |
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| 70 | |
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| 71 | for (i = samples - 1; i >= 0; i--) |
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| 72 | op[i] = ip[i] << 8; |
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| 73 | |
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| 74 | return 0; |
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| 75 | } |
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| 76 | |
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[845] | 77 | int roar_conv_bits_8to32 (void * out, void * in, int samples) { |
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| 78 | char * ip = (char *)in; |
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| 79 | int32_t * op = (int32_t*)out; |
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| 80 | int i; |
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| 81 | |
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| 82 | for (i = samples - 1; i >= 0; i--) |
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| 83 | op[i] = ip[i] << 24; |
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| 84 | |
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| 85 | return 0; |
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| 86 | } |
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| 87 | |
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[0] | 88 | int roar_conv_bits_16to8 (void * out, void * in, int samples) { |
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| 89 | int16_t * ip = (int16_t*)in; |
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| 90 | char * op = (char *)out; |
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| 91 | int i; |
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| 92 | |
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[624] | 93 | ROAR_DBG("roar_conv_bits_16to8(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 94 | |
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[0] | 95 | for (i = 0; i < samples; i++) |
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| 96 | op[i] = ip[i] >> 8; |
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| 97 | |
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| 98 | return 0; |
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| 99 | } |
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| 100 | |
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[845] | 101 | int roar_conv_bits_16to32 (void * out, void * in, int samples) { |
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| 102 | int16_t * ip = (int16_t*)in; |
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| 103 | int32_t * op = (int32_t*)out; |
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| 104 | int i; |
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| 105 | |
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| 106 | for (i = samples - 1; i >= 0; i--) |
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| 107 | op[i] = ip[i] << 16; |
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| 108 | |
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| 109 | return 0; |
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| 110 | } |
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| 111 | |
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| 112 | int roar_conv_bits_32to8 (void * out, void * in, int samples) { |
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| 113 | int32_t * ip = (int32_t*)in; |
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| 114 | char * op = (char *)out; |
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| 115 | int i; |
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| 116 | |
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| 117 | for (i = 0; i < samples; i++) |
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| 118 | op[i] = ip[i] >> 24; |
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| 119 | |
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| 120 | return 0; |
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| 121 | } |
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| 122 | |
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| 123 | int roar_conv_bits_32to16 (void * out, void * in, int samples) { |
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| 124 | int32_t * ip = (int32_t*)in; |
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| 125 | int16_t * op = (int16_t*)out; |
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| 126 | int i; |
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| 127 | |
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| 128 | for (i = 0; i < samples; i++) |
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| 129 | op[i] = ip[i] >> 16; |
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| 130 | |
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| 131 | return 0; |
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| 132 | } |
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[0] | 133 | |
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| 134 | int roar_conv_chans (void * out, void * in, int samples, int from, int to, int bits) { |
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[850] | 135 | if ( from == to ) { |
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| 136 | if ( in == out ) |
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| 137 | return 0; |
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| 138 | |
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| 139 | memcpy(out, in, samples * from * bits / 8); |
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| 140 | return 0; |
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| 141 | } |
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| 142 | |
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| 143 | switch (bits) { |
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| 144 | case 8: |
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| 145 | switch (from) { |
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| 146 | case 1: |
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| 147 | switch (to) { |
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| 148 | case 2: return roar_conv_chans_1to28(out, in, samples); |
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| 149 | default: return roar_conv_chans_1ton8(out, in, samples, to); |
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| 150 | } |
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| 151 | break; |
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| 152 | case 2: |
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| 153 | switch (to) { |
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| 154 | case 1: return roar_conv_chans_2to18(out, in, samples); |
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| 155 | default: return -1; |
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| 156 | } |
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| 157 | break; |
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| 158 | default: |
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| 159 | switch (to) { |
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| 160 | case 1: return roar_conv_chans_nto18(out, in, samples, from); |
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| 161 | default: return -1; |
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| 162 | } |
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| 163 | } |
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| 164 | break; |
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| 165 | case 16: |
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| 166 | switch (from) { |
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| 167 | case 1: |
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| 168 | switch (to) { |
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| 169 | case 2: return roar_conv_chans_1to216(out, in, samples); |
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| 170 | default: return roar_conv_chans_1ton16(out, in, samples, to); |
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| 171 | } |
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| 172 | break; |
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| 173 | case 2: |
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| 174 | switch (to) { |
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| 175 | case 1: return roar_conv_chans_2to116(out, in, samples); |
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| 176 | default: return -1; |
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| 177 | } |
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| 178 | break; |
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| 179 | default: |
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| 180 | switch (to) { |
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| 181 | case 1: return roar_conv_chans_nto116(out, in, samples, from); |
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| 182 | default: return -1; |
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| 183 | } |
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| 184 | } |
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| 185 | break; |
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| 186 | default: return -1; |
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[0] | 187 | } |
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| 188 | |
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| 189 | return -1; |
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| 190 | } |
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| 191 | |
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| 192 | int roar_conv_chans_1ton8 (void * out, void * in, int samples, int to) { |
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| 193 | char * ip = (char*) in, * op = (char*) out; |
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| 194 | int i; |
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| 195 | int c; |
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| 196 | |
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| 197 | for (i = samples - 1; i >= 0; i--) |
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| 198 | for (c = to - 1; c >= 0; c--) |
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| 199 | op[i*to + c] = ip[i]; |
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| 200 | |
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| 201 | return 0; |
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| 202 | } |
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| 203 | |
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[850] | 204 | int roar_conv_chans_1to28 (void * out, void * in, int samples) { |
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| 205 | char * ip = (char*) in, * op = (char*) out; |
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[852] | 206 | int i, h; |
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[850] | 207 | |
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[852] | 208 | samples--; |
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[850] | 209 | |
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[852] | 210 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 211 | op[i + 0] = ip[h]; |
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| 212 | op[i + 1] = ip[h]; |
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[850] | 213 | } |
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| 214 | |
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| 215 | return 0; |
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| 216 | } |
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| 217 | |
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[0] | 218 | int roar_conv_chans_1ton16 (void * out, void * in, int samples, int to) { |
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| 219 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 220 | int i; |
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| 221 | int c; |
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| 222 | |
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| 223 | for (i = samples - 1; i >= 0; i--) |
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| 224 | for (c = to - 1; c >= 0; c--) |
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| 225 | op[i*to + c] = ip[i]; |
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| 226 | |
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| 227 | return 0; |
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| 228 | } |
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| 229 | |
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[850] | 230 | int roar_conv_chans_1to216 (void * out, void * in, int samples) { |
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| 231 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 232 | int i, h; |
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[850] | 233 | |
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[852] | 234 | samples--; |
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[850] | 235 | |
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[852] | 236 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 237 | op[i + 0] = ip[h]; |
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| 238 | op[i + 1] = ip[h]; |
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[850] | 239 | } |
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| 240 | |
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| 241 | return 0; |
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| 242 | } |
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| 243 | |
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[626] | 244 | int roar_conv_chans_nto18 (void * out, void * in, int samples, int from) { |
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| 245 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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| 246 | int i; |
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| 247 | int c; |
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| 248 | register int s; |
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| 249 | |
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| 250 | samples /= from; |
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| 251 | |
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| 252 | for (i = samples - 1; i >= 0; i--) { |
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| 253 | s = 0; |
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| 254 | |
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| 255 | for (c = 0; c < from; c++) |
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| 256 | s += ip[i*from + c]; |
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| 257 | |
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| 258 | s /= from; |
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| 259 | op[i] = s; |
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| 260 | } |
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| 261 | |
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| 262 | return 0; |
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| 263 | } |
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| 264 | |
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[850] | 265 | int roar_conv_chans_2to18 (void * out, void * in, int samples) { |
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| 266 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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[852] | 267 | int i, h; |
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[850] | 268 | |
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| 269 | samples -= 2; |
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| 270 | |
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[852] | 271 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) |
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| 272 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[850] | 273 | |
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| 274 | return 0; |
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| 275 | } |
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| 276 | |
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[624] | 277 | int roar_conv_chans_nto116 (void * out, void * in, int samples, int from) { |
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| 278 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 279 | int i; |
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| 280 | int c; |
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| 281 | register int s; |
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| 282 | |
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| 283 | samples /= from; |
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| 284 | |
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| 285 | for (i = samples - 1; i >= 0; i--) { |
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| 286 | s = 0; |
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| 287 | |
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| 288 | for (c = 0; c < from; c++) |
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| 289 | s += ip[i*from + c]; |
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| 290 | |
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| 291 | s /= from; |
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| 292 | op[i] = s; |
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| 293 | } |
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| 294 | |
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| 295 | return 0; |
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| 296 | } |
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| 297 | |
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[850] | 298 | int roar_conv_chans_2to116 (void * out, void * in, int samples) { |
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| 299 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 300 | int i, h; |
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[850] | 301 | |
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[1064] | 302 | ROAR_DBG("roar_conv_chans_2to116(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 303 | |
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[850] | 304 | samples -= 2; |
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| 305 | |
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[1064] | 306 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) { |
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| 307 | ROAR_DBG("roar_conv_chans_2to116(out=%p, in=%p, samples=%i): op[%i] = (ip[%i] + ip[%i])/2", out, in, samples, h, i, i+1); |
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[852] | 308 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[1064] | 309 | } |
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[850] | 310 | |
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| 311 | return 0; |
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| 312 | } |
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| 313 | |
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[0] | 314 | int roar_conv_rate (void * out, void * in, int samples, int from, int to, int bits, int channels) { |
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| 315 | if ( bits == 8 ) |
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| 316 | return roar_conv_rate_8(out, in, samples, from, to, channels); |
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| 317 | |
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| 318 | if ( bits == 16 ) |
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| 319 | return roar_conv_rate_16(out, in, samples, from, to, channels); |
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| 320 | |
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| 321 | return -1; |
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| 322 | } |
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| 323 | |
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| 324 | int roar_conv_rate_8 (void * out, void * in, int samples, int from, int to, int channels) { |
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| 325 | return -1; |
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| 326 | } |
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[33] | 327 | |
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[0] | 328 | int roar_conv_rate_16 (void * out, void * in, int samples, int from, int to, int channels) { |
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[1061] | 329 | if ( from > to ) { |
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| 330 | switch (channels) { |
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| 331 | case 1: |
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| 332 | return roar_conv_rate_161zoh(out, in, samples, from, to); |
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| 333 | case 2: |
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[1064] | 334 | return roar_conv_rate_162zoh(out, in, samples, from, to); |
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[1061] | 335 | default: |
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| 336 | return -1; |
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| 337 | } |
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| 338 | } else { |
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| 339 | if ( channels == 1 ) { |
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| 340 | printf("roar_conv_rate_16(): samples=%i -> %i, rate=%i -> %i\n", samples*from/to, samples, from, to); |
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| 341 | return roar_conv_poly4_16s((int16_t*) out, (int16_t*) in, samples, samples*from/to, (float)from/to); |
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| 342 | // return roar_conv_poly4_16((int16_t*) out, (int16_t*) in, samples*to/from, samples); |
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| 343 | } |
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[386] | 344 | } |
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| 345 | |
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[0] | 346 | return -1; |
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| 347 | } |
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| 348 | |
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[1061] | 349 | int roar_conv_rate_161zoh(void * out, void * in, int samples, int from, int to) { |
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| 350 | int16_t * ip = in; |
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| 351 | int16_t * op = out; |
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| 352 | float t = 0; |
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| 353 | float step = (float)to/from; |
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| 354 | int i; |
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| 355 | |
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| 356 | for (i= 0; i < samples; i++) { |
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| 357 | op[(int)t] = ip[i]; |
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| 358 | t += step; |
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| 359 | } |
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| 360 | |
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| 361 | return 0; |
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| 362 | } |
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| 363 | |
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[1064] | 364 | int roar_conv_rate_162zoh(void * out, void * in, int samples, int from, int to) { |
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| 365 | int16_t * ip = in; |
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| 366 | int16_t * op = out; |
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| 367 | float t = 0; |
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| 368 | float step = (float)to/from; |
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| 369 | int i; |
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| 370 | |
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| 371 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
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| 372 | samples /= 2; |
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| 373 | samples -= 1; |
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| 374 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
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| 375 | |
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| 376 | for (i= 0; i < samples; i++) { |
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| 377 | ROAR_DBG("roar_conv_rate_162zoh(*): t=%f, i=%i // op[%i] = ip[%i]", t, i, 2*(int)t, 2*i); |
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| 378 | op[2*(int)t ] = ip[2*i ]; |
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| 379 | op[2*(int)t + 1] = ip[2*i + 1]; |
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| 380 | t += step; |
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| 381 | } |
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| 382 | |
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| 383 | return 0; |
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| 384 | } |
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| 385 | |
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[875] | 386 | int roar_conv_signedness (void * out, void * in, int samples, int from, int to, int bits) { |
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| 387 | |
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| 388 | if ( from != to ) { |
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| 389 | if ( from && !to ) { |
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| 390 | switch (bits) { |
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| 391 | case 8: roar_conv_codec_s2u8( out, in, samples); break; |
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| 392 | case 16: roar_conv_codec_s2u16(out, in, samples); break; |
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| 393 | case 32: roar_conv_codec_s2u32(out, in, samples); break; |
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| 394 | default: |
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| 395 | errno = ENOSYS; |
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| 396 | return -1; |
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| 397 | } |
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| 398 | } else if ( !from && to ) { |
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| 399 | switch (bits) { |
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| 400 | case 8: roar_conv_codec_u2s8( out, in, samples); break; |
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| 401 | case 16: roar_conv_codec_u2s16(out, in, samples); break; |
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| 402 | case 32: roar_conv_codec_u2s32(out, in, samples); break; |
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| 403 | default: |
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| 404 | errno = ENOSYS; |
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| 405 | return -1; |
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| 406 | } |
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| 407 | } else { |
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[876] | 408 | return -1; |
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| 409 | } |
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| 410 | } else { |
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| 411 | if ( out == in ) |
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| 412 | return 0; |
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[875] | 413 | |
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[876] | 414 | memcpy(out, in, samples * bits / 8); |
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| 415 | return 0; |
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[875] | 416 | } |
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| 417 | |
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[876] | 418 | return 0; |
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[875] | 419 | } |
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| 420 | |
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[876] | 421 | int roar_conv_codec (void * out, void * in, int samples, int from, int to, int bits) { |
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[0] | 422 | int inbo = ROAR_CODEC_BYTE_ORDER(from), outbo = ROAR_CODEC_BYTE_ORDER(to); |
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| 423 | int ins = ROAR_CODEC_IS_SIGNED(from), outs = ROAR_CODEC_IS_SIGNED(to); |
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[858] | 424 | void * nin = in; |
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[0] | 425 | |
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[858] | 426 | |
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[876] | 427 | ROAR_DBG("roar_conv_codec(out=%p, in=%p, samples=%i, from=%i(%s), to=%i(%s), bits=%i) = ?", |
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[869] | 428 | out, in, samples, from, roar_codec2str(from), to, roar_codec2str(to), bits); |
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| 429 | |
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[875] | 430 | roar_conv_endian(out, in, samples, inbo, outbo, bits); |
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| 431 | nin = out; |
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[0] | 432 | |
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[875] | 433 | return roar_conv_signedness(out, in, samples, ins, outs, bits); |
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[0] | 434 | } |
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| 435 | |
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| 436 | int roar_conv_codec_s2u8 (void * out, void * in, int samples) { |
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| 437 | char * ip = in; |
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| 438 | unsigned char * op = out; |
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| 439 | int i; |
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| 440 | |
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| 441 | for(i = 0; i < samples; i++) |
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| 442 | op[i] = ip[i] + 128; |
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| 443 | |
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| 444 | return 0; |
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| 445 | } |
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| 446 | |
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[633] | 447 | int roar_conv_codec_s2u16 (void * out, void * in, int samples) { |
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| 448 | int16_t * ip = in; |
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| 449 | uint16_t * op = out; |
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| 450 | int i; |
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| 451 | |
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| 452 | for(i = 0; i < samples; i++) |
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| 453 | op[i] = ip[i] + 32768; |
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| 454 | |
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| 455 | return 0; |
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| 456 | } |
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[0] | 457 | |
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[846] | 458 | int roar_conv_codec_s2u32 (void * out, void * in, int samples) { |
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| 459 | int32_t * ip = in; |
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| 460 | uint32_t * op = out; |
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| 461 | int i; |
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| 462 | |
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| 463 | for(i = 0; i < samples; i++) |
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| 464 | op[i] = ip[i] + 2147483648U; |
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| 465 | |
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| 466 | return 0; |
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| 467 | } |
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| 468 | |
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| 469 | int roar_conv_codec_u2s8 (void * out, void * in, int samples) { |
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| 470 | unsigned char * ip = in; |
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| 471 | char * op = out; |
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| 472 | int i; |
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| 473 | |
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| 474 | for(i = 0; i < samples; i++) |
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| 475 | op[i] = ip[i] - 128; |
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| 476 | |
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| 477 | return 0; |
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| 478 | } |
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| 479 | |
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| 480 | int roar_conv_codec_u2s16 (void * out, void * in, int samples) { |
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| 481 | uint16_t * ip = in; |
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| 482 | int16_t * op = out; |
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| 483 | int i; |
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| 484 | |
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| 485 | for(i = 0; i < samples; i++) |
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| 486 | op[i] = ip[i] - 32768; |
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| 487 | |
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| 488 | return 0; |
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| 489 | } |
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| 490 | |
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| 491 | int roar_conv_codec_u2s32 (void * out, void * in, int samples) { |
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| 492 | uint32_t * ip = in; |
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| 493 | int32_t * op = out; |
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| 494 | int i; |
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| 495 | |
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| 496 | for(i = 0; i < samples; i++) |
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| 497 | op[i] = ip[i] - 2147483648U; |
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| 498 | |
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| 499 | return 0; |
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| 500 | } |
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| 501 | |
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[875] | 502 | |
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| 503 | int roar_conv_endian (void * out, void * in, int samples, int from, int to, int bits) { |
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| 504 | |
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| 505 | if ( bits == 8 ) { |
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| 506 | from = to = ROAR_CODEC_NATIVE_ENDIAN; |
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| 507 | |
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| 508 | } else if ( bits == 16 ) { |
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| 509 | if ( from == ROAR_CODEC_PDP ) |
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| 510 | from = ROAR_CODEC_LE; |
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| 511 | if ( to == ROAR_CODEC_PDP ) |
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| 512 | to = ROAR_CODEC_LE; |
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| 513 | } |
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| 514 | |
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[876] | 515 | ROAR_DBG("roar_conv_endian(out=%p, in=%p, samples=%i, from=%i, to=%i, bits=%i) = ?", out, in, samples, from, to, bits); |
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| 516 | |
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[875] | 517 | if ( from == to ) { |
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| 518 | if ( in != out ) { |
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| 519 | memcpy(out, in, samples * bits / 8); |
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| 520 | } |
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[876] | 521 | return 0; |
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| 522 | } else { |
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[875] | 523 | if ( bits == 16 ) { |
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| 524 | // in this case we can only have LE vs. BE, so, only need to swap: |
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[876] | 525 | ROAR_DBG("roar_conv_endian(*): Doing 16 bit byteswap"); |
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[875] | 526 | return roar_conv_endian_16(out, in, samples); |
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| 527 | } else if ( bits == 24 ) { |
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| 528 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
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| 529 | return roar_conv_endian_24(out, in, samples); |
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| 530 | } else { // what the hell is PDP eddines in 24 bit mode? |
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| 531 | return -1; |
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| 532 | } |
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| 533 | } else if ( bits == 32 ) { |
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| 534 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
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| 535 | return roar_conv_endian_32(out, in, samples); |
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| 536 | } else { // need to handle 32 PDP eddines here? |
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| 537 | return -1; |
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| 538 | } |
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| 539 | } else { |
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| 540 | return -1; |
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| 541 | } |
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| 542 | } |
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| 543 | |
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| 544 | return -1; |
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| 545 | } |
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| 546 | |
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| 547 | |
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[857] | 548 | int roar_conv_endian_16 (void * out, void * in, int samples) { |
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| 549 | char * ip = in; |
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| 550 | char * op = out; |
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| 551 | register char c; |
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| 552 | int i; |
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| 553 | |
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| 554 | samples *= 2; |
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| 555 | |
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| 556 | if ( out != in ) { |
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[858] | 557 | // printf("out != in\n"); |
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[857] | 558 | for(i = 0; i < samples; i += 2) { |
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[858] | 559 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
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[857] | 560 | op[i ] = ip[i+1]; |
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| 561 | op[i+1] = ip[i ]; |
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| 562 | } |
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| 563 | } else { |
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[858] | 564 | // printf("out == in\n"); |
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[857] | 565 | for(i = 0; i < samples; i += 2) { |
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| 566 | c = ip[i+1]; |
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| 567 | op[i+1] = ip[i ]; |
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| 568 | op[i ] = c; |
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| 569 | } |
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| 570 | } |
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| 571 | |
---|
| 572 | return 0; |
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| 573 | } |
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| 574 | |
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[859] | 575 | int roar_conv_endian_24 (void * out, void * in, int samples) { |
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| 576 | char * ip = in; |
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| 577 | char * op = out; |
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| 578 | register char c; |
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| 579 | int i; |
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| 580 | |
---|
| 581 | samples *= 3; |
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| 582 | |
---|
| 583 | if ( out != in ) { |
---|
| 584 | // printf("out != in\n"); |
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| 585 | for(i = 0; i < samples; i += 3) { |
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| 586 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
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| 587 | op[i ] = ip[i+2]; |
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| 588 | op[i+2] = ip[i ]; |
---|
| 589 | } |
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| 590 | } else { |
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| 591 | // printf("out == in\n"); |
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| 592 | for(i = 0; i < samples; i += 3) { |
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| 593 | c = ip[i+2]; |
---|
| 594 | op[i+2] = ip[i ]; |
---|
| 595 | op[i ] = c; |
---|
| 596 | } |
---|
| 597 | } |
---|
| 598 | |
---|
| 599 | return 0; |
---|
| 600 | } |
---|
| 601 | |
---|
[869] | 602 | int roar_conv_endian_32 (void * out, void * in, int samples) { |
---|
| 603 | int32_t * ip = in; |
---|
| 604 | int32_t * op = out; |
---|
| 605 | union { |
---|
| 606 | int32_t val; |
---|
| 607 | char data[4]; |
---|
| 608 | } c, h; |
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| 609 | int i; |
---|
| 610 | |
---|
| 611 | // may the holly optimizer save our souls! |
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| 612 | |
---|
| 613 | ROAR_DBG("roar_conv_endian_32(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
---|
| 614 | |
---|
| 615 | for (i = 0; i < samples; i++) { |
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| 616 | c.val = ip[i]; |
---|
| 617 | h.data[0] = c.data[3]; |
---|
| 618 | h.data[1] = c.data[2]; |
---|
| 619 | h.data[2] = c.data[1]; |
---|
| 620 | h.data[3] = c.data[0]; |
---|
| 621 | op[i] = h.val; |
---|
| 622 | } |
---|
| 623 | |
---|
| 624 | return 0; |
---|
| 625 | } |
---|
| 626 | |
---|
[0] | 627 | int roar_conv (void * out, void * in, int samples, struct roar_audio_info * from, struct roar_audio_info * to) { |
---|
| 628 | void * ip = in; |
---|
[1060] | 629 | void * real_out = NULL; |
---|
[1059] | 630 | size_t from_size, to_size; |
---|
[0] | 631 | |
---|
| 632 | // TODO: decide how to work around both in and out beeing to small to hold all |
---|
| 633 | // data between the steps. |
---|
| 634 | // for the moment: guess out >= in |
---|
| 635 | |
---|
[1060] | 636 | from_size = (from->bits * samples) / 8; |
---|
[1064] | 637 | to_size = ( to->bits * samples * to->rate * to->channels) / (8 * from->rate * from->channels); |
---|
| 638 | |
---|
| 639 | ROAR_DBG("roar_conv(*): size: %i->%i", from_size, to_size); |
---|
[1059] | 640 | |
---|
| 641 | if ( to_size < from_size ) { |
---|
| 642 | real_out = out; |
---|
| 643 | |
---|
| 644 | if ( (out = malloc(from_size)) == NULL ) |
---|
| 645 | return -1; |
---|
[1060] | 646 | |
---|
| 647 | ROAR_DBG("roar_conv(*): malloc(%i)=%p", (int)from_size, out); |
---|
[1059] | 648 | } |
---|
| 649 | |
---|
[876] | 650 | ROAR_DBG("roar_conv(*): bo conv: %i->%i(native)", ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN); |
---|
| 651 | |
---|
[875] | 652 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[876] | 653 | ROAR_DBG("roar_conv(*): doing bo input conv"); |
---|
[1059] | 654 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 655 | if ( to_size < from_size ) |
---|
| 656 | free(out); |
---|
[875] | 657 | return -1; |
---|
[1059] | 658 | } else { |
---|
[875] | 659 | ip = out; |
---|
[1059] | 660 | } |
---|
[875] | 661 | } |
---|
| 662 | |
---|
[0] | 663 | if ( from->bits != to->bits ) { |
---|
[1059] | 664 | if ( roar_conv_bits(out, ip, samples, from->bits, to->bits) == -1 ) { |
---|
| 665 | if ( to_size < from_size ) |
---|
| 666 | free(out); |
---|
[0] | 667 | return -1; |
---|
[1059] | 668 | } else { |
---|
[0] | 669 | ip = out; |
---|
[1059] | 670 | } |
---|
[0] | 671 | } |
---|
| 672 | |
---|
[875] | 673 | if ( ROAR_CODEC_IS_SIGNED(from->codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
[1059] | 674 | if ( roar_conv_signedness(out, ip, samples, ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), to->bits) == -1 ) { |
---|
| 675 | if ( to_size < from_size ) |
---|
| 676 | free(out); |
---|
[875] | 677 | return -1; |
---|
[1059] | 678 | } else { |
---|
[875] | 679 | ip = out; |
---|
[1059] | 680 | } |
---|
[875] | 681 | } |
---|
| 682 | |
---|
| 683 | /* |
---|
[852] | 684 | if ( from->codec != to->codec ) { |
---|
[876] | 685 | if ( roar_conv_codec (out, ip, samples, from->codec, to->codec, to->bits) == -1 ) |
---|
[852] | 686 | return -1; |
---|
| 687 | else |
---|
| 688 | ip = out; |
---|
| 689 | } |
---|
[875] | 690 | */ |
---|
[852] | 691 | |
---|
[386] | 692 | if ( from->rate != to->rate ) { |
---|
[1059] | 693 | if ( roar_conv_rate(out, ip, samples, from->rate, to->rate, to->bits, from->channels) == -1 ) { |
---|
[1060] | 694 | ROAR_DBG("roar_conv(*): failed to convert rate %i->%i (%ich%ibits)", from->rate, to->rate, to->bits, from->channels); |
---|
[1064] | 695 | if ( to_size < from_size ) |
---|
| 696 | free(out); |
---|
[0] | 697 | return -1; |
---|
[1059] | 698 | } else { |
---|
[0] | 699 | ip = out; |
---|
[1064] | 700 | samples = (samples * to->rate) / from->rate; |
---|
[1059] | 701 | } |
---|
[0] | 702 | } |
---|
| 703 | |
---|
[386] | 704 | if ( from->channels != to->channels ) { |
---|
[1059] | 705 | if ( roar_conv_chans(out, ip, samples, from->channels, to->channels, to->bits) == -1 ) { |
---|
| 706 | if ( to_size < from_size ) |
---|
| 707 | free(out); |
---|
[0] | 708 | return -1; |
---|
[1059] | 709 | } else { |
---|
[0] | 710 | ip = out; |
---|
[1059] | 711 | } |
---|
[0] | 712 | } |
---|
| 713 | |
---|
[875] | 714 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[1059] | 715 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 716 | if ( to_size < from_size ) |
---|
| 717 | free(out); |
---|
[875] | 718 | return -1; |
---|
[1059] | 719 | } else { |
---|
[875] | 720 | ip = out; |
---|
[1059] | 721 | } |
---|
| 722 | } |
---|
| 723 | |
---|
| 724 | if ( to_size < from_size ) { |
---|
[1060] | 725 | ROAR_DBG("roar_conv(*): memcpy(%p, %p, %i) = ?", real_out, out, (int)to_size); |
---|
[1059] | 726 | memcpy(real_out, out, to_size); |
---|
| 727 | free(out); |
---|
[1064] | 728 | ROAR_DBG("roar_conv(*): free(%p): OK!", out); |
---|
[875] | 729 | } |
---|
| 730 | |
---|
[0] | 731 | return 0; |
---|
| 732 | } |
---|
| 733 | |
---|
[383] | 734 | |
---|
| 735 | |
---|
| 736 | int roar_conv_poly4_16 (int16_t * out, int16_t * in, size_t olen, size_t ilen) { |
---|
[386] | 737 | return roar_conv_poly4_16s(out, in, olen, ilen, (float)ilen/olen); |
---|
| 738 | } |
---|
| 739 | |
---|
| 740 | int roar_conv_poly4_16s (int16_t * out, int16_t * in, size_t olen, size_t ilen, float step) { |
---|
[383] | 741 | float poly[4]; |
---|
| 742 | float data[4]; |
---|
| 743 | float t = 0; |
---|
| 744 | int16_t * ci = in; |
---|
| 745 | int io, ii = 0; |
---|
| 746 | int i; |
---|
| 747 | |
---|
[386] | 748 | printf("step=%f\n", step); |
---|
| 749 | |
---|
[383] | 750 | // we can not make a poly4 with less than 4 points ;) |
---|
| 751 | if ( ilen < 4 ) |
---|
| 752 | return -1; |
---|
| 753 | |
---|
| 754 | for (i = 0; i < 4; i++) |
---|
| 755 | data[i] = ci[i]; |
---|
| 756 | roar_math_mkpoly_4x4(poly, data); |
---|
| 757 | /* |
---|
| 758 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
---|
| 759 | data[0], data[1], data[2], data[3], |
---|
| 760 | poly[0], poly[1], poly[2], poly[3] |
---|
| 761 | ); |
---|
| 762 | */ |
---|
| 763 | |
---|
| 764 | //0 1 2 3 |
---|
| 765 | |
---|
| 766 | for (io = 0; io < olen; io++) { |
---|
| 767 | // printf("t=%f\n", t); |
---|
| 768 | out[io] = roar_math_cvpoly_4x4(poly, t); |
---|
| 769 | t += step; |
---|
| 770 | if ( t > 2 ) { // we need a new ploynome |
---|
| 771 | // printf("t > 2, need new data\n"); |
---|
| 772 | if ( (ii + 4) < ilen ) { // else: end of block. |
---|
| 773 | t -= 1; |
---|
| 774 | // printf("new data: ii=%i\n", ii); |
---|
| 775 | ii++; |
---|
| 776 | ci++; |
---|
| 777 | for (i = 0; i < 4; i++) |
---|
| 778 | data[i] = ci[i]; |
---|
| 779 | roar_math_mkpoly_4x4(poly, data); |
---|
| 780 | /* |
---|
| 781 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
---|
| 782 | data[0], data[1], data[2], data[3], |
---|
| 783 | poly[0], poly[1], poly[2], poly[3] |
---|
| 784 | ); |
---|
| 785 | */ |
---|
| 786 | } |
---|
| 787 | } |
---|
| 788 | } |
---|
| 789 | |
---|
[386] | 790 | printf("io=%i\n", io); |
---|
| 791 | |
---|
[383] | 792 | return 0; |
---|
| 793 | } |
---|
| 794 | |
---|
[0] | 795 | //ll |
---|