[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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[2099] | 35 | #define DEBUG |
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[1367] | 36 | #include "libroardsp.h" |
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[1064] | 37 | //#define free(p) {ROAR_WARN("free(%p) = ?", (p)); free((p)); ROAR_WARN("free(%p): OK", (p));} |
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[0] | 38 | |
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| 39 | int roar_conv_bits (void * out, void * in, int samples, int from, int to) { |
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[845] | 40 | int format; |
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| 41 | |
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[0] | 42 | if ( from == to ) { |
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| 43 | if ( in == out ) |
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| 44 | return 0; |
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| 45 | |
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| 46 | memcpy(out, in, samples * from / 8); |
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| 47 | return 0; |
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| 48 | } |
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| 49 | |
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[845] | 50 | format = ((from / 8) << 4) + (to / 8); |
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[0] | 51 | |
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[845] | 52 | switch (format) { |
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[849] | 53 | case 0x12: return roar_conv_bits_8to16( out, in, samples); |
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| 54 | case 0x14: return roar_conv_bits_8to32( out, in, samples); |
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| 55 | case 0x21: return roar_conv_bits_16to8( out, in, samples); |
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[845] | 56 | case 0x24: return roar_conv_bits_16to32(out, in, samples); |
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[849] | 57 | case 0x41: return roar_conv_bits_32to8( out, in, samples); |
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[845] | 58 | case 0x42: return roar_conv_bits_32to16(out, in, samples); |
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| 59 | default: |
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| 60 | errno = ENOSYS; |
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| 61 | return -1; |
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| 62 | } |
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[0] | 63 | |
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| 64 | return -1; |
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| 65 | } |
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| 66 | |
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| 67 | int roar_conv_bits_8to16 (void * out, void * in, int samples) { |
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| 68 | char * ip = (char *)in; |
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| 69 | int16_t * op = (int16_t*)out; |
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| 70 | int i; |
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| 71 | |
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| 72 | for (i = samples - 1; i >= 0; i--) |
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| 73 | op[i] = ip[i] << 8; |
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| 74 | |
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| 75 | return 0; |
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| 76 | } |
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| 77 | |
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[845] | 78 | int roar_conv_bits_8to32 (void * out, void * in, int samples) { |
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| 79 | char * ip = (char *)in; |
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| 80 | int32_t * op = (int32_t*)out; |
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| 81 | int i; |
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| 82 | |
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| 83 | for (i = samples - 1; i >= 0; i--) |
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[1458] | 84 | op[i] = (int32_t) ip[i] << 24; |
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[845] | 85 | |
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| 86 | return 0; |
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| 87 | } |
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| 88 | |
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[0] | 89 | int roar_conv_bits_16to8 (void * out, void * in, int samples) { |
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| 90 | int16_t * ip = (int16_t*)in; |
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| 91 | char * op = (char *)out; |
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| 92 | int i; |
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| 93 | |
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[624] | 94 | ROAR_DBG("roar_conv_bits_16to8(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 95 | |
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[0] | 96 | for (i = 0; i < samples; i++) |
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| 97 | op[i] = ip[i] >> 8; |
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| 98 | |
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| 99 | return 0; |
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| 100 | } |
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| 101 | |
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[845] | 102 | int roar_conv_bits_16to32 (void * out, void * in, int samples) { |
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| 103 | int16_t * ip = (int16_t*)in; |
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| 104 | int32_t * op = (int32_t*)out; |
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| 105 | int i; |
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| 106 | |
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| 107 | for (i = samples - 1; i >= 0; i--) |
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[1458] | 108 | op[i] = (int32_t) ip[i] << 16; |
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[845] | 109 | |
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| 110 | return 0; |
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| 111 | } |
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| 112 | |
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| 113 | int roar_conv_bits_32to8 (void * out, void * in, int samples) { |
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| 114 | int32_t * ip = (int32_t*)in; |
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| 115 | char * op = (char *)out; |
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| 116 | int i; |
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| 117 | |
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| 118 | for (i = 0; i < samples; i++) |
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| 119 | op[i] = ip[i] >> 24; |
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| 120 | |
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| 121 | return 0; |
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| 122 | } |
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| 123 | |
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| 124 | int roar_conv_bits_32to16 (void * out, void * in, int samples) { |
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| 125 | int32_t * ip = (int32_t*)in; |
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| 126 | int16_t * op = (int16_t*)out; |
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| 127 | int i; |
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| 128 | |
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| 129 | for (i = 0; i < samples; i++) |
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| 130 | op[i] = ip[i] >> 16; |
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| 131 | |
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| 132 | return 0; |
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| 133 | } |
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[0] | 134 | |
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| 135 | int roar_conv_chans (void * out, void * in, int samples, int from, int to, int bits) { |
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[850] | 136 | if ( from == to ) { |
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| 137 | if ( in == out ) |
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| 138 | return 0; |
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| 139 | |
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| 140 | memcpy(out, in, samples * from * bits / 8); |
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| 141 | return 0; |
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| 142 | } |
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| 143 | |
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| 144 | switch (bits) { |
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| 145 | case 8: |
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| 146 | switch (from) { |
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| 147 | case 1: |
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| 148 | switch (to) { |
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| 149 | case 2: return roar_conv_chans_1to28(out, in, samples); |
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| 150 | default: return roar_conv_chans_1ton8(out, in, samples, to); |
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| 151 | } |
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| 152 | break; |
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| 153 | case 2: |
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| 154 | switch (to) { |
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| 155 | case 1: return roar_conv_chans_2to18(out, in, samples); |
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| 156 | default: return -1; |
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| 157 | } |
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| 158 | break; |
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| 159 | default: |
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| 160 | switch (to) { |
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| 161 | case 1: return roar_conv_chans_nto18(out, in, samples, from); |
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| 162 | default: return -1; |
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| 163 | } |
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| 164 | } |
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| 165 | break; |
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| 166 | case 16: |
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| 167 | switch (from) { |
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| 168 | case 1: |
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| 169 | switch (to) { |
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| 170 | case 2: return roar_conv_chans_1to216(out, in, samples); |
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| 171 | default: return roar_conv_chans_1ton16(out, in, samples, to); |
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| 172 | } |
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| 173 | break; |
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| 174 | case 2: |
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| 175 | switch (to) { |
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| 176 | case 1: return roar_conv_chans_2to116(out, in, samples); |
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| 177 | default: return -1; |
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| 178 | } |
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| 179 | break; |
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| 180 | default: |
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| 181 | switch (to) { |
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| 182 | case 1: return roar_conv_chans_nto116(out, in, samples, from); |
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| 183 | default: return -1; |
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| 184 | } |
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| 185 | } |
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| 186 | break; |
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| 187 | default: return -1; |
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[0] | 188 | } |
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| 189 | |
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| 190 | return -1; |
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| 191 | } |
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| 192 | |
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| 193 | int roar_conv_chans_1ton8 (void * out, void * in, int samples, int to) { |
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| 194 | char * ip = (char*) in, * op = (char*) out; |
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| 195 | int i; |
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| 196 | int c; |
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| 197 | |
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| 198 | for (i = samples - 1; i >= 0; i--) |
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| 199 | for (c = to - 1; c >= 0; c--) |
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| 200 | op[i*to + c] = ip[i]; |
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| 201 | |
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| 202 | return 0; |
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| 203 | } |
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| 204 | |
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[850] | 205 | int roar_conv_chans_1to28 (void * out, void * in, int samples) { |
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| 206 | char * ip = (char*) in, * op = (char*) out; |
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[852] | 207 | int i, h; |
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[850] | 208 | |
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[852] | 209 | samples--; |
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[850] | 210 | |
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[852] | 211 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 212 | op[i + 0] = ip[h]; |
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| 213 | op[i + 1] = ip[h]; |
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[850] | 214 | } |
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| 215 | |
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| 216 | return 0; |
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| 217 | } |
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| 218 | |
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[0] | 219 | int roar_conv_chans_1ton16 (void * out, void * in, int samples, int to) { |
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| 220 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 221 | int i; |
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| 222 | int c; |
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| 223 | |
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| 224 | for (i = samples - 1; i >= 0; i--) |
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| 225 | for (c = to - 1; c >= 0; c--) |
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| 226 | op[i*to + c] = ip[i]; |
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| 227 | |
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| 228 | return 0; |
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| 229 | } |
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| 230 | |
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[850] | 231 | int roar_conv_chans_1to216 (void * out, void * in, int samples) { |
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| 232 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 233 | int i, h; |
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[850] | 234 | |
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[852] | 235 | samples--; |
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[850] | 236 | |
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[852] | 237 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 238 | op[i + 0] = ip[h]; |
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| 239 | op[i + 1] = ip[h]; |
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[850] | 240 | } |
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| 241 | |
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| 242 | return 0; |
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| 243 | } |
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| 244 | |
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[626] | 245 | int roar_conv_chans_nto18 (void * out, void * in, int samples, int from) { |
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| 246 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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| 247 | int i; |
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| 248 | int c; |
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| 249 | register int s; |
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| 250 | |
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| 251 | samples /= from; |
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| 252 | |
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| 253 | for (i = samples - 1; i >= 0; i--) { |
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| 254 | s = 0; |
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| 255 | |
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| 256 | for (c = 0; c < from; c++) |
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| 257 | s += ip[i*from + c]; |
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| 258 | |
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| 259 | s /= from; |
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| 260 | op[i] = s; |
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| 261 | } |
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| 262 | |
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| 263 | return 0; |
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| 264 | } |
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| 265 | |
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[850] | 266 | int roar_conv_chans_2to18 (void * out, void * in, int samples) { |
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| 267 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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[852] | 268 | int i, h; |
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[850] | 269 | |
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| 270 | samples -= 2; |
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| 271 | |
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[852] | 272 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) |
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| 273 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[850] | 274 | |
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| 275 | return 0; |
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| 276 | } |
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| 277 | |
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[624] | 278 | int roar_conv_chans_nto116 (void * out, void * in, int samples, int from) { |
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| 279 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 280 | int i; |
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| 281 | int c; |
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| 282 | register int s; |
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| 283 | |
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| 284 | samples /= from; |
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| 285 | |
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| 286 | for (i = samples - 1; i >= 0; i--) { |
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| 287 | s = 0; |
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| 288 | |
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| 289 | for (c = 0; c < from; c++) |
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| 290 | s += ip[i*from + c]; |
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| 291 | |
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| 292 | s /= from; |
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| 293 | op[i] = s; |
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| 294 | } |
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| 295 | |
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| 296 | return 0; |
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| 297 | } |
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| 298 | |
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[850] | 299 | int roar_conv_chans_2to116 (void * out, void * in, int samples) { |
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| 300 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 301 | int i, h; |
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[850] | 302 | |
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[1064] | 303 | ROAR_DBG("roar_conv_chans_2to116(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 304 | |
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[850] | 305 | samples -= 2; |
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| 306 | |
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[1064] | 307 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) { |
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| 308 | 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] | 309 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[1064] | 310 | } |
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[850] | 311 | |
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| 312 | return 0; |
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| 313 | } |
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| 314 | |
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[0] | 315 | int roar_conv_rate (void * out, void * in, int samples, int from, int to, int bits, int channels) { |
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| 316 | if ( bits == 8 ) |
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| 317 | return roar_conv_rate_8(out, in, samples, from, to, channels); |
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| 318 | |
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| 319 | if ( bits == 16 ) |
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| 320 | return roar_conv_rate_16(out, in, samples, from, to, channels); |
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| 321 | |
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| 322 | return -1; |
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| 323 | } |
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| 324 | |
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| 325 | int roar_conv_rate_8 (void * out, void * in, int samples, int from, int to, int channels) { |
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| 326 | return -1; |
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| 327 | } |
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[33] | 328 | |
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[0] | 329 | int roar_conv_rate_16 (void * out, void * in, int samples, int from, int to, int channels) { |
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[1061] | 330 | if ( from > to ) { |
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| 331 | switch (channels) { |
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| 332 | case 1: |
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| 333 | return roar_conv_rate_161zoh(out, in, samples, from, to); |
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| 334 | case 2: |
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[1064] | 335 | return roar_conv_rate_162zoh(out, in, samples, from, to); |
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[1061] | 336 | default: |
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| 337 | return -1; |
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| 338 | } |
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| 339 | } else { |
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| 340 | if ( channels == 1 ) { |
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| 341 | printf("roar_conv_rate_16(): samples=%i -> %i, rate=%i -> %i\n", samples*from/to, samples, from, to); |
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| 342 | return roar_conv_poly4_16s((int16_t*) out, (int16_t*) in, samples, samples*from/to, (float)from/to); |
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| 343 | // return roar_conv_poly4_16((int16_t*) out, (int16_t*) in, samples*to/from, samples); |
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| 344 | } |
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[386] | 345 | } |
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| 346 | |
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[0] | 347 | return -1; |
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| 348 | } |
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| 349 | |
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[1061] | 350 | int roar_conv_rate_161zoh(void * out, void * in, int samples, int from, int to) { |
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| 351 | int16_t * ip = in; |
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| 352 | int16_t * op = out; |
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| 353 | float t = 0; |
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| 354 | float step = (float)to/from; |
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| 355 | int i; |
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| 356 | |
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| 357 | for (i= 0; i < samples; i++) { |
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| 358 | op[(int)t] = ip[i]; |
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| 359 | t += step; |
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| 360 | } |
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| 361 | |
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| 362 | return 0; |
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| 363 | } |
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| 364 | |
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[1064] | 365 | int roar_conv_rate_162zoh(void * out, void * in, int samples, int from, int to) { |
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| 366 | int16_t * ip = in; |
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| 367 | int16_t * op = out; |
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| 368 | float t = 0; |
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| 369 | float step = (float)to/from; |
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| 370 | int i; |
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| 371 | |
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| 372 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
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| 373 | samples /= 2; |
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| 374 | samples -= 1; |
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| 375 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
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| 376 | |
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| 377 | for (i= 0; i < samples; i++) { |
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| 378 | 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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| 379 | op[2*(int)t ] = ip[2*i ]; |
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| 380 | op[2*(int)t + 1] = ip[2*i + 1]; |
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| 381 | t += step; |
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| 382 | } |
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| 383 | |
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| 384 | return 0; |
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| 385 | } |
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| 386 | |
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[875] | 387 | int roar_conv_signedness (void * out, void * in, int samples, int from, int to, int bits) { |
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| 388 | |
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| 389 | if ( from != to ) { |
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| 390 | if ( from && !to ) { |
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| 391 | switch (bits) { |
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| 392 | case 8: roar_conv_codec_s2u8( out, in, samples); break; |
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| 393 | case 16: roar_conv_codec_s2u16(out, in, samples); break; |
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| 394 | case 32: roar_conv_codec_s2u32(out, in, samples); break; |
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| 395 | default: |
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| 396 | errno = ENOSYS; |
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| 397 | return -1; |
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| 398 | } |
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| 399 | } else if ( !from && to ) { |
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| 400 | switch (bits) { |
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| 401 | case 8: roar_conv_codec_u2s8( out, in, samples); break; |
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| 402 | case 16: roar_conv_codec_u2s16(out, in, samples); break; |
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| 403 | case 32: roar_conv_codec_u2s32(out, in, samples); break; |
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| 404 | default: |
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| 405 | errno = ENOSYS; |
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| 406 | return -1; |
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| 407 | } |
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| 408 | } else { |
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[876] | 409 | return -1; |
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| 410 | } |
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| 411 | } else { |
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| 412 | if ( out == in ) |
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| 413 | return 0; |
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[875] | 414 | |
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[876] | 415 | memcpy(out, in, samples * bits / 8); |
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| 416 | return 0; |
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[875] | 417 | } |
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| 418 | |
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[876] | 419 | return 0; |
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[875] | 420 | } |
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| 421 | |
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[876] | 422 | int roar_conv_codec (void * out, void * in, int samples, int from, int to, int bits) { |
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[0] | 423 | int inbo = ROAR_CODEC_BYTE_ORDER(from), outbo = ROAR_CODEC_BYTE_ORDER(to); |
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| 424 | int ins = ROAR_CODEC_IS_SIGNED(from), outs = ROAR_CODEC_IS_SIGNED(to); |
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[858] | 425 | void * nin = in; |
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[0] | 426 | |
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[858] | 427 | |
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[876] | 428 | ROAR_DBG("roar_conv_codec(out=%p, in=%p, samples=%i, from=%i(%s), to=%i(%s), bits=%i) = ?", |
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[869] | 429 | out, in, samples, from, roar_codec2str(from), to, roar_codec2str(to), bits); |
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| 430 | |
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[875] | 431 | roar_conv_endian(out, in, samples, inbo, outbo, bits); |
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| 432 | nin = out; |
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[0] | 433 | |
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[875] | 434 | return roar_conv_signedness(out, in, samples, ins, outs, bits); |
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[0] | 435 | } |
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| 436 | |
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| 437 | int roar_conv_codec_s2u8 (void * out, void * in, int samples) { |
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| 438 | char * ip = in; |
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| 439 | unsigned char * op = out; |
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| 440 | int i; |
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| 441 | |
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| 442 | for(i = 0; i < samples; i++) |
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| 443 | op[i] = ip[i] + 128; |
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| 444 | |
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| 445 | return 0; |
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| 446 | } |
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| 447 | |
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[633] | 448 | int roar_conv_codec_s2u16 (void * out, void * in, int samples) { |
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| 449 | int16_t * ip = in; |
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| 450 | uint16_t * op = out; |
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| 451 | int i; |
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| 452 | |
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| 453 | for(i = 0; i < samples; i++) |
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| 454 | op[i] = ip[i] + 32768; |
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| 455 | |
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| 456 | return 0; |
---|
| 457 | } |
---|
[0] | 458 | |
---|
[846] | 459 | int roar_conv_codec_s2u32 (void * out, void * in, int samples) { |
---|
| 460 | int32_t * ip = in; |
---|
| 461 | uint32_t * op = out; |
---|
| 462 | int i; |
---|
| 463 | |
---|
| 464 | for(i = 0; i < samples; i++) |
---|
| 465 | op[i] = ip[i] + 2147483648U; |
---|
| 466 | |
---|
| 467 | return 0; |
---|
| 468 | } |
---|
| 469 | |
---|
| 470 | int roar_conv_codec_u2s8 (void * out, void * in, int samples) { |
---|
| 471 | unsigned char * ip = in; |
---|
| 472 | char * op = out; |
---|
| 473 | int i; |
---|
| 474 | |
---|
| 475 | for(i = 0; i < samples; i++) |
---|
| 476 | op[i] = ip[i] - 128; |
---|
| 477 | |
---|
| 478 | return 0; |
---|
| 479 | } |
---|
| 480 | |
---|
| 481 | int roar_conv_codec_u2s16 (void * out, void * in, int samples) { |
---|
| 482 | uint16_t * ip = in; |
---|
| 483 | int16_t * op = out; |
---|
| 484 | int i; |
---|
| 485 | |
---|
| 486 | for(i = 0; i < samples; i++) |
---|
| 487 | op[i] = ip[i] - 32768; |
---|
| 488 | |
---|
| 489 | return 0; |
---|
| 490 | } |
---|
| 491 | |
---|
| 492 | int roar_conv_codec_u2s32 (void * out, void * in, int samples) { |
---|
| 493 | uint32_t * ip = in; |
---|
| 494 | int32_t * op = out; |
---|
| 495 | int i; |
---|
| 496 | |
---|
| 497 | for(i = 0; i < samples; i++) |
---|
| 498 | op[i] = ip[i] - 2147483648U; |
---|
| 499 | |
---|
| 500 | return 0; |
---|
| 501 | } |
---|
| 502 | |
---|
[875] | 503 | |
---|
| 504 | int roar_conv_endian (void * out, void * in, int samples, int from, int to, int bits) { |
---|
| 505 | |
---|
| 506 | if ( bits == 8 ) { |
---|
| 507 | from = to = ROAR_CODEC_NATIVE_ENDIAN; |
---|
| 508 | |
---|
| 509 | } else if ( bits == 16 ) { |
---|
| 510 | if ( from == ROAR_CODEC_PDP ) |
---|
| 511 | from = ROAR_CODEC_LE; |
---|
| 512 | if ( to == ROAR_CODEC_PDP ) |
---|
| 513 | to = ROAR_CODEC_LE; |
---|
| 514 | } |
---|
| 515 | |
---|
[876] | 516 | ROAR_DBG("roar_conv_endian(out=%p, in=%p, samples=%i, from=%i, to=%i, bits=%i) = ?", out, in, samples, from, to, bits); |
---|
| 517 | |
---|
[875] | 518 | if ( from == to ) { |
---|
| 519 | if ( in != out ) { |
---|
| 520 | memcpy(out, in, samples * bits / 8); |
---|
| 521 | } |
---|
[876] | 522 | return 0; |
---|
| 523 | } else { |
---|
[875] | 524 | if ( bits == 16 ) { |
---|
| 525 | // in this case we can only have LE vs. BE, so, only need to swap: |
---|
[876] | 526 | ROAR_DBG("roar_conv_endian(*): Doing 16 bit byteswap"); |
---|
[875] | 527 | return roar_conv_endian_16(out, in, samples); |
---|
| 528 | } else if ( bits == 24 ) { |
---|
| 529 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
---|
| 530 | return roar_conv_endian_24(out, in, samples); |
---|
| 531 | } else { // what the hell is PDP eddines in 24 bit mode? |
---|
| 532 | return -1; |
---|
| 533 | } |
---|
| 534 | } else if ( bits == 32 ) { |
---|
| 535 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
---|
| 536 | return roar_conv_endian_32(out, in, samples); |
---|
| 537 | } else { // need to handle 32 PDP eddines here? |
---|
| 538 | return -1; |
---|
| 539 | } |
---|
| 540 | } else { |
---|
| 541 | return -1; |
---|
| 542 | } |
---|
| 543 | } |
---|
| 544 | |
---|
| 545 | return -1; |
---|
| 546 | } |
---|
| 547 | |
---|
| 548 | |
---|
[857] | 549 | int roar_conv_endian_16 (void * out, void * in, int samples) { |
---|
| 550 | char * ip = in; |
---|
| 551 | char * op = out; |
---|
| 552 | register char c; |
---|
| 553 | int i; |
---|
| 554 | |
---|
| 555 | samples *= 2; |
---|
| 556 | |
---|
| 557 | if ( out != in ) { |
---|
[858] | 558 | // printf("out != in\n"); |
---|
[857] | 559 | for(i = 0; i < samples; i += 2) { |
---|
[858] | 560 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
---|
[857] | 561 | op[i ] = ip[i+1]; |
---|
| 562 | op[i+1] = ip[i ]; |
---|
| 563 | } |
---|
| 564 | } else { |
---|
[858] | 565 | // printf("out == in\n"); |
---|
[857] | 566 | for(i = 0; i < samples; i += 2) { |
---|
| 567 | c = ip[i+1]; |
---|
| 568 | op[i+1] = ip[i ]; |
---|
| 569 | op[i ] = c; |
---|
| 570 | } |
---|
| 571 | } |
---|
| 572 | |
---|
| 573 | return 0; |
---|
| 574 | } |
---|
| 575 | |
---|
[859] | 576 | int roar_conv_endian_24 (void * out, void * in, int samples) { |
---|
| 577 | char * ip = in; |
---|
| 578 | char * op = out; |
---|
| 579 | register char c; |
---|
| 580 | int i; |
---|
| 581 | |
---|
| 582 | samples *= 3; |
---|
| 583 | |
---|
| 584 | if ( out != in ) { |
---|
| 585 | // printf("out != in\n"); |
---|
| 586 | for(i = 0; i < samples; i += 3) { |
---|
| 587 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
---|
| 588 | op[i ] = ip[i+2]; |
---|
| 589 | op[i+2] = ip[i ]; |
---|
| 590 | } |
---|
| 591 | } else { |
---|
| 592 | // printf("out == in\n"); |
---|
| 593 | for(i = 0; i < samples; i += 3) { |
---|
| 594 | c = ip[i+2]; |
---|
| 595 | op[i+2] = ip[i ]; |
---|
| 596 | op[i ] = c; |
---|
| 597 | } |
---|
| 598 | } |
---|
| 599 | |
---|
| 600 | return 0; |
---|
| 601 | } |
---|
| 602 | |
---|
[869] | 603 | int roar_conv_endian_32 (void * out, void * in, int samples) { |
---|
| 604 | int32_t * ip = in; |
---|
| 605 | int32_t * op = out; |
---|
| 606 | union { |
---|
| 607 | int32_t val; |
---|
| 608 | char data[4]; |
---|
| 609 | } c, h; |
---|
| 610 | int i; |
---|
| 611 | |
---|
| 612 | // may the holly optimizer save our souls! |
---|
| 613 | |
---|
| 614 | ROAR_DBG("roar_conv_endian_32(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
---|
| 615 | |
---|
| 616 | for (i = 0; i < samples; i++) { |
---|
| 617 | c.val = ip[i]; |
---|
| 618 | h.data[0] = c.data[3]; |
---|
| 619 | h.data[1] = c.data[2]; |
---|
| 620 | h.data[2] = c.data[1]; |
---|
| 621 | h.data[3] = c.data[0]; |
---|
| 622 | op[i] = h.val; |
---|
| 623 | } |
---|
| 624 | |
---|
| 625 | return 0; |
---|
| 626 | } |
---|
| 627 | |
---|
[0] | 628 | int roar_conv (void * out, void * in, int samples, struct roar_audio_info * from, struct roar_audio_info * to) { |
---|
| 629 | void * ip = in; |
---|
[1060] | 630 | void * real_out = NULL; |
---|
[1059] | 631 | size_t from_size, to_size; |
---|
[0] | 632 | |
---|
| 633 | // TODO: decide how to work around both in and out beeing to small to hold all |
---|
| 634 | // data between the steps. |
---|
| 635 | // for the moment: guess out >= in |
---|
| 636 | |
---|
[1060] | 637 | from_size = (from->bits * samples) / 8; |
---|
[1064] | 638 | to_size = ( to->bits * samples * to->rate * to->channels) / (8 * from->rate * from->channels); |
---|
| 639 | |
---|
| 640 | ROAR_DBG("roar_conv(*): size: %i->%i", from_size, to_size); |
---|
[1059] | 641 | |
---|
| 642 | if ( to_size < from_size ) { |
---|
| 643 | real_out = out; |
---|
| 644 | |
---|
| 645 | if ( (out = malloc(from_size)) == NULL ) |
---|
| 646 | return -1; |
---|
[1060] | 647 | |
---|
| 648 | ROAR_DBG("roar_conv(*): malloc(%i)=%p", (int)from_size, out); |
---|
[1059] | 649 | } |
---|
| 650 | |
---|
[876] | 651 | ROAR_DBG("roar_conv(*): bo conv: %i->%i(native)", ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN); |
---|
| 652 | |
---|
[875] | 653 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[876] | 654 | ROAR_DBG("roar_conv(*): doing bo input conv"); |
---|
[1059] | 655 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 656 | if ( to_size < from_size ) |
---|
| 657 | free(out); |
---|
[875] | 658 | return -1; |
---|
[1059] | 659 | } else { |
---|
[875] | 660 | ip = out; |
---|
[1059] | 661 | } |
---|
[875] | 662 | } |
---|
| 663 | |
---|
[0] | 664 | if ( from->bits != to->bits ) { |
---|
[1059] | 665 | if ( roar_conv_bits(out, ip, samples, from->bits, to->bits) == -1 ) { |
---|
| 666 | if ( to_size < from_size ) |
---|
| 667 | free(out); |
---|
[0] | 668 | return -1; |
---|
[1059] | 669 | } else { |
---|
[0] | 670 | ip = out; |
---|
[1059] | 671 | } |
---|
[0] | 672 | } |
---|
| 673 | |
---|
[875] | 674 | if ( ROAR_CODEC_IS_SIGNED(from->codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
[1059] | 675 | if ( roar_conv_signedness(out, ip, samples, ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), to->bits) == -1 ) { |
---|
| 676 | if ( to_size < from_size ) |
---|
| 677 | free(out); |
---|
[875] | 678 | return -1; |
---|
[1059] | 679 | } else { |
---|
[875] | 680 | ip = out; |
---|
[1059] | 681 | } |
---|
[875] | 682 | } |
---|
| 683 | |
---|
| 684 | /* |
---|
[852] | 685 | if ( from->codec != to->codec ) { |
---|
[876] | 686 | if ( roar_conv_codec (out, ip, samples, from->codec, to->codec, to->bits) == -1 ) |
---|
[852] | 687 | return -1; |
---|
| 688 | else |
---|
| 689 | ip = out; |
---|
| 690 | } |
---|
[875] | 691 | */ |
---|
[852] | 692 | |
---|
[386] | 693 | if ( from->rate != to->rate ) { |
---|
[1059] | 694 | if ( roar_conv_rate(out, ip, samples, from->rate, to->rate, to->bits, from->channels) == -1 ) { |
---|
[1060] | 695 | ROAR_DBG("roar_conv(*): failed to convert rate %i->%i (%ich%ibits)", from->rate, to->rate, to->bits, from->channels); |
---|
[1064] | 696 | if ( to_size < from_size ) |
---|
| 697 | free(out); |
---|
[0] | 698 | return -1; |
---|
[1059] | 699 | } else { |
---|
[0] | 700 | ip = out; |
---|
[1064] | 701 | samples = (samples * to->rate) / from->rate; |
---|
[1059] | 702 | } |
---|
[0] | 703 | } |
---|
| 704 | |
---|
[386] | 705 | if ( from->channels != to->channels ) { |
---|
[1059] | 706 | if ( roar_conv_chans(out, ip, samples, from->channels, to->channels, to->bits) == -1 ) { |
---|
| 707 | if ( to_size < from_size ) |
---|
| 708 | free(out); |
---|
[0] | 709 | return -1; |
---|
[1059] | 710 | } else { |
---|
[0] | 711 | ip = out; |
---|
[1059] | 712 | } |
---|
[0] | 713 | } |
---|
| 714 | |
---|
[875] | 715 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[1059] | 716 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 717 | if ( to_size < from_size ) |
---|
| 718 | free(out); |
---|
[875] | 719 | return -1; |
---|
[1059] | 720 | } else { |
---|
[875] | 721 | ip = out; |
---|
[1059] | 722 | } |
---|
| 723 | } |
---|
| 724 | |
---|
| 725 | if ( to_size < from_size ) { |
---|
[1060] | 726 | ROAR_DBG("roar_conv(*): memcpy(%p, %p, %i) = ?", real_out, out, (int)to_size); |
---|
[1059] | 727 | memcpy(real_out, out, to_size); |
---|
| 728 | free(out); |
---|
[1064] | 729 | ROAR_DBG("roar_conv(*): free(%p): OK!", out); |
---|
[875] | 730 | } |
---|
| 731 | |
---|
[0] | 732 | return 0; |
---|
| 733 | } |
---|
| 734 | |
---|
[2094] | 735 | int roar_conv2(void * out, void * in, |
---|
| 736 | size_t inlen, |
---|
| 737 | struct roar_audio_info * from, struct roar_audio_info * to, |
---|
| 738 | size_t bufsize) { |
---|
| 739 | size_t samples; |
---|
| 740 | size_t needed_buffer; |
---|
[2096] | 741 | void * cin = in; |
---|
| 742 | struct roar_audio_info cinfo; |
---|
[2098] | 743 | int need_signed = 0; |
---|
[2096] | 744 | |
---|
| 745 | memcpy(&cinfo, from, sizeof(cinfo)); |
---|
[383] | 746 | |
---|
[2094] | 747 | // calcumate number of input samples: |
---|
[2099] | 748 | samples = (inlen * 8) / (from->bits); |
---|
| 749 | |
---|
| 750 | ROAR_WARN("roar_conv2(*): input samples: %i", samples); |
---|
[2094] | 751 | |
---|
| 752 | // calculate size per frame |
---|
| 753 | needed_buffer = ROAR_MAX(from->channels, to->channels) * ROAR_MAX(from->bits, to->bits) / 8; |
---|
| 754 | |
---|
| 755 | needed_buffer *= samples; |
---|
[2099] | 756 | needed_buffer /= from->channels; |
---|
[2094] | 757 | |
---|
| 758 | if ( from->rate < to->rate ) |
---|
| 759 | needed_buffer *= (float)to->rate/(float)from->rate; |
---|
| 760 | |
---|
[2098] | 761 | ROAR_WARN("roar_conv2(*): needed_buffer=%u, bufsize=%u", needed_buffer, bufsize); |
---|
| 762 | |
---|
[2094] | 763 | // chjeck if we have enogth RAM to convert |
---|
| 764 | if ( needed_buffer > bufsize ) |
---|
| 765 | return -1; |
---|
| 766 | |
---|
[2098] | 767 | if ( from->rate != to->rate || from->channels != to->channels ) |
---|
| 768 | need_signed = 1; |
---|
| 769 | |
---|
| 770 | ROAR_WARN("roar_conv2(*): need_signed=%i", need_signed); |
---|
| 771 | |
---|
[2096] | 772 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[2098] | 773 | ROAR_WARN("roar_conv2(*): doing bo input conv"); |
---|
[2096] | 774 | if ( roar_conv_endian(out, cin, samples, |
---|
| 775 | ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 776 | return -1; |
---|
| 777 | } |
---|
| 778 | cin = out; |
---|
| 779 | } |
---|
| 780 | |
---|
| 781 | if ( to->bits > from->bits ) { |
---|
[2098] | 782 | ROAR_WARN("roar_conv2(*): bits: %i->%i", from->bits, to->bits); |
---|
[2096] | 783 | if ( roar_conv_bits(out, cin, samples, from->bits, to->bits) == -1 ) |
---|
| 784 | return -1; |
---|
| 785 | |
---|
| 786 | cin = out; |
---|
| 787 | cinfo.bits = to->bits; |
---|
| 788 | } |
---|
| 789 | |
---|
[2098] | 790 | if ( need_signed && ! ROAR_CODEC_IS_SIGNED(from->codec) ) { |
---|
| 791 | ROAR_WARN("roar_conv2(*): sign: unsigned->signed"); |
---|
| 792 | if ( roar_conv_signedness(out, cin, samples, |
---|
| 793 | ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), |
---|
| 794 | cinfo.bits) == -1 ) |
---|
| 795 | return -1; |
---|
| 796 | |
---|
| 797 | cin = out; |
---|
| 798 | cinfo.codec = ROAR_CODEC_PCM_S_LE; // just a signed PCM, which is of no intrest |
---|
| 799 | } |
---|
| 800 | |
---|
[2096] | 801 | if ( to->channels > from->channels ) { |
---|
[2098] | 802 | ROAR_WARN("roar_conv2(*): channels: %i->%i", from->channels, to->channels); |
---|
[2099] | 803 | if ( roar_conv_chans(out, cin, samples/from->channels, from->channels, to->channels, cinfo.bits) == -1 ) |
---|
[2096] | 804 | return -1; |
---|
| 805 | |
---|
| 806 | cin = out; |
---|
| 807 | cinfo.channels = to->channels; |
---|
| 808 | } |
---|
| 809 | |
---|
[2098] | 810 | if ( cinfo.channels != to->channels ) { |
---|
| 811 | ROAR_WARN("roar_conv2(*): channels: %i->%i", cinfo.channels, to->channels); |
---|
| 812 | if ( roar_conv_chans(out, cin, samples, cinfo.channels, to->channels, cinfo.bits) == -1 ) |
---|
| 813 | return -1; |
---|
| 814 | |
---|
| 815 | cin = out; |
---|
| 816 | cinfo.channels = to->channels; |
---|
| 817 | } |
---|
| 818 | |
---|
| 819 | if ( ROAR_CODEC_IS_SIGNED(cinfo.codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
| 820 | ROAR_WARN("roar_conv2(*): sign: ?(%i)->?(%i)", ROAR_CODEC_IS_SIGNED(cinfo.codec), ROAR_CODEC_IS_SIGNED(to->codec)); |
---|
[2097] | 821 | if ( roar_conv_signedness(out, cin, samples, |
---|
[2098] | 822 | ROAR_CODEC_IS_SIGNED(cinfo.codec), ROAR_CODEC_IS_SIGNED(to->codec), |
---|
[2097] | 823 | cinfo.bits) == -1 ) |
---|
| 824 | return -1; |
---|
| 825 | |
---|
| 826 | cin = out; |
---|
| 827 | cinfo.codec = to->codec; |
---|
| 828 | } |
---|
[2096] | 829 | |
---|
| 830 | if ( cinfo.bits != to->bits ) { |
---|
[2098] | 831 | ROAR_WARN("roar_conv2(*): bits: %i->%i", cinfo.bits, to->bits); |
---|
[2096] | 832 | if ( roar_conv_bits(out, cin, samples, cinfo.bits, to->bits) == -1 ) |
---|
| 833 | return -1; |
---|
| 834 | |
---|
| 835 | cin = out; |
---|
| 836 | cinfo.bits = to->bits; |
---|
| 837 | } |
---|
| 838 | |
---|
| 839 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[2098] | 840 | ROAR_WARN("roar_conv2(*): doing bo output conv"); |
---|
[2096] | 841 | if ( roar_conv_endian(out, cin, samples, |
---|
| 842 | ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 843 | return -1; |
---|
| 844 | } |
---|
| 845 | cin = out; |
---|
| 846 | } |
---|
| 847 | |
---|
[2098] | 848 | ROAR_WARN("roar_conv2(*) = 0"); |
---|
[2096] | 849 | return 0; |
---|
[2094] | 850 | } |
---|
[383] | 851 | |
---|
| 852 | int roar_conv_poly4_16 (int16_t * out, int16_t * in, size_t olen, size_t ilen) { |
---|
[386] | 853 | return roar_conv_poly4_16s(out, in, olen, ilen, (float)ilen/olen); |
---|
| 854 | } |
---|
| 855 | |
---|
| 856 | int roar_conv_poly4_16s (int16_t * out, int16_t * in, size_t olen, size_t ilen, float step) { |
---|
[383] | 857 | float poly[4]; |
---|
| 858 | float data[4]; |
---|
| 859 | float t = 0; |
---|
| 860 | int16_t * ci = in; |
---|
| 861 | int io, ii = 0; |
---|
| 862 | int i; |
---|
| 863 | |
---|
[386] | 864 | printf("step=%f\n", step); |
---|
| 865 | |
---|
[383] | 866 | // we can not make a poly4 with less than 4 points ;) |
---|
| 867 | if ( ilen < 4 ) |
---|
| 868 | return -1; |
---|
| 869 | |
---|
| 870 | for (i = 0; i < 4; i++) |
---|
| 871 | data[i] = ci[i]; |
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| 872 | roar_math_mkpoly_4x4(poly, data); |
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| 873 | /* |
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| 874 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
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| 875 | data[0], data[1], data[2], data[3], |
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| 876 | poly[0], poly[1], poly[2], poly[3] |
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| 877 | ); |
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| 878 | */ |
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| 879 | |
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| 880 | //0 1 2 3 |
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| 881 | |
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| 882 | for (io = 0; io < olen; io++) { |
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| 883 | // printf("t=%f\n", t); |
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| 884 | out[io] = roar_math_cvpoly_4x4(poly, t); |
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| 885 | t += step; |
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| 886 | if ( t > 2 ) { // we need a new ploynome |
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| 887 | // printf("t > 2, need new data\n"); |
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| 888 | if ( (ii + 4) < ilen ) { // else: end of block. |
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| 889 | t -= 1; |
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| 890 | // printf("new data: ii=%i\n", ii); |
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| 891 | ii++; |
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| 892 | ci++; |
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| 893 | for (i = 0; i < 4; i++) |
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| 894 | data[i] = ci[i]; |
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| 895 | roar_math_mkpoly_4x4(poly, data); |
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| 896 | /* |
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| 897 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
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| 898 | data[0], data[1], data[2], data[3], |
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| 899 | poly[0], poly[1], poly[2], poly[3] |
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| 900 | ); |
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| 901 | */ |
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| 902 | } |
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| 903 | } |
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| 904 | } |
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| 905 | |
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[386] | 906 | printf("io=%i\n", io); |
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| 907 | |
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[383] | 908 | return 0; |
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| 909 | } |
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| 910 | |
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[0] | 911 | //ll |
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