[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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[1367] | 35 | #include "libroardsp.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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[2501] | 56 | case 0x34: return roar_conv_bits_24to32(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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[2501] | 113 | int roar_conv_bits_24to32 (void * out, void * in, int samples) { |
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| 114 | uint8_t * ip = (uint8_t*)in; |
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| 115 | int32_t * op = (int32_t*)out; |
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| 116 | int i; |
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| 117 | union { |
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| 118 | int32_t i; |
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| 119 | uint8_t c[4]; |
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| 120 | } t; |
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| 121 | |
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| 122 | ROAR_DBG("roar_conv_bits_24to32(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 123 | |
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| 124 | #if (BYTE_ORDER == BIG_ENDIAN) || (BYTE_ORDER == LITTLE_ENDIAN) |
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| 125 | t.i = 0; |
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| 126 | #else |
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| 127 | ROAR_DBG("roar_conv_bits_24to32(out=%p, in=%p, samples=%i) = -1", out, in, samples); |
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| 128 | return -1; |
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| 129 | #endif |
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| 130 | |
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| 131 | samples--; |
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| 132 | ip += 3 * samples; |
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| 133 | |
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| 134 | for (i = samples; i >= 0; i--) { |
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| 135 | #if BYTE_ORDER == BIG_ENDIAN |
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| 136 | t.c[0] = *(ip--); |
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| 137 | t.c[1] = *(ip--); |
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| 138 | t.c[2] = *(ip--); |
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| 139 | #elif BYTE_ORDER == LITTLE_ENDIAN |
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| 140 | t.c[2] = *(ip--); |
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| 141 | t.c[3] = *(ip--); |
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| 142 | t.c[1] = *(ip--); |
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| 143 | #endif |
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| 144 | ROAR_DBG("roar_conv_bits_24to32(*): i=%i, t.i=0x%.8X", i, t.i); |
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| 145 | op[i] = t.i; |
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| 146 | } |
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| 147 | |
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| 148 | ROAR_DBG("roar_conv_bits_24to32(out=%p, in=%p, samples=%i) = 0", out, in, samples); |
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| 149 | return 0; |
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| 150 | } |
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| 151 | |
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[845] | 152 | int roar_conv_bits_32to8 (void * out, void * in, int samples) { |
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| 153 | int32_t * ip = (int32_t*)in; |
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| 154 | char * op = (char *)out; |
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| 155 | int i; |
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| 156 | |
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| 157 | for (i = 0; i < samples; i++) |
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| 158 | op[i] = ip[i] >> 24; |
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| 159 | |
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| 160 | return 0; |
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| 161 | } |
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| 162 | |
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| 163 | int roar_conv_bits_32to16 (void * out, void * in, int samples) { |
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| 164 | int32_t * ip = (int32_t*)in; |
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| 165 | int16_t * op = (int16_t*)out; |
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| 166 | int i; |
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| 167 | |
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| 168 | for (i = 0; i < samples; i++) |
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| 169 | op[i] = ip[i] >> 16; |
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| 170 | |
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| 171 | return 0; |
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| 172 | } |
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[0] | 173 | |
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| 174 | int roar_conv_chans (void * out, void * in, int samples, int from, int to, int bits) { |
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[850] | 175 | if ( from == to ) { |
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| 176 | if ( in == out ) |
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| 177 | return 0; |
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| 178 | |
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| 179 | memcpy(out, in, samples * from * bits / 8); |
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| 180 | return 0; |
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| 181 | } |
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| 182 | |
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| 183 | switch (bits) { |
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| 184 | case 8: |
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| 185 | switch (from) { |
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| 186 | case 1: |
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| 187 | switch (to) { |
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| 188 | case 2: return roar_conv_chans_1to28(out, in, samples); |
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| 189 | default: return roar_conv_chans_1ton8(out, in, samples, to); |
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| 190 | } |
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| 191 | break; |
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| 192 | case 2: |
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| 193 | switch (to) { |
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| 194 | case 1: return roar_conv_chans_2to18(out, in, samples); |
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| 195 | default: return -1; |
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| 196 | } |
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| 197 | break; |
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| 198 | default: |
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| 199 | switch (to) { |
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| 200 | case 1: return roar_conv_chans_nto18(out, in, samples, from); |
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| 201 | default: return -1; |
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| 202 | } |
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| 203 | } |
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| 204 | break; |
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| 205 | case 16: |
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| 206 | switch (from) { |
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| 207 | case 1: |
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| 208 | switch (to) { |
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| 209 | case 2: return roar_conv_chans_1to216(out, in, samples); |
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| 210 | default: return roar_conv_chans_1ton16(out, in, samples, to); |
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| 211 | } |
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| 212 | break; |
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| 213 | case 2: |
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| 214 | switch (to) { |
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| 215 | case 1: return roar_conv_chans_2to116(out, in, samples); |
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[2741] | 216 | case 3: return roar_conv_chans_2to316(out, in, samples); |
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[850] | 217 | default: return -1; |
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| 218 | } |
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| 219 | break; |
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| 220 | default: |
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| 221 | switch (to) { |
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| 222 | case 1: return roar_conv_chans_nto116(out, in, samples, from); |
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| 223 | default: return -1; |
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| 224 | } |
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| 225 | } |
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| 226 | break; |
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| 227 | default: return -1; |
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[0] | 228 | } |
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| 229 | |
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| 230 | return -1; |
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| 231 | } |
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| 232 | |
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| 233 | int roar_conv_chans_1ton8 (void * out, void * in, int samples, int to) { |
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| 234 | char * ip = (char*) in, * op = (char*) out; |
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| 235 | int i; |
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| 236 | int c; |
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| 237 | |
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| 238 | for (i = samples - 1; i >= 0; i--) |
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| 239 | for (c = to - 1; c >= 0; c--) |
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| 240 | op[i*to + c] = ip[i]; |
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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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[850] | 245 | int roar_conv_chans_1to28 (void * out, void * in, int samples) { |
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| 246 | char * ip = (char*) in, * op = (char*) out; |
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[852] | 247 | int i, h; |
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[850] | 248 | |
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[852] | 249 | samples--; |
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[850] | 250 | |
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[852] | 251 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 252 | op[i + 0] = ip[h]; |
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| 253 | op[i + 1] = ip[h]; |
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[850] | 254 | } |
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| 255 | |
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| 256 | return 0; |
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| 257 | } |
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| 258 | |
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[0] | 259 | int roar_conv_chans_1ton16 (void * out, void * in, int samples, int to) { |
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| 260 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 261 | int i; |
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| 262 | int c; |
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| 263 | |
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| 264 | for (i = samples - 1; i >= 0; i--) |
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| 265 | for (c = to - 1; c >= 0; c--) |
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| 266 | op[i*to + c] = ip[i]; |
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| 267 | |
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| 268 | return 0; |
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| 269 | } |
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| 270 | |
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[850] | 271 | int roar_conv_chans_1to216 (void * out, void * in, int samples) { |
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| 272 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 273 | int i, h; |
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[850] | 274 | |
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[852] | 275 | samples--; |
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[850] | 276 | |
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[852] | 277 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 278 | op[i + 0] = ip[h]; |
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| 279 | op[i + 1] = ip[h]; |
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[850] | 280 | } |
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| 281 | |
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| 282 | return 0; |
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| 283 | } |
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| 284 | |
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[626] | 285 | int roar_conv_chans_nto18 (void * out, void * in, int samples, int from) { |
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| 286 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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| 287 | int i; |
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| 288 | int c; |
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| 289 | register int s; |
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| 290 | |
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| 291 | samples /= from; |
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| 292 | |
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| 293 | for (i = samples - 1; i >= 0; i--) { |
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| 294 | s = 0; |
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| 295 | |
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| 296 | for (c = 0; c < from; c++) |
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| 297 | s += ip[i*from + c]; |
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| 298 | |
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| 299 | s /= from; |
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| 300 | op[i] = s; |
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| 301 | } |
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| 302 | |
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| 303 | return 0; |
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| 304 | } |
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| 305 | |
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[850] | 306 | int roar_conv_chans_2to18 (void * out, void * in, int samples) { |
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| 307 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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[852] | 308 | int i, h; |
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[850] | 309 | |
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| 310 | samples -= 2; |
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| 311 | |
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[852] | 312 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) |
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| 313 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[850] | 314 | |
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| 315 | return 0; |
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| 316 | } |
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| 317 | |
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[624] | 318 | int roar_conv_chans_nto116 (void * out, void * in, int samples, int from) { |
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| 319 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 320 | int i; |
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| 321 | int c; |
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| 322 | register int s; |
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| 323 | |
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| 324 | samples /= from; |
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| 325 | |
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| 326 | for (i = samples - 1; i >= 0; i--) { |
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| 327 | s = 0; |
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| 328 | |
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| 329 | for (c = 0; c < from; c++) |
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| 330 | s += ip[i*from + c]; |
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| 331 | |
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| 332 | s /= from; |
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| 333 | op[i] = s; |
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| 334 | } |
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| 335 | |
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| 336 | return 0; |
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| 337 | } |
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| 338 | |
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[850] | 339 | int roar_conv_chans_2to116 (void * out, void * in, int samples) { |
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| 340 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 341 | int i, h; |
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[850] | 342 | |
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[1064] | 343 | ROAR_DBG("roar_conv_chans_2to116(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 344 | |
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[850] | 345 | samples -= 2; |
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| 346 | |
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[1064] | 347 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) { |
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| 348 | 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] | 349 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[1064] | 350 | } |
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[850] | 351 | |
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| 352 | return 0; |
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| 353 | } |
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| 354 | |
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[2741] | 355 | int roar_conv_chans_2to38 (void * out, void * in, int samples); |
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| 356 | int roar_conv_chans_2to316 (void * out, void * in, int samples) { |
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| 357 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 358 | int i, h; |
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| 359 | |
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| 360 | samples -= 2; |
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| 361 | |
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| 362 | i = samples; |
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| 363 | h = (samples / 2) * 3; |
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| 364 | |
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| 365 | for (; i >= 0; i -= 2, h -= 3) { |
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| 366 | op[h+0] = ip[i+0]; |
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| 367 | op[h+1] = ip[i+1]; |
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| 368 | op[h+2] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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| 369 | } |
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| 370 | |
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| 371 | return 0; |
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| 372 | } |
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| 373 | |
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| 374 | int roar_conv_chans_2to48 (void * out, void * in, int samples); |
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| 375 | int roar_conv_chans_2to416 (void * out, void * in, int samples); |
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| 376 | int roar_conv_chans_2to58 (void * out, void * in, int samples); |
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| 377 | int roar_conv_chans_2to516 (void * out, void * in, int samples); |
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| 378 | int roar_conv_chans_2to68 (void * out, void * in, int samples); |
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| 379 | int roar_conv_chans_2to616 (void * out, void * in, int samples); |
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| 380 | |
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| 381 | |
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[0] | 382 | int roar_conv_rate (void * out, void * in, int samples, int from, int to, int bits, int channels) { |
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[2386] | 383 | #ifdef ROAR_HAVE_LIBSAMPLERATE |
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| 384 | return roar_conv_rate_SRC(out, in, samples, from, to, bits, channels); |
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| 385 | #else |
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[0] | 386 | if ( bits == 8 ) |
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| 387 | return roar_conv_rate_8(out, in, samples, from, to, channels); |
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| 388 | |
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| 389 | if ( bits == 16 ) |
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| 390 | return roar_conv_rate_16(out, in, samples, from, to, channels); |
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| 391 | |
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| 392 | return -1; |
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[2386] | 393 | #endif |
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[0] | 394 | } |
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| 395 | |
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| 396 | int roar_conv_rate_8 (void * out, void * in, int samples, int from, int to, int channels) { |
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| 397 | return -1; |
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| 398 | } |
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[33] | 399 | |
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[0] | 400 | int roar_conv_rate_16 (void * out, void * in, int samples, int from, int to, int channels) { |
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[1061] | 401 | if ( from > to ) { |
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| 402 | switch (channels) { |
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| 403 | case 1: |
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| 404 | return roar_conv_rate_161zoh(out, in, samples, from, to); |
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| 405 | case 2: |
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[1064] | 406 | return roar_conv_rate_162zoh(out, in, samples, from, to); |
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[1061] | 407 | default: |
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| 408 | return -1; |
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| 409 | } |
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| 410 | } else { |
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| 411 | if ( channels == 1 ) { |
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| 412 | printf("roar_conv_rate_16(): samples=%i -> %i, rate=%i -> %i\n", samples*from/to, samples, from, to); |
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| 413 | return roar_conv_poly4_16s((int16_t*) out, (int16_t*) in, samples, samples*from/to, (float)from/to); |
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| 414 | // return roar_conv_poly4_16((int16_t*) out, (int16_t*) in, samples*to/from, samples); |
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| 415 | } |
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[386] | 416 | } |
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| 417 | |
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[0] | 418 | return -1; |
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| 419 | } |
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| 420 | |
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[1061] | 421 | int roar_conv_rate_161zoh(void * out, void * in, int samples, int from, int to) { |
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| 422 | int16_t * ip = in; |
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| 423 | int16_t * op = out; |
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| 424 | float t = 0; |
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| 425 | float step = (float)to/from; |
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| 426 | int i; |
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| 427 | |
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| 428 | for (i= 0; i < samples; i++) { |
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| 429 | op[(int)t] = ip[i]; |
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| 430 | t += step; |
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| 431 | } |
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| 432 | |
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| 433 | return 0; |
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| 434 | } |
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| 435 | |
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[1064] | 436 | int roar_conv_rate_162zoh(void * out, void * in, int samples, int from, int to) { |
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| 437 | int16_t * ip = in; |
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| 438 | int16_t * op = out; |
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| 439 | float t = 0; |
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| 440 | float step = (float)to/from; |
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| 441 | int i; |
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| 442 | |
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| 443 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
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| 444 | samples /= 2; |
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[2386] | 445 | // samples -= 1; |
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[1064] | 446 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
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| 447 | |
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| 448 | for (i= 0; i < samples; i++) { |
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| 449 | ROAR_DBG("roar_conv_rate_162zoh(*): t=%f, i=%i // op[%i] = ip[%i]", t, i, 2*(int)t, 2*i); |
---|
| 450 | op[2*(int)t ] = ip[2*i ]; |
---|
| 451 | op[2*(int)t + 1] = ip[2*i + 1]; |
---|
| 452 | t += step; |
---|
| 453 | } |
---|
| 454 | |
---|
| 455 | return 0; |
---|
| 456 | } |
---|
| 457 | |
---|
[2386] | 458 | int roar_conv_rate_SRC (void * out, void * in, int samples, int from, int to, int bits, int channels) { |
---|
| 459 | #ifdef ROAR_HAVE_LIBSAMPLERATE |
---|
| 460 | double radio = (double) to / (double) from; |
---|
| 461 | int outsamples = radio * samples; |
---|
| 462 | float * inf = malloc(samples*sizeof(float)); |
---|
| 463 | float * outf = malloc(outsamples*sizeof(float)); |
---|
| 464 | int i; |
---|
| 465 | SRC_DATA srcdata; |
---|
| 466 | |
---|
| 467 | ROAR_DBG("roar_conv_rate_SRC(*): radio=%lf, samples=%i, outsamples=%i", radio, samples, outsamples); |
---|
| 468 | |
---|
| 469 | if ( inf == NULL ) { |
---|
| 470 | if ( outf != NULL ) |
---|
| 471 | free(outf); |
---|
| 472 | |
---|
| 473 | return -1; |
---|
| 474 | } |
---|
| 475 | |
---|
| 476 | if ( outf == NULL ) { |
---|
| 477 | if ( inf != NULL ) |
---|
| 478 | free(inf); |
---|
| 479 | |
---|
| 480 | return -1; |
---|
| 481 | } |
---|
| 482 | |
---|
| 483 | switch (bits) { |
---|
| 484 | case 8: |
---|
| 485 | for (i = 0; i < samples; i++) |
---|
| 486 | inf[i] = *(((int8_t *)in)+i) / 128.0; |
---|
| 487 | break; |
---|
| 488 | case 16: |
---|
| 489 | for (i = 0; i < samples; i++) |
---|
| 490 | inf[i] = *(((int16_t*)in)+i) / 32768.0; |
---|
| 491 | break; |
---|
| 492 | case 32: |
---|
| 493 | for (i = 0; i < samples; i++) |
---|
| 494 | inf[i] = *(((int32_t*)in)+i) / 2147483648.0; |
---|
| 495 | break; |
---|
| 496 | default: |
---|
| 497 | free(outf); |
---|
| 498 | free(inf); |
---|
| 499 | return -1; |
---|
| 500 | } |
---|
| 501 | |
---|
| 502 | srcdata.data_in = inf; |
---|
| 503 | srcdata.data_out = outf; |
---|
| 504 | srcdata.input_frames = samples/channels; |
---|
| 505 | srcdata.output_frames = outsamples/channels; |
---|
| 506 | srcdata.src_ratio = radio; |
---|
| 507 | |
---|
[2388] | 508 | if ( src_simple(&srcdata, SRC_ZERO_ORDER_HOLD, channels) != 0 ) { |
---|
[2386] | 509 | free(outf); |
---|
| 510 | free(inf); |
---|
| 511 | return -1; |
---|
| 512 | } |
---|
| 513 | |
---|
| 514 | switch (bits) { |
---|
| 515 | case 8: |
---|
[2388] | 516 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 517 | *(((int8_t *)out)+i) = outf[i] * 128.0; |
---|
| 518 | break; |
---|
| 519 | case 16: |
---|
[2388] | 520 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 521 | *(((int16_t*)out)+i) = outf[i] * 32768.0; |
---|
| 522 | break; |
---|
| 523 | case 32: |
---|
[2388] | 524 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 525 | *(((int32_t*)out)+i) = outf[i] * 2147483648.0; |
---|
| 526 | break; |
---|
| 527 | // no errors here, they are handled above |
---|
| 528 | } |
---|
| 529 | |
---|
| 530 | free(outf); |
---|
| 531 | free(inf); |
---|
| 532 | |
---|
| 533 | return 0; |
---|
| 534 | #else |
---|
| 535 | return -1; |
---|
| 536 | #endif |
---|
| 537 | } |
---|
| 538 | |
---|
[875] | 539 | int roar_conv_signedness (void * out, void * in, int samples, int from, int to, int bits) { |
---|
| 540 | |
---|
| 541 | if ( from != to ) { |
---|
| 542 | if ( from && !to ) { |
---|
| 543 | switch (bits) { |
---|
| 544 | case 8: roar_conv_codec_s2u8( out, in, samples); break; |
---|
| 545 | case 16: roar_conv_codec_s2u16(out, in, samples); break; |
---|
| 546 | case 32: roar_conv_codec_s2u32(out, in, samples); break; |
---|
| 547 | default: |
---|
| 548 | errno = ENOSYS; |
---|
| 549 | return -1; |
---|
| 550 | } |
---|
| 551 | } else if ( !from && to ) { |
---|
| 552 | switch (bits) { |
---|
| 553 | case 8: roar_conv_codec_u2s8( out, in, samples); break; |
---|
| 554 | case 16: roar_conv_codec_u2s16(out, in, samples); break; |
---|
| 555 | case 32: roar_conv_codec_u2s32(out, in, samples); break; |
---|
| 556 | default: |
---|
| 557 | errno = ENOSYS; |
---|
| 558 | return -1; |
---|
| 559 | } |
---|
| 560 | } else { |
---|
[876] | 561 | return -1; |
---|
| 562 | } |
---|
| 563 | } else { |
---|
| 564 | if ( out == in ) |
---|
| 565 | return 0; |
---|
[875] | 566 | |
---|
[876] | 567 | memcpy(out, in, samples * bits / 8); |
---|
| 568 | return 0; |
---|
[875] | 569 | } |
---|
| 570 | |
---|
[876] | 571 | return 0; |
---|
[875] | 572 | } |
---|
| 573 | |
---|
[876] | 574 | int roar_conv_codec (void * out, void * in, int samples, int from, int to, int bits) { |
---|
[0] | 575 | int inbo = ROAR_CODEC_BYTE_ORDER(from), outbo = ROAR_CODEC_BYTE_ORDER(to); |
---|
| 576 | int ins = ROAR_CODEC_IS_SIGNED(from), outs = ROAR_CODEC_IS_SIGNED(to); |
---|
[858] | 577 | void * nin = in; |
---|
[0] | 578 | |
---|
[858] | 579 | |
---|
[876] | 580 | ROAR_DBG("roar_conv_codec(out=%p, in=%p, samples=%i, from=%i(%s), to=%i(%s), bits=%i) = ?", |
---|
[869] | 581 | out, in, samples, from, roar_codec2str(from), to, roar_codec2str(to), bits); |
---|
| 582 | |
---|
[875] | 583 | roar_conv_endian(out, in, samples, inbo, outbo, bits); |
---|
| 584 | nin = out; |
---|
[0] | 585 | |
---|
[875] | 586 | return roar_conv_signedness(out, in, samples, ins, outs, bits); |
---|
[0] | 587 | } |
---|
| 588 | |
---|
| 589 | int roar_conv_codec_s2u8 (void * out, void * in, int samples) { |
---|
| 590 | char * ip = in; |
---|
| 591 | unsigned char * op = out; |
---|
| 592 | int i; |
---|
| 593 | |
---|
| 594 | for(i = 0; i < samples; i++) |
---|
| 595 | op[i] = ip[i] + 128; |
---|
| 596 | |
---|
| 597 | return 0; |
---|
| 598 | } |
---|
| 599 | |
---|
[633] | 600 | int roar_conv_codec_s2u16 (void * out, void * in, int samples) { |
---|
| 601 | int16_t * ip = in; |
---|
| 602 | uint16_t * op = out; |
---|
| 603 | int i; |
---|
| 604 | |
---|
| 605 | for(i = 0; i < samples; i++) |
---|
| 606 | op[i] = ip[i] + 32768; |
---|
| 607 | |
---|
| 608 | return 0; |
---|
| 609 | } |
---|
[0] | 610 | |
---|
[846] | 611 | int roar_conv_codec_s2u32 (void * out, void * in, int samples) { |
---|
| 612 | int32_t * ip = in; |
---|
| 613 | uint32_t * op = out; |
---|
| 614 | int i; |
---|
| 615 | |
---|
| 616 | for(i = 0; i < samples; i++) |
---|
| 617 | op[i] = ip[i] + 2147483648U; |
---|
| 618 | |
---|
| 619 | return 0; |
---|
| 620 | } |
---|
| 621 | |
---|
| 622 | int roar_conv_codec_u2s8 (void * out, void * in, int samples) { |
---|
| 623 | unsigned char * ip = in; |
---|
| 624 | char * op = out; |
---|
| 625 | int i; |
---|
| 626 | |
---|
| 627 | for(i = 0; i < samples; i++) |
---|
| 628 | op[i] = ip[i] - 128; |
---|
| 629 | |
---|
| 630 | return 0; |
---|
| 631 | } |
---|
| 632 | |
---|
| 633 | int roar_conv_codec_u2s16 (void * out, void * in, int samples) { |
---|
| 634 | uint16_t * ip = in; |
---|
| 635 | int16_t * op = out; |
---|
| 636 | int i; |
---|
| 637 | |
---|
| 638 | for(i = 0; i < samples; i++) |
---|
| 639 | op[i] = ip[i] - 32768; |
---|
| 640 | |
---|
| 641 | return 0; |
---|
| 642 | } |
---|
| 643 | |
---|
| 644 | int roar_conv_codec_u2s32 (void * out, void * in, int samples) { |
---|
| 645 | uint32_t * ip = in; |
---|
| 646 | int32_t * op = out; |
---|
| 647 | int i; |
---|
| 648 | |
---|
| 649 | for(i = 0; i < samples; i++) |
---|
| 650 | op[i] = ip[i] - 2147483648U; |
---|
| 651 | |
---|
| 652 | return 0; |
---|
| 653 | } |
---|
| 654 | |
---|
[875] | 655 | |
---|
| 656 | int roar_conv_endian (void * out, void * in, int samples, int from, int to, int bits) { |
---|
| 657 | |
---|
| 658 | if ( bits == 8 ) { |
---|
| 659 | from = to = ROAR_CODEC_NATIVE_ENDIAN; |
---|
| 660 | |
---|
| 661 | } else if ( bits == 16 ) { |
---|
| 662 | if ( from == ROAR_CODEC_PDP ) |
---|
| 663 | from = ROAR_CODEC_LE; |
---|
| 664 | if ( to == ROAR_CODEC_PDP ) |
---|
| 665 | to = ROAR_CODEC_LE; |
---|
| 666 | } |
---|
| 667 | |
---|
[876] | 668 | ROAR_DBG("roar_conv_endian(out=%p, in=%p, samples=%i, from=%i, to=%i, bits=%i) = ?", out, in, samples, from, to, bits); |
---|
| 669 | |
---|
[875] | 670 | if ( from == to ) { |
---|
| 671 | if ( in != out ) { |
---|
| 672 | memcpy(out, in, samples * bits / 8); |
---|
| 673 | } |
---|
[876] | 674 | return 0; |
---|
| 675 | } else { |
---|
[875] | 676 | if ( bits == 16 ) { |
---|
| 677 | // in this case we can only have LE vs. BE, so, only need to swap: |
---|
[876] | 678 | ROAR_DBG("roar_conv_endian(*): Doing 16 bit byteswap"); |
---|
[875] | 679 | return roar_conv_endian_16(out, in, samples); |
---|
| 680 | } else if ( bits == 24 ) { |
---|
| 681 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
---|
| 682 | return roar_conv_endian_24(out, in, samples); |
---|
| 683 | } else { // what the hell is PDP eddines in 24 bit mode? |
---|
| 684 | return -1; |
---|
| 685 | } |
---|
| 686 | } else if ( bits == 32 ) { |
---|
| 687 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
---|
| 688 | return roar_conv_endian_32(out, in, samples); |
---|
| 689 | } else { // need to handle 32 PDP eddines here? |
---|
| 690 | return -1; |
---|
| 691 | } |
---|
| 692 | } else { |
---|
| 693 | return -1; |
---|
| 694 | } |
---|
| 695 | } |
---|
| 696 | |
---|
| 697 | return -1; |
---|
| 698 | } |
---|
| 699 | |
---|
| 700 | |
---|
[857] | 701 | int roar_conv_endian_16 (void * out, void * in, int samples) { |
---|
| 702 | char * ip = in; |
---|
| 703 | char * op = out; |
---|
| 704 | register char c; |
---|
| 705 | int i; |
---|
| 706 | |
---|
| 707 | samples *= 2; |
---|
| 708 | |
---|
| 709 | if ( out != in ) { |
---|
[858] | 710 | // printf("out != in\n"); |
---|
[857] | 711 | for(i = 0; i < samples; i += 2) { |
---|
[858] | 712 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
---|
[857] | 713 | op[i ] = ip[i+1]; |
---|
| 714 | op[i+1] = ip[i ]; |
---|
| 715 | } |
---|
| 716 | } else { |
---|
[858] | 717 | // printf("out == in\n"); |
---|
[857] | 718 | for(i = 0; i < samples; i += 2) { |
---|
| 719 | c = ip[i+1]; |
---|
| 720 | op[i+1] = ip[i ]; |
---|
| 721 | op[i ] = c; |
---|
| 722 | } |
---|
| 723 | } |
---|
| 724 | |
---|
| 725 | return 0; |
---|
| 726 | } |
---|
| 727 | |
---|
[859] | 728 | int roar_conv_endian_24 (void * out, void * in, int samples) { |
---|
| 729 | char * ip = in; |
---|
| 730 | char * op = out; |
---|
| 731 | register char c; |
---|
| 732 | int i; |
---|
| 733 | |
---|
| 734 | samples *= 3; |
---|
| 735 | |
---|
| 736 | if ( out != in ) { |
---|
| 737 | // printf("out != in\n"); |
---|
| 738 | for(i = 0; i < samples; i += 3) { |
---|
| 739 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
---|
| 740 | op[i ] = ip[i+2]; |
---|
| 741 | op[i+2] = ip[i ]; |
---|
| 742 | } |
---|
| 743 | } else { |
---|
| 744 | // printf("out == in\n"); |
---|
| 745 | for(i = 0; i < samples; i += 3) { |
---|
| 746 | c = ip[i+2]; |
---|
| 747 | op[i+2] = ip[i ]; |
---|
| 748 | op[i ] = c; |
---|
| 749 | } |
---|
| 750 | } |
---|
| 751 | |
---|
| 752 | return 0; |
---|
| 753 | } |
---|
| 754 | |
---|
[869] | 755 | int roar_conv_endian_32 (void * out, void * in, int samples) { |
---|
| 756 | int32_t * ip = in; |
---|
| 757 | int32_t * op = out; |
---|
| 758 | union { |
---|
| 759 | int32_t val; |
---|
| 760 | char data[4]; |
---|
| 761 | } c, h; |
---|
| 762 | int i; |
---|
| 763 | |
---|
| 764 | // may the holly optimizer save our souls! |
---|
| 765 | |
---|
| 766 | ROAR_DBG("roar_conv_endian_32(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
---|
| 767 | |
---|
| 768 | for (i = 0; i < samples; i++) { |
---|
| 769 | c.val = ip[i]; |
---|
| 770 | h.data[0] = c.data[3]; |
---|
| 771 | h.data[1] = c.data[2]; |
---|
| 772 | h.data[2] = c.data[1]; |
---|
| 773 | h.data[3] = c.data[0]; |
---|
| 774 | op[i] = h.val; |
---|
| 775 | } |
---|
| 776 | |
---|
| 777 | return 0; |
---|
| 778 | } |
---|
| 779 | |
---|
[0] | 780 | int roar_conv (void * out, void * in, int samples, struct roar_audio_info * from, struct roar_audio_info * to) { |
---|
| 781 | void * ip = in; |
---|
[1060] | 782 | void * real_out = NULL; |
---|
[1059] | 783 | size_t from_size, to_size; |
---|
[0] | 784 | |
---|
| 785 | // TODO: decide how to work around both in and out beeing to small to hold all |
---|
| 786 | // data between the steps. |
---|
| 787 | // for the moment: guess out >= in |
---|
| 788 | |
---|
[1060] | 789 | from_size = (from->bits * samples) / 8; |
---|
[1064] | 790 | to_size = ( to->bits * samples * to->rate * to->channels) / (8 * from->rate * from->channels); |
---|
| 791 | |
---|
| 792 | ROAR_DBG("roar_conv(*): size: %i->%i", from_size, to_size); |
---|
[1059] | 793 | |
---|
| 794 | if ( to_size < from_size ) { |
---|
| 795 | real_out = out; |
---|
| 796 | |
---|
| 797 | if ( (out = malloc(from_size)) == NULL ) |
---|
| 798 | return -1; |
---|
[1060] | 799 | |
---|
| 800 | ROAR_DBG("roar_conv(*): malloc(%i)=%p", (int)from_size, out); |
---|
[1059] | 801 | } |
---|
| 802 | |
---|
[876] | 803 | ROAR_DBG("roar_conv(*): bo conv: %i->%i(native)", ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN); |
---|
| 804 | |
---|
[875] | 805 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[876] | 806 | ROAR_DBG("roar_conv(*): doing bo input conv"); |
---|
[1059] | 807 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 808 | if ( to_size < from_size ) |
---|
| 809 | free(out); |
---|
[875] | 810 | return -1; |
---|
[1059] | 811 | } else { |
---|
[875] | 812 | ip = out; |
---|
[1059] | 813 | } |
---|
[875] | 814 | } |
---|
| 815 | |
---|
[0] | 816 | if ( from->bits != to->bits ) { |
---|
[1059] | 817 | if ( roar_conv_bits(out, ip, samples, from->bits, to->bits) == -1 ) { |
---|
| 818 | if ( to_size < from_size ) |
---|
| 819 | free(out); |
---|
[0] | 820 | return -1; |
---|
[1059] | 821 | } else { |
---|
[0] | 822 | ip = out; |
---|
[1059] | 823 | } |
---|
[0] | 824 | } |
---|
| 825 | |
---|
[875] | 826 | if ( ROAR_CODEC_IS_SIGNED(from->codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
[1059] | 827 | if ( roar_conv_signedness(out, ip, samples, ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), to->bits) == -1 ) { |
---|
| 828 | if ( to_size < from_size ) |
---|
| 829 | free(out); |
---|
[875] | 830 | return -1; |
---|
[1059] | 831 | } else { |
---|
[875] | 832 | ip = out; |
---|
[1059] | 833 | } |
---|
[875] | 834 | } |
---|
| 835 | |
---|
| 836 | /* |
---|
[852] | 837 | if ( from->codec != to->codec ) { |
---|
[876] | 838 | if ( roar_conv_codec (out, ip, samples, from->codec, to->codec, to->bits) == -1 ) |
---|
[852] | 839 | return -1; |
---|
| 840 | else |
---|
| 841 | ip = out; |
---|
| 842 | } |
---|
[875] | 843 | */ |
---|
[852] | 844 | |
---|
[386] | 845 | if ( from->rate != to->rate ) { |
---|
[1059] | 846 | if ( roar_conv_rate(out, ip, samples, from->rate, to->rate, to->bits, from->channels) == -1 ) { |
---|
[1060] | 847 | ROAR_DBG("roar_conv(*): failed to convert rate %i->%i (%ich%ibits)", from->rate, to->rate, to->bits, from->channels); |
---|
[1064] | 848 | if ( to_size < from_size ) |
---|
| 849 | free(out); |
---|
[0] | 850 | return -1; |
---|
[1059] | 851 | } else { |
---|
[0] | 852 | ip = out; |
---|
[1064] | 853 | samples = (samples * to->rate) / from->rate; |
---|
[1059] | 854 | } |
---|
[0] | 855 | } |
---|
| 856 | |
---|
[386] | 857 | if ( from->channels != to->channels ) { |
---|
[1059] | 858 | if ( roar_conv_chans(out, ip, samples, from->channels, to->channels, to->bits) == -1 ) { |
---|
| 859 | if ( to_size < from_size ) |
---|
| 860 | free(out); |
---|
[0] | 861 | return -1; |
---|
[1059] | 862 | } else { |
---|
[0] | 863 | ip = out; |
---|
[1059] | 864 | } |
---|
[0] | 865 | } |
---|
| 866 | |
---|
[875] | 867 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[1059] | 868 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 869 | if ( to_size < from_size ) |
---|
| 870 | free(out); |
---|
[875] | 871 | return -1; |
---|
[1059] | 872 | } else { |
---|
[875] | 873 | ip = out; |
---|
[1059] | 874 | } |
---|
| 875 | } |
---|
| 876 | |
---|
| 877 | if ( to_size < from_size ) { |
---|
[1060] | 878 | ROAR_DBG("roar_conv(*): memcpy(%p, %p, %i) = ?", real_out, out, (int)to_size); |
---|
[1059] | 879 | memcpy(real_out, out, to_size); |
---|
| 880 | free(out); |
---|
[1064] | 881 | ROAR_DBG("roar_conv(*): free(%p): OK!", out); |
---|
[875] | 882 | } |
---|
| 883 | |
---|
[0] | 884 | return 0; |
---|
| 885 | } |
---|
| 886 | |
---|
[2094] | 887 | int roar_conv2(void * out, void * in, |
---|
| 888 | size_t inlen, |
---|
| 889 | struct roar_audio_info * from, struct roar_audio_info * to, |
---|
| 890 | size_t bufsize) { |
---|
| 891 | size_t samples; |
---|
| 892 | size_t needed_buffer; |
---|
[2096] | 893 | void * cin = in; |
---|
| 894 | struct roar_audio_info cinfo; |
---|
[2098] | 895 | int need_signed = 0; |
---|
[2096] | 896 | |
---|
| 897 | memcpy(&cinfo, from, sizeof(cinfo)); |
---|
[383] | 898 | |
---|
[2388] | 899 | ROAR_DBG("roar_conv2(out=%p, in=%p, inlen=%lu, from=%p{...}, to=%p{...}, bufsize=%lu", out, in, inlen, from, to, bufsize); |
---|
| 900 | |
---|
[2386] | 901 | /* |
---|
| 902 | if ( in != out ) { |
---|
| 903 | memset(out, 0xA0, bufsize); |
---|
| 904 | } else { |
---|
| 905 | ROAR_WARN("roar_conv2(*): in==out!"); |
---|
[2388] | 906 | memset(out+inlen, 0xA0, bufsize-inlen); |
---|
[2386] | 907 | } |
---|
| 908 | */ |
---|
| 909 | |
---|
[2094] | 910 | // calcumate number of input samples: |
---|
[2099] | 911 | samples = (inlen * 8) / (from->bits); |
---|
| 912 | |
---|
[2100] | 913 | ROAR_DBG("roar_conv2(*): input samples: %i", samples); |
---|
[2094] | 914 | |
---|
| 915 | // calculate size per frame |
---|
| 916 | needed_buffer = ROAR_MAX(from->channels, to->channels) * ROAR_MAX(from->bits, to->bits) / 8; |
---|
| 917 | |
---|
| 918 | needed_buffer *= samples; |
---|
[2099] | 919 | needed_buffer /= from->channels; |
---|
[2094] | 920 | |
---|
| 921 | if ( from->rate < to->rate ) |
---|
| 922 | needed_buffer *= (float)to->rate/(float)from->rate; |
---|
| 923 | |
---|
[2100] | 924 | ROAR_DBG("roar_conv2(*): needed_buffer=%u, bufsize=%u", needed_buffer, bufsize); |
---|
[2098] | 925 | |
---|
[2094] | 926 | // chjeck if we have enogth RAM to convert |
---|
| 927 | if ( needed_buffer > bufsize ) |
---|
| 928 | return -1; |
---|
| 929 | |
---|
[2098] | 930 | if ( from->rate != to->rate || from->channels != to->channels ) |
---|
| 931 | need_signed = 1; |
---|
| 932 | |
---|
[2100] | 933 | ROAR_DBG("roar_conv2(*): need_signed=%i", need_signed); |
---|
[2098] | 934 | |
---|
[2096] | 935 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[2100] | 936 | ROAR_DBG("roar_conv2(*): doing bo input conv"); |
---|
[2096] | 937 | if ( roar_conv_endian(out, cin, samples, |
---|
| 938 | ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 939 | return -1; |
---|
| 940 | } |
---|
| 941 | cin = out; |
---|
| 942 | } |
---|
| 943 | |
---|
| 944 | if ( to->bits > from->bits ) { |
---|
[2100] | 945 | ROAR_DBG("roar_conv2(*): bits: %i->%i", from->bits, to->bits); |
---|
[2096] | 946 | if ( roar_conv_bits(out, cin, samples, from->bits, to->bits) == -1 ) |
---|
| 947 | return -1; |
---|
| 948 | |
---|
| 949 | cin = out; |
---|
| 950 | cinfo.bits = to->bits; |
---|
| 951 | } |
---|
| 952 | |
---|
[2098] | 953 | if ( need_signed && ! ROAR_CODEC_IS_SIGNED(from->codec) ) { |
---|
[2100] | 954 | ROAR_DBG("roar_conv2(*): sign: unsigned->signed"); |
---|
[2098] | 955 | if ( roar_conv_signedness(out, cin, samples, |
---|
| 956 | ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), |
---|
| 957 | cinfo.bits) == -1 ) |
---|
| 958 | return -1; |
---|
| 959 | |
---|
| 960 | cin = out; |
---|
| 961 | cinfo.codec = ROAR_CODEC_PCM_S_LE; // just a signed PCM, which is of no intrest |
---|
| 962 | } |
---|
| 963 | |
---|
[2096] | 964 | if ( to->channels > from->channels ) { |
---|
[2100] | 965 | ROAR_DBG("roar_conv2(*): channels: %i->%i", from->channels, to->channels); |
---|
[2099] | 966 | if ( roar_conv_chans(out, cin, samples/from->channels, from->channels, to->channels, cinfo.bits) == -1 ) |
---|
[2096] | 967 | return -1; |
---|
| 968 | |
---|
| 969 | cin = out; |
---|
| 970 | cinfo.channels = to->channels; |
---|
| 971 | } |
---|
| 972 | |
---|
[2103] | 973 | //--// |
---|
| 974 | if ( from->rate != to->rate ) { |
---|
| 975 | if ( roar_conv_rate(out, cin, samples, from->rate, to->rate, cinfo.bits, cinfo.channels) == -1 ) |
---|
| 976 | return -1; |
---|
| 977 | |
---|
| 978 | cin = out; |
---|
| 979 | samples = (float)samples * (float)to->rate / (float)from->rate; |
---|
| 980 | cinfo.rate = to->rate; |
---|
| 981 | } |
---|
| 982 | |
---|
[2098] | 983 | if ( cinfo.channels != to->channels ) { |
---|
[2100] | 984 | ROAR_DBG("roar_conv2(*): channels: %i->%i", cinfo.channels, to->channels); |
---|
[2098] | 985 | if ( roar_conv_chans(out, cin, samples, cinfo.channels, to->channels, cinfo.bits) == -1 ) |
---|
| 986 | return -1; |
---|
| 987 | |
---|
| 988 | cin = out; |
---|
| 989 | cinfo.channels = to->channels; |
---|
| 990 | } |
---|
| 991 | |
---|
| 992 | if ( ROAR_CODEC_IS_SIGNED(cinfo.codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
[2100] | 993 | ROAR_DBG("roar_conv2(*): sign: ?(%i)->?(%i)", ROAR_CODEC_IS_SIGNED(cinfo.codec), ROAR_CODEC_IS_SIGNED(to->codec)); |
---|
[2097] | 994 | if ( roar_conv_signedness(out, cin, samples, |
---|
[2098] | 995 | ROAR_CODEC_IS_SIGNED(cinfo.codec), ROAR_CODEC_IS_SIGNED(to->codec), |
---|
[2097] | 996 | cinfo.bits) == -1 ) |
---|
| 997 | return -1; |
---|
| 998 | |
---|
| 999 | cin = out; |
---|
| 1000 | cinfo.codec = to->codec; |
---|
| 1001 | } |
---|
[2096] | 1002 | |
---|
| 1003 | if ( cinfo.bits != to->bits ) { |
---|
[2100] | 1004 | ROAR_DBG("roar_conv2(*): bits: %i->%i", cinfo.bits, to->bits); |
---|
[2096] | 1005 | if ( roar_conv_bits(out, cin, samples, cinfo.bits, to->bits) == -1 ) |
---|
| 1006 | return -1; |
---|
| 1007 | |
---|
| 1008 | cin = out; |
---|
| 1009 | cinfo.bits = to->bits; |
---|
| 1010 | } |
---|
| 1011 | |
---|
| 1012 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[2100] | 1013 | ROAR_DBG("roar_conv2(*): doing bo output conv"); |
---|
[2096] | 1014 | if ( roar_conv_endian(out, cin, samples, |
---|
| 1015 | ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 1016 | return -1; |
---|
| 1017 | } |
---|
| 1018 | cin = out; |
---|
| 1019 | } |
---|
| 1020 | |
---|
[2100] | 1021 | ROAR_DBG("roar_conv2(*) = 0"); |
---|
[2096] | 1022 | return 0; |
---|
[2094] | 1023 | } |
---|
[383] | 1024 | |
---|
| 1025 | int roar_conv_poly4_16 (int16_t * out, int16_t * in, size_t olen, size_t ilen) { |
---|
[386] | 1026 | return roar_conv_poly4_16s(out, in, olen, ilen, (float)ilen/olen); |
---|
| 1027 | } |
---|
| 1028 | |
---|
| 1029 | int roar_conv_poly4_16s (int16_t * out, int16_t * in, size_t olen, size_t ilen, float step) { |
---|
[383] | 1030 | float poly[4]; |
---|
| 1031 | float data[4]; |
---|
| 1032 | float t = 0; |
---|
| 1033 | int16_t * ci = in; |
---|
| 1034 | int io, ii = 0; |
---|
| 1035 | int i; |
---|
| 1036 | |
---|
[386] | 1037 | printf("step=%f\n", step); |
---|
| 1038 | |
---|
[383] | 1039 | // we can not make a poly4 with less than 4 points ;) |
---|
| 1040 | if ( ilen < 4 ) |
---|
| 1041 | return -1; |
---|
| 1042 | |
---|
| 1043 | for (i = 0; i < 4; i++) |
---|
| 1044 | data[i] = ci[i]; |
---|
| 1045 | roar_math_mkpoly_4x4(poly, data); |
---|
| 1046 | /* |
---|
| 1047 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
---|
| 1048 | data[0], data[1], data[2], data[3], |
---|
| 1049 | poly[0], poly[1], poly[2], poly[3] |
---|
| 1050 | ); |
---|
| 1051 | */ |
---|
| 1052 | |
---|
| 1053 | //0 1 2 3 |
---|
| 1054 | |
---|
| 1055 | for (io = 0; io < olen; io++) { |
---|
| 1056 | // printf("t=%f\n", t); |
---|
| 1057 | out[io] = roar_math_cvpoly_4x4(poly, t); |
---|
| 1058 | t += step; |
---|
| 1059 | if ( t > 2 ) { // we need a new ploynome |
---|
| 1060 | // printf("t > 2, need new data\n"); |
---|
| 1061 | if ( (ii + 4) < ilen ) { // else: end of block. |
---|
| 1062 | t -= 1; |
---|
| 1063 | // printf("new data: ii=%i\n", ii); |
---|
| 1064 | ii++; |
---|
| 1065 | ci++; |
---|
| 1066 | for (i = 0; i < 4; i++) |
---|
| 1067 | data[i] = ci[i]; |
---|
| 1068 | roar_math_mkpoly_4x4(poly, data); |
---|
| 1069 | /* |
---|
| 1070 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
---|
| 1071 | data[0], data[1], data[2], data[3], |
---|
| 1072 | poly[0], poly[1], poly[2], poly[3] |
---|
| 1073 | ); |
---|
| 1074 | */ |
---|
| 1075 | } |
---|
| 1076 | } |
---|
| 1077 | } |
---|
| 1078 | |
---|
[386] | 1079 | printf("io=%i\n", io); |
---|
| 1080 | |
---|
[383] | 1081 | return 0; |
---|
| 1082 | } |
---|
| 1083 | |
---|
[0] | 1084 | //ll |
---|