[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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| 216 | default: return -1; |
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| 217 | } |
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| 218 | break; |
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| 219 | default: |
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| 220 | switch (to) { |
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| 221 | case 1: return roar_conv_chans_nto116(out, in, samples, from); |
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| 222 | default: return -1; |
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| 223 | } |
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| 224 | } |
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| 225 | break; |
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| 226 | default: return -1; |
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[0] | 227 | } |
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| 228 | |
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| 229 | return -1; |
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| 230 | } |
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| 231 | |
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| 232 | int roar_conv_chans_1ton8 (void * out, void * in, int samples, int to) { |
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| 233 | char * ip = (char*) in, * op = (char*) out; |
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| 234 | int i; |
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| 235 | int c; |
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| 236 | |
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| 237 | for (i = samples - 1; i >= 0; i--) |
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| 238 | for (c = to - 1; c >= 0; c--) |
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| 239 | op[i*to + c] = ip[i]; |
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| 240 | |
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| 241 | return 0; |
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| 242 | } |
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| 243 | |
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[850] | 244 | int roar_conv_chans_1to28 (void * out, void * in, int samples) { |
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| 245 | char * ip = (char*) in, * op = (char*) out; |
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[852] | 246 | int i, h; |
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[850] | 247 | |
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[852] | 248 | samples--; |
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[850] | 249 | |
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[852] | 250 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 251 | op[i + 0] = ip[h]; |
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| 252 | op[i + 1] = ip[h]; |
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[850] | 253 | } |
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| 254 | |
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| 255 | return 0; |
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| 256 | } |
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| 257 | |
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[0] | 258 | int roar_conv_chans_1ton16 (void * out, void * in, int samples, int to) { |
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| 259 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 260 | int i; |
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| 261 | int c; |
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| 262 | |
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| 263 | for (i = samples - 1; i >= 0; i--) |
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| 264 | for (c = to - 1; c >= 0; c--) |
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| 265 | op[i*to + c] = ip[i]; |
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| 266 | |
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| 267 | return 0; |
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| 268 | } |
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| 269 | |
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[850] | 270 | int roar_conv_chans_1to216 (void * out, void * in, int samples) { |
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| 271 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 272 | int i, h; |
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[850] | 273 | |
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[852] | 274 | samples--; |
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[850] | 275 | |
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[852] | 276 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 277 | op[i + 0] = ip[h]; |
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| 278 | op[i + 1] = ip[h]; |
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[850] | 279 | } |
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| 280 | |
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| 281 | return 0; |
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| 282 | } |
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| 283 | |
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[626] | 284 | int roar_conv_chans_nto18 (void * out, void * in, int samples, int from) { |
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| 285 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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| 286 | int i; |
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| 287 | int c; |
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| 288 | register int s; |
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| 289 | |
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| 290 | samples /= from; |
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| 291 | |
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| 292 | for (i = samples - 1; i >= 0; i--) { |
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| 293 | s = 0; |
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| 294 | |
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| 295 | for (c = 0; c < from; c++) |
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| 296 | s += ip[i*from + c]; |
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| 297 | |
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| 298 | s /= from; |
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| 299 | op[i] = s; |
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| 300 | } |
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| 301 | |
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| 302 | return 0; |
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| 303 | } |
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| 304 | |
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[850] | 305 | int roar_conv_chans_2to18 (void * out, void * in, int samples) { |
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| 306 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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[852] | 307 | int i, h; |
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[850] | 308 | |
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| 309 | samples -= 2; |
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| 310 | |
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[852] | 311 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) |
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| 312 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[850] | 313 | |
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| 314 | return 0; |
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| 315 | } |
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| 316 | |
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[624] | 317 | int roar_conv_chans_nto116 (void * out, void * in, int samples, int from) { |
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| 318 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 319 | int i; |
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| 320 | int c; |
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| 321 | register int s; |
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| 322 | |
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| 323 | samples /= from; |
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| 324 | |
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| 325 | for (i = samples - 1; i >= 0; i--) { |
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| 326 | s = 0; |
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| 327 | |
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| 328 | for (c = 0; c < from; c++) |
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| 329 | s += ip[i*from + c]; |
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| 330 | |
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| 331 | s /= from; |
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| 332 | op[i] = s; |
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| 333 | } |
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| 334 | |
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| 335 | return 0; |
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| 336 | } |
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| 337 | |
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[850] | 338 | int roar_conv_chans_2to116 (void * out, void * in, int samples) { |
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| 339 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 340 | int i, h; |
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[850] | 341 | |
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[1064] | 342 | ROAR_DBG("roar_conv_chans_2to116(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 343 | |
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[850] | 344 | samples -= 2; |
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| 345 | |
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[1064] | 346 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) { |
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| 347 | 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] | 348 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[1064] | 349 | } |
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[850] | 350 | |
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| 351 | return 0; |
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| 352 | } |
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| 353 | |
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[0] | 354 | int roar_conv_rate (void * out, void * in, int samples, int from, int to, int bits, int channels) { |
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[2386] | 355 | #ifdef ROAR_HAVE_LIBSAMPLERATE |
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| 356 | return roar_conv_rate_SRC(out, in, samples, from, to, bits, channels); |
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| 357 | #else |
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[0] | 358 | if ( bits == 8 ) |
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| 359 | return roar_conv_rate_8(out, in, samples, from, to, channels); |
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| 360 | |
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| 361 | if ( bits == 16 ) |
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| 362 | return roar_conv_rate_16(out, in, samples, from, to, channels); |
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| 363 | |
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| 364 | return -1; |
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[2386] | 365 | #endif |
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[0] | 366 | } |
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| 367 | |
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| 368 | int roar_conv_rate_8 (void * out, void * in, int samples, int from, int to, int channels) { |
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| 369 | return -1; |
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| 370 | } |
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[33] | 371 | |
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[0] | 372 | int roar_conv_rate_16 (void * out, void * in, int samples, int from, int to, int channels) { |
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[1061] | 373 | if ( from > to ) { |
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| 374 | switch (channels) { |
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| 375 | case 1: |
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| 376 | return roar_conv_rate_161zoh(out, in, samples, from, to); |
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| 377 | case 2: |
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[1064] | 378 | return roar_conv_rate_162zoh(out, in, samples, from, to); |
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[1061] | 379 | default: |
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| 380 | return -1; |
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| 381 | } |
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| 382 | } else { |
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| 383 | if ( channels == 1 ) { |
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| 384 | printf("roar_conv_rate_16(): samples=%i -> %i, rate=%i -> %i\n", samples*from/to, samples, from, to); |
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| 385 | return roar_conv_poly4_16s((int16_t*) out, (int16_t*) in, samples, samples*from/to, (float)from/to); |
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| 386 | // return roar_conv_poly4_16((int16_t*) out, (int16_t*) in, samples*to/from, samples); |
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| 387 | } |
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[386] | 388 | } |
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| 389 | |
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[0] | 390 | return -1; |
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| 391 | } |
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| 392 | |
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[1061] | 393 | int roar_conv_rate_161zoh(void * out, void * in, int samples, int from, int to) { |
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| 394 | int16_t * ip = in; |
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| 395 | int16_t * op = out; |
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| 396 | float t = 0; |
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| 397 | float step = (float)to/from; |
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| 398 | int i; |
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| 399 | |
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| 400 | for (i= 0; i < samples; i++) { |
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| 401 | op[(int)t] = ip[i]; |
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| 402 | t += step; |
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| 403 | } |
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| 404 | |
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| 405 | return 0; |
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| 406 | } |
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| 407 | |
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[1064] | 408 | int roar_conv_rate_162zoh(void * out, void * in, int samples, int from, int to) { |
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| 409 | int16_t * ip = in; |
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| 410 | int16_t * op = out; |
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| 411 | float t = 0; |
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| 412 | float step = (float)to/from; |
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| 413 | int i; |
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| 414 | |
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| 415 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
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| 416 | samples /= 2; |
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[2386] | 417 | // samples -= 1; |
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[1064] | 418 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
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| 419 | |
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| 420 | for (i= 0; i < samples; i++) { |
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| 421 | 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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| 422 | op[2*(int)t ] = ip[2*i ]; |
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| 423 | op[2*(int)t + 1] = ip[2*i + 1]; |
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| 424 | t += step; |
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| 425 | } |
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| 426 | |
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| 427 | return 0; |
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| 428 | } |
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| 429 | |
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[2386] | 430 | int roar_conv_rate_SRC (void * out, void * in, int samples, int from, int to, int bits, int channels) { |
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| 431 | #ifdef ROAR_HAVE_LIBSAMPLERATE |
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| 432 | double radio = (double) to / (double) from; |
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| 433 | int outsamples = radio * samples; |
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| 434 | float * inf = malloc(samples*sizeof(float)); |
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| 435 | float * outf = malloc(outsamples*sizeof(float)); |
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| 436 | int i; |
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| 437 | SRC_DATA srcdata; |
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| 438 | |
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| 439 | ROAR_DBG("roar_conv_rate_SRC(*): radio=%lf, samples=%i, outsamples=%i", radio, samples, outsamples); |
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| 440 | |
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| 441 | if ( inf == NULL ) { |
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| 442 | if ( outf != NULL ) |
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| 443 | free(outf); |
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| 444 | |
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| 445 | return -1; |
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| 446 | } |
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| 447 | |
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| 448 | if ( outf == NULL ) { |
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| 449 | if ( inf != NULL ) |
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| 450 | free(inf); |
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| 451 | |
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| 452 | return -1; |
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| 453 | } |
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| 454 | |
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| 455 | switch (bits) { |
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| 456 | case 8: |
---|
| 457 | for (i = 0; i < samples; i++) |
---|
| 458 | inf[i] = *(((int8_t *)in)+i) / 128.0; |
---|
| 459 | break; |
---|
| 460 | case 16: |
---|
| 461 | for (i = 0; i < samples; i++) |
---|
| 462 | inf[i] = *(((int16_t*)in)+i) / 32768.0; |
---|
| 463 | break; |
---|
| 464 | case 32: |
---|
| 465 | for (i = 0; i < samples; i++) |
---|
| 466 | inf[i] = *(((int32_t*)in)+i) / 2147483648.0; |
---|
| 467 | break; |
---|
| 468 | default: |
---|
| 469 | free(outf); |
---|
| 470 | free(inf); |
---|
| 471 | return -1; |
---|
| 472 | } |
---|
| 473 | |
---|
| 474 | srcdata.data_in = inf; |
---|
| 475 | srcdata.data_out = outf; |
---|
| 476 | srcdata.input_frames = samples/channels; |
---|
| 477 | srcdata.output_frames = outsamples/channels; |
---|
| 478 | srcdata.src_ratio = radio; |
---|
| 479 | |
---|
[2388] | 480 | if ( src_simple(&srcdata, SRC_ZERO_ORDER_HOLD, channels) != 0 ) { |
---|
[2386] | 481 | free(outf); |
---|
| 482 | free(inf); |
---|
| 483 | return -1; |
---|
| 484 | } |
---|
| 485 | |
---|
| 486 | switch (bits) { |
---|
| 487 | case 8: |
---|
[2388] | 488 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 489 | *(((int8_t *)out)+i) = outf[i] * 128.0; |
---|
| 490 | break; |
---|
| 491 | case 16: |
---|
[2388] | 492 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 493 | *(((int16_t*)out)+i) = outf[i] * 32768.0; |
---|
| 494 | break; |
---|
| 495 | case 32: |
---|
[2388] | 496 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 497 | *(((int32_t*)out)+i) = outf[i] * 2147483648.0; |
---|
| 498 | break; |
---|
| 499 | // no errors here, they are handled above |
---|
| 500 | } |
---|
| 501 | |
---|
| 502 | free(outf); |
---|
| 503 | free(inf); |
---|
| 504 | |
---|
| 505 | return 0; |
---|
| 506 | #else |
---|
| 507 | return -1; |
---|
| 508 | #endif |
---|
| 509 | } |
---|
| 510 | |
---|
[875] | 511 | int roar_conv_signedness (void * out, void * in, int samples, int from, int to, int bits) { |
---|
| 512 | |
---|
| 513 | if ( from != to ) { |
---|
| 514 | if ( from && !to ) { |
---|
| 515 | switch (bits) { |
---|
| 516 | case 8: roar_conv_codec_s2u8( out, in, samples); break; |
---|
| 517 | case 16: roar_conv_codec_s2u16(out, in, samples); break; |
---|
| 518 | case 32: roar_conv_codec_s2u32(out, in, samples); break; |
---|
| 519 | default: |
---|
| 520 | errno = ENOSYS; |
---|
| 521 | return -1; |
---|
| 522 | } |
---|
| 523 | } else if ( !from && to ) { |
---|
| 524 | switch (bits) { |
---|
| 525 | case 8: roar_conv_codec_u2s8( out, in, samples); break; |
---|
| 526 | case 16: roar_conv_codec_u2s16(out, in, samples); break; |
---|
| 527 | case 32: roar_conv_codec_u2s32(out, in, samples); break; |
---|
| 528 | default: |
---|
| 529 | errno = ENOSYS; |
---|
| 530 | return -1; |
---|
| 531 | } |
---|
| 532 | } else { |
---|
[876] | 533 | return -1; |
---|
| 534 | } |
---|
| 535 | } else { |
---|
| 536 | if ( out == in ) |
---|
| 537 | return 0; |
---|
[875] | 538 | |
---|
[876] | 539 | memcpy(out, in, samples * bits / 8); |
---|
| 540 | return 0; |
---|
[875] | 541 | } |
---|
| 542 | |
---|
[876] | 543 | return 0; |
---|
[875] | 544 | } |
---|
| 545 | |
---|
[876] | 546 | int roar_conv_codec (void * out, void * in, int samples, int from, int to, int bits) { |
---|
[0] | 547 | int inbo = ROAR_CODEC_BYTE_ORDER(from), outbo = ROAR_CODEC_BYTE_ORDER(to); |
---|
| 548 | int ins = ROAR_CODEC_IS_SIGNED(from), outs = ROAR_CODEC_IS_SIGNED(to); |
---|
[858] | 549 | void * nin = in; |
---|
[0] | 550 | |
---|
[858] | 551 | |
---|
[876] | 552 | ROAR_DBG("roar_conv_codec(out=%p, in=%p, samples=%i, from=%i(%s), to=%i(%s), bits=%i) = ?", |
---|
[869] | 553 | out, in, samples, from, roar_codec2str(from), to, roar_codec2str(to), bits); |
---|
| 554 | |
---|
[875] | 555 | roar_conv_endian(out, in, samples, inbo, outbo, bits); |
---|
| 556 | nin = out; |
---|
[0] | 557 | |
---|
[875] | 558 | return roar_conv_signedness(out, in, samples, ins, outs, bits); |
---|
[0] | 559 | } |
---|
| 560 | |
---|
| 561 | int roar_conv_codec_s2u8 (void * out, void * in, int samples) { |
---|
| 562 | char * ip = in; |
---|
| 563 | unsigned char * op = out; |
---|
| 564 | int i; |
---|
| 565 | |
---|
| 566 | for(i = 0; i < samples; i++) |
---|
| 567 | op[i] = ip[i] + 128; |
---|
| 568 | |
---|
| 569 | return 0; |
---|
| 570 | } |
---|
| 571 | |
---|
[633] | 572 | int roar_conv_codec_s2u16 (void * out, void * in, int samples) { |
---|
| 573 | int16_t * ip = in; |
---|
| 574 | uint16_t * op = out; |
---|
| 575 | int i; |
---|
| 576 | |
---|
| 577 | for(i = 0; i < samples; i++) |
---|
| 578 | op[i] = ip[i] + 32768; |
---|
| 579 | |
---|
| 580 | return 0; |
---|
| 581 | } |
---|
[0] | 582 | |
---|
[846] | 583 | int roar_conv_codec_s2u32 (void * out, void * in, int samples) { |
---|
| 584 | int32_t * ip = in; |
---|
| 585 | uint32_t * op = out; |
---|
| 586 | int i; |
---|
| 587 | |
---|
| 588 | for(i = 0; i < samples; i++) |
---|
| 589 | op[i] = ip[i] + 2147483648U; |
---|
| 590 | |
---|
| 591 | return 0; |
---|
| 592 | } |
---|
| 593 | |
---|
| 594 | int roar_conv_codec_u2s8 (void * out, void * in, int samples) { |
---|
| 595 | unsigned char * ip = in; |
---|
| 596 | char * op = out; |
---|
| 597 | int i; |
---|
| 598 | |
---|
| 599 | for(i = 0; i < samples; i++) |
---|
| 600 | op[i] = ip[i] - 128; |
---|
| 601 | |
---|
| 602 | return 0; |
---|
| 603 | } |
---|
| 604 | |
---|
| 605 | int roar_conv_codec_u2s16 (void * out, void * in, int samples) { |
---|
| 606 | uint16_t * ip = in; |
---|
| 607 | int16_t * op = out; |
---|
| 608 | int i; |
---|
| 609 | |
---|
| 610 | for(i = 0; i < samples; i++) |
---|
| 611 | op[i] = ip[i] - 32768; |
---|
| 612 | |
---|
| 613 | return 0; |
---|
| 614 | } |
---|
| 615 | |
---|
| 616 | int roar_conv_codec_u2s32 (void * out, void * in, int samples) { |
---|
| 617 | uint32_t * ip = in; |
---|
| 618 | int32_t * op = out; |
---|
| 619 | int i; |
---|
| 620 | |
---|
| 621 | for(i = 0; i < samples; i++) |
---|
| 622 | op[i] = ip[i] - 2147483648U; |
---|
| 623 | |
---|
| 624 | return 0; |
---|
| 625 | } |
---|
| 626 | |
---|
[875] | 627 | |
---|
| 628 | int roar_conv_endian (void * out, void * in, int samples, int from, int to, int bits) { |
---|
| 629 | |
---|
| 630 | if ( bits == 8 ) { |
---|
| 631 | from = to = ROAR_CODEC_NATIVE_ENDIAN; |
---|
| 632 | |
---|
| 633 | } else if ( bits == 16 ) { |
---|
| 634 | if ( from == ROAR_CODEC_PDP ) |
---|
| 635 | from = ROAR_CODEC_LE; |
---|
| 636 | if ( to == ROAR_CODEC_PDP ) |
---|
| 637 | to = ROAR_CODEC_LE; |
---|
| 638 | } |
---|
| 639 | |
---|
[876] | 640 | ROAR_DBG("roar_conv_endian(out=%p, in=%p, samples=%i, from=%i, to=%i, bits=%i) = ?", out, in, samples, from, to, bits); |
---|
| 641 | |
---|
[875] | 642 | if ( from == to ) { |
---|
| 643 | if ( in != out ) { |
---|
| 644 | memcpy(out, in, samples * bits / 8); |
---|
| 645 | } |
---|
[876] | 646 | return 0; |
---|
| 647 | } else { |
---|
[875] | 648 | if ( bits == 16 ) { |
---|
| 649 | // in this case we can only have LE vs. BE, so, only need to swap: |
---|
[876] | 650 | ROAR_DBG("roar_conv_endian(*): Doing 16 bit byteswap"); |
---|
[875] | 651 | return roar_conv_endian_16(out, in, samples); |
---|
| 652 | } else if ( bits == 24 ) { |
---|
| 653 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
---|
| 654 | return roar_conv_endian_24(out, in, samples); |
---|
| 655 | } else { // what the hell is PDP eddines in 24 bit mode? |
---|
| 656 | return -1; |
---|
| 657 | } |
---|
| 658 | } else if ( bits == 32 ) { |
---|
| 659 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
---|
| 660 | return roar_conv_endian_32(out, in, samples); |
---|
| 661 | } else { // need to handle 32 PDP eddines here? |
---|
| 662 | return -1; |
---|
| 663 | } |
---|
| 664 | } else { |
---|
| 665 | return -1; |
---|
| 666 | } |
---|
| 667 | } |
---|
| 668 | |
---|
| 669 | return -1; |
---|
| 670 | } |
---|
| 671 | |
---|
| 672 | |
---|
[857] | 673 | int roar_conv_endian_16 (void * out, void * in, int samples) { |
---|
| 674 | char * ip = in; |
---|
| 675 | char * op = out; |
---|
| 676 | register char c; |
---|
| 677 | int i; |
---|
| 678 | |
---|
| 679 | samples *= 2; |
---|
| 680 | |
---|
| 681 | if ( out != in ) { |
---|
[858] | 682 | // printf("out != in\n"); |
---|
[857] | 683 | for(i = 0; i < samples; i += 2) { |
---|
[858] | 684 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
---|
[857] | 685 | op[i ] = ip[i+1]; |
---|
| 686 | op[i+1] = ip[i ]; |
---|
| 687 | } |
---|
| 688 | } else { |
---|
[858] | 689 | // printf("out == in\n"); |
---|
[857] | 690 | for(i = 0; i < samples; i += 2) { |
---|
| 691 | c = ip[i+1]; |
---|
| 692 | op[i+1] = ip[i ]; |
---|
| 693 | op[i ] = c; |
---|
| 694 | } |
---|
| 695 | } |
---|
| 696 | |
---|
| 697 | return 0; |
---|
| 698 | } |
---|
| 699 | |
---|
[859] | 700 | int roar_conv_endian_24 (void * out, void * in, int samples) { |
---|
| 701 | char * ip = in; |
---|
| 702 | char * op = out; |
---|
| 703 | register char c; |
---|
| 704 | int i; |
---|
| 705 | |
---|
| 706 | samples *= 3; |
---|
| 707 | |
---|
| 708 | if ( out != in ) { |
---|
| 709 | // printf("out != in\n"); |
---|
| 710 | for(i = 0; i < samples; i += 3) { |
---|
| 711 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
---|
| 712 | op[i ] = ip[i+2]; |
---|
| 713 | op[i+2] = ip[i ]; |
---|
| 714 | } |
---|
| 715 | } else { |
---|
| 716 | // printf("out == in\n"); |
---|
| 717 | for(i = 0; i < samples; i += 3) { |
---|
| 718 | c = ip[i+2]; |
---|
| 719 | op[i+2] = ip[i ]; |
---|
| 720 | op[i ] = c; |
---|
| 721 | } |
---|
| 722 | } |
---|
| 723 | |
---|
| 724 | return 0; |
---|
| 725 | } |
---|
| 726 | |
---|
[869] | 727 | int roar_conv_endian_32 (void * out, void * in, int samples) { |
---|
| 728 | int32_t * ip = in; |
---|
| 729 | int32_t * op = out; |
---|
| 730 | union { |
---|
| 731 | int32_t val; |
---|
| 732 | char data[4]; |
---|
| 733 | } c, h; |
---|
| 734 | int i; |
---|
| 735 | |
---|
| 736 | // may the holly optimizer save our souls! |
---|
| 737 | |
---|
| 738 | ROAR_DBG("roar_conv_endian_32(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
---|
| 739 | |
---|
| 740 | for (i = 0; i < samples; i++) { |
---|
| 741 | c.val = ip[i]; |
---|
| 742 | h.data[0] = c.data[3]; |
---|
| 743 | h.data[1] = c.data[2]; |
---|
| 744 | h.data[2] = c.data[1]; |
---|
| 745 | h.data[3] = c.data[0]; |
---|
| 746 | op[i] = h.val; |
---|
| 747 | } |
---|
| 748 | |
---|
| 749 | return 0; |
---|
| 750 | } |
---|
| 751 | |
---|
[0] | 752 | int roar_conv (void * out, void * in, int samples, struct roar_audio_info * from, struct roar_audio_info * to) { |
---|
| 753 | void * ip = in; |
---|
[1060] | 754 | void * real_out = NULL; |
---|
[1059] | 755 | size_t from_size, to_size; |
---|
[0] | 756 | |
---|
| 757 | // TODO: decide how to work around both in and out beeing to small to hold all |
---|
| 758 | // data between the steps. |
---|
| 759 | // for the moment: guess out >= in |
---|
| 760 | |
---|
[1060] | 761 | from_size = (from->bits * samples) / 8; |
---|
[1064] | 762 | to_size = ( to->bits * samples * to->rate * to->channels) / (8 * from->rate * from->channels); |
---|
| 763 | |
---|
| 764 | ROAR_DBG("roar_conv(*): size: %i->%i", from_size, to_size); |
---|
[1059] | 765 | |
---|
| 766 | if ( to_size < from_size ) { |
---|
| 767 | real_out = out; |
---|
| 768 | |
---|
| 769 | if ( (out = malloc(from_size)) == NULL ) |
---|
| 770 | return -1; |
---|
[1060] | 771 | |
---|
| 772 | ROAR_DBG("roar_conv(*): malloc(%i)=%p", (int)from_size, out); |
---|
[1059] | 773 | } |
---|
| 774 | |
---|
[876] | 775 | ROAR_DBG("roar_conv(*): bo conv: %i->%i(native)", ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN); |
---|
| 776 | |
---|
[875] | 777 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[876] | 778 | ROAR_DBG("roar_conv(*): doing bo input conv"); |
---|
[1059] | 779 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 780 | if ( to_size < from_size ) |
---|
| 781 | free(out); |
---|
[875] | 782 | return -1; |
---|
[1059] | 783 | } else { |
---|
[875] | 784 | ip = out; |
---|
[1059] | 785 | } |
---|
[875] | 786 | } |
---|
| 787 | |
---|
[0] | 788 | if ( from->bits != to->bits ) { |
---|
[1059] | 789 | if ( roar_conv_bits(out, ip, samples, from->bits, to->bits) == -1 ) { |
---|
| 790 | if ( to_size < from_size ) |
---|
| 791 | free(out); |
---|
[0] | 792 | return -1; |
---|
[1059] | 793 | } else { |
---|
[0] | 794 | ip = out; |
---|
[1059] | 795 | } |
---|
[0] | 796 | } |
---|
| 797 | |
---|
[875] | 798 | if ( ROAR_CODEC_IS_SIGNED(from->codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
[1059] | 799 | if ( roar_conv_signedness(out, ip, samples, ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), to->bits) == -1 ) { |
---|
| 800 | if ( to_size < from_size ) |
---|
| 801 | free(out); |
---|
[875] | 802 | return -1; |
---|
[1059] | 803 | } else { |
---|
[875] | 804 | ip = out; |
---|
[1059] | 805 | } |
---|
[875] | 806 | } |
---|
| 807 | |
---|
| 808 | /* |
---|
[852] | 809 | if ( from->codec != to->codec ) { |
---|
[876] | 810 | if ( roar_conv_codec (out, ip, samples, from->codec, to->codec, to->bits) == -1 ) |
---|
[852] | 811 | return -1; |
---|
| 812 | else |
---|
| 813 | ip = out; |
---|
| 814 | } |
---|
[875] | 815 | */ |
---|
[852] | 816 | |
---|
[386] | 817 | if ( from->rate != to->rate ) { |
---|
[1059] | 818 | if ( roar_conv_rate(out, ip, samples, from->rate, to->rate, to->bits, from->channels) == -1 ) { |
---|
[1060] | 819 | ROAR_DBG("roar_conv(*): failed to convert rate %i->%i (%ich%ibits)", from->rate, to->rate, to->bits, from->channels); |
---|
[1064] | 820 | if ( to_size < from_size ) |
---|
| 821 | free(out); |
---|
[0] | 822 | return -1; |
---|
[1059] | 823 | } else { |
---|
[0] | 824 | ip = out; |
---|
[1064] | 825 | samples = (samples * to->rate) / from->rate; |
---|
[1059] | 826 | } |
---|
[0] | 827 | } |
---|
| 828 | |
---|
[386] | 829 | if ( from->channels != to->channels ) { |
---|
[1059] | 830 | if ( roar_conv_chans(out, ip, samples, from->channels, to->channels, to->bits) == -1 ) { |
---|
| 831 | if ( to_size < from_size ) |
---|
| 832 | free(out); |
---|
[0] | 833 | return -1; |
---|
[1059] | 834 | } else { |
---|
[0] | 835 | ip = out; |
---|
[1059] | 836 | } |
---|
[0] | 837 | } |
---|
| 838 | |
---|
[875] | 839 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[1059] | 840 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 841 | if ( to_size < from_size ) |
---|
| 842 | free(out); |
---|
[875] | 843 | return -1; |
---|
[1059] | 844 | } else { |
---|
[875] | 845 | ip = out; |
---|
[1059] | 846 | } |
---|
| 847 | } |
---|
| 848 | |
---|
| 849 | if ( to_size < from_size ) { |
---|
[1060] | 850 | ROAR_DBG("roar_conv(*): memcpy(%p, %p, %i) = ?", real_out, out, (int)to_size); |
---|
[1059] | 851 | memcpy(real_out, out, to_size); |
---|
| 852 | free(out); |
---|
[1064] | 853 | ROAR_DBG("roar_conv(*): free(%p): OK!", out); |
---|
[875] | 854 | } |
---|
| 855 | |
---|
[0] | 856 | return 0; |
---|
| 857 | } |
---|
| 858 | |
---|
[2094] | 859 | int roar_conv2(void * out, void * in, |
---|
| 860 | size_t inlen, |
---|
| 861 | struct roar_audio_info * from, struct roar_audio_info * to, |
---|
| 862 | size_t bufsize) { |
---|
| 863 | size_t samples; |
---|
| 864 | size_t needed_buffer; |
---|
[2096] | 865 | void * cin = in; |
---|
| 866 | struct roar_audio_info cinfo; |
---|
[2098] | 867 | int need_signed = 0; |
---|
[2096] | 868 | |
---|
| 869 | memcpy(&cinfo, from, sizeof(cinfo)); |
---|
[383] | 870 | |
---|
[2388] | 871 | ROAR_DBG("roar_conv2(out=%p, in=%p, inlen=%lu, from=%p{...}, to=%p{...}, bufsize=%lu", out, in, inlen, from, to, bufsize); |
---|
| 872 | |
---|
[2386] | 873 | /* |
---|
| 874 | if ( in != out ) { |
---|
| 875 | memset(out, 0xA0, bufsize); |
---|
| 876 | } else { |
---|
| 877 | ROAR_WARN("roar_conv2(*): in==out!"); |
---|
[2388] | 878 | memset(out+inlen, 0xA0, bufsize-inlen); |
---|
[2386] | 879 | } |
---|
| 880 | */ |
---|
| 881 | |
---|
[2094] | 882 | // calcumate number of input samples: |
---|
[2099] | 883 | samples = (inlen * 8) / (from->bits); |
---|
| 884 | |
---|
[2100] | 885 | ROAR_DBG("roar_conv2(*): input samples: %i", samples); |
---|
[2094] | 886 | |
---|
| 887 | // calculate size per frame |
---|
| 888 | needed_buffer = ROAR_MAX(from->channels, to->channels) * ROAR_MAX(from->bits, to->bits) / 8; |
---|
| 889 | |
---|
| 890 | needed_buffer *= samples; |
---|
[2099] | 891 | needed_buffer /= from->channels; |
---|
[2094] | 892 | |
---|
| 893 | if ( from->rate < to->rate ) |
---|
| 894 | needed_buffer *= (float)to->rate/(float)from->rate; |
---|
| 895 | |
---|
[2100] | 896 | ROAR_DBG("roar_conv2(*): needed_buffer=%u, bufsize=%u", needed_buffer, bufsize); |
---|
[2098] | 897 | |
---|
[2094] | 898 | // chjeck if we have enogth RAM to convert |
---|
| 899 | if ( needed_buffer > bufsize ) |
---|
| 900 | return -1; |
---|
| 901 | |
---|
[2098] | 902 | if ( from->rate != to->rate || from->channels != to->channels ) |
---|
| 903 | need_signed = 1; |
---|
| 904 | |
---|
[2100] | 905 | ROAR_DBG("roar_conv2(*): need_signed=%i", need_signed); |
---|
[2098] | 906 | |
---|
[2096] | 907 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[2100] | 908 | ROAR_DBG("roar_conv2(*): doing bo input conv"); |
---|
[2096] | 909 | if ( roar_conv_endian(out, cin, samples, |
---|
| 910 | ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 911 | return -1; |
---|
| 912 | } |
---|
| 913 | cin = out; |
---|
| 914 | } |
---|
| 915 | |
---|
| 916 | if ( to->bits > from->bits ) { |
---|
[2100] | 917 | ROAR_DBG("roar_conv2(*): bits: %i->%i", from->bits, to->bits); |
---|
[2096] | 918 | if ( roar_conv_bits(out, cin, samples, from->bits, to->bits) == -1 ) |
---|
| 919 | return -1; |
---|
| 920 | |
---|
| 921 | cin = out; |
---|
| 922 | cinfo.bits = to->bits; |
---|
| 923 | } |
---|
| 924 | |
---|
[2098] | 925 | if ( need_signed && ! ROAR_CODEC_IS_SIGNED(from->codec) ) { |
---|
[2100] | 926 | ROAR_DBG("roar_conv2(*): sign: unsigned->signed"); |
---|
[2098] | 927 | if ( roar_conv_signedness(out, cin, samples, |
---|
| 928 | ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), |
---|
| 929 | cinfo.bits) == -1 ) |
---|
| 930 | return -1; |
---|
| 931 | |
---|
| 932 | cin = out; |
---|
| 933 | cinfo.codec = ROAR_CODEC_PCM_S_LE; // just a signed PCM, which is of no intrest |
---|
| 934 | } |
---|
| 935 | |
---|
[2096] | 936 | if ( to->channels > from->channels ) { |
---|
[2100] | 937 | ROAR_DBG("roar_conv2(*): channels: %i->%i", from->channels, to->channels); |
---|
[2099] | 938 | if ( roar_conv_chans(out, cin, samples/from->channels, from->channels, to->channels, cinfo.bits) == -1 ) |
---|
[2096] | 939 | return -1; |
---|
| 940 | |
---|
| 941 | cin = out; |
---|
| 942 | cinfo.channels = to->channels; |
---|
| 943 | } |
---|
| 944 | |
---|
[2103] | 945 | //--// |
---|
| 946 | if ( from->rate != to->rate ) { |
---|
| 947 | if ( roar_conv_rate(out, cin, samples, from->rate, to->rate, cinfo.bits, cinfo.channels) == -1 ) |
---|
| 948 | return -1; |
---|
| 949 | |
---|
| 950 | cin = out; |
---|
| 951 | samples = (float)samples * (float)to->rate / (float)from->rate; |
---|
| 952 | cinfo.rate = to->rate; |
---|
| 953 | } |
---|
| 954 | |
---|
[2098] | 955 | if ( cinfo.channels != to->channels ) { |
---|
[2100] | 956 | ROAR_DBG("roar_conv2(*): channels: %i->%i", cinfo.channels, to->channels); |
---|
[2098] | 957 | if ( roar_conv_chans(out, cin, samples, cinfo.channels, to->channels, cinfo.bits) == -1 ) |
---|
| 958 | return -1; |
---|
| 959 | |
---|
| 960 | cin = out; |
---|
| 961 | cinfo.channels = to->channels; |
---|
| 962 | } |
---|
| 963 | |
---|
| 964 | if ( ROAR_CODEC_IS_SIGNED(cinfo.codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
[2100] | 965 | ROAR_DBG("roar_conv2(*): sign: ?(%i)->?(%i)", ROAR_CODEC_IS_SIGNED(cinfo.codec), ROAR_CODEC_IS_SIGNED(to->codec)); |
---|
[2097] | 966 | if ( roar_conv_signedness(out, cin, samples, |
---|
[2098] | 967 | ROAR_CODEC_IS_SIGNED(cinfo.codec), ROAR_CODEC_IS_SIGNED(to->codec), |
---|
[2097] | 968 | cinfo.bits) == -1 ) |
---|
| 969 | return -1; |
---|
| 970 | |
---|
| 971 | cin = out; |
---|
| 972 | cinfo.codec = to->codec; |
---|
| 973 | } |
---|
[2096] | 974 | |
---|
| 975 | if ( cinfo.bits != to->bits ) { |
---|
[2100] | 976 | ROAR_DBG("roar_conv2(*): bits: %i->%i", cinfo.bits, to->bits); |
---|
[2096] | 977 | if ( roar_conv_bits(out, cin, samples, cinfo.bits, to->bits) == -1 ) |
---|
| 978 | return -1; |
---|
| 979 | |
---|
| 980 | cin = out; |
---|
| 981 | cinfo.bits = to->bits; |
---|
| 982 | } |
---|
| 983 | |
---|
| 984 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[2100] | 985 | ROAR_DBG("roar_conv2(*): doing bo output conv"); |
---|
[2096] | 986 | if ( roar_conv_endian(out, cin, samples, |
---|
| 987 | ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 988 | return -1; |
---|
| 989 | } |
---|
| 990 | cin = out; |
---|
| 991 | } |
---|
| 992 | |
---|
[2100] | 993 | ROAR_DBG("roar_conv2(*) = 0"); |
---|
[2096] | 994 | return 0; |
---|
[2094] | 995 | } |
---|
[383] | 996 | |
---|
| 997 | int roar_conv_poly4_16 (int16_t * out, int16_t * in, size_t olen, size_t ilen) { |
---|
[386] | 998 | return roar_conv_poly4_16s(out, in, olen, ilen, (float)ilen/olen); |
---|
| 999 | } |
---|
| 1000 | |
---|
| 1001 | int roar_conv_poly4_16s (int16_t * out, int16_t * in, size_t olen, size_t ilen, float step) { |
---|
[383] | 1002 | float poly[4]; |
---|
| 1003 | float data[4]; |
---|
| 1004 | float t = 0; |
---|
| 1005 | int16_t * ci = in; |
---|
| 1006 | int io, ii = 0; |
---|
| 1007 | int i; |
---|
| 1008 | |
---|
[386] | 1009 | printf("step=%f\n", step); |
---|
| 1010 | |
---|
[383] | 1011 | // we can not make a poly4 with less than 4 points ;) |
---|
| 1012 | if ( ilen < 4 ) |
---|
| 1013 | return -1; |
---|
| 1014 | |
---|
| 1015 | for (i = 0; i < 4; i++) |
---|
| 1016 | data[i] = ci[i]; |
---|
| 1017 | roar_math_mkpoly_4x4(poly, data); |
---|
| 1018 | /* |
---|
| 1019 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
---|
| 1020 | data[0], data[1], data[2], data[3], |
---|
| 1021 | poly[0], poly[1], poly[2], poly[3] |
---|
| 1022 | ); |
---|
| 1023 | */ |
---|
| 1024 | |
---|
| 1025 | //0 1 2 3 |
---|
| 1026 | |
---|
| 1027 | for (io = 0; io < olen; io++) { |
---|
| 1028 | // printf("t=%f\n", t); |
---|
| 1029 | out[io] = roar_math_cvpoly_4x4(poly, t); |
---|
| 1030 | t += step; |
---|
| 1031 | if ( t > 2 ) { // we need a new ploynome |
---|
| 1032 | // printf("t > 2, need new data\n"); |
---|
| 1033 | if ( (ii + 4) < ilen ) { // else: end of block. |
---|
| 1034 | t -= 1; |
---|
| 1035 | // printf("new data: ii=%i\n", ii); |
---|
| 1036 | ii++; |
---|
| 1037 | ci++; |
---|
| 1038 | for (i = 0; i < 4; i++) |
---|
| 1039 | data[i] = ci[i]; |
---|
| 1040 | roar_math_mkpoly_4x4(poly, data); |
---|
| 1041 | /* |
---|
| 1042 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
---|
| 1043 | data[0], data[1], data[2], data[3], |
---|
| 1044 | poly[0], poly[1], poly[2], poly[3] |
---|
| 1045 | ); |
---|
| 1046 | */ |
---|
| 1047 | } |
---|
| 1048 | } |
---|
| 1049 | } |
---|
| 1050 | |
---|
[386] | 1051 | printf("io=%i\n", io); |
---|
| 1052 | |
---|
[383] | 1053 | return 0; |
---|
| 1054 | } |
---|
| 1055 | |
---|
[0] | 1056 | //ll |
---|