[0] | 1 | //convert.c: |
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| 2 | |
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[690] | 3 | /* |
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[3811] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2010 |
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[690] | 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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[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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[690] | 23 | * |
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| 24 | * NOTE for everyone want's to change something and send patches: |
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| 25 | * read README and HACKING! There a addition information on |
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| 26 | * the license of this document you need to read before you send |
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| 27 | * any patches. |
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| 28 | * |
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| 29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 30 | * or libpulse*: |
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| 31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 32 | * and are therefore GPL. Because of this it may be illigal to use |
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| 33 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 34 | */ |
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| 35 | |
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[1367] | 36 | #include "libroardsp.h" |
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[1064] | 37 | //#define free(p) {ROAR_WARN("free(%p) = ?", (p)); free((p)); ROAR_WARN("free(%p): OK", (p));} |
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[0] | 38 | |
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| 39 | int roar_conv_bits (void * out, void * in, int samples, int from, int to) { |
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[845] | 40 | int format; |
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| 41 | |
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[0] | 42 | if ( from == to ) { |
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| 43 | if ( in == out ) |
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| 44 | return 0; |
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| 45 | |
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| 46 | memcpy(out, in, samples * from / 8); |
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| 47 | return 0; |
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| 48 | } |
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| 49 | |
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[845] | 50 | format = ((from / 8) << 4) + (to / 8); |
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[0] | 51 | |
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[845] | 52 | switch (format) { |
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[849] | 53 | case 0x12: return roar_conv_bits_8to16( out, in, samples); |
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| 54 | case 0x14: return roar_conv_bits_8to32( out, in, samples); |
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| 55 | case 0x21: return roar_conv_bits_16to8( out, in, samples); |
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[845] | 56 | case 0x24: return roar_conv_bits_16to32(out, in, samples); |
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[2501] | 57 | case 0x34: return roar_conv_bits_24to32(out, in, samples); |
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[849] | 58 | case 0x41: return roar_conv_bits_32to8( out, in, samples); |
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[845] | 59 | case 0x42: return roar_conv_bits_32to16(out, in, samples); |
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| 60 | default: |
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| 61 | errno = ENOSYS; |
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| 62 | return -1; |
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| 63 | } |
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[0] | 64 | |
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| 65 | return -1; |
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| 66 | } |
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| 67 | |
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| 68 | int roar_conv_bits_8to16 (void * out, void * in, int samples) { |
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| 69 | char * ip = (char *)in; |
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| 70 | int16_t * op = (int16_t*)out; |
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| 71 | int i; |
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| 72 | |
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| 73 | for (i = samples - 1; i >= 0; i--) |
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| 74 | op[i] = ip[i] << 8; |
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| 75 | |
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| 76 | return 0; |
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| 77 | } |
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| 78 | |
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[845] | 79 | int roar_conv_bits_8to32 (void * out, void * in, int samples) { |
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| 80 | char * ip = (char *)in; |
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| 81 | int32_t * op = (int32_t*)out; |
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| 82 | int i; |
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| 83 | |
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| 84 | for (i = samples - 1; i >= 0; i--) |
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[1458] | 85 | op[i] = (int32_t) ip[i] << 24; |
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[845] | 86 | |
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| 87 | return 0; |
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| 88 | } |
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| 89 | |
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[0] | 90 | int roar_conv_bits_16to8 (void * out, void * in, int samples) { |
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| 91 | int16_t * ip = (int16_t*)in; |
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| 92 | char * op = (char *)out; |
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| 93 | int i; |
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| 94 | |
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[624] | 95 | ROAR_DBG("roar_conv_bits_16to8(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 96 | |
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[0] | 97 | for (i = 0; i < samples; i++) |
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| 98 | op[i] = ip[i] >> 8; |
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| 99 | |
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| 100 | return 0; |
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| 101 | } |
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| 102 | |
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[845] | 103 | int roar_conv_bits_16to32 (void * out, void * in, int samples) { |
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| 104 | int16_t * ip = (int16_t*)in; |
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| 105 | int32_t * op = (int32_t*)out; |
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| 106 | int i; |
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| 107 | |
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| 108 | for (i = samples - 1; i >= 0; i--) |
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[1458] | 109 | op[i] = (int32_t) ip[i] << 16; |
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[845] | 110 | |
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| 111 | return 0; |
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| 112 | } |
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| 113 | |
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[2501] | 114 | int roar_conv_bits_24to32 (void * out, void * in, int samples) { |
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| 115 | uint8_t * ip = (uint8_t*)in; |
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| 116 | int32_t * op = (int32_t*)out; |
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| 117 | int i; |
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| 118 | union { |
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| 119 | int32_t i; |
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| 120 | uint8_t c[4]; |
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| 121 | } t; |
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| 122 | |
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| 123 | ROAR_DBG("roar_conv_bits_24to32(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 124 | |
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| 125 | #if (BYTE_ORDER == BIG_ENDIAN) || (BYTE_ORDER == LITTLE_ENDIAN) |
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| 126 | t.i = 0; |
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| 127 | #else |
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| 128 | ROAR_DBG("roar_conv_bits_24to32(out=%p, in=%p, samples=%i) = -1", out, in, samples); |
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| 129 | return -1; |
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| 130 | #endif |
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| 131 | |
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| 132 | samples--; |
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| 133 | ip += 3 * samples; |
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| 134 | |
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| 135 | for (i = samples; i >= 0; i--) { |
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| 136 | #if BYTE_ORDER == BIG_ENDIAN |
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| 137 | t.c[0] = *(ip--); |
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| 138 | t.c[1] = *(ip--); |
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| 139 | t.c[2] = *(ip--); |
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| 140 | #elif BYTE_ORDER == LITTLE_ENDIAN |
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| 141 | t.c[2] = *(ip--); |
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| 142 | t.c[3] = *(ip--); |
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| 143 | t.c[1] = *(ip--); |
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| 144 | #endif |
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| 145 | ROAR_DBG("roar_conv_bits_24to32(*): i=%i, t.i=0x%.8X", i, t.i); |
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| 146 | op[i] = t.i; |
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| 147 | } |
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| 148 | |
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| 149 | ROAR_DBG("roar_conv_bits_24to32(out=%p, in=%p, samples=%i) = 0", out, in, samples); |
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| 150 | return 0; |
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| 151 | } |
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| 152 | |
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[845] | 153 | int roar_conv_bits_32to8 (void * out, void * in, int samples) { |
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| 154 | int32_t * ip = (int32_t*)in; |
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| 155 | char * op = (char *)out; |
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| 156 | int i; |
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| 157 | |
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| 158 | for (i = 0; i < samples; i++) |
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| 159 | op[i] = ip[i] >> 24; |
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| 160 | |
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| 161 | return 0; |
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| 162 | } |
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| 163 | |
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| 164 | int roar_conv_bits_32to16 (void * out, void * in, int samples) { |
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| 165 | int32_t * ip = (int32_t*)in; |
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| 166 | int16_t * op = (int16_t*)out; |
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| 167 | int i; |
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| 168 | |
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| 169 | for (i = 0; i < samples; i++) |
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| 170 | op[i] = ip[i] >> 16; |
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| 171 | |
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| 172 | return 0; |
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| 173 | } |
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[0] | 174 | |
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| 175 | int roar_conv_chans (void * out, void * in, int samples, int from, int to, int bits) { |
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[850] | 176 | if ( from == to ) { |
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| 177 | if ( in == out ) |
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| 178 | return 0; |
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| 179 | |
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| 180 | memcpy(out, in, samples * from * bits / 8); |
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| 181 | return 0; |
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| 182 | } |
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| 183 | |
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| 184 | switch (bits) { |
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| 185 | case 8: |
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| 186 | switch (from) { |
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| 187 | case 1: |
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| 188 | switch (to) { |
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| 189 | case 2: return roar_conv_chans_1to28(out, in, samples); |
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| 190 | default: return roar_conv_chans_1ton8(out, in, samples, to); |
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| 191 | } |
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| 192 | break; |
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| 193 | case 2: |
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| 194 | switch (to) { |
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| 195 | case 1: return roar_conv_chans_2to18(out, in, samples); |
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| 196 | default: return -1; |
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| 197 | } |
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| 198 | break; |
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| 199 | default: |
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| 200 | switch (to) { |
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| 201 | case 1: return roar_conv_chans_nto18(out, in, samples, from); |
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| 202 | default: return -1; |
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| 203 | } |
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| 204 | } |
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| 205 | break; |
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| 206 | case 16: |
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| 207 | switch (from) { |
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| 208 | case 1: |
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| 209 | switch (to) { |
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| 210 | case 2: return roar_conv_chans_1to216(out, in, samples); |
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| 211 | default: return roar_conv_chans_1ton16(out, in, samples, to); |
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| 212 | } |
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| 213 | break; |
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| 214 | case 2: |
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| 215 | switch (to) { |
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| 216 | case 1: return roar_conv_chans_2to116(out, in, samples); |
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[2741] | 217 | case 3: return roar_conv_chans_2to316(out, in, samples); |
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[2742] | 218 | case 4: return roar_conv_chans_2to416(out, in, samples); |
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| 219 | case 5: return roar_conv_chans_2to516(out, in, samples); |
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| 220 | case 6: return roar_conv_chans_2to616(out, in, samples); |
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[850] | 221 | default: return -1; |
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| 222 | } |
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| 223 | break; |
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[2750] | 224 | case 4: |
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| 225 | switch (to) { |
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| 226 | case 1: return roar_conv_chans_nto116(out, in, samples, 4); |
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| 227 | case 2: return roar_conv_chans_4to216(out, in, samples); |
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| 228 | default: return -1; |
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| 229 | } |
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| 230 | break; |
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[850] | 231 | default: |
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| 232 | switch (to) { |
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| 233 | case 1: return roar_conv_chans_nto116(out, in, samples, from); |
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| 234 | default: return -1; |
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| 235 | } |
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| 236 | } |
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| 237 | break; |
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| 238 | default: return -1; |
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[0] | 239 | } |
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| 240 | |
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| 241 | return -1; |
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| 242 | } |
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| 243 | |
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| 244 | int roar_conv_chans_1ton8 (void * out, void * in, int samples, int to) { |
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| 245 | char * ip = (char*) in, * op = (char*) out; |
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| 246 | int i; |
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| 247 | int c; |
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| 248 | |
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| 249 | for (i = samples - 1; i >= 0; i--) |
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| 250 | for (c = to - 1; c >= 0; c--) |
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| 251 | op[i*to + c] = ip[i]; |
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| 252 | |
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| 253 | return 0; |
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| 254 | } |
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| 255 | |
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[850] | 256 | int roar_conv_chans_1to28 (void * out, void * in, int samples) { |
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| 257 | char * ip = (char*) in, * op = (char*) out; |
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[852] | 258 | int i, h; |
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[850] | 259 | |
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[852] | 260 | samples--; |
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[850] | 261 | |
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[852] | 262 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 263 | op[i + 0] = ip[h]; |
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| 264 | op[i + 1] = ip[h]; |
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[850] | 265 | } |
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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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[0] | 270 | int roar_conv_chans_1ton16 (void * out, void * in, int samples, int to) { |
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| 271 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 272 | int i; |
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| 273 | int c; |
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| 274 | |
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| 275 | for (i = samples - 1; i >= 0; i--) |
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| 276 | for (c = to - 1; c >= 0; c--) |
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| 277 | op[i*to + c] = ip[i]; |
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| 278 | |
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| 279 | return 0; |
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| 280 | } |
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| 281 | |
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[850] | 282 | int roar_conv_chans_1to216 (void * out, void * in, int samples) { |
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| 283 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 284 | int i, h; |
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[850] | 285 | |
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[852] | 286 | samples--; |
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[850] | 287 | |
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[852] | 288 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 289 | op[i + 0] = ip[h]; |
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| 290 | op[i + 1] = ip[h]; |
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[850] | 291 | } |
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| 292 | |
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| 293 | return 0; |
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| 294 | } |
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| 295 | |
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[626] | 296 | int roar_conv_chans_nto18 (void * out, void * in, int samples, int from) { |
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| 297 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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| 298 | int i; |
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| 299 | int c; |
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| 300 | register int s; |
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| 301 | |
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| 302 | samples /= from; |
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| 303 | |
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| 304 | for (i = samples - 1; i >= 0; i--) { |
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| 305 | s = 0; |
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| 306 | |
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| 307 | for (c = 0; c < from; c++) |
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| 308 | s += ip[i*from + c]; |
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| 309 | |
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| 310 | s /= from; |
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| 311 | op[i] = s; |
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| 312 | } |
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| 313 | |
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| 314 | return 0; |
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| 315 | } |
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| 316 | |
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[850] | 317 | int roar_conv_chans_2to18 (void * out, void * in, int samples) { |
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| 318 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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[852] | 319 | int i, h; |
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[850] | 320 | |
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| 321 | samples -= 2; |
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| 322 | |
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[852] | 323 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) |
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| 324 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[850] | 325 | |
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| 326 | return 0; |
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| 327 | } |
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| 328 | |
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[624] | 329 | int roar_conv_chans_nto116 (void * out, void * in, int samples, int from) { |
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| 330 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 331 | int i; |
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| 332 | int c; |
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| 333 | register int s; |
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| 334 | |
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| 335 | samples /= from; |
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| 336 | |
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| 337 | for (i = samples - 1; i >= 0; i--) { |
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| 338 | s = 0; |
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| 339 | |
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| 340 | for (c = 0; c < from; c++) |
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| 341 | s += ip[i*from + c]; |
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| 342 | |
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| 343 | s /= from; |
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| 344 | op[i] = s; |
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| 345 | } |
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| 346 | |
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| 347 | return 0; |
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| 348 | } |
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| 349 | |
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[850] | 350 | int roar_conv_chans_2to116 (void * out, void * in, int samples) { |
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| 351 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 352 | int i, h; |
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[850] | 353 | |
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[1064] | 354 | ROAR_DBG("roar_conv_chans_2to116(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 355 | |
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[850] | 356 | samples -= 2; |
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| 357 | |
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[1064] | 358 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) { |
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| 359 | 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] | 360 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[1064] | 361 | } |
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[850] | 362 | |
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| 363 | return 0; |
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| 364 | } |
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| 365 | |
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[2741] | 366 | int roar_conv_chans_2to38 (void * out, void * in, int samples); |
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| 367 | int roar_conv_chans_2to316 (void * out, void * in, int samples) { |
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| 368 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 369 | int i, h; |
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| 370 | |
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| 371 | samples -= 2; |
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| 372 | |
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| 373 | i = samples; |
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| 374 | h = (samples / 2) * 3; |
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| 375 | |
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| 376 | for (; i >= 0; i -= 2, h -= 3) { |
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| 377 | op[h+0] = ip[i+0]; |
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| 378 | op[h+1] = ip[i+1]; |
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| 379 | op[h+2] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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| 380 | } |
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| 381 | |
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| 382 | return 0; |
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| 383 | } |
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| 384 | |
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| 385 | int roar_conv_chans_2to48 (void * out, void * in, int samples); |
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[2742] | 386 | int roar_conv_chans_2to416 (void * out, void * in, int samples) { |
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| 387 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 388 | int i, h; |
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| 389 | |
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| 390 | samples -= 2; |
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| 391 | |
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| 392 | i = samples; |
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| 393 | h = (samples / 2) * 4; |
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| 394 | |
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[2743] | 395 | for (; i >= 0; i -= 2, h -= 4) { |
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[2742] | 396 | op[h+0] = ip[i+0]; |
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| 397 | op[h+1] = ip[i+1]; |
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| 398 | op[h+2] = ip[i+0]; |
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| 399 | op[h+3] = ip[i+1]; |
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| 400 | } |
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| 401 | |
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| 402 | return 0; |
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| 403 | } |
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| 404 | |
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[2741] | 405 | int roar_conv_chans_2to58 (void * out, void * in, int samples); |
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[2742] | 406 | int roar_conv_chans_2to516 (void * out, void * in, int samples) { |
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| 407 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 408 | int i, h; |
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| 409 | |
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| 410 | samples -= 2; |
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| 411 | |
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| 412 | i = samples; |
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| 413 | h = (samples / 2) * 5; |
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| 414 | |
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[2743] | 415 | for (; i >= 0; i -= 2, h -= 5) { |
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[2742] | 416 | op[h+0] = ip[i+0]; |
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| 417 | op[h+1] = ip[i+1]; |
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| 418 | op[h+2] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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| 419 | op[h+3] = ip[i+0]; |
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| 420 | op[h+4] = ip[i+1]; |
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| 421 | } |
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| 422 | |
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| 423 | return 0; |
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| 424 | } |
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[2741] | 425 | int roar_conv_chans_2to68 (void * out, void * in, int samples); |
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[2742] | 426 | int roar_conv_chans_2to616 (void * out, void * in, int samples) { |
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| 427 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 428 | int i, h; |
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| 429 | |
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| 430 | samples -= 2; |
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| 431 | |
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| 432 | i = samples; |
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[2743] | 433 | h = (samples / 2) * 6; |
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[2742] | 434 | |
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[2743] | 435 | for (; i >= 0; i -= 2, h -= 6) { |
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[2742] | 436 | op[h+0] = ip[i+0]; |
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| 437 | op[h+1] = ip[i+1]; |
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| 438 | op[h+2] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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| 439 | op[h+3] = op[h+2]; |
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| 440 | op[h+4] = ip[i+0]; |
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| 441 | op[h+5] = ip[i+1]; |
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| 442 | } |
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| 443 | |
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| 444 | return 0; |
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| 445 | } |
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[2741] | 446 | |
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[2749] | 447 | int roar_conv_chans_3to28 (void * out, void * in, int samples); |
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| 448 | int roar_conv_chans_3to216 (void * out, void * in, int samples); |
---|
| 449 | int roar_conv_chans_4to28 (void * out, void * in, int samples); |
---|
[2750] | 450 | int roar_conv_chans_4to216 (void * out, void * in, int samples) { |
---|
| 451 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
---|
| 452 | int i, h; |
---|
| 453 | |
---|
| 454 | samples -= 4; |
---|
| 455 | |
---|
| 456 | for (i = h = 0; i < samples; i += 4, h += 2) { |
---|
| 457 | op[h+0] = ((int)ip[i + 0] + (int)ip[i + 2]) / 2; |
---|
| 458 | op[h+1] = ((int)ip[i + 1] + (int)ip[i + 3]) / 2; |
---|
| 459 | } |
---|
| 460 | |
---|
| 461 | return 0; |
---|
| 462 | } |
---|
| 463 | |
---|
[2749] | 464 | int roar_conv_chans_5to28 (void * out, void * in, int samples); |
---|
| 465 | int roar_conv_chans_5to216 (void * out, void * in, int samples); |
---|
| 466 | int roar_conv_chans_6to28 (void * out, void * in, int samples); |
---|
| 467 | int roar_conv_chans_6to216 (void * out, void * in, int samples); |
---|
| 468 | |
---|
| 469 | |
---|
[2741] | 470 | |
---|
[0] | 471 | int roar_conv_rate (void * out, void * in, int samples, int from, int to, int bits, int channels) { |
---|
[2386] | 472 | #ifdef ROAR_HAVE_LIBSAMPLERATE |
---|
| 473 | return roar_conv_rate_SRC(out, in, samples, from, to, bits, channels); |
---|
| 474 | #else |
---|
[0] | 475 | if ( bits == 8 ) |
---|
| 476 | return roar_conv_rate_8(out, in, samples, from, to, channels); |
---|
| 477 | |
---|
| 478 | if ( bits == 16 ) |
---|
| 479 | return roar_conv_rate_16(out, in, samples, from, to, channels); |
---|
| 480 | |
---|
| 481 | return -1; |
---|
[2386] | 482 | #endif |
---|
[0] | 483 | } |
---|
| 484 | |
---|
| 485 | int roar_conv_rate_8 (void * out, void * in, int samples, int from, int to, int channels) { |
---|
| 486 | return -1; |
---|
| 487 | } |
---|
[33] | 488 | |
---|
[0] | 489 | int roar_conv_rate_16 (void * out, void * in, int samples, int from, int to, int channels) { |
---|
[1061] | 490 | if ( from > to ) { |
---|
| 491 | switch (channels) { |
---|
| 492 | case 1: |
---|
| 493 | return roar_conv_rate_161zoh(out, in, samples, from, to); |
---|
| 494 | case 2: |
---|
[1064] | 495 | return roar_conv_rate_162zoh(out, in, samples, from, to); |
---|
[1061] | 496 | default: |
---|
| 497 | return -1; |
---|
| 498 | } |
---|
| 499 | } else { |
---|
| 500 | if ( channels == 1 ) { |
---|
| 501 | printf("roar_conv_rate_16(): samples=%i -> %i, rate=%i -> %i\n", samples*from/to, samples, from, to); |
---|
| 502 | return roar_conv_poly4_16s((int16_t*) out, (int16_t*) in, samples, samples*from/to, (float)from/to); |
---|
| 503 | // return roar_conv_poly4_16((int16_t*) out, (int16_t*) in, samples*to/from, samples); |
---|
| 504 | } |
---|
[386] | 505 | } |
---|
| 506 | |
---|
[0] | 507 | return -1; |
---|
| 508 | } |
---|
| 509 | |
---|
[1061] | 510 | int roar_conv_rate_161zoh(void * out, void * in, int samples, int from, int to) { |
---|
| 511 | int16_t * ip = in; |
---|
| 512 | int16_t * op = out; |
---|
| 513 | float t = 0; |
---|
| 514 | float step = (float)to/from; |
---|
| 515 | int i; |
---|
| 516 | |
---|
| 517 | for (i= 0; i < samples; i++) { |
---|
| 518 | op[(int)t] = ip[i]; |
---|
| 519 | t += step; |
---|
| 520 | } |
---|
| 521 | |
---|
| 522 | return 0; |
---|
| 523 | } |
---|
| 524 | |
---|
[1064] | 525 | int roar_conv_rate_162zoh(void * out, void * in, int samples, int from, int to) { |
---|
| 526 | int16_t * ip = in; |
---|
| 527 | int16_t * op = out; |
---|
| 528 | float t = 0; |
---|
| 529 | float step = (float)to/from; |
---|
| 530 | int i; |
---|
| 531 | |
---|
| 532 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
---|
| 533 | samples /= 2; |
---|
[2386] | 534 | // samples -= 1; |
---|
[1064] | 535 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
---|
| 536 | |
---|
| 537 | for (i= 0; i < samples; i++) { |
---|
| 538 | ROAR_DBG("roar_conv_rate_162zoh(*): t=%f, i=%i // op[%i] = ip[%i]", t, i, 2*(int)t, 2*i); |
---|
| 539 | op[2*(int)t ] = ip[2*i ]; |
---|
| 540 | op[2*(int)t + 1] = ip[2*i + 1]; |
---|
| 541 | t += step; |
---|
| 542 | } |
---|
| 543 | |
---|
| 544 | return 0; |
---|
| 545 | } |
---|
| 546 | |
---|
[2386] | 547 | int roar_conv_rate_SRC (void * out, void * in, int samples, int from, int to, int bits, int channels) { |
---|
| 548 | #ifdef ROAR_HAVE_LIBSAMPLERATE |
---|
| 549 | double radio = (double) to / (double) from; |
---|
| 550 | int outsamples = radio * samples; |
---|
[3063] | 551 | float * inf = roar_mm_malloc(samples*sizeof(float)); |
---|
| 552 | float * outf = roar_mm_malloc(outsamples*sizeof(float)); |
---|
[2386] | 553 | int i; |
---|
| 554 | SRC_DATA srcdata; |
---|
| 555 | |
---|
| 556 | ROAR_DBG("roar_conv_rate_SRC(*): radio=%lf, samples=%i, outsamples=%i", radio, samples, outsamples); |
---|
| 557 | |
---|
| 558 | if ( inf == NULL ) { |
---|
| 559 | if ( outf != NULL ) |
---|
[3063] | 560 | roar_mm_free(outf); |
---|
[2386] | 561 | |
---|
| 562 | return -1; |
---|
| 563 | } |
---|
| 564 | |
---|
| 565 | if ( outf == NULL ) { |
---|
| 566 | if ( inf != NULL ) |
---|
[3063] | 567 | roar_mm_free(inf); |
---|
[2386] | 568 | |
---|
| 569 | return -1; |
---|
| 570 | } |
---|
| 571 | |
---|
| 572 | switch (bits) { |
---|
| 573 | case 8: |
---|
| 574 | for (i = 0; i < samples; i++) |
---|
| 575 | inf[i] = *(((int8_t *)in)+i) / 128.0; |
---|
| 576 | break; |
---|
| 577 | case 16: |
---|
| 578 | for (i = 0; i < samples; i++) |
---|
| 579 | inf[i] = *(((int16_t*)in)+i) / 32768.0; |
---|
| 580 | break; |
---|
| 581 | case 32: |
---|
| 582 | for (i = 0; i < samples; i++) |
---|
| 583 | inf[i] = *(((int32_t*)in)+i) / 2147483648.0; |
---|
| 584 | break; |
---|
| 585 | default: |
---|
[3063] | 586 | roar_mm_free(outf); |
---|
| 587 | roar_mm_free(inf); |
---|
[2386] | 588 | return -1; |
---|
| 589 | } |
---|
| 590 | |
---|
| 591 | srcdata.data_in = inf; |
---|
| 592 | srcdata.data_out = outf; |
---|
| 593 | srcdata.input_frames = samples/channels; |
---|
| 594 | srcdata.output_frames = outsamples/channels; |
---|
| 595 | srcdata.src_ratio = radio; |
---|
| 596 | |
---|
[2388] | 597 | if ( src_simple(&srcdata, SRC_ZERO_ORDER_HOLD, channels) != 0 ) { |
---|
[3063] | 598 | roar_mm_free(outf); |
---|
| 599 | roar_mm_free(inf); |
---|
[2386] | 600 | return -1; |
---|
| 601 | } |
---|
| 602 | |
---|
| 603 | switch (bits) { |
---|
| 604 | case 8: |
---|
[2388] | 605 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 606 | *(((int8_t *)out)+i) = outf[i] * 128.0; |
---|
| 607 | break; |
---|
| 608 | case 16: |
---|
[2388] | 609 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 610 | *(((int16_t*)out)+i) = outf[i] * 32768.0; |
---|
| 611 | break; |
---|
| 612 | case 32: |
---|
[2388] | 613 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 614 | *(((int32_t*)out)+i) = outf[i] * 2147483648.0; |
---|
| 615 | break; |
---|
| 616 | // no errors here, they are handled above |
---|
| 617 | } |
---|
| 618 | |
---|
[3063] | 619 | roar_mm_free(outf); |
---|
| 620 | roar_mm_free(inf); |
---|
[2386] | 621 | |
---|
| 622 | return 0; |
---|
| 623 | #else |
---|
| 624 | return -1; |
---|
| 625 | #endif |
---|
| 626 | } |
---|
| 627 | |
---|
[4111] | 628 | int roar_conv_rate2 (void * out, void * in, int samples, int outsamples, int bits, int channels) { |
---|
[4115] | 629 | ROAR_DBG("roar_conv_rate2(out=%p, in=%p, samples=%i, outsamples=%i, bits=%i, channels=%i) = ?", out, in, samples, outsamples, bits, channels); |
---|
[4111] | 630 | switch (bits) { |
---|
| 631 | case 16: |
---|
| 632 | return roar_conv_poly3_16(out, in, outsamples, samples, channels); |
---|
| 633 | break; |
---|
| 634 | } |
---|
| 635 | return -1; |
---|
| 636 | } |
---|
| 637 | |
---|
[875] | 638 | int roar_conv_signedness (void * out, void * in, int samples, int from, int to, int bits) { |
---|
| 639 | |
---|
| 640 | if ( from != to ) { |
---|
| 641 | if ( from && !to ) { |
---|
| 642 | switch (bits) { |
---|
| 643 | case 8: roar_conv_codec_s2u8( out, in, samples); break; |
---|
| 644 | case 16: roar_conv_codec_s2u16(out, in, samples); break; |
---|
| 645 | case 32: roar_conv_codec_s2u32(out, in, samples); break; |
---|
| 646 | default: |
---|
| 647 | errno = ENOSYS; |
---|
| 648 | return -1; |
---|
| 649 | } |
---|
| 650 | } else if ( !from && to ) { |
---|
| 651 | switch (bits) { |
---|
| 652 | case 8: roar_conv_codec_u2s8( out, in, samples); break; |
---|
| 653 | case 16: roar_conv_codec_u2s16(out, in, samples); break; |
---|
| 654 | case 32: roar_conv_codec_u2s32(out, in, samples); break; |
---|
| 655 | default: |
---|
| 656 | errno = ENOSYS; |
---|
| 657 | return -1; |
---|
| 658 | } |
---|
| 659 | } else { |
---|
[876] | 660 | return -1; |
---|
| 661 | } |
---|
| 662 | } else { |
---|
| 663 | if ( out == in ) |
---|
| 664 | return 0; |
---|
[875] | 665 | |
---|
[876] | 666 | memcpy(out, in, samples * bits / 8); |
---|
| 667 | return 0; |
---|
[875] | 668 | } |
---|
| 669 | |
---|
[876] | 670 | return 0; |
---|
[875] | 671 | } |
---|
| 672 | |
---|
[876] | 673 | int roar_conv_codec (void * out, void * in, int samples, int from, int to, int bits) { |
---|
[0] | 674 | int inbo = ROAR_CODEC_BYTE_ORDER(from), outbo = ROAR_CODEC_BYTE_ORDER(to); |
---|
| 675 | int ins = ROAR_CODEC_IS_SIGNED(from), outs = ROAR_CODEC_IS_SIGNED(to); |
---|
[858] | 676 | void * nin = in; |
---|
[0] | 677 | |
---|
[858] | 678 | |
---|
[876] | 679 | ROAR_DBG("roar_conv_codec(out=%p, in=%p, samples=%i, from=%i(%s), to=%i(%s), bits=%i) = ?", |
---|
[869] | 680 | out, in, samples, from, roar_codec2str(from), to, roar_codec2str(to), bits); |
---|
| 681 | |
---|
[875] | 682 | roar_conv_endian(out, in, samples, inbo, outbo, bits); |
---|
| 683 | nin = out; |
---|
[0] | 684 | |
---|
[875] | 685 | return roar_conv_signedness(out, in, samples, ins, outs, bits); |
---|
[0] | 686 | } |
---|
| 687 | |
---|
| 688 | int roar_conv_codec_s2u8 (void * out, void * in, int samples) { |
---|
| 689 | char * ip = in; |
---|
| 690 | unsigned char * op = out; |
---|
| 691 | int i; |
---|
| 692 | |
---|
| 693 | for(i = 0; i < samples; i++) |
---|
| 694 | op[i] = ip[i] + 128; |
---|
| 695 | |
---|
| 696 | return 0; |
---|
| 697 | } |
---|
| 698 | |
---|
[633] | 699 | int roar_conv_codec_s2u16 (void * out, void * in, int samples) { |
---|
| 700 | int16_t * ip = in; |
---|
| 701 | uint16_t * op = out; |
---|
| 702 | int i; |
---|
| 703 | |
---|
[2797] | 704 | for(i = 0; i < samples; i++) |
---|
| 705 | op[i] = ip[i] + 32768; |
---|
[633] | 706 | |
---|
| 707 | return 0; |
---|
| 708 | } |
---|
[0] | 709 | |
---|
[846] | 710 | int roar_conv_codec_s2u32 (void * out, void * in, int samples) { |
---|
| 711 | int32_t * ip = in; |
---|
| 712 | uint32_t * op = out; |
---|
| 713 | int i; |
---|
| 714 | |
---|
| 715 | for(i = 0; i < samples; i++) |
---|
| 716 | op[i] = ip[i] + 2147483648U; |
---|
| 717 | |
---|
| 718 | return 0; |
---|
| 719 | } |
---|
| 720 | |
---|
| 721 | int roar_conv_codec_u2s8 (void * out, void * in, int samples) { |
---|
| 722 | unsigned char * ip = in; |
---|
| 723 | char * op = out; |
---|
| 724 | int i; |
---|
| 725 | |
---|
| 726 | for(i = 0; i < samples; i++) |
---|
| 727 | op[i] = ip[i] - 128; |
---|
| 728 | |
---|
| 729 | return 0; |
---|
| 730 | } |
---|
| 731 | |
---|
| 732 | int roar_conv_codec_u2s16 (void * out, void * in, int samples) { |
---|
| 733 | uint16_t * ip = in; |
---|
| 734 | int16_t * op = out; |
---|
| 735 | int i; |
---|
| 736 | |
---|
| 737 | for(i = 0; i < samples; i++) |
---|
| 738 | op[i] = ip[i] - 32768; |
---|
| 739 | |
---|
| 740 | return 0; |
---|
| 741 | } |
---|
| 742 | |
---|
| 743 | int roar_conv_codec_u2s32 (void * out, void * in, int samples) { |
---|
| 744 | uint32_t * ip = in; |
---|
| 745 | int32_t * op = out; |
---|
| 746 | int i; |
---|
| 747 | |
---|
| 748 | for(i = 0; i < samples; i++) |
---|
| 749 | op[i] = ip[i] - 2147483648U; |
---|
| 750 | |
---|
| 751 | return 0; |
---|
| 752 | } |
---|
| 753 | |
---|
[875] | 754 | |
---|
| 755 | int roar_conv_endian (void * out, void * in, int samples, int from, int to, int bits) { |
---|
| 756 | |
---|
| 757 | if ( bits == 8 ) { |
---|
| 758 | from = to = ROAR_CODEC_NATIVE_ENDIAN; |
---|
| 759 | |
---|
| 760 | } else if ( bits == 16 ) { |
---|
| 761 | if ( from == ROAR_CODEC_PDP ) |
---|
| 762 | from = ROAR_CODEC_LE; |
---|
| 763 | if ( to == ROAR_CODEC_PDP ) |
---|
| 764 | to = ROAR_CODEC_LE; |
---|
| 765 | } |
---|
| 766 | |
---|
[876] | 767 | ROAR_DBG("roar_conv_endian(out=%p, in=%p, samples=%i, from=%i, to=%i, bits=%i) = ?", out, in, samples, from, to, bits); |
---|
| 768 | |
---|
[875] | 769 | if ( from == to ) { |
---|
| 770 | if ( in != out ) { |
---|
| 771 | memcpy(out, in, samples * bits / 8); |
---|
| 772 | } |
---|
[876] | 773 | return 0; |
---|
| 774 | } else { |
---|
[3605] | 775 | switch (bits) { |
---|
| 776 | case 16: |
---|
| 777 | // in this case we can only have LE vs. BE, so, only need to swap: |
---|
| 778 | ROAR_DBG("roar_conv_endian(*): Doing 16 bit byteswap"); |
---|
| 779 | return roar_conv_endian_16(out, in, samples); |
---|
| 780 | break; |
---|
| 781 | case 24: |
---|
| 782 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
---|
| 783 | return roar_conv_endian_24(out, in, samples); |
---|
| 784 | } else { // what the hell is PDP eddines in 24 bit mode? |
---|
| 785 | return -1; |
---|
| 786 | } |
---|
| 787 | break; |
---|
| 788 | case 32: |
---|
| 789 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
---|
| 790 | return roar_conv_endian_32(out, in, samples); |
---|
| 791 | } else { // need to handle 32 PDP eddines here? |
---|
| 792 | if ( from == ROAR_CODEC_BE ) |
---|
| 793 | if ( roar_conv_endian_32(out, in, samples) == -1 ) |
---|
| 794 | return -1; |
---|
| 795 | |
---|
| 796 | if ( roar_conv_endian_16(out, in, samples*2) == -1 ) |
---|
| 797 | return -1; |
---|
| 798 | |
---|
| 799 | if ( to == ROAR_CODEC_BE ) |
---|
| 800 | if ( roar_conv_endian_32(out, in, samples) == -1 ) |
---|
| 801 | return -1; |
---|
| 802 | |
---|
| 803 | return 0; |
---|
| 804 | } |
---|
| 805 | break; |
---|
| 806 | default: |
---|
| 807 | return -1; |
---|
| 808 | break; |
---|
[875] | 809 | } |
---|
| 810 | } |
---|
| 811 | |
---|
| 812 | return -1; |
---|
| 813 | } |
---|
| 814 | |
---|
| 815 | |
---|
[857] | 816 | int roar_conv_endian_16 (void * out, void * in, int samples) { |
---|
| 817 | char * ip = in; |
---|
| 818 | char * op = out; |
---|
| 819 | register char c; |
---|
| 820 | int i; |
---|
| 821 | |
---|
| 822 | samples *= 2; |
---|
| 823 | |
---|
| 824 | if ( out != in ) { |
---|
[858] | 825 | // printf("out != in\n"); |
---|
[857] | 826 | for(i = 0; i < samples; i += 2) { |
---|
[858] | 827 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
---|
[857] | 828 | op[i ] = ip[i+1]; |
---|
| 829 | op[i+1] = ip[i ]; |
---|
| 830 | } |
---|
| 831 | } else { |
---|
[858] | 832 | // printf("out == in\n"); |
---|
[857] | 833 | for(i = 0; i < samples; i += 2) { |
---|
| 834 | c = ip[i+1]; |
---|
| 835 | op[i+1] = ip[i ]; |
---|
| 836 | op[i ] = c; |
---|
| 837 | } |
---|
| 838 | } |
---|
| 839 | |
---|
| 840 | return 0; |
---|
| 841 | } |
---|
| 842 | |
---|
[859] | 843 | int roar_conv_endian_24 (void * out, void * in, int samples) { |
---|
| 844 | char * ip = in; |
---|
| 845 | char * op = out; |
---|
| 846 | register char c; |
---|
| 847 | int i; |
---|
| 848 | |
---|
| 849 | samples *= 3; |
---|
| 850 | |
---|
| 851 | if ( out != in ) { |
---|
| 852 | // printf("out != in\n"); |
---|
| 853 | for(i = 0; i < samples; i += 3) { |
---|
| 854 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
---|
| 855 | op[i ] = ip[i+2]; |
---|
| 856 | op[i+2] = ip[i ]; |
---|
| 857 | } |
---|
| 858 | } else { |
---|
| 859 | // printf("out == in\n"); |
---|
| 860 | for(i = 0; i < samples; i += 3) { |
---|
| 861 | c = ip[i+2]; |
---|
| 862 | op[i+2] = ip[i ]; |
---|
| 863 | op[i ] = c; |
---|
| 864 | } |
---|
| 865 | } |
---|
| 866 | |
---|
| 867 | return 0; |
---|
| 868 | } |
---|
| 869 | |
---|
[869] | 870 | int roar_conv_endian_32 (void * out, void * in, int samples) { |
---|
| 871 | int32_t * ip = in; |
---|
| 872 | int32_t * op = out; |
---|
| 873 | union { |
---|
| 874 | int32_t val; |
---|
| 875 | char data[4]; |
---|
| 876 | } c, h; |
---|
| 877 | int i; |
---|
| 878 | |
---|
| 879 | // may the holly optimizer save our souls! |
---|
| 880 | |
---|
| 881 | ROAR_DBG("roar_conv_endian_32(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
---|
| 882 | |
---|
| 883 | for (i = 0; i < samples; i++) { |
---|
| 884 | c.val = ip[i]; |
---|
| 885 | h.data[0] = c.data[3]; |
---|
| 886 | h.data[1] = c.data[2]; |
---|
| 887 | h.data[2] = c.data[1]; |
---|
| 888 | h.data[3] = c.data[0]; |
---|
| 889 | op[i] = h.val; |
---|
| 890 | } |
---|
| 891 | |
---|
| 892 | return 0; |
---|
| 893 | } |
---|
| 894 | |
---|
[0] | 895 | int roar_conv (void * out, void * in, int samples, struct roar_audio_info * from, struct roar_audio_info * to) { |
---|
| 896 | void * ip = in; |
---|
[1060] | 897 | void * real_out = NULL; |
---|
[1059] | 898 | size_t from_size, to_size; |
---|
[0] | 899 | |
---|
| 900 | // TODO: decide how to work around both in and out beeing to small to hold all |
---|
| 901 | // data between the steps. |
---|
| 902 | // for the moment: guess out >= in |
---|
| 903 | |
---|
[1060] | 904 | from_size = (from->bits * samples) / 8; |
---|
[1064] | 905 | to_size = ( to->bits * samples * to->rate * to->channels) / (8 * from->rate * from->channels); |
---|
| 906 | |
---|
| 907 | ROAR_DBG("roar_conv(*): size: %i->%i", from_size, to_size); |
---|
[1059] | 908 | |
---|
| 909 | if ( to_size < from_size ) { |
---|
| 910 | real_out = out; |
---|
| 911 | |
---|
[3063] | 912 | if ( (out = roar_mm_malloc(from_size)) == NULL ) |
---|
[1059] | 913 | return -1; |
---|
[1060] | 914 | |
---|
[3063] | 915 | ROAR_DBG("roar_conv(*): roar_mm_malloc(%i)=%p", (int)from_size, out); |
---|
[1059] | 916 | } |
---|
| 917 | |
---|
[876] | 918 | ROAR_DBG("roar_conv(*): bo conv: %i->%i(native)", ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN); |
---|
| 919 | |
---|
[875] | 920 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[876] | 921 | ROAR_DBG("roar_conv(*): doing bo input conv"); |
---|
[1059] | 922 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 923 | if ( to_size < from_size ) |
---|
[3063] | 924 | roar_mm_free(out); |
---|
[875] | 925 | return -1; |
---|
[1059] | 926 | } else { |
---|
[875] | 927 | ip = out; |
---|
[1059] | 928 | } |
---|
[875] | 929 | } |
---|
| 930 | |
---|
[0] | 931 | if ( from->bits != to->bits ) { |
---|
[1059] | 932 | if ( roar_conv_bits(out, ip, samples, from->bits, to->bits) == -1 ) { |
---|
| 933 | if ( to_size < from_size ) |
---|
[3063] | 934 | roar_mm_free(out); |
---|
[0] | 935 | return -1; |
---|
[1059] | 936 | } else { |
---|
[0] | 937 | ip = out; |
---|
[1059] | 938 | } |
---|
[0] | 939 | } |
---|
| 940 | |
---|
[875] | 941 | if ( ROAR_CODEC_IS_SIGNED(from->codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
[1059] | 942 | if ( roar_conv_signedness(out, ip, samples, ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), to->bits) == -1 ) { |
---|
| 943 | if ( to_size < from_size ) |
---|
[3063] | 944 | roar_mm_free(out); |
---|
[875] | 945 | return -1; |
---|
[1059] | 946 | } else { |
---|
[875] | 947 | ip = out; |
---|
[1059] | 948 | } |
---|
[875] | 949 | } |
---|
| 950 | |
---|
| 951 | /* |
---|
[852] | 952 | if ( from->codec != to->codec ) { |
---|
[876] | 953 | if ( roar_conv_codec (out, ip, samples, from->codec, to->codec, to->bits) == -1 ) |
---|
[852] | 954 | return -1; |
---|
| 955 | else |
---|
| 956 | ip = out; |
---|
| 957 | } |
---|
[875] | 958 | */ |
---|
[852] | 959 | |
---|
[386] | 960 | if ( from->rate != to->rate ) { |
---|
[1059] | 961 | if ( roar_conv_rate(out, ip, samples, from->rate, to->rate, to->bits, from->channels) == -1 ) { |
---|
[1060] | 962 | ROAR_DBG("roar_conv(*): failed to convert rate %i->%i (%ich%ibits)", from->rate, to->rate, to->bits, from->channels); |
---|
[1064] | 963 | if ( to_size < from_size ) |
---|
[3063] | 964 | roar_mm_free(out); |
---|
[0] | 965 | return -1; |
---|
[1059] | 966 | } else { |
---|
[0] | 967 | ip = out; |
---|
[1064] | 968 | samples = (samples * to->rate) / from->rate; |
---|
[1059] | 969 | } |
---|
[0] | 970 | } |
---|
| 971 | |
---|
[386] | 972 | if ( from->channels != to->channels ) { |
---|
[1059] | 973 | if ( roar_conv_chans(out, ip, samples, from->channels, to->channels, to->bits) == -1 ) { |
---|
| 974 | if ( to_size < from_size ) |
---|
[3063] | 975 | roar_mm_free(out); |
---|
[0] | 976 | return -1; |
---|
[1059] | 977 | } else { |
---|
[0] | 978 | ip = out; |
---|
[1059] | 979 | } |
---|
[0] | 980 | } |
---|
| 981 | |
---|
[875] | 982 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[1059] | 983 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 984 | if ( to_size < from_size ) |
---|
[3063] | 985 | roar_mm_free(out); |
---|
[875] | 986 | return -1; |
---|
[1059] | 987 | } else { |
---|
[875] | 988 | ip = out; |
---|
[1059] | 989 | } |
---|
| 990 | } |
---|
| 991 | |
---|
| 992 | if ( to_size < from_size ) { |
---|
[1060] | 993 | ROAR_DBG("roar_conv(*): memcpy(%p, %p, %i) = ?", real_out, out, (int)to_size); |
---|
[1059] | 994 | memcpy(real_out, out, to_size); |
---|
[3063] | 995 | roar_mm_free(out); |
---|
[1064] | 996 | ROAR_DBG("roar_conv(*): free(%p): OK!", out); |
---|
[875] | 997 | } |
---|
| 998 | |
---|
[0] | 999 | return 0; |
---|
| 1000 | } |
---|
| 1001 | |
---|
[2094] | 1002 | int roar_conv2(void * out, void * in, |
---|
| 1003 | size_t inlen, |
---|
| 1004 | struct roar_audio_info * from, struct roar_audio_info * to, |
---|
| 1005 | size_t bufsize) { |
---|
| 1006 | size_t samples; |
---|
| 1007 | size_t needed_buffer; |
---|
[2096] | 1008 | void * cin = in; |
---|
| 1009 | struct roar_audio_info cinfo; |
---|
[2098] | 1010 | int need_signed = 0; |
---|
[4115] | 1011 | size_t outsamples; |
---|
[2096] | 1012 | |
---|
| 1013 | memcpy(&cinfo, from, sizeof(cinfo)); |
---|
[383] | 1014 | |
---|
[2388] | 1015 | ROAR_DBG("roar_conv2(out=%p, in=%p, inlen=%lu, from=%p{...}, to=%p{...}, bufsize=%lu", out, in, inlen, from, to, bufsize); |
---|
| 1016 | |
---|
[2386] | 1017 | /* |
---|
| 1018 | if ( in != out ) { |
---|
| 1019 | memset(out, 0xA0, bufsize); |
---|
| 1020 | } else { |
---|
| 1021 | ROAR_WARN("roar_conv2(*): in==out!"); |
---|
[2388] | 1022 | memset(out+inlen, 0xA0, bufsize-inlen); |
---|
[2386] | 1023 | } |
---|
| 1024 | */ |
---|
| 1025 | |
---|
[4110] | 1026 | // calculate number of input samples: |
---|
[2099] | 1027 | samples = (inlen * 8) / (from->bits); |
---|
| 1028 | |
---|
[2100] | 1029 | ROAR_DBG("roar_conv2(*): input samples: %i", samples); |
---|
[2094] | 1030 | |
---|
[4111] | 1031 | #if 0 |
---|
[2094] | 1032 | // calculate size per frame |
---|
| 1033 | needed_buffer = ROAR_MAX(from->channels, to->channels) * ROAR_MAX(from->bits, to->bits) / 8; |
---|
| 1034 | |
---|
| 1035 | needed_buffer *= samples; |
---|
[2099] | 1036 | needed_buffer /= from->channels; |
---|
[2094] | 1037 | |
---|
| 1038 | if ( from->rate < to->rate ) |
---|
| 1039 | needed_buffer *= (float)to->rate/(float)from->rate; |
---|
| 1040 | |
---|
[2100] | 1041 | ROAR_DBG("roar_conv2(*): needed_buffer=%u, bufsize=%u", needed_buffer, bufsize); |
---|
[2098] | 1042 | |
---|
[4110] | 1043 | // check if we have enogth RAM to convert |
---|
[2094] | 1044 | if ( needed_buffer > bufsize ) |
---|
| 1045 | return -1; |
---|
[4111] | 1046 | #endif |
---|
[2094] | 1047 | |
---|
[2098] | 1048 | if ( from->rate != to->rate || from->channels != to->channels ) |
---|
| 1049 | need_signed = 1; |
---|
| 1050 | |
---|
[2100] | 1051 | ROAR_DBG("roar_conv2(*): need_signed=%i", need_signed); |
---|
[2098] | 1052 | |
---|
[2096] | 1053 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[2100] | 1054 | ROAR_DBG("roar_conv2(*): doing bo input conv"); |
---|
[2096] | 1055 | if ( roar_conv_endian(out, cin, samples, |
---|
| 1056 | ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 1057 | return -1; |
---|
| 1058 | } |
---|
| 1059 | cin = out; |
---|
| 1060 | } |
---|
| 1061 | |
---|
| 1062 | if ( to->bits > from->bits ) { |
---|
[2100] | 1063 | ROAR_DBG("roar_conv2(*): bits: %i->%i", from->bits, to->bits); |
---|
[2096] | 1064 | if ( roar_conv_bits(out, cin, samples, from->bits, to->bits) == -1 ) |
---|
| 1065 | return -1; |
---|
| 1066 | |
---|
| 1067 | cin = out; |
---|
| 1068 | cinfo.bits = to->bits; |
---|
| 1069 | } |
---|
| 1070 | |
---|
[2098] | 1071 | if ( need_signed && ! ROAR_CODEC_IS_SIGNED(from->codec) ) { |
---|
[2100] | 1072 | ROAR_DBG("roar_conv2(*): sign: unsigned->signed"); |
---|
[2098] | 1073 | if ( roar_conv_signedness(out, cin, samples, |
---|
| 1074 | ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), |
---|
| 1075 | cinfo.bits) == -1 ) |
---|
| 1076 | return -1; |
---|
| 1077 | |
---|
| 1078 | cin = out; |
---|
| 1079 | cinfo.codec = ROAR_CODEC_PCM_S_LE; // just a signed PCM, which is of no intrest |
---|
| 1080 | } |
---|
| 1081 | |
---|
[2096] | 1082 | if ( to->channels > from->channels ) { |
---|
[2100] | 1083 | ROAR_DBG("roar_conv2(*): channels: %i->%i", from->channels, to->channels); |
---|
[2748] | 1084 | if ( roar_conv_chans(out, cin, samples, from->channels, to->channels, cinfo.bits) == -1 ) |
---|
[2096] | 1085 | return -1; |
---|
| 1086 | |
---|
| 1087 | cin = out; |
---|
[4115] | 1088 | samples = (samples * to->channels) / cinfo.channels; |
---|
[2096] | 1089 | cinfo.channels = to->channels; |
---|
| 1090 | } |
---|
| 1091 | |
---|
[2103] | 1092 | //--// |
---|
| 1093 | if ( from->rate != to->rate ) { |
---|
[4115] | 1094 | outsamples = bufsize/(cinfo.bits/8); |
---|
| 1095 | |
---|
| 1096 | if ( roar_conv_rate2(out, cin, samples, outsamples, cinfo.bits, cinfo.channels) == -1 ) |
---|
[2103] | 1097 | return -1; |
---|
| 1098 | |
---|
| 1099 | cin = out; |
---|
[4115] | 1100 | samples = outsamples; |
---|
[2103] | 1101 | cinfo.rate = to->rate; |
---|
| 1102 | } |
---|
| 1103 | |
---|
[2098] | 1104 | if ( cinfo.channels != to->channels ) { |
---|
[2100] | 1105 | ROAR_DBG("roar_conv2(*): channels: %i->%i", cinfo.channels, to->channels); |
---|
[2098] | 1106 | if ( roar_conv_chans(out, cin, samples, cinfo.channels, to->channels, cinfo.bits) == -1 ) |
---|
| 1107 | return -1; |
---|
| 1108 | |
---|
| 1109 | cin = out; |
---|
[4115] | 1110 | samples = (samples * to->channels) / cinfo.channels; |
---|
[2098] | 1111 | cinfo.channels = to->channels; |
---|
| 1112 | } |
---|
| 1113 | |
---|
| 1114 | if ( ROAR_CODEC_IS_SIGNED(cinfo.codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
[2100] | 1115 | ROAR_DBG("roar_conv2(*): sign: ?(%i)->?(%i)", ROAR_CODEC_IS_SIGNED(cinfo.codec), ROAR_CODEC_IS_SIGNED(to->codec)); |
---|
[2097] | 1116 | if ( roar_conv_signedness(out, cin, samples, |
---|
[2098] | 1117 | ROAR_CODEC_IS_SIGNED(cinfo.codec), ROAR_CODEC_IS_SIGNED(to->codec), |
---|
[2097] | 1118 | cinfo.bits) == -1 ) |
---|
| 1119 | return -1; |
---|
| 1120 | |
---|
| 1121 | cin = out; |
---|
| 1122 | cinfo.codec = to->codec; |
---|
| 1123 | } |
---|
[2096] | 1124 | |
---|
| 1125 | if ( cinfo.bits != to->bits ) { |
---|
[2100] | 1126 | ROAR_DBG("roar_conv2(*): bits: %i->%i", cinfo.bits, to->bits); |
---|
[2096] | 1127 | if ( roar_conv_bits(out, cin, samples, cinfo.bits, to->bits) == -1 ) |
---|
| 1128 | return -1; |
---|
| 1129 | |
---|
| 1130 | cin = out; |
---|
| 1131 | cinfo.bits = to->bits; |
---|
| 1132 | } |
---|
| 1133 | |
---|
| 1134 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[2100] | 1135 | ROAR_DBG("roar_conv2(*): doing bo output conv"); |
---|
[2096] | 1136 | if ( roar_conv_endian(out, cin, samples, |
---|
| 1137 | ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 1138 | return -1; |
---|
| 1139 | } |
---|
| 1140 | cin = out; |
---|
| 1141 | } |
---|
| 1142 | |
---|
[2100] | 1143 | ROAR_DBG("roar_conv2(*) = 0"); |
---|
[2096] | 1144 | return 0; |
---|
[2094] | 1145 | } |
---|
[383] | 1146 | |
---|
| 1147 | int roar_conv_poly4_16 (int16_t * out, int16_t * in, size_t olen, size_t ilen) { |
---|
[386] | 1148 | return roar_conv_poly4_16s(out, in, olen, ilen, (float)ilen/olen); |
---|
| 1149 | } |
---|
| 1150 | |
---|
| 1151 | int roar_conv_poly4_16s (int16_t * out, int16_t * in, size_t olen, size_t ilen, float step) { |
---|
[383] | 1152 | float poly[4]; |
---|
| 1153 | float data[4]; |
---|
| 1154 | float t = 0; |
---|
| 1155 | int16_t * ci = in; |
---|
| 1156 | int io, ii = 0; |
---|
| 1157 | int i; |
---|
| 1158 | |
---|
[386] | 1159 | printf("step=%f\n", step); |
---|
| 1160 | |
---|
[383] | 1161 | // we can not make a poly4 with less than 4 points ;) |
---|
| 1162 | if ( ilen < 4 ) |
---|
| 1163 | return -1; |
---|
| 1164 | |
---|
| 1165 | for (i = 0; i < 4; i++) |
---|
| 1166 | data[i] = ci[i]; |
---|
| 1167 | roar_math_mkpoly_4x4(poly, data); |
---|
| 1168 | /* |
---|
| 1169 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
---|
| 1170 | data[0], data[1], data[2], data[3], |
---|
| 1171 | poly[0], poly[1], poly[2], poly[3] |
---|
| 1172 | ); |
---|
| 1173 | */ |
---|
| 1174 | |
---|
| 1175 | //0 1 2 3 |
---|
| 1176 | |
---|
| 1177 | for (io = 0; io < olen; io++) { |
---|
| 1178 | // printf("t=%f\n", t); |
---|
| 1179 | out[io] = roar_math_cvpoly_4x4(poly, t); |
---|
| 1180 | t += step; |
---|
| 1181 | if ( t > 2 ) { // we need a new ploynome |
---|
| 1182 | // printf("t > 2, need new data\n"); |
---|
| 1183 | if ( (ii + 4) < ilen ) { // else: end of block. |
---|
| 1184 | t -= 1; |
---|
| 1185 | // printf("new data: ii=%i\n", ii); |
---|
| 1186 | ii++; |
---|
| 1187 | ci++; |
---|
| 1188 | for (i = 0; i < 4; i++) |
---|
| 1189 | data[i] = ci[i]; |
---|
| 1190 | roar_math_mkpoly_4x4(poly, data); |
---|
| 1191 | /* |
---|
| 1192 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
---|
| 1193 | data[0], data[1], data[2], data[3], |
---|
| 1194 | poly[0], poly[1], poly[2], poly[3] |
---|
| 1195 | ); |
---|
| 1196 | */ |
---|
| 1197 | } |
---|
| 1198 | } |
---|
| 1199 | } |
---|
| 1200 | |
---|
[386] | 1201 | printf("io=%i\n", io); |
---|
| 1202 | |
---|
[383] | 1203 | return 0; |
---|
| 1204 | } |
---|
| 1205 | |
---|
[0] | 1206 | //ll |
---|
[4111] | 1207 | /***********************************/ |
---|
| 1208 | // ilen and olen are in samples, not frames. |
---|
| 1209 | int roar_conv_poly3_16 (int16_t * out, int16_t * in, size_t olen, size_t ilen, int channels) { |
---|
| 1210 | float ratio = (float)olen / (float)ilen; |
---|
| 1211 | int16_t *ip; |
---|
| 1212 | int c, x; |
---|
[4113] | 1213 | float pos_in; |
---|
| 1214 | float poly[3]; |
---|
| 1215 | float y[3]; |
---|
| 1216 | float x_val; |
---|
[4114] | 1217 | int32_t temp; |
---|
[4111] | 1218 | |
---|
| 1219 | /* Can't create poly out of less than 3 samples in each channel. */ |
---|
| 1220 | if ( ilen < 3 * channels ) |
---|
| 1221 | return -1; |
---|
| 1222 | |
---|
| 1223 | ip = roar_mm_malloc(ilen * sizeof(int16_t)); |
---|
| 1224 | if ( ip == NULL ) |
---|
| 1225 | return -1; |
---|
| 1226 | |
---|
| 1227 | memcpy(ip, in, ilen * sizeof(int16_t)); |
---|
| 1228 | |
---|
[4114] | 1229 | olen /= channels; |
---|
| 1230 | |
---|
| 1231 | for (x = 0; x < olen; x++) { |
---|
| 1232 | for (c = 0; c < channels; c++) { |
---|
[4113] | 1233 | pos_in = (float)x / ratio; |
---|
[4111] | 1234 | |
---|
| 1235 | if ( (int)pos_in == 0 ) { |
---|
[4112] | 1236 | y[0] = ip[0 * channels + c]; |
---|
| 1237 | y[1] = ip[1 * channels + c]; |
---|
[4111] | 1238 | y[2] = ip[2 * channels + c]; |
---|
| 1239 | x_val = pos_in; |
---|
[4114] | 1240 | roar_math_mkpoly_3x3(poly, y); |
---|
[4111] | 1241 | } else if ( (int)pos_in + 1 >= ilen/channels ) { |
---|
| 1242 | /* If we're at the end of the block, we will need to interpolate against a value that is not yet known. |
---|
| 1243 | * We will assume this value, by linearly extrapolating the two preceding values. From causual testing, this is not audible. */ |
---|
| 1244 | y[0] = ip[((int)pos_in - 1) * channels + c]; |
---|
[4112] | 1245 | y[1] = ip[((int)pos_in ) * channels + c]; |
---|
[4114] | 1246 | |
---|
| 1247 | // we create a 2x2 poly here and set the 3rd coefficient to zero to build a 3x3 poly |
---|
| 1248 | roar_math_mkpoly_2x2(poly, y); |
---|
| 1249 | poly[2] = 0; |
---|
[4111] | 1250 | x_val = pos_in - (int)pos_in + 1.0; |
---|
| 1251 | } else { |
---|
| 1252 | y[0] = ip[((int)pos_in - 1) * channels + c]; |
---|
[4112] | 1253 | y[1] = ip[((int)pos_in ) * channels + c]; |
---|
[4111] | 1254 | y[2] = ip[((int)pos_in + 1) * channels + c]; |
---|
| 1255 | x_val = pos_in - (int)pos_in + 1.0; |
---|
[4114] | 1256 | roar_math_mkpoly_3x3(poly, y); |
---|
[4111] | 1257 | } |
---|
| 1258 | |
---|
| 1259 | |
---|
[4114] | 1260 | temp = (float)(poly[2]*x_val*x_val + poly[1]*x_val + poly[0] + 0.5); |
---|
[4111] | 1261 | /* temp could be out of bounds, so need to check this */ |
---|
[4112] | 1262 | if (temp > 0x7FFE ) { |
---|
| 1263 | out[x * channels + c] = 0x7FFE; |
---|
[4114] | 1264 | } else if (temp < -0x7FFF) { |
---|
| 1265 | out[x * channels + c] = -0x7FFF; |
---|
[4112] | 1266 | } else { |
---|
[4111] | 1267 | out[x * channels + c] = (int16_t)temp; |
---|
[4112] | 1268 | } |
---|
[4111] | 1269 | } |
---|
| 1270 | } |
---|
[4114] | 1271 | |
---|
[4111] | 1272 | roar_mm_free(ip); |
---|
| 1273 | return 0; |
---|
| 1274 | } |
---|