[0] | 1 | //convert.c: |
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| 2 | |
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[690] | 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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| 5 | * |
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| 6 | * This file is part of libroar a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * libroar is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | * NOTE for everyone want's to change something and send patches: |
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| 24 | * read README and HACKING! There a addition information on |
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| 25 | * the license of this document you need to read before you send |
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| 26 | * any patches. |
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| 27 | * |
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| 28 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 29 | * or libpulse*: |
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| 30 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 31 | * and are therefore GPL. Because of this it may be illigal to use |
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| 32 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 33 | */ |
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| 34 | |
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[1367] | 35 | #include "libroardsp.h" |
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[1064] | 36 | //#define free(p) {ROAR_WARN("free(%p) = ?", (p)); free((p)); ROAR_WARN("free(%p): OK", (p));} |
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[0] | 37 | |
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| 38 | int roar_conv_bits (void * out, void * in, int samples, int from, int to) { |
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[845] | 39 | int format; |
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| 40 | |
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[0] | 41 | if ( from == to ) { |
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| 42 | if ( in == out ) |
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| 43 | return 0; |
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| 44 | |
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| 45 | memcpy(out, in, samples * from / 8); |
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| 46 | return 0; |
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| 47 | } |
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| 48 | |
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[845] | 49 | format = ((from / 8) << 4) + (to / 8); |
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[0] | 50 | |
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[845] | 51 | switch (format) { |
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[849] | 52 | case 0x12: return roar_conv_bits_8to16( out, in, samples); |
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| 53 | case 0x14: return roar_conv_bits_8to32( out, in, samples); |
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| 54 | case 0x21: return roar_conv_bits_16to8( out, in, samples); |
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[845] | 55 | case 0x24: return roar_conv_bits_16to32(out, in, samples); |
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[2501] | 56 | case 0x34: return roar_conv_bits_24to32(out, in, samples); |
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[849] | 57 | case 0x41: return roar_conv_bits_32to8( out, in, samples); |
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[845] | 58 | case 0x42: return roar_conv_bits_32to16(out, in, samples); |
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| 59 | default: |
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| 60 | errno = ENOSYS; |
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| 61 | return -1; |
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| 62 | } |
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[0] | 63 | |
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| 64 | return -1; |
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| 65 | } |
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| 66 | |
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| 67 | int roar_conv_bits_8to16 (void * out, void * in, int samples) { |
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| 68 | char * ip = (char *)in; |
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| 69 | int16_t * op = (int16_t*)out; |
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| 70 | int i; |
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| 71 | |
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| 72 | for (i = samples - 1; i >= 0; i--) |
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| 73 | op[i] = ip[i] << 8; |
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| 74 | |
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| 75 | return 0; |
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| 76 | } |
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| 77 | |
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[845] | 78 | int roar_conv_bits_8to32 (void * out, void * in, int samples) { |
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| 79 | char * ip = (char *)in; |
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| 80 | int32_t * op = (int32_t*)out; |
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| 81 | int i; |
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| 82 | |
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| 83 | for (i = samples - 1; i >= 0; i--) |
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[1458] | 84 | op[i] = (int32_t) ip[i] << 24; |
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[845] | 85 | |
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| 86 | return 0; |
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| 87 | } |
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| 88 | |
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[0] | 89 | int roar_conv_bits_16to8 (void * out, void * in, int samples) { |
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| 90 | int16_t * ip = (int16_t*)in; |
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| 91 | char * op = (char *)out; |
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| 92 | int i; |
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| 93 | |
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[624] | 94 | ROAR_DBG("roar_conv_bits_16to8(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 95 | |
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[0] | 96 | for (i = 0; i < samples; i++) |
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| 97 | op[i] = ip[i] >> 8; |
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| 98 | |
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| 99 | return 0; |
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| 100 | } |
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| 101 | |
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[845] | 102 | int roar_conv_bits_16to32 (void * out, void * in, int samples) { |
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| 103 | int16_t * ip = (int16_t*)in; |
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| 104 | int32_t * op = (int32_t*)out; |
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| 105 | int i; |
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| 106 | |
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| 107 | for (i = samples - 1; i >= 0; i--) |
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[1458] | 108 | op[i] = (int32_t) ip[i] << 16; |
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[845] | 109 | |
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| 110 | return 0; |
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| 111 | } |
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| 112 | |
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[2501] | 113 | int roar_conv_bits_24to32 (void * out, void * in, int samples) { |
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| 114 | uint8_t * ip = (uint8_t*)in; |
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| 115 | int32_t * op = (int32_t*)out; |
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| 116 | int i; |
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| 117 | union { |
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| 118 | int32_t i; |
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| 119 | uint8_t c[4]; |
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| 120 | } t; |
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| 121 | |
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| 122 | ROAR_DBG("roar_conv_bits_24to32(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 123 | |
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| 124 | #if (BYTE_ORDER == BIG_ENDIAN) || (BYTE_ORDER == LITTLE_ENDIAN) |
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| 125 | t.i = 0; |
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| 126 | #else |
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| 127 | ROAR_DBG("roar_conv_bits_24to32(out=%p, in=%p, samples=%i) = -1", out, in, samples); |
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| 128 | return -1; |
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| 129 | #endif |
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| 130 | |
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| 131 | samples--; |
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| 132 | ip += 3 * samples; |
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| 133 | |
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| 134 | for (i = samples; i >= 0; i--) { |
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| 135 | #if BYTE_ORDER == BIG_ENDIAN |
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| 136 | t.c[0] = *(ip--); |
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| 137 | t.c[1] = *(ip--); |
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| 138 | t.c[2] = *(ip--); |
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| 139 | #elif BYTE_ORDER == LITTLE_ENDIAN |
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| 140 | t.c[2] = *(ip--); |
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| 141 | t.c[3] = *(ip--); |
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| 142 | t.c[1] = *(ip--); |
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| 143 | #endif |
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| 144 | ROAR_DBG("roar_conv_bits_24to32(*): i=%i, t.i=0x%.8X", i, t.i); |
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| 145 | op[i] = t.i; |
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| 146 | } |
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| 147 | |
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| 148 | ROAR_DBG("roar_conv_bits_24to32(out=%p, in=%p, samples=%i) = 0", out, in, samples); |
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| 149 | return 0; |
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| 150 | } |
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| 151 | |
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[845] | 152 | int roar_conv_bits_32to8 (void * out, void * in, int samples) { |
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| 153 | int32_t * ip = (int32_t*)in; |
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| 154 | char * op = (char *)out; |
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| 155 | int i; |
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| 156 | |
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| 157 | for (i = 0; i < samples; i++) |
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| 158 | op[i] = ip[i] >> 24; |
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| 159 | |
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| 160 | return 0; |
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| 161 | } |
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| 162 | |
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| 163 | int roar_conv_bits_32to16 (void * out, void * in, int samples) { |
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| 164 | int32_t * ip = (int32_t*)in; |
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| 165 | int16_t * op = (int16_t*)out; |
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| 166 | int i; |
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| 167 | |
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| 168 | for (i = 0; i < samples; i++) |
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| 169 | op[i] = ip[i] >> 16; |
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| 170 | |
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| 171 | return 0; |
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| 172 | } |
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[0] | 173 | |
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| 174 | int roar_conv_chans (void * out, void * in, int samples, int from, int to, int bits) { |
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[850] | 175 | if ( from == to ) { |
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| 176 | if ( in == out ) |
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| 177 | return 0; |
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| 178 | |
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| 179 | memcpy(out, in, samples * from * bits / 8); |
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| 180 | return 0; |
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| 181 | } |
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| 182 | |
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| 183 | switch (bits) { |
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| 184 | case 8: |
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| 185 | switch (from) { |
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| 186 | case 1: |
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| 187 | switch (to) { |
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| 188 | case 2: return roar_conv_chans_1to28(out, in, samples); |
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| 189 | default: return roar_conv_chans_1ton8(out, in, samples, to); |
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| 190 | } |
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| 191 | break; |
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| 192 | case 2: |
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| 193 | switch (to) { |
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| 194 | case 1: return roar_conv_chans_2to18(out, in, samples); |
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| 195 | default: return -1; |
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| 196 | } |
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| 197 | break; |
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| 198 | default: |
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| 199 | switch (to) { |
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| 200 | case 1: return roar_conv_chans_nto18(out, in, samples, from); |
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| 201 | default: return -1; |
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| 202 | } |
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| 203 | } |
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| 204 | break; |
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| 205 | case 16: |
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| 206 | switch (from) { |
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| 207 | case 1: |
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| 208 | switch (to) { |
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| 209 | case 2: return roar_conv_chans_1to216(out, in, samples); |
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| 210 | default: return roar_conv_chans_1ton16(out, in, samples, to); |
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| 211 | } |
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| 212 | break; |
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| 213 | case 2: |
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| 214 | switch (to) { |
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| 215 | case 1: return roar_conv_chans_2to116(out, in, samples); |
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[2741] | 216 | case 3: return roar_conv_chans_2to316(out, in, samples); |
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[2742] | 217 | case 4: return roar_conv_chans_2to416(out, in, samples); |
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| 218 | case 5: return roar_conv_chans_2to516(out, in, samples); |
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| 219 | case 6: return roar_conv_chans_2to616(out, in, samples); |
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[850] | 220 | default: return -1; |
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| 221 | } |
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| 222 | break; |
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[2750] | 223 | case 4: |
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| 224 | switch (to) { |
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| 225 | case 1: return roar_conv_chans_nto116(out, in, samples, 4); |
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| 226 | case 2: return roar_conv_chans_4to216(out, in, samples); |
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| 227 | default: return -1; |
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| 228 | } |
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| 229 | break; |
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[850] | 230 | default: |
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| 231 | switch (to) { |
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| 232 | case 1: return roar_conv_chans_nto116(out, in, samples, from); |
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| 233 | default: return -1; |
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| 234 | } |
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| 235 | } |
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| 236 | break; |
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| 237 | default: return -1; |
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[0] | 238 | } |
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| 239 | |
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| 240 | return -1; |
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| 241 | } |
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| 242 | |
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| 243 | int roar_conv_chans_1ton8 (void * out, void * in, int samples, int to) { |
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| 244 | char * ip = (char*) in, * op = (char*) out; |
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| 245 | int i; |
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| 246 | int c; |
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| 247 | |
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| 248 | for (i = samples - 1; i >= 0; i--) |
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| 249 | for (c = to - 1; c >= 0; c--) |
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| 250 | op[i*to + c] = ip[i]; |
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| 251 | |
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| 252 | return 0; |
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| 253 | } |
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| 254 | |
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[850] | 255 | int roar_conv_chans_1to28 (void * out, void * in, int samples) { |
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| 256 | char * ip = (char*) in, * op = (char*) out; |
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[852] | 257 | int i, h; |
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[850] | 258 | |
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[852] | 259 | samples--; |
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[850] | 260 | |
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[852] | 261 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 262 | op[i + 0] = ip[h]; |
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| 263 | op[i + 1] = ip[h]; |
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[850] | 264 | } |
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| 265 | |
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| 266 | return 0; |
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| 267 | } |
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| 268 | |
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[0] | 269 | int roar_conv_chans_1ton16 (void * out, void * in, int samples, int to) { |
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| 270 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 271 | int i; |
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| 272 | int c; |
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| 273 | |
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| 274 | for (i = samples - 1; i >= 0; i--) |
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| 275 | for (c = to - 1; c >= 0; c--) |
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| 276 | op[i*to + c] = ip[i]; |
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| 277 | |
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| 278 | return 0; |
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| 279 | } |
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| 280 | |
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[850] | 281 | int roar_conv_chans_1to216 (void * out, void * in, int samples) { |
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| 282 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 283 | int i, h; |
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[850] | 284 | |
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[852] | 285 | samples--; |
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[850] | 286 | |
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[852] | 287 | for (i = (h = samples) * 2; i >= 0; i -= 2, h--) { |
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| 288 | op[i + 0] = ip[h]; |
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| 289 | op[i + 1] = ip[h]; |
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[850] | 290 | } |
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| 291 | |
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| 292 | return 0; |
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| 293 | } |
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| 294 | |
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[626] | 295 | int roar_conv_chans_nto18 (void * out, void * in, int samples, int from) { |
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| 296 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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| 297 | int i; |
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| 298 | int c; |
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| 299 | register int s; |
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| 300 | |
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| 301 | samples /= from; |
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| 302 | |
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| 303 | for (i = samples - 1; i >= 0; i--) { |
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| 304 | s = 0; |
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| 305 | |
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| 306 | for (c = 0; c < from; c++) |
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| 307 | s += ip[i*from + c]; |
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| 308 | |
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| 309 | s /= from; |
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| 310 | op[i] = s; |
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| 311 | } |
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| 312 | |
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| 313 | return 0; |
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| 314 | } |
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| 315 | |
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[850] | 316 | int roar_conv_chans_2to18 (void * out, void * in, int samples) { |
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| 317 | int8_t * ip = (int8_t*) in, * op = (int8_t*) out; |
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[852] | 318 | int i, h; |
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[850] | 319 | |
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| 320 | samples -= 2; |
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| 321 | |
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[852] | 322 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) |
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| 323 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[850] | 324 | |
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| 325 | return 0; |
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| 326 | } |
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| 327 | |
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[624] | 328 | int roar_conv_chans_nto116 (void * out, void * in, int samples, int from) { |
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| 329 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 330 | int i; |
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| 331 | int c; |
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| 332 | register int s; |
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| 333 | |
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| 334 | samples /= from; |
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| 335 | |
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| 336 | for (i = samples - 1; i >= 0; i--) { |
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| 337 | s = 0; |
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| 338 | |
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| 339 | for (c = 0; c < from; c++) |
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| 340 | s += ip[i*from + c]; |
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| 341 | |
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| 342 | s /= from; |
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| 343 | op[i] = s; |
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| 344 | } |
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| 345 | |
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| 346 | return 0; |
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| 347 | } |
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| 348 | |
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[850] | 349 | int roar_conv_chans_2to116 (void * out, void * in, int samples) { |
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| 350 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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[852] | 351 | int i, h; |
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[850] | 352 | |
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[1064] | 353 | ROAR_DBG("roar_conv_chans_2to116(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
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| 354 | |
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[850] | 355 | samples -= 2; |
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| 356 | |
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[1064] | 357 | for (h = (i = samples) / 2; i >= 0; i -= 2, h--) { |
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| 358 | 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] | 359 | op[h] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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[1064] | 360 | } |
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[850] | 361 | |
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| 362 | return 0; |
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| 363 | } |
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| 364 | |
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[2741] | 365 | int roar_conv_chans_2to38 (void * out, void * in, int samples); |
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| 366 | int roar_conv_chans_2to316 (void * out, void * in, int samples) { |
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| 367 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 368 | int i, h; |
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| 369 | |
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| 370 | samples -= 2; |
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| 371 | |
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| 372 | i = samples; |
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| 373 | h = (samples / 2) * 3; |
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| 374 | |
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| 375 | for (; i >= 0; i -= 2, h -= 3) { |
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| 376 | op[h+0] = ip[i+0]; |
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| 377 | op[h+1] = ip[i+1]; |
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| 378 | op[h+2] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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| 379 | } |
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| 380 | |
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| 381 | return 0; |
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| 382 | } |
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| 383 | |
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| 384 | int roar_conv_chans_2to48 (void * out, void * in, int samples); |
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[2742] | 385 | int roar_conv_chans_2to416 (void * out, void * in, int samples) { |
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| 386 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 387 | int i, h; |
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| 388 | |
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| 389 | samples -= 2; |
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| 390 | |
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| 391 | i = samples; |
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| 392 | h = (samples / 2) * 4; |
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| 393 | |
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[2743] | 394 | for (; i >= 0; i -= 2, h -= 4) { |
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[2742] | 395 | op[h+0] = ip[i+0]; |
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| 396 | op[h+1] = ip[i+1]; |
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| 397 | op[h+2] = ip[i+0]; |
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| 398 | op[h+3] = ip[i+1]; |
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| 399 | } |
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| 400 | |
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| 401 | return 0; |
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| 402 | } |
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| 403 | |
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[2741] | 404 | int roar_conv_chans_2to58 (void * out, void * in, int samples); |
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[2742] | 405 | int roar_conv_chans_2to516 (void * out, void * in, int samples) { |
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| 406 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 407 | int i, h; |
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| 408 | |
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| 409 | samples -= 2; |
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| 410 | |
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| 411 | i = samples; |
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| 412 | h = (samples / 2) * 5; |
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| 413 | |
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[2743] | 414 | for (; i >= 0; i -= 2, h -= 5) { |
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[2742] | 415 | op[h+0] = ip[i+0]; |
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| 416 | op[h+1] = ip[i+1]; |
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| 417 | op[h+2] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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| 418 | op[h+3] = ip[i+0]; |
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| 419 | op[h+4] = ip[i+1]; |
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| 420 | } |
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| 421 | |
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| 422 | return 0; |
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| 423 | } |
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[2741] | 424 | int roar_conv_chans_2to68 (void * out, void * in, int samples); |
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[2742] | 425 | int roar_conv_chans_2to616 (void * out, void * in, int samples) { |
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| 426 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
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| 427 | int i, h; |
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| 428 | |
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| 429 | samples -= 2; |
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| 430 | |
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| 431 | i = samples; |
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[2743] | 432 | h = (samples / 2) * 6; |
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[2742] | 433 | |
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[2743] | 434 | for (; i >= 0; i -= 2, h -= 6) { |
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[2742] | 435 | op[h+0] = ip[i+0]; |
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| 436 | op[h+1] = ip[i+1]; |
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| 437 | op[h+2] = ((int)ip[i + 0] + (int)ip[i + 1]) / 2; |
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| 438 | op[h+3] = op[h+2]; |
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| 439 | op[h+4] = ip[i+0]; |
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| 440 | op[h+5] = ip[i+1]; |
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| 441 | } |
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| 442 | |
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| 443 | return 0; |
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| 444 | } |
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[2741] | 445 | |
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[2749] | 446 | int roar_conv_chans_3to28 (void * out, void * in, int samples); |
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| 447 | int roar_conv_chans_3to216 (void * out, void * in, int samples); |
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| 448 | int roar_conv_chans_4to28 (void * out, void * in, int samples); |
---|
[2750] | 449 | int roar_conv_chans_4to216 (void * out, void * in, int samples) { |
---|
| 450 | int16_t * ip = (int16_t*) in, * op = (int16_t*) out; |
---|
| 451 | int i, h; |
---|
| 452 | |
---|
| 453 | samples -= 4; |
---|
| 454 | |
---|
| 455 | for (i = h = 0; i < samples; i += 4, h += 2) { |
---|
| 456 | op[h+0] = ((int)ip[i + 0] + (int)ip[i + 2]) / 2; |
---|
| 457 | op[h+1] = ((int)ip[i + 1] + (int)ip[i + 3]) / 2; |
---|
| 458 | } |
---|
| 459 | |
---|
| 460 | return 0; |
---|
| 461 | } |
---|
| 462 | |
---|
[2749] | 463 | int roar_conv_chans_5to28 (void * out, void * in, int samples); |
---|
| 464 | int roar_conv_chans_5to216 (void * out, void * in, int samples); |
---|
| 465 | int roar_conv_chans_6to28 (void * out, void * in, int samples); |
---|
| 466 | int roar_conv_chans_6to216 (void * out, void * in, int samples); |
---|
| 467 | |
---|
| 468 | |
---|
[2741] | 469 | |
---|
[0] | 470 | int roar_conv_rate (void * out, void * in, int samples, int from, int to, int bits, int channels) { |
---|
[2386] | 471 | #ifdef ROAR_HAVE_LIBSAMPLERATE |
---|
| 472 | return roar_conv_rate_SRC(out, in, samples, from, to, bits, channels); |
---|
| 473 | #else |
---|
[0] | 474 | if ( bits == 8 ) |
---|
| 475 | return roar_conv_rate_8(out, in, samples, from, to, channels); |
---|
| 476 | |
---|
| 477 | if ( bits == 16 ) |
---|
| 478 | return roar_conv_rate_16(out, in, samples, from, to, channels); |
---|
| 479 | |
---|
| 480 | return -1; |
---|
[2386] | 481 | #endif |
---|
[0] | 482 | } |
---|
| 483 | |
---|
| 484 | int roar_conv_rate_8 (void * out, void * in, int samples, int from, int to, int channels) { |
---|
| 485 | return -1; |
---|
| 486 | } |
---|
[33] | 487 | |
---|
[0] | 488 | int roar_conv_rate_16 (void * out, void * in, int samples, int from, int to, int channels) { |
---|
[1061] | 489 | if ( from > to ) { |
---|
| 490 | switch (channels) { |
---|
| 491 | case 1: |
---|
| 492 | return roar_conv_rate_161zoh(out, in, samples, from, to); |
---|
| 493 | case 2: |
---|
[1064] | 494 | return roar_conv_rate_162zoh(out, in, samples, from, to); |
---|
[1061] | 495 | default: |
---|
| 496 | return -1; |
---|
| 497 | } |
---|
| 498 | } else { |
---|
| 499 | if ( channels == 1 ) { |
---|
| 500 | printf("roar_conv_rate_16(): samples=%i -> %i, rate=%i -> %i\n", samples*from/to, samples, from, to); |
---|
| 501 | return roar_conv_poly4_16s((int16_t*) out, (int16_t*) in, samples, samples*from/to, (float)from/to); |
---|
| 502 | // return roar_conv_poly4_16((int16_t*) out, (int16_t*) in, samples*to/from, samples); |
---|
| 503 | } |
---|
[386] | 504 | } |
---|
| 505 | |
---|
[0] | 506 | return -1; |
---|
| 507 | } |
---|
| 508 | |
---|
[1061] | 509 | int roar_conv_rate_161zoh(void * out, void * in, int samples, int from, int to) { |
---|
| 510 | int16_t * ip = in; |
---|
| 511 | int16_t * op = out; |
---|
| 512 | float t = 0; |
---|
| 513 | float step = (float)to/from; |
---|
| 514 | int i; |
---|
| 515 | |
---|
| 516 | for (i= 0; i < samples; i++) { |
---|
| 517 | op[(int)t] = ip[i]; |
---|
| 518 | t += step; |
---|
| 519 | } |
---|
| 520 | |
---|
| 521 | return 0; |
---|
| 522 | } |
---|
| 523 | |
---|
[1064] | 524 | int roar_conv_rate_162zoh(void * out, void * in, int samples, int from, int to) { |
---|
| 525 | int16_t * ip = in; |
---|
| 526 | int16_t * op = out; |
---|
| 527 | float t = 0; |
---|
| 528 | float step = (float)to/from; |
---|
| 529 | int i; |
---|
| 530 | |
---|
| 531 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
---|
| 532 | samples /= 2; |
---|
[2386] | 533 | // samples -= 1; |
---|
[1064] | 534 | ROAR_DBG("roar_conv_rate_162zoh(*): samples=%i", samples); |
---|
| 535 | |
---|
| 536 | for (i= 0; i < samples; i++) { |
---|
| 537 | ROAR_DBG("roar_conv_rate_162zoh(*): t=%f, i=%i // op[%i] = ip[%i]", t, i, 2*(int)t, 2*i); |
---|
| 538 | op[2*(int)t ] = ip[2*i ]; |
---|
| 539 | op[2*(int)t + 1] = ip[2*i + 1]; |
---|
| 540 | t += step; |
---|
| 541 | } |
---|
| 542 | |
---|
| 543 | return 0; |
---|
| 544 | } |
---|
| 545 | |
---|
[2386] | 546 | int roar_conv_rate_SRC (void * out, void * in, int samples, int from, int to, int bits, int channels) { |
---|
| 547 | #ifdef ROAR_HAVE_LIBSAMPLERATE |
---|
| 548 | double radio = (double) to / (double) from; |
---|
| 549 | int outsamples = radio * samples; |
---|
| 550 | float * inf = malloc(samples*sizeof(float)); |
---|
| 551 | float * outf = malloc(outsamples*sizeof(float)); |
---|
| 552 | int i; |
---|
| 553 | SRC_DATA srcdata; |
---|
| 554 | |
---|
| 555 | ROAR_DBG("roar_conv_rate_SRC(*): radio=%lf, samples=%i, outsamples=%i", radio, samples, outsamples); |
---|
| 556 | |
---|
| 557 | if ( inf == NULL ) { |
---|
| 558 | if ( outf != NULL ) |
---|
| 559 | free(outf); |
---|
| 560 | |
---|
| 561 | return -1; |
---|
| 562 | } |
---|
| 563 | |
---|
| 564 | if ( outf == NULL ) { |
---|
| 565 | if ( inf != NULL ) |
---|
| 566 | free(inf); |
---|
| 567 | |
---|
| 568 | return -1; |
---|
| 569 | } |
---|
| 570 | |
---|
| 571 | switch (bits) { |
---|
| 572 | case 8: |
---|
| 573 | for (i = 0; i < samples; i++) |
---|
| 574 | inf[i] = *(((int8_t *)in)+i) / 128.0; |
---|
| 575 | break; |
---|
| 576 | case 16: |
---|
| 577 | for (i = 0; i < samples; i++) |
---|
| 578 | inf[i] = *(((int16_t*)in)+i) / 32768.0; |
---|
| 579 | break; |
---|
| 580 | case 32: |
---|
| 581 | for (i = 0; i < samples; i++) |
---|
| 582 | inf[i] = *(((int32_t*)in)+i) / 2147483648.0; |
---|
| 583 | break; |
---|
| 584 | default: |
---|
| 585 | free(outf); |
---|
| 586 | free(inf); |
---|
| 587 | return -1; |
---|
| 588 | } |
---|
| 589 | |
---|
| 590 | srcdata.data_in = inf; |
---|
| 591 | srcdata.data_out = outf; |
---|
| 592 | srcdata.input_frames = samples/channels; |
---|
| 593 | srcdata.output_frames = outsamples/channels; |
---|
| 594 | srcdata.src_ratio = radio; |
---|
| 595 | |
---|
[2388] | 596 | if ( src_simple(&srcdata, SRC_ZERO_ORDER_HOLD, channels) != 0 ) { |
---|
[2386] | 597 | free(outf); |
---|
| 598 | free(inf); |
---|
| 599 | return -1; |
---|
| 600 | } |
---|
| 601 | |
---|
| 602 | switch (bits) { |
---|
| 603 | case 8: |
---|
[2388] | 604 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 605 | *(((int8_t *)out)+i) = outf[i] * 128.0; |
---|
| 606 | break; |
---|
| 607 | case 16: |
---|
[2388] | 608 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 609 | *(((int16_t*)out)+i) = outf[i] * 32768.0; |
---|
| 610 | break; |
---|
| 611 | case 32: |
---|
[2388] | 612 | for (i = 0; i < outsamples; i++) |
---|
[2386] | 613 | *(((int32_t*)out)+i) = outf[i] * 2147483648.0; |
---|
| 614 | break; |
---|
| 615 | // no errors here, they are handled above |
---|
| 616 | } |
---|
| 617 | |
---|
| 618 | free(outf); |
---|
| 619 | free(inf); |
---|
| 620 | |
---|
| 621 | return 0; |
---|
| 622 | #else |
---|
| 623 | return -1; |
---|
| 624 | #endif |
---|
| 625 | } |
---|
| 626 | |
---|
[875] | 627 | int roar_conv_signedness (void * out, void * in, int samples, int from, int to, int bits) { |
---|
| 628 | |
---|
| 629 | if ( from != to ) { |
---|
| 630 | if ( from && !to ) { |
---|
| 631 | switch (bits) { |
---|
| 632 | case 8: roar_conv_codec_s2u8( out, in, samples); break; |
---|
| 633 | case 16: roar_conv_codec_s2u16(out, in, samples); break; |
---|
| 634 | case 32: roar_conv_codec_s2u32(out, in, samples); break; |
---|
| 635 | default: |
---|
| 636 | errno = ENOSYS; |
---|
| 637 | return -1; |
---|
| 638 | } |
---|
| 639 | } else if ( !from && to ) { |
---|
| 640 | switch (bits) { |
---|
| 641 | case 8: roar_conv_codec_u2s8( out, in, samples); break; |
---|
| 642 | case 16: roar_conv_codec_u2s16(out, in, samples); break; |
---|
| 643 | case 32: roar_conv_codec_u2s32(out, in, samples); break; |
---|
| 644 | default: |
---|
| 645 | errno = ENOSYS; |
---|
| 646 | return -1; |
---|
| 647 | } |
---|
| 648 | } else { |
---|
[876] | 649 | return -1; |
---|
| 650 | } |
---|
| 651 | } else { |
---|
| 652 | if ( out == in ) |
---|
| 653 | return 0; |
---|
[875] | 654 | |
---|
[876] | 655 | memcpy(out, in, samples * bits / 8); |
---|
| 656 | return 0; |
---|
[875] | 657 | } |
---|
| 658 | |
---|
[876] | 659 | return 0; |
---|
[875] | 660 | } |
---|
| 661 | |
---|
[876] | 662 | int roar_conv_codec (void * out, void * in, int samples, int from, int to, int bits) { |
---|
[0] | 663 | int inbo = ROAR_CODEC_BYTE_ORDER(from), outbo = ROAR_CODEC_BYTE_ORDER(to); |
---|
| 664 | int ins = ROAR_CODEC_IS_SIGNED(from), outs = ROAR_CODEC_IS_SIGNED(to); |
---|
[858] | 665 | void * nin = in; |
---|
[0] | 666 | |
---|
[858] | 667 | |
---|
[876] | 668 | ROAR_DBG("roar_conv_codec(out=%p, in=%p, samples=%i, from=%i(%s), to=%i(%s), bits=%i) = ?", |
---|
[869] | 669 | out, in, samples, from, roar_codec2str(from), to, roar_codec2str(to), bits); |
---|
| 670 | |
---|
[875] | 671 | roar_conv_endian(out, in, samples, inbo, outbo, bits); |
---|
| 672 | nin = out; |
---|
[0] | 673 | |
---|
[875] | 674 | return roar_conv_signedness(out, in, samples, ins, outs, bits); |
---|
[0] | 675 | } |
---|
| 676 | |
---|
| 677 | int roar_conv_codec_s2u8 (void * out, void * in, int samples) { |
---|
| 678 | char * ip = in; |
---|
| 679 | unsigned char * op = out; |
---|
| 680 | int i; |
---|
| 681 | |
---|
| 682 | for(i = 0; i < samples; i++) |
---|
| 683 | op[i] = ip[i] + 128; |
---|
| 684 | |
---|
| 685 | return 0; |
---|
| 686 | } |
---|
| 687 | |
---|
[633] | 688 | int roar_conv_codec_s2u16 (void * out, void * in, int samples) { |
---|
| 689 | int16_t * ip = in; |
---|
| 690 | uint16_t * op = out; |
---|
[2795] | 691 | register int_least32_t s; |
---|
[633] | 692 | int i; |
---|
| 693 | |
---|
[2795] | 694 | for(i = 0; i < samples; i++) { |
---|
| 695 | s = ip[i]; |
---|
| 696 | s += 32768; |
---|
| 697 | op[i] = s; |
---|
| 698 | } |
---|
[633] | 699 | |
---|
| 700 | return 0; |
---|
| 701 | } |
---|
[0] | 702 | |
---|
[846] | 703 | int roar_conv_codec_s2u32 (void * out, void * in, int samples) { |
---|
| 704 | int32_t * ip = in; |
---|
| 705 | uint32_t * op = out; |
---|
| 706 | int i; |
---|
| 707 | |
---|
| 708 | for(i = 0; i < samples; i++) |
---|
| 709 | op[i] = ip[i] + 2147483648U; |
---|
| 710 | |
---|
| 711 | return 0; |
---|
| 712 | } |
---|
| 713 | |
---|
| 714 | int roar_conv_codec_u2s8 (void * out, void * in, int samples) { |
---|
| 715 | unsigned char * ip = in; |
---|
| 716 | char * op = out; |
---|
| 717 | int i; |
---|
| 718 | |
---|
| 719 | for(i = 0; i < samples; i++) |
---|
| 720 | op[i] = ip[i] - 128; |
---|
| 721 | |
---|
| 722 | return 0; |
---|
| 723 | } |
---|
| 724 | |
---|
| 725 | int roar_conv_codec_u2s16 (void * out, void * in, int samples) { |
---|
| 726 | uint16_t * ip = in; |
---|
| 727 | int16_t * op = out; |
---|
| 728 | int i; |
---|
| 729 | |
---|
| 730 | for(i = 0; i < samples; i++) |
---|
| 731 | op[i] = ip[i] - 32768; |
---|
| 732 | |
---|
| 733 | return 0; |
---|
| 734 | } |
---|
| 735 | |
---|
| 736 | int roar_conv_codec_u2s32 (void * out, void * in, int samples) { |
---|
| 737 | uint32_t * ip = in; |
---|
| 738 | int32_t * op = out; |
---|
| 739 | int i; |
---|
| 740 | |
---|
| 741 | for(i = 0; i < samples; i++) |
---|
| 742 | op[i] = ip[i] - 2147483648U; |
---|
| 743 | |
---|
| 744 | return 0; |
---|
| 745 | } |
---|
| 746 | |
---|
[875] | 747 | |
---|
| 748 | int roar_conv_endian (void * out, void * in, int samples, int from, int to, int bits) { |
---|
| 749 | |
---|
| 750 | if ( bits == 8 ) { |
---|
| 751 | from = to = ROAR_CODEC_NATIVE_ENDIAN; |
---|
| 752 | |
---|
| 753 | } else if ( bits == 16 ) { |
---|
| 754 | if ( from == ROAR_CODEC_PDP ) |
---|
| 755 | from = ROAR_CODEC_LE; |
---|
| 756 | if ( to == ROAR_CODEC_PDP ) |
---|
| 757 | to = ROAR_CODEC_LE; |
---|
| 758 | } |
---|
| 759 | |
---|
[876] | 760 | ROAR_DBG("roar_conv_endian(out=%p, in=%p, samples=%i, from=%i, to=%i, bits=%i) = ?", out, in, samples, from, to, bits); |
---|
| 761 | |
---|
[875] | 762 | if ( from == to ) { |
---|
| 763 | if ( in != out ) { |
---|
| 764 | memcpy(out, in, samples * bits / 8); |
---|
| 765 | } |
---|
[876] | 766 | return 0; |
---|
| 767 | } else { |
---|
[875] | 768 | if ( bits == 16 ) { |
---|
| 769 | // in this case we can only have LE vs. BE, so, only need to swap: |
---|
[876] | 770 | ROAR_DBG("roar_conv_endian(*): Doing 16 bit byteswap"); |
---|
[875] | 771 | return roar_conv_endian_16(out, in, samples); |
---|
| 772 | } else if ( bits == 24 ) { |
---|
| 773 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
---|
| 774 | return roar_conv_endian_24(out, in, samples); |
---|
| 775 | } else { // what the hell is PDP eddines in 24 bit mode? |
---|
| 776 | return -1; |
---|
| 777 | } |
---|
| 778 | } else if ( bits == 32 ) { |
---|
| 779 | if ( (from == ROAR_CODEC_LE || from == ROAR_CODEC_BE) && (to == ROAR_CODEC_LE || to == ROAR_CODEC_BE) ) { |
---|
| 780 | return roar_conv_endian_32(out, in, samples); |
---|
| 781 | } else { // need to handle 32 PDP eddines here? |
---|
| 782 | return -1; |
---|
| 783 | } |
---|
| 784 | } else { |
---|
| 785 | return -1; |
---|
| 786 | } |
---|
| 787 | } |
---|
| 788 | |
---|
| 789 | return -1; |
---|
| 790 | } |
---|
| 791 | |
---|
| 792 | |
---|
[857] | 793 | int roar_conv_endian_16 (void * out, void * in, int samples) { |
---|
| 794 | char * ip = in; |
---|
| 795 | char * op = out; |
---|
| 796 | register char c; |
---|
| 797 | int i; |
---|
| 798 | |
---|
| 799 | samples *= 2; |
---|
| 800 | |
---|
| 801 | if ( out != in ) { |
---|
[858] | 802 | // printf("out != in\n"); |
---|
[857] | 803 | for(i = 0; i < samples; i += 2) { |
---|
[858] | 804 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
---|
[857] | 805 | op[i ] = ip[i+1]; |
---|
| 806 | op[i+1] = ip[i ]; |
---|
| 807 | } |
---|
| 808 | } else { |
---|
[858] | 809 | // printf("out == in\n"); |
---|
[857] | 810 | for(i = 0; i < samples; i += 2) { |
---|
| 811 | c = ip[i+1]; |
---|
| 812 | op[i+1] = ip[i ]; |
---|
| 813 | op[i ] = c; |
---|
| 814 | } |
---|
| 815 | } |
---|
| 816 | |
---|
| 817 | return 0; |
---|
| 818 | } |
---|
| 819 | |
---|
[859] | 820 | int roar_conv_endian_24 (void * out, void * in, int samples) { |
---|
| 821 | char * ip = in; |
---|
| 822 | char * op = out; |
---|
| 823 | register char c; |
---|
| 824 | int i; |
---|
| 825 | |
---|
| 826 | samples *= 3; |
---|
| 827 | |
---|
| 828 | if ( out != in ) { |
---|
| 829 | // printf("out != in\n"); |
---|
| 830 | for(i = 0; i < samples; i += 3) { |
---|
| 831 | // printf("op[%i] = ip[%i]\nop[%i] = ip[%i]\n", i, i+1, i+1, i); |
---|
| 832 | op[i ] = ip[i+2]; |
---|
| 833 | op[i+2] = ip[i ]; |
---|
| 834 | } |
---|
| 835 | } else { |
---|
| 836 | // printf("out == in\n"); |
---|
| 837 | for(i = 0; i < samples; i += 3) { |
---|
| 838 | c = ip[i+2]; |
---|
| 839 | op[i+2] = ip[i ]; |
---|
| 840 | op[i ] = c; |
---|
| 841 | } |
---|
| 842 | } |
---|
| 843 | |
---|
| 844 | return 0; |
---|
| 845 | } |
---|
| 846 | |
---|
[869] | 847 | int roar_conv_endian_32 (void * out, void * in, int samples) { |
---|
| 848 | int32_t * ip = in; |
---|
| 849 | int32_t * op = out; |
---|
| 850 | union { |
---|
| 851 | int32_t val; |
---|
| 852 | char data[4]; |
---|
| 853 | } c, h; |
---|
| 854 | int i; |
---|
| 855 | |
---|
| 856 | // may the holly optimizer save our souls! |
---|
| 857 | |
---|
| 858 | ROAR_DBG("roar_conv_endian_32(out=%p, in=%p, samples=%i) = ?", out, in, samples); |
---|
| 859 | |
---|
| 860 | for (i = 0; i < samples; i++) { |
---|
| 861 | c.val = ip[i]; |
---|
| 862 | h.data[0] = c.data[3]; |
---|
| 863 | h.data[1] = c.data[2]; |
---|
| 864 | h.data[2] = c.data[1]; |
---|
| 865 | h.data[3] = c.data[0]; |
---|
| 866 | op[i] = h.val; |
---|
| 867 | } |
---|
| 868 | |
---|
| 869 | return 0; |
---|
| 870 | } |
---|
| 871 | |
---|
[0] | 872 | int roar_conv (void * out, void * in, int samples, struct roar_audio_info * from, struct roar_audio_info * to) { |
---|
| 873 | void * ip = in; |
---|
[1060] | 874 | void * real_out = NULL; |
---|
[1059] | 875 | size_t from_size, to_size; |
---|
[0] | 876 | |
---|
| 877 | // TODO: decide how to work around both in and out beeing to small to hold all |
---|
| 878 | // data between the steps. |
---|
| 879 | // for the moment: guess out >= in |
---|
| 880 | |
---|
[1060] | 881 | from_size = (from->bits * samples) / 8; |
---|
[1064] | 882 | to_size = ( to->bits * samples * to->rate * to->channels) / (8 * from->rate * from->channels); |
---|
| 883 | |
---|
| 884 | ROAR_DBG("roar_conv(*): size: %i->%i", from_size, to_size); |
---|
[1059] | 885 | |
---|
| 886 | if ( to_size < from_size ) { |
---|
| 887 | real_out = out; |
---|
| 888 | |
---|
| 889 | if ( (out = malloc(from_size)) == NULL ) |
---|
| 890 | return -1; |
---|
[1060] | 891 | |
---|
| 892 | ROAR_DBG("roar_conv(*): malloc(%i)=%p", (int)from_size, out); |
---|
[1059] | 893 | } |
---|
| 894 | |
---|
[876] | 895 | ROAR_DBG("roar_conv(*): bo conv: %i->%i(native)", ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN); |
---|
| 896 | |
---|
[875] | 897 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[876] | 898 | ROAR_DBG("roar_conv(*): doing bo input conv"); |
---|
[1059] | 899 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 900 | if ( to_size < from_size ) |
---|
| 901 | free(out); |
---|
[875] | 902 | return -1; |
---|
[1059] | 903 | } else { |
---|
[875] | 904 | ip = out; |
---|
[1059] | 905 | } |
---|
[875] | 906 | } |
---|
| 907 | |
---|
[0] | 908 | if ( from->bits != to->bits ) { |
---|
[1059] | 909 | if ( roar_conv_bits(out, ip, samples, from->bits, to->bits) == -1 ) { |
---|
| 910 | if ( to_size < from_size ) |
---|
| 911 | free(out); |
---|
[0] | 912 | return -1; |
---|
[1059] | 913 | } else { |
---|
[0] | 914 | ip = out; |
---|
[1059] | 915 | } |
---|
[0] | 916 | } |
---|
| 917 | |
---|
[875] | 918 | if ( ROAR_CODEC_IS_SIGNED(from->codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
[1059] | 919 | if ( roar_conv_signedness(out, ip, samples, ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), to->bits) == -1 ) { |
---|
| 920 | if ( to_size < from_size ) |
---|
| 921 | free(out); |
---|
[875] | 922 | return -1; |
---|
[1059] | 923 | } else { |
---|
[875] | 924 | ip = out; |
---|
[1059] | 925 | } |
---|
[875] | 926 | } |
---|
| 927 | |
---|
| 928 | /* |
---|
[852] | 929 | if ( from->codec != to->codec ) { |
---|
[876] | 930 | if ( roar_conv_codec (out, ip, samples, from->codec, to->codec, to->bits) == -1 ) |
---|
[852] | 931 | return -1; |
---|
| 932 | else |
---|
| 933 | ip = out; |
---|
| 934 | } |
---|
[875] | 935 | */ |
---|
[852] | 936 | |
---|
[386] | 937 | if ( from->rate != to->rate ) { |
---|
[1059] | 938 | if ( roar_conv_rate(out, ip, samples, from->rate, to->rate, to->bits, from->channels) == -1 ) { |
---|
[1060] | 939 | ROAR_DBG("roar_conv(*): failed to convert rate %i->%i (%ich%ibits)", from->rate, to->rate, to->bits, from->channels); |
---|
[1064] | 940 | if ( to_size < from_size ) |
---|
| 941 | free(out); |
---|
[0] | 942 | return -1; |
---|
[1059] | 943 | } else { |
---|
[0] | 944 | ip = out; |
---|
[1064] | 945 | samples = (samples * to->rate) / from->rate; |
---|
[1059] | 946 | } |
---|
[0] | 947 | } |
---|
| 948 | |
---|
[386] | 949 | if ( from->channels != to->channels ) { |
---|
[1059] | 950 | if ( roar_conv_chans(out, ip, samples, from->channels, to->channels, to->bits) == -1 ) { |
---|
| 951 | if ( to_size < from_size ) |
---|
| 952 | free(out); |
---|
[0] | 953 | return -1; |
---|
[1059] | 954 | } else { |
---|
[0] | 955 | ip = out; |
---|
[1059] | 956 | } |
---|
[0] | 957 | } |
---|
| 958 | |
---|
[875] | 959 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[1059] | 960 | if ( roar_conv_endian(out, ip, samples, ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 961 | if ( to_size < from_size ) |
---|
| 962 | free(out); |
---|
[875] | 963 | return -1; |
---|
[1059] | 964 | } else { |
---|
[875] | 965 | ip = out; |
---|
[1059] | 966 | } |
---|
| 967 | } |
---|
| 968 | |
---|
| 969 | if ( to_size < from_size ) { |
---|
[1060] | 970 | ROAR_DBG("roar_conv(*): memcpy(%p, %p, %i) = ?", real_out, out, (int)to_size); |
---|
[1059] | 971 | memcpy(real_out, out, to_size); |
---|
| 972 | free(out); |
---|
[1064] | 973 | ROAR_DBG("roar_conv(*): free(%p): OK!", out); |
---|
[875] | 974 | } |
---|
| 975 | |
---|
[0] | 976 | return 0; |
---|
| 977 | } |
---|
| 978 | |
---|
[2094] | 979 | int roar_conv2(void * out, void * in, |
---|
| 980 | size_t inlen, |
---|
| 981 | struct roar_audio_info * from, struct roar_audio_info * to, |
---|
| 982 | size_t bufsize) { |
---|
| 983 | size_t samples; |
---|
| 984 | size_t needed_buffer; |
---|
[2096] | 985 | void * cin = in; |
---|
| 986 | struct roar_audio_info cinfo; |
---|
[2098] | 987 | int need_signed = 0; |
---|
[2096] | 988 | |
---|
| 989 | memcpy(&cinfo, from, sizeof(cinfo)); |
---|
[383] | 990 | |
---|
[2388] | 991 | ROAR_DBG("roar_conv2(out=%p, in=%p, inlen=%lu, from=%p{...}, to=%p{...}, bufsize=%lu", out, in, inlen, from, to, bufsize); |
---|
| 992 | |
---|
[2386] | 993 | /* |
---|
| 994 | if ( in != out ) { |
---|
| 995 | memset(out, 0xA0, bufsize); |
---|
| 996 | } else { |
---|
| 997 | ROAR_WARN("roar_conv2(*): in==out!"); |
---|
[2388] | 998 | memset(out+inlen, 0xA0, bufsize-inlen); |
---|
[2386] | 999 | } |
---|
| 1000 | */ |
---|
| 1001 | |
---|
[2094] | 1002 | // calcumate number of input samples: |
---|
[2099] | 1003 | samples = (inlen * 8) / (from->bits); |
---|
| 1004 | |
---|
[2100] | 1005 | ROAR_DBG("roar_conv2(*): input samples: %i", samples); |
---|
[2094] | 1006 | |
---|
| 1007 | // calculate size per frame |
---|
| 1008 | needed_buffer = ROAR_MAX(from->channels, to->channels) * ROAR_MAX(from->bits, to->bits) / 8; |
---|
| 1009 | |
---|
| 1010 | needed_buffer *= samples; |
---|
[2099] | 1011 | needed_buffer /= from->channels; |
---|
[2094] | 1012 | |
---|
| 1013 | if ( from->rate < to->rate ) |
---|
| 1014 | needed_buffer *= (float)to->rate/(float)from->rate; |
---|
| 1015 | |
---|
[2100] | 1016 | ROAR_DBG("roar_conv2(*): needed_buffer=%u, bufsize=%u", needed_buffer, bufsize); |
---|
[2098] | 1017 | |
---|
[2094] | 1018 | // chjeck if we have enogth RAM to convert |
---|
| 1019 | if ( needed_buffer > bufsize ) |
---|
| 1020 | return -1; |
---|
| 1021 | |
---|
[2098] | 1022 | if ( from->rate != to->rate || from->channels != to->channels ) |
---|
| 1023 | need_signed = 1; |
---|
| 1024 | |
---|
[2100] | 1025 | ROAR_DBG("roar_conv2(*): need_signed=%i", need_signed); |
---|
[2098] | 1026 | |
---|
[2096] | 1027 | if ( ROAR_CODEC_BYTE_ORDER(from->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[2100] | 1028 | ROAR_DBG("roar_conv2(*): doing bo input conv"); |
---|
[2096] | 1029 | if ( roar_conv_endian(out, cin, samples, |
---|
| 1030 | ROAR_CODEC_BYTE_ORDER(from->codec), ROAR_CODEC_NATIVE_ENDIAN, from->bits) == -1 ) { |
---|
| 1031 | return -1; |
---|
| 1032 | } |
---|
| 1033 | cin = out; |
---|
| 1034 | } |
---|
| 1035 | |
---|
| 1036 | if ( to->bits > from->bits ) { |
---|
[2100] | 1037 | ROAR_DBG("roar_conv2(*): bits: %i->%i", from->bits, to->bits); |
---|
[2096] | 1038 | if ( roar_conv_bits(out, cin, samples, from->bits, to->bits) == -1 ) |
---|
| 1039 | return -1; |
---|
| 1040 | |
---|
| 1041 | cin = out; |
---|
| 1042 | cinfo.bits = to->bits; |
---|
| 1043 | } |
---|
| 1044 | |
---|
[2098] | 1045 | if ( need_signed && ! ROAR_CODEC_IS_SIGNED(from->codec) ) { |
---|
[2100] | 1046 | ROAR_DBG("roar_conv2(*): sign: unsigned->signed"); |
---|
[2098] | 1047 | if ( roar_conv_signedness(out, cin, samples, |
---|
| 1048 | ROAR_CODEC_IS_SIGNED(from->codec), ROAR_CODEC_IS_SIGNED(to->codec), |
---|
| 1049 | cinfo.bits) == -1 ) |
---|
| 1050 | return -1; |
---|
| 1051 | |
---|
| 1052 | cin = out; |
---|
| 1053 | cinfo.codec = ROAR_CODEC_PCM_S_LE; // just a signed PCM, which is of no intrest |
---|
| 1054 | } |
---|
| 1055 | |
---|
[2096] | 1056 | if ( to->channels > from->channels ) { |
---|
[2100] | 1057 | ROAR_DBG("roar_conv2(*): channels: %i->%i", from->channels, to->channels); |
---|
[2748] | 1058 | if ( roar_conv_chans(out, cin, samples, from->channels, to->channels, cinfo.bits) == -1 ) |
---|
[2096] | 1059 | return -1; |
---|
| 1060 | |
---|
| 1061 | cin = out; |
---|
| 1062 | cinfo.channels = to->channels; |
---|
| 1063 | } |
---|
| 1064 | |
---|
[2103] | 1065 | //--// |
---|
| 1066 | if ( from->rate != to->rate ) { |
---|
| 1067 | if ( roar_conv_rate(out, cin, samples, from->rate, to->rate, cinfo.bits, cinfo.channels) == -1 ) |
---|
| 1068 | return -1; |
---|
| 1069 | |
---|
| 1070 | cin = out; |
---|
| 1071 | samples = (float)samples * (float)to->rate / (float)from->rate; |
---|
| 1072 | cinfo.rate = to->rate; |
---|
| 1073 | } |
---|
| 1074 | |
---|
[2098] | 1075 | if ( cinfo.channels != to->channels ) { |
---|
[2100] | 1076 | ROAR_DBG("roar_conv2(*): channels: %i->%i", cinfo.channels, to->channels); |
---|
[2098] | 1077 | if ( roar_conv_chans(out, cin, samples, cinfo.channels, to->channels, cinfo.bits) == -1 ) |
---|
| 1078 | return -1; |
---|
| 1079 | |
---|
| 1080 | cin = out; |
---|
| 1081 | cinfo.channels = to->channels; |
---|
| 1082 | } |
---|
| 1083 | |
---|
| 1084 | if ( ROAR_CODEC_IS_SIGNED(cinfo.codec) != ROAR_CODEC_IS_SIGNED(to->codec) ) { |
---|
[2100] | 1085 | ROAR_DBG("roar_conv2(*): sign: ?(%i)->?(%i)", ROAR_CODEC_IS_SIGNED(cinfo.codec), ROAR_CODEC_IS_SIGNED(to->codec)); |
---|
[2097] | 1086 | if ( roar_conv_signedness(out, cin, samples, |
---|
[2098] | 1087 | ROAR_CODEC_IS_SIGNED(cinfo.codec), ROAR_CODEC_IS_SIGNED(to->codec), |
---|
[2097] | 1088 | cinfo.bits) == -1 ) |
---|
| 1089 | return -1; |
---|
| 1090 | |
---|
| 1091 | cin = out; |
---|
| 1092 | cinfo.codec = to->codec; |
---|
| 1093 | } |
---|
[2096] | 1094 | |
---|
| 1095 | if ( cinfo.bits != to->bits ) { |
---|
[2100] | 1096 | ROAR_DBG("roar_conv2(*): bits: %i->%i", cinfo.bits, to->bits); |
---|
[2096] | 1097 | if ( roar_conv_bits(out, cin, samples, cinfo.bits, to->bits) == -1 ) |
---|
| 1098 | return -1; |
---|
| 1099 | |
---|
| 1100 | cin = out; |
---|
| 1101 | cinfo.bits = to->bits; |
---|
| 1102 | } |
---|
| 1103 | |
---|
| 1104 | if ( ROAR_CODEC_BYTE_ORDER(to->codec) != ROAR_CODEC_NATIVE_ENDIAN ) { |
---|
[2100] | 1105 | ROAR_DBG("roar_conv2(*): doing bo output conv"); |
---|
[2096] | 1106 | if ( roar_conv_endian(out, cin, samples, |
---|
| 1107 | ROAR_CODEC_NATIVE_ENDIAN, ROAR_CODEC_BYTE_ORDER(to->codec), to->bits) == -1 ) { |
---|
| 1108 | return -1; |
---|
| 1109 | } |
---|
| 1110 | cin = out; |
---|
| 1111 | } |
---|
| 1112 | |
---|
[2100] | 1113 | ROAR_DBG("roar_conv2(*) = 0"); |
---|
[2096] | 1114 | return 0; |
---|
[2094] | 1115 | } |
---|
[383] | 1116 | |
---|
| 1117 | int roar_conv_poly4_16 (int16_t * out, int16_t * in, size_t olen, size_t ilen) { |
---|
[386] | 1118 | return roar_conv_poly4_16s(out, in, olen, ilen, (float)ilen/olen); |
---|
| 1119 | } |
---|
| 1120 | |
---|
| 1121 | int roar_conv_poly4_16s (int16_t * out, int16_t * in, size_t olen, size_t ilen, float step) { |
---|
[383] | 1122 | float poly[4]; |
---|
| 1123 | float data[4]; |
---|
| 1124 | float t = 0; |
---|
| 1125 | int16_t * ci = in; |
---|
| 1126 | int io, ii = 0; |
---|
| 1127 | int i; |
---|
| 1128 | |
---|
[386] | 1129 | printf("step=%f\n", step); |
---|
| 1130 | |
---|
[383] | 1131 | // we can not make a poly4 with less than 4 points ;) |
---|
| 1132 | if ( ilen < 4 ) |
---|
| 1133 | return -1; |
---|
| 1134 | |
---|
| 1135 | for (i = 0; i < 4; i++) |
---|
| 1136 | data[i] = ci[i]; |
---|
| 1137 | roar_math_mkpoly_4x4(poly, data); |
---|
| 1138 | /* |
---|
| 1139 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
---|
| 1140 | data[0], data[1], data[2], data[3], |
---|
| 1141 | poly[0], poly[1], poly[2], poly[3] |
---|
| 1142 | ); |
---|
| 1143 | */ |
---|
| 1144 | |
---|
| 1145 | //0 1 2 3 |
---|
| 1146 | |
---|
| 1147 | for (io = 0; io < olen; io++) { |
---|
| 1148 | // printf("t=%f\n", t); |
---|
| 1149 | out[io] = roar_math_cvpoly_4x4(poly, t); |
---|
| 1150 | t += step; |
---|
| 1151 | if ( t > 2 ) { // we need a new ploynome |
---|
| 1152 | // printf("t > 2, need new data\n"); |
---|
| 1153 | if ( (ii + 4) < ilen ) { // else: end of block. |
---|
| 1154 | t -= 1; |
---|
| 1155 | // printf("new data: ii=%i\n", ii); |
---|
| 1156 | ii++; |
---|
| 1157 | ci++; |
---|
| 1158 | for (i = 0; i < 4; i++) |
---|
| 1159 | data[i] = ci[i]; |
---|
| 1160 | roar_math_mkpoly_4x4(poly, data); |
---|
| 1161 | /* |
---|
| 1162 | printf("new poly: data[4] = {%f, %f, %f, %f}, poly[4] = {%f, %f, %f, %f}\n", |
---|
| 1163 | data[0], data[1], data[2], data[3], |
---|
| 1164 | poly[0], poly[1], poly[2], poly[3] |
---|
| 1165 | ); |
---|
| 1166 | */ |
---|
| 1167 | } |
---|
| 1168 | } |
---|
| 1169 | } |
---|
| 1170 | |
---|
[386] | 1171 | printf("io=%i\n", io); |
---|
| 1172 | |
---|
[383] | 1173 | return 0; |
---|
| 1174 | } |
---|
| 1175 | |
---|
[0] | 1176 | //ll |
---|