[3751] | 1 | //driver_portaudio.c: |
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| 2 | |
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| 3 | /* |
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[4708] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2011 |
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[4858] | 5 | * Copyright (C) Hans-Kristian 'maister' Arntzen - 2010-2011 |
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[3751] | 6 | * |
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| 7 | * This file is part of roard a part of RoarAudio, |
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| 8 | * a cross-platform sound system for both, home and professional use. |
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| 9 | * See README for details. |
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| 10 | * |
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| 11 | * This file is free software; you can redistribute it and/or modify |
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| 12 | * it under the terms of the GNU General Public License version 3 |
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| 13 | * as published by the Free Software Foundation. |
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| 14 | * |
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| 15 | * RoarAudio is distributed in the hope that it will be useful, |
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 18 | * GNU General Public License for more details. |
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| 19 | * |
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| 20 | * You should have received a copy of the GNU General Public License |
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| 21 | * along with this software; see the file COPYING. If not, write to |
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| 22 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 23 | * Boston, MA 02110-1301, USA. |
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| 24 | * |
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| 25 | */ |
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| 26 | |
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| 27 | #include "roard.h" |
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| 28 | |
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| 29 | #ifdef _DRIVER_PORTAUDIO_CAN_OPERATE |
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| 30 | |
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| 31 | int driver_portaudio_open(struct roar_vio_calls * inst, char * device, struct roar_audio_info * info, int fh, struct roar_stream_server * sstream) { |
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| 32 | struct driver_portaudio * self; |
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| 33 | PaSampleFormat fmt; |
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| 34 | #ifdef ROAR_HAVE_LIBPABLIO |
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| 35 | long flags = PABLIO_WRITE; |
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[4855] | 36 | #elif defined(ROAR_HAVE_PA19_VERSION_19) |
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[3869] | 37 | PaStreamParameters params; |
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[5134] | 38 | const PaDeviceInfo * dev_info = NULL; |
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[3751] | 39 | #endif |
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[5056] | 40 | PaError err; |
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| 41 | int autoconfig = 0; |
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[3751] | 42 | |
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[4855] | 43 | if ( fh != -1 ) |
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| 44 | return -1; |
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| 45 | |
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[5056] | 46 | if ( sstream != NULL ) { |
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| 47 | autoconfig = streams_get_flag(ROAR_STREAM(sstream)->id, ROAR_FLAG_AUTOCONF); |
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| 48 | } |
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| 49 | |
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[3751] | 50 | switch (info->bits) { |
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| 51 | case 8: |
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| 52 | switch (info->codec) { |
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| 53 | case ROAR_CODEC_PCM_S_LE: |
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| 54 | case ROAR_CODEC_PCM_S_BE: |
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| 55 | case ROAR_CODEC_PCM_S_PDP: |
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| 56 | fmt = paInt8; |
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| 57 | break; |
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| 58 | case ROAR_CODEC_PCM_U_LE: |
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| 59 | case ROAR_CODEC_PCM_U_BE: |
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| 60 | case ROAR_CODEC_PCM_U_PDP: |
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| 61 | fmt = paUInt8; |
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| 62 | break; |
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| 63 | default: |
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[5056] | 64 | if ( autoconfig ) { |
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| 65 | info->codec = ROAR_CODEC_DEFAULT; |
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| 66 | fmt = paInt8; |
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| 67 | } else { |
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| 68 | return -1; |
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| 69 | } |
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[3751] | 70 | break; |
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| 71 | } |
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| 72 | break; |
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| 73 | case 16: |
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[5056] | 74 | if ( info->codec != ROAR_CODEC_DEFAULT ) { |
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| 75 | if ( autoconfig ) { |
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| 76 | info->codec = ROAR_CODEC_DEFAULT; |
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| 77 | } else { |
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| 78 | return -1; |
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| 79 | } |
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| 80 | } |
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[3751] | 81 | fmt = paInt16; |
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| 82 | break; |
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[4857] | 83 | #ifdef paPackedInt24 |
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[3751] | 84 | case 24: |
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[5056] | 85 | if ( info->codec != ROAR_CODEC_DEFAULT ) { |
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| 86 | if ( autoconfig ) { |
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| 87 | info->codec = ROAR_CODEC_DEFAULT; |
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| 88 | } else { |
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| 89 | return -1; |
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| 90 | } |
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| 91 | } |
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[3751] | 92 | fmt = paPackedInt24; |
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| 93 | break; |
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[4857] | 94 | #endif |
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[3751] | 95 | case 32: |
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[5056] | 96 | if ( info->codec != ROAR_CODEC_DEFAULT ) { |
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| 97 | if ( autoconfig ) { |
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| 98 | info->codec = ROAR_CODEC_DEFAULT; |
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| 99 | } else { |
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| 100 | return -1; |
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| 101 | } |
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| 102 | } |
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[3751] | 103 | fmt = paInt32; |
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| 104 | break; |
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| 105 | default: |
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[5056] | 106 | if ( autoconfig ) { |
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| 107 | info->codec = ROAR_CODEC_DEFAULT; |
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| 108 | info->bits = 16; |
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| 109 | fmt = paInt16; |
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| 110 | } else { |
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| 111 | return -1; |
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| 112 | } |
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| 113 | break; |
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[3751] | 114 | } |
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| 115 | |
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| 116 | if ( (self = roar_mm_malloc(sizeof(struct driver_portaudio))) == NULL ) |
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| 117 | return -1; |
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| 118 | |
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| 119 | memset(self, 0, sizeof(struct driver_portaudio)); |
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| 120 | |
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| 121 | memset(inst, 0, sizeof(struct roar_vio_calls)); |
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| 122 | |
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| 123 | inst->inst = self; |
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| 124 | inst->close = driver_portaudio_close; |
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| 125 | inst->write = driver_portaudio_write; |
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[5012] | 126 | inst->nonblock = driver_dummy_nonblock; |
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[3751] | 127 | |
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| 128 | Pa_Initialize(); |
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| 129 | |
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| 130 | #ifdef ROAR_HAVE_LIBPABLIO |
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| 131 | switch (info->channels) { |
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| 132 | case 1: flags |= PABLIO_MONO; break; |
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| 133 | case 2: flags |= PABLIO_STEREO; break; |
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| 134 | default: |
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[5056] | 135 | if ( autoconfig ) { |
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| 136 | info->channels = 2; |
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| 137 | flags |= PABLIO_STEREO; |
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| 138 | } else { |
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| 139 | roar_mm_free(self); |
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| 140 | Pa_Terminate(); |
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| 141 | return -1; |
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| 142 | } |
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[3751] | 143 | } |
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| 144 | |
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[5056] | 145 | err = OpenAudioStream(&(self->ostream), info->rate, fmt, flags); |
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| 146 | |
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| 147 | if ( err != paNoError && autoconfig ) { |
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| 148 | if ( (flags & PABLIO_MONO) == PABLIO_MONO ) { |
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| 149 | flags -= PABLIO_MONO; |
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| 150 | flags |= PABLIO_STEREO; |
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| 151 | info->channels = 2; |
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| 152 | } |
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| 153 | fmt = paInt16; |
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| 154 | info->codec = ROAR_CODEC_DEFAULT; |
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| 155 | info->bits = 16; |
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| 156 | |
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| 157 | err = OpenAudioStream(&(self->ostream), info->rate, fmt, flags); |
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| 158 | } |
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| 159 | |
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| 160 | if ( err != paNoError ) { |
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[3751] | 161 | roar_mm_free(self); |
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| 162 | Pa_Terminate(); |
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| 163 | return -1; |
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| 164 | } |
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| 165 | |
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| 166 | return 0; |
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[4855] | 167 | #elif defined(ROAR_HAVE_PA19_VERSION_19) |
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[5134] | 168 | err = paNoError; |
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| 169 | |
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[3869] | 170 | params.device = Pa_GetDefaultOutputDevice(); |
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| 171 | params.channelCount = info->channels; |
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| 172 | params.sampleFormat = fmt; |
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[5134] | 173 | |
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| 174 | if ( params.device != paNoDevice ) |
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| 175 | dev_info = Pa_GetDeviceInfo(params.device); |
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| 176 | |
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| 177 | if ( dev_info != NULL ) { |
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| 178 | params.suggestedLatency = dev_info->defaultLowOutputLatency; |
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| 179 | } else { |
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| 180 | err = paNoDevice; |
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| 181 | } |
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| 182 | |
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[3869] | 183 | params.hostApiSpecificStreamInfo = NULL; |
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| 184 | |
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| 185 | // TODO: FIXME: use libroar for this. |
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| 186 | self->framesize = info->bits * info->channels / 8; |
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| 187 | |
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| 188 | // Sets up blocking I/O stream. |
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[5134] | 189 | if ( err == paNoError ) { |
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| 190 | err = Pa_OpenStream(&(self->stream), |
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| 191 | NULL, |
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| 192 | ¶ms, |
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| 193 | info->rate, |
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| 194 | 128 /*FIXME:frames*/, |
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| 195 | paClipOff, |
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| 196 | NULL, |
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| 197 | NULL |
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| 198 | ); |
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| 199 | } |
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[3869] | 200 | |
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[5134] | 201 | if ( err != paNoError && err != paNoDevice && autoconfig ) { |
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[5056] | 202 | params.sampleFormat = paInt16; |
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| 203 | params.channelCount = 2; |
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| 204 | info->codec = ROAR_CODEC_DEFAULT; |
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| 205 | info->bits = 16; |
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| 206 | info->channels = 2; |
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| 207 | |
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| 208 | err = Pa_OpenStream(&(self->stream), |
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| 209 | NULL, |
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| 210 | ¶ms, |
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| 211 | info->rate, |
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| 212 | 128 /*FIXME:frames*/, |
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| 213 | paClipOff, |
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| 214 | NULL, |
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| 215 | NULL |
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| 216 | ); |
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| 217 | } |
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| 218 | |
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[3869] | 219 | if ( err != paNoError ) { |
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| 220 | ROAR_ERR("driver_portaudio_open(*): Could not open PortAudio device: \"%s\".", Pa_GetErrorText(err)); |
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| 221 | roar_mm_free(self); |
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| 222 | return -1; |
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| 223 | } |
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| 224 | |
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| 225 | err = Pa_StartStream(self->stream); |
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| 226 | |
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| 227 | if ( err != paNoError ) { |
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| 228 | ROAR_ERR("driver_portaudio_open(*): Could not start stream: \"%s\".", Pa_GetErrorText(err)); |
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| 229 | roar_mm_free(self); |
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| 230 | return -1; |
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| 231 | } |
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| 232 | |
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| 233 | return 0; |
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[3751] | 234 | #else |
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| 235 | return -1; |
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| 236 | #endif |
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| 237 | } |
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| 238 | |
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| 239 | int driver_portaudio_close (struct roar_vio_calls * vio) { |
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| 240 | struct driver_portaudio * self = vio->inst; |
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| 241 | |
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[3869] | 242 | // TODO: cleanup common code. |
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| 243 | |
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[3751] | 244 | #ifdef ROAR_HAVE_LIBPABLIO |
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| 245 | CloseAudioStream(self->ostream); |
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| 246 | |
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| 247 | Pa_Terminate(); |
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| 248 | |
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| 249 | roar_mm_free(self); |
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| 250 | |
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| 251 | return 0; |
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[4855] | 252 | #elif defined(ROAR_HAVE_PA19_VERSION_19) |
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[3869] | 253 | if ( (self != NULL) && (self->stream != NULL) ) { |
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| 254 | Pa_StopStream(self->stream); |
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| 255 | Pa_CloseStream(self->stream); |
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| 256 | } |
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| 257 | |
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| 258 | roar_mm_free(self); |
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| 259 | |
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| 260 | Pa_Terminate(); |
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| 261 | |
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| 262 | return 0; |
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[3751] | 263 | #else |
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| 264 | return -1; |
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| 265 | #endif |
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| 266 | } |
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| 267 | |
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| 268 | ssize_t driver_portaudio_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 269 | struct driver_portaudio * self = vio->inst; |
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[4855] | 270 | #ifdef ROAR_HAVE_PA19_VERSION_19 |
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| 271 | size_t write_frames = count / self->framesize; |
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| 272 | PaError err; |
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| 273 | #endif |
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[3751] | 274 | |
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| 275 | ROAR_DBG("driver_portaudio_write(vio=%p, buf=%p, count=%llu) = ?", vio, buf, (long long unsigned int)count); |
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| 276 | |
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| 277 | #ifdef ROAR_HAVE_LIBPABLIO |
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| 278 | count /= self->ostream->bytesPerFrame; // TODO: FIXME: do not access private members |
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| 279 | ROAR_DBG("driver_portaudio_write(vio=%p, buf=%p, count=%llu) = ? // PABLIO mode", vio, buf, (long long unsigned int)count); |
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| 280 | return WriteAudioStream(self->ostream, buf, count) * self->ostream->bytesPerFrame; |
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[4855] | 281 | #elif defined(ROAR_HAVE_PA19_VERSION_19) |
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[3869] | 282 | |
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| 283 | ROAR_DBG("driver_portaudio_write(vio=%p, buf=%p, size=%llu) = ?", vio, buf, (long long unsigned int)size); |
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| 284 | |
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| 285 | // I'm not 100% sure if you could write arbitrary number of frames to Pa_WriteStream(), but it seems to be backend dependent. |
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| 286 | err = Pa_WriteStream(self->stream, buf, write_frames); |
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| 287 | |
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| 288 | if ( err < 0 && err != paOutputUnderflowed ) |
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| 289 | return -1; |
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| 290 | |
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| 291 | // PA always seems to write requested size, or it will error out. |
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| 292 | return count; |
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[3751] | 293 | #else |
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| 294 | return -1; |
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| 295 | #endif |
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| 296 | } |
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| 297 | |
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| 298 | #endif |
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| 299 | |
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| 300 | //ll |
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