[916] | 1 | //driver_oss.c: |
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| 2 | |
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| 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 roard 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 | * RoarAudio 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 | */ |
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| 24 | |
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| 25 | #include "roard.h" |
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| 26 | #if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS) |
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| 27 | |
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[919] | 28 | #define er() close(fh); return -1 |
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| 29 | |
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[930] | 30 | int driver_oss_open(struct roar_vio_calls * inst, char * device, struct roar_audio_info * info, int fh) { |
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[919] | 31 | int tmp; |
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[942] | 32 | int ctmp; |
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| 33 | char * es; |
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[919] | 34 | |
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[924] | 35 | #ifdef ROAR_DEFAULT_OSS_DEV |
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[919] | 36 | if ( device == NULL ) |
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| 37 | device = ROAR_DEFAULT_OSS_DEV; |
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[924] | 38 | #endif |
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| 39 | |
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| 40 | if ( device == NULL ) { |
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| 41 | ROAR_ERR("driver_oss_open(*): no default device found, you need to specify one manuelly"); |
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| 42 | return -1; |
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| 43 | } |
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[919] | 44 | |
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| 45 | roar_vio_init_calls(inst); |
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[1138] | 46 | inst->sync = driver_oss_sync; |
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[1151] | 47 | inst->ctl = driver_oss_ctl; |
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[919] | 48 | |
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[930] | 49 | if ( fh == -1 ) { |
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| 50 | if ( (fh = open(device, O_WRONLY, 0644)) == -1 ) { |
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| 51 | ROAR_ERR("driver_oss_open(*): Can not open OSS device: %s: %s", device, strerror(errno)); |
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| 52 | return -1; |
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| 53 | } |
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[919] | 54 | } |
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| 55 | |
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| 56 | roar_vio_set_fh(inst, fh); |
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| 57 | |
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[945] | 58 | |
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| 59 | |
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| 60 | #ifdef SNDCTL_DSP_CHANNELS |
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| 61 | tmp = info->channels; |
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| 62 | |
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| 63 | if ( ioctl(fh, SNDCTL_DSP_CHANNELS, &tmp) == -1 ) { |
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| 64 | ROAR_ERR("driver_oss_open(*): can not set number of channels"); |
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| 65 | er(); |
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| 66 | } |
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| 67 | |
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| 68 | if ( tmp != info->channels ) { |
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| 69 | ROAR_ERR("driver_oss_open(*): can not set requested numer of channels, OSS suggested %i channels, to use this restart with -oO channels=%i or set codec manuelly via -oO channels=num", tmp, tmp); |
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| 70 | er(); |
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| 71 | } |
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| 72 | #else |
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[919] | 73 | switch (info->channels) { |
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| 74 | case 1: tmp = 0; break; |
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| 75 | case 2: tmp = 1; break; |
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| 76 | default: er(); |
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| 77 | } |
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| 78 | |
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| 79 | if ( ioctl(fh, SNDCTL_DSP_STEREO, &tmp) == -1 ) { |
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[945] | 80 | ROAR_ERR("driver_oss_open(*): can not set number of channels"); |
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[919] | 81 | er(); |
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| 82 | } |
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[945] | 83 | #endif |
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[919] | 84 | |
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[942] | 85 | switch (info->codec) { |
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| 86 | case ROAR_CODEC_PCM_S_LE: |
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| 87 | switch (info->bits) { |
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| 88 | case 8: tmp = AFMT_S8; break; |
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| 89 | case 16: tmp = AFMT_S16_LE; break; |
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| 90 | // case 24: tmp = AFMT_S24_PACKED; break; |
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| 91 | #ifdef AFMT_S32_LE |
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| 92 | case 32: tmp = AFMT_S32_LE; break; |
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| 93 | #endif |
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| 94 | default: er(); |
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| 95 | } |
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| 96 | break; |
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| 97 | case ROAR_CODEC_PCM_S_BE: |
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| 98 | switch (info->bits) { |
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| 99 | case 8: tmp = AFMT_S8; break; |
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| 100 | case 16: tmp = AFMT_S16_BE; break; |
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| 101 | // case 24: tmp = AFMT_S24_PACKED; break; |
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| 102 | #ifdef AFMT_S32_BE |
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| 103 | case 32: tmp = AFMT_S32_BE; break; |
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| 104 | #endif |
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| 105 | default: er(); |
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| 106 | } |
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| 107 | break; |
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| 108 | case ROAR_CODEC_PCM_U_LE: |
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| 109 | switch (info->bits) { |
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| 110 | case 8: tmp = AFMT_U8; break; |
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| 111 | case 16: tmp = AFMT_U16_LE; break; |
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| 112 | default: er(); |
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[919] | 113 | } |
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| 114 | break; |
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[942] | 115 | case ROAR_CODEC_PCM_U_BE: |
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| 116 | switch (info->bits) { |
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| 117 | case 8: tmp = AFMT_U8; break; |
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| 118 | case 16: tmp = AFMT_U16_BE; break; |
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| 119 | default: er(); |
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| 120 | } |
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| 121 | case ROAR_CODEC_ALAW: |
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| 122 | tmp = AFMT_A_LAW; |
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| 123 | break; |
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| 124 | case ROAR_CODEC_MULAW: |
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| 125 | tmp = AFMT_MU_LAW; |
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| 126 | break; |
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| 127 | #ifdef AFMT_VORBIS |
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| 128 | case ROAR_CODEC_OGG_VORBIS: |
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| 129 | tmp = AFMT_VORBIS; |
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| 130 | break; |
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| 131 | #endif |
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| 132 | default: |
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| 133 | er(); |
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| 134 | break; |
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| 135 | } |
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| 136 | |
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| 137 | ctmp = tmp; |
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[946] | 138 | #ifdef SNDCTL_DSP_SETFMT |
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| 139 | if ( ioctl(fh, SNDCTL_DSP_SETFMT, &tmp) == -1 ) { |
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| 140 | #else |
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[942] | 141 | if ( ioctl(fh, SNDCTL_DSP_SAMPLESIZE, &tmp) == -1 ) { |
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[946] | 142 | #endif |
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[942] | 143 | ROAR_ERR("driver_oss_open(*): can not set sample format"); |
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| 144 | er(); |
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[919] | 145 | } |
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| 146 | |
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[942] | 147 | if ( tmp != ctmp ) { |
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| 148 | es = NULL; |
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| 149 | switch (tmp) { |
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| 150 | case AFMT_S8 : es = "bits=8,codec=pcm"; break; |
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| 151 | case AFMT_U8 : es = "bits=8,codec=pcm_u_le"; break; |
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| 152 | case AFMT_S16_LE: es = "bits=16,codec=pcm_s_le"; break; |
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| 153 | case AFMT_S16_BE: es = "bits=16,codec=pcm_s_be"; break; |
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| 154 | case AFMT_U16_LE: es = "bits=16,codec=pcm_u_le"; break; |
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| 155 | case AFMT_U16_BE: es = "bits=16,codec=pcm_u_be"; break; |
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| 156 | #ifdef AFMT_S32_LE |
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| 157 | case AFMT_S32_LE: es = "bits=32,codec=pcm_s_le"; break; |
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| 158 | #endif |
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| 159 | #ifdef AFMT_S32_BE |
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| 160 | case AFMT_S32_BE: es = "bits=32,codec=pcm_s_be"; break; |
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| 161 | #endif |
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| 162 | case AFMT_A_LAW : es = "codec=alaw"; break; |
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| 163 | case AFMT_MU_LAW: es = "codec=mulaw"; break; |
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| 164 | #ifdef AFMT_VORBIS |
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| 165 | case AFMT_VORBIS: es = "codec=ogg_vorbis"; break; |
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| 166 | #endif |
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| 167 | } |
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| 168 | |
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| 169 | if ( es != NULL ) { |
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[1138] | 170 | ROAR_ERR("driver_oss_open(*): can not set requested codec, OSS retruned another codec than requested, to use this restart with -oO %s or set codec manuelly via -oO codec=somecodec", es); |
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[942] | 171 | } else { |
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| 172 | ROAR_ERR("driver_oss_open(*): can not set requested codec, set codec manuelly via -oO codec=somecodec"); |
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| 173 | } |
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[919] | 174 | er(); |
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| 175 | } |
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| 176 | |
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| 177 | tmp = info->rate; |
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| 178 | |
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| 179 | if ( ioctl(fh, SNDCTL_DSP_SPEED, &tmp) == -1 ) { |
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[942] | 180 | ROAR_ERR("driver_oss_open(*): can not set sample rate"); |
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[919] | 181 | er(); |
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| 182 | } |
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| 183 | |
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| 184 | if ( tmp < info->rate * 0.98 || tmp > info->rate * 1.02 ) { |
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[942] | 185 | ROAR_ERR("driver_oss_open(*): sample rate out of acceptable accuracy"); |
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[919] | 186 | er(); |
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| 187 | } |
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| 188 | |
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[1209] | 189 | |
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| 190 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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| 191 | tmp = 4 << 16 | 11; // 4 fragements of 2048 Bytes. |
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| 192 | if ( ioctl(fh, SNDCTL_DSP_SETFRAGMENT, &tmp) == -1 ) { |
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| 193 | ROAR_WARN("driver_oss_open(*): Can not set fragment size, sorry :("); |
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| 194 | } |
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| 195 | #endif |
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| 196 | |
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[935] | 197 | ROAR_DBG("driver_oss_open(*): OSS devices opened :)"); |
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[934] | 198 | |
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[919] | 199 | return 0; |
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[917] | 200 | } |
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| 201 | |
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| 202 | int driver_oss_close(DRIVER_USERDATA_T inst) { |
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[919] | 203 | return close(roar_vio_get_fh((struct roar_vio_calls *)inst)); |
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[917] | 204 | } |
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| 205 | |
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[1138] | 206 | int driver_oss_sync(struct roar_vio_calls * vio) { |
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| 207 | #ifdef SNDCTL_DSP_SYNC |
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| 208 | return ioctl(roar_vio_get_fh(vio), SNDCTL_DSP_SYNC, NULL); |
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| 209 | #else |
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| 210 | return 0; |
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| 211 | #endif |
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| 212 | } |
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[916] | 213 | |
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[1151] | 214 | int driver_oss_ctl(struct roar_vio_calls * vio, int cmd, void * data) { |
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[1184] | 215 | #ifdef SNDCTL_DSP_GETODELAY |
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[1151] | 216 | int d; |
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| 217 | |
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| 218 | if ( vio == NULL ) |
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| 219 | return -1; |
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| 220 | |
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| 221 | if ( cmd != ROAR_VIO_CTL_GET_DELAY ) |
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| 222 | return -1; |
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| 223 | |
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| 224 | if ( ioctl(roar_vio_get_fh(vio), SNDCTL_DSP_GETODELAY, &d) == -1 ) |
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| 225 | return -1; |
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| 226 | |
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[1152] | 227 | ROAR_DBG("driver_oss_ctl(*): delay=%i byte", d); |
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[1151] | 228 | |
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| 229 | *(uint_least32_t *)data = d; |
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| 230 | |
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| 231 | return 0; |
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[1184] | 232 | #else |
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| 233 | return -1; |
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| 234 | #endif |
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[1151] | 235 | } |
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| 236 | |
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[916] | 237 | #endif |
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| 238 | //ll |
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