| 1 | //driver_ao.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 | #ifdef ROAR_HAVE_LIBAO |
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| 27 | |
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| 28 | int driver_ao_open(DRIVER_USERDATA_T * inst, char * device, struct roar_audio_info * info) { |
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| 29 | ao_device * aodevice; |
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| 30 | ao_sample_format format; |
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| 31 | int driver; |
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| 32 | |
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| 33 | ao_initialize(); |
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| 34 | |
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| 35 | if ( device == NULL ) { |
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| 36 | driver = ao_default_driver_id(); |
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| 37 | } else { |
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| 38 | if ( (driver = ao_driver_id(device)) == -1 ) { |
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| 39 | ROAR_ERR("Can not open audio device via libao's driver '%s'", device); |
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| 40 | return -1; |
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| 41 | } |
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| 42 | } |
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| 43 | |
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| 44 | format.bits = info->bits; |
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| 45 | format.channels = info->channels; |
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| 46 | format.rate = info->rate; |
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| 47 | format.byte_format = AO_FMT_NATIVE; |
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| 48 | |
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| 49 | aodevice = ao_open_live(driver, &format, NULL /* no options */); |
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| 50 | |
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| 51 | if ( aodevice == NULL ) { |
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| 52 | ROAR_ERR("Can not open audio device via libao."); |
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| 53 | return -1; |
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| 54 | } |
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| 55 | |
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| 56 | *((ao_device**)inst) = aodevice; |
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| 57 | |
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| 58 | return 0; |
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| 59 | } |
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| 60 | |
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| 61 | int driver_ao_close(DRIVER_USERDATA_T inst) { |
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| 62 | |
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| 63 | ao_close((ao_device*)inst); |
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| 64 | |
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| 65 | ao_shutdown(); |
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| 66 | |
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| 67 | return -1; |
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| 68 | } |
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| 69 | |
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| 70 | int driver_ao_pause(DRIVER_USERDATA_T inst, int newstate) { |
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| 71 | return -1; |
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| 72 | } |
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| 73 | |
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| 74 | int driver_ao_write(DRIVER_USERDATA_T inst, char * buf, int len) { |
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| 75 | return ao_play((ao_device*)inst, buf, len); |
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| 76 | } |
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| 77 | |
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| 78 | int driver_ao_read(DRIVER_USERDATA_T inst, char * buf, int len) { |
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| 79 | return -1; |
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| 80 | } |
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| 81 | |
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| 82 | int driver_ao_flush(DRIVER_USERDATA_T inst) { |
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| 83 | return 0; |
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| 84 | } |
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| 85 | |
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| 86 | #endif |
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| 87 | //ll |
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