[4173] | 1 | //vs.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
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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, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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| 23 | * |
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| 24 | * NOTE for everyone want's to change something and send patches: |
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| 25 | * read README and HACKING! There a addition information on |
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| 26 | * the license of this document you need to read before you send |
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| 27 | * any patches. |
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| 28 | * |
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| 29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 30 | * or libpulse*: |
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| 31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 32 | * and are therefore GPL. Because of this it may be illigal to use |
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| 33 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 34 | */ |
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| 35 | |
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| 36 | #include "libroar.h" |
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| 37 | |
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[4174] | 38 | #define FLAG_NONE 0x0000 |
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| 39 | #define FLAG_STREAM 0x0001 |
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[4175] | 40 | #define FLAG_NONBLOCK 0x0002 |
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[4174] | 41 | |
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[4178] | 42 | #define _seterr(x) do { if ( error != NULL ) *error = (x); } while(0) |
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[4174] | 43 | |
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| 44 | struct roar_vs { |
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| 45 | int flags; |
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| 46 | struct roar_connection con_store; |
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| 47 | struct roar_connection * con; |
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| 48 | struct roar_stream stream; |
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| 49 | struct roar_vio_calls vio; |
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| 50 | }; |
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| 51 | |
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| 52 | const char * roar_vs_strerr(int error) { |
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| 53 | const struct { |
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| 54 | int err; |
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| 55 | const char * msg; |
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| 56 | } msgs[] = { |
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[4181] | 57 | {ROAR_ERROR_NONE, "No error"}, |
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| 58 | {ROAR_ERROR_PERM, "Operation not permitted"}, |
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| 59 | {ROAR_ERROR_NOENT, "No such object, file or directory"}, |
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| 60 | {ROAR_ERROR_BADMSG, "Bad message"}, |
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| 61 | {ROAR_ERROR_BUSY, "Device or resource busy"}, |
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| 62 | {ROAR_ERROR_CONNREFUSED, "Connection refused"}, |
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| 63 | {ROAR_ERROR_NOSYS, "Function not implemented"}, |
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| 64 | {ROAR_ERROR_NOTSUP, "Operation not supported"}, |
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| 65 | {ROAR_ERROR_PIPE, "Broken pipe"}, |
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| 66 | {ROAR_ERROR_PROTO, "Protocol error"}, |
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| 67 | {ROAR_ERROR_RANGE, "Result too large or parameter out of range"}, |
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| 68 | {ROAR_ERROR_MSGSIZE, "Message too long"}, |
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| 69 | {ROAR_ERROR_NOMEM, "Not enough space"}, |
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| 70 | {ROAR_ERROR_INVAL, "Invalid argument"}, |
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[4174] | 71 | {-1, NULL} |
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| 72 | }; |
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| 73 | int i; |
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| 74 | |
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| 75 | for (i = 0; msgs[i].msg != NULL; i++) |
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| 76 | if ( msgs[i].err == error ) |
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| 77 | return msgs[i].msg; |
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| 78 | |
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| 79 | return "(unknown)"; |
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| 80 | } |
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| 81 | |
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| 82 | static roar_vs_t * roar_vs_init(int * error) { |
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| 83 | roar_vs_t * vss = roar_mm_malloc(sizeof(roar_vs_t)); |
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| 84 | |
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| 85 | if ( vss == NULL ) { |
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| 86 | _seterr(ROAR_ERROR_NOMEM); |
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| 87 | return NULL; |
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| 88 | } |
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| 89 | |
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| 90 | memset(vss, 0, sizeof(roar_vs_t)); |
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| 91 | |
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| 92 | return vss; |
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| 93 | } |
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| 94 | |
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| 95 | roar_vs_t * roar_vs_new_from_con(struct roar_connection * con, int * error) { |
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| 96 | roar_vs_t * vss = roar_vs_init(error); |
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| 97 | |
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| 98 | if ( vss == NULL ) |
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| 99 | return NULL; |
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| 100 | |
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| 101 | vss->con = con; |
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| 102 | |
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| 103 | return vss; |
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| 104 | } |
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| 105 | |
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| 106 | roar_vs_t * roar_vs_new(const char * server, const char * name, int * error) { |
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| 107 | roar_vs_t * vss = roar_vs_init(error); |
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| 108 | int ret; |
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| 109 | |
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| 110 | if ( vss == NULL ) |
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| 111 | return NULL; |
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| 112 | |
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| 113 | vss->con = &(vss->con_store); |
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| 114 | |
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| 115 | ret = roar_simple_connect(vss->con, (char*)server, (char*)name); |
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| 116 | |
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| 117 | if ( ret == -1 ) { |
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| 118 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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| 119 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 120 | return NULL; |
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| 121 | } |
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| 122 | |
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| 123 | return vss; |
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| 124 | } |
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| 125 | |
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| 126 | int roar_vs_stream(roar_vs_t * vss, const struct roar_audio_info * info, int dir, int * error) { |
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| 127 | int ret; |
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| 128 | |
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| 129 | if ( vss->flags & FLAG_STREAM ) { |
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| 130 | _seterr(ROAR_ERROR_INVAL); |
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| 131 | return -1; |
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| 132 | } |
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| 133 | |
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| 134 | ret = roar_vio_simple_new_stream_obj(&(vss->vio), vss->con, &(vss->stream), |
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| 135 | info->rate, info->channels, info->bits, info->codec, |
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| 136 | dir |
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| 137 | ); |
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| 138 | |
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| 139 | if ( ret == -1 ) { |
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| 140 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 141 | return -1; |
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| 142 | } |
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| 143 | |
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| 144 | vss->flags |= FLAG_STREAM; |
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| 145 | |
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| 146 | return 0; |
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| 147 | } |
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| 148 | |
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| 149 | roar_vs_t * roar_vs_new_simple(const char * server, const char * name, int rate, int channels, int codec, int bits, int dir, int * error) { |
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| 150 | roar_vs_t * vss = roar_vs_new(server, name, error); |
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| 151 | struct roar_audio_info info; |
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| 152 | int ret; |
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| 153 | |
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| 154 | if (vss == NULL) |
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| 155 | return NULL; |
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| 156 | |
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| 157 | memset(&info, 0, sizeof(info)); |
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| 158 | |
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| 159 | info.rate = rate; |
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| 160 | info.channels = channels; |
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| 161 | info.codec = codec; |
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| 162 | info.bits = bits; |
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| 163 | |
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| 164 | ret = roar_vs_stream(vss, &info, dir, error); |
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| 165 | |
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| 166 | if (ret == -1) { |
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| 167 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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| 168 | return NULL; |
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| 169 | } |
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| 170 | |
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| 171 | return vss; |
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| 172 | } |
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| 173 | |
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| 174 | int roar_vs_close(roar_vs_t * vss, int killit, int * error) { |
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[4178] | 175 | if ( killit != ROAR_VS_TRUE && killit != ROAR_VS_FALSE ) { |
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| 176 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 177 | return -1; |
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| 178 | } |
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| 179 | |
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[4174] | 180 | if ( vss->flags & FLAG_STREAM ) { |
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[4178] | 181 | if ( killit == ROAR_VS_TRUE ) { |
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[4174] | 182 | roar_kick(vss->con, ROAR_OT_STREAM, roar_stream_get_id(&(vss->stream))); |
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| 183 | } |
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| 184 | |
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| 185 | roar_vio_close(&(vss->vio)); |
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| 186 | } |
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| 187 | |
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| 188 | if ( vss->con == &(vss->con_store) ) { |
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| 189 | roar_disconnect(vss->con); |
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| 190 | } |
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| 191 | |
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| 192 | roar_mm_free(vss); |
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| 193 | return 0; |
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| 194 | } |
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| 195 | |
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| 196 | ssize_t roar_vs_write(roar_vs_t * vss, const void * buf, size_t len, int * error) { |
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| 197 | ssize_t ret; |
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| 198 | |
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| 199 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 200 | _seterr(ROAR_ERROR_INVAL); |
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| 201 | return -1; |
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| 202 | } |
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| 203 | |
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| 204 | ret = roar_vio_write(&(vss->vio), (void*)buf, len); |
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| 205 | |
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| 206 | if ( ret == -1 ) { |
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| 207 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 208 | } |
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| 209 | |
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| 210 | return ret; |
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| 211 | } |
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| 212 | |
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| 213 | ssize_t roar_vs_read (roar_vs_t * vss, void * buf, size_t len, int * error) { |
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| 214 | ssize_t ret; |
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| 215 | |
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| 216 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 217 | _seterr(ROAR_ERROR_INVAL); |
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| 218 | return -1; |
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| 219 | } |
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| 220 | |
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| 221 | ret = roar_vio_read(&(vss->vio), buf, len); |
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| 222 | |
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| 223 | if ( ret == -1 ) { |
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| 224 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 225 | } |
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| 226 | |
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| 227 | return ret; |
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| 228 | } |
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| 229 | |
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[4175] | 230 | int roar_vs_sync (roar_vs_t * vss, int wait, int * error) { |
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| 231 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 232 | _seterr(ROAR_ERROR_INVAL); |
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| 233 | return -1; |
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| 234 | } |
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| 235 | |
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| 236 | if ( wait != ROAR_VS_NOWAIT ) { |
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| 237 | _seterr(ROAR_ERROR_INVAL); |
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| 238 | return -1; |
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| 239 | } |
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| 240 | |
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| 241 | roar_vio_sync(&(vss->vio)); |
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| 242 | |
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| 243 | return 0; |
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| 244 | } |
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| 245 | |
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| 246 | int roar_vs_blocking (roar_vs_t * vss, int val, int * error) { |
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| 247 | int old = -1; |
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| 248 | |
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| 249 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 250 | _seterr(ROAR_ERROR_INVAL); |
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| 251 | return -1; |
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| 252 | } |
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| 253 | |
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| 254 | old = vss->flags & FLAG_NONBLOCK ? ROAR_VS_FALSE : ROAR_VS_TRUE; |
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| 255 | |
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| 256 | switch (val) { |
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| 257 | case ROAR_VS_TRUE: |
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| 258 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_BLOCK) == -1 ) { |
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| 259 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 260 | return -1; |
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| 261 | } |
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| 262 | vss->flags |= FLAG_NONBLOCK; |
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| 263 | vss->flags -= FLAG_NONBLOCK; |
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| 264 | return old; |
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| 265 | break; |
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| 266 | case ROAR_VS_FALSE: |
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| 267 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_NONBLOCK) == -1 ) { |
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| 268 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 269 | return -1; |
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| 270 | } |
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| 271 | vss->flags |= FLAG_NONBLOCK; |
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| 272 | return old; |
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| 273 | break; |
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| 274 | case ROAR_VS_TOGGLE: |
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| 275 | if ( old == ROAR_VS_TRUE ) { |
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| 276 | return roar_vs_blocking(vss, ROAR_VS_FALSE, error); |
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| 277 | } else { |
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| 278 | return roar_vs_blocking(vss, ROAR_VS_TRUE, error); |
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| 279 | } |
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| 280 | break; |
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| 281 | case ROAR_VS_ASK: |
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| 282 | return old; |
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| 283 | break; |
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| 284 | } |
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| 285 | |
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| 286 | _seterr(ROAR_ERROR_INVAL); |
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| 287 | return -1; |
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| 288 | } |
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| 289 | |
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| 290 | ssize_t roar_vs_latency(roar_vs_t * vss, int backend, int * error) { |
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| 291 | _seterr(ROAR_ERROR_NOTSUP); |
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| 292 | return -1; |
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| 293 | } |
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| 294 | |
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| 295 | static int roar_vs_flag(roar_vs_t * vss, int flag, int val, int * error) { |
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| 296 | struct roar_stream_info info; |
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| 297 | int old = -1; |
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| 298 | |
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| 299 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 300 | _seterr(ROAR_ERROR_INVAL); |
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| 301 | return -1; |
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| 302 | } |
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| 303 | |
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| 304 | if ( val != ROAR_VS_ASK ) |
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| 305 | old = roar_vs_flag(vss, flag, ROAR_VS_ASK, error); |
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| 306 | |
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| 307 | switch (val) { |
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| 308 | case ROAR_VS_TRUE: |
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| 309 | case ROAR_VS_FALSE: |
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| 310 | if ( roar_stream_set_flags(vss->con, &(vss->stream), flag, |
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| 311 | val == ROAR_VS_TRUE ? ROAR_SET_FLAG : ROAR_RESET_FLAG) == -1 ) { |
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| 312 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 313 | return -1; |
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| 314 | } |
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| 315 | return old; |
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| 316 | break; |
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| 317 | case ROAR_VS_TOGGLE: |
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| 318 | return roar_vs_flag(vss, flag, old == ROAR_VS_TRUE ? ROAR_VS_FALSE : ROAR_VS_TRUE, error); |
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| 319 | break; |
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| 320 | case ROAR_VS_ASK: |
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| 321 | if ( roar_stream_get_info(vss->con, &(vss->stream), &info) == -1 ) { |
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| 322 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 323 | return -1; |
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| 324 | } |
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| 325 | return info.flags & flag ? ROAR_VS_TRUE : ROAR_VS_FALSE; |
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| 326 | break; |
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| 327 | } |
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| 328 | |
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| 329 | _seterr(ROAR_ERROR_NOTSUP); |
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| 330 | return -1; |
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| 331 | } |
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| 332 | |
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| 333 | int roar_vs_pause(roar_vs_t * vss, int val, int * error) { |
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| 334 | return roar_vs_flag(vss, ROAR_FLAG_PAUSE, val, error); |
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| 335 | } |
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| 336 | |
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| 337 | int roar_vs_mute (roar_vs_t * vss, int val, int * error) { |
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| 338 | return roar_vs_flag(vss, ROAR_FLAG_MUTE, val, error); |
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| 339 | } |
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| 340 | |
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| 341 | static int roar_vs_volume (roar_vs_t * vss, float * c, size_t channels, int * error) { |
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| 342 | struct roar_mixer_settings mixer; |
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| 343 | size_t i; |
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[4179] | 344 | register float s; |
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[4182] | 345 | int oldchannels; |
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| 346 | int handled; |
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[4175] | 347 | |
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| 348 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 349 | _seterr(ROAR_ERROR_INVAL); |
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| 350 | return -1; |
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| 351 | } |
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| 352 | |
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| 353 | if ( channels > ROAR_MAX_CHANNELS ) { |
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| 354 | _seterr(ROAR_ERROR_INVAL); |
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| 355 | return -1; |
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| 356 | } |
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| 357 | |
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[4182] | 358 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &oldchannels) == -1 ) { |
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| 359 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 360 | return -1; |
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| 361 | } |
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| 362 | |
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[4179] | 363 | for (i = 0; i < channels; i++) { |
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| 364 | s = c[i] * 65535.0; |
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| 365 | if ( s > 66190.0 || s < -655.0 ) { |
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| 366 | _seterr(ROAR_ERROR_RANGE); |
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| 367 | return -1; |
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| 368 | } else if ( s > 65535.0 ) { |
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| 369 | s = 65535.0; |
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| 370 | } else if ( s < 0.0 ) { |
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| 371 | s = 0.0; |
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| 372 | } |
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| 373 | mixer.mixer[i] = s; |
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| 374 | } |
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[4175] | 375 | |
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| 376 | mixer.scale = 65535; |
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[4182] | 377 | |
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| 378 | if ( channels != oldchannels ) { |
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| 379 | handled = 0; |
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| 380 | switch (oldchannels) { |
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| 381 | case 1: |
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| 382 | if ( channels == 2 ) { |
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| 383 | mixer.mixer[0] = (mixer.mixer[0] + mixer.mixer[1]) / 2; |
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| 384 | handled = 1; |
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| 385 | } |
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| 386 | break; |
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| 387 | case 2: |
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| 388 | if ( channels == 1 ) { |
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| 389 | mixer.mixer[1] = mixer.mixer[0]; |
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| 390 | handled = 1; |
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| 391 | } |
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| 392 | break; |
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| 393 | case 4: |
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| 394 | if ( channels == 1 ) { |
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| 395 | mixer.mixer[1] = mixer.mixer[0]; |
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| 396 | mixer.mixer[2] = mixer.mixer[0]; |
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| 397 | mixer.mixer[3] = mixer.mixer[0]; |
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| 398 | handled = 1; |
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| 399 | } else if ( channels == 2 ) { |
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| 400 | mixer.mixer[2] = mixer.mixer[0]; |
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| 401 | mixer.mixer[3] = mixer.mixer[1]; |
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| 402 | handled = 1; |
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| 403 | } |
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| 404 | break; |
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| 405 | } |
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| 406 | if ( handled ) { |
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| 407 | channels = oldchannels; |
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| 408 | } else { |
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| 409 | _seterr(ROAR_ERROR_INVAL); |
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| 410 | return -1; |
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| 411 | } |
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| 412 | } |
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[4175] | 413 | |
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| 414 | if ( roar_set_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, channels) == -1 ) { |
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| 415 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 416 | return -1; |
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| 417 | } |
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| 418 | |
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| 419 | return 0; |
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| 420 | } |
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| 421 | |
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| 422 | int roar_vs_volume_mono (roar_vs_t * vss, float c, int * error) { |
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| 423 | return roar_vs_volume(vss, &c, 1, error); |
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| 424 | } |
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| 425 | |
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| 426 | int roar_vs_volume_stereo (roar_vs_t * vss, float l, float r, int * error) { |
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| 427 | float c[2] = {l, r}; |
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| 428 | return roar_vs_volume(vss, c, 2, error); |
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| 429 | } |
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| 430 | |
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| 431 | int roar_vs_volume_get (roar_vs_t * vss, float * l, float * r, int * error) { |
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| 432 | struct roar_mixer_settings mixer; |
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| 433 | int channels; |
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| 434 | |
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| 435 | if ( vss == NULL || l == NULL || r == NULL ) { |
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| 436 | _seterr(ROAR_ERROR_INVAL); |
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| 437 | return -1; |
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| 438 | } |
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| 439 | |
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| 440 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 441 | _seterr(ROAR_ERROR_INVAL); |
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| 442 | return -1; |
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| 443 | } |
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| 444 | |
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| 445 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &channels) == -1 ) { |
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| 446 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 447 | return -1; |
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| 448 | } |
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| 449 | |
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| 450 | if ( channels == 1 ) |
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| 451 | mixer.mixer[1] = mixer.mixer[0]; |
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| 452 | |
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| 453 | *l = mixer.mixer[0] / (float)mixer.scale; |
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| 454 | *r = mixer.mixer[1] / (float)mixer.scale; |
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| 455 | |
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| 456 | return 0; |
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| 457 | } |
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| 458 | |
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[4176] | 459 | int roar_vs_meta (roar_vs_t * vss, struct roar_keyval * kv, size_t len, int * error) { |
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| 460 | struct roar_meta meta; |
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| 461 | size_t i; |
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| 462 | int type; |
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[4180] | 463 | int ret = 0; |
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[4176] | 464 | |
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| 465 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 466 | _seterr(ROAR_ERROR_INVAL); |
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| 467 | return -1; |
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| 468 | } |
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| 469 | |
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| 470 | meta.type = ROAR_META_TYPE_NONE; |
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| 471 | meta.key[0] = 0; |
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| 472 | meta.value = NULL; |
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| 473 | |
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| 474 | // TODO: add error hadnling here. |
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| 475 | |
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[4180] | 476 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_CLEAR, &meta) == -1 ) { |
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| 477 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 478 | ret = -1; |
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| 479 | } |
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[4176] | 480 | |
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| 481 | for (i = 0; i < len; i++) { |
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| 482 | type = roar_meta_inttype(kv[i].key); |
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| 483 | meta.type = type; |
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| 484 | meta.value = kv[i].value; |
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| 485 | |
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[4180] | 486 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_ADD, &meta) == -1 ) { |
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| 487 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 488 | ret = -1; |
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| 489 | } |
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[4176] | 490 | } |
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| 491 | |
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| 492 | meta.type = ROAR_META_TYPE_NONE; |
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| 493 | meta.key[0] = 0; |
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| 494 | meta.value = NULL; |
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[4180] | 495 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_FINALIZE, &meta) == -1 ) { |
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| 496 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 497 | ret = -1; |
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| 498 | } |
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[4176] | 499 | |
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[4180] | 500 | return ret; |
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[4176] | 501 | } |
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[4174] | 502 | |
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[4183] | 503 | struct roar_connection * roar_vs_connection_obj(roar_vs_t * vss, int * error) { |
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| 504 | return vss->con; |
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| 505 | } |
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| 506 | |
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| 507 | struct roar_stream * roar_vs_stream_obj (roar_vs_t * vss, int * error) { |
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| 508 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 509 | _seterr(ROAR_ERROR_INVAL); |
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| 510 | return -1; |
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| 511 | } |
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| 512 | |
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| 513 | return &(vss->stream); |
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| 514 | } |
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| 515 | |
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| 516 | struct roar_vio_calls * roar_vs_vio_obj (roar_vs_t * vss, int * error) { |
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| 517 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 518 | _seterr(ROAR_ERROR_INVAL); |
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| 519 | return -1; |
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| 520 | } |
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| 521 | |
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| 522 | return &(vss->vio); |
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| 523 | } |
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| 524 | |
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[4173] | 525 | //ll |
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