[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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[4206] | 41 | #define FLAG_BUFFERED 0x0004 |
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[4174] | 42 | |
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[4186] | 43 | #define _initerr() do { errno = 0; roar_err_clear(); } while(0) |
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| 44 | #define _seterr(x) do { if ( error != NULL ) *error = (x); } while(0) |
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| 45 | #define _seterrre() do { _seterr(roar_errno); } while(0) |
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| 46 | #define _seterrse() do { roar_err_from_errno(); _seterr(roar_errno); } while(0) |
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[4174] | 47 | |
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| 48 | struct roar_vs { |
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| 49 | int flags; |
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| 50 | struct roar_connection con_store; |
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| 51 | struct roar_connection * con; |
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| 52 | struct roar_stream stream; |
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| 53 | struct roar_vio_calls vio; |
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[4206] | 54 | struct roar_audio_info info; |
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| 55 | size_t readc, writec; |
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| 56 | int mixerid; |
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| 57 | int first_primid; |
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[4174] | 58 | }; |
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| 59 | |
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[4206] | 60 | static int _roar_vs_find_first_prim(roar_vs_t * vss); |
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| 61 | |
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[4174] | 62 | const char * roar_vs_strerr(int error) { |
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| 63 | const struct { |
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| 64 | int err; |
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| 65 | const char * msg; |
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| 66 | } msgs[] = { |
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[4181] | 67 | {ROAR_ERROR_NONE, "No error"}, |
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| 68 | {ROAR_ERROR_PERM, "Operation not permitted"}, |
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| 69 | {ROAR_ERROR_NOENT, "No such object, file or directory"}, |
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| 70 | {ROAR_ERROR_BADMSG, "Bad message"}, |
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| 71 | {ROAR_ERROR_BUSY, "Device or resource busy"}, |
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| 72 | {ROAR_ERROR_CONNREFUSED, "Connection refused"}, |
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| 73 | {ROAR_ERROR_NOSYS, "Function not implemented"}, |
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| 74 | {ROAR_ERROR_NOTSUP, "Operation not supported"}, |
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| 75 | {ROAR_ERROR_PIPE, "Broken pipe"}, |
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| 76 | {ROAR_ERROR_PROTO, "Protocol error"}, |
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| 77 | {ROAR_ERROR_RANGE, "Result too large or parameter out of range"}, |
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| 78 | {ROAR_ERROR_MSGSIZE, "Message too long"}, |
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| 79 | {ROAR_ERROR_NOMEM, "Not enough space"}, |
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| 80 | {ROAR_ERROR_INVAL, "Invalid argument"}, |
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[4174] | 81 | {-1, NULL} |
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| 82 | }; |
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| 83 | int i; |
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| 84 | |
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| 85 | for (i = 0; msgs[i].msg != NULL; i++) |
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| 86 | if ( msgs[i].err == error ) |
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| 87 | return msgs[i].msg; |
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| 88 | |
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| 89 | return "(unknown)"; |
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| 90 | } |
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| 91 | |
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| 92 | static roar_vs_t * roar_vs_init(int * error) { |
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| 93 | roar_vs_t * vss = roar_mm_malloc(sizeof(roar_vs_t)); |
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| 94 | |
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| 95 | if ( vss == NULL ) { |
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[4186] | 96 | _seterrse(); |
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[4174] | 97 | return NULL; |
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| 98 | } |
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| 99 | |
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| 100 | memset(vss, 0, sizeof(roar_vs_t)); |
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| 101 | |
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[4206] | 102 | vss->mixerid = -1; |
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| 103 | vss->first_primid = -1; |
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| 104 | |
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[4174] | 105 | return vss; |
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| 106 | } |
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| 107 | |
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| 108 | roar_vs_t * roar_vs_new_from_con(struct roar_connection * con, int * error) { |
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| 109 | roar_vs_t * vss = roar_vs_init(error); |
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| 110 | |
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| 111 | if ( vss == NULL ) |
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| 112 | return NULL; |
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| 113 | |
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| 114 | vss->con = con; |
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| 115 | |
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| 116 | return vss; |
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| 117 | } |
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| 118 | |
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| 119 | roar_vs_t * roar_vs_new(const char * server, const char * name, int * error) { |
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| 120 | roar_vs_t * vss = roar_vs_init(error); |
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| 121 | int ret; |
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| 122 | |
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| 123 | if ( vss == NULL ) |
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| 124 | return NULL; |
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| 125 | |
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| 126 | vss->con = &(vss->con_store); |
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| 127 | |
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[4186] | 128 | _initerr(); |
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| 129 | |
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[4174] | 130 | ret = roar_simple_connect(vss->con, (char*)server, (char*)name); |
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| 131 | |
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| 132 | if ( ret == -1 ) { |
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| 133 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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[4186] | 134 | _seterrre(); |
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[4174] | 135 | return NULL; |
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| 136 | } |
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| 137 | |
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| 138 | return vss; |
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| 139 | } |
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| 140 | |
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| 141 | int roar_vs_stream(roar_vs_t * vss, const struct roar_audio_info * info, int dir, int * error) { |
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[4206] | 142 | struct roar_stream_info sinfo; |
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[4174] | 143 | int ret; |
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| 144 | |
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| 145 | if ( vss->flags & FLAG_STREAM ) { |
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| 146 | _seterr(ROAR_ERROR_INVAL); |
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| 147 | return -1; |
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| 148 | } |
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| 149 | |
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[4186] | 150 | _initerr(); |
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| 151 | |
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[4206] | 152 | if ( info != &(vss->info) ) |
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| 153 | memcpy(&(vss->info), info, sizeof(struct roar_audio_info)); |
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| 154 | |
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[4174] | 155 | ret = roar_vio_simple_new_stream_obj(&(vss->vio), vss->con, &(vss->stream), |
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| 156 | info->rate, info->channels, info->bits, info->codec, |
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| 157 | dir |
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| 158 | ); |
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| 159 | |
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| 160 | if ( ret == -1 ) { |
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[4186] | 161 | _seterrre(); |
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[4174] | 162 | return -1; |
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| 163 | } |
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| 164 | |
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[4206] | 165 | if ( roar_stream_get_info(vss->con, &(vss->stream), &sinfo) != -1 ) { |
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| 166 | vss->mixerid = sinfo.mixer; |
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| 167 | _roar_vs_find_first_prim(vss); |
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| 168 | } |
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| 169 | |
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[4174] | 170 | vss->flags |= FLAG_STREAM; |
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| 171 | |
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| 172 | return 0; |
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| 173 | } |
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| 174 | |
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| 175 | 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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| 176 | roar_vs_t * vss = roar_vs_new(server, name, error); |
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| 177 | int ret; |
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| 178 | |
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| 179 | if (vss == NULL) |
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| 180 | return NULL; |
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| 181 | |
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[4206] | 182 | memset(&(vss->info), 0, sizeof(vss->info)); |
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[4174] | 183 | |
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[4206] | 184 | vss->info.rate = rate; |
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| 185 | vss->info.channels = channels; |
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| 186 | vss->info.codec = codec; |
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| 187 | vss->info.bits = bits; |
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[4174] | 188 | |
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[4206] | 189 | ret = roar_vs_stream(vss, &(vss->info), dir, error); |
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[4174] | 190 | |
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| 191 | if (ret == -1) { |
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| 192 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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| 193 | return NULL; |
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| 194 | } |
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| 195 | |
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| 196 | return vss; |
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| 197 | } |
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| 198 | |
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| 199 | int roar_vs_close(roar_vs_t * vss, int killit, int * error) { |
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[4178] | 200 | if ( killit != ROAR_VS_TRUE && killit != ROAR_VS_FALSE ) { |
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| 201 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 202 | return -1; |
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| 203 | } |
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| 204 | |
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[4174] | 205 | if ( vss->flags & FLAG_STREAM ) { |
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[4178] | 206 | if ( killit == ROAR_VS_TRUE ) { |
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[4174] | 207 | roar_kick(vss->con, ROAR_OT_STREAM, roar_stream_get_id(&(vss->stream))); |
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| 208 | } |
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| 209 | |
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| 210 | roar_vio_close(&(vss->vio)); |
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| 211 | } |
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| 212 | |
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| 213 | if ( vss->con == &(vss->con_store) ) { |
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| 214 | roar_disconnect(vss->con); |
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| 215 | } |
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| 216 | |
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| 217 | roar_mm_free(vss); |
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| 218 | return 0; |
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| 219 | } |
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| 220 | |
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| 221 | ssize_t roar_vs_write(roar_vs_t * vss, const void * buf, size_t len, int * error) { |
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| 222 | ssize_t ret; |
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| 223 | |
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| 224 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 225 | _seterr(ROAR_ERROR_INVAL); |
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| 226 | return -1; |
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| 227 | } |
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| 228 | |
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[4186] | 229 | _initerr(); |
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| 230 | |
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[4174] | 231 | ret = roar_vio_write(&(vss->vio), (void*)buf, len); |
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| 232 | |
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| 233 | if ( ret == -1 ) { |
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[4199] | 234 | #ifdef EAGAIN |
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| 235 | if ( errno == EAGAIN ) |
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| 236 | return 0; |
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| 237 | #endif |
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| 238 | |
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| 239 | #ifdef EWOULDBLOCK |
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| 240 | if ( errno == EWOULDBLOCK ) |
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| 241 | return 0; |
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| 242 | #endif |
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| 243 | |
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[4186] | 244 | _seterrre(); |
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[4206] | 245 | } else { |
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| 246 | vss->writec += ret; |
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[4174] | 247 | } |
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| 248 | |
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| 249 | return ret; |
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| 250 | } |
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| 251 | |
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| 252 | ssize_t roar_vs_read (roar_vs_t * vss, void * buf, size_t len, int * error) { |
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| 253 | ssize_t ret; |
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| 254 | |
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| 255 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 256 | _seterr(ROAR_ERROR_INVAL); |
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| 257 | return -1; |
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| 258 | } |
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| 259 | |
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[4186] | 260 | _initerr(); |
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| 261 | |
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[4174] | 262 | ret = roar_vio_read(&(vss->vio), buf, len); |
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| 263 | |
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| 264 | if ( ret == -1 ) { |
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[4186] | 265 | _seterrre(); |
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[4206] | 266 | } else { |
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| 267 | vss->readc += ret; |
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[4174] | 268 | } |
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| 269 | |
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| 270 | return ret; |
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| 271 | } |
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| 272 | |
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[4175] | 273 | int roar_vs_sync (roar_vs_t * vss, int wait, int * error) { |
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| 274 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 275 | _seterr(ROAR_ERROR_INVAL); |
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| 276 | return -1; |
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| 277 | } |
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| 278 | |
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| 279 | if ( wait != ROAR_VS_NOWAIT ) { |
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| 280 | _seterr(ROAR_ERROR_INVAL); |
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| 281 | return -1; |
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| 282 | } |
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| 283 | |
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[4186] | 284 | _initerr(); |
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| 285 | |
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| 286 | if ( roar_vio_sync(&(vss->vio)) == -1 ) { |
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| 287 | _seterrre(); |
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| 288 | return -1; |
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| 289 | } |
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[4175] | 290 | |
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| 291 | return 0; |
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| 292 | } |
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| 293 | |
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| 294 | int roar_vs_blocking (roar_vs_t * vss, int val, int * error) { |
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| 295 | int old = -1; |
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| 296 | |
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| 297 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 298 | _seterr(ROAR_ERROR_INVAL); |
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| 299 | return -1; |
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| 300 | } |
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| 301 | |
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| 302 | old = vss->flags & FLAG_NONBLOCK ? ROAR_VS_FALSE : ROAR_VS_TRUE; |
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| 303 | |
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[4186] | 304 | _initerr(); |
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| 305 | |
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[4175] | 306 | switch (val) { |
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| 307 | case ROAR_VS_TRUE: |
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| 308 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_BLOCK) == -1 ) { |
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[4186] | 309 | _seterrre(); |
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[4175] | 310 | return -1; |
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| 311 | } |
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| 312 | vss->flags |= FLAG_NONBLOCK; |
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| 313 | vss->flags -= FLAG_NONBLOCK; |
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| 314 | return old; |
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| 315 | break; |
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| 316 | case ROAR_VS_FALSE: |
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| 317 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_NONBLOCK) == -1 ) { |
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[4186] | 318 | _seterrre(); |
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[4175] | 319 | return -1; |
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| 320 | } |
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| 321 | vss->flags |= FLAG_NONBLOCK; |
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| 322 | return old; |
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| 323 | break; |
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| 324 | case ROAR_VS_TOGGLE: |
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| 325 | if ( old == ROAR_VS_TRUE ) { |
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| 326 | return roar_vs_blocking(vss, ROAR_VS_FALSE, error); |
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| 327 | } else { |
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| 328 | return roar_vs_blocking(vss, ROAR_VS_TRUE, error); |
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| 329 | } |
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| 330 | break; |
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| 331 | case ROAR_VS_ASK: |
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| 332 | return old; |
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| 333 | break; |
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| 334 | } |
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| 335 | |
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| 336 | _seterr(ROAR_ERROR_INVAL); |
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| 337 | return -1; |
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| 338 | } |
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| 339 | |
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[4206] | 340 | static int _roar_vs_find_first_prim(roar_vs_t * vss) { |
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| 341 | struct roar_stream stream; |
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| 342 | struct roar_stream_info info; |
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| 343 | int id[ROAR_STREAMS_MAX]; |
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| 344 | int num; |
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| 345 | int i; |
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| 346 | |
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| 347 | if ( vss->first_primid != -1 ) |
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| 348 | return vss->first_primid; |
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| 349 | |
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| 350 | if ( vss->mixerid == -1 ) |
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| 351 | return -1; |
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| 352 | |
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| 353 | if ( (num = roar_list_streams(vss->con, id, ROAR_STREAMS_MAX)) == -1 ) { |
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| 354 | return -1; |
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| 355 | } |
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| 356 | |
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| 357 | for (i = 0; i < num; i++) { |
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| 358 | if ( roar_get_stream(vss->con, &stream, id[i]) == -1 ) |
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| 359 | continue; |
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| 360 | |
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| 361 | if ( stream.dir != ROAR_DIR_OUTPUT ) |
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| 362 | continue; |
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| 363 | |
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| 364 | if ( roar_stream_get_info(vss->con, &stream, &info) == -1 ) |
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| 365 | continue; |
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| 366 | |
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| 367 | if ( info.mixer == vss->mixerid ) { |
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| 368 | vss->first_primid = id[i]; |
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| 369 | return id[i]; |
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| 370 | } |
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| 371 | } |
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| 372 | |
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| 373 | return -1; |
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| 374 | } |
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| 375 | |
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| 376 | ssize_t roar_vs_position(roar_vs_t * vss, int backend, int * error) { |
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| 377 | struct roar_stream stream; |
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| 378 | struct roar_stream out_stream; |
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| 379 | struct roar_stream_info out_info; |
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| 380 | size_t offset; |
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| 381 | |
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| 382 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 383 | _seterr(ROAR_ERROR_INVAL); |
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| 384 | return -1; |
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| 385 | } |
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| 386 | |
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| 387 | _initerr(); |
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| 388 | |
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| 389 | if ( roar_get_stream(vss->con, &stream, roar_stream_get_id(&(vss->stream))) == -1 ) { |
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| 390 | _seterrre(); |
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| 391 | return -1; |
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| 392 | } |
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| 393 | |
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| 394 | switch (backend) { |
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| 395 | case ROAR_VS_BACKEND_NONE: |
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| 396 | return stream.pos; |
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| 397 | break; |
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| 398 | case ROAR_VS_BACKEND_FIRST: |
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| 399 | // _roar_vs_find_first_prim(vss); |
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| 400 | if ( vss->first_primid == -1 ) { |
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| 401 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 402 | return -1; |
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| 403 | } |
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| 404 | |
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| 405 | roar_stream_new_by_id(&out_stream, vss->first_primid); |
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| 406 | |
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| 407 | if ( roar_stream_get_info(vss->con, &out_stream, &out_info) == -1 ) { |
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| 408 | _seterrre(); |
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| 409 | return -1; |
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| 410 | } |
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| 411 | |
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| 412 | offset = out_info.delay * vss->info.rate; |
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| 413 | offset /= 1000000; |
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| 414 | |
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| 415 | return stream.pos + offset; |
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| 416 | break; |
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| 417 | default: |
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| 418 | _seterr(ROAR_ERROR_NOTSUP); |
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| 419 | return -1; |
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| 420 | break; |
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| 421 | } |
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| 422 | |
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[4186] | 423 | _seterr(ROAR_ERROR_NOSYS); |
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[4175] | 424 | return -1; |
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| 425 | } |
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| 426 | |
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[4206] | 427 | roar_mus_t roar_vs_latency(roar_vs_t * vss, int backend, int * error) { |
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| 428 | ssize_t pos = roar_vs_position(vss, backend, error); |
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| 429 | ssize_t bps; // byte per sample |
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| 430 | size_t lioc; // local IO (byte) counter |
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| 431 | size_t lpos; // local possition |
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| 432 | roar_mus_t lag; |
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| 433 | |
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[4215] | 434 | _initerr(); |
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| 435 | |
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| 436 | if (pos == -1) { |
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| 437 | _seterrre(); |
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| 438 | return 0; |
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| 439 | } |
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[4206] | 440 | |
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| 441 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 442 | _seterr(ROAR_ERROR_INVAL); |
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[4213] | 443 | return 0; |
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[4206] | 444 | } |
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| 445 | |
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| 446 | if ( vss->writec == 0 ) { |
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| 447 | lioc = vss->readc; |
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| 448 | } else { |
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| 449 | lioc = vss->writec; |
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| 450 | } |
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| 451 | |
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| 452 | bps = roar_info2samplesize(&(vss->info)); |
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| 453 | |
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| 454 | if ( bps == -1 ) { |
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| 455 | _seterrre(); |
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[4213] | 456 | return 0; |
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[4206] | 457 | } |
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| 458 | |
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| 459 | lpos = lioc / bps; |
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| 460 | |
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| 461 | lag = (roar_mus_t)lpos - (roar_mus_t)pos; |
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| 462 | |
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| 463 | // we now have the lag in frames |
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| 464 | // return value are ms |
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| 465 | // so we need to multiply with 1s/ms and |
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| 466 | // multiply by 1/rate |
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| 467 | |
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| 468 | lag *= 1000000; // 1s/ms |
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| 469 | lag /= vss->info.rate; |
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| 470 | |
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[4213] | 471 | if ( lag == 0 ) { |
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| 472 | _seterr(ROAR_ERROR_NONE); |
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| 473 | } |
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| 474 | |
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[4206] | 475 | return lag; |
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| 476 | } |
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| 477 | |
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[4175] | 478 | static int roar_vs_flag(roar_vs_t * vss, int flag, int val, int * error) { |
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| 479 | struct roar_stream_info info; |
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| 480 | int old = -1; |
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| 481 | |
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| 482 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 483 | _seterr(ROAR_ERROR_INVAL); |
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| 484 | return -1; |
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| 485 | } |
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| 486 | |
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| 487 | if ( val != ROAR_VS_ASK ) |
---|
| 488 | old = roar_vs_flag(vss, flag, ROAR_VS_ASK, error); |
---|
| 489 | |
---|
[4186] | 490 | _initerr(); |
---|
| 491 | |
---|
[4175] | 492 | switch (val) { |
---|
| 493 | case ROAR_VS_TRUE: |
---|
| 494 | case ROAR_VS_FALSE: |
---|
| 495 | if ( roar_stream_set_flags(vss->con, &(vss->stream), flag, |
---|
| 496 | val == ROAR_VS_TRUE ? ROAR_SET_FLAG : ROAR_RESET_FLAG) == -1 ) { |
---|
[4186] | 497 | _seterrre(); |
---|
[4175] | 498 | return -1; |
---|
| 499 | } |
---|
| 500 | return old; |
---|
| 501 | break; |
---|
| 502 | case ROAR_VS_TOGGLE: |
---|
| 503 | return roar_vs_flag(vss, flag, old == ROAR_VS_TRUE ? ROAR_VS_FALSE : ROAR_VS_TRUE, error); |
---|
| 504 | break; |
---|
| 505 | case ROAR_VS_ASK: |
---|
| 506 | if ( roar_stream_get_info(vss->con, &(vss->stream), &info) == -1 ) { |
---|
[4186] | 507 | _seterrre(); |
---|
[4175] | 508 | return -1; |
---|
| 509 | } |
---|
| 510 | return info.flags & flag ? ROAR_VS_TRUE : ROAR_VS_FALSE; |
---|
| 511 | break; |
---|
| 512 | } |
---|
| 513 | |
---|
[4187] | 514 | _seterr(ROAR_ERROR_INVAL); |
---|
[4175] | 515 | return -1; |
---|
| 516 | } |
---|
| 517 | |
---|
| 518 | int roar_vs_pause(roar_vs_t * vss, int val, int * error) { |
---|
| 519 | return roar_vs_flag(vss, ROAR_FLAG_PAUSE, val, error); |
---|
| 520 | } |
---|
| 521 | |
---|
| 522 | int roar_vs_mute (roar_vs_t * vss, int val, int * error) { |
---|
| 523 | return roar_vs_flag(vss, ROAR_FLAG_MUTE, val, error); |
---|
| 524 | } |
---|
| 525 | |
---|
| 526 | static int roar_vs_volume (roar_vs_t * vss, float * c, size_t channels, int * error) { |
---|
| 527 | struct roar_mixer_settings mixer; |
---|
| 528 | size_t i; |
---|
[4179] | 529 | register float s; |
---|
[4182] | 530 | int oldchannels; |
---|
| 531 | int handled; |
---|
[4175] | 532 | |
---|
| 533 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 534 | _seterr(ROAR_ERROR_INVAL); |
---|
| 535 | return -1; |
---|
| 536 | } |
---|
| 537 | |
---|
| 538 | if ( channels > ROAR_MAX_CHANNELS ) { |
---|
| 539 | _seterr(ROAR_ERROR_INVAL); |
---|
| 540 | return -1; |
---|
| 541 | } |
---|
| 542 | |
---|
[4186] | 543 | _initerr(); |
---|
| 544 | |
---|
[4182] | 545 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &oldchannels) == -1 ) { |
---|
[4186] | 546 | _seterrre(); |
---|
[4182] | 547 | return -1; |
---|
| 548 | } |
---|
| 549 | |
---|
[4179] | 550 | for (i = 0; i < channels; i++) { |
---|
| 551 | s = c[i] * 65535.0; |
---|
| 552 | if ( s > 66190.0 || s < -655.0 ) { |
---|
| 553 | _seterr(ROAR_ERROR_RANGE); |
---|
| 554 | return -1; |
---|
| 555 | } else if ( s > 65535.0 ) { |
---|
| 556 | s = 65535.0; |
---|
| 557 | } else if ( s < 0.0 ) { |
---|
| 558 | s = 0.0; |
---|
| 559 | } |
---|
| 560 | mixer.mixer[i] = s; |
---|
| 561 | } |
---|
[4175] | 562 | |
---|
| 563 | mixer.scale = 65535; |
---|
[4182] | 564 | |
---|
| 565 | if ( channels != oldchannels ) { |
---|
| 566 | handled = 0; |
---|
| 567 | switch (oldchannels) { |
---|
| 568 | case 1: |
---|
| 569 | if ( channels == 2 ) { |
---|
| 570 | mixer.mixer[0] = (mixer.mixer[0] + mixer.mixer[1]) / 2; |
---|
| 571 | handled = 1; |
---|
| 572 | } |
---|
| 573 | break; |
---|
| 574 | case 2: |
---|
| 575 | if ( channels == 1 ) { |
---|
| 576 | mixer.mixer[1] = mixer.mixer[0]; |
---|
| 577 | handled = 1; |
---|
| 578 | } |
---|
| 579 | break; |
---|
| 580 | case 4: |
---|
| 581 | if ( channels == 1 ) { |
---|
| 582 | mixer.mixer[1] = mixer.mixer[0]; |
---|
| 583 | mixer.mixer[2] = mixer.mixer[0]; |
---|
| 584 | mixer.mixer[3] = mixer.mixer[0]; |
---|
| 585 | handled = 1; |
---|
| 586 | } else if ( channels == 2 ) { |
---|
| 587 | mixer.mixer[2] = mixer.mixer[0]; |
---|
| 588 | mixer.mixer[3] = mixer.mixer[1]; |
---|
| 589 | handled = 1; |
---|
| 590 | } |
---|
| 591 | break; |
---|
| 592 | } |
---|
| 593 | if ( handled ) { |
---|
| 594 | channels = oldchannels; |
---|
| 595 | } else { |
---|
| 596 | _seterr(ROAR_ERROR_INVAL); |
---|
| 597 | return -1; |
---|
| 598 | } |
---|
| 599 | } |
---|
[4175] | 600 | |
---|
| 601 | if ( roar_set_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, channels) == -1 ) { |
---|
[4186] | 602 | _seterrre(); |
---|
[4175] | 603 | return -1; |
---|
| 604 | } |
---|
| 605 | |
---|
| 606 | return 0; |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | int roar_vs_volume_mono (roar_vs_t * vss, float c, int * error) { |
---|
| 610 | return roar_vs_volume(vss, &c, 1, error); |
---|
| 611 | } |
---|
| 612 | |
---|
| 613 | int roar_vs_volume_stereo (roar_vs_t * vss, float l, float r, int * error) { |
---|
| 614 | float c[2] = {l, r}; |
---|
| 615 | return roar_vs_volume(vss, c, 2, error); |
---|
| 616 | } |
---|
| 617 | |
---|
| 618 | int roar_vs_volume_get (roar_vs_t * vss, float * l, float * r, int * error) { |
---|
| 619 | struct roar_mixer_settings mixer; |
---|
| 620 | int channels; |
---|
| 621 | |
---|
| 622 | if ( vss == NULL || l == NULL || r == NULL ) { |
---|
| 623 | _seterr(ROAR_ERROR_INVAL); |
---|
| 624 | return -1; |
---|
| 625 | } |
---|
| 626 | |
---|
| 627 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 628 | _seterr(ROAR_ERROR_INVAL); |
---|
| 629 | return -1; |
---|
| 630 | } |
---|
| 631 | |
---|
[4186] | 632 | _initerr(); |
---|
| 633 | |
---|
[4175] | 634 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &channels) == -1 ) { |
---|
[4186] | 635 | _seterrre(); |
---|
[4175] | 636 | return -1; |
---|
| 637 | } |
---|
| 638 | |
---|
| 639 | if ( channels == 1 ) |
---|
| 640 | mixer.mixer[1] = mixer.mixer[0]; |
---|
| 641 | |
---|
| 642 | *l = mixer.mixer[0] / (float)mixer.scale; |
---|
| 643 | *r = mixer.mixer[1] / (float)mixer.scale; |
---|
| 644 | |
---|
| 645 | return 0; |
---|
| 646 | } |
---|
| 647 | |
---|
[4176] | 648 | int roar_vs_meta (roar_vs_t * vss, struct roar_keyval * kv, size_t len, int * error) { |
---|
| 649 | struct roar_meta meta; |
---|
| 650 | size_t i; |
---|
| 651 | int type; |
---|
[4180] | 652 | int ret = 0; |
---|
[4176] | 653 | |
---|
| 654 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 655 | _seterr(ROAR_ERROR_INVAL); |
---|
| 656 | return -1; |
---|
| 657 | } |
---|
| 658 | |
---|
| 659 | meta.type = ROAR_META_TYPE_NONE; |
---|
| 660 | meta.key[0] = 0; |
---|
| 661 | meta.value = NULL; |
---|
| 662 | |
---|
[4186] | 663 | _initerr(); |
---|
[4176] | 664 | |
---|
[4180] | 665 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_CLEAR, &meta) == -1 ) { |
---|
[4186] | 666 | _seterrre(); |
---|
[4180] | 667 | ret = -1; |
---|
| 668 | } |
---|
[4176] | 669 | |
---|
| 670 | for (i = 0; i < len; i++) { |
---|
| 671 | type = roar_meta_inttype(kv[i].key); |
---|
| 672 | meta.type = type; |
---|
| 673 | meta.value = kv[i].value; |
---|
| 674 | |
---|
[4180] | 675 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_ADD, &meta) == -1 ) { |
---|
[4186] | 676 | _seterrre(); |
---|
[4180] | 677 | ret = -1; |
---|
| 678 | } |
---|
[4176] | 679 | } |
---|
| 680 | |
---|
| 681 | meta.type = ROAR_META_TYPE_NONE; |
---|
| 682 | meta.key[0] = 0; |
---|
| 683 | meta.value = NULL; |
---|
[4180] | 684 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_FINALIZE, &meta) == -1 ) { |
---|
[4186] | 685 | _seterrre(); |
---|
[4180] | 686 | ret = -1; |
---|
| 687 | } |
---|
[4176] | 688 | |
---|
[4180] | 689 | return ret; |
---|
[4176] | 690 | } |
---|
[4174] | 691 | |
---|
[4212] | 692 | int roar_vs_role (roar_vs_t * vss, int role, int * error) { |
---|
| 693 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 694 | _seterr(ROAR_ERROR_INVAL); |
---|
| 695 | return -1; |
---|
| 696 | } |
---|
| 697 | |
---|
| 698 | _initerr(); |
---|
| 699 | |
---|
| 700 | if ( roar_stream_set_role(vss->con, &(vss->stream), role) == -1 ) { |
---|
| 701 | _seterrre(); |
---|
| 702 | return -1; |
---|
| 703 | } |
---|
| 704 | |
---|
| 705 | return 0; |
---|
| 706 | } |
---|
| 707 | |
---|
[4183] | 708 | struct roar_connection * roar_vs_connection_obj(roar_vs_t * vss, int * error) { |
---|
| 709 | return vss->con; |
---|
| 710 | } |
---|
| 711 | |
---|
| 712 | struct roar_stream * roar_vs_stream_obj (roar_vs_t * vss, int * error) { |
---|
| 713 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 714 | _seterr(ROAR_ERROR_INVAL); |
---|
[4186] | 715 | return NULL; |
---|
[4183] | 716 | } |
---|
| 717 | |
---|
| 718 | return &(vss->stream); |
---|
| 719 | } |
---|
| 720 | |
---|
| 721 | struct roar_vio_calls * roar_vs_vio_obj (roar_vs_t * vss, int * error) { |
---|
| 722 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 723 | _seterr(ROAR_ERROR_INVAL); |
---|
[4186] | 724 | return NULL; |
---|
[4183] | 725 | } |
---|
| 726 | |
---|
| 727 | return &(vss->vio); |
---|
| 728 | } |
---|
| 729 | |
---|
[4173] | 730 | //ll |
---|