[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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[4580] | 38 | #define FLAG_NONE 0x0000 |
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| 39 | #define FLAG_STREAM 0x0001 |
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| 40 | #define FLAG_NONBLOCK 0x0002 |
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| 41 | #define FLAG_BUFFERED 0x0004 |
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| 42 | #define FLAG_CLOSEFILE 0x0008 |
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| 43 | #define FLAG_DIR_IN 0x1000 |
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| 44 | #define FLAG_DIR_OUT 0x2000 |
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[4174] | 45 | |
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[4186] | 46 | #define _initerr() do { errno = 0; roar_err_clear(); } while(0) |
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| 47 | #define _seterr(x) do { if ( error != NULL ) *error = (x); } while(0) |
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| 48 | #define _seterrre() do { _seterr(roar_errno); } while(0) |
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| 49 | #define _seterrse() do { roar_err_from_errno(); _seterr(roar_errno); } while(0) |
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[4260] | 50 | #define _ckvss(ret) do { if ( vss == NULL ) { _seterr(ROAR_ERROR_INVAL); return (ret); } } while(0) |
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[4174] | 51 | |
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| 52 | struct roar_vs { |
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| 53 | int flags; |
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| 54 | struct roar_connection con_store; |
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| 55 | struct roar_connection * con; |
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| 56 | struct roar_stream stream; |
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| 57 | struct roar_vio_calls vio; |
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[4206] | 58 | struct roar_audio_info info; |
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| 59 | size_t readc, writec; |
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| 60 | int mixerid; |
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| 61 | int first_primid; |
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[4580] | 62 | struct roar_buffer * readbuffer, * writebuffer; |
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| 63 | struct roar_vio_calls file_store; |
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| 64 | struct roar_vio_calls * file; |
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[4174] | 65 | }; |
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| 66 | |
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[4206] | 67 | static int _roar_vs_find_first_prim(roar_vs_t * vss); |
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| 68 | |
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[4174] | 69 | const char * roar_vs_strerr(int error) { |
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| 70 | const struct { |
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| 71 | int err; |
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| 72 | const char * msg; |
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| 73 | } msgs[] = { |
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[4181] | 74 | {ROAR_ERROR_NONE, "No error"}, |
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| 75 | {ROAR_ERROR_PERM, "Operation not permitted"}, |
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| 76 | {ROAR_ERROR_NOENT, "No such object, file or directory"}, |
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| 77 | {ROAR_ERROR_BADMSG, "Bad message"}, |
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| 78 | {ROAR_ERROR_BUSY, "Device or resource busy"}, |
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| 79 | {ROAR_ERROR_CONNREFUSED, "Connection refused"}, |
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| 80 | {ROAR_ERROR_NOSYS, "Function not implemented"}, |
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| 81 | {ROAR_ERROR_NOTSUP, "Operation not supported"}, |
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| 82 | {ROAR_ERROR_PIPE, "Broken pipe"}, |
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| 83 | {ROAR_ERROR_PROTO, "Protocol error"}, |
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| 84 | {ROAR_ERROR_RANGE, "Result too large or parameter out of range"}, |
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| 85 | {ROAR_ERROR_MSGSIZE, "Message too long"}, |
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| 86 | {ROAR_ERROR_NOMEM, "Not enough space"}, |
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| 87 | {ROAR_ERROR_INVAL, "Invalid argument"}, |
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[4174] | 88 | {-1, NULL} |
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| 89 | }; |
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| 90 | int i; |
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| 91 | |
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| 92 | for (i = 0; msgs[i].msg != NULL; i++) |
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| 93 | if ( msgs[i].err == error ) |
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| 94 | return msgs[i].msg; |
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| 95 | |
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| 96 | return "(unknown)"; |
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| 97 | } |
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| 98 | |
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| 99 | static roar_vs_t * roar_vs_init(int * error) { |
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| 100 | roar_vs_t * vss = roar_mm_malloc(sizeof(roar_vs_t)); |
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| 101 | |
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| 102 | if ( vss == NULL ) { |
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[4186] | 103 | _seterrse(); |
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[4174] | 104 | return NULL; |
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| 105 | } |
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| 106 | |
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| 107 | memset(vss, 0, sizeof(roar_vs_t)); |
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| 108 | |
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[4206] | 109 | vss->mixerid = -1; |
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| 110 | vss->first_primid = -1; |
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| 111 | |
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[4174] | 112 | return vss; |
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| 113 | } |
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| 114 | |
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| 115 | roar_vs_t * roar_vs_new_from_con(struct roar_connection * con, int * error) { |
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| 116 | roar_vs_t * vss = roar_vs_init(error); |
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| 117 | |
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| 118 | if ( vss == NULL ) |
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| 119 | return NULL; |
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| 120 | |
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| 121 | vss->con = con; |
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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 | roar_vs_t * roar_vs_new(const char * server, const char * name, int * error) { |
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| 127 | roar_vs_t * vss = roar_vs_init(error); |
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| 128 | int ret; |
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| 129 | |
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| 130 | if ( vss == NULL ) |
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| 131 | return NULL; |
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| 132 | |
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| 133 | vss->con = &(vss->con_store); |
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| 134 | |
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[4186] | 135 | _initerr(); |
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| 136 | |
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[4174] | 137 | ret = roar_simple_connect(vss->con, (char*)server, (char*)name); |
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| 138 | |
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| 139 | if ( ret == -1 ) { |
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| 140 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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[4186] | 141 | _seterrre(); |
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[4174] | 142 | return NULL; |
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| 143 | } |
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| 144 | |
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| 145 | return vss; |
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| 146 | } |
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| 147 | |
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| 148 | int roar_vs_stream(roar_vs_t * vss, const struct roar_audio_info * info, int dir, int * error) { |
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[4206] | 149 | struct roar_stream_info sinfo; |
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[4174] | 150 | int ret; |
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| 151 | |
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[4260] | 152 | _ckvss(-1); |
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| 153 | |
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[4174] | 154 | if ( vss->flags & FLAG_STREAM ) { |
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| 155 | _seterr(ROAR_ERROR_INVAL); |
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| 156 | return -1; |
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| 157 | } |
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| 158 | |
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[4186] | 159 | _initerr(); |
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| 160 | |
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[4206] | 161 | if ( info != &(vss->info) ) |
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| 162 | memcpy(&(vss->info), info, sizeof(struct roar_audio_info)); |
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| 163 | |
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[4174] | 164 | ret = roar_vio_simple_new_stream_obj(&(vss->vio), vss->con, &(vss->stream), |
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| 165 | info->rate, info->channels, info->bits, info->codec, |
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| 166 | dir |
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| 167 | ); |
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| 168 | |
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| 169 | if ( ret == -1 ) { |
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[4186] | 170 | _seterrre(); |
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[4174] | 171 | return -1; |
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| 172 | } |
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| 173 | |
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[4206] | 174 | if ( roar_stream_get_info(vss->con, &(vss->stream), &sinfo) != -1 ) { |
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| 175 | vss->mixerid = sinfo.mixer; |
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| 176 | _roar_vs_find_first_prim(vss); |
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| 177 | } |
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| 178 | |
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[4174] | 179 | vss->flags |= FLAG_STREAM; |
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| 180 | |
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[4580] | 181 | switch (dir) { |
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| 182 | case ROAR_DIR_PLAY: vss->flags |= FLAG_DIR_OUT; break; |
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| 183 | } |
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| 184 | |
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[4174] | 185 | return 0; |
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| 186 | } |
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| 187 | |
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| 188 | 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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| 189 | roar_vs_t * vss = roar_vs_new(server, name, error); |
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| 190 | int ret; |
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| 191 | |
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| 192 | if (vss == NULL) |
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| 193 | return NULL; |
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| 194 | |
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[4206] | 195 | memset(&(vss->info), 0, sizeof(vss->info)); |
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[4174] | 196 | |
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[4206] | 197 | vss->info.rate = rate; |
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| 198 | vss->info.channels = channels; |
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| 199 | vss->info.codec = codec; |
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| 200 | vss->info.bits = bits; |
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[4174] | 201 | |
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[4206] | 202 | ret = roar_vs_stream(vss, &(vss->info), dir, error); |
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[4174] | 203 | |
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| 204 | if (ret == -1) { |
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| 205 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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| 206 | return NULL; |
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| 207 | } |
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| 208 | |
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| 209 | return vss; |
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| 210 | } |
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| 211 | |
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[4580] | 212 | int roar_vs_file(roar_vs_t * vss, struct roar_vio_calls * vio, int closefile, int * error) { |
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| 213 | _ckvss(-1); |
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| 214 | |
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| 215 | if ( vio == NULL || (closefile != ROAR_VS_TRUE && closefile != ROAR_VS_FALSE)) { |
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| 216 | _seterr(ROAR_ERROR_INVAL); |
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| 217 | return -1; |
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| 218 | } |
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| 219 | |
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| 220 | if ( vss->file != NULL ) { |
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| 221 | _seterr(ROAR_ERROR_INVAL); |
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| 222 | return -1; |
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| 223 | } |
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| 224 | |
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| 225 | vss->file = vio; |
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| 226 | if ( closefile == ROAR_VS_TRUE ) |
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| 227 | vss->flags |= FLAG_CLOSEFILE; |
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| 228 | |
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| 229 | return 0; |
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| 230 | } |
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| 231 | |
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| 232 | int roar_vs_file_simple(roar_vs_t * vss, char * filename, int * error) { |
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| 233 | struct roar_vio_defaults def; |
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| 234 | struct roar_vio_calls * file; |
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| 235 | char buf[64]; |
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| 236 | ssize_t ret; |
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| 237 | int dir = O_RDONLY; |
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| 238 | int codec; |
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| 239 | |
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| 240 | _ckvss(-1); |
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| 241 | |
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| 242 | if ( vss->file != NULL ) { |
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| 243 | _seterr(ROAR_ERROR_INVAL); |
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| 244 | return -1; |
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| 245 | } |
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| 246 | |
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| 247 | if ( vss->flags & FLAG_STREAM ) { |
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| 248 | switch (vss->flags & (FLAG_DIR_IN|FLAG_DIR_OUT)) { |
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| 249 | case FLAG_DIR_IN: dir = O_WRONLY; break; |
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| 250 | case FLAG_DIR_OUT: dir = O_RDONLY; break; |
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| 251 | case FLAG_DIR_IN|FLAG_DIR_OUT: dir = O_RDWR; break; |
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| 252 | default: return -1; |
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| 253 | } |
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| 254 | } |
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| 255 | |
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| 256 | file = &(vss->file_store); |
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| 257 | |
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| 258 | // TODO: FIXME: correct error handling bellow. |
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| 259 | |
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| 260 | if ( roar_vio_dstr_init_defaults(&def, ROAR_VIO_DEF_TYPE_NONE, dir, 0644) == -1 ) |
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| 261 | return -11; |
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| 262 | |
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| 263 | if ( roar_vio_open_dstr(file, filename, &def, 1) == -1 ) { |
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| 264 | return -1; |
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| 265 | } |
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| 266 | |
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| 267 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 268 | ret = roar_vio_read(file, buf, sizeof(buf)); |
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| 269 | |
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| 270 | codec = roar_file_codecdetect(buf, ret); |
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| 271 | |
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| 272 | if ( vss->info.codec == -1 ) { |
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| 273 | roar_vio_close(file); |
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| 274 | return -1; |
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| 275 | } |
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| 276 | |
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| 277 | memset(&(vss->info), 0, sizeof(vss->info)); |
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| 278 | |
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| 279 | vss->info.rate = ROAR_RATE_DEFAULT; |
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| 280 | vss->info.channels = ROAR_CHANNELS_DEFAULT; |
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| 281 | vss->info.codec = codec; |
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| 282 | vss->info.bits = ROAR_BITS_DEFAULT; |
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| 283 | |
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| 284 | if ( roar_vio_lseek(file, 0, SEEK_SET) != 0 ) { |
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| 285 | roar_vio_close(file); |
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| 286 | return -1; |
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| 287 | } |
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| 288 | |
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| 289 | ret = roar_vs_stream(vss, &(vss->info), ROAR_DIR_PLAY, error); |
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| 290 | |
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| 291 | if ( ret == -1 ) { |
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| 292 | roar_vio_close(file); |
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| 293 | return -1; |
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| 294 | } |
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| 295 | } |
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| 296 | |
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| 297 | if ( roar_vs_file(vss, file, ROAR_VS_TRUE, error) == -1 ) { |
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| 298 | roar_vio_close(file); |
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| 299 | return -1; |
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| 300 | } |
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| 301 | |
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| 302 | return 0; |
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| 303 | } |
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| 304 | |
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| 305 | roar_vs_t * roar_vs_new_from_file(const char * server, const char * name, char * filename, int * error) { |
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| 306 | roar_vs_t * vss = roar_vs_new(server, name, error); |
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| 307 | |
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| 308 | if ( vss == NULL ) |
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| 309 | return NULL; |
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| 310 | |
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| 311 | if ( roar_vs_file_simple(vss, filename, error) != 0 ) { |
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| 312 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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| 313 | return NULL; |
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| 314 | } |
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| 315 | |
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| 316 | return vss; |
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| 317 | } |
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| 318 | |
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[4174] | 319 | int roar_vs_close(roar_vs_t * vss, int killit, int * error) { |
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[4178] | 320 | if ( killit != ROAR_VS_TRUE && killit != ROAR_VS_FALSE ) { |
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| 321 | _seterr(ROAR_ERROR_UNKNOWN); |
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| 322 | return -1; |
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| 323 | } |
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| 324 | |
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[4260] | 325 | _ckvss(-1); |
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| 326 | |
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[4580] | 327 | if ( vss->readbuffer != NULL ) |
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| 328 | roar_buffer_free(vss->readbuffer); |
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| 329 | if ( vss->writebuffer != NULL ) |
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| 330 | roar_buffer_free(vss->writebuffer); |
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| 331 | |
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| 332 | if ( vss->file != NULL && vss->flags & FLAG_CLOSEFILE ) |
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| 333 | roar_vio_close(vss->file); |
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| 334 | |
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[4174] | 335 | if ( vss->flags & FLAG_STREAM ) { |
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[4178] | 336 | if ( killit == ROAR_VS_TRUE ) { |
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[4174] | 337 | roar_kick(vss->con, ROAR_OT_STREAM, roar_stream_get_id(&(vss->stream))); |
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| 338 | } |
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| 339 | |
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| 340 | roar_vio_close(&(vss->vio)); |
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| 341 | } |
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| 342 | |
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| 343 | if ( vss->con == &(vss->con_store) ) { |
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| 344 | roar_disconnect(vss->con); |
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| 345 | } |
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| 346 | |
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| 347 | roar_mm_free(vss); |
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| 348 | return 0; |
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| 349 | } |
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| 350 | |
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| 351 | ssize_t roar_vs_write(roar_vs_t * vss, const void * buf, size_t len, int * error) { |
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| 352 | ssize_t ret; |
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| 353 | |
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[4260] | 354 | _ckvss(-1); |
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| 355 | |
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[4174] | 356 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 357 | _seterr(ROAR_ERROR_INVAL); |
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| 358 | return -1; |
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| 359 | } |
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| 360 | |
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[4186] | 361 | _initerr(); |
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| 362 | |
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[4174] | 363 | ret = roar_vio_write(&(vss->vio), (void*)buf, len); |
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| 364 | |
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| 365 | if ( ret == -1 ) { |
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[4199] | 366 | #ifdef EAGAIN |
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| 367 | if ( errno == EAGAIN ) |
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| 368 | return 0; |
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| 369 | #endif |
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| 370 | |
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| 371 | #ifdef EWOULDBLOCK |
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| 372 | if ( errno == EWOULDBLOCK ) |
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| 373 | return 0; |
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| 374 | #endif |
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| 375 | |
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[4186] | 376 | _seterrre(); |
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[4206] | 377 | } else { |
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| 378 | vss->writec += ret; |
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[4174] | 379 | } |
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| 380 | |
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| 381 | return ret; |
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| 382 | } |
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| 383 | |
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| 384 | ssize_t roar_vs_read (roar_vs_t * vss, void * buf, size_t len, int * error) { |
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| 385 | ssize_t ret; |
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| 386 | |
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[4260] | 387 | _ckvss(-1); |
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| 388 | |
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[4174] | 389 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 390 | _seterr(ROAR_ERROR_INVAL); |
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| 391 | return -1; |
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| 392 | } |
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| 393 | |
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[4186] | 394 | _initerr(); |
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| 395 | |
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[4174] | 396 | ret = roar_vio_read(&(vss->vio), buf, len); |
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| 397 | |
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| 398 | if ( ret == -1 ) { |
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[4186] | 399 | _seterrre(); |
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[4206] | 400 | } else { |
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| 401 | vss->readc += ret; |
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[4174] | 402 | } |
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| 403 | |
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| 404 | return ret; |
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| 405 | } |
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| 406 | |
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[4175] | 407 | int roar_vs_sync (roar_vs_t * vss, int wait, int * error) { |
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[4579] | 408 | struct roar_event waits, triggered; |
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| 409 | |
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[4260] | 410 | _ckvss(-1); |
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| 411 | |
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[4175] | 412 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 413 | _seterr(ROAR_ERROR_INVAL); |
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| 414 | return -1; |
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| 415 | } |
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| 416 | |
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[4579] | 417 | if ( wait != ROAR_VS_NOWAIT && wait != ROAR_VS_WAIT ) { |
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[4175] | 418 | _seterr(ROAR_ERROR_INVAL); |
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| 419 | return -1; |
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| 420 | } |
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| 421 | |
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[4186] | 422 | _initerr(); |
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| 423 | |
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| 424 | if ( roar_vio_sync(&(vss->vio)) == -1 ) { |
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| 425 | _seterrre(); |
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| 426 | return -1; |
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| 427 | } |
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[4175] | 428 | |
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[4579] | 429 | if ( wait == ROAR_VS_WAIT ) { |
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| 430 | memset(&waits, 0, sizeof(waits)); |
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| 431 | waits.event = ROAR_OE_STREAM_XRUN; |
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| 432 | waits.emitter = -1; |
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| 433 | waits.target = roar_stream_get_id(&(vss->stream)); |
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| 434 | waits.target_type = ROAR_OT_STREAM; |
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| 435 | |
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| 436 | if ( roar_wait(vss->con, &triggered, &waits, 1) == -1 ) { |
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| 437 | _seterrre(); |
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| 438 | return -1; |
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| 439 | } |
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| 440 | } |
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| 441 | |
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[4175] | 442 | return 0; |
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| 443 | } |
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| 444 | |
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| 445 | int roar_vs_blocking (roar_vs_t * vss, int val, int * error) { |
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| 446 | int old = -1; |
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| 447 | |
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[4260] | 448 | _ckvss(-1); |
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| 449 | |
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[4175] | 450 | if ( !(vss->flags & FLAG_STREAM) ) { |
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| 451 | _seterr(ROAR_ERROR_INVAL); |
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| 452 | return -1; |
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| 453 | } |
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| 454 | |
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| 455 | old = vss->flags & FLAG_NONBLOCK ? ROAR_VS_FALSE : ROAR_VS_TRUE; |
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| 456 | |
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[4186] | 457 | _initerr(); |
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| 458 | |
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[4175] | 459 | switch (val) { |
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| 460 | case ROAR_VS_TRUE: |
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| 461 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_BLOCK) == -1 ) { |
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[4186] | 462 | _seterrre(); |
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[4175] | 463 | return -1; |
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| 464 | } |
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| 465 | vss->flags |= FLAG_NONBLOCK; |
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| 466 | vss->flags -= FLAG_NONBLOCK; |
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| 467 | return old; |
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| 468 | break; |
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| 469 | case ROAR_VS_FALSE: |
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| 470 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_NONBLOCK) == -1 ) { |
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[4186] | 471 | _seterrre(); |
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[4175] | 472 | return -1; |
---|
| 473 | } |
---|
| 474 | vss->flags |= FLAG_NONBLOCK; |
---|
| 475 | return old; |
---|
| 476 | break; |
---|
| 477 | case ROAR_VS_TOGGLE: |
---|
| 478 | if ( old == ROAR_VS_TRUE ) { |
---|
| 479 | return roar_vs_blocking(vss, ROAR_VS_FALSE, error); |
---|
| 480 | } else { |
---|
| 481 | return roar_vs_blocking(vss, ROAR_VS_TRUE, error); |
---|
| 482 | } |
---|
| 483 | break; |
---|
| 484 | case ROAR_VS_ASK: |
---|
| 485 | return old; |
---|
| 486 | break; |
---|
| 487 | } |
---|
| 488 | |
---|
| 489 | _seterr(ROAR_ERROR_INVAL); |
---|
| 490 | return -1; |
---|
| 491 | } |
---|
| 492 | |
---|
[4206] | 493 | static int _roar_vs_find_first_prim(roar_vs_t * vss) { |
---|
| 494 | struct roar_stream stream; |
---|
| 495 | struct roar_stream_info info; |
---|
| 496 | int id[ROAR_STREAMS_MAX]; |
---|
| 497 | int num; |
---|
| 498 | int i; |
---|
| 499 | |
---|
| 500 | if ( vss->first_primid != -1 ) |
---|
| 501 | return vss->first_primid; |
---|
| 502 | |
---|
| 503 | if ( vss->mixerid == -1 ) |
---|
| 504 | return -1; |
---|
| 505 | |
---|
| 506 | if ( (num = roar_list_streams(vss->con, id, ROAR_STREAMS_MAX)) == -1 ) { |
---|
| 507 | return -1; |
---|
| 508 | } |
---|
| 509 | |
---|
| 510 | for (i = 0; i < num; i++) { |
---|
| 511 | if ( roar_get_stream(vss->con, &stream, id[i]) == -1 ) |
---|
| 512 | continue; |
---|
| 513 | |
---|
| 514 | if ( stream.dir != ROAR_DIR_OUTPUT ) |
---|
| 515 | continue; |
---|
| 516 | |
---|
| 517 | if ( roar_stream_get_info(vss->con, &stream, &info) == -1 ) |
---|
| 518 | continue; |
---|
| 519 | |
---|
| 520 | if ( info.mixer == vss->mixerid ) { |
---|
| 521 | vss->first_primid = id[i]; |
---|
| 522 | return id[i]; |
---|
| 523 | } |
---|
| 524 | } |
---|
| 525 | |
---|
| 526 | return -1; |
---|
| 527 | } |
---|
| 528 | |
---|
| 529 | ssize_t roar_vs_position(roar_vs_t * vss, int backend, int * error) { |
---|
| 530 | struct roar_stream stream; |
---|
| 531 | struct roar_stream out_stream; |
---|
| 532 | struct roar_stream_info out_info; |
---|
| 533 | size_t offset; |
---|
| 534 | |
---|
[4260] | 535 | _ckvss(-1); |
---|
| 536 | |
---|
[4206] | 537 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 538 | _seterr(ROAR_ERROR_INVAL); |
---|
| 539 | return -1; |
---|
| 540 | } |
---|
| 541 | |
---|
| 542 | _initerr(); |
---|
| 543 | |
---|
| 544 | if ( roar_get_stream(vss->con, &stream, roar_stream_get_id(&(vss->stream))) == -1 ) { |
---|
| 545 | _seterrre(); |
---|
| 546 | return -1; |
---|
| 547 | } |
---|
| 548 | |
---|
| 549 | switch (backend) { |
---|
| 550 | case ROAR_VS_BACKEND_NONE: |
---|
| 551 | return stream.pos; |
---|
| 552 | break; |
---|
| 553 | case ROAR_VS_BACKEND_FIRST: |
---|
| 554 | // _roar_vs_find_first_prim(vss); |
---|
| 555 | if ( vss->first_primid == -1 ) { |
---|
| 556 | _seterr(ROAR_ERROR_UNKNOWN); |
---|
| 557 | return -1; |
---|
| 558 | } |
---|
| 559 | |
---|
| 560 | roar_stream_new_by_id(&out_stream, vss->first_primid); |
---|
| 561 | |
---|
| 562 | if ( roar_stream_get_info(vss->con, &out_stream, &out_info) == -1 ) { |
---|
| 563 | _seterrre(); |
---|
| 564 | return -1; |
---|
| 565 | } |
---|
| 566 | |
---|
| 567 | offset = out_info.delay * vss->info.rate; |
---|
| 568 | offset /= 1000000; |
---|
| 569 | |
---|
| 570 | return stream.pos + offset; |
---|
| 571 | break; |
---|
| 572 | default: |
---|
| 573 | _seterr(ROAR_ERROR_NOTSUP); |
---|
| 574 | return -1; |
---|
| 575 | break; |
---|
| 576 | } |
---|
| 577 | |
---|
[4186] | 578 | _seterr(ROAR_ERROR_NOSYS); |
---|
[4175] | 579 | return -1; |
---|
| 580 | } |
---|
| 581 | |
---|
[4206] | 582 | roar_mus_t roar_vs_latency(roar_vs_t * vss, int backend, int * error) { |
---|
| 583 | ssize_t pos = roar_vs_position(vss, backend, error); |
---|
| 584 | ssize_t bps; // byte per sample |
---|
| 585 | size_t lioc; // local IO (byte) counter |
---|
| 586 | size_t lpos; // local possition |
---|
| 587 | roar_mus_t lag; |
---|
| 588 | |
---|
[4215] | 589 | _initerr(); |
---|
| 590 | |
---|
[4260] | 591 | _ckvss(-1); |
---|
| 592 | |
---|
[4215] | 593 | if (pos == -1) { |
---|
| 594 | _seterrre(); |
---|
| 595 | return 0; |
---|
| 596 | } |
---|
[4206] | 597 | |
---|
| 598 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 599 | _seterr(ROAR_ERROR_INVAL); |
---|
[4213] | 600 | return 0; |
---|
[4206] | 601 | } |
---|
| 602 | |
---|
| 603 | if ( vss->writec == 0 ) { |
---|
| 604 | lioc = vss->readc; |
---|
| 605 | } else { |
---|
| 606 | lioc = vss->writec; |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | bps = roar_info2samplesize(&(vss->info)); |
---|
| 610 | |
---|
| 611 | if ( bps == -1 ) { |
---|
| 612 | _seterrre(); |
---|
[4213] | 613 | return 0; |
---|
[4206] | 614 | } |
---|
| 615 | |
---|
| 616 | lpos = lioc / bps; |
---|
| 617 | |
---|
| 618 | lag = (roar_mus_t)lpos - (roar_mus_t)pos; |
---|
| 619 | |
---|
| 620 | // we now have the lag in frames |
---|
| 621 | // return value are ms |
---|
| 622 | // so we need to multiply with 1s/ms and |
---|
| 623 | // multiply by 1/rate |
---|
| 624 | |
---|
| 625 | lag *= 1000000; // 1s/ms |
---|
| 626 | lag /= vss->info.rate; |
---|
| 627 | |
---|
[4213] | 628 | if ( lag == 0 ) { |
---|
| 629 | _seterr(ROAR_ERROR_NONE); |
---|
| 630 | } |
---|
| 631 | |
---|
[4206] | 632 | return lag; |
---|
| 633 | } |
---|
| 634 | |
---|
[4175] | 635 | static int roar_vs_flag(roar_vs_t * vss, int flag, int val, int * error) { |
---|
| 636 | struct roar_stream_info info; |
---|
| 637 | int old = -1; |
---|
| 638 | |
---|
[4260] | 639 | _ckvss(-1); |
---|
| 640 | |
---|
[4175] | 641 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 642 | _seterr(ROAR_ERROR_INVAL); |
---|
| 643 | return -1; |
---|
| 644 | } |
---|
| 645 | |
---|
| 646 | if ( val != ROAR_VS_ASK ) |
---|
| 647 | old = roar_vs_flag(vss, flag, ROAR_VS_ASK, error); |
---|
| 648 | |
---|
[4186] | 649 | _initerr(); |
---|
| 650 | |
---|
[4175] | 651 | switch (val) { |
---|
| 652 | case ROAR_VS_TRUE: |
---|
| 653 | case ROAR_VS_FALSE: |
---|
| 654 | if ( roar_stream_set_flags(vss->con, &(vss->stream), flag, |
---|
| 655 | val == ROAR_VS_TRUE ? ROAR_SET_FLAG : ROAR_RESET_FLAG) == -1 ) { |
---|
[4186] | 656 | _seterrre(); |
---|
[4175] | 657 | return -1; |
---|
| 658 | } |
---|
| 659 | return old; |
---|
| 660 | break; |
---|
| 661 | case ROAR_VS_TOGGLE: |
---|
| 662 | return roar_vs_flag(vss, flag, old == ROAR_VS_TRUE ? ROAR_VS_FALSE : ROAR_VS_TRUE, error); |
---|
| 663 | break; |
---|
| 664 | case ROAR_VS_ASK: |
---|
| 665 | if ( roar_stream_get_info(vss->con, &(vss->stream), &info) == -1 ) { |
---|
[4186] | 666 | _seterrre(); |
---|
[4175] | 667 | return -1; |
---|
| 668 | } |
---|
| 669 | return info.flags & flag ? ROAR_VS_TRUE : ROAR_VS_FALSE; |
---|
| 670 | break; |
---|
| 671 | } |
---|
| 672 | |
---|
[4187] | 673 | _seterr(ROAR_ERROR_INVAL); |
---|
[4175] | 674 | return -1; |
---|
| 675 | } |
---|
| 676 | |
---|
| 677 | int roar_vs_pause(roar_vs_t * vss, int val, int * error) { |
---|
| 678 | return roar_vs_flag(vss, ROAR_FLAG_PAUSE, val, error); |
---|
| 679 | } |
---|
| 680 | |
---|
| 681 | int roar_vs_mute (roar_vs_t * vss, int val, int * error) { |
---|
| 682 | return roar_vs_flag(vss, ROAR_FLAG_MUTE, val, error); |
---|
| 683 | } |
---|
| 684 | |
---|
| 685 | static int roar_vs_volume (roar_vs_t * vss, float * c, size_t channels, int * error) { |
---|
| 686 | struct roar_mixer_settings mixer; |
---|
| 687 | size_t i; |
---|
[4179] | 688 | register float s; |
---|
[4182] | 689 | int oldchannels; |
---|
| 690 | int handled; |
---|
[4175] | 691 | |
---|
[4260] | 692 | _ckvss(-1); |
---|
| 693 | |
---|
[4175] | 694 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 695 | _seterr(ROAR_ERROR_INVAL); |
---|
| 696 | return -1; |
---|
| 697 | } |
---|
| 698 | |
---|
| 699 | if ( channels > ROAR_MAX_CHANNELS ) { |
---|
| 700 | _seterr(ROAR_ERROR_INVAL); |
---|
| 701 | return -1; |
---|
| 702 | } |
---|
| 703 | |
---|
[4186] | 704 | _initerr(); |
---|
| 705 | |
---|
[4182] | 706 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &oldchannels) == -1 ) { |
---|
[4186] | 707 | _seterrre(); |
---|
[4182] | 708 | return -1; |
---|
| 709 | } |
---|
| 710 | |
---|
[4179] | 711 | for (i = 0; i < channels; i++) { |
---|
| 712 | s = c[i] * 65535.0; |
---|
| 713 | if ( s > 66190.0 || s < -655.0 ) { |
---|
| 714 | _seterr(ROAR_ERROR_RANGE); |
---|
| 715 | return -1; |
---|
| 716 | } else if ( s > 65535.0 ) { |
---|
| 717 | s = 65535.0; |
---|
| 718 | } else if ( s < 0.0 ) { |
---|
| 719 | s = 0.0; |
---|
| 720 | } |
---|
| 721 | mixer.mixer[i] = s; |
---|
| 722 | } |
---|
[4175] | 723 | |
---|
| 724 | mixer.scale = 65535; |
---|
[4182] | 725 | |
---|
| 726 | if ( channels != oldchannels ) { |
---|
| 727 | handled = 0; |
---|
| 728 | switch (oldchannels) { |
---|
| 729 | case 1: |
---|
| 730 | if ( channels == 2 ) { |
---|
| 731 | mixer.mixer[0] = (mixer.mixer[0] + mixer.mixer[1]) / 2; |
---|
| 732 | handled = 1; |
---|
| 733 | } |
---|
| 734 | break; |
---|
| 735 | case 2: |
---|
| 736 | if ( channels == 1 ) { |
---|
| 737 | mixer.mixer[1] = mixer.mixer[0]; |
---|
| 738 | handled = 1; |
---|
| 739 | } |
---|
| 740 | break; |
---|
| 741 | case 4: |
---|
| 742 | if ( channels == 1 ) { |
---|
| 743 | mixer.mixer[1] = mixer.mixer[0]; |
---|
| 744 | mixer.mixer[2] = mixer.mixer[0]; |
---|
| 745 | mixer.mixer[3] = mixer.mixer[0]; |
---|
| 746 | handled = 1; |
---|
| 747 | } else if ( channels == 2 ) { |
---|
| 748 | mixer.mixer[2] = mixer.mixer[0]; |
---|
| 749 | mixer.mixer[3] = mixer.mixer[1]; |
---|
| 750 | handled = 1; |
---|
| 751 | } |
---|
| 752 | break; |
---|
| 753 | } |
---|
| 754 | if ( handled ) { |
---|
| 755 | channels = oldchannels; |
---|
| 756 | } else { |
---|
| 757 | _seterr(ROAR_ERROR_INVAL); |
---|
| 758 | return -1; |
---|
| 759 | } |
---|
| 760 | } |
---|
[4175] | 761 | |
---|
| 762 | if ( roar_set_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, channels) == -1 ) { |
---|
[4186] | 763 | _seterrre(); |
---|
[4175] | 764 | return -1; |
---|
| 765 | } |
---|
| 766 | |
---|
| 767 | return 0; |
---|
| 768 | } |
---|
| 769 | |
---|
| 770 | int roar_vs_volume_mono (roar_vs_t * vss, float c, int * error) { |
---|
| 771 | return roar_vs_volume(vss, &c, 1, error); |
---|
| 772 | } |
---|
| 773 | |
---|
| 774 | int roar_vs_volume_stereo (roar_vs_t * vss, float l, float r, int * error) { |
---|
| 775 | float c[2] = {l, r}; |
---|
| 776 | return roar_vs_volume(vss, c, 2, error); |
---|
| 777 | } |
---|
| 778 | |
---|
| 779 | int roar_vs_volume_get (roar_vs_t * vss, float * l, float * r, int * error) { |
---|
| 780 | struct roar_mixer_settings mixer; |
---|
| 781 | int channels; |
---|
| 782 | |
---|
| 783 | if ( vss == NULL || l == NULL || r == NULL ) { |
---|
| 784 | _seterr(ROAR_ERROR_INVAL); |
---|
| 785 | return -1; |
---|
| 786 | } |
---|
| 787 | |
---|
| 788 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 789 | _seterr(ROAR_ERROR_INVAL); |
---|
| 790 | return -1; |
---|
| 791 | } |
---|
| 792 | |
---|
[4186] | 793 | _initerr(); |
---|
| 794 | |
---|
[4175] | 795 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &channels) == -1 ) { |
---|
[4186] | 796 | _seterrre(); |
---|
[4175] | 797 | return -1; |
---|
| 798 | } |
---|
| 799 | |
---|
| 800 | if ( channels == 1 ) |
---|
| 801 | mixer.mixer[1] = mixer.mixer[0]; |
---|
| 802 | |
---|
| 803 | *l = mixer.mixer[0] / (float)mixer.scale; |
---|
| 804 | *r = mixer.mixer[1] / (float)mixer.scale; |
---|
| 805 | |
---|
| 806 | return 0; |
---|
| 807 | } |
---|
| 808 | |
---|
[4176] | 809 | int roar_vs_meta (roar_vs_t * vss, struct roar_keyval * kv, size_t len, int * error) { |
---|
| 810 | struct roar_meta meta; |
---|
| 811 | size_t i; |
---|
| 812 | int type; |
---|
[4180] | 813 | int ret = 0; |
---|
[4176] | 814 | |
---|
[4260] | 815 | _ckvss(-1); |
---|
| 816 | |
---|
[4176] | 817 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 818 | _seterr(ROAR_ERROR_INVAL); |
---|
| 819 | return -1; |
---|
| 820 | } |
---|
| 821 | |
---|
| 822 | meta.type = ROAR_META_TYPE_NONE; |
---|
| 823 | meta.key[0] = 0; |
---|
| 824 | meta.value = NULL; |
---|
| 825 | |
---|
[4186] | 826 | _initerr(); |
---|
[4176] | 827 | |
---|
[4180] | 828 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_CLEAR, &meta) == -1 ) { |
---|
[4186] | 829 | _seterrre(); |
---|
[4180] | 830 | ret = -1; |
---|
| 831 | } |
---|
[4176] | 832 | |
---|
| 833 | for (i = 0; i < len; i++) { |
---|
| 834 | type = roar_meta_inttype(kv[i].key); |
---|
| 835 | meta.type = type; |
---|
| 836 | meta.value = kv[i].value; |
---|
| 837 | |
---|
[4180] | 838 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_ADD, &meta) == -1 ) { |
---|
[4186] | 839 | _seterrre(); |
---|
[4180] | 840 | ret = -1; |
---|
| 841 | } |
---|
[4176] | 842 | } |
---|
| 843 | |
---|
| 844 | meta.type = ROAR_META_TYPE_NONE; |
---|
| 845 | meta.key[0] = 0; |
---|
| 846 | meta.value = NULL; |
---|
[4180] | 847 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_FINALIZE, &meta) == -1 ) { |
---|
[4186] | 848 | _seterrre(); |
---|
[4180] | 849 | ret = -1; |
---|
| 850 | } |
---|
[4176] | 851 | |
---|
[4180] | 852 | return ret; |
---|
[4176] | 853 | } |
---|
[4174] | 854 | |
---|
[4212] | 855 | int roar_vs_role (roar_vs_t * vss, int role, int * error) { |
---|
[4260] | 856 | _ckvss(-1); |
---|
| 857 | |
---|
[4212] | 858 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 859 | _seterr(ROAR_ERROR_INVAL); |
---|
| 860 | return -1; |
---|
| 861 | } |
---|
| 862 | |
---|
| 863 | _initerr(); |
---|
| 864 | |
---|
| 865 | if ( roar_stream_set_role(vss->con, &(vss->stream), role) == -1 ) { |
---|
| 866 | _seterrre(); |
---|
| 867 | return -1; |
---|
| 868 | } |
---|
| 869 | |
---|
| 870 | return 0; |
---|
| 871 | } |
---|
| 872 | |
---|
[4580] | 873 | |
---|
| 874 | int roar_vs_iterate (roar_vs_t * vss, int wait, int * error) { |
---|
| 875 | struct roar_vio_select vios[3]; |
---|
| 876 | struct roar_vio_selecttv rtv = {.sec = 0, .nsec = 1}; |
---|
| 877 | size_t len = 0; |
---|
| 878 | ssize_t i; |
---|
| 879 | ssize_t ret; |
---|
| 880 | int can_read = 0, can_write = 0; |
---|
| 881 | int can_flush_stream = 0, can_flush_file = 0; |
---|
| 882 | int is_eof = 0; |
---|
| 883 | void * data; |
---|
| 884 | |
---|
| 885 | _ckvss(-1); |
---|
| 886 | |
---|
| 887 | if ( wait != ROAR_VS_WAIT && wait != ROAR_VS_NOWAIT ) { |
---|
| 888 | _seterr(ROAR_ERROR_INVAL); |
---|
| 889 | return -1; |
---|
| 890 | } |
---|
| 891 | |
---|
| 892 | ROAR_VIO_SELECT_SETVIO(&(vios[len]), &(vss->vio), ((vss->flags & FLAG_DIR_IN ? ROAR_VIO_SELECT_READ : 0) | |
---|
| 893 | (vss->flags & FLAG_DIR_OUT ? ROAR_VIO_SELECT_WRITE : 0))); |
---|
| 894 | vios[len].ud.vp = &(vss->vio); |
---|
| 895 | len++; |
---|
| 896 | |
---|
| 897 | ROAR_VIO_SELECT_SETVIO(&(vios[len]), roar_get_connection_vio2(vss->con), ROAR_VIO_SELECT_READ); |
---|
| 898 | vios[len].ud.vp = vss->con; |
---|
| 899 | len++; |
---|
| 900 | |
---|
| 901 | |
---|
| 902 | // TODO: FIXME: need to do two select()s so we can sleep more efficently and test for both directions. |
---|
| 903 | // for the moment we disable file direction and hope it will not block anyway... |
---|
| 904 | /* |
---|
| 905 | if ( vss->file != NULL ) { |
---|
| 906 | ROAR_VIO_SELECT_SETVIO(&(vios[len]), vss->file, ((vss->flags & FLAG_DIR_IN ? ROAR_VIO_SELECT_WRITE : 0) | |
---|
| 907 | (vss->flags & FLAG_DIR_OUT ? ROAR_VIO_SELECT_READ : 0))); |
---|
| 908 | vios[len].ud.vp = vss->file; |
---|
| 909 | len++; |
---|
| 910 | } |
---|
| 911 | */ |
---|
| 912 | |
---|
| 913 | ret = roar_vio_select(vios, len, (wait == ROAR_VS_NOWAIT ? &rtv : NULL), NULL); |
---|
| 914 | |
---|
| 915 | // part 2 of above hack: |
---|
| 916 | // emulate read handle. |
---|
| 917 | vios[len].ud.vp = vss->file; |
---|
| 918 | vios[len].eventsa = ROAR_VIO_SELECT_WRITE|ROAR_VIO_SELECT_READ;; |
---|
| 919 | len++; |
---|
| 920 | |
---|
| 921 | // no error here nor EOF. |
---|
| 922 | if ( ret == 0 ) |
---|
| 923 | return 1; |
---|
| 924 | |
---|
| 925 | for (i = 0; i < len; i++) { |
---|
| 926 | if ( !vios[i].eventsa ) |
---|
| 927 | continue; |
---|
| 928 | |
---|
| 929 | if ( vios[i].ud.vp == &(vss->vio) ) { |
---|
| 930 | if ( vios[i].eventsa & ROAR_VIO_SELECT_READ ) |
---|
| 931 | can_read++; |
---|
| 932 | |
---|
| 933 | if ( vios[i].eventsa & ROAR_VIO_SELECT_WRITE ) { |
---|
| 934 | can_write++; |
---|
| 935 | can_flush_stream = 1; |
---|
| 936 | } |
---|
| 937 | } else if ( vios[i].ud.vp == vss->con ) { |
---|
| 938 | roar_sync(vss->con); |
---|
| 939 | } else if ( vios[i].ud.vp == vss->file ) { |
---|
| 940 | if ( vios[i].eventsa & ROAR_VIO_SELECT_READ ) |
---|
| 941 | can_write++; |
---|
| 942 | |
---|
| 943 | if ( vios[i].eventsa & ROAR_VIO_SELECT_WRITE ) { |
---|
| 944 | can_read++; |
---|
| 945 | can_flush_file = 1; |
---|
| 946 | } |
---|
| 947 | } |
---|
| 948 | } |
---|
| 949 | |
---|
| 950 | // TODO: FIXME: Need to correct error handling here! |
---|
| 951 | |
---|
| 952 | if ( can_flush_stream && vss->writebuffer != NULL ) { |
---|
| 953 | if ( roar_buffer_get_data(vss->writebuffer, &data) == -1 ) |
---|
| 954 | return -1; |
---|
| 955 | |
---|
| 956 | if ( roar_buffer_get_len(vss->writebuffer, &len) == -1 ) |
---|
| 957 | return -1; |
---|
| 958 | |
---|
| 959 | ret = roar_vs_write(vss, data, len, error); |
---|
| 960 | |
---|
| 961 | if ( ret == -1 ) { |
---|
| 962 | return -1; |
---|
| 963 | } else if ( ret == len ) { |
---|
| 964 | roar_buffer_free(vss->writebuffer); |
---|
| 965 | vss->writebuffer = NULL; |
---|
| 966 | } else { |
---|
| 967 | if ( roar_buffer_set_offset(vss->writebuffer, ret) == -1 ) |
---|
| 968 | return -1; |
---|
| 969 | } |
---|
| 970 | } |
---|
| 971 | |
---|
| 972 | if ( can_flush_file && vss->readbuffer != NULL ) { |
---|
| 973 | if ( roar_buffer_get_data(vss->readbuffer, &data) == -1 ) |
---|
| 974 | return -1; |
---|
| 975 | |
---|
| 976 | if ( roar_buffer_get_len(vss->readbuffer, &len) == -1 ) |
---|
| 977 | return -1; |
---|
| 978 | |
---|
| 979 | ret = roar_vio_write(vss->file, data, len); |
---|
| 980 | |
---|
| 981 | if ( ret == -1 ) { |
---|
| 982 | return -1; |
---|
| 983 | } else if ( ret == len ) { |
---|
| 984 | roar_buffer_free(vss->readbuffer); |
---|
| 985 | vss->readbuffer = NULL; |
---|
| 986 | } else { |
---|
| 987 | if ( roar_buffer_set_offset(vss->readbuffer, ret) == -1 ) |
---|
| 988 | return -1; |
---|
| 989 | } |
---|
| 990 | } |
---|
| 991 | |
---|
| 992 | #define _READ_SIZE 1024 |
---|
| 993 | |
---|
| 994 | if ( can_read == 2 && vss->readbuffer == NULL ) { |
---|
| 995 | if ( roar_buffer_new_data(&(vss->readbuffer), (len = _READ_SIZE), &data) == -1 ) |
---|
| 996 | return -1; |
---|
| 997 | |
---|
| 998 | ret = roar_vs_read(vss, data, len, error); |
---|
| 999 | |
---|
| 1000 | if ( ret == -1 ) { |
---|
| 1001 | roar_buffer_free(vss->readbuffer); |
---|
| 1002 | vss->readbuffer = NULL; |
---|
| 1003 | return -1; |
---|
| 1004 | } else if ( ret == 0 ) { |
---|
| 1005 | is_eof = 1; |
---|
| 1006 | roar_buffer_free(vss->readbuffer); |
---|
| 1007 | vss->readbuffer = NULL; |
---|
| 1008 | } else { |
---|
| 1009 | len = ret; |
---|
| 1010 | if ( roar_buffer_set_len(vss->readbuffer, len) == -1 ) |
---|
| 1011 | return -1; |
---|
| 1012 | |
---|
| 1013 | ret = roar_vio_write(vss->file, data, len); |
---|
| 1014 | |
---|
| 1015 | if ( ret == -1 ) { |
---|
| 1016 | return -1; |
---|
| 1017 | } else if ( ret == len ) { |
---|
| 1018 | roar_buffer_free(vss->readbuffer); |
---|
| 1019 | vss->readbuffer = NULL; |
---|
| 1020 | } else { |
---|
| 1021 | if ( roar_buffer_set_offset(vss->readbuffer, ret) == -1 ) |
---|
| 1022 | return -1; |
---|
| 1023 | } |
---|
| 1024 | } |
---|
| 1025 | } |
---|
| 1026 | |
---|
| 1027 | if ( can_write == 2 && vss->writebuffer == NULL ) { |
---|
| 1028 | if ( roar_buffer_new_data(&(vss->writebuffer), (len = _READ_SIZE), &data) == -1 ) |
---|
| 1029 | return -1; |
---|
| 1030 | |
---|
| 1031 | ret = roar_vio_read(vss->file, data, len); |
---|
| 1032 | |
---|
[4581] | 1033 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p): ret=%lli", vss, wait, error, (long long int)ret); |
---|
| 1034 | |
---|
[4580] | 1035 | if ( ret == -1 ) { |
---|
[4581] | 1036 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
| 1037 | |
---|
[4580] | 1038 | roar_buffer_free(vss->writebuffer); |
---|
[4581] | 1039 | vss->writebuffer = NULL; |
---|
[4580] | 1040 | return -1; |
---|
| 1041 | } else if ( ret == 0 ) { |
---|
[4581] | 1042 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
| 1043 | |
---|
[4580] | 1044 | is_eof = 1; |
---|
| 1045 | roar_buffer_free(vss->writebuffer); |
---|
[4581] | 1046 | vss->writebuffer = NULL; |
---|
[4580] | 1047 | } else { |
---|
[4581] | 1048 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
| 1049 | |
---|
[4580] | 1050 | if ( len != ret ) { |
---|
| 1051 | len = ret; |
---|
[4581] | 1052 | if ( roar_buffer_set_len(vss->writebuffer, len) == -1 ) |
---|
[4580] | 1053 | return -1; |
---|
| 1054 | } |
---|
| 1055 | |
---|
[4581] | 1056 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
| 1057 | |
---|
[4580] | 1058 | ret = roar_vs_write(vss, data, len, error); |
---|
| 1059 | |
---|
| 1060 | if ( ret == -1 ) { |
---|
| 1061 | return -1; |
---|
| 1062 | } else if ( ret == len ) { |
---|
| 1063 | roar_buffer_free(vss->writebuffer); |
---|
| 1064 | vss->writebuffer = NULL; |
---|
| 1065 | } else { |
---|
| 1066 | if ( roar_buffer_set_offset(vss->writebuffer, ret) == -1 ) |
---|
| 1067 | return -1; |
---|
| 1068 | } |
---|
| 1069 | } |
---|
| 1070 | } |
---|
| 1071 | |
---|
| 1072 | return is_eof ? 0 : 1; |
---|
| 1073 | } |
---|
| 1074 | |
---|
| 1075 | int roar_vs_run (roar_vs_t * vss, int * error) { |
---|
| 1076 | int ret; |
---|
| 1077 | |
---|
| 1078 | _ckvss(-1); |
---|
| 1079 | |
---|
| 1080 | while ((ret = roar_vs_iterate(vss, ROAR_VS_WAIT, error)) > 0); |
---|
| 1081 | |
---|
[4581] | 1082 | ROAR_DBG("roar_vs_run(vss=%p, error=%p): ret=%i", vss, error, ret); |
---|
| 1083 | |
---|
[4580] | 1084 | if ( ret == 0 ) { |
---|
| 1085 | // flush buffers: |
---|
| 1086 | roar_vs_iterate(vss, ROAR_VS_WAIT, error); |
---|
| 1087 | } |
---|
| 1088 | |
---|
[4581] | 1089 | if ( roar_vs_sync(vss, ROAR_VS_WAIT, error) == -1 ) |
---|
| 1090 | return -1; |
---|
| 1091 | |
---|
[4580] | 1092 | return ret; |
---|
| 1093 | } |
---|
| 1094 | |
---|
| 1095 | |
---|
[4183] | 1096 | struct roar_connection * roar_vs_connection_obj(roar_vs_t * vss, int * error) { |
---|
[4260] | 1097 | _ckvss(NULL); |
---|
| 1098 | |
---|
[4183] | 1099 | return vss->con; |
---|
| 1100 | } |
---|
| 1101 | |
---|
| 1102 | struct roar_stream * roar_vs_stream_obj (roar_vs_t * vss, int * error) { |
---|
[4260] | 1103 | _ckvss(NULL); |
---|
| 1104 | |
---|
[4183] | 1105 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 1106 | _seterr(ROAR_ERROR_INVAL); |
---|
[4186] | 1107 | return NULL; |
---|
[4183] | 1108 | } |
---|
| 1109 | |
---|
| 1110 | return &(vss->stream); |
---|
| 1111 | } |
---|
| 1112 | |
---|
| 1113 | struct roar_vio_calls * roar_vs_vio_obj (roar_vs_t * vss, int * error) { |
---|
[4260] | 1114 | _ckvss(NULL); |
---|
| 1115 | |
---|
[4183] | 1116 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
| 1117 | _seterr(ROAR_ERROR_INVAL); |
---|
[4186] | 1118 | return NULL; |
---|
[4183] | 1119 | } |
---|
| 1120 | |
---|
| 1121 | return &(vss->vio); |
---|
| 1122 | } |
---|
| 1123 | |
---|
[4173] | 1124 | //ll |
---|