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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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 | |
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42 | #define _initerr() do { errno = 0; roar_err_clear(); } while(0) |
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43 | #define _seterr(x) do { if ( error != NULL ) *error = (x); } while(0) |
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44 | #define _seterrre() do { _seterr(roar_errno); } while(0) |
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45 | #define _seterrse() do { roar_err_from_errno(); _seterr(roar_errno); } while(0) |
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46 | |
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47 | struct roar_vs { |
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48 | int flags; |
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49 | struct roar_connection con_store; |
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50 | struct roar_connection * con; |
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51 | struct roar_stream stream; |
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52 | struct roar_vio_calls vio; |
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53 | }; |
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54 | |
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55 | const char * roar_vs_strerr(int error) { |
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56 | const struct { |
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57 | int err; |
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58 | const char * msg; |
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59 | } msgs[] = { |
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60 | {ROAR_ERROR_NONE, "No error"}, |
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61 | {ROAR_ERROR_PERM, "Operation not permitted"}, |
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62 | {ROAR_ERROR_NOENT, "No such object, file or directory"}, |
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63 | {ROAR_ERROR_BADMSG, "Bad message"}, |
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64 | {ROAR_ERROR_BUSY, "Device or resource busy"}, |
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65 | {ROAR_ERROR_CONNREFUSED, "Connection refused"}, |
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66 | {ROAR_ERROR_NOSYS, "Function not implemented"}, |
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67 | {ROAR_ERROR_NOTSUP, "Operation not supported"}, |
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68 | {ROAR_ERROR_PIPE, "Broken pipe"}, |
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69 | {ROAR_ERROR_PROTO, "Protocol error"}, |
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70 | {ROAR_ERROR_RANGE, "Result too large or parameter out of range"}, |
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71 | {ROAR_ERROR_MSGSIZE, "Message too long"}, |
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72 | {ROAR_ERROR_NOMEM, "Not enough space"}, |
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73 | {ROAR_ERROR_INVAL, "Invalid argument"}, |
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74 | {-1, NULL} |
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75 | }; |
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76 | int i; |
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77 | |
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78 | for (i = 0; msgs[i].msg != NULL; i++) |
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79 | if ( msgs[i].err == error ) |
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80 | return msgs[i].msg; |
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81 | |
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82 | return "(unknown)"; |
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83 | } |
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84 | |
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85 | static roar_vs_t * roar_vs_init(int * error) { |
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86 | roar_vs_t * vss = roar_mm_malloc(sizeof(roar_vs_t)); |
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87 | |
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88 | if ( vss == NULL ) { |
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89 | _seterrse(); |
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90 | return NULL; |
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91 | } |
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92 | |
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93 | memset(vss, 0, sizeof(roar_vs_t)); |
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94 | |
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95 | return vss; |
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96 | } |
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97 | |
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98 | roar_vs_t * roar_vs_new_from_con(struct roar_connection * con, int * error) { |
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99 | roar_vs_t * vss = roar_vs_init(error); |
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100 | |
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101 | if ( vss == NULL ) |
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102 | return NULL; |
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103 | |
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104 | vss->con = con; |
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105 | |
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106 | return vss; |
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107 | } |
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108 | |
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109 | roar_vs_t * roar_vs_new(const char * server, const char * name, int * error) { |
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110 | roar_vs_t * vss = roar_vs_init(error); |
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111 | int ret; |
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112 | |
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113 | if ( vss == NULL ) |
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114 | return NULL; |
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115 | |
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116 | vss->con = &(vss->con_store); |
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117 | |
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118 | _initerr(); |
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119 | |
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120 | ret = roar_simple_connect(vss->con, (char*)server, (char*)name); |
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121 | |
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122 | if ( ret == -1 ) { |
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123 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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124 | _seterrre(); |
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125 | return NULL; |
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126 | } |
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127 | |
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128 | return vss; |
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129 | } |
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130 | |
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131 | int roar_vs_stream(roar_vs_t * vss, const struct roar_audio_info * info, int dir, int * error) { |
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132 | int ret; |
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133 | |
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134 | if ( vss->flags & FLAG_STREAM ) { |
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135 | _seterr(ROAR_ERROR_INVAL); |
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136 | return -1; |
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137 | } |
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138 | |
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139 | _initerr(); |
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140 | |
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141 | ret = roar_vio_simple_new_stream_obj(&(vss->vio), vss->con, &(vss->stream), |
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142 | info->rate, info->channels, info->bits, info->codec, |
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143 | dir |
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144 | ); |
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145 | |
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146 | if ( ret == -1 ) { |
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147 | _seterrre(); |
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148 | return -1; |
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149 | } |
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150 | |
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151 | vss->flags |= FLAG_STREAM; |
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152 | |
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153 | return 0; |
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154 | } |
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155 | |
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156 | 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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157 | roar_vs_t * vss = roar_vs_new(server, name, error); |
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158 | struct roar_audio_info info; |
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159 | int ret; |
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160 | |
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161 | if (vss == NULL) |
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162 | return NULL; |
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163 | |
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164 | memset(&info, 0, sizeof(info)); |
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165 | |
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166 | info.rate = rate; |
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167 | info.channels = channels; |
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168 | info.codec = codec; |
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169 | info.bits = bits; |
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170 | |
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171 | ret = roar_vs_stream(vss, &info, dir, error); |
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172 | |
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173 | if (ret == -1) { |
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174 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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175 | return NULL; |
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176 | } |
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177 | |
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178 | return vss; |
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179 | } |
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180 | |
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181 | int roar_vs_close(roar_vs_t * vss, int killit, int * error) { |
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182 | if ( killit != ROAR_VS_TRUE && killit != ROAR_VS_FALSE ) { |
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183 | _seterr(ROAR_ERROR_UNKNOWN); |
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184 | return -1; |
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185 | } |
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186 | |
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187 | if ( vss->flags & FLAG_STREAM ) { |
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188 | if ( killit == ROAR_VS_TRUE ) { |
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189 | roar_kick(vss->con, ROAR_OT_STREAM, roar_stream_get_id(&(vss->stream))); |
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190 | } |
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191 | |
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192 | roar_vio_close(&(vss->vio)); |
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193 | } |
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194 | |
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195 | if ( vss->con == &(vss->con_store) ) { |
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196 | roar_disconnect(vss->con); |
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197 | } |
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198 | |
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199 | roar_mm_free(vss); |
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200 | return 0; |
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201 | } |
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202 | |
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203 | ssize_t roar_vs_write(roar_vs_t * vss, const void * buf, size_t len, int * error) { |
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204 | ssize_t ret; |
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205 | |
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206 | if ( !(vss->flags & FLAG_STREAM) ) { |
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207 | _seterr(ROAR_ERROR_INVAL); |
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208 | return -1; |
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209 | } |
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210 | |
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211 | _initerr(); |
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212 | |
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213 | ret = roar_vio_write(&(vss->vio), (void*)buf, len); |
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214 | |
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215 | if ( ret == -1 ) { |
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216 | _seterrre(); |
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217 | } |
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218 | |
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219 | return ret; |
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220 | } |
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221 | |
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222 | ssize_t roar_vs_read (roar_vs_t * vss, void * buf, size_t len, int * error) { |
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223 | ssize_t ret; |
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224 | |
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225 | if ( !(vss->flags & FLAG_STREAM) ) { |
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226 | _seterr(ROAR_ERROR_INVAL); |
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227 | return -1; |
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228 | } |
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229 | |
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230 | _initerr(); |
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231 | |
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232 | ret = roar_vio_read(&(vss->vio), buf, len); |
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233 | |
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234 | if ( ret == -1 ) { |
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235 | _seterrre(); |
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236 | } |
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237 | |
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238 | return ret; |
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239 | } |
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240 | |
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241 | int roar_vs_sync (roar_vs_t * vss, int wait, int * error) { |
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242 | if ( !(vss->flags & FLAG_STREAM) ) { |
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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 ( wait != ROAR_VS_NOWAIT ) { |
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248 | _seterr(ROAR_ERROR_INVAL); |
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249 | return -1; |
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250 | } |
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251 | |
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252 | _initerr(); |
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253 | |
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254 | if ( roar_vio_sync(&(vss->vio)) == -1 ) { |
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255 | _seterrre(); |
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256 | return -1; |
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257 | } |
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258 | |
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259 | return 0; |
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260 | } |
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261 | |
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262 | int roar_vs_blocking (roar_vs_t * vss, int val, int * error) { |
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263 | int old = -1; |
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264 | |
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265 | if ( !(vss->flags & FLAG_STREAM) ) { |
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266 | _seterr(ROAR_ERROR_INVAL); |
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267 | return -1; |
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268 | } |
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269 | |
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270 | old = vss->flags & FLAG_NONBLOCK ? ROAR_VS_FALSE : ROAR_VS_TRUE; |
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271 | |
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272 | _initerr(); |
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273 | |
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274 | switch (val) { |
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275 | case ROAR_VS_TRUE: |
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276 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_BLOCK) == -1 ) { |
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277 | _seterrre(); |
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278 | return -1; |
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279 | } |
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280 | vss->flags |= FLAG_NONBLOCK; |
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281 | vss->flags -= FLAG_NONBLOCK; |
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282 | return old; |
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283 | break; |
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284 | case ROAR_VS_FALSE: |
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285 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_NONBLOCK) == -1 ) { |
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286 | _seterrre(); |
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287 | return -1; |
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288 | } |
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289 | vss->flags |= FLAG_NONBLOCK; |
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290 | return old; |
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291 | break; |
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292 | case ROAR_VS_TOGGLE: |
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293 | if ( old == ROAR_VS_TRUE ) { |
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294 | return roar_vs_blocking(vss, ROAR_VS_FALSE, error); |
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295 | } else { |
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296 | return roar_vs_blocking(vss, ROAR_VS_TRUE, error); |
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297 | } |
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298 | break; |
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299 | case ROAR_VS_ASK: |
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300 | return old; |
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301 | break; |
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302 | } |
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303 | |
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304 | _seterr(ROAR_ERROR_INVAL); |
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305 | return -1; |
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306 | } |
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307 | |
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308 | ssize_t roar_vs_latency(roar_vs_t * vss, int backend, int * error) { |
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309 | _seterr(ROAR_ERROR_NOSYS); |
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310 | return -1; |
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311 | } |
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312 | |
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313 | static int roar_vs_flag(roar_vs_t * vss, int flag, int val, int * error) { |
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314 | struct roar_stream_info info; |
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315 | int old = -1; |
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316 | |
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317 | if ( !(vss->flags & FLAG_STREAM) ) { |
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318 | _seterr(ROAR_ERROR_INVAL); |
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319 | return -1; |
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320 | } |
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321 | |
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322 | if ( val != ROAR_VS_ASK ) |
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323 | old = roar_vs_flag(vss, flag, ROAR_VS_ASK, error); |
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324 | |
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325 | _initerr(); |
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326 | |
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327 | switch (val) { |
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328 | case ROAR_VS_TRUE: |
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329 | case ROAR_VS_FALSE: |
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330 | if ( roar_stream_set_flags(vss->con, &(vss->stream), flag, |
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331 | val == ROAR_VS_TRUE ? ROAR_SET_FLAG : ROAR_RESET_FLAG) == -1 ) { |
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332 | _seterrre(); |
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333 | return -1; |
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334 | } |
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335 | return old; |
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336 | break; |
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337 | case ROAR_VS_TOGGLE: |
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338 | return roar_vs_flag(vss, flag, old == ROAR_VS_TRUE ? ROAR_VS_FALSE : ROAR_VS_TRUE, error); |
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339 | break; |
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340 | case ROAR_VS_ASK: |
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341 | if ( roar_stream_get_info(vss->con, &(vss->stream), &info) == -1 ) { |
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342 | _seterrre(); |
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343 | return -1; |
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344 | } |
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345 | return info.flags & flag ? ROAR_VS_TRUE : ROAR_VS_FALSE; |
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346 | break; |
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347 | } |
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348 | |
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349 | _seterr(ROAR_ERROR_NOTSUP); |
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350 | return -1; |
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351 | } |
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352 | |
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353 | int roar_vs_pause(roar_vs_t * vss, int val, int * error) { |
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354 | return roar_vs_flag(vss, ROAR_FLAG_PAUSE, val, error); |
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355 | } |
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356 | |
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357 | int roar_vs_mute (roar_vs_t * vss, int val, int * error) { |
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358 | return roar_vs_flag(vss, ROAR_FLAG_MUTE, val, error); |
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359 | } |
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360 | |
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361 | static int roar_vs_volume (roar_vs_t * vss, float * c, size_t channels, int * error) { |
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362 | struct roar_mixer_settings mixer; |
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363 | size_t i; |
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364 | register float s; |
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365 | int oldchannels; |
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366 | int handled; |
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367 | |
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368 | if ( !(vss->flags & FLAG_STREAM) ) { |
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369 | _seterr(ROAR_ERROR_INVAL); |
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370 | return -1; |
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371 | } |
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372 | |
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373 | if ( channels > ROAR_MAX_CHANNELS ) { |
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374 | _seterr(ROAR_ERROR_INVAL); |
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375 | return -1; |
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376 | } |
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377 | |
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378 | _initerr(); |
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379 | |
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380 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &oldchannels) == -1 ) { |
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381 | _seterrre(); |
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382 | return -1; |
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383 | } |
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384 | |
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385 | for (i = 0; i < channels; i++) { |
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386 | s = c[i] * 65535.0; |
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387 | if ( s > 66190.0 || s < -655.0 ) { |
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388 | _seterr(ROAR_ERROR_RANGE); |
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389 | return -1; |
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390 | } else if ( s > 65535.0 ) { |
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391 | s = 65535.0; |
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392 | } else if ( s < 0.0 ) { |
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393 | s = 0.0; |
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394 | } |
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395 | mixer.mixer[i] = s; |
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396 | } |
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397 | |
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398 | mixer.scale = 65535; |
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399 | |
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400 | if ( channels != oldchannels ) { |
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401 | handled = 0; |
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402 | switch (oldchannels) { |
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403 | case 1: |
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404 | if ( channels == 2 ) { |
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405 | mixer.mixer[0] = (mixer.mixer[0] + mixer.mixer[1]) / 2; |
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406 | handled = 1; |
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407 | } |
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408 | break; |
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409 | case 2: |
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410 | if ( channels == 1 ) { |
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411 | mixer.mixer[1] = mixer.mixer[0]; |
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412 | handled = 1; |
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413 | } |
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414 | break; |
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415 | case 4: |
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416 | if ( channels == 1 ) { |
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417 | mixer.mixer[1] = mixer.mixer[0]; |
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418 | mixer.mixer[2] = mixer.mixer[0]; |
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419 | mixer.mixer[3] = mixer.mixer[0]; |
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420 | handled = 1; |
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421 | } else if ( channels == 2 ) { |
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422 | mixer.mixer[2] = mixer.mixer[0]; |
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423 | mixer.mixer[3] = mixer.mixer[1]; |
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424 | handled = 1; |
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425 | } |
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426 | break; |
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427 | } |
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428 | if ( handled ) { |
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429 | channels = oldchannels; |
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430 | } else { |
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431 | _seterr(ROAR_ERROR_INVAL); |
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432 | return -1; |
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433 | } |
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434 | } |
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435 | |
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436 | if ( roar_set_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, channels) == -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 | return 0; |
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442 | } |
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443 | |
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444 | int roar_vs_volume_mono (roar_vs_t * vss, float c, int * error) { |
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445 | return roar_vs_volume(vss, &c, 1, error); |
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446 | } |
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447 | |
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448 | int roar_vs_volume_stereo (roar_vs_t * vss, float l, float r, int * error) { |
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449 | float c[2] = {l, r}; |
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450 | return roar_vs_volume(vss, c, 2, error); |
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451 | } |
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452 | |
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453 | int roar_vs_volume_get (roar_vs_t * vss, float * l, float * r, int * error) { |
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454 | struct roar_mixer_settings mixer; |
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455 | int channels; |
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456 | |
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457 | if ( vss == NULL || l == NULL || r == NULL ) { |
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458 | _seterr(ROAR_ERROR_INVAL); |
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459 | return -1; |
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460 | } |
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461 | |
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462 | if ( !(vss->flags & FLAG_STREAM) ) { |
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463 | _seterr(ROAR_ERROR_INVAL); |
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464 | return -1; |
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465 | } |
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466 | |
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467 | _initerr(); |
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468 | |
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469 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &channels) == -1 ) { |
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470 | _seterrre(); |
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471 | return -1; |
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472 | } |
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473 | |
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474 | if ( channels == 1 ) |
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475 | mixer.mixer[1] = mixer.mixer[0]; |
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476 | |
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477 | *l = mixer.mixer[0] / (float)mixer.scale; |
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478 | *r = mixer.mixer[1] / (float)mixer.scale; |
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479 | |
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480 | return 0; |
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481 | } |
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482 | |
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483 | int roar_vs_meta (roar_vs_t * vss, struct roar_keyval * kv, size_t len, int * error) { |
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484 | struct roar_meta meta; |
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485 | size_t i; |
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486 | int type; |
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487 | int ret = 0; |
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488 | |
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489 | if ( !(vss->flags & FLAG_STREAM) ) { |
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490 | _seterr(ROAR_ERROR_INVAL); |
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491 | return -1; |
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492 | } |
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493 | |
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494 | meta.type = ROAR_META_TYPE_NONE; |
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495 | meta.key[0] = 0; |
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496 | meta.value = NULL; |
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497 | |
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498 | _initerr(); |
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499 | |
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500 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_CLEAR, &meta) == -1 ) { |
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501 | _seterrre(); |
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502 | ret = -1; |
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503 | } |
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504 | |
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505 | for (i = 0; i < len; i++) { |
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506 | type = roar_meta_inttype(kv[i].key); |
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507 | meta.type = type; |
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508 | meta.value = kv[i].value; |
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509 | |
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510 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_ADD, &meta) == -1 ) { |
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511 | _seterrre(); |
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512 | ret = -1; |
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513 | } |
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514 | } |
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515 | |
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516 | meta.type = ROAR_META_TYPE_NONE; |
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517 | meta.key[0] = 0; |
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518 | meta.value = NULL; |
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519 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_FINALIZE, &meta) == -1 ) { |
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520 | _seterrre(); |
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521 | ret = -1; |
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522 | } |
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523 | |
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524 | return ret; |
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525 | } |
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526 | |
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527 | struct roar_connection * roar_vs_connection_obj(roar_vs_t * vss, int * error) { |
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528 | return vss->con; |
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529 | } |
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530 | |
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531 | struct roar_stream * roar_vs_stream_obj (roar_vs_t * vss, int * error) { |
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532 | if ( !(vss->flags & FLAG_STREAM) ) { |
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533 | _seterr(ROAR_ERROR_INVAL); |
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534 | return NULL; |
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535 | } |
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536 | |
---|
537 | return &(vss->stream); |
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538 | } |
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539 | |
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540 | struct roar_vio_calls * roar_vs_vio_obj (roar_vs_t * vss, int * error) { |
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541 | if ( !(vss->flags & FLAG_STREAM) ) { |
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542 | _seterr(ROAR_ERROR_INVAL); |
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543 | return NULL; |
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544 | } |
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545 | |
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546 | return &(vss->vio); |
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547 | } |
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548 | |
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549 | //ll |
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