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 | #define FLAG_BUFFERED 0x0004 |
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42 | |
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43 | #define _initerr() do { errno = 0; roar_err_clear(); } while(0) |
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44 | #define _seterr(x) do { if ( error != NULL ) *error = (x); } while(0) |
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45 | #define _seterrre() do { _seterr(roar_errno); } while(0) |
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46 | #define _seterrse() do { roar_err_from_errno(); _seterr(roar_errno); } while(0) |
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47 | #define _ckvss(ret) do { if ( vss == NULL ) { _seterr(ROAR_ERROR_INVAL); return (ret); } } while(0) |
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48 | |
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49 | struct roar_vs { |
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50 | int flags; |
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51 | struct roar_connection con_store; |
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52 | struct roar_connection * con; |
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53 | struct roar_stream stream; |
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54 | struct roar_vio_calls vio; |
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55 | struct roar_audio_info info; |
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56 | size_t readc, writec; |
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57 | int mixerid; |
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58 | int first_primid; |
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59 | }; |
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60 | |
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61 | static int _roar_vs_find_first_prim(roar_vs_t * vss); |
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62 | |
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63 | const char * roar_vs_strerr(int error) { |
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64 | const struct { |
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65 | int err; |
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66 | const char * msg; |
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67 | } msgs[] = { |
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68 | {ROAR_ERROR_NONE, "No error"}, |
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69 | {ROAR_ERROR_PERM, "Operation not permitted"}, |
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70 | {ROAR_ERROR_NOENT, "No such object, file or directory"}, |
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71 | {ROAR_ERROR_BADMSG, "Bad message"}, |
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72 | {ROAR_ERROR_BUSY, "Device or resource busy"}, |
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73 | {ROAR_ERROR_CONNREFUSED, "Connection refused"}, |
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74 | {ROAR_ERROR_NOSYS, "Function not implemented"}, |
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75 | {ROAR_ERROR_NOTSUP, "Operation not supported"}, |
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76 | {ROAR_ERROR_PIPE, "Broken pipe"}, |
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77 | {ROAR_ERROR_PROTO, "Protocol error"}, |
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78 | {ROAR_ERROR_RANGE, "Result too large or parameter out of range"}, |
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79 | {ROAR_ERROR_MSGSIZE, "Message too long"}, |
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80 | {ROAR_ERROR_NOMEM, "Not enough space"}, |
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81 | {ROAR_ERROR_INVAL, "Invalid argument"}, |
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82 | {-1, NULL} |
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83 | }; |
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84 | int i; |
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85 | |
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86 | for (i = 0; msgs[i].msg != NULL; i++) |
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87 | if ( msgs[i].err == error ) |
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88 | return msgs[i].msg; |
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89 | |
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90 | return "(unknown)"; |
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91 | } |
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92 | |
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93 | static roar_vs_t * roar_vs_init(int * error) { |
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94 | roar_vs_t * vss = roar_mm_malloc(sizeof(roar_vs_t)); |
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95 | |
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96 | if ( vss == NULL ) { |
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97 | _seterrse(); |
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98 | return NULL; |
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99 | } |
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100 | |
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101 | memset(vss, 0, sizeof(roar_vs_t)); |
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102 | |
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103 | vss->mixerid = -1; |
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104 | vss->first_primid = -1; |
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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_from_con(struct roar_connection * con, int * error) { |
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110 | roar_vs_t * vss = roar_vs_init(error); |
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111 | |
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112 | if ( vss == NULL ) |
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113 | return NULL; |
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114 | |
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115 | vss->con = con; |
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116 | |
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117 | return vss; |
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118 | } |
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119 | |
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120 | roar_vs_t * roar_vs_new(const char * server, const char * name, int * error) { |
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121 | roar_vs_t * vss = roar_vs_init(error); |
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122 | int ret; |
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123 | |
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124 | if ( vss == NULL ) |
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125 | return NULL; |
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126 | |
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127 | vss->con = &(vss->con_store); |
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128 | |
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129 | _initerr(); |
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130 | |
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131 | ret = roar_simple_connect(vss->con, (char*)server, (char*)name); |
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132 | |
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133 | if ( ret == -1 ) { |
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134 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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135 | _seterrre(); |
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136 | return NULL; |
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137 | } |
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138 | |
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139 | return vss; |
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140 | } |
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141 | |
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142 | int roar_vs_stream(roar_vs_t * vss, const struct roar_audio_info * info, int dir, int * error) { |
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143 | struct roar_stream_info sinfo; |
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144 | int ret; |
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145 | |
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146 | _ckvss(-1); |
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147 | |
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148 | if ( vss->flags & FLAG_STREAM ) { |
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149 | _seterr(ROAR_ERROR_INVAL); |
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150 | return -1; |
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151 | } |
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152 | |
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153 | _initerr(); |
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154 | |
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155 | if ( info != &(vss->info) ) |
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156 | memcpy(&(vss->info), info, sizeof(struct roar_audio_info)); |
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157 | |
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158 | ret = roar_vio_simple_new_stream_obj(&(vss->vio), vss->con, &(vss->stream), |
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159 | info->rate, info->channels, info->bits, info->codec, |
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160 | dir |
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161 | ); |
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162 | |
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163 | if ( ret == -1 ) { |
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164 | _seterrre(); |
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165 | return -1; |
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166 | } |
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167 | |
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168 | if ( roar_stream_get_info(vss->con, &(vss->stream), &sinfo) != -1 ) { |
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169 | vss->mixerid = sinfo.mixer; |
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170 | _roar_vs_find_first_prim(vss); |
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171 | } |
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172 | |
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173 | vss->flags |= FLAG_STREAM; |
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174 | |
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175 | return 0; |
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176 | } |
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177 | |
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178 | 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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179 | roar_vs_t * vss = roar_vs_new(server, name, error); |
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180 | int ret; |
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181 | |
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182 | if (vss == NULL) |
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183 | return NULL; |
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184 | |
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185 | memset(&(vss->info), 0, sizeof(vss->info)); |
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186 | |
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187 | vss->info.rate = rate; |
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188 | vss->info.channels = channels; |
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189 | vss->info.codec = codec; |
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190 | vss->info.bits = bits; |
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191 | |
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192 | ret = roar_vs_stream(vss, &(vss->info), dir, error); |
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193 | |
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194 | if (ret == -1) { |
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195 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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196 | return NULL; |
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197 | } |
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198 | |
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199 | return vss; |
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200 | } |
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201 | |
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202 | int roar_vs_close(roar_vs_t * vss, int killit, int * error) { |
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203 | if ( killit != ROAR_VS_TRUE && killit != ROAR_VS_FALSE ) { |
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204 | _seterr(ROAR_ERROR_UNKNOWN); |
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205 | return -1; |
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206 | } |
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207 | |
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208 | _ckvss(-1); |
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209 | |
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210 | if ( vss->flags & FLAG_STREAM ) { |
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211 | if ( killit == ROAR_VS_TRUE ) { |
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212 | roar_kick(vss->con, ROAR_OT_STREAM, roar_stream_get_id(&(vss->stream))); |
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213 | } |
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214 | |
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215 | roar_vio_close(&(vss->vio)); |
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216 | } |
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217 | |
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218 | if ( vss->con == &(vss->con_store) ) { |
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219 | roar_disconnect(vss->con); |
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220 | } |
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221 | |
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222 | roar_mm_free(vss); |
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223 | return 0; |
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224 | } |
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225 | |
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226 | ssize_t roar_vs_write(roar_vs_t * vss, const void * buf, size_t len, int * error) { |
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227 | ssize_t ret; |
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228 | |
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229 | _ckvss(-1); |
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230 | |
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231 | if ( !(vss->flags & FLAG_STREAM) ) { |
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232 | _seterr(ROAR_ERROR_INVAL); |
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233 | return -1; |
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234 | } |
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235 | |
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236 | _initerr(); |
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237 | |
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238 | ret = roar_vio_write(&(vss->vio), (void*)buf, len); |
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239 | |
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240 | if ( ret == -1 ) { |
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241 | #ifdef EAGAIN |
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242 | if ( errno == EAGAIN ) |
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243 | return 0; |
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244 | #endif |
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245 | |
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246 | #ifdef EWOULDBLOCK |
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247 | if ( errno == EWOULDBLOCK ) |
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248 | return 0; |
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249 | #endif |
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250 | |
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251 | _seterrre(); |
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252 | } else { |
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253 | vss->writec += ret; |
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254 | } |
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255 | |
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256 | return ret; |
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257 | } |
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258 | |
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259 | ssize_t roar_vs_read (roar_vs_t * vss, void * buf, size_t len, int * error) { |
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260 | ssize_t ret; |
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261 | |
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262 | _ckvss(-1); |
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263 | |
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264 | if ( !(vss->flags & FLAG_STREAM) ) { |
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265 | _seterr(ROAR_ERROR_INVAL); |
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266 | return -1; |
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267 | } |
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268 | |
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269 | _initerr(); |
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270 | |
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271 | ret = roar_vio_read(&(vss->vio), buf, len); |
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272 | |
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273 | if ( ret == -1 ) { |
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274 | _seterrre(); |
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275 | } else { |
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276 | vss->readc += ret; |
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277 | } |
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278 | |
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279 | return ret; |
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280 | } |
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281 | |
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282 | int roar_vs_sync (roar_vs_t * vss, int wait, int * error) { |
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283 | _ckvss(-1); |
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284 | |
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285 | if ( !(vss->flags & FLAG_STREAM) ) { |
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286 | _seterr(ROAR_ERROR_INVAL); |
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287 | return -1; |
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288 | } |
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289 | |
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290 | if ( wait != ROAR_VS_NOWAIT ) { |
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291 | _seterr(ROAR_ERROR_INVAL); |
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292 | return -1; |
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293 | } |
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294 | |
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295 | _initerr(); |
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296 | |
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297 | if ( roar_vio_sync(&(vss->vio)) == -1 ) { |
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298 | _seterrre(); |
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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 | int roar_vs_blocking (roar_vs_t * vss, int val, int * error) { |
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306 | int old = -1; |
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307 | |
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308 | _ckvss(-1); |
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309 | |
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310 | if ( !(vss->flags & FLAG_STREAM) ) { |
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311 | _seterr(ROAR_ERROR_INVAL); |
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312 | return -1; |
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313 | } |
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314 | |
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315 | old = vss->flags & FLAG_NONBLOCK ? ROAR_VS_FALSE : ROAR_VS_TRUE; |
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316 | |
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317 | _initerr(); |
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318 | |
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319 | switch (val) { |
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320 | case ROAR_VS_TRUE: |
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321 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_BLOCK) == -1 ) { |
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322 | _seterrre(); |
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323 | return -1; |
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324 | } |
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325 | vss->flags |= FLAG_NONBLOCK; |
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326 | vss->flags -= FLAG_NONBLOCK; |
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327 | return old; |
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328 | break; |
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329 | case ROAR_VS_FALSE: |
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330 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_NONBLOCK) == -1 ) { |
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331 | _seterrre(); |
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332 | return -1; |
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333 | } |
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334 | vss->flags |= FLAG_NONBLOCK; |
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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 | if ( old == ROAR_VS_TRUE ) { |
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339 | return roar_vs_blocking(vss, ROAR_VS_FALSE, error); |
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340 | } else { |
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341 | return roar_vs_blocking(vss, ROAR_VS_TRUE, error); |
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342 | } |
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343 | break; |
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344 | case ROAR_VS_ASK: |
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345 | return old; |
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346 | break; |
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347 | } |
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348 | |
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349 | _seterr(ROAR_ERROR_INVAL); |
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350 | return -1; |
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351 | } |
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352 | |
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353 | static int _roar_vs_find_first_prim(roar_vs_t * vss) { |
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354 | struct roar_stream stream; |
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355 | struct roar_stream_info info; |
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356 | int id[ROAR_STREAMS_MAX]; |
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357 | int num; |
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358 | int i; |
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359 | |
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360 | if ( vss->first_primid != -1 ) |
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361 | return vss->first_primid; |
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362 | |
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363 | if ( vss->mixerid == -1 ) |
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364 | return -1; |
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365 | |
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366 | if ( (num = roar_list_streams(vss->con, id, ROAR_STREAMS_MAX)) == -1 ) { |
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367 | return -1; |
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368 | } |
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369 | |
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370 | for (i = 0; i < num; i++) { |
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371 | if ( roar_get_stream(vss->con, &stream, id[i]) == -1 ) |
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372 | continue; |
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373 | |
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374 | if ( stream.dir != ROAR_DIR_OUTPUT ) |
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375 | continue; |
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376 | |
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377 | if ( roar_stream_get_info(vss->con, &stream, &info) == -1 ) |
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378 | continue; |
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379 | |
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380 | if ( info.mixer == vss->mixerid ) { |
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381 | vss->first_primid = id[i]; |
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382 | return id[i]; |
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383 | } |
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384 | } |
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385 | |
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386 | return -1; |
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387 | } |
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388 | |
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389 | ssize_t roar_vs_position(roar_vs_t * vss, int backend, int * error) { |
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390 | struct roar_stream stream; |
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391 | struct roar_stream out_stream; |
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392 | struct roar_stream_info out_info; |
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393 | size_t offset; |
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394 | |
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395 | _ckvss(-1); |
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396 | |
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397 | if ( !(vss->flags & FLAG_STREAM) ) { |
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398 | _seterr(ROAR_ERROR_INVAL); |
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399 | return -1; |
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400 | } |
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401 | |
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402 | _initerr(); |
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403 | |
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404 | if ( roar_get_stream(vss->con, &stream, roar_stream_get_id(&(vss->stream))) == -1 ) { |
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405 | _seterrre(); |
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406 | return -1; |
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407 | } |
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408 | |
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409 | switch (backend) { |
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410 | case ROAR_VS_BACKEND_NONE: |
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411 | return stream.pos; |
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412 | break; |
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413 | case ROAR_VS_BACKEND_FIRST: |
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414 | // _roar_vs_find_first_prim(vss); |
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415 | if ( vss->first_primid == -1 ) { |
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416 | _seterr(ROAR_ERROR_UNKNOWN); |
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417 | return -1; |
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418 | } |
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419 | |
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420 | roar_stream_new_by_id(&out_stream, vss->first_primid); |
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421 | |
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422 | if ( roar_stream_get_info(vss->con, &out_stream, &out_info) == -1 ) { |
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423 | _seterrre(); |
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424 | return -1; |
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425 | } |
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426 | |
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427 | offset = out_info.delay * vss->info.rate; |
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428 | offset /= 1000000; |
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429 | |
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430 | return stream.pos + offset; |
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431 | break; |
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432 | default: |
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433 | _seterr(ROAR_ERROR_NOTSUP); |
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434 | return -1; |
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435 | break; |
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436 | } |
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437 | |
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438 | _seterr(ROAR_ERROR_NOSYS); |
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439 | return -1; |
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440 | } |
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441 | |
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442 | roar_mus_t roar_vs_latency(roar_vs_t * vss, int backend, int * error) { |
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443 | ssize_t pos = roar_vs_position(vss, backend, error); |
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444 | ssize_t bps; // byte per sample |
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445 | size_t lioc; // local IO (byte) counter |
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446 | size_t lpos; // local possition |
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447 | roar_mus_t lag; |
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448 | |
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449 | _initerr(); |
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450 | |
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451 | _ckvss(-1); |
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452 | |
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453 | if (pos == -1) { |
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454 | _seterrre(); |
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455 | return 0; |
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456 | } |
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457 | |
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458 | if ( !(vss->flags & FLAG_STREAM) ) { |
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459 | _seterr(ROAR_ERROR_INVAL); |
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460 | return 0; |
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461 | } |
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462 | |
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463 | if ( vss->writec == 0 ) { |
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464 | lioc = vss->readc; |
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465 | } else { |
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466 | lioc = vss->writec; |
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467 | } |
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468 | |
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469 | bps = roar_info2samplesize(&(vss->info)); |
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470 | |
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471 | if ( bps == -1 ) { |
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472 | _seterrre(); |
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473 | return 0; |
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474 | } |
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475 | |
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476 | lpos = lioc / bps; |
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477 | |
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478 | lag = (roar_mus_t)lpos - (roar_mus_t)pos; |
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479 | |
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480 | // we now have the lag in frames |
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481 | // return value are ms |
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482 | // so we need to multiply with 1s/ms and |
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483 | // multiply by 1/rate |
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484 | |
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485 | lag *= 1000000; // 1s/ms |
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486 | lag /= vss->info.rate; |
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487 | |
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488 | if ( lag == 0 ) { |
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489 | _seterr(ROAR_ERROR_NONE); |
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490 | } |
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491 | |
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492 | return lag; |
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493 | } |
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494 | |
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495 | static int roar_vs_flag(roar_vs_t * vss, int flag, int val, int * error) { |
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496 | struct roar_stream_info info; |
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497 | int old = -1; |
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498 | |
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499 | _ckvss(-1); |
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500 | |
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501 | if ( !(vss->flags & FLAG_STREAM) ) { |
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502 | _seterr(ROAR_ERROR_INVAL); |
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503 | return -1; |
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504 | } |
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505 | |
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506 | if ( val != ROAR_VS_ASK ) |
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507 | old = roar_vs_flag(vss, flag, ROAR_VS_ASK, error); |
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508 | |
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509 | _initerr(); |
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510 | |
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511 | switch (val) { |
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512 | case ROAR_VS_TRUE: |
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513 | case ROAR_VS_FALSE: |
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514 | if ( roar_stream_set_flags(vss->con, &(vss->stream), flag, |
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515 | val == ROAR_VS_TRUE ? ROAR_SET_FLAG : ROAR_RESET_FLAG) == -1 ) { |
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516 | _seterrre(); |
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517 | return -1; |
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518 | } |
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519 | return old; |
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520 | break; |
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521 | case ROAR_VS_TOGGLE: |
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522 | return roar_vs_flag(vss, flag, old == ROAR_VS_TRUE ? ROAR_VS_FALSE : ROAR_VS_TRUE, error); |
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523 | break; |
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524 | case ROAR_VS_ASK: |
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525 | if ( roar_stream_get_info(vss->con, &(vss->stream), &info) == -1 ) { |
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526 | _seterrre(); |
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527 | return -1; |
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528 | } |
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529 | return info.flags & flag ? ROAR_VS_TRUE : ROAR_VS_FALSE; |
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530 | break; |
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531 | } |
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532 | |
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533 | _seterr(ROAR_ERROR_INVAL); |
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534 | return -1; |
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535 | } |
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536 | |
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537 | int roar_vs_pause(roar_vs_t * vss, int val, int * error) { |
---|
538 | return roar_vs_flag(vss, ROAR_FLAG_PAUSE, val, error); |
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539 | } |
---|
540 | |
---|
541 | int roar_vs_mute (roar_vs_t * vss, int val, int * error) { |
---|
542 | return roar_vs_flag(vss, ROAR_FLAG_MUTE, val, error); |
---|
543 | } |
---|
544 | |
---|
545 | static int roar_vs_volume (roar_vs_t * vss, float * c, size_t channels, int * error) { |
---|
546 | struct roar_mixer_settings mixer; |
---|
547 | size_t i; |
---|
548 | register float s; |
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549 | int oldchannels; |
---|
550 | int handled; |
---|
551 | |
---|
552 | _ckvss(-1); |
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553 | |
---|
554 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
555 | _seterr(ROAR_ERROR_INVAL); |
---|
556 | return -1; |
---|
557 | } |
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558 | |
---|
559 | if ( channels > ROAR_MAX_CHANNELS ) { |
---|
560 | _seterr(ROAR_ERROR_INVAL); |
---|
561 | return -1; |
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562 | } |
---|
563 | |
---|
564 | _initerr(); |
---|
565 | |
---|
566 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &oldchannels) == -1 ) { |
---|
567 | _seterrre(); |
---|
568 | return -1; |
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569 | } |
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570 | |
---|
571 | for (i = 0; i < channels; i++) { |
---|
572 | s = c[i] * 65535.0; |
---|
573 | if ( s > 66190.0 || s < -655.0 ) { |
---|
574 | _seterr(ROAR_ERROR_RANGE); |
---|
575 | return -1; |
---|
576 | } else if ( s > 65535.0 ) { |
---|
577 | s = 65535.0; |
---|
578 | } else if ( s < 0.0 ) { |
---|
579 | s = 0.0; |
---|
580 | } |
---|
581 | mixer.mixer[i] = s; |
---|
582 | } |
---|
583 | |
---|
584 | mixer.scale = 65535; |
---|
585 | |
---|
586 | if ( channels != oldchannels ) { |
---|
587 | handled = 0; |
---|
588 | switch (oldchannels) { |
---|
589 | case 1: |
---|
590 | if ( channels == 2 ) { |
---|
591 | mixer.mixer[0] = (mixer.mixer[0] + mixer.mixer[1]) / 2; |
---|
592 | handled = 1; |
---|
593 | } |
---|
594 | break; |
---|
595 | case 2: |
---|
596 | if ( channels == 1 ) { |
---|
597 | mixer.mixer[1] = mixer.mixer[0]; |
---|
598 | handled = 1; |
---|
599 | } |
---|
600 | break; |
---|
601 | case 4: |
---|
602 | if ( channels == 1 ) { |
---|
603 | mixer.mixer[1] = mixer.mixer[0]; |
---|
604 | mixer.mixer[2] = mixer.mixer[0]; |
---|
605 | mixer.mixer[3] = mixer.mixer[0]; |
---|
606 | handled = 1; |
---|
607 | } else if ( channels == 2 ) { |
---|
608 | mixer.mixer[2] = mixer.mixer[0]; |
---|
609 | mixer.mixer[3] = mixer.mixer[1]; |
---|
610 | handled = 1; |
---|
611 | } |
---|
612 | break; |
---|
613 | } |
---|
614 | if ( handled ) { |
---|
615 | channels = oldchannels; |
---|
616 | } else { |
---|
617 | _seterr(ROAR_ERROR_INVAL); |
---|
618 | return -1; |
---|
619 | } |
---|
620 | } |
---|
621 | |
---|
622 | if ( roar_set_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, channels) == -1 ) { |
---|
623 | _seterrre(); |
---|
624 | return -1; |
---|
625 | } |
---|
626 | |
---|
627 | return 0; |
---|
628 | } |
---|
629 | |
---|
630 | int roar_vs_volume_mono (roar_vs_t * vss, float c, int * error) { |
---|
631 | return roar_vs_volume(vss, &c, 1, error); |
---|
632 | } |
---|
633 | |
---|
634 | int roar_vs_volume_stereo (roar_vs_t * vss, float l, float r, int * error) { |
---|
635 | float c[2] = {l, r}; |
---|
636 | return roar_vs_volume(vss, c, 2, error); |
---|
637 | } |
---|
638 | |
---|
639 | int roar_vs_volume_get (roar_vs_t * vss, float * l, float * r, int * error) { |
---|
640 | struct roar_mixer_settings mixer; |
---|
641 | int channels; |
---|
642 | |
---|
643 | if ( vss == NULL || l == NULL || r == NULL ) { |
---|
644 | _seterr(ROAR_ERROR_INVAL); |
---|
645 | return -1; |
---|
646 | } |
---|
647 | |
---|
648 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
649 | _seterr(ROAR_ERROR_INVAL); |
---|
650 | return -1; |
---|
651 | } |
---|
652 | |
---|
653 | _initerr(); |
---|
654 | |
---|
655 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &channels) == -1 ) { |
---|
656 | _seterrre(); |
---|
657 | return -1; |
---|
658 | } |
---|
659 | |
---|
660 | if ( channels == 1 ) |
---|
661 | mixer.mixer[1] = mixer.mixer[0]; |
---|
662 | |
---|
663 | *l = mixer.mixer[0] / (float)mixer.scale; |
---|
664 | *r = mixer.mixer[1] / (float)mixer.scale; |
---|
665 | |
---|
666 | return 0; |
---|
667 | } |
---|
668 | |
---|
669 | int roar_vs_meta (roar_vs_t * vss, struct roar_keyval * kv, size_t len, int * error) { |
---|
670 | struct roar_meta meta; |
---|
671 | size_t i; |
---|
672 | int type; |
---|
673 | int ret = 0; |
---|
674 | |
---|
675 | _ckvss(-1); |
---|
676 | |
---|
677 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
678 | _seterr(ROAR_ERROR_INVAL); |
---|
679 | return -1; |
---|
680 | } |
---|
681 | |
---|
682 | meta.type = ROAR_META_TYPE_NONE; |
---|
683 | meta.key[0] = 0; |
---|
684 | meta.value = NULL; |
---|
685 | |
---|
686 | _initerr(); |
---|
687 | |
---|
688 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_CLEAR, &meta) == -1 ) { |
---|
689 | _seterrre(); |
---|
690 | ret = -1; |
---|
691 | } |
---|
692 | |
---|
693 | for (i = 0; i < len; i++) { |
---|
694 | type = roar_meta_inttype(kv[i].key); |
---|
695 | meta.type = type; |
---|
696 | meta.value = kv[i].value; |
---|
697 | |
---|
698 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_ADD, &meta) == -1 ) { |
---|
699 | _seterrre(); |
---|
700 | ret = -1; |
---|
701 | } |
---|
702 | } |
---|
703 | |
---|
704 | meta.type = ROAR_META_TYPE_NONE; |
---|
705 | meta.key[0] = 0; |
---|
706 | meta.value = NULL; |
---|
707 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_FINALIZE, &meta) == -1 ) { |
---|
708 | _seterrre(); |
---|
709 | ret = -1; |
---|
710 | } |
---|
711 | |
---|
712 | return ret; |
---|
713 | } |
---|
714 | |
---|
715 | int roar_vs_role (roar_vs_t * vss, int role, int * error) { |
---|
716 | _ckvss(-1); |
---|
717 | |
---|
718 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
719 | _seterr(ROAR_ERROR_INVAL); |
---|
720 | return -1; |
---|
721 | } |
---|
722 | |
---|
723 | _initerr(); |
---|
724 | |
---|
725 | if ( roar_stream_set_role(vss->con, &(vss->stream), role) == -1 ) { |
---|
726 | _seterrre(); |
---|
727 | return -1; |
---|
728 | } |
---|
729 | |
---|
730 | return 0; |
---|
731 | } |
---|
732 | |
---|
733 | struct roar_connection * roar_vs_connection_obj(roar_vs_t * vss, int * error) { |
---|
734 | _ckvss(NULL); |
---|
735 | |
---|
736 | return vss->con; |
---|
737 | } |
---|
738 | |
---|
739 | struct roar_stream * roar_vs_stream_obj (roar_vs_t * vss, int * error) { |
---|
740 | _ckvss(NULL); |
---|
741 | |
---|
742 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
743 | _seterr(ROAR_ERROR_INVAL); |
---|
744 | return NULL; |
---|
745 | } |
---|
746 | |
---|
747 | return &(vss->stream); |
---|
748 | } |
---|
749 | |
---|
750 | struct roar_vio_calls * roar_vs_vio_obj (roar_vs_t * vss, int * error) { |
---|
751 | _ckvss(NULL); |
---|
752 | |
---|
753 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
754 | _seterr(ROAR_ERROR_INVAL); |
---|
755 | return NULL; |
---|
756 | } |
---|
757 | |
---|
758 | return &(vss->vio); |
---|
759 | } |
---|
760 | |
---|
761 | //ll |
---|