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 - 2010-2011 |
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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 | #if defined(ROAR_HAVE_GETSOCKOPT) && defined(ROAR_HAVE_SETSOCKOPT) |
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39 | #define _HAVE_SOCKOPT |
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40 | #endif |
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41 | |
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42 | #define FLAG_NONE 0x0000 |
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43 | #define FLAG_STREAM 0x0001 |
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44 | #define FLAG_NONBLOCK 0x0002 |
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45 | #define FLAG_BUFFERED 0x0004 |
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46 | #define FLAG_CLOSEFILE 0x0008 |
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47 | #define FLAG_DIR_IN 0x1000 |
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48 | #define FLAG_DIR_OUT 0x2000 |
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49 | |
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50 | #define _initerr() do { errno = 0; roar_err_clear(); } while(0) |
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51 | #define _seterr(x) do { if ( error != NULL ) *error = (x); ROAR_DBG("roar_vs_*(*): *error=%s(%i)", roar_vs_strerr((x)), (x)); } while(0) |
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52 | #define _seterrre() do { _seterr(roar_errno); } while(0) |
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53 | #define _seterrse() do { roar_err_from_errno(); _seterr(roar_errno); } while(0) |
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54 | #define _ckvss(ret) do { if ( vss == NULL ) { _seterr(ROAR_ERROR_INVAL); return (ret); } } while(0) |
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55 | |
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56 | struct roar_vs { |
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57 | int flags; |
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58 | struct roar_connection con_store; |
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59 | struct roar_connection * con; |
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60 | struct roar_stream stream; |
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61 | struct roar_vio_calls vio; |
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62 | struct roar_audio_info info; |
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63 | size_t readc, writec; |
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64 | int mixerid; |
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65 | int first_primid; |
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66 | struct roar_buffer * readbuffer, * writebuffer; |
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67 | struct roar_vio_calls file_store; |
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68 | struct roar_vio_calls * file; |
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69 | struct roar_buffer * readring, * writering; |
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70 | #ifdef _HAVE_SOCKOPT |
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71 | struct { |
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72 | float target; |
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73 | float window; |
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74 | float minlag; |
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75 | float p; |
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76 | } latc; |
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77 | #endif |
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78 | }; |
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79 | |
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80 | static int _roar_vs_find_first_prim(roar_vs_t * vss); |
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81 | |
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82 | const char * roar_vs_strerr(int error) { |
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83 | const struct { |
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84 | int err; |
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85 | const char * msg; |
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86 | } msgs[] = { |
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87 | {ROAR_ERROR_NONE, "No error"}, |
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88 | {ROAR_ERROR_PERM, "Operation not permitted"}, |
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89 | {ROAR_ERROR_NOENT, "No such object, file or directory"}, |
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90 | {ROAR_ERROR_BADMSG, "Bad message"}, |
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91 | {ROAR_ERROR_BUSY, "Device or resource busy"}, |
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92 | {ROAR_ERROR_CONNREFUSED, "Connection refused"}, |
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93 | {ROAR_ERROR_NOSYS, "Function not implemented"}, |
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94 | {ROAR_ERROR_NOTSUP, "Operation not supported"}, |
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95 | {ROAR_ERROR_PIPE, "Broken pipe"}, |
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96 | {ROAR_ERROR_PROTO, "Protocol error"}, |
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97 | {ROAR_ERROR_RANGE, "Result too large or parameter out of range"}, |
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98 | {ROAR_ERROR_MSGSIZE, "Message too long"}, |
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99 | {ROAR_ERROR_NOMEM, "Not enough space"}, |
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100 | {ROAR_ERROR_INVAL, "Invalid argument"}, |
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101 | {-1, NULL} |
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102 | }; |
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103 | int i; |
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104 | |
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105 | for (i = 0; msgs[i].msg != NULL; i++) |
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106 | if ( msgs[i].err == error ) |
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107 | return msgs[i].msg; |
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108 | |
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109 | return "(unknown)"; |
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110 | } |
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111 | |
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112 | static roar_vs_t * roar_vs_init(int * error) { |
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113 | roar_vs_t * vss = roar_mm_malloc(sizeof(roar_vs_t)); |
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114 | |
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115 | if ( vss == NULL ) { |
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116 | _seterrse(); |
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117 | return NULL; |
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118 | } |
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119 | |
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120 | memset(vss, 0, sizeof(roar_vs_t)); |
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121 | |
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122 | vss->mixerid = -1; |
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123 | vss->first_primid = -1; |
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124 | |
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125 | #ifdef _HAVE_SOCKOPT |
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126 | vss->latc.target = -2.; // must be less than latc.minlag! |
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127 | vss->latc.window = -1.; |
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128 | vss->latc.minlag = -1.; |
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129 | vss->latc.p = 0.005; |
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130 | #endif |
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131 | |
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132 | return vss; |
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133 | } |
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134 | |
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135 | roar_vs_t * roar_vs_new_from_con(struct roar_connection * con, int * error) { |
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136 | roar_vs_t * vss = roar_vs_init(error); |
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137 | |
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138 | if ( vss == NULL ) |
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139 | return NULL; |
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140 | |
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141 | vss->con = con; |
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142 | |
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143 | return vss; |
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144 | } |
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145 | |
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146 | roar_vs_t * roar_vs_new(const char * server, const char * name, int * error) { |
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147 | roar_vs_t * vss = roar_vs_init(error); |
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148 | int ret; |
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149 | |
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150 | if ( vss == NULL ) |
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151 | return NULL; |
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152 | |
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153 | vss->con = &(vss->con_store); |
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154 | |
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155 | _initerr(); |
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156 | |
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157 | ret = roar_simple_connect(vss->con, (char*)server, (char*)name); |
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158 | |
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159 | if ( ret == -1 ) { |
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160 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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161 | _seterrre(); |
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162 | return NULL; |
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163 | } |
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164 | |
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165 | return vss; |
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166 | } |
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167 | |
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168 | int roar_vs_stream(roar_vs_t * vss, const struct roar_audio_info * info, int dir, int * error) { |
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169 | struct roar_stream_info sinfo; |
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170 | int ret; |
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171 | |
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172 | _ckvss(-1); |
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173 | |
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174 | if ( vss->flags & FLAG_STREAM ) { |
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175 | _seterr(ROAR_ERROR_INVAL); |
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176 | return -1; |
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177 | } |
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178 | |
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179 | _initerr(); |
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180 | |
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181 | if ( info != &(vss->info) ) |
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182 | memcpy(&(vss->info), info, sizeof(struct roar_audio_info)); |
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183 | |
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184 | ret = roar_vio_simple_new_stream_obj(&(vss->vio), vss->con, &(vss->stream), |
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185 | info->rate, info->channels, info->bits, info->codec, |
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186 | dir |
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187 | ); |
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188 | |
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189 | if ( ret == -1 ) { |
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190 | _seterrre(); |
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191 | return -1; |
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192 | } |
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193 | |
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194 | if ( roar_stream_get_info(vss->con, &(vss->stream), &sinfo) != -1 ) { |
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195 | // TODO: fix this: |
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196 | // as we currently do not support to select mixer we just check if we hit the |
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197 | // right one. |
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198 | if ( vss->mixerid != -1 && vss->mixerid != sinfo.mixer ) { |
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199 | _seterr(ROAR_ERROR_INVAL); // TODO: should we maybe use a diffrent value? |
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200 | roar_vio_close(&(vss->vio)); |
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201 | return -1; |
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202 | } |
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203 | |
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204 | vss->mixerid = sinfo.mixer; |
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205 | _roar_vs_find_first_prim(vss); |
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206 | } |
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207 | |
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208 | vss->flags |= FLAG_STREAM; |
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209 | |
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210 | switch (dir) { |
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211 | case ROAR_DIR_PLAY: vss->flags |= FLAG_DIR_OUT; break; |
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212 | } |
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213 | |
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214 | return 0; |
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215 | } |
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216 | |
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217 | 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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218 | roar_vs_t * vss = roar_vs_new(server, name, error); |
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219 | int ret; |
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220 | |
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221 | if (vss == NULL) |
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222 | return NULL; |
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223 | |
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224 | memset(&(vss->info), 0, sizeof(vss->info)); |
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225 | |
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226 | vss->info.rate = rate; |
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227 | vss->info.channels = channels; |
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228 | vss->info.codec = codec; |
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229 | vss->info.bits = bits; |
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230 | |
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231 | ret = roar_vs_stream(vss, &(vss->info), dir, error); |
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232 | |
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233 | if (ret == -1) { |
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234 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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235 | return NULL; |
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236 | } |
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237 | |
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238 | return vss; |
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239 | } |
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240 | |
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241 | int roar_vs_file(roar_vs_t * vss, struct roar_vio_calls * vio, int closefile, int * error) { |
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242 | _ckvss(-1); |
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243 | |
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244 | if ( vio == NULL || (closefile != ROAR_VS_TRUE && closefile != ROAR_VS_FALSE)) { |
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245 | _seterr(ROAR_ERROR_INVAL); |
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246 | return -1; |
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247 | } |
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248 | |
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249 | if ( vss->file != NULL ) { |
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250 | _seterr(ROAR_ERROR_INVAL); |
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251 | return -1; |
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252 | } |
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253 | |
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254 | vss->file = vio; |
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255 | if ( closefile == ROAR_VS_TRUE ) |
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256 | vss->flags |= FLAG_CLOSEFILE; |
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257 | |
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258 | return 0; |
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259 | } |
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260 | |
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261 | int roar_vs_file_simple(roar_vs_t * vss, char * filename, int * error) { |
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262 | struct roar_vio_defaults def; |
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263 | struct roar_vio_calls * file; |
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264 | char buf[64]; |
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265 | ssize_t ret; |
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266 | int dir = O_RDONLY; |
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267 | int codec = -1; |
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268 | const char * content_type; |
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269 | |
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270 | _ckvss(-1); |
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271 | |
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272 | if ( vss->file != NULL ) { |
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273 | _seterr(ROAR_ERROR_INVAL); |
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274 | return -1; |
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275 | } |
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276 | |
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277 | if ( vss->flags & FLAG_STREAM ) { |
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278 | switch (vss->flags & (FLAG_DIR_IN|FLAG_DIR_OUT)) { |
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279 | case FLAG_DIR_IN: dir = O_WRONLY; break; |
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280 | case FLAG_DIR_OUT: dir = O_RDONLY; break; |
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281 | case FLAG_DIR_IN|FLAG_DIR_OUT: dir = O_RDWR; break; |
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282 | default: |
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283 | _seterr(ROAR_ERROR_INVAL); |
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284 | return -1; |
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285 | } |
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286 | } |
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287 | |
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288 | file = &(vss->file_store); |
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289 | |
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290 | _initerr(); |
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291 | |
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292 | if ( roar_vio_dstr_init_defaults(&def, ROAR_VIO_DEF_TYPE_NONE, dir, 0644) == -1 ) { |
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293 | _seterrre(); |
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294 | return -1; |
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295 | } |
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296 | |
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297 | if ( roar_vio_open_dstr(file, filename, &def, 1) == -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 | if ( !(vss->flags & FLAG_STREAM) ) { |
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303 | if ( roar_vio_ctl(file, ROAR_VIO_CTL_GET_MIMETYPE, &content_type) != -1 ) { |
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304 | codec = roar_mime2codec(content_type); |
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305 | } |
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306 | |
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307 | if ( codec == -1 ) { |
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308 | ret = roar_vio_read(file, buf, sizeof(buf)); |
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309 | |
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310 | codec = roar_file_codecdetect(buf, ret); |
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311 | |
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312 | if ( codec == -1 ) { |
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313 | roar_vio_close(file); |
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314 | _seterr(ROAR_ERROR_INVAL); // Other value? |
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315 | return -1; |
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316 | } |
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317 | |
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318 | if ( roar_vio_lseek(file, 0, SEEK_SET) != 0 ) { |
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319 | roar_vio_close(file); |
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320 | _seterrre(); |
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321 | return -1; |
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322 | } |
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323 | } |
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324 | |
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325 | memset(&(vss->info), 0, sizeof(vss->info)); |
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326 | |
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327 | vss->info.rate = ROAR_RATE_DEFAULT; |
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328 | vss->info.channels = ROAR_CHANNELS_DEFAULT; |
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329 | vss->info.codec = codec; |
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330 | vss->info.bits = ROAR_BITS_DEFAULT; |
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331 | |
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332 | ret = roar_vs_stream(vss, &(vss->info), ROAR_DIR_PLAY, error); |
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333 | |
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334 | if ( ret == -1 ) { |
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335 | roar_vio_close(file); |
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336 | return -1; |
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337 | } |
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338 | } |
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339 | |
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340 | if ( roar_vs_file(vss, file, ROAR_VS_TRUE, error) == -1 ) { |
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341 | roar_vio_close(file); |
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342 | return -1; |
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343 | } |
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344 | |
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345 | return 0; |
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346 | } |
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347 | |
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348 | roar_vs_t * roar_vs_new_from_file(const char * server, const char * name, char * filename, int * error) { |
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349 | roar_vs_t * vss = roar_vs_new(server, name, error); |
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350 | |
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351 | if ( vss == NULL ) |
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352 | return NULL; |
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353 | |
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354 | if ( roar_vs_file_simple(vss, filename, error) != 0 ) { |
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355 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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356 | return NULL; |
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357 | } |
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358 | |
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359 | return vss; |
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360 | } |
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361 | |
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362 | int roar_vs_buffer(roar_vs_t * vss, size_t buffer, int * error) { |
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363 | _ckvss(-1); |
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364 | |
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365 | if ( vss->flags & FLAG_BUFFERED ) |
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366 | return -1; |
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367 | |
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368 | if ( roar_buffer_ring_new(&(vss->readring), buffer, 0) == -1 ) { |
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369 | _seterrre(); |
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370 | return -1; |
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371 | } |
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372 | |
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373 | if ( roar_buffer_ring_new(&(vss->writering), buffer, 0) == -1 ) { |
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374 | _seterrre(); |
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375 | roar_buffer_free(vss->readring); |
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376 | vss->readring = NULL; |
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377 | return -1; |
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378 | } |
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379 | |
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380 | vss->flags |= FLAG_BUFFERED; |
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381 | |
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382 | return 0; |
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383 | } |
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384 | |
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385 | int roar_vs_close(roar_vs_t * vss, int killit, int * error) { |
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386 | if ( killit != ROAR_VS_TRUE && killit != ROAR_VS_FALSE ) { |
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387 | _seterr(ROAR_ERROR_INVAL); |
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388 | return -1; |
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389 | } |
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390 | |
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391 | _ckvss(-1); |
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392 | |
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393 | if ( vss->readbuffer != NULL ) |
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394 | roar_buffer_free(vss->readbuffer); |
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395 | if ( vss->writebuffer != NULL ) |
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396 | roar_buffer_free(vss->writebuffer); |
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397 | |
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398 | if ( vss->readring != NULL ) |
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399 | roar_buffer_free(vss->readring); |
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400 | if ( vss->writering != NULL ) |
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401 | roar_buffer_free(vss->writering); |
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402 | |
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403 | if ( vss->file != NULL && vss->flags & FLAG_CLOSEFILE ) |
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404 | roar_vio_close(vss->file); |
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405 | |
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406 | if ( vss->flags & FLAG_STREAM ) { |
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407 | if ( killit == ROAR_VS_TRUE ) { |
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408 | roar_kick(vss->con, ROAR_OT_STREAM, roar_stream_get_id(&(vss->stream))); |
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409 | } |
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410 | |
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411 | roar_vio_close(&(vss->vio)); |
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412 | } |
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413 | |
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414 | if ( vss->con == &(vss->con_store) ) { |
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415 | roar_disconnect(vss->con); |
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416 | } |
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417 | |
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418 | roar_mm_free(vss); |
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419 | return 0; |
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420 | } |
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421 | |
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422 | static ssize_t roar_vs_write_direct(roar_vs_t * vss, const void * buf, size_t len, int * error) { |
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423 | ssize_t ret = roar_vio_write(&(vss->vio), (void*)buf, len); |
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424 | |
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425 | if ( ret == -1 ) { |
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426 | #ifdef EAGAIN |
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427 | if ( errno == EAGAIN ) |
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428 | return 0; |
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429 | #endif |
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430 | |
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431 | #ifdef EWOULDBLOCK |
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432 | if ( errno == EWOULDBLOCK ) |
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433 | return 0; |
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434 | #endif |
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435 | |
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436 | _seterrre(); |
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437 | } else { |
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438 | if ( !(vss->flags & FLAG_BUFFERED) ) { |
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439 | //printf("A: vss->writec=%zu, ret=%zi\n", vss->writec, ret); |
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440 | vss->writec += ret; |
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441 | } |
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442 | } |
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443 | |
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444 | //printf("B: vss->writec=%zu, ret=%zi\n", vss->writec, ret); |
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445 | return ret; |
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446 | } |
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447 | |
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448 | ssize_t roar_vs_write(roar_vs_t * vss, const void * buf, size_t len, int * error) { |
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449 | ssize_t ret; |
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450 | size_t writelen; |
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451 | |
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452 | _ckvss(-1); |
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453 | |
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454 | if ( !(vss->flags & FLAG_STREAM) ) { |
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455 | _seterr(ROAR_ERROR_INVAL); |
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456 | return -1; |
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457 | } |
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458 | |
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459 | _initerr(); |
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460 | |
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461 | if ( vss->flags & FLAG_BUFFERED ) { |
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462 | writelen = len; |
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463 | |
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464 | if ( roar_buffer_ring_write(vss->writering, (void*)buf, &writelen) == -1 ) { |
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465 | _seterrre(); |
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466 | return -1; |
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467 | } |
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468 | |
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469 | ret = writelen; |
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470 | vss->writec += ret; |
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471 | } else { |
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472 | ret = roar_vs_write_direct(vss, buf, len, error); |
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473 | } |
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474 | |
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475 | return ret; |
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476 | } |
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477 | |
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478 | ssize_t roar_vs_read (roar_vs_t * vss, void * buf, size_t len, int * error) { |
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479 | ssize_t ret; |
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480 | |
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481 | _ckvss(-1); |
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482 | |
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483 | if ( !(vss->flags & FLAG_STREAM) ) { |
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484 | _seterr(ROAR_ERROR_INVAL); |
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485 | return -1; |
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486 | } |
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487 | |
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488 | _initerr(); |
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489 | |
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490 | ret = roar_vio_read(&(vss->vio), buf, len); |
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491 | |
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492 | if ( ret == -1 ) { |
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493 | _seterrre(); |
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494 | } else { |
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495 | vss->readc += ret; |
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496 | } |
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497 | |
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498 | return ret; |
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499 | } |
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500 | |
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501 | int roar_vs_sync (roar_vs_t * vss, int wait, int * error) { |
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502 | struct roar_event waits, triggered; |
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503 | |
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504 | _ckvss(-1); |
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505 | |
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506 | if ( !(vss->flags & FLAG_STREAM) ) { |
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507 | _seterr(ROAR_ERROR_INVAL); |
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508 | return -1; |
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509 | } |
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510 | |
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511 | if ( wait != ROAR_VS_NOWAIT && wait != ROAR_VS_WAIT ) { |
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512 | _seterr(ROAR_ERROR_INVAL); |
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513 | return -1; |
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514 | } |
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515 | |
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516 | _initerr(); |
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517 | |
---|
518 | if ( roar_vio_sync(&(vss->vio)) == -1 ) { |
---|
519 | _seterrre(); |
---|
520 | return -1; |
---|
521 | } |
---|
522 | |
---|
523 | if ( wait == ROAR_VS_WAIT ) { |
---|
524 | memset(&waits, 0, sizeof(waits)); |
---|
525 | waits.event = ROAR_OE_STREAM_XRUN; |
---|
526 | waits.emitter = -1; |
---|
527 | waits.target = roar_stream_get_id(&(vss->stream)); |
---|
528 | waits.target_type = ROAR_OT_STREAM; |
---|
529 | |
---|
530 | if ( roar_wait(vss->con, &triggered, &waits, 1) == -1 ) { |
---|
531 | _seterrre(); |
---|
532 | return -1; |
---|
533 | } |
---|
534 | } |
---|
535 | |
---|
536 | return 0; |
---|
537 | } |
---|
538 | |
---|
539 | int roar_vs_blocking (roar_vs_t * vss, int val, int * error) { |
---|
540 | int old = -1; |
---|
541 | |
---|
542 | _ckvss(-1); |
---|
543 | |
---|
544 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
545 | _seterr(ROAR_ERROR_INVAL); |
---|
546 | return -1; |
---|
547 | } |
---|
548 | |
---|
549 | old = vss->flags & FLAG_NONBLOCK ? ROAR_VS_FALSE : ROAR_VS_TRUE; |
---|
550 | |
---|
551 | _initerr(); |
---|
552 | |
---|
553 | switch (val) { |
---|
554 | case ROAR_VS_TRUE: |
---|
555 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_BLOCK) == -1 ) { |
---|
556 | _seterrre(); |
---|
557 | return -1; |
---|
558 | } |
---|
559 | vss->flags |= FLAG_NONBLOCK; |
---|
560 | vss->flags -= FLAG_NONBLOCK; |
---|
561 | return old; |
---|
562 | break; |
---|
563 | case ROAR_VS_FALSE: |
---|
564 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_NONBLOCK) == -1 ) { |
---|
565 | _seterrre(); |
---|
566 | return -1; |
---|
567 | } |
---|
568 | vss->flags |= FLAG_NONBLOCK; |
---|
569 | return old; |
---|
570 | break; |
---|
571 | case ROAR_VS_TOGGLE: |
---|
572 | if ( old == ROAR_VS_TRUE ) { |
---|
573 | return roar_vs_blocking(vss, ROAR_VS_FALSE, error); |
---|
574 | } else { |
---|
575 | return roar_vs_blocking(vss, ROAR_VS_TRUE, error); |
---|
576 | } |
---|
577 | break; |
---|
578 | case ROAR_VS_ASK: |
---|
579 | return old; |
---|
580 | break; |
---|
581 | } |
---|
582 | |
---|
583 | _seterr(ROAR_ERROR_INVAL); |
---|
584 | return -1; |
---|
585 | } |
---|
586 | |
---|
587 | static int _roar_vs_find_first_prim(roar_vs_t * vss) { |
---|
588 | struct roar_stream stream; |
---|
589 | struct roar_stream_info info; |
---|
590 | int id[ROAR_STREAMS_MAX]; |
---|
591 | int num; |
---|
592 | int i; |
---|
593 | |
---|
594 | if ( vss->first_primid != -1 ) |
---|
595 | return vss->first_primid; |
---|
596 | |
---|
597 | if ( vss->mixerid == -1 ) |
---|
598 | return -1; |
---|
599 | |
---|
600 | if ( (num = roar_list_streams(vss->con, id, ROAR_STREAMS_MAX)) == -1 ) { |
---|
601 | return -1; |
---|
602 | } |
---|
603 | |
---|
604 | for (i = 0; i < num; i++) { |
---|
605 | if ( roar_get_stream(vss->con, &stream, id[i]) == -1 ) |
---|
606 | continue; |
---|
607 | |
---|
608 | if ( stream.dir != ROAR_DIR_OUTPUT ) |
---|
609 | continue; |
---|
610 | |
---|
611 | if ( roar_stream_get_info(vss->con, &stream, &info) == -1 ) |
---|
612 | continue; |
---|
613 | |
---|
614 | if ( info.mixer == vss->mixerid ) { |
---|
615 | vss->first_primid = id[i]; |
---|
616 | return id[i]; |
---|
617 | } |
---|
618 | } |
---|
619 | |
---|
620 | return -1; |
---|
621 | } |
---|
622 | |
---|
623 | ssize_t roar_vs_position(roar_vs_t * vss, int backend, int * error) { |
---|
624 | struct roar_stream stream; |
---|
625 | struct roar_stream out_stream; |
---|
626 | struct roar_stream_info out_info; |
---|
627 | size_t offset = 0; |
---|
628 | |
---|
629 | _ckvss(-1); |
---|
630 | |
---|
631 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
632 | _seterr(ROAR_ERROR_INVAL); |
---|
633 | return -1; |
---|
634 | } |
---|
635 | |
---|
636 | _initerr(); |
---|
637 | |
---|
638 | if ( roar_get_stream(vss->con, &stream, roar_stream_get_id(&(vss->stream))) == -1 ) { |
---|
639 | _seterrre(); |
---|
640 | return -1; |
---|
641 | } |
---|
642 | |
---|
643 | if ( backend == ROAR_VS_BACKEND_DEFAULT ) { |
---|
644 | backend = ROAR_VS_BACKEND_FIRST; |
---|
645 | } |
---|
646 | |
---|
647 | switch (backend) { |
---|
648 | case ROAR_VS_BACKEND_NONE: |
---|
649 | return stream.pos; |
---|
650 | break; |
---|
651 | case ROAR_VS_BACKEND_FIRST: |
---|
652 | if ( vss->first_primid == -1 ) { |
---|
653 | _seterr(ROAR_ERROR_UNKNOWN); |
---|
654 | return -1; |
---|
655 | } |
---|
656 | |
---|
657 | backend = vss->first_primid; |
---|
658 | break; |
---|
659 | default: |
---|
660 | if ( backend < 0 ) { |
---|
661 | _seterr(ROAR_ERROR_INVAL); |
---|
662 | return -1; |
---|
663 | } |
---|
664 | break; |
---|
665 | } |
---|
666 | |
---|
667 | |
---|
668 | if ( backend >= 0 ) { |
---|
669 | roar_stream_new_by_id(&out_stream, backend); |
---|
670 | |
---|
671 | if ( roar_stream_get_info(vss->con, &out_stream, &out_info) == -1 ) { |
---|
672 | _seterrre(); |
---|
673 | return -1; |
---|
674 | } |
---|
675 | |
---|
676 | offset = out_info.delay * vss->info.rate; |
---|
677 | offset /= 1000000; |
---|
678 | } |
---|
679 | |
---|
680 | return stream.pos + offset; |
---|
681 | } |
---|
682 | |
---|
683 | #ifdef _HAVE_SOCKOPT |
---|
684 | static void roar_vs_latency_managed(roar_vs_t * vss, roar_mus_t lat) { |
---|
685 | struct roar_vio_sysio_sockopt sockopt; |
---|
686 | float tmp = ((float)lat/1000.0) - vss->latc.target; |
---|
687 | int val; |
---|
688 | |
---|
689 | tmp *= vss->latc.p; |
---|
690 | |
---|
691 | sockopt.level = SOL_SOCKET; |
---|
692 | sockopt.optname = SO_SNDBUF; |
---|
693 | sockopt.optval = &val; |
---|
694 | sockopt.optlen = sizeof(val); |
---|
695 | |
---|
696 | roar_vio_ctl(&(vss->vio), ROAR_VIO_CTL_GET_SYSIO_SOCKOPT, &sockopt); |
---|
697 | |
---|
698 | val /= 2; |
---|
699 | |
---|
700 | tmp = 1.0 - tmp; |
---|
701 | |
---|
702 | val = (float)val*tmp; |
---|
703 | |
---|
704 | sockopt.optlen = sizeof(val); |
---|
705 | |
---|
706 | roar_vio_ctl(&(vss->vio), ROAR_VIO_CTL_SET_SYSIO_SOCKOPT, &sockopt); |
---|
707 | } |
---|
708 | #endif |
---|
709 | |
---|
710 | roar_mus_t roar_vs_latency(roar_vs_t * vss, int backend, int * error) { |
---|
711 | ssize_t pos = roar_vs_position(vss, backend, error); |
---|
712 | ssize_t bps; // byte per sample |
---|
713 | size_t lioc; // local IO (byte) counter |
---|
714 | size_t lpos; // local possition |
---|
715 | signed long long int lag; |
---|
716 | |
---|
717 | // printf("pos=%zi\n", pos); |
---|
718 | |
---|
719 | _initerr(); |
---|
720 | |
---|
721 | _ckvss(-1); |
---|
722 | |
---|
723 | if (pos == -1) { |
---|
724 | _seterrre(); |
---|
725 | return 0; |
---|
726 | } |
---|
727 | |
---|
728 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
729 | _seterr(ROAR_ERROR_INVAL); |
---|
730 | return 0; |
---|
731 | } |
---|
732 | |
---|
733 | if ( vss->writec == 0 ) { |
---|
734 | lioc = vss->readc; |
---|
735 | } else { |
---|
736 | //printf("writec=%zu\n", vss->writec); |
---|
737 | lioc = vss->writec; |
---|
738 | } |
---|
739 | |
---|
740 | bps = roar_info2samplesize(&(vss->info)); |
---|
741 | |
---|
742 | if ( bps == -1 ) { |
---|
743 | _seterrre(); |
---|
744 | return 0; |
---|
745 | } |
---|
746 | |
---|
747 | lpos = (lioc*8) / bps; |
---|
748 | |
---|
749 | //printf("pos=%zi, lpos=%zi, bps=%zi, diff[lpos-pos]=%zi\n", pos, lpos, bps, (lpos - pos)); |
---|
750 | |
---|
751 | lag = (signed long long int)lpos - (signed long long int)pos; |
---|
752 | lag /= vss->info.channels; |
---|
753 | |
---|
754 | // we now have the lag in frames |
---|
755 | // return value are mus |
---|
756 | // so we need to multiply with 1s/mus and |
---|
757 | // multiply by 1/rate |
---|
758 | |
---|
759 | lag *= 1000000; // 1s/mus |
---|
760 | lag /= vss->info.rate; |
---|
761 | |
---|
762 | if ( lag == 0 ) { |
---|
763 | _seterr(ROAR_ERROR_NONE); |
---|
764 | } |
---|
765 | |
---|
766 | #ifdef _HAVE_SOCKOPT |
---|
767 | if (vss->latc.target > vss->latc.minlag) { |
---|
768 | roar_vs_latency_managed(vss, lag); |
---|
769 | } |
---|
770 | #endif |
---|
771 | |
---|
772 | return lag; |
---|
773 | } |
---|
774 | |
---|
775 | static int roar_vs_flag(roar_vs_t * vss, int flag, int val, int * error) { |
---|
776 | struct roar_stream_info info; |
---|
777 | int old = -1; |
---|
778 | |
---|
779 | _ckvss(-1); |
---|
780 | |
---|
781 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
782 | _seterr(ROAR_ERROR_INVAL); |
---|
783 | return -1; |
---|
784 | } |
---|
785 | |
---|
786 | if ( val != ROAR_VS_ASK ) |
---|
787 | old = roar_vs_flag(vss, flag, ROAR_VS_ASK, error); |
---|
788 | |
---|
789 | _initerr(); |
---|
790 | |
---|
791 | switch (val) { |
---|
792 | case ROAR_VS_TRUE: |
---|
793 | case ROAR_VS_FALSE: |
---|
794 | if ( roar_stream_set_flags(vss->con, &(vss->stream), flag, |
---|
795 | val == ROAR_VS_TRUE ? ROAR_SET_FLAG : ROAR_RESET_FLAG) == -1 ) { |
---|
796 | _seterrre(); |
---|
797 | return -1; |
---|
798 | } |
---|
799 | return old; |
---|
800 | break; |
---|
801 | case ROAR_VS_TOGGLE: |
---|
802 | return roar_vs_flag(vss, flag, old == ROAR_VS_TRUE ? ROAR_VS_FALSE : ROAR_VS_TRUE, error); |
---|
803 | break; |
---|
804 | case ROAR_VS_ASK: |
---|
805 | if ( roar_stream_get_info(vss->con, &(vss->stream), &info) == -1 ) { |
---|
806 | _seterrre(); |
---|
807 | return -1; |
---|
808 | } |
---|
809 | return info.flags & flag ? ROAR_VS_TRUE : ROAR_VS_FALSE; |
---|
810 | break; |
---|
811 | } |
---|
812 | |
---|
813 | _seterr(ROAR_ERROR_INVAL); |
---|
814 | return -1; |
---|
815 | } |
---|
816 | |
---|
817 | int roar_vs_pause(roar_vs_t * vss, int val, int * error) { |
---|
818 | return roar_vs_flag(vss, ROAR_FLAG_PAUSE, val, error); |
---|
819 | } |
---|
820 | |
---|
821 | int roar_vs_mute (roar_vs_t * vss, int val, int * error) { |
---|
822 | return roar_vs_flag(vss, ROAR_FLAG_MUTE, val, error); |
---|
823 | } |
---|
824 | |
---|
825 | static int roar_vs_volume (roar_vs_t * vss, float * c, size_t channels, int * error) { |
---|
826 | struct roar_mixer_settings mixer; |
---|
827 | size_t i; |
---|
828 | register float s; |
---|
829 | int oldchannels; |
---|
830 | int handled; |
---|
831 | |
---|
832 | _ckvss(-1); |
---|
833 | |
---|
834 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
835 | _seterr(ROAR_ERROR_INVAL); |
---|
836 | return -1; |
---|
837 | } |
---|
838 | |
---|
839 | if ( channels > ROAR_MAX_CHANNELS ) { |
---|
840 | _seterr(ROAR_ERROR_INVAL); |
---|
841 | return -1; |
---|
842 | } |
---|
843 | |
---|
844 | _initerr(); |
---|
845 | |
---|
846 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &oldchannels) == -1 ) { |
---|
847 | _seterrre(); |
---|
848 | return -1; |
---|
849 | } |
---|
850 | |
---|
851 | for (i = 0; i < channels; i++) { |
---|
852 | s = c[i] * 65535.0; |
---|
853 | if ( s > 66190.0 || s < -655.0 ) { |
---|
854 | _seterr(ROAR_ERROR_RANGE); |
---|
855 | return -1; |
---|
856 | } else if ( s > 65535.0 ) { |
---|
857 | s = 65535.0; |
---|
858 | } else if ( s < 0.0 ) { |
---|
859 | s = 0.0; |
---|
860 | } |
---|
861 | mixer.mixer[i] = s; |
---|
862 | } |
---|
863 | |
---|
864 | mixer.scale = 65535; |
---|
865 | |
---|
866 | if ( channels != oldchannels ) { |
---|
867 | handled = 0; |
---|
868 | switch (oldchannels) { |
---|
869 | case 1: |
---|
870 | if ( channels == 2 ) { |
---|
871 | mixer.mixer[0] = (mixer.mixer[0] + mixer.mixer[1]) / 2; |
---|
872 | handled = 1; |
---|
873 | } |
---|
874 | break; |
---|
875 | case 2: |
---|
876 | if ( channels == 1 ) { |
---|
877 | mixer.mixer[1] = mixer.mixer[0]; |
---|
878 | handled = 1; |
---|
879 | } |
---|
880 | break; |
---|
881 | case 4: |
---|
882 | if ( channels == 1 ) { |
---|
883 | mixer.mixer[1] = mixer.mixer[0]; |
---|
884 | mixer.mixer[2] = mixer.mixer[0]; |
---|
885 | mixer.mixer[3] = mixer.mixer[0]; |
---|
886 | handled = 1; |
---|
887 | } else if ( channels == 2 ) { |
---|
888 | mixer.mixer[2] = mixer.mixer[0]; |
---|
889 | mixer.mixer[3] = mixer.mixer[1]; |
---|
890 | handled = 1; |
---|
891 | } |
---|
892 | break; |
---|
893 | } |
---|
894 | if ( handled ) { |
---|
895 | channels = oldchannels; |
---|
896 | } else { |
---|
897 | _seterr(ROAR_ERROR_INVAL); |
---|
898 | return -1; |
---|
899 | } |
---|
900 | } |
---|
901 | |
---|
902 | if ( roar_set_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, channels) == -1 ) { |
---|
903 | _seterrre(); |
---|
904 | return -1; |
---|
905 | } |
---|
906 | |
---|
907 | return 0; |
---|
908 | } |
---|
909 | |
---|
910 | int roar_vs_volume_mono (roar_vs_t * vss, float c, int * error) { |
---|
911 | return roar_vs_volume(vss, &c, 1, error); |
---|
912 | } |
---|
913 | |
---|
914 | int roar_vs_volume_stereo (roar_vs_t * vss, float l, float r, int * error) { |
---|
915 | float c[2] = {l, r}; |
---|
916 | return roar_vs_volume(vss, c, 2, error); |
---|
917 | } |
---|
918 | |
---|
919 | int roar_vs_volume_get (roar_vs_t * vss, float * l, float * r, int * error) { |
---|
920 | struct roar_mixer_settings mixer; |
---|
921 | int channels; |
---|
922 | |
---|
923 | if ( vss == NULL || l == NULL || r == NULL ) { |
---|
924 | _seterr(ROAR_ERROR_INVAL); |
---|
925 | return -1; |
---|
926 | } |
---|
927 | |
---|
928 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
929 | _seterr(ROAR_ERROR_INVAL); |
---|
930 | return -1; |
---|
931 | } |
---|
932 | |
---|
933 | _initerr(); |
---|
934 | |
---|
935 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &channels) == -1 ) { |
---|
936 | _seterrre(); |
---|
937 | return -1; |
---|
938 | } |
---|
939 | |
---|
940 | if ( channels == 1 ) |
---|
941 | mixer.mixer[1] = mixer.mixer[0]; |
---|
942 | |
---|
943 | *l = mixer.mixer[0] / (float)mixer.scale; |
---|
944 | *r = mixer.mixer[1] / (float)mixer.scale; |
---|
945 | |
---|
946 | return 0; |
---|
947 | } |
---|
948 | |
---|
949 | int roar_vs_meta (roar_vs_t * vss, struct roar_keyval * kv, size_t len, int * error) { |
---|
950 | struct roar_meta meta; |
---|
951 | size_t i; |
---|
952 | int type; |
---|
953 | int ret = 0; |
---|
954 | |
---|
955 | _ckvss(-1); |
---|
956 | |
---|
957 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
958 | _seterr(ROAR_ERROR_INVAL); |
---|
959 | return -1; |
---|
960 | } |
---|
961 | |
---|
962 | meta.type = ROAR_META_TYPE_NONE; |
---|
963 | meta.key[0] = 0; |
---|
964 | meta.value = NULL; |
---|
965 | |
---|
966 | _initerr(); |
---|
967 | |
---|
968 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_CLEAR, &meta) == -1 ) { |
---|
969 | _seterrre(); |
---|
970 | ret = -1; |
---|
971 | } |
---|
972 | |
---|
973 | for (i = 0; i < len; i++) { |
---|
974 | type = roar_meta_inttype(kv[i].key); |
---|
975 | meta.type = type; |
---|
976 | meta.value = kv[i].value; |
---|
977 | |
---|
978 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_ADD, &meta) == -1 ) { |
---|
979 | _seterrre(); |
---|
980 | ret = -1; |
---|
981 | } |
---|
982 | } |
---|
983 | |
---|
984 | meta.type = ROAR_META_TYPE_NONE; |
---|
985 | meta.key[0] = 0; |
---|
986 | meta.value = NULL; |
---|
987 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_FINALIZE, &meta) == -1 ) { |
---|
988 | _seterrre(); |
---|
989 | ret = -1; |
---|
990 | } |
---|
991 | |
---|
992 | return ret; |
---|
993 | } |
---|
994 | |
---|
995 | int roar_vs_role (roar_vs_t * vss, int role, int * error) { |
---|
996 | _ckvss(-1); |
---|
997 | |
---|
998 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
999 | _seterr(ROAR_ERROR_INVAL); |
---|
1000 | return -1; |
---|
1001 | } |
---|
1002 | |
---|
1003 | _initerr(); |
---|
1004 | |
---|
1005 | if ( roar_stream_set_role(vss->con, &(vss->stream), role) == -1 ) { |
---|
1006 | _seterrre(); |
---|
1007 | return -1; |
---|
1008 | } |
---|
1009 | |
---|
1010 | return 0; |
---|
1011 | } |
---|
1012 | |
---|
1013 | |
---|
1014 | int roar_vs_iterate (roar_vs_t * vss, int wait, int * error) { |
---|
1015 | struct roar_vio_select vios[3]; |
---|
1016 | struct roar_vio_selecttv rtv = {.sec = 0, .nsec = 1}; |
---|
1017 | size_t len = 0; |
---|
1018 | ssize_t i; |
---|
1019 | ssize_t ret; |
---|
1020 | int can_read = 0, can_write = 0; |
---|
1021 | int can_flush_stream = 0, can_flush_file = 0; |
---|
1022 | int is_eof = 0; |
---|
1023 | void * data; |
---|
1024 | size_t tmp; |
---|
1025 | |
---|
1026 | // TODO: fix error handling below. |
---|
1027 | |
---|
1028 | _ckvss(-1); |
---|
1029 | |
---|
1030 | if ( wait != ROAR_VS_WAIT && wait != ROAR_VS_NOWAIT ) { |
---|
1031 | _seterr(ROAR_ERROR_INVAL); |
---|
1032 | return -1; |
---|
1033 | } |
---|
1034 | |
---|
1035 | ROAR_VIO_SELECT_SETVIO(&(vios[len]), &(vss->vio), ((vss->flags & FLAG_DIR_IN ? ROAR_VIO_SELECT_READ : 0) | |
---|
1036 | (vss->flags & FLAG_DIR_OUT ? ROAR_VIO_SELECT_WRITE : 0))); |
---|
1037 | vios[len].ud.vp = &(vss->vio); |
---|
1038 | len++; |
---|
1039 | |
---|
1040 | ROAR_VIO_SELECT_SETVIO(&(vios[len]), roar_get_connection_vio2(vss->con), ROAR_VIO_SELECT_READ); |
---|
1041 | vios[len].ud.vp = vss->con; |
---|
1042 | len++; |
---|
1043 | |
---|
1044 | |
---|
1045 | // TODO: FIXME: need to do two select()s so we can sleep more efficently and test for both directions. |
---|
1046 | // for the moment we disable file direction and hope it will not block anyway... |
---|
1047 | /* |
---|
1048 | if ( vss->file != NULL ) { |
---|
1049 | ROAR_VIO_SELECT_SETVIO(&(vios[len]), vss->file, ((vss->flags & FLAG_DIR_IN ? ROAR_VIO_SELECT_WRITE : 0) | |
---|
1050 | (vss->flags & FLAG_DIR_OUT ? ROAR_VIO_SELECT_READ : 0))); |
---|
1051 | vios[len].ud.vp = vss->file; |
---|
1052 | len++; |
---|
1053 | } |
---|
1054 | */ |
---|
1055 | |
---|
1056 | ret = roar_vio_select(vios, len, (wait == ROAR_VS_NOWAIT ? &rtv : NULL), NULL); |
---|
1057 | |
---|
1058 | // part 2 of above hack: |
---|
1059 | // emulate read handle. |
---|
1060 | if ( vss->file != NULL ) { |
---|
1061 | vios[len].ud.vp = vss->file; |
---|
1062 | vios[len].eventsa = ROAR_VIO_SELECT_WRITE|ROAR_VIO_SELECT_READ; |
---|
1063 | len++; |
---|
1064 | } |
---|
1065 | |
---|
1066 | // no error here nor EOF. |
---|
1067 | if ( ret == 0 ) |
---|
1068 | return 1; |
---|
1069 | |
---|
1070 | for (i = 0; i < len; i++) { |
---|
1071 | if ( !vios[i].eventsa ) |
---|
1072 | continue; |
---|
1073 | |
---|
1074 | if ( vios[i].ud.vp == &(vss->vio) ) { |
---|
1075 | if ( vios[i].eventsa & ROAR_VIO_SELECT_READ ) |
---|
1076 | can_read++; |
---|
1077 | |
---|
1078 | if ( vios[i].eventsa & ROAR_VIO_SELECT_WRITE ) { |
---|
1079 | can_write++; |
---|
1080 | can_flush_stream = 1; |
---|
1081 | } |
---|
1082 | } else if ( vios[i].ud.vp == vss->con ) { |
---|
1083 | roar_sync(vss->con); |
---|
1084 | } else if ( vss->file != NULL && vios[i].ud.vp == vss->file ) { |
---|
1085 | if ( vios[i].eventsa & ROAR_VIO_SELECT_READ ) |
---|
1086 | can_write++; |
---|
1087 | |
---|
1088 | if ( vios[i].eventsa & ROAR_VIO_SELECT_WRITE ) { |
---|
1089 | can_read++; |
---|
1090 | can_flush_file = 1; |
---|
1091 | } |
---|
1092 | } |
---|
1093 | } |
---|
1094 | |
---|
1095 | if ( vss->flags & FLAG_BUFFERED ) { |
---|
1096 | if ( roar_buffer_ring_avail(vss->readring, NULL, &tmp) != -1 ) |
---|
1097 | if ( tmp > 0 ) |
---|
1098 | can_read++; |
---|
1099 | |
---|
1100 | // no check here to just let the read return zero and we do EOF handling. |
---|
1101 | /* |
---|
1102 | if ( roar_buffer_ring_avail(vss->writering, &tmp, NULL) != -1 ) |
---|
1103 | if ( tmp > 0 ) |
---|
1104 | */ |
---|
1105 | can_write++; |
---|
1106 | } |
---|
1107 | |
---|
1108 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p): can_read=%i, can_write=%i", vss, wait, error, can_read, can_write); |
---|
1109 | |
---|
1110 | // TODO: FIXME: Need to correct error handling here! |
---|
1111 | |
---|
1112 | if ( can_flush_stream && vss->writebuffer != NULL ) { |
---|
1113 | if ( roar_buffer_get_data(vss->writebuffer, &data) == -1 ) |
---|
1114 | return -1; |
---|
1115 | |
---|
1116 | if ( roar_buffer_get_len(vss->writebuffer, &len) == -1 ) |
---|
1117 | return -1; |
---|
1118 | |
---|
1119 | ret = roar_vs_write_direct(vss, data, len, error); |
---|
1120 | |
---|
1121 | if ( ret == -1 ) { |
---|
1122 | return -1; |
---|
1123 | } else if ( ret == len ) { |
---|
1124 | roar_buffer_free(vss->writebuffer); |
---|
1125 | vss->writebuffer = NULL; |
---|
1126 | } else { |
---|
1127 | if ( roar_buffer_set_offset(vss->writebuffer, ret) == -1 ) |
---|
1128 | return -1; |
---|
1129 | } |
---|
1130 | } |
---|
1131 | |
---|
1132 | if ( can_flush_file && vss->readbuffer != NULL ) { |
---|
1133 | if ( roar_buffer_get_data(vss->readbuffer, &data) == -1 ) |
---|
1134 | return -1; |
---|
1135 | |
---|
1136 | if ( roar_buffer_get_len(vss->readbuffer, &len) == -1 ) |
---|
1137 | return -1; |
---|
1138 | |
---|
1139 | ret = roar_vio_write(vss->file, data, len); |
---|
1140 | |
---|
1141 | if ( ret == -1 ) { |
---|
1142 | return -1; |
---|
1143 | } else if ( ret == len ) { |
---|
1144 | roar_buffer_free(vss->readbuffer); |
---|
1145 | vss->readbuffer = NULL; |
---|
1146 | } else { |
---|
1147 | if ( roar_buffer_set_offset(vss->readbuffer, ret) == -1 ) |
---|
1148 | return -1; |
---|
1149 | } |
---|
1150 | } |
---|
1151 | |
---|
1152 | #define _READ_SIZE 1024 |
---|
1153 | |
---|
1154 | if ( can_read == 2 && vss->readbuffer == NULL ) { |
---|
1155 | if ( roar_buffer_new_data(&(vss->readbuffer), (len = _READ_SIZE), &data) == -1 ) |
---|
1156 | return -1; |
---|
1157 | |
---|
1158 | ret = roar_vs_read(vss, data, len, error); |
---|
1159 | |
---|
1160 | if ( ret == -1 ) { |
---|
1161 | roar_buffer_free(vss->readbuffer); |
---|
1162 | vss->readbuffer = NULL; |
---|
1163 | return -1; |
---|
1164 | } else if ( ret == 0 ) { |
---|
1165 | is_eof = 1; |
---|
1166 | roar_buffer_free(vss->readbuffer); |
---|
1167 | vss->readbuffer = NULL; |
---|
1168 | } else { |
---|
1169 | len = ret; |
---|
1170 | if ( roar_buffer_set_len(vss->readbuffer, len) == -1 ) |
---|
1171 | return -1; |
---|
1172 | |
---|
1173 | if ( vss->flags & FLAG_BUFFERED ) { |
---|
1174 | tmp = len; |
---|
1175 | if ( roar_buffer_ring_write(vss->readring, data, &tmp) == -1 ) { |
---|
1176 | ret = -1; |
---|
1177 | } else { |
---|
1178 | ret = tmp; |
---|
1179 | } |
---|
1180 | } else { |
---|
1181 | ret = roar_vio_write(vss->file, data, len); |
---|
1182 | } |
---|
1183 | |
---|
1184 | if ( ret == -1 ) { |
---|
1185 | return -1; |
---|
1186 | } else if ( ret == len ) { |
---|
1187 | roar_buffer_free(vss->readbuffer); |
---|
1188 | vss->readbuffer = NULL; |
---|
1189 | } else { |
---|
1190 | if ( roar_buffer_set_offset(vss->readbuffer, ret) == -1 ) |
---|
1191 | return -1; |
---|
1192 | } |
---|
1193 | } |
---|
1194 | } |
---|
1195 | |
---|
1196 | if ( can_write == 2 && vss->writebuffer == NULL ) { |
---|
1197 | if ( roar_buffer_new_data(&(vss->writebuffer), (len = _READ_SIZE), &data) == -1 ) |
---|
1198 | return -1; |
---|
1199 | |
---|
1200 | if ( vss->flags & FLAG_BUFFERED ) { |
---|
1201 | tmp = len; |
---|
1202 | if ( roar_buffer_ring_read(vss->writering, data, &tmp) == -1 ) { |
---|
1203 | ret = -1; |
---|
1204 | } else { |
---|
1205 | ret = tmp; |
---|
1206 | } |
---|
1207 | } else { |
---|
1208 | ret = roar_vio_read(vss->file, data, len); |
---|
1209 | } |
---|
1210 | |
---|
1211 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p): ret=%lli", vss, wait, error, (long long int)ret); |
---|
1212 | |
---|
1213 | if ( ret == -1 ) { |
---|
1214 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
1215 | |
---|
1216 | roar_buffer_free(vss->writebuffer); |
---|
1217 | vss->writebuffer = NULL; |
---|
1218 | return -1; |
---|
1219 | } else if ( ret == 0 ) { |
---|
1220 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
1221 | |
---|
1222 | is_eof = 1; |
---|
1223 | roar_buffer_free(vss->writebuffer); |
---|
1224 | vss->writebuffer = NULL; |
---|
1225 | } else { |
---|
1226 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
1227 | |
---|
1228 | if ( len != ret ) { |
---|
1229 | len = ret; |
---|
1230 | if ( roar_buffer_set_len(vss->writebuffer, len) == -1 ) |
---|
1231 | return -1; |
---|
1232 | } |
---|
1233 | |
---|
1234 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
1235 | |
---|
1236 | ret = roar_vs_write_direct(vss, data, len, error); |
---|
1237 | |
---|
1238 | if ( ret == -1 ) { |
---|
1239 | return -1; |
---|
1240 | } else if ( ret == len ) { |
---|
1241 | roar_buffer_free(vss->writebuffer); |
---|
1242 | vss->writebuffer = NULL; |
---|
1243 | } else { |
---|
1244 | if ( roar_buffer_set_offset(vss->writebuffer, ret) == -1 ) |
---|
1245 | return -1; |
---|
1246 | } |
---|
1247 | } |
---|
1248 | } |
---|
1249 | |
---|
1250 | return is_eof ? 0 : 2; |
---|
1251 | } |
---|
1252 | |
---|
1253 | int roar_vs_run (roar_vs_t * vss, int * error) { |
---|
1254 | int ret; |
---|
1255 | |
---|
1256 | _ckvss(-1); |
---|
1257 | |
---|
1258 | while ((ret = roar_vs_iterate(vss, ROAR_VS_WAIT, error)) > 0); |
---|
1259 | |
---|
1260 | ROAR_DBG("roar_vs_run(vss=%p, error=%p): ret=%i", vss, error, ret); |
---|
1261 | |
---|
1262 | if ( ret == 0 ) { |
---|
1263 | // flush buffers: |
---|
1264 | roar_vs_iterate(vss, ROAR_VS_WAIT, error); |
---|
1265 | } |
---|
1266 | |
---|
1267 | if ( roar_vs_sync(vss, ROAR_VS_WAIT, error) == -1 ) |
---|
1268 | return -1; |
---|
1269 | |
---|
1270 | return ret; |
---|
1271 | } |
---|
1272 | |
---|
1273 | ssize_t roar_vs_get_avail_read(roar_vs_t * vss, int * error) { |
---|
1274 | size_t len; |
---|
1275 | |
---|
1276 | _ckvss(-1); |
---|
1277 | |
---|
1278 | if ( !(vss->flags & FLAG_BUFFERED) ) { |
---|
1279 | _seterr(ROAR_ERROR_INVAL); |
---|
1280 | return -1; |
---|
1281 | } |
---|
1282 | |
---|
1283 | if ( roar_buffer_ring_avail(vss->readring, &len, NULL) == -1 ) { |
---|
1284 | _seterrre(); |
---|
1285 | return -1; |
---|
1286 | } |
---|
1287 | |
---|
1288 | return len; |
---|
1289 | } |
---|
1290 | |
---|
1291 | ssize_t roar_vs_get_avail_write(roar_vs_t * vss, int * error) { |
---|
1292 | size_t len; |
---|
1293 | |
---|
1294 | _ckvss(-1); |
---|
1295 | |
---|
1296 | if ( !(vss->flags & FLAG_BUFFERED) ) { |
---|
1297 | _seterr(ROAR_ERROR_INVAL); |
---|
1298 | return -1; |
---|
1299 | } |
---|
1300 | |
---|
1301 | if ( roar_buffer_ring_avail(vss->writering, NULL, &len) == -1 ) { |
---|
1302 | _seterrre(); |
---|
1303 | return -1; |
---|
1304 | } |
---|
1305 | |
---|
1306 | return len; |
---|
1307 | } |
---|
1308 | |
---|
1309 | int roar_vs_reset_buffer(roar_vs_t * vss, int writering, int readring, int * error) { |
---|
1310 | _ckvss(-1); |
---|
1311 | |
---|
1312 | if ( !(vss->flags & FLAG_BUFFERED) ) { |
---|
1313 | _seterr(ROAR_ERROR_INVAL); |
---|
1314 | return -1; |
---|
1315 | } |
---|
1316 | |
---|
1317 | if ( writering != ROAR_VS_TRUE || writering != ROAR_VS_FALSE || |
---|
1318 | readring != ROAR_VS_TRUE || readring != ROAR_VS_FALSE ) { |
---|
1319 | _seterr(ROAR_ERROR_INVAL); |
---|
1320 | return -1; |
---|
1321 | } |
---|
1322 | |
---|
1323 | if ( writering ) { |
---|
1324 | if ( roar_buffer_ring_reset(vss->writering) == -1 ) { |
---|
1325 | _seterrre(); |
---|
1326 | return -1; |
---|
1327 | } |
---|
1328 | } |
---|
1329 | |
---|
1330 | if ( readring ) { |
---|
1331 | if ( roar_buffer_ring_reset(vss->readring) == -1 ) { |
---|
1332 | _seterrre(); |
---|
1333 | return -1; |
---|
1334 | } |
---|
1335 | } |
---|
1336 | |
---|
1337 | return 0; |
---|
1338 | } |
---|
1339 | |
---|
1340 | int roar_vs_ctl (roar_vs_t * vss, roar_vs_ctlcmd cmd, void * argp, int * error) { |
---|
1341 | _ckvss(-1); |
---|
1342 | |
---|
1343 | switch (cmd) { |
---|
1344 | case ROAR_VS_CMD_NOOP: |
---|
1345 | break; |
---|
1346 | case ROAR_VS_CMD_SET_MIXER: |
---|
1347 | vss->mixerid = *(int*)argp; |
---|
1348 | break; |
---|
1349 | case ROAR_VS_CMD_GET_MIXER: |
---|
1350 | *(int*)argp = vss->mixerid; |
---|
1351 | break; |
---|
1352 | case ROAR_VS_CMD_SET_FIRST_PRIM: |
---|
1353 | vss->first_primid = *(int*)argp; |
---|
1354 | break; |
---|
1355 | case ROAR_VS_CMD_GET_FIRST_PRIM: |
---|
1356 | *(int*)argp = vss->first_primid; |
---|
1357 | break; |
---|
1358 | #ifdef _HAVE_SOCKOPT |
---|
1359 | case ROAR_VS_CMD_SET_LATC_P: |
---|
1360 | vss->latc.p = *(float*)argp; |
---|
1361 | break; |
---|
1362 | case ROAR_VS_CMD_GET_LATC_P: |
---|
1363 | *(float*)argp = vss->latc.p; |
---|
1364 | break; |
---|
1365 | case ROAR_VS_CMD_SET_LATC_TARGET: |
---|
1366 | vss->latc.target = *(float*)argp; |
---|
1367 | break; |
---|
1368 | case ROAR_VS_CMD_GET_LATC_TARGET: |
---|
1369 | *(float*)argp = vss->latc.target; |
---|
1370 | break; |
---|
1371 | case ROAR_VS_CMD_SET_LATC_WINDOW: |
---|
1372 | vss->latc.window = *(float*)argp; |
---|
1373 | break; |
---|
1374 | case ROAR_VS_CMD_GET_LATC_WINDOW: |
---|
1375 | *(float*)argp = vss->latc.window; |
---|
1376 | break; |
---|
1377 | case ROAR_VS_CMD_SET_LATC_MINLAG: |
---|
1378 | vss->latc.minlag = *(float*)argp; |
---|
1379 | break; |
---|
1380 | case ROAR_VS_CMD_GET_LATC_MINLAG: |
---|
1381 | *(float*)argp = vss->latc.minlag; |
---|
1382 | break; |
---|
1383 | #endif |
---|
1384 | // use ifndef here so warnings of unhandled enum values will be shown in DEBUG mode. |
---|
1385 | #ifndef DEBUG |
---|
1386 | default: |
---|
1387 | return -1; |
---|
1388 | break; |
---|
1389 | #endif |
---|
1390 | } |
---|
1391 | |
---|
1392 | return 0; |
---|
1393 | } |
---|
1394 | |
---|
1395 | struct roar_connection * roar_vs_connection_obj(roar_vs_t * vss, int * error) { |
---|
1396 | _ckvss(NULL); |
---|
1397 | |
---|
1398 | return vss->con; |
---|
1399 | } |
---|
1400 | |
---|
1401 | struct roar_stream * roar_vs_stream_obj (roar_vs_t * vss, int * error) { |
---|
1402 | _ckvss(NULL); |
---|
1403 | |
---|
1404 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
1405 | _seterr(ROAR_ERROR_INVAL); |
---|
1406 | return NULL; |
---|
1407 | } |
---|
1408 | |
---|
1409 | return &(vss->stream); |
---|
1410 | } |
---|
1411 | |
---|
1412 | struct roar_vio_calls * roar_vs_vio_obj (roar_vs_t * vss, int * error) { |
---|
1413 | _ckvss(NULL); |
---|
1414 | |
---|
1415 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
1416 | _seterr(ROAR_ERROR_INVAL); |
---|
1417 | return NULL; |
---|
1418 | } |
---|
1419 | |
---|
1420 | return &(vss->vio); |
---|
1421 | } |
---|
1422 | |
---|
1423 | //ll |
---|