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 | #define FLAG_CLOSEFILE 0x0008 |
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43 | #define FLAG_DIR_IN 0x1000 |
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44 | #define FLAG_DIR_OUT 0x2000 |
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45 | |
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46 | #define _initerr() do { errno = 0; roar_err_clear(); } while(0) |
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47 | #define _seterr(x) do { if ( error != NULL ) *error = (x); } while(0) |
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48 | #define _seterrre() do { _seterr(roar_errno); } while(0) |
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49 | #define _seterrse() do { roar_err_from_errno(); _seterr(roar_errno); } while(0) |
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50 | #define _ckvss(ret) do { if ( vss == NULL ) { _seterr(ROAR_ERROR_INVAL); return (ret); } } while(0) |
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51 | |
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52 | struct roar_vs { |
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53 | int flags; |
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54 | struct roar_connection con_store; |
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55 | struct roar_connection * con; |
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56 | struct roar_stream stream; |
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57 | struct roar_vio_calls vio; |
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58 | struct roar_audio_info info; |
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59 | size_t readc, writec; |
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60 | int mixerid; |
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61 | int first_primid; |
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62 | struct roar_buffer * readbuffer, * writebuffer; |
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63 | struct roar_vio_calls file_store; |
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64 | struct roar_vio_calls * file; |
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65 | }; |
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66 | |
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67 | static int _roar_vs_find_first_prim(roar_vs_t * vss); |
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68 | |
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69 | const char * roar_vs_strerr(int error) { |
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70 | const struct { |
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71 | int err; |
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72 | const char * msg; |
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73 | } msgs[] = { |
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74 | {ROAR_ERROR_NONE, "No error"}, |
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75 | {ROAR_ERROR_PERM, "Operation not permitted"}, |
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76 | {ROAR_ERROR_NOENT, "No such object, file or directory"}, |
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77 | {ROAR_ERROR_BADMSG, "Bad message"}, |
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78 | {ROAR_ERROR_BUSY, "Device or resource busy"}, |
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79 | {ROAR_ERROR_CONNREFUSED, "Connection refused"}, |
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80 | {ROAR_ERROR_NOSYS, "Function not implemented"}, |
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81 | {ROAR_ERROR_NOTSUP, "Operation not supported"}, |
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82 | {ROAR_ERROR_PIPE, "Broken pipe"}, |
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83 | {ROAR_ERROR_PROTO, "Protocol error"}, |
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84 | {ROAR_ERROR_RANGE, "Result too large or parameter out of range"}, |
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85 | {ROAR_ERROR_MSGSIZE, "Message too long"}, |
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86 | {ROAR_ERROR_NOMEM, "Not enough space"}, |
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87 | {ROAR_ERROR_INVAL, "Invalid argument"}, |
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88 | {-1, NULL} |
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89 | }; |
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90 | int i; |
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91 | |
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92 | for (i = 0; msgs[i].msg != NULL; i++) |
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93 | if ( msgs[i].err == error ) |
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94 | return msgs[i].msg; |
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95 | |
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96 | return "(unknown)"; |
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97 | } |
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98 | |
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99 | static roar_vs_t * roar_vs_init(int * error) { |
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100 | roar_vs_t * vss = roar_mm_malloc(sizeof(roar_vs_t)); |
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101 | |
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102 | if ( vss == NULL ) { |
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103 | _seterrse(); |
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104 | return NULL; |
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105 | } |
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106 | |
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107 | memset(vss, 0, sizeof(roar_vs_t)); |
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108 | |
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109 | vss->mixerid = -1; |
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110 | vss->first_primid = -1; |
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111 | |
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112 | return vss; |
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113 | } |
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114 | |
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115 | roar_vs_t * roar_vs_new_from_con(struct roar_connection * con, int * error) { |
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116 | roar_vs_t * vss = roar_vs_init(error); |
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117 | |
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118 | if ( vss == NULL ) |
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119 | return NULL; |
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120 | |
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121 | vss->con = con; |
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122 | |
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123 | return vss; |
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124 | } |
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125 | |
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126 | roar_vs_t * roar_vs_new(const char * server, const char * name, int * error) { |
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127 | roar_vs_t * vss = roar_vs_init(error); |
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128 | int ret; |
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129 | |
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130 | if ( vss == NULL ) |
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131 | return NULL; |
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132 | |
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133 | vss->con = &(vss->con_store); |
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134 | |
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135 | _initerr(); |
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136 | |
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137 | ret = roar_simple_connect(vss->con, (char*)server, (char*)name); |
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138 | |
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139 | if ( ret == -1 ) { |
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140 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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141 | _seterrre(); |
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142 | return NULL; |
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143 | } |
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144 | |
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145 | return vss; |
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146 | } |
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147 | |
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148 | int roar_vs_stream(roar_vs_t * vss, const struct roar_audio_info * info, int dir, int * error) { |
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149 | struct roar_stream_info sinfo; |
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150 | int ret; |
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151 | |
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152 | _ckvss(-1); |
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153 | |
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154 | if ( vss->flags & FLAG_STREAM ) { |
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155 | _seterr(ROAR_ERROR_INVAL); |
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156 | return -1; |
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157 | } |
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158 | |
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159 | _initerr(); |
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160 | |
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161 | if ( info != &(vss->info) ) |
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162 | memcpy(&(vss->info), info, sizeof(struct roar_audio_info)); |
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163 | |
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164 | ret = roar_vio_simple_new_stream_obj(&(vss->vio), vss->con, &(vss->stream), |
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165 | info->rate, info->channels, info->bits, info->codec, |
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166 | dir |
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167 | ); |
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168 | |
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169 | if ( ret == -1 ) { |
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170 | _seterrre(); |
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171 | return -1; |
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172 | } |
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173 | |
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174 | if ( roar_stream_get_info(vss->con, &(vss->stream), &sinfo) != -1 ) { |
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175 | vss->mixerid = sinfo.mixer; |
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176 | _roar_vs_find_first_prim(vss); |
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177 | } |
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178 | |
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179 | vss->flags |= FLAG_STREAM; |
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180 | |
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181 | switch (dir) { |
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182 | case ROAR_DIR_PLAY: vss->flags |= FLAG_DIR_OUT; break; |
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183 | } |
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184 | |
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185 | return 0; |
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186 | } |
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187 | |
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188 | roar_vs_t * roar_vs_new_simple(const char * server, const char * name, int rate, int channels, int codec, int bits, int dir, int * error) { |
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189 | roar_vs_t * vss = roar_vs_new(server, name, error); |
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190 | int ret; |
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191 | |
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192 | if (vss == NULL) |
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193 | return NULL; |
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194 | |
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195 | memset(&(vss->info), 0, sizeof(vss->info)); |
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196 | |
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197 | vss->info.rate = rate; |
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198 | vss->info.channels = channels; |
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199 | vss->info.codec = codec; |
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200 | vss->info.bits = bits; |
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201 | |
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202 | ret = roar_vs_stream(vss, &(vss->info), dir, error); |
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203 | |
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204 | if (ret == -1) { |
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205 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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206 | return NULL; |
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207 | } |
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208 | |
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209 | return vss; |
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210 | } |
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211 | |
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212 | int roar_vs_file(roar_vs_t * vss, struct roar_vio_calls * vio, int closefile, int * error) { |
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213 | _ckvss(-1); |
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214 | |
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215 | if ( vio == NULL || (closefile != ROAR_VS_TRUE && closefile != ROAR_VS_FALSE)) { |
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216 | _seterr(ROAR_ERROR_INVAL); |
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217 | return -1; |
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218 | } |
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219 | |
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220 | if ( vss->file != NULL ) { |
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221 | _seterr(ROAR_ERROR_INVAL); |
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222 | return -1; |
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223 | } |
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224 | |
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225 | vss->file = vio; |
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226 | if ( closefile == ROAR_VS_TRUE ) |
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227 | vss->flags |= FLAG_CLOSEFILE; |
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228 | |
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229 | return 0; |
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230 | } |
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231 | |
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232 | int roar_vs_file_simple(roar_vs_t * vss, char * filename, int * error) { |
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233 | struct roar_vio_defaults def; |
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234 | struct roar_vio_calls * file; |
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235 | char buf[64]; |
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236 | ssize_t ret; |
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237 | int dir = O_RDONLY; |
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238 | int codec = -1; |
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239 | const char * content_type; |
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240 | |
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241 | _ckvss(-1); |
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242 | |
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243 | if ( vss->file != NULL ) { |
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244 | _seterr(ROAR_ERROR_INVAL); |
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245 | return -1; |
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246 | } |
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247 | |
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248 | if ( vss->flags & FLAG_STREAM ) { |
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249 | switch (vss->flags & (FLAG_DIR_IN|FLAG_DIR_OUT)) { |
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250 | case FLAG_DIR_IN: dir = O_WRONLY; break; |
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251 | case FLAG_DIR_OUT: dir = O_RDONLY; break; |
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252 | case FLAG_DIR_IN|FLAG_DIR_OUT: dir = O_RDWR; break; |
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253 | default: |
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254 | _seterr(ROAR_ERROR_INVAL); |
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255 | return -1; |
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256 | } |
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257 | } |
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258 | |
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259 | file = &(vss->file_store); |
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260 | |
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261 | _initerr(); |
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262 | |
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263 | if ( roar_vio_dstr_init_defaults(&def, ROAR_VIO_DEF_TYPE_NONE, dir, 0644) == -1 ) { |
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264 | _seterrre(); |
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265 | return -1; |
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266 | } |
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267 | |
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268 | if ( roar_vio_open_dstr(file, filename, &def, 1) == -1 ) { |
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269 | _seterrre(); |
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270 | return -1; |
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271 | } |
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272 | |
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273 | if ( !(vss->flags & FLAG_STREAM) ) { |
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274 | if ( roar_vio_ctl(file, ROAR_VIO_CTL_GET_MIMETYPE, &content_type) != -1 ) { |
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275 | codec = roar_mime2codec(content_type); |
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276 | } |
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277 | |
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278 | if ( codec == -1 ) { |
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279 | ret = roar_vio_read(file, buf, sizeof(buf)); |
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280 | |
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281 | codec = roar_file_codecdetect(buf, ret); |
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282 | |
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283 | if ( codec == -1 ) { |
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284 | roar_vio_close(file); |
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285 | _seterr(ROAR_ERROR_INVAL); // Other value? |
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286 | return -1; |
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287 | } |
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288 | |
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289 | if ( roar_vio_lseek(file, 0, SEEK_SET) != 0 ) { |
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290 | roar_vio_close(file); |
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291 | _seterrre(); |
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292 | return -1; |
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293 | } |
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294 | } |
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295 | |
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296 | memset(&(vss->info), 0, sizeof(vss->info)); |
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297 | |
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298 | vss->info.rate = ROAR_RATE_DEFAULT; |
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299 | vss->info.channels = ROAR_CHANNELS_DEFAULT; |
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300 | vss->info.codec = codec; |
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301 | vss->info.bits = ROAR_BITS_DEFAULT; |
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302 | |
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303 | ret = roar_vs_stream(vss, &(vss->info), ROAR_DIR_PLAY, error); |
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304 | |
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305 | if ( ret == -1 ) { |
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306 | roar_vio_close(file); |
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307 | return -1; |
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308 | } |
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309 | } |
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310 | |
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311 | if ( roar_vs_file(vss, file, ROAR_VS_TRUE, error) == -1 ) { |
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312 | roar_vio_close(file); |
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313 | return -1; |
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314 | } |
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315 | |
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316 | return 0; |
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317 | } |
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318 | |
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319 | roar_vs_t * roar_vs_new_from_file(const char * server, const char * name, char * filename, int * error) { |
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320 | roar_vs_t * vss = roar_vs_new(server, name, error); |
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321 | |
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322 | if ( vss == NULL ) |
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323 | return NULL; |
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324 | |
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325 | if ( roar_vs_file_simple(vss, filename, error) != 0 ) { |
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326 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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327 | return NULL; |
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328 | } |
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329 | |
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330 | return vss; |
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331 | } |
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332 | |
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333 | int roar_vs_close(roar_vs_t * vss, int killit, int * error) { |
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334 | if ( killit != ROAR_VS_TRUE && killit != ROAR_VS_FALSE ) { |
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335 | _seterr(ROAR_ERROR_INVAL); |
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336 | return -1; |
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337 | } |
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338 | |
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339 | _ckvss(-1); |
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340 | |
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341 | if ( vss->readbuffer != NULL ) |
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342 | roar_buffer_free(vss->readbuffer); |
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343 | if ( vss->writebuffer != NULL ) |
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344 | roar_buffer_free(vss->writebuffer); |
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345 | |
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346 | if ( vss->file != NULL && vss->flags & FLAG_CLOSEFILE ) |
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347 | roar_vio_close(vss->file); |
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348 | |
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349 | if ( vss->flags & FLAG_STREAM ) { |
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350 | if ( killit == ROAR_VS_TRUE ) { |
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351 | roar_kick(vss->con, ROAR_OT_STREAM, roar_stream_get_id(&(vss->stream))); |
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352 | } |
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353 | |
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354 | roar_vio_close(&(vss->vio)); |
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355 | } |
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356 | |
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357 | if ( vss->con == &(vss->con_store) ) { |
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358 | roar_disconnect(vss->con); |
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359 | } |
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360 | |
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361 | roar_mm_free(vss); |
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362 | return 0; |
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363 | } |
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364 | |
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365 | ssize_t roar_vs_write(roar_vs_t * vss, const void * buf, size_t len, int * error) { |
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366 | ssize_t ret; |
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367 | |
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368 | _ckvss(-1); |
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369 | |
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370 | if ( !(vss->flags & FLAG_STREAM) ) { |
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371 | _seterr(ROAR_ERROR_INVAL); |
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372 | return -1; |
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373 | } |
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374 | |
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375 | _initerr(); |
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376 | |
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377 | ret = roar_vio_write(&(vss->vio), (void*)buf, len); |
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378 | |
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379 | if ( ret == -1 ) { |
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380 | #ifdef EAGAIN |
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381 | if ( errno == EAGAIN ) |
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382 | return 0; |
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383 | #endif |
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384 | |
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385 | #ifdef EWOULDBLOCK |
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386 | if ( errno == EWOULDBLOCK ) |
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387 | return 0; |
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388 | #endif |
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389 | |
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390 | _seterrre(); |
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391 | } else { |
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392 | vss->writec += ret; |
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393 | } |
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394 | |
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395 | return ret; |
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396 | } |
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397 | |
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398 | ssize_t roar_vs_read (roar_vs_t * vss, void * buf, size_t len, int * error) { |
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399 | ssize_t ret; |
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400 | |
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401 | _ckvss(-1); |
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402 | |
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403 | if ( !(vss->flags & FLAG_STREAM) ) { |
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404 | _seterr(ROAR_ERROR_INVAL); |
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405 | return -1; |
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406 | } |
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407 | |
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408 | _initerr(); |
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409 | |
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410 | ret = roar_vio_read(&(vss->vio), buf, len); |
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411 | |
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412 | if ( ret == -1 ) { |
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413 | _seterrre(); |
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414 | } else { |
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415 | vss->readc += ret; |
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416 | } |
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417 | |
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418 | return ret; |
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419 | } |
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420 | |
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421 | int roar_vs_sync (roar_vs_t * vss, int wait, int * error) { |
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422 | struct roar_event waits, triggered; |
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423 | |
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424 | _ckvss(-1); |
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425 | |
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426 | if ( !(vss->flags & FLAG_STREAM) ) { |
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427 | _seterr(ROAR_ERROR_INVAL); |
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428 | return -1; |
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429 | } |
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430 | |
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431 | if ( wait != ROAR_VS_NOWAIT && wait != ROAR_VS_WAIT ) { |
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432 | _seterr(ROAR_ERROR_INVAL); |
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433 | return -1; |
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434 | } |
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435 | |
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436 | _initerr(); |
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437 | |
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438 | if ( roar_vio_sync(&(vss->vio)) == -1 ) { |
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439 | _seterrre(); |
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440 | return -1; |
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441 | } |
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442 | |
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443 | if ( wait == ROAR_VS_WAIT ) { |
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444 | memset(&waits, 0, sizeof(waits)); |
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445 | waits.event = ROAR_OE_STREAM_XRUN; |
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446 | waits.emitter = -1; |
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447 | waits.target = roar_stream_get_id(&(vss->stream)); |
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448 | waits.target_type = ROAR_OT_STREAM; |
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449 | |
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450 | if ( roar_wait(vss->con, &triggered, &waits, 1) == -1 ) { |
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451 | _seterrre(); |
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452 | return -1; |
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453 | } |
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454 | } |
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455 | |
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456 | return 0; |
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457 | } |
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458 | |
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459 | int roar_vs_blocking (roar_vs_t * vss, int val, int * error) { |
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460 | int old = -1; |
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461 | |
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462 | _ckvss(-1); |
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463 | |
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464 | if ( !(vss->flags & FLAG_STREAM) ) { |
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465 | _seterr(ROAR_ERROR_INVAL); |
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466 | return -1; |
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467 | } |
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468 | |
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469 | old = vss->flags & FLAG_NONBLOCK ? ROAR_VS_FALSE : ROAR_VS_TRUE; |
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470 | |
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471 | _initerr(); |
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472 | |
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473 | switch (val) { |
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474 | case ROAR_VS_TRUE: |
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475 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_BLOCK) == -1 ) { |
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476 | _seterrre(); |
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477 | return -1; |
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478 | } |
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479 | vss->flags |= FLAG_NONBLOCK; |
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480 | vss->flags -= FLAG_NONBLOCK; |
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481 | return old; |
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482 | break; |
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483 | case ROAR_VS_FALSE: |
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484 | if ( roar_vio_nonblock(&(vss->vio), ROAR_SOCKET_NONBLOCK) == -1 ) { |
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485 | _seterrre(); |
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486 | return -1; |
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487 | } |
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488 | vss->flags |= FLAG_NONBLOCK; |
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489 | return old; |
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490 | break; |
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491 | case ROAR_VS_TOGGLE: |
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492 | if ( old == ROAR_VS_TRUE ) { |
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493 | return roar_vs_blocking(vss, ROAR_VS_FALSE, error); |
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494 | } else { |
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495 | return roar_vs_blocking(vss, ROAR_VS_TRUE, error); |
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496 | } |
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497 | break; |
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498 | case ROAR_VS_ASK: |
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499 | return old; |
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500 | break; |
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501 | } |
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502 | |
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503 | _seterr(ROAR_ERROR_INVAL); |
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504 | return -1; |
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505 | } |
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506 | |
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507 | static int _roar_vs_find_first_prim(roar_vs_t * vss) { |
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508 | struct roar_stream stream; |
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509 | struct roar_stream_info info; |
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510 | int id[ROAR_STREAMS_MAX]; |
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511 | int num; |
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512 | int i; |
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513 | |
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514 | if ( vss->first_primid != -1 ) |
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515 | return vss->first_primid; |
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516 | |
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517 | if ( vss->mixerid == -1 ) |
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518 | return -1; |
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519 | |
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520 | if ( (num = roar_list_streams(vss->con, id, ROAR_STREAMS_MAX)) == -1 ) { |
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521 | return -1; |
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522 | } |
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523 | |
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524 | for (i = 0; i < num; i++) { |
---|
525 | if ( roar_get_stream(vss->con, &stream, id[i]) == -1 ) |
---|
526 | continue; |
---|
527 | |
---|
528 | if ( stream.dir != ROAR_DIR_OUTPUT ) |
---|
529 | continue; |
---|
530 | |
---|
531 | if ( roar_stream_get_info(vss->con, &stream, &info) == -1 ) |
---|
532 | continue; |
---|
533 | |
---|
534 | if ( info.mixer == vss->mixerid ) { |
---|
535 | vss->first_primid = id[i]; |
---|
536 | return id[i]; |
---|
537 | } |
---|
538 | } |
---|
539 | |
---|
540 | return -1; |
---|
541 | } |
---|
542 | |
---|
543 | ssize_t roar_vs_position(roar_vs_t * vss, int backend, int * error) { |
---|
544 | struct roar_stream stream; |
---|
545 | struct roar_stream out_stream; |
---|
546 | struct roar_stream_info out_info; |
---|
547 | size_t offset; |
---|
548 | |
---|
549 | _ckvss(-1); |
---|
550 | |
---|
551 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
552 | _seterr(ROAR_ERROR_INVAL); |
---|
553 | return -1; |
---|
554 | } |
---|
555 | |
---|
556 | _initerr(); |
---|
557 | |
---|
558 | if ( roar_get_stream(vss->con, &stream, roar_stream_get_id(&(vss->stream))) == -1 ) { |
---|
559 | _seterrre(); |
---|
560 | return -1; |
---|
561 | } |
---|
562 | |
---|
563 | switch (backend) { |
---|
564 | case ROAR_VS_BACKEND_NONE: |
---|
565 | return stream.pos; |
---|
566 | break; |
---|
567 | case ROAR_VS_BACKEND_FIRST: |
---|
568 | // _roar_vs_find_first_prim(vss); |
---|
569 | if ( vss->first_primid == -1 ) { |
---|
570 | _seterr(ROAR_ERROR_UNKNOWN); |
---|
571 | return -1; |
---|
572 | } |
---|
573 | |
---|
574 | roar_stream_new_by_id(&out_stream, vss->first_primid); |
---|
575 | |
---|
576 | if ( roar_stream_get_info(vss->con, &out_stream, &out_info) == -1 ) { |
---|
577 | _seterrre(); |
---|
578 | return -1; |
---|
579 | } |
---|
580 | |
---|
581 | offset = out_info.delay * vss->info.rate; |
---|
582 | offset /= 1000000; |
---|
583 | |
---|
584 | return stream.pos + offset; |
---|
585 | break; |
---|
586 | default: |
---|
587 | _seterr(ROAR_ERROR_NOTSUP); |
---|
588 | return -1; |
---|
589 | break; |
---|
590 | } |
---|
591 | |
---|
592 | _seterr(ROAR_ERROR_NOSYS); |
---|
593 | return -1; |
---|
594 | } |
---|
595 | |
---|
596 | roar_mus_t roar_vs_latency(roar_vs_t * vss, int backend, int * error) { |
---|
597 | ssize_t pos = roar_vs_position(vss, backend, error); |
---|
598 | ssize_t bps; // byte per sample |
---|
599 | size_t lioc; // local IO (byte) counter |
---|
600 | size_t lpos; // local possition |
---|
601 | roar_mus_t lag; |
---|
602 | |
---|
603 | _initerr(); |
---|
604 | |
---|
605 | _ckvss(-1); |
---|
606 | |
---|
607 | if (pos == -1) { |
---|
608 | _seterrre(); |
---|
609 | return 0; |
---|
610 | } |
---|
611 | |
---|
612 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
613 | _seterr(ROAR_ERROR_INVAL); |
---|
614 | return 0; |
---|
615 | } |
---|
616 | |
---|
617 | if ( vss->writec == 0 ) { |
---|
618 | lioc = vss->readc; |
---|
619 | } else { |
---|
620 | lioc = vss->writec; |
---|
621 | } |
---|
622 | |
---|
623 | bps = roar_info2samplesize(&(vss->info)); |
---|
624 | |
---|
625 | if ( bps == -1 ) { |
---|
626 | _seterrre(); |
---|
627 | return 0; |
---|
628 | } |
---|
629 | |
---|
630 | lpos = lioc / bps; |
---|
631 | |
---|
632 | lag = (roar_mus_t)lpos - (roar_mus_t)pos; |
---|
633 | |
---|
634 | // we now have the lag in frames |
---|
635 | // return value are ms |
---|
636 | // so we need to multiply with 1s/ms and |
---|
637 | // multiply by 1/rate |
---|
638 | |
---|
639 | lag *= 1000000; // 1s/ms |
---|
640 | lag /= vss->info.rate; |
---|
641 | |
---|
642 | if ( lag == 0 ) { |
---|
643 | _seterr(ROAR_ERROR_NONE); |
---|
644 | } |
---|
645 | |
---|
646 | return lag; |
---|
647 | } |
---|
648 | |
---|
649 | static int roar_vs_flag(roar_vs_t * vss, int flag, int val, int * error) { |
---|
650 | struct roar_stream_info info; |
---|
651 | int old = -1; |
---|
652 | |
---|
653 | _ckvss(-1); |
---|
654 | |
---|
655 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
656 | _seterr(ROAR_ERROR_INVAL); |
---|
657 | return -1; |
---|
658 | } |
---|
659 | |
---|
660 | if ( val != ROAR_VS_ASK ) |
---|
661 | old = roar_vs_flag(vss, flag, ROAR_VS_ASK, error); |
---|
662 | |
---|
663 | _initerr(); |
---|
664 | |
---|
665 | switch (val) { |
---|
666 | case ROAR_VS_TRUE: |
---|
667 | case ROAR_VS_FALSE: |
---|
668 | if ( roar_stream_set_flags(vss->con, &(vss->stream), flag, |
---|
669 | val == ROAR_VS_TRUE ? ROAR_SET_FLAG : ROAR_RESET_FLAG) == -1 ) { |
---|
670 | _seterrre(); |
---|
671 | return -1; |
---|
672 | } |
---|
673 | return old; |
---|
674 | break; |
---|
675 | case ROAR_VS_TOGGLE: |
---|
676 | return roar_vs_flag(vss, flag, old == ROAR_VS_TRUE ? ROAR_VS_FALSE : ROAR_VS_TRUE, error); |
---|
677 | break; |
---|
678 | case ROAR_VS_ASK: |
---|
679 | if ( roar_stream_get_info(vss->con, &(vss->stream), &info) == -1 ) { |
---|
680 | _seterrre(); |
---|
681 | return -1; |
---|
682 | } |
---|
683 | return info.flags & flag ? ROAR_VS_TRUE : ROAR_VS_FALSE; |
---|
684 | break; |
---|
685 | } |
---|
686 | |
---|
687 | _seterr(ROAR_ERROR_INVAL); |
---|
688 | return -1; |
---|
689 | } |
---|
690 | |
---|
691 | int roar_vs_pause(roar_vs_t * vss, int val, int * error) { |
---|
692 | return roar_vs_flag(vss, ROAR_FLAG_PAUSE, val, error); |
---|
693 | } |
---|
694 | |
---|
695 | int roar_vs_mute (roar_vs_t * vss, int val, int * error) { |
---|
696 | return roar_vs_flag(vss, ROAR_FLAG_MUTE, val, error); |
---|
697 | } |
---|
698 | |
---|
699 | static int roar_vs_volume (roar_vs_t * vss, float * c, size_t channels, int * error) { |
---|
700 | struct roar_mixer_settings mixer; |
---|
701 | size_t i; |
---|
702 | register float s; |
---|
703 | int oldchannels; |
---|
704 | int handled; |
---|
705 | |
---|
706 | _ckvss(-1); |
---|
707 | |
---|
708 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
709 | _seterr(ROAR_ERROR_INVAL); |
---|
710 | return -1; |
---|
711 | } |
---|
712 | |
---|
713 | if ( channels > ROAR_MAX_CHANNELS ) { |
---|
714 | _seterr(ROAR_ERROR_INVAL); |
---|
715 | return -1; |
---|
716 | } |
---|
717 | |
---|
718 | _initerr(); |
---|
719 | |
---|
720 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &oldchannels) == -1 ) { |
---|
721 | _seterrre(); |
---|
722 | return -1; |
---|
723 | } |
---|
724 | |
---|
725 | for (i = 0; i < channels; i++) { |
---|
726 | s = c[i] * 65535.0; |
---|
727 | if ( s > 66190.0 || s < -655.0 ) { |
---|
728 | _seterr(ROAR_ERROR_RANGE); |
---|
729 | return -1; |
---|
730 | } else if ( s > 65535.0 ) { |
---|
731 | s = 65535.0; |
---|
732 | } else if ( s < 0.0 ) { |
---|
733 | s = 0.0; |
---|
734 | } |
---|
735 | mixer.mixer[i] = s; |
---|
736 | } |
---|
737 | |
---|
738 | mixer.scale = 65535; |
---|
739 | |
---|
740 | if ( channels != oldchannels ) { |
---|
741 | handled = 0; |
---|
742 | switch (oldchannels) { |
---|
743 | case 1: |
---|
744 | if ( channels == 2 ) { |
---|
745 | mixer.mixer[0] = (mixer.mixer[0] + mixer.mixer[1]) / 2; |
---|
746 | handled = 1; |
---|
747 | } |
---|
748 | break; |
---|
749 | case 2: |
---|
750 | if ( channels == 1 ) { |
---|
751 | mixer.mixer[1] = mixer.mixer[0]; |
---|
752 | handled = 1; |
---|
753 | } |
---|
754 | break; |
---|
755 | case 4: |
---|
756 | if ( channels == 1 ) { |
---|
757 | mixer.mixer[1] = mixer.mixer[0]; |
---|
758 | mixer.mixer[2] = mixer.mixer[0]; |
---|
759 | mixer.mixer[3] = mixer.mixer[0]; |
---|
760 | handled = 1; |
---|
761 | } else if ( channels == 2 ) { |
---|
762 | mixer.mixer[2] = mixer.mixer[0]; |
---|
763 | mixer.mixer[3] = mixer.mixer[1]; |
---|
764 | handled = 1; |
---|
765 | } |
---|
766 | break; |
---|
767 | } |
---|
768 | if ( handled ) { |
---|
769 | channels = oldchannels; |
---|
770 | } else { |
---|
771 | _seterr(ROAR_ERROR_INVAL); |
---|
772 | return -1; |
---|
773 | } |
---|
774 | } |
---|
775 | |
---|
776 | if ( roar_set_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, channels) == -1 ) { |
---|
777 | _seterrre(); |
---|
778 | return -1; |
---|
779 | } |
---|
780 | |
---|
781 | return 0; |
---|
782 | } |
---|
783 | |
---|
784 | int roar_vs_volume_mono (roar_vs_t * vss, float c, int * error) { |
---|
785 | return roar_vs_volume(vss, &c, 1, error); |
---|
786 | } |
---|
787 | |
---|
788 | int roar_vs_volume_stereo (roar_vs_t * vss, float l, float r, int * error) { |
---|
789 | float c[2] = {l, r}; |
---|
790 | return roar_vs_volume(vss, c, 2, error); |
---|
791 | } |
---|
792 | |
---|
793 | int roar_vs_volume_get (roar_vs_t * vss, float * l, float * r, int * error) { |
---|
794 | struct roar_mixer_settings mixer; |
---|
795 | int channels; |
---|
796 | |
---|
797 | if ( vss == NULL || l == NULL || r == NULL ) { |
---|
798 | _seterr(ROAR_ERROR_INVAL); |
---|
799 | return -1; |
---|
800 | } |
---|
801 | |
---|
802 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
803 | _seterr(ROAR_ERROR_INVAL); |
---|
804 | return -1; |
---|
805 | } |
---|
806 | |
---|
807 | _initerr(); |
---|
808 | |
---|
809 | if ( roar_get_vol(vss->con, roar_stream_get_id(&(vss->stream)), &mixer, &channels) == -1 ) { |
---|
810 | _seterrre(); |
---|
811 | return -1; |
---|
812 | } |
---|
813 | |
---|
814 | if ( channels == 1 ) |
---|
815 | mixer.mixer[1] = mixer.mixer[0]; |
---|
816 | |
---|
817 | *l = mixer.mixer[0] / (float)mixer.scale; |
---|
818 | *r = mixer.mixer[1] / (float)mixer.scale; |
---|
819 | |
---|
820 | return 0; |
---|
821 | } |
---|
822 | |
---|
823 | int roar_vs_meta (roar_vs_t * vss, struct roar_keyval * kv, size_t len, int * error) { |
---|
824 | struct roar_meta meta; |
---|
825 | size_t i; |
---|
826 | int type; |
---|
827 | int ret = 0; |
---|
828 | |
---|
829 | _ckvss(-1); |
---|
830 | |
---|
831 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
832 | _seterr(ROAR_ERROR_INVAL); |
---|
833 | return -1; |
---|
834 | } |
---|
835 | |
---|
836 | meta.type = ROAR_META_TYPE_NONE; |
---|
837 | meta.key[0] = 0; |
---|
838 | meta.value = NULL; |
---|
839 | |
---|
840 | _initerr(); |
---|
841 | |
---|
842 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_CLEAR, &meta) == -1 ) { |
---|
843 | _seterrre(); |
---|
844 | ret = -1; |
---|
845 | } |
---|
846 | |
---|
847 | for (i = 0; i < len; i++) { |
---|
848 | type = roar_meta_inttype(kv[i].key); |
---|
849 | meta.type = type; |
---|
850 | meta.value = kv[i].value; |
---|
851 | |
---|
852 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_ADD, &meta) == -1 ) { |
---|
853 | _seterrre(); |
---|
854 | ret = -1; |
---|
855 | } |
---|
856 | } |
---|
857 | |
---|
858 | meta.type = ROAR_META_TYPE_NONE; |
---|
859 | meta.key[0] = 0; |
---|
860 | meta.value = NULL; |
---|
861 | if ( roar_stream_meta_set(vss->con, &(vss->stream), ROAR_META_MODE_FINALIZE, &meta) == -1 ) { |
---|
862 | _seterrre(); |
---|
863 | ret = -1; |
---|
864 | } |
---|
865 | |
---|
866 | return ret; |
---|
867 | } |
---|
868 | |
---|
869 | int roar_vs_role (roar_vs_t * vss, int role, int * error) { |
---|
870 | _ckvss(-1); |
---|
871 | |
---|
872 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
873 | _seterr(ROAR_ERROR_INVAL); |
---|
874 | return -1; |
---|
875 | } |
---|
876 | |
---|
877 | _initerr(); |
---|
878 | |
---|
879 | if ( roar_stream_set_role(vss->con, &(vss->stream), role) == -1 ) { |
---|
880 | _seterrre(); |
---|
881 | return -1; |
---|
882 | } |
---|
883 | |
---|
884 | return 0; |
---|
885 | } |
---|
886 | |
---|
887 | |
---|
888 | int roar_vs_iterate (roar_vs_t * vss, int wait, int * error) { |
---|
889 | struct roar_vio_select vios[3]; |
---|
890 | struct roar_vio_selecttv rtv = {.sec = 0, .nsec = 1}; |
---|
891 | size_t len = 0; |
---|
892 | ssize_t i; |
---|
893 | ssize_t ret; |
---|
894 | int can_read = 0, can_write = 0; |
---|
895 | int can_flush_stream = 0, can_flush_file = 0; |
---|
896 | int is_eof = 0; |
---|
897 | void * data; |
---|
898 | |
---|
899 | _ckvss(-1); |
---|
900 | |
---|
901 | if ( wait != ROAR_VS_WAIT && wait != ROAR_VS_NOWAIT ) { |
---|
902 | _seterr(ROAR_ERROR_INVAL); |
---|
903 | return -1; |
---|
904 | } |
---|
905 | |
---|
906 | ROAR_VIO_SELECT_SETVIO(&(vios[len]), &(vss->vio), ((vss->flags & FLAG_DIR_IN ? ROAR_VIO_SELECT_READ : 0) | |
---|
907 | (vss->flags & FLAG_DIR_OUT ? ROAR_VIO_SELECT_WRITE : 0))); |
---|
908 | vios[len].ud.vp = &(vss->vio); |
---|
909 | len++; |
---|
910 | |
---|
911 | ROAR_VIO_SELECT_SETVIO(&(vios[len]), roar_get_connection_vio2(vss->con), ROAR_VIO_SELECT_READ); |
---|
912 | vios[len].ud.vp = vss->con; |
---|
913 | len++; |
---|
914 | |
---|
915 | |
---|
916 | // TODO: FIXME: need to do two select()s so we can sleep more efficently and test for both directions. |
---|
917 | // for the moment we disable file direction and hope it will not block anyway... |
---|
918 | /* |
---|
919 | if ( vss->file != NULL ) { |
---|
920 | ROAR_VIO_SELECT_SETVIO(&(vios[len]), vss->file, ((vss->flags & FLAG_DIR_IN ? ROAR_VIO_SELECT_WRITE : 0) | |
---|
921 | (vss->flags & FLAG_DIR_OUT ? ROAR_VIO_SELECT_READ : 0))); |
---|
922 | vios[len].ud.vp = vss->file; |
---|
923 | len++; |
---|
924 | } |
---|
925 | */ |
---|
926 | |
---|
927 | ret = roar_vio_select(vios, len, (wait == ROAR_VS_NOWAIT ? &rtv : NULL), NULL); |
---|
928 | |
---|
929 | // part 2 of above hack: |
---|
930 | // emulate read handle. |
---|
931 | vios[len].ud.vp = vss->file; |
---|
932 | vios[len].eventsa = ROAR_VIO_SELECT_WRITE|ROAR_VIO_SELECT_READ;; |
---|
933 | len++; |
---|
934 | |
---|
935 | // no error here nor EOF. |
---|
936 | if ( ret == 0 ) |
---|
937 | return 1; |
---|
938 | |
---|
939 | for (i = 0; i < len; i++) { |
---|
940 | if ( !vios[i].eventsa ) |
---|
941 | continue; |
---|
942 | |
---|
943 | if ( vios[i].ud.vp == &(vss->vio) ) { |
---|
944 | if ( vios[i].eventsa & ROAR_VIO_SELECT_READ ) |
---|
945 | can_read++; |
---|
946 | |
---|
947 | if ( vios[i].eventsa & ROAR_VIO_SELECT_WRITE ) { |
---|
948 | can_write++; |
---|
949 | can_flush_stream = 1; |
---|
950 | } |
---|
951 | } else if ( vios[i].ud.vp == vss->con ) { |
---|
952 | roar_sync(vss->con); |
---|
953 | } else if ( vios[i].ud.vp == vss->file ) { |
---|
954 | if ( vios[i].eventsa & ROAR_VIO_SELECT_READ ) |
---|
955 | can_write++; |
---|
956 | |
---|
957 | if ( vios[i].eventsa & ROAR_VIO_SELECT_WRITE ) { |
---|
958 | can_read++; |
---|
959 | can_flush_file = 1; |
---|
960 | } |
---|
961 | } |
---|
962 | } |
---|
963 | |
---|
964 | // TODO: FIXME: Need to correct error handling here! |
---|
965 | |
---|
966 | if ( can_flush_stream && vss->writebuffer != NULL ) { |
---|
967 | if ( roar_buffer_get_data(vss->writebuffer, &data) == -1 ) |
---|
968 | return -1; |
---|
969 | |
---|
970 | if ( roar_buffer_get_len(vss->writebuffer, &len) == -1 ) |
---|
971 | return -1; |
---|
972 | |
---|
973 | ret = roar_vs_write(vss, data, len, error); |
---|
974 | |
---|
975 | if ( ret == -1 ) { |
---|
976 | return -1; |
---|
977 | } else if ( ret == len ) { |
---|
978 | roar_buffer_free(vss->writebuffer); |
---|
979 | vss->writebuffer = NULL; |
---|
980 | } else { |
---|
981 | if ( roar_buffer_set_offset(vss->writebuffer, ret) == -1 ) |
---|
982 | return -1; |
---|
983 | } |
---|
984 | } |
---|
985 | |
---|
986 | if ( can_flush_file && vss->readbuffer != NULL ) { |
---|
987 | if ( roar_buffer_get_data(vss->readbuffer, &data) == -1 ) |
---|
988 | return -1; |
---|
989 | |
---|
990 | if ( roar_buffer_get_len(vss->readbuffer, &len) == -1 ) |
---|
991 | return -1; |
---|
992 | |
---|
993 | ret = roar_vio_write(vss->file, data, len); |
---|
994 | |
---|
995 | if ( ret == -1 ) { |
---|
996 | return -1; |
---|
997 | } else if ( ret == len ) { |
---|
998 | roar_buffer_free(vss->readbuffer); |
---|
999 | vss->readbuffer = NULL; |
---|
1000 | } else { |
---|
1001 | if ( roar_buffer_set_offset(vss->readbuffer, ret) == -1 ) |
---|
1002 | return -1; |
---|
1003 | } |
---|
1004 | } |
---|
1005 | |
---|
1006 | #define _READ_SIZE 1024 |
---|
1007 | |
---|
1008 | if ( can_read == 2 && vss->readbuffer == NULL ) { |
---|
1009 | if ( roar_buffer_new_data(&(vss->readbuffer), (len = _READ_SIZE), &data) == -1 ) |
---|
1010 | return -1; |
---|
1011 | |
---|
1012 | ret = roar_vs_read(vss, data, len, error); |
---|
1013 | |
---|
1014 | if ( ret == -1 ) { |
---|
1015 | roar_buffer_free(vss->readbuffer); |
---|
1016 | vss->readbuffer = NULL; |
---|
1017 | return -1; |
---|
1018 | } else if ( ret == 0 ) { |
---|
1019 | is_eof = 1; |
---|
1020 | roar_buffer_free(vss->readbuffer); |
---|
1021 | vss->readbuffer = NULL; |
---|
1022 | } else { |
---|
1023 | len = ret; |
---|
1024 | if ( roar_buffer_set_len(vss->readbuffer, len) == -1 ) |
---|
1025 | return -1; |
---|
1026 | |
---|
1027 | ret = roar_vio_write(vss->file, data, len); |
---|
1028 | |
---|
1029 | if ( ret == -1 ) { |
---|
1030 | return -1; |
---|
1031 | } else if ( ret == len ) { |
---|
1032 | roar_buffer_free(vss->readbuffer); |
---|
1033 | vss->readbuffer = NULL; |
---|
1034 | } else { |
---|
1035 | if ( roar_buffer_set_offset(vss->readbuffer, ret) == -1 ) |
---|
1036 | return -1; |
---|
1037 | } |
---|
1038 | } |
---|
1039 | } |
---|
1040 | |
---|
1041 | if ( can_write == 2 && vss->writebuffer == NULL ) { |
---|
1042 | if ( roar_buffer_new_data(&(vss->writebuffer), (len = _READ_SIZE), &data) == -1 ) |
---|
1043 | return -1; |
---|
1044 | |
---|
1045 | ret = roar_vio_read(vss->file, data, len); |
---|
1046 | |
---|
1047 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p): ret=%lli", vss, wait, error, (long long int)ret); |
---|
1048 | |
---|
1049 | if ( ret == -1 ) { |
---|
1050 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
1051 | |
---|
1052 | roar_buffer_free(vss->writebuffer); |
---|
1053 | vss->writebuffer = NULL; |
---|
1054 | return -1; |
---|
1055 | } else if ( ret == 0 ) { |
---|
1056 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
1057 | |
---|
1058 | is_eof = 1; |
---|
1059 | roar_buffer_free(vss->writebuffer); |
---|
1060 | vss->writebuffer = NULL; |
---|
1061 | } else { |
---|
1062 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
1063 | |
---|
1064 | if ( len != ret ) { |
---|
1065 | len = ret; |
---|
1066 | if ( roar_buffer_set_len(vss->writebuffer, len) == -1 ) |
---|
1067 | return -1; |
---|
1068 | } |
---|
1069 | |
---|
1070 | ROAR_DBG("roar_vs_iterate(vss=%p, wait=%i, error=%p) = ?", vss, wait, error); |
---|
1071 | |
---|
1072 | ret = roar_vs_write(vss, data, len, error); |
---|
1073 | |
---|
1074 | if ( ret == -1 ) { |
---|
1075 | return -1; |
---|
1076 | } else if ( ret == len ) { |
---|
1077 | roar_buffer_free(vss->writebuffer); |
---|
1078 | vss->writebuffer = NULL; |
---|
1079 | } else { |
---|
1080 | if ( roar_buffer_set_offset(vss->writebuffer, ret) == -1 ) |
---|
1081 | return -1; |
---|
1082 | } |
---|
1083 | } |
---|
1084 | } |
---|
1085 | |
---|
1086 | return is_eof ? 0 : 1; |
---|
1087 | } |
---|
1088 | |
---|
1089 | int roar_vs_run (roar_vs_t * vss, int * error) { |
---|
1090 | int ret; |
---|
1091 | |
---|
1092 | _ckvss(-1); |
---|
1093 | |
---|
1094 | while ((ret = roar_vs_iterate(vss, ROAR_VS_WAIT, error)) > 0); |
---|
1095 | |
---|
1096 | ROAR_DBG("roar_vs_run(vss=%p, error=%p): ret=%i", vss, error, ret); |
---|
1097 | |
---|
1098 | if ( ret == 0 ) { |
---|
1099 | // flush buffers: |
---|
1100 | roar_vs_iterate(vss, ROAR_VS_WAIT, error); |
---|
1101 | } |
---|
1102 | |
---|
1103 | if ( roar_vs_sync(vss, ROAR_VS_WAIT, error) == -1 ) |
---|
1104 | return -1; |
---|
1105 | |
---|
1106 | return ret; |
---|
1107 | } |
---|
1108 | |
---|
1109 | |
---|
1110 | struct roar_connection * roar_vs_connection_obj(roar_vs_t * vss, int * error) { |
---|
1111 | _ckvss(NULL); |
---|
1112 | |
---|
1113 | return vss->con; |
---|
1114 | } |
---|
1115 | |
---|
1116 | struct roar_stream * roar_vs_stream_obj (roar_vs_t * vss, int * error) { |
---|
1117 | _ckvss(NULL); |
---|
1118 | |
---|
1119 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
1120 | _seterr(ROAR_ERROR_INVAL); |
---|
1121 | return NULL; |
---|
1122 | } |
---|
1123 | |
---|
1124 | return &(vss->stream); |
---|
1125 | } |
---|
1126 | |
---|
1127 | struct roar_vio_calls * roar_vs_vio_obj (roar_vs_t * vss, int * error) { |
---|
1128 | _ckvss(NULL); |
---|
1129 | |
---|
1130 | if ( !(vss->flags & FLAG_STREAM) ) { |
---|
1131 | _seterr(ROAR_ERROR_INVAL); |
---|
1132 | return NULL; |
---|
1133 | } |
---|
1134 | |
---|
1135 | return &(vss->vio); |
---|
1136 | } |
---|
1137 | |
---|
1138 | //ll |
---|