1 | //simple.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2012 |
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5 | * The code (may) include prototypes and comments (and maybe |
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6 | * other code fragements) from libpulse*. They are mostly copyrighted by: |
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7 | * Lennart Poettering <poettering@users.sourceforge.net> and |
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8 | * Pierre Ossman <drzeus@drzeus.cx> |
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9 | * |
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10 | * This file is part of libroarpulse a part of RoarAudio, |
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11 | * a cross-platform sound system for both, home and professional use. |
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12 | * See README for details. |
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13 | * |
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14 | * This file is free software; you can redistribute it and/or modify |
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15 | * it under the terms of the GNU General Public License version 3 |
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16 | * as published by the Free Software Foundation. |
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17 | * |
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18 | * RoarAudio is distributed in the hope that it will be useful, |
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19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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21 | * GNU General Public License for more details. |
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22 | * |
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23 | * You should have received a copy of the GNU General Public License |
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24 | * along with this software; see the file COPYING. If not, write to |
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25 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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26 | * Boston, MA 02110-1301, USA. |
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27 | * |
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28 | * NOTE for everyone want's to change something and send patches: |
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29 | * read README and HACKING! There a addition information on |
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30 | * the license of this document you need to read before you send |
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31 | * any patches. |
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32 | * |
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33 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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34 | * or libpulse*: |
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35 | * The libs libroaresd, libroararts and libroarpulse link this libroar |
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36 | * and are therefore GPL. Because of this it may be illigal to use |
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37 | * them with any software that uses libesd, libartsc or libpulse*. |
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38 | */ |
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39 | |
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40 | #include <libroarpulse/libroarpulse.h> |
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41 | |
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42 | #define _seterr() if ( error != NULL ) { *error = roar_pa_raerror2paerror(err); } |
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43 | |
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44 | /** Create a new connection to the server */ |
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45 | pa_simple* pa_simple_new( |
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46 | const char *server, /**< Server name, or NULL for default */ |
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47 | const char *name, /**< A descriptive name for this client (application name, ...) */ |
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48 | pa_stream_direction_t dir, /**< Open this stream for recording or playback? */ |
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49 | const char *dev, /**< Sink (resp. source) name, or NULL for default */ |
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50 | const char *stream_name, /**< A descriptive name for this client (application name, song title, ...) */ |
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51 | const pa_sample_spec *ss, /**< The sample type to use */ |
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52 | const pa_channel_map *map, /**< The channel map to use, or NULL for default */ |
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53 | const pa_buffer_attr *attr, /**< Buffering attributes, or NULL for default */ |
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54 | int *error /**< A pointer where the error code is stored when the routine returns NULL. It is OK to pass NULL here. */ |
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55 | ) { |
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56 | struct roar_keyval kv[1]; |
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57 | roar_vs_t * vss = NULL; |
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58 | struct roar_audio_info info; |
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59 | int roar_dir; |
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60 | int err = ROAR_ERROR_NONE; |
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61 | |
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62 | if ( dev != NULL || map != NULL || attr != NULL ) |
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63 | return NULL; |
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64 | |
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65 | if ( dir == PA_STREAM_PLAYBACK ) { |
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66 | roar_dir = ROAR_DIR_PLAY; |
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67 | } else if ( dir == PA_STREAM_RECORD ) { |
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68 | roar_dir = ROAR_DIR_RECORD; |
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69 | } else { |
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70 | return NULL; |
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71 | } |
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72 | |
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73 | if ( roar_pa_sspec2auinfo(&info, ss) == -1 ) { |
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74 | return NULL; |
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75 | } |
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76 | |
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77 | server = roar_pa_find_server((char*)server); |
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78 | |
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79 | vss = roar_vs_new(server, name, &err); |
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80 | if ( vss == NULL ) { |
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81 | _seterr(); |
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82 | return NULL; |
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83 | } |
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84 | |
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85 | if ( roar_vs_stream(vss, &info, roar_dir, &err) == -1 ) { |
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86 | roar_vs_close(vss, ROAR_VS_TRUE, NULL); |
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87 | _seterr(); |
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88 | return NULL; |
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89 | } |
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90 | |
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91 | if ( stream_name != NULL && stream_name[0] != 0 ) { |
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92 | kv[0].key = "DESCRIPTION"; |
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93 | kv[0].value = (char*)stream_name; |
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94 | |
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95 | roar_vs_meta(vss, kv, 1, NULL); |
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96 | } |
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97 | |
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98 | return (pa_simple*) vss; |
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99 | } |
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100 | |
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101 | /** Close and free the connection to the server. The connection objects becomes invalid when this is called. */ |
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102 | void pa_simple_free(pa_simple *s) { |
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103 | if ( s == NULL ) |
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104 | return; |
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105 | |
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106 | roar_vs_close((roar_vs_t*)s, ROAR_VS_FALSE, NULL); |
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107 | } |
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108 | |
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109 | /** Write some data to the server */ |
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110 | int pa_simple_write(pa_simple *s, const void*data, size_t length, int *error) { |
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111 | int ret; |
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112 | int err = ROAR_ERROR_NONE; |
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113 | |
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114 | if ( s == NULL ) |
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115 | return -1; |
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116 | |
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117 | ret = roar_vs_write((roar_vs_t*)s, data, length, &err); |
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118 | |
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119 | _seterr(); |
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120 | |
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121 | return ret; |
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122 | } |
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123 | |
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124 | /** Wait until all data already written is played by the daemon */ |
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125 | int pa_simple_drain(pa_simple *s, int *error) { |
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126 | int ret; |
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127 | int err = ROAR_ERROR_NONE; |
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128 | |
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129 | if ( s == NULL ) |
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130 | return -1; |
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131 | |
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132 | ret = roar_vs_sync((roar_vs_t*)s, ROAR_VS_WAIT, &err); |
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133 | |
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134 | _seterr(); |
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135 | |
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136 | return ret; |
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137 | } |
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138 | |
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139 | /** Read some data from the server */ |
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140 | int pa_simple_read(pa_simple *s, void*data, size_t length, int *error) { |
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141 | int ret; |
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142 | int err = ROAR_ERROR_NONE; |
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143 | |
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144 | if ( s == NULL ) |
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145 | return -1; |
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146 | |
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147 | ret = roar_vs_read((roar_vs_t*)s, data, length, &err); |
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148 | |
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149 | _seterr(); |
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150 | |
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151 | return ret; |
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152 | } |
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153 | |
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154 | /** Return the playback latency. \since 0.5 */ |
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155 | pa_usec_t pa_simple_get_latency(pa_simple *s, int *error) { |
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156 | roar_mus_t ret; |
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157 | int err = ROAR_ERROR_NONE; |
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158 | |
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159 | if ( s == NULL ) |
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160 | return -1; |
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161 | |
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162 | ret = roar_vs_latency((roar_vs_t*)s, ROAR_VS_BACKEND_DEFAULT, ROAR_VS_WAIT, &err); |
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163 | |
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164 | if ( ret < 0 ) |
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165 | ret *= -1; |
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166 | |
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167 | if ( ret == 0 && err != ROAR_ERROR_NONE ) { |
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168 | _seterr(); |
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169 | return -1; |
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170 | } |
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171 | |
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172 | return ret; |
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173 | } |
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174 | |
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175 | /** Flush the playback buffer. \since 0.5 */ |
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176 | int pa_simple_flush(pa_simple *s, int *error) { |
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177 | int ret; |
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178 | int err = ROAR_ERROR_NONE; |
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179 | |
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180 | if ( s == NULL ) |
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181 | return -1; |
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182 | |
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183 | ret = roar_vs_sync((roar_vs_t*)s, ROAR_VS_NOWAIT, &err); |
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184 | |
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185 | _seterr(); |
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186 | |
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187 | return ret; |
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188 | } |
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189 | |
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190 | //ll |
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