1 | //stream.c: |
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2 | |
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3 | #include "libroar.h" |
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4 | |
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5 | int roar_stream_connect (struct roar_connection * con, struct roar_stream * s, int dir) { |
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6 | struct roar_message m; |
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7 | |
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8 | s->dir = dir; |
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9 | |
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10 | m.cmd = ROAR_CMD_NEW_STREAM; |
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11 | m.stream = -1; |
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12 | m.pos = 0; |
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13 | |
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14 | roar_stream_s2m(s, &m); |
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15 | |
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16 | if ( roar_req(con, &m, NULL) != 0 ) |
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17 | return -1; |
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18 | |
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19 | if ( m.cmd == ROAR_CMD_OK ) { |
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20 | s->id = m.stream; |
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21 | |
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22 | ROAR_DBG("roar_stream_connect(*) = 0"); |
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23 | return 0; |
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24 | } |
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25 | |
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26 | ROAR_ERR("roar_stream_connect(*): Connecting new stream faild!"); |
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27 | ROAR_DBG("roar_stream_connect(*) = -1"); |
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28 | return -1; |
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29 | } |
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30 | |
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31 | int roar_stream_new (struct roar_stream * s, unsigned int rate, |
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32 | unsigned int channels, unsigned int bits, unsigned int codec) { |
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33 | |
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34 | |
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35 | s->fh = -1; |
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36 | s->id = -1; |
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37 | s->pos = 0; |
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38 | s->pos_rel_id = -1; |
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39 | |
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40 | s->dir = ROAR_DIR_DEFAULT; |
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41 | |
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42 | s->datalen = 0; |
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43 | s->offset = 0; |
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44 | |
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45 | s->database = NULL; |
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46 | s->dataoff = NULL; |
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47 | |
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48 | s->info.rate = rate; |
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49 | s->info.channels = channels; |
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50 | s->info.bits = bits; |
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51 | s->info.codec = codec; |
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52 | |
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53 | if ( bits > ROAR_BITS_MAX ) |
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54 | return -1; |
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55 | |
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56 | return 0; |
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57 | } |
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58 | |
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59 | int roar_stream_exec (struct roar_connection * con, struct roar_stream * s) { |
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60 | struct roar_message m; |
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61 | |
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62 | m.cmd = ROAR_CMD_EXEC_STREAM; |
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63 | m.stream = s->id; |
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64 | m.datalen = 0; |
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65 | m.pos = 0; |
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66 | |
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67 | if ( roar_req(con, &m, NULL) == -1 ) |
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68 | return -1; |
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69 | |
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70 | if ( m.cmd == ROAR_CMD_OK ) |
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71 | return 0; |
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72 | return -1; |
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73 | } |
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74 | |
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75 | int roar_stream_connect_to (struct roar_connection * con, struct roar_stream * s, int type, char * host, int port) { |
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76 | struct roar_message m; |
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77 | |
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78 | if ( roar_stream_connect_to_ask(con, s, type, host, port) == -1 ) |
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79 | return -1; |
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80 | |
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81 | if ( roar_recv_message(con, &m, NULL) == -1 ) |
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82 | return -1; |
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83 | |
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84 | if ( m.cmd == ROAR_CMD_OK ) |
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85 | return 0; |
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86 | return -1; |
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87 | } |
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88 | |
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89 | int roar_stream_connect_to_ask (struct roar_connection * con, struct roar_stream * s, int type, char * host, int port) { |
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90 | struct roar_message m; |
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91 | int len = 0; |
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92 | |
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93 | if ( host == NULL ) |
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94 | return -1; |
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95 | |
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96 | ROAR_DBG("roar_stream_connect_to_ask(*): Ask the server to connect to: %s:%i", host, port); |
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97 | |
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98 | m.cmd = ROAR_CMD_CON_STREAM; |
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99 | m.stream = s->id; |
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100 | m.pos = 0; |
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101 | |
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102 | m.data[0] = 0; |
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103 | m.data[1] = type; |
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104 | ((uint16_t*)&(m.data))[1] = ROAR_HOST2NET16(port); |
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105 | |
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106 | len = strlen(host); |
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107 | |
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108 | if ( len > 76 ) |
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109 | return -1; |
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110 | |
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111 | strncpy(&(m.data[4]), host, len); |
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112 | |
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113 | m.datalen = len + 4; |
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114 | |
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115 | if ( roar_send_message(con, &m, NULL) == -1 ) |
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116 | return -1; |
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117 | |
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118 | return 0; |
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119 | } |
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120 | |
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121 | int roar_stream_add_data (struct roar_connection * con, struct roar_stream * s, char * data, size_t len) { |
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122 | struct roar_message m; |
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123 | |
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124 | m.cmd = ROAR_CMD_ADD_DATA; |
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125 | m.stream = s->id; |
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126 | m.pos = 0; |
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127 | m.datalen = len; |
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128 | |
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129 | // if ( roar_req(con, &m, (void**)&data) == -1 ) |
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130 | // return -1; |
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131 | if ( roar_send_message(con, &m, data) != 0 ) |
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132 | return -1; |
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133 | |
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134 | if ( roar_recv_message(con, &m, NULL) == -1 ) |
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135 | return -1; |
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136 | |
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137 | if ( m.cmd == ROAR_CMD_OK ) |
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138 | return 0; |
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139 | return -1; |
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140 | } |
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141 | |
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142 | int roar_stream_send_data (struct roar_connection * con, struct roar_stream * s, char * data, size_t len) { |
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143 | if ( ! s ) |
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144 | return -1; |
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145 | |
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146 | if ( s->fh == -1 ) { |
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147 | if ( !con ) |
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148 | return -1; |
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149 | |
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150 | if ( roar_stream_add_data(con, s, data, len) == -1 ) |
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151 | return -1; |
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152 | |
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153 | return len; |
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154 | } |
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155 | |
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156 | return write(s->fh, data, len); |
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157 | } |
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158 | |
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159 | int roar_stream_get_info (struct roar_connection * con, struct roar_stream * s, struct roar_stream_info * info) { |
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160 | struct roar_message m; |
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161 | uint16_t * data = (uint16_t *) m.data; |
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162 | int i; |
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163 | |
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164 | m.cmd = ROAR_CMD_GET_STREAM_PARA; |
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165 | m.stream = s->id; |
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166 | m.datalen = 4; |
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167 | m.pos = 0; |
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168 | |
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169 | data[0] = 0; // Version and reserved |
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170 | data[1] = 1; // stream |
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171 | |
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172 | for (i = 0; i < m.datalen/2; i++) { |
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173 | data[i] = ROAR_HOST2NET16(data[i]); |
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174 | } |
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175 | |
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176 | if ( roar_req(con, &m, NULL) == -1 ) |
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177 | return -1; |
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178 | |
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179 | if ( m.cmd != ROAR_CMD_OK ) |
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180 | return -1; |
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181 | |
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182 | for (i = 0; i < m.datalen/2; i++) { |
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183 | data[i] = ROAR_NET2HOST16(data[i]); |
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184 | } |
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185 | |
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186 | if ( m.datalen < 3*2 ) |
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187 | return -1; |
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188 | |
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189 | if ( data[0] != 0 || data[1] != 1 ) |
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190 | return -1; |
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191 | |
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192 | info->block_size = data[2]; |
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193 | info->pre_underruns = data[3]; |
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194 | info->post_underruns = data[4]; |
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195 | |
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196 | return 0; |
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197 | } |
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198 | |
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199 | #define _ROAR_STREAM_MESSAGE_LEN ((5+1)*4) |
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200 | |
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201 | int roar_stream_s2m (struct roar_stream * s, struct roar_message * m) { |
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202 | uint32_t * data; |
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203 | int i; |
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204 | |
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205 | if ( !(s && m) ) |
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206 | return -1; |
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207 | |
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208 | m->datalen = _ROAR_STREAM_MESSAGE_LEN; |
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209 | data = (uint32_t*) m->data; |
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210 | |
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211 | data[0] = s->dir; |
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212 | data[1] = s->pos_rel_id; |
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213 | data[2] = s->info.rate; |
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214 | data[3] = s->info.bits; |
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215 | data[4] = s->info.channels; |
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216 | data[5] = s->info.codec; |
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217 | |
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218 | for (i = 0; i < _ROAR_STREAM_MESSAGE_LEN/4; i++) |
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219 | data[i] = ROAR_HOST2NET32(data[i]); |
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220 | |
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221 | ROAR_DBG("roar_stream_s2m(*): s->info:"); |
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222 | roar_debug_audio_info_print(&s->info); |
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223 | |
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224 | return 0; |
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225 | } |
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226 | int roar_stream_m2s (struct roar_stream * s, struct roar_message * m) { |
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227 | uint32_t * data; |
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228 | int i; |
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229 | |
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230 | if ( !(s && m) ) |
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231 | return -1; |
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232 | |
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233 | if ( m->datalen != _ROAR_STREAM_MESSAGE_LEN ) |
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234 | return -1; |
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235 | |
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236 | data = (uint32_t*) m->data; |
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237 | |
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238 | for (i = 0; i < _ROAR_STREAM_MESSAGE_LEN/4; i++) |
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239 | data[i] = ROAR_NET2HOST32(data[i]); |
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240 | |
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241 | s->id = m->stream; |
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242 | s->dir = data[0]; |
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243 | s->pos_rel_id = data[1]; |
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244 | s->info.rate = data[2]; |
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245 | s->info.bits = data[3]; |
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246 | s->info.channels = data[4]; |
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247 | s->info.codec = data[5]; |
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248 | |
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249 | ROAR_DBG("roar_stream_m2s(*): s->info:"); |
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250 | roar_debug_audio_info_print(&s->info); |
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251 | |
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252 | return 0; |
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253 | } |
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254 | |
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255 | //ll |
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