1 | /* |
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2 | Copyright (C) 2003 Paul Brossier |
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3 | |
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4 | This program is free software; you can redistribute it and/or modify |
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5 | it under the terms of the GNU General Public License as published by |
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6 | the Free Software Foundation; either version 2 of the License, or |
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7 | (at your option) any later version. |
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8 | |
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9 | This program is distributed in the hope that it will be useful, |
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10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | GNU General Public License for more details. |
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13 | |
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14 | You should have received a copy of the GNU General Public License |
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15 | along with this program; if not, write to the Free Software |
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16 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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17 | |
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18 | */ |
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19 | |
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20 | #include <aubio.h> |
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21 | |
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22 | #if HAVE_JACK |
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23 | #include <jack/jack.h> |
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24 | #include "aubio_priv.h" |
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25 | #include "jackio.h" |
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26 | |
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27 | typedef jack_default_audio_sample_t jack_sample_t; |
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28 | |
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29 | #if !AUBIO_SINGLE_PRECISION |
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30 | #define AUBIO_JACK_MAX_FRAMES 4096 |
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31 | #define AUBIO_JACK_NEEDS_CONVERSION |
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32 | #endif |
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33 | |
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34 | /** |
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35 | * jack device structure |
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36 | */ |
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37 | struct _aubio_jack_t { |
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38 | /** jack client */ |
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39 | jack_client_t *client; |
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40 | /** jack output ports */ |
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41 | jack_port_t **oports; |
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42 | /** jack input ports */ |
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43 | jack_port_t **iports; |
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44 | /** jack input buffer */ |
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45 | jack_sample_t **ibufs; |
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46 | /** jack output buffer */ |
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47 | jack_sample_t **obufs; |
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48 | #ifdef AUBIO_JACK_NEEDS_CONVERSION |
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49 | /** converted jack input buffer */ |
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50 | smpl_t **sibufs; |
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51 | /** converted jack output buffer */ |
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52 | smpl_t **sobufs; |
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53 | #endif |
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54 | /** jack input channels */ |
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55 | uint_t ichan; |
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56 | /** jack output channels */ |
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57 | uint_t ochan; |
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58 | /** jack samplerate (Hz) */ |
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59 | uint_t samplerate; |
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60 | /** jack processing function */ |
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61 | aubio_process_func_t callback; |
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62 | }; |
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63 | |
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64 | /* static memory management */ |
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65 | static aubio_jack_t * aubio_jack_alloc(uint_t ichan, uint_t ochan); |
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66 | static uint_t aubio_jack_free(aubio_jack_t * jack_setup); |
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67 | /* jack callback functions */ |
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68 | static int aubio_jack_process(jack_nframes_t nframes, void *arg); |
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69 | static void aubio_jack_shutdown (void *arg); |
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70 | |
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71 | aubio_jack_t * new_aubio_jack(uint_t ichan, uint_t ochan, |
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72 | aubio_process_func_t callback) { |
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73 | aubio_jack_t * jack_setup = aubio_jack_alloc (ichan, ochan); |
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74 | uint_t i; |
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75 | char * client_name = "aubio"; |
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76 | char name[64]; |
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77 | /* initial jack client setup */ |
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78 | if ((jack_setup->client = jack_client_new (client_name)) == 0) { |
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79 | AUBIO_ERR ("jack server not running?\n"); |
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80 | AUBIO_QUIT(AUBIO_FAIL); |
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81 | } |
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82 | |
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83 | /* set callbacks */ |
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84 | jack_set_process_callback (jack_setup->client, aubio_jack_process, |
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85 | (void*) jack_setup); |
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86 | jack_on_shutdown (jack_setup->client, aubio_jack_shutdown, |
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87 | (void*) jack_setup); |
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88 | |
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89 | /* register jack output ports */ |
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90 | for (i = 0; i < ochan; i++) |
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91 | { |
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92 | AUBIO_SPRINTF(name, "out_%d", i+1); |
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93 | AUBIO_MSG("%s\n", name); |
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94 | if ((jack_setup->oports[i] = |
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95 | jack_port_register (jack_setup->client, name, |
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96 | JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0)) == 0) |
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97 | { |
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98 | AUBIO_ERR("failed registering output port \"%s\"!\n", name); |
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99 | jack_client_close (jack_setup->client); |
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100 | AUBIO_QUIT(AUBIO_FAIL); |
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101 | } |
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102 | } |
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103 | |
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104 | /* register jack input ports */ |
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105 | for (i = 0; i < ichan; i++) |
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106 | { |
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107 | AUBIO_SPRINTF(name, "in_%d", i+1); |
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108 | AUBIO_MSG("%s\n", name); |
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109 | if ((jack_setup->iports[i] = |
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110 | jack_port_register (jack_setup->client, name, |
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111 | JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0)) == 0) |
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112 | { |
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113 | AUBIO_ERR("failed registering input port \"%s\"!\n", name); |
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114 | jack_client_close (jack_setup->client); |
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115 | AUBIO_QUIT(AUBIO_FAIL); |
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116 | } |
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117 | } |
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118 | |
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119 | /* set processing callback */ |
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120 | jack_setup->callback = callback; |
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121 | return jack_setup; |
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122 | } |
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123 | |
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124 | uint_t aubio_jack_activate(aubio_jack_t *jack_setup) { |
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125 | /* get sample rate */ |
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126 | jack_setup->samplerate = jack_get_sample_rate (jack_setup->client); |
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127 | /* actual jack process activation */ |
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128 | if (jack_activate (jack_setup->client)) |
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129 | { |
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130 | AUBIO_ERR("jack client activation failed"); |
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131 | return 1; |
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132 | } |
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133 | return 0; |
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134 | } |
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135 | |
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136 | void aubio_jack_close(aubio_jack_t *jack_setup) { |
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137 | /* bug : should disconnect all ports first */ |
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138 | jack_client_close(jack_setup->client); |
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139 | aubio_jack_free(jack_setup); |
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140 | } |
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141 | |
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142 | /* memory management */ |
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143 | static aubio_jack_t * aubio_jack_alloc(uint_t ichan, uint_t ochan) { |
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144 | aubio_jack_t *jack_setup = AUBIO_NEW(aubio_jack_t); |
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145 | jack_setup->ichan = ichan; |
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146 | jack_setup->ochan = ochan; |
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147 | jack_setup->oports = AUBIO_ARRAY(jack_port_t*, ichan); |
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148 | jack_setup->iports = AUBIO_ARRAY(jack_port_t*, ochan); |
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149 | jack_setup->ibufs = AUBIO_ARRAY(jack_sample_t*, ichan); |
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150 | jack_setup->obufs = AUBIO_ARRAY(jack_sample_t*, ochan); |
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151 | #ifdef AUBIO_JACK_NEEDS_CONVERSION |
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152 | jack_setup->sibufs = AUBIO_ARRAY(smpl_t*, ichan); |
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153 | uint_t i; |
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154 | for (i = 0; i < ichan; i++) { |
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155 | jack_setup->sibufs[i] = AUBIO_ARRAY(smpl_t, AUBIO_JACK_MAX_FRAMES); |
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156 | } |
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157 | jack_setup->sobufs = AUBIO_ARRAY(smpl_t*, ochan); |
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158 | for (i = 0; i < ochan; i++) { |
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159 | jack_setup->sobufs[i] = AUBIO_ARRAY(smpl_t, AUBIO_JACK_MAX_FRAMES); |
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160 | } |
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161 | #endif |
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162 | return jack_setup; |
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163 | } |
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164 | |
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165 | static uint_t aubio_jack_free(aubio_jack_t * jack_setup) { |
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166 | AUBIO_FREE(jack_setup->oports); |
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167 | AUBIO_FREE(jack_setup->iports); |
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168 | AUBIO_FREE(jack_setup->ibufs ); |
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169 | AUBIO_FREE(jack_setup->obufs ); |
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170 | AUBIO_FREE(jack_setup); |
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171 | return AUBIO_OK; |
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172 | } |
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173 | |
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174 | /* jack callback functions */ |
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175 | static void aubio_jack_shutdown (void *arg UNUSED){ |
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176 | AUBIO_ERR("jack shutdown\n"); |
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177 | AUBIO_QUIT(AUBIO_OK); |
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178 | } |
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179 | |
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180 | static int aubio_jack_process(jack_nframes_t nframes, void *arg) { |
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181 | aubio_jack_t* dev = (aubio_jack_t *)arg; |
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182 | uint_t i; |
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183 | for (i=0;i<dev->ichan;i++) { |
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184 | /* get readable input */ |
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185 | dev->ibufs[i] = |
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186 | (jack_sample_t *) jack_port_get_buffer (dev->iports[i], nframes); |
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187 | /* get writable output */ |
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188 | dev->obufs[i] = |
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189 | (jack_sample_t *) jack_port_get_buffer (dev->oports[i], nframes); |
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190 | } |
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191 | #ifndef AUBIO_JACK_NEEDS_CONVERSION |
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192 | dev->callback(dev->ibufs,dev->obufs,nframes); |
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193 | #else |
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194 | uint_t j; |
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195 | for (j = 0; j < MIN(nframes, AUBIO_JACK_MAX_FRAMES); j++) { |
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196 | for (i = 0; i < dev->ichan; i++) { |
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197 | dev->sibufs[i][j] = (smpl_t)dev->ibufs[i][j]; |
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198 | } |
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199 | } |
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200 | dev->callback(dev->sibufs, dev->sobufs, nframes); |
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201 | for (j = 0; j < MIN(nframes, AUBIO_JACK_MAX_FRAMES); j++) { |
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202 | for (i = 0; i < dev->ichan; i++) { |
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203 | dev->obufs[i][j] = (jack_sample_t)dev->sobufs[i][j]; |
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204 | } |
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205 | } |
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206 | #endif |
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207 | return 0; |
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208 | } |
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209 | |
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210 | |
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211 | #endif /* HAVE_JACK */ |
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