1 | /* |
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2 | Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org> |
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3 | |
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4 | This file is part of aubio. |
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5 | |
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6 | aubio is free software: you can redistribute it and/or modify |
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7 | it under the terms of the GNU General Public License as published by |
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8 | the Free Software Foundation, either version 3 of the License, or |
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9 | (at your option) any later version. |
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10 | |
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11 | aubio is distributed in the hope that it will be useful, |
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12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | GNU General Public License for more details. |
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15 | |
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16 | You should have received a copy of the GNU General Public License |
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17 | along with aubio. If not, see <http://www.gnu.org/licenses/>. |
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18 | |
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19 | */ |
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20 | |
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21 | #include <aubio.h> |
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22 | |
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23 | #if HAVE_JACK |
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24 | #include <jack/jack.h> |
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25 | #include "aubio_priv.h" |
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26 | #include "jackio.h" |
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27 | |
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28 | typedef jack_default_audio_sample_t jack_sample_t; |
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29 | |
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30 | #if !AUBIO_SINGLE_PRECISION |
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31 | #define AUBIO_JACK_MAX_FRAMES 4096 |
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32 | #define AUBIO_JACK_NEEDS_CONVERSION |
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33 | #endif |
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34 | |
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35 | /** |
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36 | * jack device structure |
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37 | */ |
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38 | struct _aubio_jack_t |
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39 | { |
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40 | /** jack client */ |
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41 | jack_client_t *client; |
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42 | /** jack output ports */ |
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43 | jack_port_t **oports; |
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44 | /** jack input ports */ |
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45 | jack_port_t **iports; |
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46 | /** jack input buffer */ |
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47 | jack_sample_t **ibufs; |
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48 | /** jack output buffer */ |
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49 | jack_sample_t **obufs; |
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50 | #ifdef AUBIO_JACK_NEEDS_CONVERSION |
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51 | /** converted jack input buffer */ |
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52 | smpl_t **sibufs; |
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53 | /** converted jack output buffer */ |
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54 | smpl_t **sobufs; |
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55 | #endif |
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56 | /** jack input audio channels */ |
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57 | uint_t ichan; |
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58 | /** jack output audio channels */ |
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59 | uint_t ochan; |
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60 | /** jack input midi channels */ |
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61 | uint_t imidichan; |
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62 | /** jack output midi channels */ |
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63 | uint_t omidichan; |
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64 | /** jack samplerate (Hz) */ |
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65 | uint_t samplerate; |
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66 | /** jack processing function */ |
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67 | aubio_process_func_t callback; |
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68 | }; |
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69 | |
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70 | /* static memory management */ |
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71 | static aubio_jack_t *aubio_jack_alloc (uint_t ichan, uint_t ochan, |
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72 | uint_t imidichan, uint_t omidichan); |
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73 | static uint_t aubio_jack_free (aubio_jack_t * jack_setup); |
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74 | /* jack callback functions */ |
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75 | static int aubio_jack_process (jack_nframes_t nframes, void *arg); |
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76 | static void aubio_jack_shutdown (void *arg); |
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77 | |
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78 | aubio_jack_t * |
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79 | new_aubio_jack (uint_t ichan, uint_t ochan, |
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80 | uint_t imidichan, uint_t omidichan, |
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81 | aubio_process_func_t callback) |
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82 | { |
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83 | aubio_jack_t *jack_setup = aubio_jack_alloc (ichan, ochan, |
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84 | imidichan, omidichan); |
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85 | uint_t i; |
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86 | char *client_name = "aubio"; |
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87 | char *jack_port_type; |
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88 | char name[64]; |
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89 | /* initial jack client setup */ |
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90 | if ((jack_setup->client = jack_client_new (client_name)) == 0) { |
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91 | AUBIO_ERR ("jack server not running?\n"); |
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92 | AUBIO_QUIT (AUBIO_FAIL); |
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93 | } |
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94 | |
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95 | /* set callbacks */ |
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96 | jack_set_process_callback (jack_setup->client, aubio_jack_process, |
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97 | (void *) jack_setup); |
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98 | jack_on_shutdown (jack_setup->client, aubio_jack_shutdown, |
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99 | (void *) jack_setup); |
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100 | |
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101 | /* register jack output audio and midi ports */ |
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102 | for (i = 0; i < ochan + omidichan; i++) { |
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103 | if (i < ochan) { |
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104 | jack_port_type = JACK_DEFAULT_AUDIO_TYPE; |
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105 | AUBIO_SPRINTF (name, "out_%d", i + 1); |
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106 | } else { |
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107 | jack_port_type = JACK_DEFAULT_MIDI_TYPE; |
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108 | AUBIO_SPRINTF (name, "midi_out_%d", i - ochan + 1); |
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109 | } |
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110 | if ((jack_setup->oports[i] = |
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111 | jack_port_register (jack_setup->client, name, |
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112 | jack_port_type, JackPortIsOutput, 0)) == 0) { |
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113 | goto beach; |
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114 | } |
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115 | AUBIO_DBG ("%s:%s\n", client_name, name); |
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116 | } |
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117 | |
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118 | /* register jack input audio ports */ |
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119 | for (i = 0; i < ichan + imidichan; i++) { |
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120 | if (i < ichan) { |
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121 | jack_port_type = JACK_DEFAULT_AUDIO_TYPE; |
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122 | AUBIO_SPRINTF (name, "in_%d", i + 1); |
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123 | } else { |
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124 | jack_port_type = JACK_DEFAULT_MIDI_TYPE; |
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125 | AUBIO_SPRINTF (name, "midi_in_%d", i - ichan + 1); |
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126 | } |
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127 | if ((jack_setup->iports[i] = |
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128 | jack_port_register (jack_setup->client, name, |
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129 | jack_port_type, JackPortIsInput, 0)) == 0) { |
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130 | goto beach; |
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131 | } |
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132 | AUBIO_DBG ("%s:%s\n", client_name, name); |
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133 | } |
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134 | |
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135 | /* set processing callback */ |
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136 | jack_setup->callback = callback; |
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137 | return jack_setup; |
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138 | |
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139 | beach: |
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140 | AUBIO_ERR ("failed registering port \"%s:%s\"!\n", |
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141 | client_name, name); |
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142 | jack_client_close (jack_setup->client); |
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143 | AUBIO_QUIT (AUBIO_FAIL); |
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144 | } |
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145 | |
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146 | uint_t |
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147 | aubio_jack_activate (aubio_jack_t * jack_setup) |
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148 | { |
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149 | /* get sample rate */ |
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150 | jack_setup->samplerate = jack_get_sample_rate (jack_setup->client); |
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151 | /* actual jack process activation */ |
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152 | if (jack_activate (jack_setup->client)) { |
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153 | AUBIO_ERR ("jack client activation failed"); |
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154 | return 1; |
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155 | } |
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156 | return 0; |
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157 | } |
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158 | |
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159 | void |
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160 | aubio_jack_close (aubio_jack_t * jack_setup) |
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161 | { |
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162 | /* bug : should disconnect all ports first */ |
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163 | jack_client_close (jack_setup->client); |
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164 | aubio_jack_free (jack_setup); |
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165 | } |
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166 | |
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167 | /* memory management */ |
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168 | static aubio_jack_t * |
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169 | aubio_jack_alloc (uint_t ichan, uint_t ochan, |
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170 | uint_t imidichan, uint_t omidichan) |
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171 | { |
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172 | aubio_jack_t *jack_setup = AUBIO_NEW (aubio_jack_t); |
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173 | jack_setup->ichan = ichan; |
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174 | jack_setup->ochan = ochan; |
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175 | jack_setup->oports = AUBIO_ARRAY (jack_port_t *, ichan + imidichan); |
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176 | jack_setup->iports = AUBIO_ARRAY (jack_port_t *, ochan + omidichan); |
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177 | jack_setup->ibufs = AUBIO_ARRAY (jack_sample_t *, ichan); |
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178 | jack_setup->obufs = AUBIO_ARRAY (jack_sample_t *, ochan); |
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179 | #ifdef AUBIO_JACK_NEEDS_CONVERSION |
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180 | /* allocate arrays for data conversion */ |
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181 | jack_setup->sibufs = AUBIO_ARRAY (smpl_t *, ichan); |
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182 | uint_t i; |
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183 | for (i = 0; i < ichan; i++) { |
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184 | jack_setup->sibufs[i] = AUBIO_ARRAY (smpl_t, AUBIO_JACK_MAX_FRAMES); |
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185 | } |
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186 | jack_setup->sobufs = AUBIO_ARRAY (smpl_t *, ochan); |
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187 | for (i = 0; i < ochan; i++) { |
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188 | jack_setup->sobufs[i] = AUBIO_ARRAY (smpl_t, AUBIO_JACK_MAX_FRAMES); |
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189 | } |
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190 | #endif |
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191 | return jack_setup; |
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192 | } |
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193 | |
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194 | static uint_t |
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195 | aubio_jack_free (aubio_jack_t * jack_setup) |
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196 | { |
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197 | AUBIO_FREE (jack_setup->oports); |
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198 | AUBIO_FREE (jack_setup->iports); |
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199 | AUBIO_FREE (jack_setup->ibufs); |
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200 | AUBIO_FREE (jack_setup->obufs); |
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201 | AUBIO_FREE (jack_setup); |
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202 | return AUBIO_OK; |
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203 | } |
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204 | |
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205 | /* jack callback functions */ |
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206 | static void |
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207 | aubio_jack_shutdown (void *arg UNUSED) |
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208 | { |
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209 | AUBIO_ERR ("jack shutdown\n"); |
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210 | AUBIO_QUIT (AUBIO_OK); |
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211 | } |
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212 | |
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213 | static int |
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214 | aubio_jack_process (jack_nframes_t nframes, void *arg) |
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215 | { |
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216 | aubio_jack_t *dev = (aubio_jack_t *) arg; |
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217 | uint_t i; |
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218 | for (i = 0; i < dev->ichan; i++) { |
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219 | /* get readable input */ |
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220 | dev->ibufs[i] = |
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221 | (jack_sample_t *) jack_port_get_buffer (dev->iports[i], nframes); |
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222 | } |
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223 | for (i = 0; i < dev->ochan; i++) { |
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224 | /* get writable output */ |
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225 | dev->obufs[i] = |
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226 | (jack_sample_t *) jack_port_get_buffer (dev->oports[i], nframes); |
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227 | } |
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228 | #ifndef AUBIO_JACK_NEEDS_CONVERSION |
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229 | dev->callback (dev->ibufs, dev->obufs, nframes); |
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230 | #else |
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231 | uint_t j; |
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232 | for (j = 0; j < MIN (nframes, AUBIO_JACK_MAX_FRAMES); j++) { |
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233 | for (i = 0; i < dev->ichan; i++) { |
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234 | dev->sibufs[i][j] = (smpl_t) dev->ibufs[i][j]; |
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235 | } |
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236 | } |
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237 | dev->callback (dev->sibufs, dev->sobufs, nframes); |
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238 | for (j = 0; j < MIN (nframes, AUBIO_JACK_MAX_FRAMES); j++) { |
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239 | for (i = 0; i < dev->ochan; i++) { |
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240 | dev->obufs[i][j] = (jack_sample_t) dev->sobufs[i][j]; |
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241 | } |
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242 | } |
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243 | #endif |
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244 | return 0; |
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245 | } |
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246 | |
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247 | |
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248 | #endif /* HAVE_JACK */ |
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