1 | /* |
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2 | Copyright (C) 2003-2013 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 | /** |
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22 | |
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23 | This file includes some tools common to all examples. Code specific to the |
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24 | algorithm performed by each program should go in the source file of that |
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25 | program instead. |
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26 | |
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27 | */ |
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28 | |
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29 | #include "utils.h" |
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30 | #ifdef HAVE_JACK |
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31 | #include "jackio.h" |
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32 | #endif /* HAVE_JACK */ |
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33 | |
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34 | int verbose = 0; |
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35 | int usejack = 0; |
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36 | // input / output |
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37 | char_t *sink_uri = NULL; |
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38 | char_t *source_uri = NULL; |
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39 | // general stuff |
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40 | uint_t samplerate = 0; |
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41 | uint_t buffer_size = 512; |
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42 | uint_t hop_size = 256; |
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43 | // onset stuff |
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44 | char_t * onset_method = "default"; |
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45 | smpl_t onset_threshold = 0.0; // will be set if != 0. |
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46 | // pitch stuff |
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47 | char_t * pitch_unit = "default"; |
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48 | char_t * pitch_method = "default"; |
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49 | smpl_t pitch_tolerance = 0.0; // will be set if != 0. |
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50 | // tempo stuff |
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51 | char_t * tempo_method = "default"; |
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52 | // more general stuff |
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53 | smpl_t silence = -90.; |
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54 | uint_t mix_input = 0; |
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55 | |
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56 | // |
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57 | // internal memory stuff |
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58 | aubio_source_t *this_source = NULL; |
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59 | aubio_sink_t *this_sink = NULL; |
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60 | fvec_t *ibuf; |
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61 | fvec_t *obuf; |
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62 | |
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63 | /* settings */ |
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64 | int blocks = 0; |
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65 | |
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66 | extern void usage (FILE * stream, int exit_code); |
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67 | extern int parse_args (int argc, char **argv); |
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68 | |
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69 | #if HAVE_JACK |
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70 | aubio_jack_t *jack_setup; |
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71 | #endif |
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72 | |
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73 | void |
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74 | examples_common_init (int argc, char **argv) |
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75 | { |
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76 | |
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77 | /* parse command line arguments */ |
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78 | parse_args (argc, argv); |
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79 | |
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80 | if (!usejack) { |
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81 | debug ("Opening files ...\n"); |
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82 | this_source = new_aubio_source ((char_t*)source_uri, samplerate, hop_size); |
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83 | if (this_source == NULL) { |
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84 | outmsg ("Could not open input file %s.\n", source_uri); |
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85 | exit (1); |
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86 | } |
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87 | if (samplerate == 0) { |
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88 | samplerate = aubio_source_get_samplerate(this_source); |
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89 | } |
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90 | if (sink_uri != NULL) { |
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91 | this_sink = new_aubio_sink ((char_t*)sink_uri, samplerate); |
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92 | if (this_sink == NULL) { |
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93 | outmsg ("Could not open output file %s.\n", sink_uri); |
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94 | exit (1); |
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95 | } |
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96 | } |
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97 | #ifdef HAVE_JACK |
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98 | } else { |
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99 | debug ("Jack init ...\n"); |
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100 | jack_setup = new_aubio_jack (hop_size, 1, 1, 0, 1); |
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101 | samplerate = aubio_jack_get_samplerate (jack_setup); |
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102 | source_uri = "jack"; |
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103 | #endif |
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104 | } |
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105 | ibuf = new_fvec (hop_size); |
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106 | obuf = new_fvec (hop_size); |
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107 | |
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108 | } |
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109 | |
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110 | void |
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111 | examples_common_del (void) |
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112 | { |
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113 | del_fvec (ibuf); |
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114 | del_fvec (obuf); |
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115 | aubio_cleanup (); |
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116 | fflush(stderr); |
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117 | fflush(stdout); |
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118 | } |
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119 | |
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120 | void |
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121 | examples_common_process (aubio_process_func_t process_func, |
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122 | aubio_print_func_t print) |
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123 | { |
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124 | |
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125 | uint_t read = 0; |
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126 | if (usejack) { |
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127 | |
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128 | #if HAVE_JACK |
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129 | debug ("Jack activation ...\n"); |
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130 | aubio_jack_activate (jack_setup, process_func); |
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131 | debug ("Processing (Ctrl+C to quit) ...\n"); |
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132 | pause (); |
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133 | aubio_jack_close (jack_setup); |
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134 | #else |
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135 | usage (stderr, 1); |
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136 | outmsg ("Compiled without jack output, exiting.\n"); |
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137 | #endif |
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138 | |
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139 | } else { |
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140 | /* phasevoc */ |
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141 | blocks = 0; |
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142 | uint_t total_read = 0; |
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143 | |
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144 | do { |
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145 | aubio_source_do (this_source, ibuf, &read); |
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146 | process_func (ibuf, obuf); |
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147 | // print to console if verbose or no output given |
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148 | if (verbose || sink_uri == NULL) { |
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149 | print(); |
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150 | } |
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151 | if (this_sink) { |
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152 | aubio_sink_do (this_sink, obuf, hop_size); |
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153 | } |
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154 | blocks++; |
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155 | total_read += read; |
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156 | } while (read == hop_size); |
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157 | |
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158 | verbmsg ("read %d samples (%d blocks of %d) from %s at %dHz\n", |
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159 | total_read, blocks, hop_size, source_uri, samplerate); |
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160 | |
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161 | del_aubio_source (this_source); |
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162 | del_aubio_sink (this_sink); |
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163 | |
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164 | } |
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165 | } |
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166 | |
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167 | void |
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168 | send_noteon (int pitch, int velo) |
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169 | { |
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170 | smpl_t mpitch = floor (aubio_freqtomidi (pitch) + .5); |
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171 | #if HAVE_JACK |
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172 | jack_midi_event_t ev; |
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173 | ev.size = 3; |
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174 | ev.buffer = malloc (3 * sizeof (jack_midi_data_t)); // FIXME |
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175 | ev.time = 0; |
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176 | if (usejack) { |
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177 | ev.buffer[2] = velo; |
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178 | ev.buffer[1] = mpitch; |
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179 | if (velo == 0) { |
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180 | ev.buffer[0] = 0x80; /* note off */ |
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181 | } else { |
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182 | ev.buffer[0] = 0x90; /* note on */ |
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183 | } |
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184 | aubio_jack_midi_event_write (jack_setup, (jack_midi_event_t *) & ev); |
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185 | } else |
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186 | #endif |
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187 | if (velo == 0) { |
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188 | verbmsg ("%f\n", blocks * hop_size / (float) samplerate); |
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189 | } else { |
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190 | verbmsg ("%f\t%f\t", mpitch, blocks * hop_size / (float) samplerate); |
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191 | } |
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192 | } |
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193 | |
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