ref: c601bcd830d8b6847b413206f63648ac4f9f2f01
dir: /examples/parse_args.h/
/* Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org> This file is part of aubio. aubio is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. aubio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with aubio. If not, see <http://www.gnu.org/licenses/>. */ extern int verbose; // input / output extern int usejack; extern char_t *source_uri; extern char_t *sink_uri; // general stuff extern uint_t samplerate; extern uint_t buffer_size; extern uint_t hop_size; // onset stuff extern char_t * onset_method; extern smpl_t onset_threshold; // pitch stuff extern char_t * pitch_method; extern char_t * pitch_unit; extern smpl_t pitch_tolerance; // time stuff extern uint_t time_format; // tempo stuff extern char_t * tempo_method; // more general stuff extern smpl_t silence_threshold; extern uint_t mix_input; extern uint_t force_overwrite; // functions defined in utils.c extern void examples_common_init (int argc, char **argv); extern void examples_common_del (void); extern void examples_common_process (aubio_process_func_t process_func, aubio_print_func_t print); int parse_args (int argc, char **argv); // internal stuff extern int blocks; extern fvec_t *ibuf; extern fvec_t *obuf; const char *prog_name; void usage (FILE * stream, int exit_code); void usage (FILE * stream, int exit_code) { fprintf (stream, "usage: %s [ options ] \n", prog_name); fprintf (stream, " -i --input input file\n" #ifdef PROG_HAS_OUTPUT " -o --output output file\n" #endif " -r --samplerate select samplerate\n" " use 0 to use input source samplerate, or 32000 to force 32kHz\n" " -B --bufsize set buffer size\n" " number of frames to run the analysis on\n" " -H --hopsize set hopsize\n" " number of frames to read from source before each analysis\n" #ifdef PROG_HAS_ONSET " -O --onset select onset detection algorithm\n" " <default|energy|hfc|complex|phase|specdiff|kl|mkl|specflux>;\n" " default=hfc\n" " -t --onset-threshold set onset detection threshold\n" " a value between 0.1 (more detections) and 1 (less); default=0.3\n" #endif /* PROG_HAS_ONSET */ #ifdef PROG_HAS_PITCH " -p --pitch select pitch detection algorithm\n" " <default|yinfft|yin|mcomb|fcomb|schmitt>; default=yinfft\n" " -u --pitch-unit select pitch output unit\n" " <default|freq|hertz|Hz|midi|cent|bin>; default=freq\n" " -l --pitch-tolerance select pitch tolerance\n" " (yin, yinfft only) a value between 0.1 and 0.7; default=0.3\n" #endif /* PROG_HAS_PITCH */ " -s --silence select silence threshold\n" " a value in dB, for instance -70, or -100; default=-90\n" " -T --time-format select time values output format\n" " (samples, ms, seconds) default=seconds\n" #ifdef PROG_HAS_OUTPUT " -m --mix-input mix input signal with output signal\n" " input signal will be added to output synthesis\n" " -f --force-overwrite overwrite output file if needed\n" " do not fail if output file already exists\n" #endif #ifdef PROG_HAS_JACK " -j --jack use Jack\n" #endif " -v --verbose be verbose\n" " -h --help display this message\n" ); exit (exit_code); } int parse_args (int argc, char **argv) { const char *options = "hv" "i:r:B:H:" #ifdef PROG_HAS_JACK "j" #endif /* PROG_HAS_JACK */ #ifdef PROG_HAS_OUTPUT "o:" #endif /* PROG_HAS_OUTPUT */ #ifdef PROG_HAS_ONSET "O:t:" #endif /* PROG_HAS_ONSET */ #ifdef PROG_HAS_PITCH "p:u:l:" #endif /* PROG_HAS_PITCH */ "T:" "s:mf"; int next_option; struct option long_options[] = { {"help", 0, NULL, 'h'}, {"verbose", 0, NULL, 'v'}, {"input", 1, NULL, 'i'}, {"samplerate", 1, NULL, 'r'}, {"bufsize", 1, NULL, 'B'}, {"hopsize", 1, NULL, 'H'}, #ifdef PROG_HAS_JACK {"jack", 0, NULL, 'j'}, #endif /* PROG_HAS_JACK */ #ifdef PROG_HAS_OUTPUT {"output", 1, NULL, 'o'}, #endif /* PROG_HAS_OUTPUT */ #ifdef PROG_HAS_ONSET {"onset", 1, NULL, 'O'}, {"onset-threshold", 1, NULL, 't'}, #endif /* PROG_HAS_ONSET */ #ifdef PROG_HAS_PITCH {"pitch", 1, NULL, 'p'}, {"pitch-unit", 1, NULL, 'u'}, {"pitch-tolerance", 1, NULL, 'l'}, #endif /* PROG_HAS_PITCH */ {"silence", 1, NULL, 's'}, {"time-format", 1, NULL, 'T'}, {"mix-input", 0, NULL, 'm'}, {"force-overwrite", 0, NULL, 'f'}, {NULL, 0, NULL, 0} }; prog_name = argv[0]; if (argc < 1) { usage (stderr, 1); return -1; } do { next_option = getopt_long (argc, argv, options, long_options, NULL); switch (next_option) { case 'h': /* help */ usage (stdout, 0); return -1; case 'v': /* verbose */ verbose = 1; break; case 'j': usejack = 1; break; case 'i': source_uri = optarg; break; case 'o': sink_uri = optarg; break; case 'f': /* force_overwrite flag */ force_overwrite = 1; break; case 'r': samplerate = atoi (optarg); break; case 'B': buffer_size = atoi (optarg); break; case 'H': hop_size = atoi (optarg); break; case 'O': /*onset method */ onset_method = optarg; break; case 't': /* threshold value for onset */ onset_threshold = (smpl_t) atof (optarg); break; case 'p': pitch_method = optarg; break; case 'u': pitch_unit = optarg; break; case 'l': pitch_tolerance = (smpl_t) atof (optarg); break; case 'T': if (strcmp (optarg, "samples") == 0) { time_format = 2; } else if (strcmp (optarg, "ms") == 0) { time_format = 1; } else if (strcmp (optarg, "seconds") == 0) { time_format = 0; } else { errmsg ("Warning: did not get '%s' time-format string\n", optarg); } break; case 's': /* silence threshold */ silence_threshold = (smpl_t) atof (optarg); break; case 'm': /* mix_input flag */ mix_input = 1; break; case '?': /* unknown options */ usage (stderr, 1); break; case -1: /* done with options */ break; default: /*something else unexpected */ fprintf (stderr, "Error parsing option '%c'\n", next_option); abort (); } } while (next_option != -1); // if unique, use the non option argument as the source if ( source_uri == NULL ) { if (argc - optind == 1) { source_uri = argv[optind]; } else if ( argc - optind > 1 ) { errmsg ("Error: too many non-option arguments `%s'\n", argv[argc - 1]); usage ( stderr, 1 ); } } else if ( argc - optind > 0 ) { errmsg ("Error: extra non-option argument %s\n", argv[optind]); usage ( stderr, 1 ); } // if no source, show a message if (source_uri == NULL) { #ifdef PROG_HAS_JACK #if HAVE_JACK verbmsg("No input source given, using jack\n"); usejack = 1; #else errmsg("Error: no arguments given (and no available audio input)\n"); usage ( stderr, 1 ); #endif /* HAVE_JACK */ #else errmsg("Error: no arguments given\n"); usage ( stderr, 1 ); #endif /* PROG_HAS_JACK */ } if ((sint_t)hop_size < 1) { errmsg("Error: got hop_size %d, but can not be < 1\n", hop_size); usage ( stderr, 1 ); } else if ((sint_t)buffer_size < 2) { errmsg("Error: got buffer_size %d, but can not be < 2\n", buffer_size); usage ( stderr, 1 ); } else if ((sint_t)buffer_size < (sint_t)hop_size) { errmsg("Error: hop size (%d) is larger than win size (%d)\n", hop_size, buffer_size); usage ( stderr, 1 ); } if ((sint_t)samplerate < 0) { errmsg("Error: got samplerate %d, but can not be < 0\n", samplerate); usage ( stderr, 1 ); } return 0; }