ref: a8d24ea168ba579152758552b5beb48d08b19b11
dir: /tools/dav1d_cli_parse.c/
/* * Copyright © 2018, VideoLAN and dav1d authors * Copyright © 2018, Two Orioles, LLC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include <assert.h> #include <getopt.h> #include <math.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #ifdef HAVE_UNISTD_H # include <unistd.h> #endif #include "dav1d_cli_parse.h" static const char short_opts[] = "i:o:vql:"; enum { ARG_MUXER, ARG_FRAME_THREADS, ARG_TILE_THREADS, }; static const struct option long_opts[] = { { "input", 1, NULL, 'i' }, { "output", 1, NULL, 'o' }, { "quiet", 0, NULL, 'q' }, { "muxer", 1, NULL, ARG_MUXER }, { "version", 0, NULL, 'v' }, { "limit", 1, NULL, 'l' }, { "skip", 1, NULL, 's' }, { "framethreads", 1, NULL, ARG_FRAME_THREADS }, { "tilethreads", 1, NULL, ARG_TILE_THREADS }, { NULL, 0, NULL, 0 }, }; static void usage(const char *const app, const char *const reason, ...) { if (reason) { va_list args; va_start(args, reason); vfprintf(stderr, reason, args); va_end(args); fprintf(stderr, "\n\n"); } fprintf(stderr, "Usage: %s [options]\n\n", app); fprintf(stderr, "Supported options:\n" " --input/-i $file: input file\n" " --output/-o $file: output file\n" " --muxer $name: force muxer type (default: detect from extension)\n" " --quiet/-q: disable status messages\n" " --limit/-l $num: stop decoding after $num frames\n" " --skip/-s $num: skip decoding of the first $num frames\n" " --version/-v: print version and exit\n" " --framethreads $num: number of frame threads (default: 1)\n" " --tilethreads $num: number of tile threads (default: 1)\n"); exit(1); } static void error(const char *const app, const char *const optarg, const int option, const char *const shouldbe) { char optname[256]; int n; for (n = 0; long_opts[n].name; n++) if (long_opts[n].val == option) break; assert(long_opts[n].name); if (long_opts[n].val < 256) { sprintf(optname, "-%c/--%s", long_opts[n].val, long_opts[n].name); } else { sprintf(optname, "--%s", long_opts[n].name); } usage(app, "Invalid argument \"%s\" for option %s; should be %s", optarg, optname, shouldbe); } static unsigned parse_unsigned(char *optarg, const int option, const char *app) { char *end; const double res = strtoul(optarg, &end, 0); if (*end || end == optarg) error(app, optarg, option, "an integer"); return res; } void parse(const int argc, char *const *const argv, CLISettings *const cli_settings, Dav1dSettings *const lib_settings) { int o; memset(cli_settings, 0, sizeof(*cli_settings)); dav1d_default_settings(lib_settings); while ((o = getopt_long(argc, argv, short_opts, long_opts, NULL)) >= 0) { switch (o) { case 'o': cli_settings->outputfile = optarg; break; case 'i': cli_settings->inputfile = optarg; break; case 'q': cli_settings->quiet = 1; break; case 'l': cli_settings->limit = parse_unsigned(optarg, 'l', argv[0]); break; case 's': cli_settings->skip = parse_unsigned(optarg, 's', argv[0]); break; case ARG_MUXER: cli_settings->muxer = optarg; break; case ARG_FRAME_THREADS: lib_settings->n_frame_threads = parse_unsigned(optarg, ARG_FRAME_THREADS, argv[0]); break; case ARG_TILE_THREADS: lib_settings->n_tile_threads = parse_unsigned(optarg, ARG_TILE_THREADS, argv[0]); break; case 'v': fprintf(stderr, "%s\n", dav1d_version()); exit(0); default: break; } } if (!cli_settings->inputfile) usage(argv[0], "Input file (-i/--input) is required"); if (!cli_settings->outputfile) usage(argv[0], "Output file (-o/--output) is required"); }