X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=futatabi%2Fflags.cpp;fp=futatabi%2Fflags.cpp;h=4c7537093982671a4775f0b20d7bd7b7c6d0b569;hb=6e116a6bbeb2c047a3bfb084395ec601ce211e6c;hp=0000000000000000000000000000000000000000;hpb=ce2e0615420b706e1ff2405fffcedfba37a9adac;p=nageru

diff --git a/futatabi/flags.cpp b/futatabi/flags.cpp
new file mode 100644
index 0000000..4c75370
--- /dev/null
+++ b/futatabi/flags.cpp
@@ -0,0 +1,82 @@
+#include "flags.h"
+
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <utility>
+
+using namespace std;
+
+Flags global_flags;
+
+// Long options that have no corresponding short option.
+enum LongOption {
+	OPTION_HELP = 1000,
+	OPTION_SLOW_DOWN_INPUT = 1001,
+	OPTION_HTTP_PORT = 1002
+};
+
+void usage()
+{
+	fprintf(stderr, "Usage: futatabi [OPTION]... SOURCE_URL\n");
+	fprintf(stderr, "\n");
+	fprintf(stderr, "      --help                      print usage information\n");
+	fprintf(stderr, "      --slow-down-input           slow down input to realtime (default on if no\n");
+	fprintf(stderr, "                                    source URL given)\n");
+	fprintf(stderr, "  -q, --interpolation-quality N   1 = fastest\n");
+	fprintf(stderr, "                                  2 = default (realtime 720p on fast embedded GPUs)\n");
+	fprintf(stderr, "                                  3 = good (realtime 720p on GTX 970 or so)\n");
+	fprintf(stderr, "                                  4 = best (not realtime on any current GPU)\n");
+	fprintf(stderr, "  -d, --working-directory DIR     where to store frames and database\n");
+	fprintf(stderr, "      --http-port PORT            which port to listen on for output\n");
+}
+
+void parse_flags(int argc, char * const argv[])
+{
+	static const option long_options[] = {
+		{ "help", no_argument, 0, OPTION_HELP },
+		{ "slow-down-input", no_argument, 0, OPTION_SLOW_DOWN_INPUT },
+		{ "interpolation-quality", required_argument, 0, 'q' },
+		{ "working-directory", required_argument, 0, 'd' },
+		{ "http-port", required_argument, 0, OPTION_HTTP_PORT },
+		{ 0, 0, 0, 0 }
+	};
+	for ( ;; ) {
+		int option_index = 0;
+		int c = getopt_long(argc, argv, "q:d:", long_options, &option_index);
+
+		if (c == -1) {
+			break;
+		}
+		switch (c) {
+		case OPTION_SLOW_DOWN_INPUT:
+			global_flags.slow_down_input = true;
+			break;
+		case 'q':
+			global_flags.interpolation_quality = atoi(optarg);
+			break;
+		case 'd':
+			global_flags.working_directory = optarg;
+			break;
+		case OPTION_HTTP_PORT:
+			global_flags.http_port = atoi(optarg);
+			break;
+		case OPTION_HELP:
+			usage();
+			exit(0);
+		default:
+			fprintf(stderr, "Unknown option '%s'\n", argv[option_index]);
+			fprintf(stderr, "\n");
+			usage();
+			exit(1);
+		}
+	}
+
+	if (global_flags.interpolation_quality < 1 || global_flags.interpolation_quality > 4) {
+		fprintf(stderr, "Interpolation quality must be 1, 2, 3 or 4.\n");
+		usage();
+		exit(1);
+	}
+}