63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
#include "screen.h"
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#include <unistd.h>
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#include <libavformat/avformat.h>
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#include <SDL2/SDL.h>
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#define DEFAULT_LOCAL_PORT 27183
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struct args {
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const char *serial;
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Uint16 port;
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};
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int parse_args(struct args *args, int argc, char *argv[]) {
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int c;
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while ((c = getopt(argc, argv, "p:")) != -1) {
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switch (c) {
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case 'p': {
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char *endptr;
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long int value = strtol(optarg, &endptr, 0);
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if (*optarg == '\0' || *endptr != '\0') {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Invalid port: %s\n", optarg);
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return -1;
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}
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if (value & ~0xffff) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Port out of range: %ld\n", value);
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return -1;
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}
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args->port = (Uint16) value;
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break;
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}
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default:
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// getopt prints the error message on stderr
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return -1;
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}
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}
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int index = optind;
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if (index < argc) {
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args->serial = argv[index++];
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}
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if (index < argc) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unexpected additional argument: %s\n", argv[index]);
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return -1;
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}
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return 0;
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}
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int main(int argc, char *argv[]) {
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av_register_all();
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avformat_network_init();
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SDL_LogSetAllPriority(SDL_LOG_PRIORITY_DEBUG);
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struct args args = {
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.serial = NULL,
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.port = DEFAULT_LOCAL_PORT,
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};
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if (parse_args(&args, argc, argv)) {
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return -1;
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}
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return show_screen(args.serial, args.port);
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}
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