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--help

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This commit is contained in:
Devaev Maxim 2018-09-21 03:08:57 +03:00
parent 12dfc55aca
commit 46a25be167
1 changed files with 36 additions and 3 deletions
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39
src/main.c
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@ -42,8 +42,41 @@ static const struct option _long_opts[] = {
{NULL, 0, NULL, 0}
};
static void _help() {
printf("No manual yet\n");
static void _help(struct device_t *dev, struct http_server_t *server) {
printf("\nuStreamer - Lightweight and fast MJPG-HTTP streamer\n");
printf("===================================================\n\n");
printf("Capturing options:\n");
printf("------------------\n");
printf(" -d|--device </dev/path> -- Path to V4L2 device. Default: %s\n\n", dev->path);
printf(" --width <N> -- Initial image width. Default: %d\n\n", dev->width);
printf(" --height <N> -- Initial image height. Default: %d\n\n", dev->height);
printf(" -f|--format <YUYV|UYVY|RGB565> -- Image format. Default: YUYV.\n\n");
printf(" -a|--tv-standard <PAL|NTSC|SECAM> -- Force TV standard. Default: disabled.\n\n");
printf(" -e|--every-frame <N> -- Drop all input frames except specified. Default: disabled.\n\n");
printf(" -z|--min-frame-size <N> -- Drop frames smaller then this limit.\n");
printf(" Useful if the device produces small-sized garbage frames.\n\n");
printf(" -t|--dv-timings -- Enable DV timings queriyng and events processing.\n");
printf(" Supports automatic resolution changing. Default: disabled.\n\n");
printf(" -n|--buffers <N> -- The number of buffers to receive data from the device.\n");
printf(" Each buffer is processed using an intermediate thread.\n");
printf(" Default: %d (number of CPU cores + 1)\n\n", dev->n_buffers);
printf(" -q|--jpeg-quality <N> -- Set quality of JPEG encoding from 1 to 100 (best). Default: %d\n\n", dev->jpeg_quality);
printf(" --device-timeout <seconds> -- Timeout for device querying. Default: %d\n\n", dev->timeout);
printf(" --device-error-timeout <seconds> -- Delay before trying to connect to the device again\n");
printf(" after a timeout. Default: %d\n\n", dev->error_timeout);
printf("HTTP server options:\n");
printf("--------------------\n");
printf(" --host <address> -- Listen on Hostname or IP. Default: %s\n\n", server->host);
printf(" --port <N> -- Bind to this TCP port. Default: %d\n\n", server->port);
printf(" --server-timeout <seconds> -- Timeout for client connections. Default: %d\n\n", server->timeout);
printf("Misc options:\n");
printf("-------------\n");
printf(" --debug -- Enabled debug messages (same as --log-level=3). Default: disabled.\n\n");
printf(" --log-level <N> -- Verbosity level of messages from 0 (info) to 3 (debug).\n");
printf(" Enabling debugging messages can slow down the program.\n");
printf(" Available levels: 0=info, 1=verbose, 2=performace, 3=debug.\n");
printf(" Default: %d\n\n", log_level);
printf(" -h|--help -- Print this messages and exit\n\n");
}
static int _parse_options(int argc, char *argv[], struct device_t *dev, struct http_server_t *server) {
@ -93,7 +126,7 @@ static int _parse_options(int argc, char *argv[], struct device_t *dev, struct h
case 5000: log_level = LOG_LEVEL_DEBUG; break;
case 5001: OPT_UNSIGNED(log_level, "--log-level", 0);
case 0: break;
case 'h': default: _help(); return -1;
case 'h': default: _help(dev, server); return -1;
}
}