intial commit

options.h

@@ -0,0 +1,76 @@
+#pragma once
+#include <string>
+#include <vector>
+#include <argp.h>
+#include <iostream>
+#include <filesystem>
+
+const inline char *argp_program_version = "VideoSender";
+const inline char *argp_program_bug_address = "<carl@uvos.xyz>";
+static char doc[] = "Application that sends video4linux streams over the network with minimal latency";
+static char args_doc[] = "";
+
+static struct argp_option options[] =
+{
+  {"device", 		'd', "[PATH]",		0,	"device to use" },
+  {"width",			'x', "[NUMBER]",	0,	"Width at witch to capture frames from the camera"},
+  {"height",		'y', "[NUMBER]",	0,	"Heigt at witch to capture frames from the camera"},
+  {"overlay",		'o', "[PATH]",		0,	"Overlay file to use"},
+  {"mjpeg",			'j', 0,				0,	"Use mjpeg as the capture format for the camera"},
+  {"addr",			'a', "[IP_ADDRESS]",0,	"Ip address of the remote machine"},
+  {"port",			'p', "[PORT]",		0,	"Port of the remote machine"},
+  { 0 }
+};
+
+struct Config
+{
+	std::string url = "10.0.0.1";
+	int port = 9874;
+	std::filesystem::path device = "/dev/video0";
+	int Xres = 640;
+	int Yres = 480;
+	std::filesystem::path overlay;
+	bool mjpeg = false;
+};
+
+static error_t parse_opt (int key, char *arg, struct argp_state *state)
+{
+	Config *config = reinterpret_cast<Config*>(state->input);
+
+	try
+	{
+		switch (key)
+		{
+		case 'd':
+			config->device = arg;
+			break;
+		case 'x':
+			config->Xres = std::stoi(arg);
+			break;
+		case 'y':
+			config->Yres = std::stoi(arg);
+		case 'o':
+			config->overlay = arg;
+			break;
+		case 'j':
+			config->mjpeg = true;
+			break;
+		case 'a':
+			config->url = arg;
+			break;
+		case 'p':
+			config->port = std::stoi(arg);
+			break;
+		default:
+			return ARGP_ERR_UNKNOWN;
+		}
+	}
+	catch(const std::invalid_argument& ex)
+	{
+		std::cout<<arg<<" passed for argument -"<<static_cast<char>(key)<<" is not a valid number.\n";
+		return ARGP_KEY_ERROR;
+	}
+	return 0;
+}
+
+static struct argp argp = {options, parse_opt, args_doc, doc};