diff --git a/src/server.ts b/src/server.ts
index dd60538..2406eca 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -42,9 +42,10 @@ function init () {
 					if(session.audioCodec !== 0 && session.videoCodec !== 0){
 						transCommand(results[0].username, key).then((r) => {
 							execFile(config['media']['ffmpeg'], r, {maxBuffer: Infinity}, (err, stdout, stderr) => {
-								/*console.log(err);
-								console.log(stdout);
-								console.log(stderr);*/
+								//console.log(r);
+								//console.log(err);
+								//console.log(stdout);
+								//console.log(stderr);
 							});
 						});
 						break;
@@ -126,29 +127,49 @@ function init () {
 
 async function transCommand(user: string, key: string): Promise<string[]>{
 	let args: string[] = ['-loglevel', 'fatal', '-y'];
+	let vcodec: string = 'libx264';
+	if(config['hwaccel']['type'] === 'nvenc'){
+		vcodec = 'h264_nvenc';
+		if(config['hwaccel']['decode']){
+			args = args.concat(['-hwaccel', 'cuda']);
+			if(config['hwaccel']['device'])
+				args = args.concat(['-hwaccel_device', config['hwaccel']['device']]);
+			args = args.concat(['-hwaccel_output_format', 'cuda']);
+		}
+	}
+	else if (config['hwaccel']['type'] === 'vaapi') {
+		vcodec = 'h264_vaapi';
+		if(config['hwaccel']['decode'] === 'fallback'){
+			args = args.concat('init_hw_device', 'vaapi=foo:'+config['hwaccel']['device'], '-hwaccel vaapi', '-hwaccel_output_format', 'vaapi', '-hwaccel_device', 'foo');
+		} else if (config['hwaccel']['decode']) {
+			args = args.concat(['-hwaccel', 'vaapi', '-hwaccel_output_format', 'vaapi', '-vaapi_device', config['hwaccel']['device']]);
+		}
+	}
 	if(config['transcode']['inputflags'] !== null && config['transcode']['inputflags'] !== "") args = args.concat(config['transcode']['inputflags'].split(" "));
 	args = args.concat(['-i', 'rtmp://127.0.0.1:'+config['rtmp']['port']+'/'+config['media']['privateEndpoint']+'/'+key, '-movflags', '+faststart']);
 	if(config['transcode']['adaptive']===true && config['transcode']['variants'] > 1) {
 		for(let i=0;i<config['transcode']['variants'];i++){
 			args = args.concat(['-map', '0:2']);
 		}
-		args = args.concat(['-map', '0:1', '-c:a', 'aac', '-c:v:0', 'libx264']);
+		args = args.concat(['-map', '0:1', '-c:a', 'aac', '-c:v:0', vcodec]);
 		for(let i=1;i<config['transcode']['variants'];i++){
-			args = args.concat(['-c:v:'+i, 'libx264',]);
+			args = args.concat(['-c:v:'+i, vcodec,]);
 		}
 		for(let i=1;i<config['transcode']['variants'];i++){
 			let crf: number = Math.floor(18 + (i * 8)) > 51 ? 51 : Math.floor(18 + (i * 7));
 			args = args.concat(['-crf:'+i, ''+crf]);
 		}
 		for(let i=1;i<config['transcode']['variants'];i++){
-			let bv: number = Math.floor((5000 / config['transcode']['variants']) * (config['transcode']['variants'] - i));
+			let bv: number = Math.floor((10000 / config['transcode']['variants']) * (config['transcode']['variants'] - i));
 			args = args.concat(['-b:v:'+i, ''+bv]);
 		}
 	}
 	else {
-		args = args.concat(['-c:a', 'aac', '-c:v', 'libx264']);
+		args = args.concat(['-c:a', 'aac', '-c:v', vcodec]);
 	}
-	args = args.concat(['-preset', 'veryfast', '-tune', 'zerolatency']);
+	if(!config['hwaccel']['type'])
+		args = args.concat(['-preset', 'veryfast']);
+	args = args.concat(['-tune', 'zerolatency']);
 	//if(config['transcode']['format'] === 'dash')
 	args = args.concat(['-remove_at_exit', '1', '-seg_duration', '1', '-window_size', '30']);
 	if(config['transcode']['outputflags'] !== null && config['transcode']['outputflags'] !== "") args = args.concat(config['transcode']['outputflags'].split(" "));