ipcam_rtsp2hls_rkmpp fixes

systemd/ipcam_rtsp2hls_rkmpp@.service

@@ -8,7 +8,7 @@ RestartSec=3
 User=root
 Group=root
 EnvironmentFile=/etc/ipcam_rtsp2hls.conf.d/%i.conf
-ExecStart=/home/user/homekit/tools/ipcam_rtsp2hls_h264.sh --name %i --user $USER --password $PASSWORD --ip $IP --port $PORT $ARGS
+ExecStart=/home/user/homekit/tools/ipcam_rtsp2hls_h264.sh --name %i --user $USER --password $PASSWORD --ip $IP --port $PORT --force-tcp $ARGS
 
 [Install]
 WantedBy=multi-user.target

tools/ipcam_rtsp2hls_h264.sh

@@ -121,6 +121,6 @@ else
 fi
 
 /home/user/FFmpeg/ffmpeg $args -i "rtsp://${USER}:${PASSWORD}@${IP}:${PORT}${path}" \
-	-c:v h264_rkmpp_encoder -preset ultrafast -an \
+	-c:v h264_rkmpp_encoder -preset ultrafast -an -vsync drop \
 	-flags -global_header -hls_time 2 -hls_list_size 3 -hls_flags delete_segments \
 	${OUTDIR}/${NAME}/live.m3u8