What type of aircraft are those in the video?
Never mind.
Above picture is one launching from the Liaoning. It's a Chinese built navalized variant of the Russian Su-33. The Liaoning is a ski-jump carrier, but China just developed a CATOBAR capable version, the J-15A. As for the carrier's operational status... "In January 2017, the carrier Liaoning, returned to the South China Seas after its first deployment into the West Pacific, conducted a series of take-off and landing drills with its force of embarked J-15 fighters."