Is the buddhist concept of samadhi just a rehash of patanjali's teachings from yoga sutras?

Many people claim that the buddhist concept of samadhi is just a rehash of what Patanjali taught in the yoga sutras, by rehashing the teachings within the framework of anatman concept. Is it true? If not , what distinguishes the buddhist samadhi or makes it a higher/better state than the samadhi of the yoga school?