Disclosed is a method for sharing contents of a server apparatus. The method comprises: a step for receiving playback capability information from a client apparatus; a determination step for determining, on the basis of the received playback capability information, whether to carry out partial processing of contents to be supplied to the client apparatus; and a transmission step for processing some frames in the contents to be played in the client apparatus and transmitting the processed frames to the client apparatus if it is determined that the partial processing is necessary. Accordingly, it is possible to efficiently provide contents.