Apparatus and method for generalized fgs truncation of svc video with user preference

An apparatus for decoding FGS data of a SVC video, the apparatus comprising:

• a receiver receiving an adapted bitstream from an FGS data truncating apparatus;
• a decoder decoding the adapted bitstream;
• and
• a user preference information maintaining unit maintaining user preference information associated with the at least one spatial layer in order to transmit the user preference information to the FGS data truncating apparatus.

A method of truncating FGS data of a SVC video, the method comprising:

• analyzing a bitstream to extract R-D data of at least one spatial layer;
• collecting user preference information associated with each spatial layer;
• deciding an optimal bitrate of each spatial layer based on a bitrate included in the R-D data and the collected user preference information;
• and
• truncating FGS data that does not correspond to the optimal bitrate of each spatial layer.