A method of encapsulating HEVC tiled timed media data in a server, the tiled timed media data comprising frames (1710-1720), each frame being composed of a plurality of tiles (1702-1705), the method comprising: obtaining at least one tile from amongst the plurality of tiles composing a first frame of the plurality of frames; for each obtained tile, generating a tile track comprising NAL units, the NAL units corresponding to the obtained tile and corresponding tiles, each of the corresponding tiles belonging to a frame of the plurality of frames, different from the first frame, each of the corresponding tiles being located at the same spatial position in its own frame as the obtained tile in the first frame; independently encapsulating each of the tile tracks in a media file, characterized in that the method further comprises generating and encapsulating in the media file a base track comprising metadata including a reference to some of the generated tile tracks as a list of tile tracks to be decoded, the list being ordered according to a decoding order dependency of tiles within a frame, and including a 'dodp' reference type for identifying in the metadata the ordered list of tile tracks to be decoded, the ordered list providing an iterative rule for concatenating the NAL units having a same timestamp of the tile tracks identified in the ordered list, in the given order, the 'mdat' box of each of the tracks not including any extractor NAL unit, the base track further comprising parameter set information that is common to all tile tracks; wherein the media file is compliant with the Base Media File Format as defined by the International Standard Organization and wherein the metadata including the ordered list of tile tracks are encapsulated within a 'tref' box of a 'moov' box. obtaining at least one tile from amongst the plurality of tiles composing a first frame of the plurality of frames; for each obtained tile, generating a tile track comprising NAL units, the NAL units corresponding to the obtained tile and corresponding tiles, each of the corresponding tiles belonging to a frame of the plurality of frames, different from the first frame, each of the corresponding tiles being located at the same spatial position in its own frame as the obtained tile in the first frame; independently encapsulating each of the tile tracks in a media file, characterized in that the method further comprises generating and encapsulating in the media file a base track comprising metadata including a reference to some of the generated tile tracks as a list of tile tracks to be decoded, the list being ordered according to a decoding order dependency of tiles within a frame, and including a 'dodp' reference type for identifying in the metadata the ordered list of tile tracks to be decoded, the ordered list providing an iterative rule for concatenating the NAL units having a same timestamp of the tile tracks identified in the ordered list, in the given order, the 'mdat' box of each of the tracks not including any extractor NAL unit, the base track further comprising parameter set information that is common to all tile tracks; wherein the media file is compliant with the Base Media File Format as defined by the International Standard Organization and wherein the metadata including the ordered list of tile tracks are encapsulated within a 'tref' box of a 'moov' box. <EOS>