A reception apparatus comprising: circuitry configured to receive a digital data stream; acquire closed caption information included in the digital data stream, wherein the closed caption information is a timed text markup language, TTML, file in a media segment in an MPEG-4, MP4, file format in the received digital data stream; acquire control information included in the digital data stream, comprising selection information indicating a selection of a specific mode from a plurality of modes for specifying when closed caption text is to be displayed, wherein the control information is a media presentation description, MPD, file in an extensible markup language, XML, format; and output, based on the selection information included in the control information, the closed caption text included in the closed caption information for display at a display time according to the specific mode, wherein the TTML file and the MPD file are received in a real-time object delivery over unidirectional transport, ROUTE, session, wherein the plurality of modes includes a first mode and a second mode, wherein, if the specific mode is the first mode, the circuitry is configured to output the closed caption text specified in the TTML file for display, the display time being specified by the time information in the TTML data, and wherein, if the specific mode is the second mode, the circuitry is configured to output the closed caption text specified in the TTML file for display, the display time being specified by time information defined in a fragment header of the media segment comprising the TTML file ignoring the time information specified in the TTML file. circuitry configured to receive a digital data stream; acquire closed caption information included in the digital data stream, wherein the closed caption information is a timed text markup language, TTML, file in a media segment in an MPEG-4, MP4, file format in the received digital data stream; acquire control information included in the digital data stream, comprising selection information indicating a selection of a specific mode from a plurality of modes for specifying when closed caption text is to be displayed, wherein the control information is a media presentation description, MPD, file in an extensible markup language, XML, format; and output, based on the selection information included in the control information, the closed caption text included in the closed caption information for display at a display time according to the specific mode, receive a digital data stream; acquire closed caption information included in the digital data stream, wherein the closed caption information is a timed text markup language, TTML, file in a media segment in an MPEG-4, MP4, file format in the received digital data stream; acquire control information included in the digital data stream, comprising selection information indicating a selection of a specific mode from a plurality of modes for specifying when closed caption text is to be displayed, wherein the control information is a media presentation description, MPD, file in an extensible markup language, XML, format; and output, based on the selection information included in the control information, the closed caption text included in the closed caption information for display at a display time according to the specific mode, wherein the TTML file and the MPD file are received in a real-time object delivery over unidirectional transport, ROUTE, session, wherein the plurality of modes includes a first mode and a second mode, wherein, if the specific mode is the first mode, the circuitry is configured to output the closed caption text specified in the TTML file for display, the display time being specified by the time information in the TTML data, and wherein, if the specific mode is the second mode, the circuitry is configured to output the closed caption text specified in the TTML file for display, the display time being specified by time information defined in a fragment header of the media segment comprising the TTML file ignoring the time information specified in the TTML file.