Abstract: An apparatus and a method for providing information used for generating and consuming multimedia content in a broadcast system supporting a multimedia service based on an Internet protocol are provided. The method includes composing a message type field containing information indicating on a type of control information contained in the control message, composing a length field containing information on the length of the control message, composing optional fields having different values according to the type of the control information, and composing a payload field containing content of the control information.

Abstract: A method and apparatus for transmitting and receiving content is provided. A method for transmitting content in a transmitter includes generating a file with one or more packages including at least one asset, and transmitting the generated file to a terminal.

Abstract: A method and apparatus are provided for receiving service discovery information in a client in a hybrid delivery multimedia transmission system, the method including receiving service discovery information related to a service and comprising service type information indicating that the service is provided by a plurality of channels including a first channel of a first network and a second channel of a second network, the second channel being different from the first channel, in a plurality of networks including the first network and the second network, different from the first network, and parsing the service type information.

Abstract: An apparatus is provided for transmitting multimedia content. The apparatus includes a communication interface and a controller coupled to the communication interface. The controller is configured to identify a packet including a packet header and a packet payload. The packet payload includes an access unit including media data related to the multimedia content and information related to the access unit. The controller is also configured to identify control information for delivery and consumption of the multimedia content, and transmit the identified packet and the identified control information. The information related to the access unit includes information on a sequence number of the access unit.

Abstract: A method and an apparatus for transmitting data in a multimedia transmission system are provided. The method includes receiving, from an encapsulation function layer, a second data unit having one or more first data units, configuring payload header information, the payload header information including a payload type and configuration information, by analyzing header information of the second data unit, configuring one or more payloads from the second data unit based on sizes of the one or more first data units, configuring a multimedia data packet by combining payload header information corresponding to each of the one or more payloads, and transmitting the multimedia data packet to a counterpart entity. Each of the one or more payload includes at least one payload element, the type of which is selected from among a first type, a second type, a third type, a fourth type, and a fifth type.

Abstract: A method for controlling brightness of an image according to the present disclosure comprises the steps of: determining a light source area on the basis of a light signal intensity of pixels included in the image; determining a surrounding area of the light source area in a predetermined manner; and compensating the brightness property of at least one of the light source area and the surrounding area on the basis of at least one of the property of the image, the property of a display device, or property of the surrounding environment.

Abstract: A method and apparatus for transmitting and receiving content is provided. A method for transmitting content in a transmitter includes generating a file with one or more packages including at least one asset, and transmitting the generated file to a terminal.

Abstract: Methods and apparatus are provided for receiving a file in a streaming system. The method includes receiving, by a client device, a file related to at least one segment, the at least one segment being decoded based on the file; and performing, by the client device, a streaming service based on the file. The file is updated for a live service, and the file includes information indicating if the file is to be updated.

Abstract: A method for receiving a multimedia service is provided. The method includes receiving service specific information for at least one multimedia service provided from different networks, selecting one service based on the service specific information, and receiving the selected service. The service specific information includes one of a first service map table including information about at least one service which is transmitted over a plurality of logical channels, and a second service map table including information about at least one service which is transmitted over a single logical channel. Each of the first and second service map tables includes asset-related information.

Abstract: An interface is provided for providing a media service. The interface includes an encapsulation layer for encapsulating coded media data, a delivery layer for transmitting the encapsulated media data to another entity, and a control layer for controlling transmission of the media data.

Abstract: A server for transmitting and receiving messages for a Signaling (S) layer in a Moving Picture Experts Group (MPEG) Media Transport (MMT) is provided. The server includes a first sub-layer of the S layer for producing first messages to provide information used for the use of MPEG a second sub-layer of the S layer for producing second messages to provide information used for delivering MPEG media, and a Delivery (D) layer for making external and internal deliveries of the first and the second messages, wherein each of the first and the second messages includes at least one field corresponding to each of the message type, version, length, extension field and payload.

Abstract: A display device and an image processing method thereof are provided. An image processing method of a display device, according to the present disclosure, comprises the steps of: dividing a display unit of the display device into a plurality of regions; measuring brightness expression performance of the display device, including a value of a relation between the average brightness of the display unit and the brightness of one region among the plurality of regions; calculating an average brightness of an image inputted to the display device; mapping, to the measured brightness expression performance, the calculated average brightness of the inputted image; adjusting the brightness of a region, excluding an emphasized region, of the inputted image so as to generate an adjusted image; and outputting the adjusted image.

Abstract: A method and an apparatus are provided for configuring content in a broadcast system. The method includes receiving a media processing unit (MPU) including a data part and a control part, the MPU being processed independently, wherein the data part includes media data and the control part includes parameters related to the media data; and processing the received MPU, wherein the MPU comprises at least one fragmentation unit, wherein the parameters comprise a first parameter indicating a sequence number of the MPU, and wherein the sequence number of the MPU is unique to where the MPU belongs.

Abstract: A method and an apparatus of transmitting media content in a multimedia system are provided. The method includes determining a transmission unit for transmitting at least one multimedia source related to the media content, generating a data stream including header information and the at least one multimedia source according to the determined transmission unit, and transmitting the data stream through a communication network.

Abstract: A method for transmitting multimedia data delivery characteristics information by a multimedia data transmission apparatus in a multimedia communication system is provided. The method includes transmitting, to a multimedia data reception apparatus, an element indicating whether multimedia data delivery characteristics information denoting information related to a Quality of Service (QoS) for multimedia data is included, and the multimedia data delivery characteristics information if the element indicates that the multimedia data delivery characteristics information is included.

Abstract: A method for transmitting media data in a Moving Picture Experts Group (MPEG) Media Transport (MMT) system is provided. The method includes receiving a Media Processing Unit (MPU) fragmented into one or more Media Fragment Units (MFUs), generating one or more multimedia data packets each including a packet header and a payload, based on the MPU, and transmitting the one or more multimedia data packets to a terminal. A payload header included in the payload includes identification information indicating an MPU to which at least one MFU included in the payload belongs, and a counter indicating the number of the at least one MFU.

Abstract: A method for receiving a multimedia service is provided. The method includes receiving service specific information for at least one multimedia service provided from different networks, selecting one service based on the service specific information, and receiving the selected service. The service specific information includes one of a first service map table including information about at least one service which is transmitted over a plurality of logical channels, and a second service map table including information about at least one service which is transmitted over a single logical channel. Each of the first and second service map tables includes asset-related information.

Abstract: A method for transmitting complex multimedia data is provided. The method includes selecting one of a data headers composed of basic transmission units determined according to an amount of multimedia included in the complex multimedia data, generating a basic transmission unit of the complex multimedia data according to the selected data header, packetizing the complex multimedia data in the basic transmission unit, and transmitting the packetized complex multimedia data to a receiver.

Abstract: Apparatus for transmitting media content in multimedia streaming system is provided. Apparatus includes a transceiver configured to receive a request for the media content; and transmit a plurality of segments regarding the media content, wherein the plurality of segments comprises an initialization segment (IS) and a media segment (MS), wherein the IS includes a moov box and a stsd box, wherein the stsd box includes sample description entries required to decode all representations within a representation group, and wherein each sample description entry in the stsd box corresponds to coding information of a media component in each of the representations, wherein the MS includes a moof box including a sample description index and a mdat box including media data, and wherein a value of the sample description index is an index of one of the sample description entries in the stsd box.

Abstract: A method of delivering media data in a hybrid network capable of providing broadcasting and internet communication together is provided. The method includes generating a Media Processing Unit (MPU) to process media data, and delivering the generated MPU, wherein the MPU includes an MPEG Media Transport (MMT) Processing Unit (MMPU) box including information on the MPU, a Media Data box (MDAT) including one or more media data fragments which are generated from the media data, and an MMFU box including information on each media data fragment.