In one form the invention provides a method of modifying a data file for transmission over a data network. The method comprises the steps of receiving the original data file and creating a header file, the header file including the length in bytes of the original data file. At least one repetition byte sequence is identified within the original data file, the repetition byte sequence comprising a byte value that is repeated consecutively within the repetition byte sequence. A modified data file is created by replacing the repetition byte sequence with a repetition marker, the repeated byte value, and a repeat frequency value representing the number of times the repeated byte value occurs within the repetition byte sequence. The repetition marker is added to the header file. The invention further provides a method of transmitting a data file to a remote device over a data network.

A display apparatus is provided. The display apparatus includes a receiver configured to receive content and metadata including genre information of the content, a controller configured to extract the genre information from the metadata, and calculate reliability of the genre information by analyzing the content and comparing the analyzed content with the genre information, and a video processor configured to process a video of the content according to the calculated reliability.

An implementation method and an application of a personalized presentation of associated multimedia content are provided. The method includes steps of: by a multimedia content provider, uniformly completing full file content when producing a multimedia file, and classifying segments of the content through a marking method according to an importance and/or an association degree of the content, so as to produce different versions of the multimedia file; and selectively previewing and/or playing by a user according to the different versions. The present invention is a flexible and efficient method for scalable organization, storage and transmission in an Internet on-demand system, thereby adding a flexible organization mechanism for the media content that an existing multimedia protocol lacks, and solving problems of an existing multimedia system, such as low transmission efficiency, waste of storage resources and poor user experience.

According to an aspect, there is provided a digital television (DTV) data stream including program and system information protocol (PSIP) data associated with content of the DTV data stream, the PSIP data including a virtual channel table (VCT) and an event information table (EIT), the EIT comprising: a source identification field identifying a source of an associated event in a DTV data stream; an event identification field indicating an identification of the event; a start time field indicating a star time of the event; a title field indicating a title of the event; and a descriptor comprising: a descriptor tag identifying the descriptor as a genre descriptor; a descriptor length indicating a total length of the descriptor; and at least one category code for an associated event in a DTV data stream, each category code specifying genre, program type, or category information of the associated event, wherein the at least one category code specifies at least one of a set of basic categories.

Provided is a method including providing a first audio content object that includes a plurality of audio content segments to a set of user computing devices. Each audio content segment of the plurality of audio content segments is associated with a first version. The method also includes obtaining a second version of a first audio content segment and updating the first version of the first audio content segment to the second version to generate a second audio content object that includes the second version of the first audio content segment and at least a first version of a second audio content segment. The method also includes providing the second audio content object to at least a first portion of the set of user computing devices and indicating a version history of the first audio content segment to at least the first portion of the set of user computing devices.

A system for providing digital video recorder options for editing content is disclosed. In particular, the system may include receiving requests for a first version of media content and providing access to the first version of the media content. A user that accesses the first version of the media content may select a portion of the media content, and indicate whether, for example, the portion should be skipped, modified, or emphasized when the media content is accessed on a subsequent occasion. The system, based on the selection and indication, may edit the first version of the media content to create a second version of the media content. When a subsequent attempt is made to access the first version of the media content, the system may provide the user with the option to access the second version of the media content.

A system for providing digital video recorder options for editing content is disclosed. In particular, the system may include receiving requests for a first version of media content and providing access to the first version of the media content. A user that accesses the first version of the media content may select a portion of the media content, and indicate whether, for example, the portion should be skipped, modified, or emphasized when the media content is accessed on a subsequent occasion. The system, based on the selection and indication, may edit the first version of the media content to create a second version of the media content. When a subsequent attempt is made to access the first version of the media content, the system may provide the user with the option to access the second version of the media content.

Systems and methods for providing playback features to a device are disclosed. In an aspect, one method can comprise transmitting a manifest and a state file to a recipient device, wherein processing of the manifest facilitates access to content and wherein processing of the state file facilitates one or more playback features associated with the content.

An embodiment of the present disclosure discloses a method for playing a video. The method comprises: parsing a file to be played to obtain one video stream and at least two audio streams by a player and saving the video and audio streams into a buffer; selecting a certain audio stream as a first audio stream, and obtaining the stream and the first audio stream from the buffer for decoding and playing; receiving an audio switching instruction, and determining one other channel of audio as a second audio stream according to the audio switching instruction; stopping decoding the first audio stream, and obtaining the video stream and the second audio stream from the buffer for decoding and playing. By using the method for playing a video, reparsing and readdressing are avoided; therefore, the time of addressing is saved, and the efficiency of switching is improved.

According to an aspect, there is provided a digital television (DTV) data stream including program and system information protocol (PSIP) data associated with content of the DTV data stream, the PSIP data including a virtual channel table (VCT) and an event information table (EIT), the EIT comprising: a source identification field identifying a source of an associated event in a DTV data stream; an event identification field indicating an identification of the event; a start time field indicating a star time of the event; a title field indicating a title of the event; and a descriptor comprising: a descriptor tag identifying the descriptor as a genre descriptor; a descriptor length indicating a total length of the descriptor; and at least one category code for an associated event in a DTV data stream, each category code specifying genre, program type, or category information of the associated event, wherein the at least one category code specifies at least one of a set of basic categories.