A device may be configured to parse a syntax element specifying the number of available languages within a presentation associated with an audio stream. A device may be configured to parse one or more syntax elements identifying each of the available languages and parse an accessibility syntax element for each language within the presentation.

A device may be configured to parse a syntax element specifying the number of available languages within a presentation associated with an audio stream. A device may be configured to parse one or more syntax elements identifying each of the available languages and parse an accessibility syntax element for each language within the presentation.

Control information for configuring an audiovisual device to present multimedia content according to a first service type may be generated. A method may include generating first control information for configuring an audiovisual device to decode a multimedia stream, generating first data that indicates a structure of the first control information, and transmitting the first data and the first control information. The first control information may be generated according to a first protocol version. Second data and second control information may be similarly generated and transmitted according to a second protocol version. Disclosed techniques may facilitate receiving devices to determine whether they support received wireless transmissions and decode the transmissions based on the control information.

The present disclosure is directed toward systems and methods for providing a call to action in connection with a live video stream. For example, systems and methods described herein enable a broadcaster to configure one or more benefits and one or more calls to action. Systems and methods described herein further provide the one or more calls to action in connection with a live video stream and based on the broadcaster's configurations. In response to a live video stream viewer correctly interacting with a provided call to action, systems and methods described herein provide a benefit to the viewer.

The present disclosure is directed toward systems and methods for providing a call to action in connection with a live video stream. For example, systems and methods described herein enable a broadcaster to configure one or more benefits and one or more calls to action. Systems and methods described herein further provide the one or more calls to action in connection with a live video stream and based on the broadcaster's configurations. In response to a live video stream viewer correctly interacting with a provided call to action, systems and methods described herein provide a benefit to the viewer.

A digital receiver for processing a broadcast signal includes a receiving module configured to receive the broadcast signal. Further, the broadcast signal includes service components of a broadcast service, service layer signaling (SLS) information for the broadcast service and a service list table for providing bootstrap information, and the service components include at least one of audio or video data. Further, the bootstrap information is different based on a type of delivery protocol of the SLS information, and the type of delivery protocol corresponds to either a Real-time Object delivery over Unidirectional Transport (ROUTE) protocol or a Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP). The digital receiver also includes a processor configured to process the service list table, the SLS information and the service components of the broadcast service.

A digital receiver for processing a broadcast signal includes a receiving module configured to receive the broadcast signal. Further, the broadcast signal includes service components of a broadcast service, service layer signaling (SLS) information for the broadcast service and a service list table for providing bootstrap information, and the service components include at least one of audio or video data. Further, the bootstrap information is different based on a type of delivery protocol of the SLS information, and the type of delivery protocol corresponds to either a Real-time Object delivery over Unidirectional Transport (ROUTE) protocol or a Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP). The digital receiver also includes a processor configured to process the service list table, the SLS information and the service components of the broadcast service.

A method for broadcasting a data stream in at least one broadcast network. The method includes inserting, into the data stream, at least one identifier associated with at least one broadcast area of the broadcast network used to broadcast the data stream. The at least one identifier is transmitted in signalling information of an application to be executed by at least one receiver of the data stream.

A system and method implements communications between a TV operator's infrastructure and set-top boxes (STBs) through a TV operator's infrastructure, wherein the infrastructure includes at least one Conditional Access System (CAS), a messaging engine and a Set Top Box (STB), the STB including a unique identification value. The method comprises receiving a structured message in the messaging engine; computing a stream out of multiple received structured messages by the messaging engine and sending to the multiplexor; including the stream of structured messages in a broadcasted signal transmitted through the TV operator's infrastructure; receiving the broadcasted signal by the STB and extracting a structured message; and comparing addressing information in the extracted structured message with a unique identification of the STB. Messages directed to the STB can be displayed.

A digital receiver for synchronizing multiple components delivered on a broadband network and a broadcast network, the digital receiver including a broadband network interface configured to receive broadband data including at least one audio component for a service via the broadband network, wherein the at least one audio component relates to a Dynamic Adaptive Streaming over HTTP (DASH) segment, wherein the broadband network comprises an internet network; a broadcast network interface configured to receive a broadcast signal including a video component for the service, first timing information, and second timing information via the broadcast network, wherein the broadcast signal further includes a MPD (Media Presentation Description) having a DASH representation containing a segment URL for the DASH segment delivered over the broadband network; and a processor configured to calculate an offset based on a receiver wall clock, and process at least one of the at least one audio component or the video component which is time-aligned based on the calculated offset.