The present technology relates to a reception apparatus, a reception method, a transmission apparatus and a transmission method in which NRT service is provided in digital broadcasting using an IP transmission method. There is provided a reception apparatus including: a channel selection control unit that performs a channel selection control of channel-selecting digital broadcasting using the IP transmission method; an acquisition control unit that controls acquisition of an application delivered through broadcasting or communication in the digital broadcasting based on signaling information transmitted at a layer higher than an IP layer in a protocol layer of the IP transmission method; and an application execution unit that executes the application acquired. The present technology is applicable to a television receiver, for example.

Methods, systems, and computer readable media for controlling delivery of content are provided. In some embodiments, a system for controlling delivery of content is provided. The system includes processing circuitry configured to: transmit, to a server, a plurality of requests for blocks of the content; while at least some of the plurality of requests are still outstanding: detect a change of a service characteristic of a connection between the system and the server; determine a preferred number of outstanding requests; and cancel at least some of the requests from the plurality that are still outstanding based on the preferred number and a count of the requests from the plurality that are still outstanding.

Methods, systems, and computer readable media for controlling delivery of content are provided. In some embodiments, a system for controlling delivery of content is provided. The system includes processing circuitry configured to: transmit, to a server, a plurality of requests for blocks of the content; while at least some of the plurality of requests are still outstanding: detect a change of a service characteristic of a connection between the system and the server; determine a preferred number of outstanding requests; and cancel at least some of the requests from the plurality that are still outstanding based on the preferred number and a count of the requests from the plurality that are still outstanding.

A method provides for tracking client playback events when playing an asset specified in a manifest for streaming adaptive bit rate (ABR) content. The method includes generating, with a manifest manipulator, a manifest that includes an asset URL inserted at a marker denoting a placement opportunity in a content manifest requested by a client. The manifest also includes callback URLs for tracking playback events to be returned by the client. The manifest manipulator sends the manifest to the client. At least one of the callback URLs is received by a tracking proxy associated with the manifest manipulator, indicating that the event has been performed by the client. In response, a tracking URL is obtained by the tracking proxy. The tracking URL is sent to at least one asset decision system participating in an asset decision process that resulted in providing the asset URL to the manifest manipulator.

For delivering an audio and/or video content using adaptive streaming from a cache server to a client device, the audio and/or video content being segmented into data segments available in various representations with respective audio and/or video qualities, the representations being time-aligned per segment, the segments being further divided into chunks, a method includes: obtaining a round-trip time value applicable between the cache server and the client device; computing a minimum bulk transfer size from the maximum average bitrate of the various representations of the audio and/or video content and from the obtained round-trip time value; computing a minimum bulk duration, with respect to the audio and/or video content, for the representation to be delivered to the client device; and delivering the audio and/or video content by burst transfers in the form of bulks of aggregated successive chunks for each segment in accordance with the computed minimum bulk duration.

Methods, systems, and computer readable media for controlling delivery of content are provided. In some embodiments, a system for controlling delivery of content is provided. The system includes processing circuitry configured to: transmit, to a server, a plurality of requests for blocks of the content; while at least some of the plurality of requests are still outstanding: detect a change of a service characteristic of a connection between the system and the server; determine a preferred number of outstanding requests; and cancel at least some of the requests from the plurality that are still outstanding based on the preferred number and a count of the requests from the plurality that are still outstanding.

Methods, systems, and computer readable media for controlling delivery of content are provided. In some embodiments, a system for controlling delivery of content is provided. The system includes processing circuitry configured to: transmit, to a server, a plurality of requests for blocks of the content; while at least some of the plurality of requests are still outstanding: detect a change of a service characteristic of a connection between the system and the server; determine a preferred number of outstanding requests; and cancel at least some of the requests from the plurality that are still outstanding based on the preferred number and a count of the requests from the plurality that are still outstanding.

A server may receive metadata associated with specific content in a transport signal stream from a content information service. The metadata may identify a point in time of the transport signal stream. The server may instruct an encoder to insert a marker into the transport signal stream corresponding to the point in time of the transport signal stream. The marker may indicate control of a trick mode to be enforced by a delivery platform subsequent to the point in time of the transport signal stream. The server may record the marker in a data store associated with the server.

A client device receives, from a server, first content directed to a first buffer in the client device and second content directed to a second buffer in the client device. The client device buffers the first content in the first buffer and buffers the second content in the second buffer. At least a portion of the second content is buffered in the second buffer substantially simultaneously with buffering the first content in the first buffer. The client device receives a command from a virtual set-top application, running on the server, that corresponds to the client device. The client device runs a virtual set-top local client that receives the command from the virtual set-top application and selects the first buffer as a content source. The selecting is performed in accordance with the command. The client device provides the selected content for display.

A client device receives, from a server, first content directed to a first buffer in the client device and second content directed to a second buffer in the client device. The client device buffers the first content in the first buffer and buffers the second content in the second buffer. At least a portion of the second content is buffered in the second buffer substantially simultaneously with buffering the first content in the first buffer. The client device receives a command from a virtual set-top application, running on the server, that corresponds to the client device. The client device runs a virtual set-top local client that receives the command from the virtual set-top application and selects the first buffer as a content source. The selecting is performed in accordance with the command. The client device provides the selected content for display.