Abstract:
The present technology relates to a reception device, a reception method, a transmission device, and a transmission method that make it possible to provide content according to a preference of a user. Provided is a reception device including: a tuning control unit configured to perform tuning control for tuning digital broadcasting using an Internet Protocol (IP) transmission scheme; and an acquisition control unit configured to perform acquisition control for acquiring content transmitted in the digital broadcasting according to a result of a matching process on a provider-side PDI-A indicating an answer set by a provider that provides content to a question on preference of a user included in transmission information transmitted in an upper layer of an IP layer of protocol layers of the IP transmission scheme and client-side PDI-A indicating an answer set by the user to the question in the digital broadcasting. The present technology can be applied to, for example, a television receiver set.
Abstract:
The present technology relates to a reception apparatus, a reception method, a transmission apparatus, and a transmission method, by which an increase in data size of signaling information transmitted by broadcasting can be suppressed. Provided is a reception apparatus including: a reception unit that receives a broadcast wave of digital broadcasting using an IP (Internet Protocol) transmission system; and a control unit that controls, on the basis of information for managing only a broadcast component transmitted by a broadcast wave of the digital broadcasting, which is first signaling information transmitted by a broadcast wave of the digital broadcasting, or information for managing at least one component of the broadcast component and a communication component transmitted by communication, which is second signaling information transmitted by communication, operations of respective units for acquiring the at least one component of the broadcast component and the communication component. The present technology is applicable to a television receiver, for example.
Abstract:
The present technology relates to a transmission apparatus, a transmission method, a reception apparatus, a receiving method, and a program that enable prompt data delivery. An LCT packet including a portion which is data including part of a fragment; and an LCT header is delivered. The fragment includes a moof and an mdat including an mdat header and a sample group. The moof includes BaseMediaDecodeTime representing a presentation time of a first sample of the mdat. The LCT header includes a sequence number representing a position of the fragment; a version representing a position of the part of the fragment in the fragment; an NTP time corresponding to the BaseMediaDecodeTime; sample count start information representing a position of a first sample of the part of the fragment from a first sample of the fragment; and a moof subset that is at least part of the moof. The present technology can be applied to, for example, a case of multicast-delivering content.
Abstract:
Provided are devices and methods that enable content distribution of data units generated by dividing a GOP, and GOP reconstruction and reproduction on the reception device side. A transmission device generates a sub GOP media segment as packet-stored data, the sub GOP media segment storing media data including only part of constituent data of a Group of Pictures (GOP) as a processing unit of encoded data and metadata corresponding to the media data, and generates and transmits a packet having an in-GOP location identifier recorded as packet additional information therein, the in-GOP location identifier indicating the in-GOP location of the media data stored in the sub GOP media segment. A reception device arranges media data dispersed and stored in packets by referring to the in-GOP location identifiers stored in received packets, and reconstructs and decodes a GOP.
Abstract:
The present technology relates to a receiving device, a receiving method, a transmitting device, and a transmitting method capable of handling various operation modes with high flexibility.Various operation modes in digital broadcasting using an IP transmission method can be handled with high flexibility by use of a service package unit which processes one or a plurality of components constituting a particular service of a plurality of services included in a broadcasting wave of the digital broadcasting using an IP transmission method, and a control signal transmitted by FLUTE session or UDP, in such a manner that the component or components and the first control signal are processed in units of service based on an IP address contained in each packet. The present technology is applicable to a television receiver, for example.
Abstract:
The present disclosure relates to a content supply device, a content supply method, a program, and a content supply system that make it possible to extend an adaptive streaming technique employing the DASH and supply content through a plurality of different delivery paths According to a first aspect of the present disclosure, there is provided a content supply device that supplies a plurality of pieces of streaming data that include content of a same subject and differ in an attribute according to an adaptive streaming technique, the content supply device including: a supply unit configured to supply the plurality of pieces of streaming data to a reception side via a plurality of different networks; and a metafile generating unit configured to generate a metafile including an acquisition destination of a manifest file in which a QoS parameter for selecting the plurality of pieces of streaming data to be supplied by the reception side and a condition value of the QoS parameter are described and supply the metafile to the reception side. The present disclosure can be applied to a system that delivers content in a streaming manner.
Abstract:
The present disclosure relates to a content supply device, a content supply method, a program, and a content supply system, which are capable of extending the DASH and seamlessly switching reception and reproduction of unicast transmission, multicast transmission, or broadcast transmission. A content supply device includes a HTTP transmitting unit that unicast-transmits a segment file of streaming data according to HTTP, an RTP transmitting unit that stores the segment file in an RTP packet without change, and transmits the RTP packet through at least one of multicasting and broadcasting according to RTP, and a metafile generating unit that generates a metafile in which a temporal correspondence relation between the segment file transmitted according to the HTTP and the segment file transmitted according to the RTP is described, and supplies the metafile to a reception side. The present disclosure can be applied to a system that delivers content in a streaming manner.
Abstract:
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.
Abstract:
A device and a method for realizing accurate TTML subtitle data display control are provided. A TTML subtitle data storage packet storing TTML subtitle data as payload of a MMT packet defined in the MMT format, and a signaling message including subtitle-related information corresponding to the TTML subtitle data are transmitted from a transmission device to a reception device. The signaling message defines therein a time mode (TMD) as subtitle display timing control mode, and an operation mode (OPM) of selectively performing instant display of subtitles or TTML description-based display thereof, and the reception device can conduct display control in a designated mode.
Abstract:
There is provided a receiving apparatus including circuitry that is configured to receive a broadcasting wave that transfers digital data according to an IP (Internet Protocol) having a protocol stack of layers, wherein the circuitry is further configured to implement a first decoder that uses a first key transferred in a first control signal at a first layer to decode a second key acquired in a second control signal transferred at a second layer, the second layer being a higher layer than the first layer in the protocol stack, and a second decoder that uses the decoded second key to decode an encoded component that configures a particular broadcasting service which is included in a stream obtained through the broadcasting wave.