Transmitting device, transmitting method, receiving device, and receiving method
View Patent ↗This technology relates to a transmitting device, a transmitting method, a receiving device, and a receiving method capable of easily obtaining a mosaic screen. Metadata described by using an attribute and an attribute value, the metadata of content including signaling information indicating that video is thumbnail video suitable for forming the mosaic screen and the attribute indicating minimum buffer time required before replay of the content starts is delivered. This technology may be applied when the content is delivered, for example.
1. A transmitting device comprising:
a memory configured to store metadata of content, the metadata included in a Media Presentation Description (MPD) of Moving Picture Experts Group-Dynamic Adaptive Streaming over HTTP (MPEG-DASH) and a User Service Description (USD) of Multimedia Broadcast Multicast Service (MBMS); and
circuitry configured to deliver the metadata including signaling information indicating that video is thumbnail video suitable for forming a mosaic screen, the signaling information being included in a MPD/Period/AdaptiveSet/ViewPoint@schemeIdURI attribute of the MPD or in a /@r7 serviceClass attribute in the USD,
wherein the MPD includes
an MPD element as a root element,
air MPD/@profiles attribute indicating an operational profile which the MPD follows,
an MPD/Period element being information of a segment obtained by dividing the content in the time direction, and
an MPD/@minBufferTime attribute indicating a minimum buffer time required before the replay of the content starts.
2. The transmitting device according to claim 1 , wherein
the MPD includes the MPD/Period/AdaptationSet/ViewPoint/@schemeIdURI attribute.
3. A transmitting method comprising:
delivering, by circuitry of a transmitting device, metadata of content, the metadata included in a Media Presentation Description (MPD) of Moving Picture Experts Group-Dynamic Adaptive Streaming over HTTP (MPEG-DASH) and a User Service Description (USD) of Multimedia Broadcast Multicast Service (MBMS), the metadata including
signaling information indicating that video is thumbnail video suitable for forming a mosaic screen, the signaling information being included in a MPD/Period/AdaptationSet/ViewPoint@schemeIdURI attribute of the MPD or in a /@r7 serviceClass attribute in the USD,
wherein the MPD includes
an MPD element as a root element,
an MPD/@profiles attribute indicating an operational profile which the MPD follows,
an MPD/Period element being information of a segment obtained by dividing the content in the time direction, and
an MPD/@minBufferTime attribute indicating a minimum buffer time required before replay of the content starts.
4. A transmitting device comprising
a memory configured to store metadata of content, the metadata included in a Media Presentation Description (MPD) of Moving Picture Experts Group-Dynamic Adaptive Streaming over HTTP (MPEG-DASH) and a User Service Description (USD) of Multimedia Broadcast Multicast Service (MBMS); and
circuitry configured to deliver the metadata including signaling information indicating that video is thumbnail video suitable for forming a mosaic screen, the signaling information being included in a MPD/Period/AdaptationSet/ViewPoint@schemeIdURI attribute of the MPD or in a /@r7 ServiceClass attribute in the USD, wherein
the metadata includes content description metadata being an attribute in which contents of the content are described, and
the MPD includes
an MPD element as a root element,
an MPD/@profiles attribute indicating an operational profile which the MPD follows,
an MPD/Period element being information of a segment obtained by dividing the content in a time direction, and
an MPD/@minBufferTime attribute indicating a minimum buffer time required before replay of the content starts.
5. The transmitting device according to claim 4 , wherein
the metadata further includes specification of a dictionary which defines a component of the content description metadata.
6. The transmitting device according to claim 5 , wherein
the content description metadata is used iii filtering to select the thumbnail video used for forming the mosaic screen.
7. The transmitting device according to claim 6 , wherein
the content description metadata is the attribute of an MPD/Period/AdaptationSet/ViewPoint element.
8. A transmitting method comprising:
delivering, by circuitry of a transmitting device, metadata of content, the metadata included in a Media Presentation Description (MPD) of Moving Picture Experts Group-Dynamic Adaptive Streaming over HTTP (MPEG-DASH) and a User Service Description (USD) of Multimedia Broadcast Multicast Service (MBMS), the metadata including
signaling information indicating that video is thumbnail video suitable for forming a mosaic screen, the signaling information being included in a MPD/Period/AdaptationSet/ViewPoint@schemeIdURI attribute of the MPD or in a /@r7 serviceClass attribute in the USD, wherein
the metadata includes content description metadata being an attribute in which contents of the content are described, and
the MPD includes
an MPD element as a root element,
an MPD/@profiles attribute indicating an operational profile which the MPD follows,
an MPD/Period element being information of a segment obtained by dividing the content in a time direction, and
an MPD/@minBufferTime attribute indicating a minimum buffer time required before replay of the content starts.
9. A receiving device comprising:
a memory configured to store metadata of content, the metadata included in a Media Presentation Description (MPD) of Moving Picture Experts Group-Dynamic Adaptive Streaming over HTTP (MPEG-DASH) and a User Service Description (USD) of Multimedia Broadcast Multicast Service (MBMS); and
circuitry configured to receive the metadata including signaling information indicating that video is thumbnail video suitable for forming, a mosaic screen, the signaling information being included in a MPD/Period/AdaptationSet/ViewPoint@schemeIdURI attribute of the MPD or in a /@r7 serviceClass attribute in the USD,
wherein the MPD includes
an MPD element as a root element,
an MPD/@profiles attribute indicating an operational profile which the MPD follows,
an MPD/Period element including information of a segment obtained by dividing the content in the time direction, and
an MPD/@minBufferTime attribute indicating a minimum buffer time required before replay of the content starts.
10. The receiving device according to claim 9 , wherein the MPD includes the MPD/Period/AdaptationSet/ViewPoint/@schemeIdURI attribute.
11. A receiving method comprising:
receiving, by circuitry of a receiving device, metadata of content, the metadata included in a Media Presentation Description (MPD) of Moving Picture Experts Group-Dynamic Adaptive Streaming over HTTP (MPEG-DASH) and a User Service Description (USD) of Multimedia Broadcast Multicast Service (MBMS), the metadata including signaling information indicating that video is thumbnail video suitable for forming a mosaic screen, the signaling information being included in a MPD/Period/AdaptationSet/ViewPoint@schemeIdURI attribute of the MPD or in a /@r7 serviceClass attribute in the USD,
wherein the metadata includes
an MPD element as a root element,
an MPD/@profiles attribute indicating an operational profile which the MPD follows,
an MPD/Period element being information of a segment obtained by dividing the content in the time direction, and
an MPD/@minBufferTime attribute indicating a minimum buffer time required before replay of the content starts.
12. A receiving device comprising:
a memory configured to store metadata of content, the metadata included in a Media Presentation Description (MPD) of Moving Picture Experts Group-Dynamic Adaptive Streaming over HTTP (MPEG-DASH) and a User Service Description (USD) of Multimedia Broadcast Multicast Service (MBMS); and
circuitry configured to receive the metadata including signaling information indicating that video is thumbnail video suitable for forming a mosaic screen, the signaling information being included in a MPD/Period/AdaptationSet/ViewPoint@schemeIdURI attribute of the MPD or in a /@r7 serviceClass attribute in the USD, wherein
the metadata includes content description metadata being an attribute in which contents of the content are described, and
the MPD includes
an MPD element as a root element,
an MPD/@profiles attribute indicating an operational profile which the MPD follows,
an MPD/Period element being information of a segment obtained by dividing the content in a time direction, and
an MPD/@minBufferTime attribute indicating a minimum buffer time required before replay of the content starts.
13. The receiving device according to claim 12 , wherein
the metadata further includes specification of a dictionary which defines a component of the content description metadata.
14. The receiving device according to claim 13 , wherein
the content description metadata is used in filtering to select the thumbnail video used for forming the mosaic screen.
15. The receiving device according to claim 14 , wherein
the content description metadata is the attribute of an MPD/Period/AdaptationSet/ViewPoint element.
16. A receiving method comprising:
receiving, by circuitry, metadata of content, the metadata included in a Media Presentation Description (MPD) of Moving Picture Experts Group-Dynamic Adaptive Streaming over HTTP (MPEG-DASH) and a User Service Description (USD) of Multimedia Broadcast Multicast Service (MBMS), the metadata including signaling information indicating that video is thumbnail video suitable for forming a mosaic screen, the signaling information being included in a MPD/Period/AdaptationSet/ViewPoint@schemeIdURI attribute of the MPD or in a /@r7 serviceClass attribute in the USD, wherein
the metadata includes content description metadata being the attribute in which contents of the content are described, and
the MPD includes
MPD element as a root element,
an MPD/@profiles attribute indicating an operational profile which the MPD follows,
an MPD/Period element being information of a segment obtained by dividing the content in a time direction, and
an MPD/@minBufferTime attribute indicating a minimum buffer time required before replay of the content starts.