Transmission device, transmission method, reception device, and reception method
A reception side can easily recognize that metadata is inserted into an audio stream. A container of a predetermined format including an audio stream into which metadata is inserted is transmitted. Identification information indicating that the metadata is inserted into the audio stream is inserted into a layer of the container. At the reception side, it is possible to easily recognize that the metadata is inserted into the audio stream and acquire the metadata reliably without waste by performing the process of extracting the metadata inserted into the audio stream based on the recognition.
1. A reception device, comprising:
circuitry configured to:
receive, via a broadcast, a container of a determined format, wherein
the container includes an audio stream into which metadata is inserted, and
the metadata includes network access information to access a first server;
acquire information from the first server based on the network access information, wherein the information includes a URL of a second server, a name of a target file, a type of the target file, and time information;
acquire the target file from the second server based on the URL of the second server and the name of the target file; and
control display of content based on the acquired target file and the time information.
2. The reception device according to claim 1 , wherein the container further includes identification information that indicates insertion of the metadata into the audio stream.
3. The reception device according to claim 2 , wherein the identification information further indicates a frequency of the metadata.
4. The reception device according to claim 1 , wherein
the circuitry is further configured to control display of main content,
the content and the main content are concurrently displayable on a screen, and
the container further includes the main content.
5. The reception device according to claim 4 , wherein the circuitry is further configured to control the display of the content to superimpose the content on the main content.
6. The reception device according to claim 4 , wherein the circuitry is further configured to control the display of the main content in a partial-screen display form.
7. The reception device according to claim 6 , wherein the circuitry is further configured to control, based on reproduction of the content, the display of the main content in full-screen form.
8. The reception device according to claim 1 , wherein the first server and the second server are configured integrally.
9. A reception method, comprising:
receiving, by circuitry via a broadcast, a container of a determined format, wherein
the container includes an audio stream into which metadata is inserted, and
the metadata includes network access information for accessing a first server;
acquiring, by the circuitry, information from the first server based on the network access information, wherein the information includes a URL of a second server, a name of a target file, a type of the target file, and time information;
acquiring, by the circuitry, the target file from the second server based on the URL of the second server and the name of the target file; and
controlling, by the circuitry, display of content based on the acquired target file and the time information.
10. The reception method according to claim 9 , wherein the container further includes identification information that indicates insertion of the metadata into the audio stream.
11. The reception method according to claim 10 , wherein the identification information further indicates a frequency of the metadata.
12. The reception method according to claim 9 , further comprising:
controlling display of main content, wherein
the content and the main content are concurrently displayable on a screen, and
the container further includes the main content.
13. The reception method according to claim 12 , further comprising controlling the display of the content to superimpose the content on the main content.
14. The reception method according to claim 12 , further comprising controlling the display of the main content in a partial-screen display form.
15. The reception method according to claim 14 , further comprising controlling, based on reproduction of the content, the display of the main content in a full-screen display form.
16. The reception method according to claim 9 , wherein the first server and the second server are configured integrally.
17. A non-transitory computer-readable medium having stored thereon computer-executable instructions that, when executed by a processor, cause the processor to execute operations, the operations comprising:
receiving, via a broadcast, a container of a determined format, wherein
the container includes an audio stream into which metadata is inserted, and
the metadata includes network access information for accessing a first server;
acquiring information from the first server based on the network access information, wherein the information includes a URL of a second server, a name of a target file, a type of the target file, and time information;
acquiring the target file from the second server based on the URL of the second server and the name of the target file; and
controlling display of content based on the acquired target file and the time information.