Transmission device, transmission method, media processing device, media processing method, and reception device
A container having a predetermined format is transmitted, the container including a media stream. A predetermined number of pieces of media access information associated for a set of media access control, are sequentially inserted into a layer of the media stream or a layer of the container. For example, the media access information includes identification information for making a distinction from different media access information and identification information for making an association with the different media access information. A set of media access control can thereby be favorably performed on a reception side.
1. A transmission device comprising:
transmission circuitry configured to transmit a container having a predetermined format, the container including a media stream; and
processing circuitry configured to sequentially insert a predetermined number of pieces of media access information for media access control, into a MPEG-H audio stream, wherein
the predetermined number of pieces of media access information are included in MPEG-H Audio Stream (MHAS) packets of a predetermined type, and
the media access information includes (i) user interface information that is displayed in a user selection graphical user interface (GUI) for a user to select a reproduced media, (ii) period information indicating a corresponding scene in the media stream, and (iii) notification information for notifying a user of a state of the user selection GUI that is configured to change an aspect of playback of content to the user according to a user interaction with the user selection GUI.
2. The transmission device according to claim 1 , wherein the media access information includes identification information for making a distinction from different media access information.
3. The transmission device according to claim 1 , wherein the media access information includes identification information for making an association with different media access information.
4. The transmission device according to claim 1 , wherein the media access information includes time information for managing a boot of an action command.
5. The transmission device according to claim 1 , wherein the media access information includes absolute time information indicating a deadline of media reproduction.
6. The transmission device according to claim 1 , wherein the processing circuitry is configured to allow each piece of divided information acquired by dividing the media access information, to be individually inserted into a predetermined number of MHAS packets.
7. The transmission device according to claim 6 , wherein
the media stream includes MPEG-H audio stream, and
the processing circuitry is configured to insert the divided information into a user data region of an audio frame as each of the MHAS packets.
8. The transmission device according to claim 1 , wherein the user interface information includes text that is displayed in the user selection GUI and defines selectable elements that are displayed in the user selection GUI.
9. A reception device comprising:
reception circuitry configured to receive video data of first media data and an MPEG-H audio stream into which a predetermined number of pieces of media access information for media access control have been sequentially inserted, from an external device through a digital interface; and
control circuitry configured to
control display of a user selection graphical user interface (GUI) that includes user interface information, the user interface information being included in the media access information, and
control decode processing of decoding the MPEG-H audio stream to acquire audio data of the first media data, media data acquisition processing of acquiring second media data based on the media access information, and media presentation processing of performing media presentation based on the first media data and the second media data, wherein
the predetermined number of pieces of media access information are included in MPEG-H Audio Stream (MHAS) packets of a predetermined type, and
the media access information includes (i) the user interface information that is displayed in the user selection GUI, (ii) period information indicating a corresponding scene of the media presentation, and (iii) notification information for notifying a user of a state of the user selection GUI that is configured to change an aspect of playback of content to the user according to a user interaction with the user selection GUI.
10. The reception device according to claim 9 , wherein the media access information includes identification information for making a distinction from different media access information.
11. The reception device according to claim 9 , wherein the media access information includes identification information for making an association with different media access information.
12. The reception device according to claim 9 , wherein the media access information includes time information for managing a boot of an action command.
13. The reception device according to claim 9 , wherein the media access information includes absolute time information indicating a deadline of media reproduction.
14. The reception device according to claim 9 , wherein the user interface information includes text that is displayed in the user selection GUI and defines selectable elements that are displayed in the user selection GUI.
15. The reception device according to claim 9 , wherein the control circuitry is configured to acquire the media access information from an audio decoder that decodes the MPEG-H audio stream.
16. A transmission method comprising:
transmitting, by transmission circuitry, a container having a predetermined format, the container including a media stream; and
sequentially inserting, by processing circuitry, a predetermined number of pieces of media access information for media access control, into a MPEG-H audio stream, wherein
the predetermined number of pieces of media access information are included in MPEG-H Audio Stream (MHAS) packets of a predetermined type, and
the media access information includes (i) user interface information that is displayed in a user selection graphical user interface (GUI), (ii) period information indicating a corresponding scene in the media stream, and (iii) notification information for notifying a user of a state of the user selection GUI that is configured to change an aspect of playback of content to the user according to a user interaction with the user selection GUI.
17. A reception method comprising:
receiving, by reception circuitry, video data of first media data and an MPEG-H audio stream into which a predetermined number of pieces of media access information for media access control have been sequentially inserted, from an external device through a digital interface;
controlling, by control circuitry, display of a user selection graphical user interface (GUI) that includes user interface information, the user interface information being included in the media access information; and
controlling, by the control circuitry, decode processing of decoding the MPEG-H audio stream to acquire audio data of the first media data, media data acquisition processing of acquiring second media data based on the media access information, and media presentation processing of performing media presentation based on the first media data and the second media data, wherein
the predetermined number of pieces of media access information are included in MPEG-H Audio Stream (MHAS) packets of a predetermined type, and
the media access information includes (i) the user interface information that is displayed in the user selection GUI, (ii) period information indicating a corresponding scene of the media presentation, and (iii) notification information for notifying a user of a state of the user selection GUI that is configured to change an aspect of playback of content to the user according to a user interaction with the user selection GUI.