Broadcast signal transmission device, broadcast signal reception device, broadcast signal transmission method, and broadcast signal reception method
The present invention proposes a method for transmitting a broadcast signal. The method for transmitting a broadcast signal according to the present invention proposes a system which can support a next-generation broadcast service in an environment supporting next-generation hybrid broadcast using a terrestrial broadcast network and an Internet network. Further, in the environment supporting the next-generation hybrid broadcast, the present invention provides an effective signaling scheme that covers both the terrestrial broadcast network and the Internet network.
1. A method of transmitting a broadcast signal by a broadcast signal transmitter, the method comprising:
generating service signaling information for signaling a broadcast service and service data of the broadcast service, wherein the service data comprises service components included in the broadcast service and wherein one of the service components is a stereoscopic video which is encoded by Scalable High Efficiency Video Coding (SHVC);
generating a service list table, the service list table comprising bootstrap information for the service signaling information;
processing the service components, the service signaling information, and the service list table as Internet protocol (IP) packets;
processing the IP packets to generate a broadcast signal and transmitting the broadcast signal through a broadcast network,
wherein the stereoscopic video includes a multi-view view position Supplemental Enhancement Information (SEI) message indicating left and right view;
wherein view position information in the multi-view view position SEI message indicates orders of views from left to right; and
wherein the view position information is set to 0 for a left-most view and increasing by 1 for next view from left to right.
2. The method according to claim 1 , wherein the view position information indicates the orders of the views with dependency identifiers being set to zero for a base layer video and one for an enhancement layer video.
3. The method according to claim 1 , wherein the stereoscopic video includes a multi-view scene position SEI message being used for processing views prior to rendering on a 3D display.
4. The method according to claim 3 , wherein the multi-view scene position SEI message includes minimum disparity information indicating a 3D location of a front-most object in the stereoscopic video.
5. The method according to claim 4 , wherein the minimum disparity information is used for rendering receiver-generated graphic such as on-screen display (OSD) in front of the views on the 3D display.
6. An apparatus for transmitting a broadcast signal, the apparatus comprising: a service data generator to generate service signaling information for signaling a broadcast service and service data of the broadcast service, wherein the service data comprises service components included in the broadcast service and wherein one of the service components is a stereoscopic video which is encoded by Scalable High Efficiency Video Coding (SHVC);
a low level signaling generator to generate a service list table, the service list table comprising bootstrap information for the service signaling information;
a transport layer processor to process the service components, the service signaling information, and the service list table as Internet protocol (IP) packets;
a physical layer processor to process the IP packets to generate a broadcast signal and to transmit the broadcast signal through a broadcast network,
wherein the stereoscopic video includes a multi-view view position Supplemental Enhancement Information (SEI) message indicating left and right view;
wherein view position information in the multi-view view position SEI message indicates orders of views from left to right; and
wherein the view position information is set to 0 for a left-most view and increasing by 1 for next view from left to right.
7. The apparatus according to claim 6 , wherein the view position information indicates the orders of the views with dependency identifiers being set to zero for a base layer video and one for an enhancement layer video.
8. The apparatus according to claim 6 , wherein the stereoscopic video includes a multi-view scene position SEI message being used for processing views prior to rendering on a 3D display.
9. The apparatus according to claim 8 , wherein the multi-view scene position SEI message includes minimum disparity information indicating a 3D location of a front-most object in the stereoscopic video.
10. The apparatus according to claim 9 , wherein the minimum disparity information is used for rendering receiver-generated graphic such as on-screen display (OSD) in front of the views on the 3D display.