Processing of multi-view video

Method of requesting multi-view video data by a client device from a server, the method comprising:

• sending a request for a manifest file to the server, the request comprising a plurality of first multi-view parameters indicative of a first data format associated with a multi-view display device of the client device, wherein at least one of the plurality of first multi-view parameters is indicative of the view angles required by the multi-view display device;
• receiving a manifest file comprising segment identifiers for identifying segments comprising multi-view video data, the first multi-view video data defining an encoded representation of a set of pictures associated with a set of view angles, the manifest file further comprising segment resource locators for locating one or more media servers configured to stream the segments, a resource locator associated with a segment comprising plurality of multi-view parameters indicative of a second data format of the multi-view video data comprised in the segment;
• transmitting a request for a segment to the server based on the manifest file, the segment request comprising a segment resource locator identifying a first source segment comprising first multi-view video data, the segment resource locator comprising a plurality of second multi-view parameters indicating that the first multi-view video data are of a second data format;
• and,
• receiving a segment of the first data format from the server, which is configured to generate the segment of the first data format based on the plurality of first multi-view parameters and the first multi-view video data, the generating the segment of the first data format comprising 1) selecting a subset of pictures from the set of pictures based on the view angles required by the multi-view display device, the subset of pictures being associated with a subset of view angles selected from the set of view angles;
• and 2) generating the segment of the first data format based on the subset of pictures.

A client device for requesting multi-view video data from a server, the client device comprising:

• a computer readable storage medium having computer readable program code embodied therewith, and a processor, coupled to the computer readable storage medium, wherein responsive to executing the computer readable program code, the processor is configured to perform executable operations comprising:
• sending a request for a manifest file to the server, the request comprising a plurality of first multi-view parameters indicative of a first data format associated with a multi-view display device of the client device, wherein at least one of the a plurality of first multi-view parameters is indicative of the view angles required by the multi-view display device;
• receiving a manifest file comprising segment identifiers for identifying segments comprising multi-view video data, the first multi-view video data defining an encoded representation of a set of pictures associated with a set of view angles, the manifest file further comprising segment resource locators for locating one or more media servers configured to stream the segments, a resource locator associated with a segment comprising a plurality of multi-view parameters indicative of a second data format of the multi-view video data comprised in the segment;
• transmitting a request for a segment to the server based on the manifest file, the segment request comprising a segment resource locator identifying a first source segment comprising first multi-view video data, the segment resource locator comprising a plurality of second multi-view parameters indicating that the first multi-view video data are of a second data format;
• and,
• receiving a segment of the first data format from the server, which is configured to generate the segment of the first data format based on the plurality of first multi-view parameters and the first multi-view video data, the generating the segment of the first data format comprising 1) selecting a subset of pictures from the set of pictures based on the view angles required by the multi-view display apparatus, the subset of pictures being associated with a subset of view angles selected from the set of view angles;
• and 2) generating the segment of the first data format based on the subset of pictures.

A server for processing multi-view video comprising:

• a computer readable storage medium having computer readable program code embodied therewith, and a processor, coupled to the computer readable storage medium, wherein responsive to executing the computer readable program code, the processor is configured to perform executable operations comprising:
• receiving a plurality of first multi-view parameters from a client device, the plurality of first multi-view parameters being indicative of a first data format associated with a multi-view display device of the client device, wherein at least one of the plurality of first multi-view parameters is indicative of the view angles required by the multi-view display device;
• receiving a request for a segment sent by the client device to a content source based on a manifest file, the segment request comprising a segment resource locator identifying a first source segment comprising first multi-view video data, the first multi-view video data defining an encoded representation of a set of pictures associated with a set of view angles, the segment resource locator comprising a plurality of second multi-view parameters indicating that the first multi-view video data are of a second data format;
• generating a segment of the first data format based on the plurality of first multi-view parameters, the first multi-view video data and, optionally, further multi-view video data associated with one or more further source segments, the generating the segment of the first data format comprising 1) selecting a subset of pictures from the set of pictures based on the view angles required by the multi-view display apparatus, the subset of pictures being associated with a subset of view angles selected from the set of view angles;
• and 2) generating the segment of the first data format based on the subset of pictures;
• and,
• transmitting the generated segment to the client device.