Method, device, and computer program for improving streaming of virtual reality media content

A method for receiving media data complying with an omnidirectional media format, the method comprising:

• receiving, from a server, a media presentation description complying with the MPEG-DASH standard and including (i) a uniform resource identifier of media data of one or more regions, (ii) media information describing media data of each of the one or more regions, and (iii) quality information signaling a quality rank of at least one of the one or more regions;
• sending, to the server, at least one request message to request media data corresponding to one or more regions by using at least one uniform resource identifiers of the media presentation description;
• and
• receiving, from the server, the media data corresponding to the one or more regions according to the at least one request message.

A method for providing media data complying with an omnidirectional media format, the method comprising:

• transmitting, to a server, a media presentation description complying with the MPEG-DASH standard and including (i) a uniform resource identifier of media data of one or more regions, (ii) media information describing media data of each of the one or more regions, and (iii) quality information signaling a quality rank of at least one of the one or more regions;
• receiving, from the server, at least one request message to request media data corresponding to one or more regions by using at least one uniform resource identifiers of the media presentation descriptor;
• and
• providing, to the server, the media data corresponding to the one or more regions according to the at least one request message.

A client device for receiving media data complying with an omnidirectional media format, the client device comprising:

• a hardware processor;
• and
• a memory storing one or more programs configured to be executed by the hardware processor, the one or more programs including instructions for:
• receiving, from a server, a media presentation description complying with the MPEG-DASH standard and including (i) a uniform resource identifier of media data of one or more regions, (ii) media information describing media data of each of the one or more regions, and (iii) quality information signaling a quality rank of at least one of the one or more regions;
• sending, to the server, at least one request message to request media data corresponding to one or more regions by using at least one uniform resource identifiers of the media presentation description;
• and
• receiving, from the server, the media data corresponding to the one or more regions according to the at least one request message.

A server device for providing media data complying with an omnidirectional media format, the server device comprising:

• a hardware processor;
• and
• a memory storing one or more programs configured to be executed by the hardware processor, the one or more programs including instructions for:
• transmitting, to a server, a media presentation description complying with the MPEG-DASH standard and including (i) a uniform resource identifier of media data of one or more regions, (ii) media information of the media data of each of the regions, and (iii) quality information signaling a quality rank of at least one of the one or more regions;
• receiving, from the server, at least one request message to request media data corresponding to one or more regions by using at least one uniform resource identifiers of the media presentation description;
• and
• providing, to the server, the media data corresponding to the one or more regions according to the at least one request message.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute a method comprising:

• receiving, from a server, a media presentation description complying with the MPEG-DASH standard and including (i) a uniform resource identifier of media data of one or more regions, (ii) media information describing media data of each of the one or more regions, and (iii) quality information signaling a quality rank of at least one of the one or more regions;
• sending, to the server, at least one request message to request media data corresponding to one or more regions by using at least one uniform resource identifiers of the media presentation description;
• and
• receiving, from the server, the media data corresponding to the one or more regions according to the at least one request message.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute a method comprising:

• transmitting, to a server, a media presentation description complying with the MPEG-DASH standard and including (i) a uniform resource identifier of media data of one or more regions, (ii) media information describing media data of each of the one or more regions, and (iii) quality information signaling a quality rank of at least one of the one or more regions;
• receiving, from the server, at least one request message to request media data corresponding to one or more regions by using at least one uniform resource identifiers of the media presentation description;
• and
• providing, to the server, the media data corresponding to the one or more regions according to the at least one request message.