A method, an apparatus and a computer program product for video encoding and video decoding

An apparatus comprising at least one processor, memory including computer program code, the memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following:

• receiving encoded omnidirectional video content for displaying, wherein the encoded omnidirectional video content comprises a viewport region, a margin region outside the viewport region and a background region;
• defining image regions to be included in the margin region, wherein the definition is based on a margin speed threshold;
• determining a head speed and a direction of motion;
• means for determining when the head speed is greater than or equal to the margin speed threshold;
• adding negative margins in one or more directions with respect to the viewport;
• downloading the viewport with a first quality;
• and
• downloading the negative margins at a quality lower than the first quality.

A method, comprising:

• receiving encoded omnidirectional video content for displaying, wherein the encoded omnidirectional video content comprises a viewport region, a margin region outside the viewport region and a background region;
• defining image regions to be included in the margin region, wherein the definition is based on a margin speed threshold;
• determining a head speed and a direction of motion;
• determining when the head speed is greater than or equal to the margin speed threshold, and as a response to the determining, adding negative margins in one or more direction with respect to the viewport;
• downloading the viewport with a first quality;
• and downloading the negative margins at a quality lower than the first quality.

A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions executable with the machine for performing operations, the operations comprising:

• receiving encoded omnidirectional video content for displaying, wherein the encoded omnidirectional video content comprises a viewport region, a margin region outside the viewport region and a background region;
• defining image regions to be included in the margin region, wherein the definition is based on a margin speed threshold;
• determining a head speed and a direction of motion;
• determining when the head speed is greater than or equal to the margin speed threshold, and as a response to the determining, adding negative margins in one or more direction with respect to the viewport;
• downloading the viewport with a first quality;
• and downloading the negative margins at a quality lower than the first quality.