| CPC H04N 19/146 (2014.11) [H04N 19/124 (2014.11); H04N 19/172 (2014.11)] | 15 Claims |
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1. A computer-implemented method comprising:
determining a first resolution for a first fragment of a live streaming video file based on a first just-noticeable difference quality metric of the first fragment at a bitrate;
encoding the first fragment at the first resolution for the bitrate to generate an encoded first fragment;
determining a second different resolution for a second fragment of the live streaming video file based on a second just-noticeable difference quality metric of the second fragment at the bitrate and based on remaining within an amount of time available for encoding of the second fragment for live viewing, wherein the determining the second different resolution for the second fragment comprises determining the second different resolution is a lower resolution than the first resolution when (i) a value of the second just-noticeable difference quality metric of the second fragment at the first resolution and the bitrate is less than a threshold value, and (ii) a value of the first just-noticeable difference quality metric of the first fragment at the first resolution and the bitrate is greater than or equal to the threshold value;
encoding the second fragment at the second different resolution for the bitrate to generate an encoded second fragment;
receiving a request for a manifest for the live streaming video file from a client device;
generating the manifest for the client device that identifies a single video representation for the bitrate that comprises the encoded first fragment and the encoded second fragment; and
sending the manifest to the client device.
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