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Keyframe mitigation for video streams with multiple receivers

  • US 10,575,035 B2
  • Filed: 12/04/2018
  • Issued: 02/25/2020
  • Est. Priority Date: 11/21/2016
  • Status: Active Grant
First Claim
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1. A method comprising:

  • at a video decoder, receiving from an encoder an encoded bitstream representing a sequence of video frames, the sequence of video frames including a keyframe and at least one pre-keyframe video frame received prior to the keyframe in the sequence of video frames, wherein the keyframe includes improvement data generated by the encoder to enable the video decoder to generate display frames based on the at least one pre-keyframe video frame that was received prior to the keyframe;

    generating one or more improvement frames based on the at least one pre-keyframe video frame using the improvement data included with the keyframe, wherein the improvement data is related to motion compensation;

    generating a predetermined number of display frames subsequent to the keyframe, wherein each of the predetermined number of display frames is generated using a combination of an improvement frame from the one or more improvement frames and a decoded frame; and

    upon completion of generating the predetermined number of display frames, generating additional subsequent display frames using a decoded frame without an improvement frame.

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