×

Multi-channel video communication system and method for processing multi-channel video communication

  • US 8,890,930 B2
  • Filed: 05/06/2010
  • Issued: 11/18/2014
  • Est. Priority Date: 05/12/2009
  • Status: Active Grant
First Claim
Patent Images

1. A method for processing multi-channel video communication, comprising:

  • encoding a video source to generate a scalable original video bit-stream;

    obtaining device capabilities and network conditions of a remote client device;

    calculating a filter parameter according to the device capabilities and the network condition;

    truncating the original video bit-stream according to the filter parameter, obtaining a final video bit-stream and sending the final video bit-stream to the remote client device;

    wherein the filter parameter comprises;

    a priority threshold used in truncating the bit-stream according to priorities of bit-stream packets in the video bit-stream;

    the priority threshold is calculated by applying a selecting method to parameter information stored in a storing unit according to the device capabilities and the network conditions of the remote client device;

    the parameter information is a cyclic queue of information of all bit-stream packets in an image group;

    the image group includes a first key frame and frames between the first key frame and a second key frame in the scalable original video bit-stream;

    the second key frame is a key frame immediately preceding the first key frame in a basic quality layer of the scalable original video bit-stream.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×