METHOD AND APPARATUS FOR MIXING COMPRESSED VIDEO
First Claim
1. A method of providing a composed frame in a videoconference, comprising:
- receiving two or more sub-encoded video streams, each sub-encoded video stream being associated with an endpoint;
associating the two or more sub-encoded video streams to segments in the composed frame;
processing the sub-encoded video streams according to the location of their associated segments in the composed frame; and
creating the composed frame from the processed sub-encoded video streams.
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Accused Products
Abstract
Disclosed herein is a method and apparatus for mixing compressed video useable in a videoconferencing environment having a plurality of endpoint users. Through the use of the method and apparatus, each endpoint can receive a unique layout displaying some subset of the users at the endpoints. Input streams from each endpoint are uncompressed, resized, and scaled to fit the segment in the layout for particular endpoints, and then encoded (or compressed) by a sub-encoder into a sub-encoded stream according to the compression parameters. Each sub-encoded streams is further encoded and associated with a position in the layout. Different layouts may be sent to different conferees, and different compression standards may be used for each endpoint.
31 Citations
19 Claims
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1. A method of providing a composed frame in a videoconference, comprising:
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receiving two or more sub-encoded video streams, each sub-encoded video stream being associated with an endpoint;
associating the two or more sub-encoded video streams to segments in the composed frame;
processing the sub-encoded video streams according to the location of their associated segments in the composed frame; and
creating the composed frame from the processed sub-encoded video streams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of composing a videoconferencing layout, comprising:
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receiving at a multipoint control unit (MCU) a plurality of compressed video streams;
converting the compressed video streams to sub-encoded streams, wherein each of the sub-encoded streams is associated with a segment in the composed layout;
manipulating the sub-encoded streams according to the location of its associated segment in the composed layout; and
transferring the manipulated sub-encoded streams to a receiving endpoint. - View Dependent Claims (10, 11, 12, 13)
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14. An apparatus adapted to:
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receive a plurality of sub-encoded streams each associated with a sending endpoint;
receive location information relating to the location of a segment in a composed video frame of a videoconference associated with the sub-encoded video streams;
process the sub-encoded video streams according to the location information; and
creating a composed video frame from the processed sub-encoded video streams. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification