Method and apparatus for mixing compressed video
First Claim
1. A method for use in composing two or more compressed video input streams into at least one compressed output stream of a composed layout, the method comprising:
- converting each one of the two or more compressed video input streams into one or more sub-encoded stream, wherein each one of the sub-encoded streams is associated with a segment in the at least one compressed output stream of the composed layout;
manipulating the one-or more sub-encoded streams according to the location of its associated segment in the composed layout of the compressed output stream; and
transferring the manipulated one or more sub-encoded streams as the compressed output stream.
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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.
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Citations
22 Claims
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1. A method for use in composing two or more compressed video input streams into at least one compressed output stream of a composed layout, the method comprising:
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converting each one of the two or more compressed video input streams into one or more sub-encoded stream, wherein each one of the sub-encoded streams is associated with a segment in the at least one compressed output stream of the composed layout;
manipulating the one-or more sub-encoded streams according to the location of its associated segment in the composed layout of the compressed output stream; and
transferring the manipulated one or more sub-encoded streams as the compressed output stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for use in composing sub-encoded video input streams from two or more endpoint into at least one compressed output stream of a composed layout, the method comprising:
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receiving the sub-encoded video input streams from two or more endpoints;
associating each one of the two or more sub-encoded video input streams to a segment in the composed layout;
manipulating the received sub-encoded video input streams from two or more endpoint according to the location of its associated segment in the composed layout of the compressed output stream; and
transferring the manipulated two or more sub-encoded streams as the compressed output stream. - View Dependent Claims (13, 14, 15, 16)
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17. A system comprising:
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at least two input modules being operative to receive a compressed input stream; and
deliver one or more sub-encoded streams;
at least one output module being operative to receive two or more sub-encoded streams; and
deliver a compressed output stream of a composed layout;
wherein the output module manipulates location-dependent information in tile sub-encoded stream according to its location in the composed layout. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification