Cascaded standardized hot-pluggable transceiving units providing a multiviewer functionality
A system comprising cascaded standardized hot-pluggable transceiving units for providing a multiviewer functionality. A first layer comprises a plurality of transceiving units implementing a scaling functionality followed by a pre-positioning functionality. A second layer comprises a transceiving unit implementing a positioning functionality. Source video streams are scaled by the first layer, and further combined to generate primary mosaiced video streams. The primary mosaiced video streams are combined by the second layer to generate a secondary mosaiced video stream. Alternatively, the first layer comprises at least one transceiving unit only implementing the scaling functionality. Source video streams are scaled by the first layer to generate scaled video streams. The scaled video streams are combined by the second layer to generate a mosaiced video stream.
1. A system comprising:
at least one standardized hot-pluggable transceiving units respectively comprising:
a housing having specific standardized dimensions and adapted to being inserted into a chassis of a hosting unit;
a plurality of connectors, each connector receiving at least one distinct source video stream;
at least one processing unit in the housing for:
scaling the source video streams received by the plurality of connectors into a corresponding plurality of scaled video streams;
mosaicing the plurality of scaled video streams into a mosaiced video stream; and
outputting the mosaiced video stream via one of the plurality of connectors.
2. The system of claim 1 , wherein each source video stream transports a plurality of source video frames, each corresponding scaled video stream transports a plurality of scaled video frames, and the scaling comprises applying a scaling ratio to the plurality of source video frames to generate the corresponding plurality of scaled video frames.
3. The system of claim 1 , wherein the scaling of the plurality of source video streams into a corresponding plurality of scaled video streams consists of a temporal scaling, and each one of the plurality of scaled video streams has a frame rate lower than the corresponding source video stream.
4. The system of claim 1 , wherein mosaicing the plurality of scaled video streams into the mosaiced video stream comprises combining scaled video frames respectively transported by the scaled video streams at respective given positions within mosaiced video frames transported by the mosaiced video stream.
5. The system of claim 1 , wherein the at least one transceiving unit receives a control message from a third-party computing device, the control message comprising at least one of the following: a scaling ratio associated to each one of the source video streams received by the transceiving unit, and a position associated to each one of the scaled video streams generated by the transceiving unit.
6. The system of claim 1 , wherein one of the plurality of connectors is a rear connector located on a back panel of the at least one transceiving unit, the mosaiced video streams being outputted via the rear connector.