Digital Packet Video Link is a new video standard from VESA . Unlike previous technologies, and in order to save bandwidth, only portions of the screen that are modified are sent via this link. DPLV also introduces metadata video attributes support.
The DPVL standard is aimed to mobile and wireless hardware.
It is the video transcoder's aim to convey an input compressed video stream to the output link without the need of fully decoding and re-encoding.
However, few or more network links, to which individual users are connected, might not be able to support any of the high performance video streams due to congestion reasons or network constraints, so that an interface between two ends is needed for an achievable throughput.
The aim of this project is to attain all three types of video transcoding algorithms and combine them in a way that an ultimate interconnection is achieved among diverse types of communication networks, and multimedia terminals.
The packaged digitalvideo data signals comprise a source address code for identifying an address origin of the digitalvideo data signal, a destination address code identifying a final address destination of the digitalvideo data signal, a priority code identifying a priority of the transmission, and digitalvideo data.
The communication link 101 between the main processor 100 and the primary hub 104 is preferably two twisted pairs of wires, with one pair being used for transmissions from the main processor to the primary hub and the other pair used to transmit from the primary hub to the main processor.
The three spare bits of the fourth byte in the control packet are used in the data packet as the upper three bits of an 11 bit word used to indicate the length of the data being transmitted.
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