Patent ID: 8311128

Claim:
A method of processing a coded data stream of a current image on a receiving device, said data stream being organized into packets, the method comprising: a step of detecting a lost packet; a step of estimating, prior to the decoding of said current image, an importance criterion of said lost packet, said importance criterion being determined from at least one decoded preceding image; a step of requesting retransmission of said lost packet depending on said estimated importance criterion, wherein the step of estimating said importance criterion comprises a step of estimating an area of a current image part corresponding to the data contained in said lost packet; and a step of dividing the current image into blocks, wherein the step of estimating the area comprises the following sub-steps: estimating a number of items of data contained in detected lost packets; estimating a complexity of the blocks of said current image; and estimating a number of current image blocks corresponding to each packet from the estimated number of items of data contained in the detected lost packets, from a number of items of data contained in received packets, and from the estimated complexity of the blocks of the current image.