Patent ID: 7643422
Filing Date: 2010-01-05
Classification: H04L,H04N

Abstract:
1. A computer implemented method for modifying a media stream, said method comprising: receiving a request at said computer to modify a media stream from a current display rate to a desired display rate; and dynamically processing at said computer said media stream to create a modified media stream which is compliant with a pre-determined frame-rate limitation and with a pre-determined bit-rate limitation, wherein said dynamically processing said media stream further comprises: determining a desired frame-rate in response to receiving said request; determining a desired frame-time for each of a plurality of data frames in accordance with said desired frame-rate; determining a corresponding output presentation time for each of said plurality of data frames; and modifying a first of said plurality of data frames if the output presentation time for said first data frame is at least equal to the desired frame-time for a second data frame immediately succeeding said first data frame unless said second data frame comprises an intra-coded frame (I-frame).