Abstract: This application provides a method, device, and system for determining a bandwidth for service flow transmission. The method includes: A first device obtains a first traffic sampling set of a service flow, where the first traffic sampling set includes one or more pieces of traffic sampling information. The first device obtains a service level parameter corresponding to the service flow and a reliability probability of meeting the service level parameter. The first device determines, based on the first traffic sampling set, the service level parameter, and the reliability probability, a bandwidth for transmitting the service flow.

Abstract: The present invention relates to a method and device for providing encoded video data from a video signal. The method comprises the steps of providing intra-coded picture data and predictive-coded picture data, based on the video signal, and generating a first and a second frame of said encoded video data. In the generating step of the intra-coded picture data is arranged in first and second slices in the first and second frames, respectively. The slices are arranged in an overlapping manner in the frames, advantageously with a vertical overlap my which is equal to or greater than a maximum absolute length of a vertical motion vector. The invention also relates to a corresponding decoding method and device, as well as a corresponding video encoder, a video decoder and a video codec. The invention may be implemented and used in accordance with standard specifications such as H.264.