| 摘要 |
A method is provided for determining a quality value (Q) of a video stream (S), comprising the steps of: identifying lost data packets (3, 4, 7, 8, 9) of the video stream (S); identifying at least two intra coded frames (11, 12, 13, 14) of the video stream (S); determining intra coded frames (11, 12, 14) having a maintained image quality, based on estimating (45) if a lost data packet (9) is associated with an intra coded frame (13); estimating a distance (D1; D2; D3; D4; D5) between each one of the lost data packets (3; 4; 7; 8; 9) and a next respective, subsequent intra coded frame (12; 14) having a maintained image quality; and generating the quality value (Q), based on the distances (D1, D2, D3, D4, D5). A system and a computer readable medium are also described. |
