| 摘要 |
FIELD: physics, video.SUBSTANCE: invention relates to video streaming, particularly to a method/device for switching from a source encoded video stream to a destination encoded video stream. Disclosed is a method of switching from a source encoded video stream to a destination encoded video stream and a corresponding device, a video platform and a system. The method includes using an intermediate switching stream which is dependent on the destination stream, the switching stream including a plurality of successive GOP sequences, each GOP sequence including an initial I-frame and at least one successive P-frame. The method also includes switching from the source video stream to the I-frame of a GOP sequence of the switching stream and then switching from the switching stream to the destination stream such that the subsequent frames of the destination stream can be decoded using the accumulated reference level of the GOP sequence of the switching stream.EFFECT: low probability of randomly switching between two arbitrary (similar or dissimilar) encoded video streams within a short time interval at any (low or high) bit rate without disrupting the frame rate or introducing noticeable long-term drift errors.20 cl, 8 dwg |
