Patent ID: 9407909
Filing Date: 2016-08-02
CPC Classification: H04N

Claim Text:
1. A method for rate controlling in video coding of sequences of pictures including a series of Inter frames separated by Intra frames, the method comprising: using at least one hardware processor for performing: (a) for an Inter frame in the series, determining a maximum buffer level of a transmission buffer as a function of a position of the Inter frame relative to a previous Intra frame and an upcoming Intra frame in the sequence of pictures, comprising determining the maximum buffer level as follows: (b) determining a target frame size measured in bits for the Inter frame leading to a transmission buffer level not exceeding the maximum buffer level; (c) encoding the Inter frame into an encoded frame according to the target frame size, the encoded frame having an encoded frame size; (d) determining the transmission buffer level in response to the encoded frame; and (e) dropping the encoded frame if it would cause the maximum buffer level to be exceeded.