Nxp USA, Inc.

Freescale Semiconductor,inc.

Zening Wang

Peng Zhou

Hongzhang Yang

Xiaowen Liu

Bing Song

A display system for displaying a media stream based on a given access point includes a decoder for decoding frames of the media stream, and an evaluation unit for scoring macro blocks (MBs) of a current frame. A score of an intra-MB is defined as a predetermined value, and a score of an inter-MB is generated based on scores of MBs in previously decoded frames. A controller signals a display to skip the current frame or start to display the media stream from a qualified frame identified using the scores of the MBs of at least the current frame.

Media display system that evaluates and scores macro-blocks of media stream

An encoding system for converting video data to a media stream based on a given intra-refresh rate includes an encoder for encoding the video data to frames based on the given intra-refresh rate, a decoder for reconstructing the encoded frames, and an evaluation unit for scoring macro blocks (MBs) of a current frame being decoded. A score of an intra-MB is defined as a predetermined value, and a score of an inter-MB is generated based on the scores of MBs of previous frames. A controller determines an actual refresh period based on a qualified frame identified based on the scores of the MBs of at least the current frame, and adjusts the given intra-refresh rate based on the actual refresh period.

Video encoder with adjustable intra-refresh rate

A sink apparatus for receiving and playing back multimedia data receives data frames and discards data frames from its processing pipeline in order to reduce latency if it is determined that an amount of media data buffered in one or more portions of the processing pipeline during a fixed playback time period is above a threshold value. The threshold value and therefore the extent to which data frames are discarded can be varied in order to balance latency and quality of the displayed multimedia data.

Growing community of inventors

Nanjing, China

Zening Wang