A method and system for improving streaming media playback quality in embedded terminals

Abstract

The invention discloses a method used for an embedded terminal and capable of improving the playback quality of streaming media and a system used for the embedded terminal and capable of improving the playback quality of the streaming media. The method used for the embedded terminal and capable of improving the playback quality of the streaming media is used for services of online download and playback of embedded terminal equipment. By means of dynamic adjustment of the download rate and the playback rate, the user experience of a download type playback service can be improved. The method used for the embedded terminal and capable of improving the playback quality of the streaming media comprises the following steps: dividing time into periods, and collecting the information of download rate, the quantity of video buffer memory and the playback rate when each period starts. The method used for the embedded terminal and capable of improving the playback quality of the streaming media further comprises the following steps: forecasting the quantity of the video download in the period, namely, estimating the quantity of the download in the period according to historical data of the download rate; and computing decision-making process, namely, calculating the optimal playback rate and the upper limit of the download rate of the period according to the forecasted quantity of the download, the current quantity of the buffer memory and the current playback rate. The method used for the embedded terminal and capable of improving the playback quality of streaming media and the system used for the embedded terminal and capable of improving the playback quality of the streaming media have the advantages of being capable of better utilizing the time correlation of the download rate, finely tuning the playback effect, ensuring that the higher the code rate, the closer the download rate to the playback rate, thus ensuring the smooth playback of high definition videos.

Description

technical field [0001] The invention relates to an embedded terminal online streaming media service, in particular to a method and system for an embedded terminal to improve streaming media playback quality. Background technique [0002] In recent years, the performance of embedded terminals such as set-top boxes and in-vehicle entertainment equipment has been greatly improved, but at the same time, users also expect to enjoy higher quality services (such as high-definition video, etc.). Resource constraints are still an important bottleneck for embedded devices, and how to provide better services with limited resources is the primary concern of every embedded device manufacturer. At the same time, network services have penetrated into every corner of the world. Among them, the video business is especially serious. The famous network equipment manufacturer Cisco released a report predicting that 90% of consumer IP traffic will come from network video in 2013. Streaming med...

AI Technical Summary

Problems solved by technology

[0005] 1. Due to the fluctuation of the download rate, it is easy to cause buffer overflow and overflow, resulting in playback freeze or frame skipping

2. In the process of downloading and playing, the limitation of embedded terminal device resources is not considered, and there is no mechanism for rationally allocating resources occupied by downloading and playing

Especially for high-definition videos, excessive download rates can easily cause playback stuttering and other unsmooth phenomena

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