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Method used for embedded terminal and capable of improving playback quality of streaming media and system used for embedded terminal and capable of improving playback quality of streaming media

An embedded terminal, playback quality technology, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve problems such as not considering the limitation of embedded terminal device resources, playback freeze, download rate fluctuations, etc., to achieve improvement The effect of playing the effect

Active Publication Date: 2013-05-15
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Method used for embedded terminal and capable of improving playback quality of streaming media and system used for embedded terminal and capable of improving playback quality of streaming media
  • Method used for embedded terminal and capable of improving playback quality of streaming media and system used for embedded terminal and capable of improving playback quality of streaming media

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Embodiment

[0036] Such as figure 1 As shown, the server and the set-top box terminal are connected through a WAN. The terminal clicks the link through the web page, calls the local JS interface, and transmits the video information parameters to the player. The information includes but is not limited to movie name, duration, file size, server address. After the terminal obtains the information, it starts the local download, detects the buffering and download rate, and starts playing in due course.

[0037] In the implementation of the present invention, operations such as predictive control execution are realized by adding a control decision-making module, such as figure 2 shown. Specific steps are as follows:

[0038] 101. Divide the cycle, here set to a fixed length of 5 seconds;

[0039] 102. At the beginning of the cycle, detect the download rate, the number of video caches, and the playback rate, and store them in the history;

[0040] 103. Predict the number of possible downl...

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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...

Claims

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Application Information

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IPC IPC(8): H04N21/647
Inventor 孙鹏张辉帅朱小勇邓峰
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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