Network streaming media server and low-bandwidth high-quality solution thereof

A media server and network bandwidth technology, applied in the field of encoding and decoding, can solve problems such as unsmooth pictures, achieve the effect of improving quality, ensuring fluency, and ensuring the decoding process

Inactive Publication Date: 2010-12-08
CHINA DIGITAL VIDEO BEIJING
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  • Abstract
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Problems solved by technology

[0012] The technical problem to be solved by the present invention is to provide a network streaming media server and its low-bandwidth high-quality solution to solve the problem of unsmooth pictures under low-bandwidth

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  • Network streaming media server and low-bandwidth high-quality solution thereof
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  • Network streaming media server and low-bandwidth high-quality solution thereof

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Embodiment Construction

[0040] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] Analyzing the existing technology, the network streaming video server adopts the H.264 or MPEG-4 compression algorithm. When the network bandwidth is too low or the network bandwidth is unclear and unstable, it cannot be decoded due to the loss of key frames, resulting in not fluent.

[0042] The reason for the above problems is not because the H.264 compression algorithm is inferior to MJPEG or MPEG-2, but because it is not optimized for such a network environment.

[0043] Therefore, the present invention proposes a kind of optimized solution, and its solution idea is: increase the probability of the key frame, make the decoder receive more key frames in a certain period of time, like this, even if there is frame dropping...

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Abstract

The invention provides a network streaming media server and a low-bandwidth high-quality solution thereof for solving the problem that pictures are unsmooth under low bandwidth. The low-bandwidth high-quality method comprises the following steps of: detecting the network bandwidth in real time; adjusting the probability of occurrence of key frames in real time in the encoding process according to the network bandwidth; and/or adjusting the transmitting probability of the key frames in the transmission process in real time. Even if the key frame is lost, the next key frame can rapidly make up the gap. Therefore, the decoding cannot be influenced, the pictures for video display cannot be stagnated for a long time, the browsing smoothness for a user is guaranteed, and the quality of video images is improved.

Description

technical field [0001] The invention relates to the technical field of encoding and decoding, in particular to a network streaming media server and a low-bandwidth high-quality solution method thereof. Background technique [0002] Among streaming media data compression standards, MPEG series standards are mostly used. The MPEG series compression algorithm has developed from the early MPEG-1 and MPEG-2 to the current MPEG-4 and the latest H.264, and its core compression principle has not changed. [0003] A network streaming video server using H.264 or MPEG-4 compression algorithm. When it is placed on the Internet, under the current network conditions, the image picture is very not smooth, and the picture pauses and lags are very strong. The screen may only move for a few seconds, or the screen may not move for a long time, which cannot meet the quality requirements for normal viewing and playback. [0004] This phenomenon is mainly caused by two types of problems: [00...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/50H04L29/08H04N19/114H04N19/146
Inventor 李军何宇飞温晓瑶夏永宏
Owner CHINA DIGITAL VIDEO BEIJING
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