Network video playback method and network video playback device

A network video and playback method technology, applied in the field of audio and video, can solve the problems of uneven transition of pictures, decoding failure, waste of time, etc., and achieve the effect of smooth transition of pictures, reducing time loss and good display effect

Inactive Publication Date: 2011-12-21
董友球 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of code stream selection is basically through manual selection, and manual operation itself will waste a lot of time
Since the general video will adopt inter-frame compression technology, when playing the video, it must start from the key frame to decode normally, otherwise it may fail to decode and cause blurred screen or frame loss
When switching manually, if the data is not sent from the key frame when switching to the new code stream, the picture may not transition smoothly due to the above reasons

Method used

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  • Network video playback method and network video playback device
  • Network video playback method and network video playback device
  • Network video playback method and network video playback device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 Shown, a kind of network video playing method of the present invention specifically comprises the following steps:

[0028] S101. For each video source, preset multiple code streams;

[0029] The video source mentioned in the server 10 refers to a video signal source, and one video source can be a single program or a channel. Each video source can preset multiple optional code streams, and the preset mode can be: concurrently start multi-channel encoding for each video source, after receiving the collected original video stream, convert it according to user needs Encode into multiple code streams.

[0030] The data of each frame of video in the preset code stream contains display time stamp information, and the time stamp difference between video frames of the same content in different code streams is less than 1 second.

[0031] Generally speaking, the interval between two consecutive frames of video is forty milliseconds. Such as figure 2 As sh...

Embodiment 2

[0052] Such as Figure 4 As shown, a method for playing network video in the present invention, S103 in Embodiment 1 can also be the following steps:

[0053] S103' network video playback server compares the buffer speed video Vb of the client with the buffer speed reference value, and decides whether to switch the video code stream;

[0054] The network video playback server obtains the buffering speed Vb of the client at regular intervals during the playback process. The method of obtaining can be that the client reports the time length of the buffered video to the server at intervals. It reports the time interval to calculate the average buffering speed; the client can also calculate the buffered video time per unit time to obtain the average buffering speed, and then report it to the server.

[0055] The network video playback server performs the following steps according to the speed at which the client buffers the video:

[0056] S1031'. When the buffered video speed V...

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Abstract

The present invention relates to a network video playing method, which comprises the following steps: preset multiple code streams for each video source; a user requests to play a video, and selects a video code stream; judges whether it is necessary to switch the video code stream, and if so, then Switch the video stream according to the timestamp. In addition, the invention also provides a network video playing device. Adopting the present invention can ensure fluency and provide users with high-quality video images as much as possible in the case of unstable network, so as to achieve better display effect; realize automatic video switching to reduce unnecessary time loss caused by manual operation ; The time stamp is also used to switch the corresponding video, so that the transition of the picture is smooth and natural.

Description

technical field [0001] The present invention relates to the technical field of audio and video, in particular to a method and device for playing network video. Background technique [0002] With the development of Internet technology and today's ever-increasing network bandwidth, online video has attracted a large number of users with its convenient access experience, diverse video sources, and real-time update speed, making online video an indispensable part of users' online life. missing important component. [0003] At present, the network videos provided by most web servers are played with a certain bit rate. The code stream (Data Rate) refers to the data flow used by the video file per unit time, also called the code rate, which is the most important part in the picture quality control in video coding. Under the same resolution, the larger the code stream of the video file, the smaller the compression ratio and the higher the picture quality. If the network bandwidth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/238H04N21/433H04N21/8547
Inventor 董友球曾昭兴郭景贵
Owner 董友球
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