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Video transcoding method based on image group in cloud environment

A video transcoding and image group technology, applied in the field of video processing, can solve the problems of high time overhead, unsupported scalability, low efficiency of video transcoding of large files, etc., to achieve strong scalability and security, and improve efficiency

Inactive Publication Date: 2012-06-20
TSINGHUA UNIV
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Problems solved by technology

[0003] However, with the sharp increase in the amount of single video data and the increasing popularity of video applications such as streaming media, the time overhead of traditional video processing methods is increasing, which can no longer meet people's needs
In order to play video quickly and effectively, it is necessary to transcode the video into a video with the same resolution as the video device, which makes the video processing more complex and changeable, and the disadvantages of traditional video processing methods are more prominent
Therefore, the traditional video transcoding method is very inefficient for video transcoding of large files, and does not support scalability

Method used

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  • Video transcoding method based on image group in cloud environment
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  • Video transcoding method based on image group in cloud environment

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Embodiment Construction

[0015] The video transcoding method based on the image group in the cloud environment proposed by the present invention, its flow chart is as follows figure 1 shown, including the following steps:

[0016] (1) Obtain the image group from the video file, and obtain the start position and end position information of the image group in the video.

[0017] In this embodiment, it is only necessary to obtain the start position and end position information of the image group from the video, and it is not necessary to obtain the start position and end position information of other grammatical structures in the video.

[0018] (2) According to the start position and end position information of the above-mentioned image group in the video, the video is divided into n sections of video clips according to the group number of the image group, wherein n is any integer greater than or equal to 1, for each video The segment sets a video name, and the name includes a video file name, a set wi...

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Abstract

The invention relates to a video transcoding method based on an image group in a cloud environment, which belongs to the technical field of video processing. The method comprises the following steps: analyzing a video file to obtain image group information of the video; evenly splitting the video into a plurality of video segments on the basis of the number of image groups according to the image group information; dispatching the video segments into a compute node in a cluster by utilizing a distributed programming model and transcoding; merging the transcoded video segments; and outputting the transcoded video file. The method has the advantages that: the video is divided into a plurality of segments which are transcoded on different computers simultaneously through a cloud computing principle, the transcoding efficiency is improved, and the cloud computing transcoding has very strong expansibility.

Description

technical field [0001] The invention relates to a video transcoding method based on an image group in a cloud environment, and belongs to the technical field of video processing. Background technique [0002] With the continuous development and evolution of the Internet and multimedia technology, multimedia applications are becoming more and more extensive. Different applications have different requirements for video codecs, video data storage formats, and network transmission equipment. Coding standards formulated for specific fields are also different, and multimedia platforms have different requirements for video formats. In order to enable seamless connection and transparent exchange between heterogeneous networks, between different access devices, between different multimedia data formats, and between and within different media standards, video transcoding technology is particularly important. [0003] However, with the sharp increase in the amount of single video data...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N21/2343H04N19/40
Inventor 王建民王朝坤岳永胜刘璋
Owner TSINGHUA UNIV
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