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Distributed real-time transcoding method and system

A distributed real-time, transcoding technology, applied in selective content distribution, TV, electrical components, etc., can solve problems such as low transcoding efficiency

Inactive Publication Date: 2011-07-13
LETV CLOUD COMPUTING CO LTD
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  • Claims
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Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a distributed real-time transcoding method and system, which can solve the problem of low transcoding efficiency

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  • Distributed real-time transcoding method and system
  • Distributed real-time transcoding method and system

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Embodiment Construction

[0014] The transcoding described in the present invention includes file format transcoding and encoding format transcoding. The so-called file format transcoding refers to the conversion of one file format to another file format, while encoding format transcoding refers to the conversion of one encoding format to another encoding format. For example: flv to mp4, file format transcoding is to extract frame data from the flv format file to fill in the mp4 format file, and the data encoding format remains unchanged. The conversion of the encoding format changes the encoding method of the video file.

[0015] In the distributed real-time transcoding method, firstly, grid computing is used to logically slice the files to be converted, and the entire file to be converted is divided into individual conversion tasks and stored in the task database. Secondly, the transcoding in the grid The server obtains the transcoding task in real time according to its own ability. After the conver...

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Abstract

The invention provides a distributed real-time transcoding method and a distributed real-time transcoding system. Video source files are logically partitioned by a source file server, and partitions and partition information are transmitted to a task database. A transcoding server cluster acquires source files to be transcoded in real time and performs transcoding, and an object file server receives transcoded data sent by the transcoding server cluster in real time and merges the files into an object file. The expandability, the fault tolerance and the maintainability of the system are improved to a large extent, and the transcoding time of a file coding format is greatly shortened.

Description

technical field [0001] The invention relates to a distributed real-time transcoding method and system, belonging to the field of computer video processing. Background technique [0002] Video transcoding makes different video data formats compatible with each other, which has high practical value in video applications. Video transcoding refers to the conversion of video data from one format to another, including encoding standards, bit rates, frame rates, and spatial resolutions. In a broad sense, all operations on video streams can be regarded as video transcoding, such as embedding icons, watermark information, and data adding error suppression features in video streams. With the rapid development of multimedia and network technologies, multimedia services have become more and more popular. In these applications, it is often necessary to adjust the code rate or resolution of the video encoding stream to meet the needs of heterogeneous networks and multi-terminal environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N19/40H04N21/233H04N21/2343H04N21/2368H04N21/242H04N21/2662H04N21/434
Inventor 杨永强李茗祝晓光
Owner LETV CLOUD COMPUTING CO LTD
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