Distributed multi-format digital video transcoding construction design method

A distributed, multi-format technology, applied in the fields of digital video signal modification, television, electrical components, etc., can solve the problems of low computational complexity, poor video quality, short transcoding time, etc., to improve the transcoding rate and expand the application. effects of the environment
CN101459848AInactive Publication Date: 2009-06-17XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2009-06-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for designing a distributed type multiformat video transcoding structure, which comprises the following steps: rapidly dividing a video in a seamless mode after de-multiplexing an original video file, transmitting video segments and audio files to each of transcoding PCs for carrying out rapid multiformat transcoding through a dynamic scheduler process, the decoding only needs once after inputting the video with a certain format, then various formats of code screams can be output, and the code rate control can be carried out to the output code stream well, finally collecting the video segments after the transcoding to carry out a seamless splitting and multiplexing with the audio files after the transcoding. The invention improves the transcoding rate of a pixel area cascade decoder, which increases the quality of the video after the transcoding.
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Description

technical field

[0001] The invention belongs to the field of distributed video codec and transcoding. In particular, it relates to a distributed cascade full-decoding and full-coding multi-format digital video transcoding structure design method. Background technique

[0002] Digital video transcoding technology is the conversion from one video encoding stream to another encoding stream. This conversion includes many operations, such as changing the bit rate, frame rate, resolution and encoding format of the video. The main purpose of transcoding is to convert the input compressed video stream into a video code stream that meets the diversity requirements of the receiving end.

[0003] There are many compression standards for digital video, including MPEG and H.26x series, etc. The need for conversion between different video formats has prompted the development of video transcoding research. In the field of digital TV broadcasting and IPTV systems, in order to enable users...

Claims

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