DMB video pushing method based on multi-description coding

Abstract

The invention relates to a DMB video pushing method based on multi-description coding, and belongs to the field of DMB video pushing. The method comprises the following steps: S1, decomposing a sourcevideo into a description of a low-quality video and a description of a high-quality video, and carrying out the compression and packaging; S2, pushing a video file processed in step S1 to a receivingend in a high-quality and low-quality video alternate pushing mode; and S3, verifying and decoding two sub-signals, pushed by a transmitting end, through the receiving end, and then reconstructing acorresponding video for playing. The source video is decomposed into a high-resolution description and a low-resolution description, and the two videos are pushed in a segmented and crossed manner through the DMB system, so the receiving end can play a video which is rough in image quality and can be accepted in a short time, and the video is synthesized and replaced with the corresponding low-quality segment after the high-quality video segment is received, and a long blank period of the receiving end due to waiting for receiving the high-definition video with a large memory is shortened.

Description

technical field [0001] The invention belongs to the field of DMB video push, and relates to a DMB video push method based on multi-description coding. Background technique [0002] DAB (Digital Audio Broadcast, Digital Audio Broadcasting) and its upgraded DAB+ and DMB standards are a new generation of digital broadcasting systems that replace traditional analog broadcasting such as FM and AM. . At present, 36 countries and regions in the world have adopted the DAB series standards, including most countries in Europe such as the United Kingdom, France, Germany, Italy, Norway, Sweden, etc., South Korea, Indonesia, Singapore, Malaysia, etc. in Asia, as well as South Africa and Australia. China has also introduced DAB technology and officially promulgated the national standard in 2006. At present, there are nearly 2,000 DAB commercial radio stations around the world, covering more than 400 million people. [0003] In recent years, a large number of new applications have been ...

AI Technical Summary

Problems solved by technology

[0007] In view of this, the object of the present invention is to provide a DMB video push method based on multiple description coding, which uses multiple description coding technology to improve the instability and long delay of the low bit rate channel push video of the DMB system, The purpose is to make the receiving end play a lower-quality but acceptable video in a short period of time, so as to reduce the video buffering time of the receiving end and improve user experience

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