Streaming media encoding and decoding method and system for realizing low-delay ultra-high-definition live broadcast

Abstract

The invention discloses a streaming media encoding and decoding method for realizing low-delay ultra-high-definition live broadcast. The method comprises the following steps: S1, preprocessing of a streaming media file; S2, encoding processing; S3, streaming media data transmission; S4, decoding processing; and S5, decoding buffer processing. According to the invention, when the streaming media client decodes the received streaming media file, decoding buffer is realized, the influence of delay jitter is compensated, decoded data packets are synthesized, the correct sequence of the data packets is ensured, streaming media data is continuously output, the playing fluency is improved, the played data stream is automatically deleted and cleaned, the cache space is reused to cache the subsequent unplayed content, the system response efficiency is improved, the video and audio data is preprocessed at the same time, the video and audio media files of various formats are converted into the streaming media files of MWV and RW formats, the MWV and RW formats are converted into the streaming media files of different formats, and head-tail, overlapping and mosaic editing processing is carriedout.

Description

technical field [0001] The present invention relates to the technical field of coding and decoding, and in particular to a streaming media coding and decoding method and system for realizing low-latency ultra-high-definition live broadcast. Background technique [0002] Streaming media refers to a technology and process that compresses a series of media data, sends the data in segments on the Internet, and instantly transmits video and audio on the Internet for viewing. This technology enables data packets to be sent like flowing water; if this technology is not used , it is necessary to download the entire media file before use, and streaming can transmit live audio and video or pre-stored videos on the server. When viewers watch these audio and video files, the audio and video data will be played immediately by a specific software player [0003] Streaming media codec is used to encode, transmit, decode, and play streaming media data. Currently, traditional video codec me...

AI Technical Summary

Problems solved by technology

[0003] Streaming media codec is used to encode, transmit, decode, and play streaming media data. At present, traditional video codec methods are mostly used for streaming media codec processing, but the encoding process lacks preprocessing measures for video and audio data. At the same time, due to data There is a delay in the time from the packet to the client. During decoding and playback, due to delay and jitter affecting the order of the data packets, the streaming media data cannot be continuously output, resulting in a pause in playback

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