Media playing method and device

Abstract

The invention relates to a media playing method and device. The method comprises the following steps: extracting a URL (Uniform Resource Locator) of a video in a webpage when a terminal browser loads an HLS (Http Live Streaming) media webpage; finding whether a corresponding media cache file exists locally in a terminal or not according to the URL of the video; if the corresponding media cache file does not exist locally in the terminal, creating a download task corresponding to the URL, and pre-caching TS fragments of a predetermined segment; when a playing instruction of a user for a media file in the HLS media webpage is received, playing the pre-cached TS fragments, and judging whether the downloading of the media file is finished or not; and when the downloading of the media file is not finished; finding TS fragments which are not downloaded in the media file, downloading the TS fragments in a multithread way, and continuously playing the downloaded TS fragments of the media file in a downloading process. Through adoption of the media playing method and device, multiplexing of caching and downloading is performed, so that cache management of the video is realized; the play waiting time of the user is shortened; traffic consumption is lowered; and the user play experience is improved.

Description

technical field [0001] The present invention relates to the technical field of media playing, in particular to a media playing method and device. Background technique [0002] At present, when a user uses a mobile client to watch a video of a video website, most of the video website will distribute the video stream based on the HLS (HTTP Live Streaming, real-time streaming) protocol. [0003] The biggest advantages of the HLS protocol are: easy deployment, easy distribution, relatively low performance requirements on the server, and support for adaptive bit rate playback. [0004] However, the HLS protocol has a big disadvantage: HLS requires the video stream to be divided into a large number of small TS video files. As the viewing time increases, a large number of fragmented files will be generated in the mobile phone, and the storage I / O requirements are quite demanding. , caching or managing these small slice files is very complicated, and a little careless handling will...

AI Technical Summary

Problems solved by technology

[0004] However, the HLS protocol has a big disadvantage: HLS requires the video stream to be divided into a large number of small TS video files. As the viewing time increases, a large number of fragmented files will be generated in the mobile phone, and the storage I / O requirements are quite demanding. , caching or managing these small slice files is very complicated, and a little careless handling will lead to accidental deletion of fragmented files, failure to find them, affecting request speed, etc., which in turn will affect the user's viewing experience

[0006] The existing technical solution will cause three problems: (1) When the user performs a seek operation in the direction of the start position of the video, the player must re-download the TS segment at the position where the seek is located, and the segment has been downloaded and played before being released, resulting in It reduces the waste of traffic and increases the waiting time for the user to play after seeking; (2) When the user performs a seek operation towards the end of the video, the player only downloads one more TS segment backward from the previous playback position, while the user's seek The position is far away, and the TS segment where the seek position is located has not been downloaded, and the user has to wait for the player to download the current TS before playing the video, which reduces the user's playback experience; When the video is downloaded to the mobile phone, because the player does not consider playing the cached TS segment and multiplexing it with the cache in the download task, it can only download the video again, resulting in a waste of traffic and correspondingly reducing the download speed

[0007] Therefore, under the existing technology, the video cache management of HLS is too simple and cannot meet the user's operation needs, which will lead to unnecessary waste of user traffic, time and device power, and affect user experience.

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