Code rate switching method, client and computer readable storage medium

Abstract

The embodiment of the invention relates to the technical field of multimedia, and discloses a code rate switching method, a client and a computer readable storage medium. The code rate switching method comprises the following steps: acquiring label information of each key frame in a currently played video; if a preset triggering operation is detected, determining a target key frame according to the playing data of the current playing buffer area and the label information of each key frame; and performing code rate switching by taking the target key frame as a switching starting position, so that the effect of rapid and smooth switching can be realized, the probability and duration of jamming in the switching process are reduced, and the downloading flow required in the switching process issaved.

Description

technical field [0001] The embodiment of the present invention relates to the field of multimedia technology, and in particular to a code rate switching method, a client and a computer-readable storage medium. Background technique [0002] In the multimedia field, in order to meet the needs of users with different bandwidths, major mainstream clients divide video definition services into several levels, such as SD, HD, and UHD. In the process of watching videos, users can subjectively switch the bit rate between video contents with different resolutions according to their own network bandwidth changes, so as to enjoy a smooth viewing experience. At the same time, when the user's network bandwidth is sufficient, the client can also switch bit rates in an adaptive manner to provide users with higher-quality video services. In order to prevent blurred screens, the code rate switching needs to use key frames as the switching point. The methods for realizing code rate switching ...

AI Technical Summary

Problems solved by technology

[0003] However, the inventors have found that there are at least the following problems in the related art: in the above-mentioned first method, when there is no key frame in the playback buffer, it is necessary to download and wait until there is a key frame in the playback buffer, which may cause a long time freeze, and require more download traffic

In the above second method, if it is determined that the code rate switching needs to be performed on the nth TS segment, it needs to wait for the n-1th TS segment to be played, that is, it needs to wait for the download opportunity, which makes the switching time longer

And if the actual first frame of the TS clip is a non-key frame, there will be a blurred screen phenomenon

To sum up, the code rate switching schemes in related technologies all have unavoidable defects in rapidity

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