Video transmission method, device, equipment and storage medium

Abstract

The invention discloses a video transmission method, device, equipment and computer readable storage medium. The method comprises the following steps: when detecting that the current uplink code rateis updated and a subscribed video stream with the first resolution is not sent to subscription equipment at the previous moment, acquiring video subscription information of the subscription equipment;acquiring the lowest code rate corresponding to the first resolution and a code rate threshold; if the current uplink code rate is less than the sum of the lowest code rate corresponding to the firstresolution and the code rate threshold, and the video stream comprises a second resolution which is unsubscribed and lower than the first resolution, acquiring the lowest code rate corresponding to the second resolution and the code rate threshold; if the current uplink code rate is greater than or equal to the sum of the lowest code rate corresponding to the second resolution and the code rate threshold, sending the video stream corresponding to the second resolution to the subscription equipment. The control on the switchover between the resolution levels is realized, the frequent switchingof the resolution level caused by the influence of the uplink code rate is avoided, and the comprehensive utilization of the uplink bandwidth is realized.

Description

technical field [0001] The present invention relates to the technical field of communication transmission, in particular to a video transmission method, device, equipment and computer-readable storage medium. Background technique [0002] In the publisher / subscriber model based on events (such as video), the needs of subscribers are also very different. Taking video subscription as an example, different subscribers want different content. For example, terminals with different screen sizes expect to get The resolution of the video will be different, so the video source as the publisher often needs to support sending multiple video streams with the same or different resolutions when multicasting. The most common ones are sending 180p, 360p, 720p and 1080p, etc. For video streams at different levels of resolution, the specific video stream information to be sent depends on the subscription status of the subscriber. [0003] After receiving the subscription information from the...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that: when the network fluctuates greatly, if the bit rate allocated to a certain level fluctuates just above and below the lowest bit rate, the source end will always send the video stream and Switching between video streams that do not send at this level, since the key frame corresponding to this level needs to be resent every time it is never sent to start sending, thus occupying more upstream bandwidth, not only causing waste of resources, frequent video Resolution switching also affects the user's viewing experience

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