Ultralow-delay video data transmission method and device
A technology of video data transmission and video data, applied in the field of wireless communication, to avoid video freeze and improve fluency
Pending Publication Date: 2022-05-13
CHINA MOBILE SHANGHAI ICT CO LTD +2
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Problems solved by technology
[0004] Embodiments of the present invention provide a method and device for ultra-low-latency video data transmission, which can solve the problem of video freeze caused when the instantaneous bandwidth of the terminal is insufficient in related technologies
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Embodiment Construction
[0077] The characteristics and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only configured to explain the present invention, not to limit the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.
[0078] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation...
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The invention discloses an ultra-low time delay video data transmission method and device. The method comprises the following steps: acquiring a transmission time interval for transmitting two adjacent frames of video data to a terminal and the video data under the condition that video data transmission by the terminal is not smooth; the video data comprises a first I frame; dividing the first I frame into a plurality of first sub-I frames according to the transmission time interval and a preset time interval threshold; and transmitting the plurality of first sub-I frames to the terminal according to the arrangement sequence of the plurality of first sub-I frames in the first I frame, so that the terminal decodes the plurality of first sub-I frames to obtain the video data, the size of the video data transmitted in the bandwidth can be reduced, and the transmission efficiency of the video data is improved. The video jamming caused by insufficient instantaneous bandwidth of the terminal is avoided, so that the fluency of the video data in the transmission process is improved.
Description
technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to an ultra-low-latency video data transmission method and device. Background technique [0002] With the rapid development of information technology, more and more users watch videos online through terminals such as mobile phones and tablet computers. [0003] At present, the amount of video data is large, and in some scenarios, such as live broadcast, the real-time performance of video transmission is high. In the process of ultra-low-latency video data transmission, large average bandwidth and instantaneous bandwidth are required to avoid Freezing during video playback. The ultra-low-latency video data transmission method in the related art can reduce the video freeze problem caused by the average bandwidth fluctuation, but cannot avoid the video freeze problem caused when the instantaneous bandwidth of the terminal is insufficient. Contents of the i...
Claims
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IPC IPC(8): H04N21/2187H04N21/234H04N21/44H04N21/845H04N21/8547H04L65/60H04L65/80
CPCH04N21/2187H04N21/23418H04N21/44008H04N21/8547H04N21/8455H04N21/8456H04L65/80
Inventor 蒋鑫季昌琪黄庭胡德超
Owner CHINA MOBILE SHANGHAI ICT CO LTD