Video transmission method and device for wireless network

Abstract

The invention relates to field of wireless network communication and discloses a video transmission method and device or a wireless network. According to the invention, if the network transmission state is monitored to be jammed, the video code stream is firstly subjected to first level frame rate reduction processing, if the network transmission state is still jammed in the preset time duration after the first level frame rate reduction processing, the video code stream is subjected to second level frame rate reduction processing, so that the video effect is smoother and unhindered. During frame rate reduction processing, the current content of a buffer area of the application layer is maintained, only the newly-generated video code stream is coded and compressed, and the monitoring video is more continuous. If the network transmission state is monitored to be not jammed in the preset time duration after the frame rate reduction processing, the low-speed frame rate increasing mechanism is adopted, and if the network environment becomes worse again, the quick frame rate reduction processing is carried out.

Description

technical field [0001] The invention relates to the field of wireless network communication, in particular to the video narrowband transmission technology in the wireless network. Background technique [0002] In today's environment, mobile applications have become more and more widespread, and the demand for networks is becoming more and more urgent. As an important field in the wireless network environment, wireless video surveillance is also developing rapidly. Wireless video surveillance mainly uses digital microwave transmission technology to transmit video, sound, data and other signals. First encode and compress the video, then modulate it through the digital microwave channel, and then transmit it through the antenna. The receiving end is the opposite. The antenna receives the signal, microwave despreads, video decompresses, and finally restores the analog video signal. Install the corresponding decoding software on the computer, use the computer software to decompr...

AI Technical Summary

Problems solved by technology

[0003] The inventors of the present invention found that in the wireless network environment, due to the limitation of the transmission protocol and the instability of the network situation, the serious frame loss situation caused the incompleteness of data transmission to a certain extent.

At the same time, the network environment judgment of the network equipment terminal is single and inaccurate, which makes the data transmission jitter.

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