Code rate control method, code rate control device and wireless communication equipment

Abstract

An embodiment of the present invention provides a code rate control method, a code rate control device, and a wireless communication device. The code rate control method is used for wireless communication, and includes: acquiring a first code rate control target and a second code rate control target; Determine encoding parameters according to the first rate control target and the second rate control target; use the encoding parameters to encode video source data; wherein, the first rate control target is a first preset time A rate control target within a segment, the second rate control target is a rate control target within a second preset time period, and the first preset time period is not shorter than the second preset time period. The example of the present invention can realize long-term and short-term control of encoding, and improve subjective experience and reliability of wireless image transmission.

Description

technical field [0001] Embodiments of the present invention relate to wireless image transmission technology, and in particular, to a code rate control method, a code rate control device, and a wireless communication device. Background technique [0002] The digital wireless image transmission system is applied to remote control aircraft, video surveillance, power line inspection and other equipment. A digital wireless image transmission system usually includes two parts: a transmitter and a receiver. The transmitter usually includes a video source module, a source encoding module, a channel encoding module, and a radio frequency module; the receiver includes a radio frequency module, a channel decoding module, and a source decoding module. modules and display modules. [0003] The function of the source coding module at the transmitting end is to compress the uncompressed code stream provided by the video source module into a code stream that can be carried by the wireless...

AI Technical Summary

Problems solved by technology

[0004] Although the above code rate control method is convenient to implement, it is insufficient to respond to environmental changes, and the reliability of the wireless image transmission system is not high

For example, if you use the method of selecting a fixed gear, the selected bit rate may be too low, which wastes the wireless channel capacity, and the user cannot experience better image transmission quality, or the selected bit rate may be too high, and the flight to After a certain distance exceeds the limit of the wireless channel capacity, the image transmission freezes and the image transmission is lost

Images