Method for distributing low-bit-rate video streaming composite high definition graphic data and bandwidth of low-bit-rate video streaming composite high definition graphic data

Abstract

The invention relates to a method for distributing low-bit-rate video streaming composite high definition graphic data and bandwidth of the low-bit-rate video streaming composite high definition graphic data. Under the condition of the low bit rate, the transmission is completed through the bandwidth distribution, the priority of audio interaction is the highest, the priority of transmission of low-bit-rate video streaming is higher, and the priority of transmission of composite high definition graphic data is the lowest. Each frame of the composite high definition graphic data corresponds to the assigned frame of the low-bit-rate video streaming according to time stamp logos, and synchronization of two paths of data is kept from the frame. Each frame of the composite high definition graphic data is shown through blocking, coding compression, transmission and showing. Each of blocks covers low-bit-rate video frames synchronous with the blocks which are amplified to show corresponding positions according to position information after transmission is completed, and the composite process is reverted to a high definition image gradually. The method can guarantee audio interaction and low-bit-rate video and transmit the high definition graphic data synchronously under the low bandwidth condition.

Description

technical field [0001] The invention relates to a method for transmitting composite high-definition graphic data of low bit rate video streams, in particular to a method for bandwidth allocation and transmission in low bit rate. Background technique [0002] At present, the Explorer700 system of the fourth-generation satellite of INMARSAT is widely used. When the received signal strength is the best, the bandwidth can reach 128kbps, and the bandwidth ranges from 16kbps to 128kbps. In the process of maritime satellite communication, in order to maintain a stable receiving signal strength of the antenna, the static communication method is often adopted, that is, the antenna is fixed when it is aligned with the satellite to obtain a good signal strength. The antenna is connected to the individual soldier in a short-distance wireless manner. For example: Explorer 700, the signal strength can reach 54~57dBHZ in the static mode, and the data flow bandwidth can reach 64~128kbps, w...

AI Technical Summary

Problems solved by technology

It is impossible to realize high-definition video transmission under the existing bandwidth conditions

The limitation of low bit rate video greatly restricts the application function and application effect based on maritime satellite communication