Transmission method and device for streaming media data

Abstract

The invention provides a transmission method and device for streaming media data. The method comprises the following steps: monitoring the current network quality by a terminal, and transmitting a request message used for acquiring a code rate corresponding to the network quality to a server according to the network quality; receiving the code rate transmitted by the server by the terminal, and transmitting the streaming media data according to the code rate, wherein a plurality of resolution ratios sorted by size and lists of a plurality of code rates corresponding to each resolution ratio are preset in the server, and in a first resolution ratio and a second resolution ratio with adjacent list sorting, the smallest code rate corresponding to the first resolution ratio is smaller than the biggest code rate corresponding to the second resolution ratio. When the network quality is poor, the terminal acquires the code rate corresponding to the network quality in the same resolution ratio, so that the influence to a visual effect due to the switching of resolution ratios can be avoided, and when the network quality is better, a high code rate can be selected, and the bandwidth can be fully used, so that the visual experience of users can be improved.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to a streaming media data transmission method and device. Background technique [0002] The DASH transmission protocol is an HTTP-based multimedia transmission protocol, so DASH-based multimedia data has strong penetration capabilities between various network devices. More and more multimedia service providers use the DASH protocol for media distribution. [0003] At present, the transmission method of streaming media data is generally on the server side. The same piece of video content is compressed into segments of multiple bit rates. The terminal can request segments of different bit rates through HTTP GET in order to achieve continuous playback of video streams. the goal of. When the network quality is good, a segment with a higher bit rate can be requested, and when the network quality is poor, a segment with a lower bit rate can be requested. The server generally ...

AI Technical Summary

Problems solved by technology

[0007] The above table 1 contains 5 kinds of resolutions, and each resolution corresponds to 2 to 6 kinds of bit rates. As the network quality changes, the bit rate requested by the terminal will also change accordingly. Since the smaller the resolution, the corresponding bit rate The smaller the rate is, if the network quality is poor, when there is no bit rate suitable for the network quality at a higher resolution, it is necessary to change the lower resolution to obtain a higher rate corresponding to the network quality at a lower resolution. Small bit rate, so if the resolution and bit rate are switched back and forth, the display effect will be reduced and the user's visual experience will be affected

Images