A control method for automatic frame reduction by level in streaming media distribution and transmission

Abstract

The invention relates to a streaming media distribution transmission hierarchical automatic frame reducing control method. A self-adaption video streaming media system, based on transmission control protocol (TCP), controlled by streaming media real-time data transmission is utilized. According to the method, a distribution service unit is established for each video resource with the only serial number through the video streaming media system, data frames of video resources are accordingly processed by establishing corresponding memory space, so that sending conditions of video data can be automatically judged, and grade evaluation can be conducted to a client network. In addition, automatically-subtract-frame quality of service (QoS) decision control can be automatically achieved according to specific results of the evaluation, and therefore streaming media real-time transmission quality is well guaranteed, occurrences of abnormal phenomena such as video picture jitter, pixelization, screen blurring and trailing are effectively avoided, complexity of achieving logic for an application layer is lowered, and real-time performance and fluency of video experience are improved.

Description

technical field [0001] The invention relates to the technical field of computer network multimedia communication, in particular to a control method for streaming media distribution adaptive network transmission hierarchical automatic frame reduction. Background technique [0002] With the continuous advancement of streaming media technology, the application of network streaming media such as large-capacity and high-concurrency video surveillance system platform, video conferencing system platform, and website streaming video-on-demand / live service platform is gradually playing a role in people's office and daily life. play an increasingly important role. The current IP network can only provide a "best effort" service, and cannot provide real-time streaming media transmission with high requirements such as transmission rate, network jitter, transmission delay, packet loss rate, packet error rate, and packet disorder. Effective Quality of Service (QoS) guarantees. QoS (Quali...

AI Technical Summary

Problems solved by technology

Therefore, in a complex network environment with serious network jitter, transmission delay, and packet loss rate, the real-time transmission quality (QoS) of streaming media cannot be guaranteed, resulting in jitter, mosaic, blurred screen, tailing, and stuck video images. Abnormal phenomena such as blockage occur;

[0005] In a system that uses the RTP / RTCP protocol based on UDP transmission for transmission control, although better results are obtained in some environments, the performance is very poor in some environments; because the essence is to use the UDP protocol For streaming media transmission, UDP itself has no congestion control mechanism, is not friendly to TCP transmission, and does not guarantee the reliable transmission of streaming media data. Often, when the network is unstable, such as out-of-order, serious packet loss, RTP / RTCP It does not provide retransmission itself, and it is more difficult to solve it at the application layer, and it also violates the principle of RTP real-time transmission, so it cannot better guarantee the quality of streaming media transmission

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