Wireless Multimedia Sensor Networks (WMSNs) consist of mixed distributed sensor nodes and multimedia sensor nodes that are combined with a miniature video camera to retrieve, store, and process real-time multimedia data. Furthermore, real-time multimedia packet dissemination means the packets are transmitted according to the constraint of end-to-end deadlines. In WMSNs, compression complexity, and real-time data routing are the main issues that performed on a resource-constrained wireless sensor nodes. The traffic shape of multimedia streaming is highly bursty and usually requires high available bandwidth, low delay, and low Bit Error Rate. Furthermore, the variable bitrate real-time routing of multimedia data over WMSNs suffers from communication problems such as network congestion, link failures, heavy real-time traffic rate and limited bandwidth. This paper proposes a real-time video streaming routing protocol with an adaptive traffic shaping data rate over next-generation of WMSN. It evolves a novel algorithm for accomplishing adaptive traffic shaping of multimedia streaming and it utilizes the multipath forwarding with dynamic cost calculation for selecting next hop. The finding in the experimental results shows that the proposed mechanism guarantees high QoS performance in terms of delivery ratio, less end-to-end delay, optimal complexity, smooth routing reliability and fidelity criteria of the multimedia streaming compared to the baseline routing protocols.