Scalable Video Coding (SVC) refers to the compression technique used to store and transmit video data in a scalable format. It is designed to improve the efficiency of video streaming and delivery over various network connections and devices with varying capabilities.
SVC enables video streaming systems to adapt to diverse network conditions and device capabilities while maintaining video quality. It achieves scalability by dividing the video data into multiple layers or streams, each containing different levels of detail or resolution. These layers are referred to as temporal or spatial scalability.
Temporal scalability focuses on the frame rate of the video. SVC can generate lower frame-rate versions of the video, allowing devices with restricted processing capabilities or limited bandwidth to display a smooth and viewable video stream. The frame rate can be adjusted according to the network conditions or device capabilities, ensuring better video streaming experiences.
Spatial scalability deals with the video resolution. SVC can provide video streams with different levels of detail or resolutions, allowing devices with varying screen sizes and display capabilities to receive an optimal version of the video. This feature enables adaptive streaming based on the available network bandwidth and device characteristics.
By employing SVC, video streaming services can deliver high-quality video content to a wide range of devices, including smartphones, tablets, televisions, and computers, even in varying network conditions. It enhances the efficiency of video delivery, reduces bandwidth requirements, and allows users to enjoy streaming services seamlessly.
