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What is H.264?

H.264, also known as AVC (Advanced Video Coding), is a widely used video compression standard that was jointly developed by the International Telecommunication Union (ITU-T) and the International Organization for Standardization (ISO). It is one of the most commonly used video codecs for compressing and encoding digital video content.

Here are some key features and characteristics of H.264:

High Compression Efficiency: H.264 is known for its high compression efficiency, meaning it can significantly reduce the file size of video content without compromising video quality. It achieves this by utilizing advanced compression techniques such as motion compensation, spatial prediction, and entropy coding.

Broad Device Compatibility: H.264 has gained broad support and compatibility across a wide range of devices, platforms, and operating systems. It is supported by popular web browsers, mobile devices, streaming media players, and video playback software.

Adaptive Bitrate Streaming: H.264 has played a crucial role in the development of adaptive bitrate streaming techniques. It allows for the creation of multiple versions of the same video at different bitrates and resolutions, enabling adaptive streaming protocols like MPEG-DASH and HTTP Live Streaming (HLS).

Versatile Application: H.264 is used in various applications and industries, including video streaming services, video conferencing, digital television broadcasting, Blu-ray discs, surveillance systems, and more. Its versatility and efficiency make it suitable for a wide range of video delivery scenarios.

Scalable Video Coding: H.264 supports Scalable Video Coding (SVC), which allows for the creation of layered video streams. SVC enables adaptive streaming by offering different quality levels of the same video stream, allowing devices with varying capabilities and network conditions to receive the optimal video quality.

Standardization: H.264 is an international standard specified by organizations such as the ITU-T and ISO. It has undergone extensive testing and refinement to ensure interoperability and compatibility across different devices and platforms.

H.264 has been widely adopted due to its excellent compression efficiency, broad device support, and versatility. It has paved the way for the widespread availability of video streaming services, high-definition video playback, and efficient video communication across various industries.

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