What are the most common video compression formats used in CCTV?

The most commonly used video compression formats in CCTV systems are H.264 and H.265. These formats are particularly significant in the realm of video surveillance due to their ability to maintain high video quality while significantly reducing file sizes.

H.264, also known as AVC (Advanced Video Coding), is widely adopted because it effectively compresses video with minimal loss of quality, making it ideal for streaming and recording high-resolution video in real-time. Its efficiency allows for longer recording times and less bandwidth consumption, which translates to better performance in surveillance applications.

H.265, or HEVC (High Efficiency Video Coding), is an advancement of H.264, providing even better compression rates—up to 50% more efficient than H.264 at the same level of video quality. This means that users can achieve higher resolutions and frame rates without needing substantially larger storage solutions.

In the context of CCTV, where storage and bandwidth can be significant concerns, the choice of H.264 and H.265 formats is particularly beneficial, making them the preferred options in modern CCTV systems.