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High Efficiency Video Coding (HEVC), also known as , is the successor to the long-standing H.264 (AVC) standard and represents a major leap in digital video compression. By utilizing more sophisticated algorithms, HEVC can reduce file sizes by up to 50% compared to H.264 while maintaining the same visual quality. How HEVC Works: The Technical Edge

As of 2025-2026, HEVC remains the king of compatibility. However, newer codecs are emerging:

You set every parameter to its absolute maximum (e.g., me=tesa , subme=7 , ref=16 ). The result: A 10-second video takes an hour to encode, yet looks identical to a preset=medium encode. Solution: Start with preset=slow , then adjust only 2-3 parameters based on visual inspection.