Video compression fundamentally involves reducing the massive amount of data required to represent frames by exploiting redundancies. This is achieved through codecs that identify and reuse similar information across frames or within a single frame, aiming for significant data reduction (e.g., 1000x) while minimizing perceptible loss. The trade-off lies between compression ratio and the computational complexity of encoding and decoding.
Impact: High. Understanding video compression is key to appreciating the engineering behind streaming and digital media. It highlights the constant innovation required to balance quality, file size, and playback efficiency.
In the source video, this keypoint occurs from 00:26:27 to 00:31:05.
Sources in support: Kieran Kunhya (FFmpeg Contributor, Developer of FFmpeg X account)

