Understanding Rate Control Modes (x264, x265, vpx)What is “rate control”? It’s what a video encoder does when it decides how many bits to spend for a given frame. The goal of (lossy) video encoding is to save as many bits as possible, reducing the file size over the original input file, while retaining as much quality as possible. Rate control is a crucial step in determining that tradeoff between size and quality. Rate control comes in many form
