【FFmpeg】官方：H.264VideoEncodingGuide

• H.264 Video Encoding Guide
  Contents

CBR

H.264 Video Encoding Guide

This guide focuses on the encoder x264. It assumes you have ffmpeg compiled with --enable-libx264. If you need help compiling and installing see one of our compiling guides. See HWAccelIntro for information on supported hardware H.264 encoders.

两种码率控制模型

• There are two rate control modes that are usually suggested for general use: Constant Rate Factor (CRF) or Two-Pass ABR.
• 码率控制决定了每个帧使用多少位。
• Rate control decides how many bits will be used for each frame. This will determine the file size and also how quality is distr