H.265：同画质更小体积H.265: Same Quality, Smaller Files
学习目标LEARNING OBJECTIVES
H.265 省在哪、贵在哪，什么情况下选它？
概念说明CONCEPTS
H.264 的后继（HEVC）：压缩更高效——同画质约省一半体积；代价是更吃算力、兼容性略差。
什么时候用：4K / HDR 交付、存储或带宽受限的场合、发给支持 HEVC 的平台。
操作步骤STEPS
- 确认平台支持 HEVC
- 剪辑先生成代理（proxy）
- 4K / HDR 交付优先选它省体积
练习PRACTICE
动手任务
同一成片各导 H.264 与 H.265，对比体积，再找一台老设备试播兼容性。
自检清单
做完任务后逐条自查，全部能打勾才算过。 做完任务后逐条自查，全部能打勾才算过。
常见问题FAQ
为什么剪辑 H.265 这么卡？
先做代理；老设备也不认它。
4K / HDR 交付该用什么？
H.265——同画质约省一半体积；前提是全链路支持 HEVC。
Learning Objectives学习目标
Where does H.265 save, where does it cost, and when do you pick it?
Concepts概念说明
H.264's successor (HEVC): more efficient compression — roughly half the size at the same quality; hungrier for compute, slightly less compatible.
When to use it: 4K / HDR delivery, tight storage or bandwidth, platforms that accept HEVC.
Steps操作步骤
- Confirm the platform accepts HEVC
- Generate proxies before editing
- Prefer it for 4K / HDR delivery to save size
Practice练习
Hands-on task
Export the same film as H.264 and H.265, compare size, then test playback on an older device.
Self-check
Work through the task, then tick every line; all checked means you own this card. Work through the task, then tick every line; all checked means you own this card.
FAQ常见问题
Why is editing H.265 so laggy?
Generate proxies first — and older devices can't read it.
What format for 4K / HDR delivery?
H.265 — about half the size at the same quality; the whole chain must support HEVC.