H.264：拿来看的交付格式H.264: The Delivery Format

难度LEVELL1 · 入门L1 · Beginner 领域TOPIC交付

学习目标LEARNING OBJECTIVES

H.264 为什么体积小、兼容性好，也为什么绝不能拿它二次加工？

概念说明CONCEPTS

帧间压缩：利用相邻帧的相似性省数据——体积小、兼容性最好，是交付与网络最通用的格式。

原理：帧与帧之间做依赖

什么时候用：成片导出、发平台、发客户、手机上观看。

操作步骤STEPS

  1. 成片导出选 H.264（平台预设起步）
  2. 发平台、发客户、手机观看都用它
  3. 不要拿它做二次调色
  4. 时间线卡顿留意长 GOP 结构

练习PRACTICE

动手任务

把成片用两档质量各导一次 H.264，在手机上播放对比观感与体积。

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

为什么拖时间线这么卡？

长 GOP 结构；而且交付格式当素材调，画质必崩。

交付给平台用什么格式？

H.264 起步最稳（平台预设）；4K / HDR 再考虑 H.265。

Learning Objectives学习目标

Why is H.264 small and universally compatible — and why must it never be reworked?

Concepts概念说明

Inter-frame compression: it exploits the similarity between neighbouring frames to save data — small, and the most compatible format for delivery and the web.

Frames depending on each other

When to use it: final exports, publishing to platforms, sending to clients, phone viewing.

Steps操作步骤

  1. Pick H.264 for final exports (start from a platform preset)
  2. Use it for platforms, clients and phone viewing
  3. Never grade it a second time
  4. Scrubbing lag? That's the long-GOP structure

Practice练习

Hands-on task

Export the finished film twice at two quality levels, then compare size and look on a phone.

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 my timeline scrubbing so laggy?

The long-GOP structure — and grading a delivery format is where pictures fall apart.

What format for platform delivery?

H.264 first (platform presets); consider H.265 for 4K / HDR.

本卡术语Terms in this card

时间线Timeline 导出Export H.264H.264 预设Preset 调色Grade 帧Frame 长 GOPLong GOP