容器格式 是什么？- 概念解释
容器格式是一个文件包装器，用于将视频、音频和字幕流一起存放
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Container Format: Simple Definition
A container format (also called a wrapper or mux) is a file format that packages together different types of data - typically video, audio, and subtitles - into a single file.
The container is like a box that holds separate items. An MP4 file (container) holds H.264 video (codec), AAC audio (codec), and maybe subtitle text - all bundled together so your media player can synchronize and play them correctly.
Containers vs Codecs
People often confuse containers and codecs. The container (MP4, MKV, MOV) determines how data is organized in the file. The codec (H.264, H.265, AAC) determines how each data stream is compressed.
The same video stream can be put in different containers. H.264 video can be in an MP4, MKV, or MOV file. The video quality is identical - only the container is different. This is why “remuxing” (changing container) does not require re-encoding and has no quality loss.
Examples of Container Format
MP4
The most compatible video container. Holds H.264/H.265 video, AAC audio, and subtitles. Used everywhere.
MKV
Flexible open-source container. Holds unlimited video, audio, and subtitle tracks. Popular for media archiving.
MOV
Apple's QuickTime container. Used in Final Cut Pro and iOS video recording.
AVI
Microsoft's older video container. Limited features but very widely supported for legacy content.
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