NCLC Tag

Apple Developer Documentation Storing and sharing media with QuickTime files Color parameter atom (‘colr’) Uncompressed Y´CbCr Video in QuickTime Files — Documentation Archive Other resources Apple ProRes - MultiMedia Wiki QuickTime Tags - ExifTool MPEG-4 files - Atomic Parsley MP4RA - Official Registration Authority for the ISOBMFF family of standards Implementations/tools Implementations Language Notes metacolor.editor C# Simple Implementation, can only change NCLC tags. Provide GUI. qtff-parameter-editor C++ Good implementation, can only change NCLC tags. CLI. AMCDXVideoPatcherCLI C++ Close source. Can modify colr atom, add gama atom (but value of gamma can’t not be changed — seems a bug) qtfile_pp C++ AMCDXVideoPatcherCLI 作者的开源 parser，想必 AMCDXVideoPatcherCLI 的具体实现能够从这里看出一些端倪 dryv Rust No docs bento4 C++ 最完善 Inspection tools hexdump -vC fq MP4Box.js - a file inspection tool mp4analyser Notes 这么些处理 atom (包括 NCLC tag) 的实现，都是用 C++ 写的。其实 Rust 也能做这些 low-level 的事情，对吗？只是这门语言比较新，暂时还没有人用它来做这个事而已。那么我能不能来做呢？用 Rust 写一个 parse MOV file format 的实现。其实已经有了：dryv——这两天就在更新。 ...