https://www.semanticscholar.org/topic/Extensible-MPEG-4-Textual-Format/2776587
Extensible MPEG-4 Textual Format | Semantic Scholar
The Extensible MPEG-4 Textual Format (XMT) is a high-level, XML-based file format for storing MPEG-4 data in a way suitable for further editing. In contrast,...
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