OS Manuals

/usr/bin/qt-faststart

Utility for optimizing MP4 files for HTTP streaming

From ffmpeg-8.1-qt-faststart 8.1.3-r9 (enterprise-packages), captured 2026-11-08 by running qt-faststart --help (exit 0). permalink

Usage: qt-faststart <infile.mov> <outfile.mov>
Note: alternatively you can use -movflags +faststart in ffmpeg

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.