MP4
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gpac
fragmented MP4 aka fMP4: media - What exactly is Fragmented mp4(fMP4)? How is it different from normal mp4? - Stack Overflow
Fast start
To speed up loading or streaming, metadata should be at the begining:
'moov' info atom
'mdat' data atom
Encoder usally output:
'mdat' data atom
'moov' info atom
To fix that:
Python version https://github.com/danielgtaylor/qtfaststart
https://github.com/FFmpeg/FFmpeg/blob/master/tools/qt-faststart.c
Google Code Archive - Long-term storage for Google Code Project Hosting. see also issues https://code.google.com/archive/p/moovrelocator/issues
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