mp4map

mp4 atoms map

MP4map

###install npm i mp4map -g

###use mp4map video.mp4

###results like

 ftyp ( 24 bytes )
 moov ( 59144 bytes )
         mvhd ( 108 bytes )
         iods ( 33 bytes )
         trak ( 31483 bytes )
                 tkhd ( 92 bytes )
                 mdia ( 31383 bytes )
                         mdhd ( 32 bytes )
                         hdlr ( 68 bytes )
                         minf ( 31275 bytes )
                                 smhd ( 16 bytes )
                                 dinf ( 36 bytes )
                                         dref ( 28 bytes )
                                 stbl ( 31215 bytes )
                                         stsd ( 91 bytes )
                                         stts ( 24 bytes )
                                         stsc ( 52 bytes )
                                         stsz ( 15524 bytes )
                                         stco ( 15516 bytes )
         trak ( 27512 bytes )
                 tkhd ( 92 bytes )
                 mdia ( 27412 bytes )
                         mdhd ( 32 bytes )
                         hdlr ( 68 bytes )
                         minf ( 27304 bytes )
                                 vmhd ( 20 bytes )
                                 dinf ( 36 bytes )
                                         dref ( 28 bytes )
                                 stbl ( 27240 bytes )
                                         stsd ( 176 bytes )
                                         stts ( 24 bytes )
                                         ctts ( 8880 bytes )
                                         stss ( 68 bytes )
                                         stsc ( 52 bytes )
                                         stsz ( 9020 bytes )
                                         stco ( 9012 bytes )
 mdat ( 26903534 bytes )
 free ( 47 bytes )