# phpman > perldoc > Image::ExifTool::QuickTime

## NAME
    [Image::ExifTool::QuickTime](https://www.chedong.com/phpMan.php/perldoc/Image%3A%3AExifTool%3A%3AQuickTime/markdown) - Read QuickTime and MP4 meta information

## SYNOPSIS
    This module is used by [Image::ExifTool](https://www.chedong.com/phpMan.php/perldoc/Image%3A%3AExifTool/markdown)

## DESCRIPTION
    This module contains routines required by [Image::ExifTool](https://www.chedong.com/phpMan.php/perldoc/Image%3A%3AExifTool/markdown) to extract information from QuickTime
    and MP4 video, M4A audio, and HEIC image files.

## AUTHOR
    Copyright 2003-2022, Phil Harvey (philharvey66 at gmail.com)

    This library is free software; you can redistribute it and/or modify it under the same terms as
    Perl itself.

## REFERENCES
    <<http://developer.apple.com/mac/library/documentation/QuickTime/QTFF/QTFFChap1/qtff1.html>>
    <<http://search.cpan.org/dist/MP4-Info-1.04/>>
    <<http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt>>
    <<http://wiki.multimedia.cx/index.php?title=Apple_QuickTime>>
    <<http://atomicparsley.sourceforge.net/mpeg-4files.html>>
    <<http://wiki.multimedia.cx/index.php?title=QuickTime_container>>
    <<http://code.google.com/p/mp4v2/wiki/iTunesMetadata>>
    <<http://www.canieti.com.mx/assets/files/1011/IEC_100_1384_DC.pdf>>
    <<http://www.adobe.com/devnet/flv/pdf/video_file_format_spec_v10.pdf>>

## SEE ALSO
    "QuickTime Tags" in [Image::ExifTool::TagNames](https://www.chedong.com/phpMan.php/perldoc/Image%3A%3AExifTool%3A%3ATagNames/markdown), Image::[ExifTool(3pm)](https://www.chedong.com/phpMan.php/man/ExifTool/3pm/markdown)