Multimedia frameworks – Understanding QuickTime

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QuickTime is a multimedia framework developed by Apple. This technology was created in 1989 and placed on the market in 1991 for the Macintosh.

Range

The range consists of:

  • QuickTime Player: Free media player that does not help download the HDD1
  • QuickTime Pro: a complete set of multimedia creation (QuickTime Pro does not exist with the advent of QuickTime Player 10)
  • QuickTime Broadcaster: Live Encoder to broadcast live events over the Internet
  • QuickTime Streaming Server: Creating a network of Internet broadcasting.

Description

QuickTime is composed of three main elements:

  • mov file format, documented and free to use.;
  • software media player (free and paid);
  • development tools for software and hardware.

Quicktime is multi-platform and uses many industry standards:

  • Audio CD from 1993 (QuickTime 1.6);
  • MPEG-1 and MIDI from 1994 (QuickTime 2.0);
  • DV and H.261 from 1998 (QuickTime 3.0);
  • H.263, Macromedia Flash and SMIL from 1999 (QuickTime 4.0);
  • MPEG-2, MPEG-4, AAC, 3GPP and 3GPP2 from 2002 (QuickTime 6.0);
  • H.264 and OpenGL integration from 2005 (QuickTime 7.0).

In the latest versions of Apple’s operating system Mac OS X, this technique is included in the middle layers, and manages a large part of the display.

Apple provides free QuickTime Player for Macintosh and Microsoft Windows. It can also work in Linux by installing CrossOver Office or Wine.

In its version 6.0, this player includes the management of MPEG-4, which led to its adoption by NTT DoCoMo as a media player on mobile phone terminals. Starting with version 6, QuickTime includes managing the 3GPP and since version 6.4, also the management of 3GPP2.

3GPP and 3GPP2 are MPEG 4 phones, specially designed for mobile devices. Released in early May 2005, QuickTime 7 supports the H-264, the new High Definition (HD) already promised as a future standard.

In the latest versions of Apple’s operating system Mac OS X, this technique is included in the middle layers, and manages a large part of the display.

Apple provides free QuickTime Player for Macintosh and Microsoft Windows. It can also work in Linux by installing CrossOver Office or Wine.

A QuickTime file contains one or more tracks, each has a particular type of data: audio, video, effects or text (for subtitles, for example).

Each track contains a track media, either digitally encoded stream (with a codec such as Cinepak, Sorenson, MP3, JPEG, DivX …) or a reference to a media in another file or network.

Internally, the QuickTime file format features the atoms tree. Each uses a four-byte identifier to determine structure. An atom can be a parent to other atoms or it can contain data (but it can not be both at once). These files usually have the extension, mov.

Use

In 1997 QuickTime is used by thirteen million people streaming playback, making it one of the major software for this purpose, with HTML5, VLC, Flash, iTunes, Windows Media Player and RealPlayer.

In 2013, its market share is greatly reduced due to the quasi-monopoly of Flash technology.

Using SoundFonts

QuickTime can play MIDI files using SoundFonts (. Sf2) or DLS. For this, we must move or copy the soundfonts files (sf2 extension or dls..) In C: \ Windows \ system32 \ QuickTime (for Windows) or ~ / Library / Audio / Sounds / Banks folder for (Mac OS X).

In the menu Edit / Preferences / Quicktime preference / Music, select the soundfont file to use by clicking on one of the radio buttons to the left of the name. The changes are not taken into account at the next start of QuickTime. So just quit and restart the application to enable the change in sound library.

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