QuickTime

QuickTime

QuickTime Player 7.6.6 playing Big Buck Bunny running on Microsoft Windows
Developer(s) Apple Inc.
Initial release December 2, 1991
Stable release 7.76.80.95 (October 7, 2014) [±][1]
Preview release None [±]
Operating system Windows XP SP2 or later
Mac OS X Leopard or later
Type Multimedia framework
License Freemium
Website apple.com/quicktime
QuickTime X

QuickTime X 10.4 playing Big Buck Bunny running on OS X Yosemite
Developer(s) Apple Inc.
Initial release August 28, 2009
Stable release 10.4 (October 16, 2014) [±]
Operating system Mac OS X Snow Leopard or later
Website apple.com/macosx/apps/all.html#quicktime

QuickTime is an extensible multimedia framework developed by Apple Inc., capable of handling various formats of digital video, picture, sound, panoramic images, and interactivity. The classic version of QuickTime is available for Windows XP and later, as well as Mac OS X Leopard and later operating systems. A more recent version, QuickTime X, is currently available on Mac OS X Snow Leopard and newer.

As of the Mac OS X Lion, the underlying media framework for Quicktime, QTKit, is deprecated in favor of a newer graphics framework, AV Foundation.[2] The Quicktime X player however is still included with the new releases of the OS.

Overview

QuickTime is bundled with OS X. QuickTime for Microsoft Windows has always been downloadable as a standalone installation, as well as being bundled with Apple's iTunes (prior to iTunes 10.5).

Software development kits (SDKs) for QuickTime are available to the public with an Apple Developer Connection (ADC) subscription.

It is available free of charge for both OS X and Windows operating systems. There are some other free player applications that rely on the QuickTime framework, providing features not available in the basic QuickTime Player. For example, iTunes can export audio in WAV, AIFF, MP3, AAC, and Apple Lossless. In addition, OS X has a simple AppleScript which can be used to play a movie in full-screen mode.,[3] but since version 7.2 full-screen viewing is now supported in the non-pro version.[4]

QuickTime Pro

QuickTime Player 7 is limited to only basic playback operations unless a QuickTime Pro license key is purchased from Apple. Until recently, Apple's professional applications (e.g. Final Cut Studio, Logic Studio) included a QuickTime Pro license. Pro keys are specific to the major version of QuickTime for which they are purchased and unlock additional features of the QuickTime Player application on OS X or Windows.[5] The Pro key does not require any additional downloads; entering the registration code immediately unlocks the hidden features.

Features enabled by the Pro license include, but are not limited to:

Mac OS X Snow Leopard includes QuickTime X. QuickTime Player X lacks cut, copy and paste and will only export to four formats, but its limited export feature is free. Users do not have an option to upgrade to a pro version of QuickTime X, but those who have already purchased QuickTime 7 Pro and are upgrading to Snow Leopard from a previous version of OS X will have QuickTime 7 stored in the Utilities or user defined folder. Otherwise, users will have to install QuickTime 7 from the "Optional Installs" directory of the Snow Leopard DVD after installing the OS.

Mac OS X Lion and OS X Mountain Lion also include QuickTime X. No installer for QuickTime 7 is included with these software packages, but users can download the QuickTime 7 installer from the Apple support site.

QuickTime framework

The QuickTime framework provides the following:

As of early 2008, the framework hides many older codecs listed below from the user although the option to "Show legacy encoders" exists in QuickTime Preferences to use them.[7] The framework supports the following file types and codecs natively:[8]

Audio Video Picture

PictureViewer

PictureViewer is a component of QuickTime for Microsoft Windows and the Mac OS 8 and Mac OS 9 operating systems. It is used to view picture files from the still image formats that QuickTime supports. In OS X, it is replaced by Preview.[10][11]

File formats

Main article: QuickTime File Format

The native file format for QuickTime video, QuickTime File Format, specifies a multimedia container file that contains one or more tracks, each of which stores a particular type of data: audio, video, effects, or text (e.g. for subtitles). Each track either contains a digitally encoded media stream (using a specific format) or a data reference to the media stream located in another file. The ability to contain abstract data references for the media data, and the separation of the media data from the media offsets and the track edit lists means that QuickTime is particularly suited for editing, as it is capable of importing and editing in place (without data copying).

Other file formats that QuickTime supports natively (to varying degrees) include AIFF, WAV, DV-DIF, MP3, and MPEG program stream. With additional QuickTime Components, it can also support ASF, DivX Media Format, Flash Video, Matroska, Ogg, and many others.

QuickTime and MPEG-4

On February 11, 1998, the ISO approved the QuickTime file format as the basis of the MPEG-4 file format. The MPEG-4 file format specification was created on the basis of the QuickTime format specification published in 2001.[12] The MP4 (.mp4) file format was published in 2001 as the revision of the MPEG-4 Part 1: Systems specification published in 1999 (ISO/IEC 14496-1:2001).[13][14][15] In 2003, the first version of MP4 format was revised and replaced by MPEG-4 Part 14: MP4 file format (ISO/IEC 14496-14:2003).[16] The MP4 file format was generalized into the ISO Base Media File Format ISO/IEC 14496-12:2004, which defines a general structure for time-based media files. It in turn is used as the basis for other multimedia file formats (for example 3GP, Motion JPEG 2000).[17][18][19][20][21] A list of all registered extensions for ISO Base Media File Format is published on the official registration authority website www.mp4ra.org. This registration authority for code-points in "MP4 Family" files is Apple Computer Inc. and it is named in Annex D (informative) in MPEG-4 Part 12.[20]

By 2000, MPEG-4 formats became industry standards, first appearing with support in QuickTime 6 in 2002. Accordingly, the MPEG-4 container is designed to capture, edit, archive, and distribute media, unlike the simple file-as-stream approach of MPEG-1 and MPEG-2.[22]

Profile support

QuickTime 6 added limited support for MPEG-4; specifically encoding and decoding using Simple Profile (SP). Advanced Simple Profile (ASP) features, like B-frames, were unsupported (in contrast with, for example, encoders such as XviD or 3ivx). QuickTime 7 supports the H.264 encoder and decoder.[23]

Container benefits

Because both MOV and MP4 containers can use the same MPEG-4 codecs, they are mostly interchangeable in a QuickTime-only environment. MP4, being an international standard, has more support. This is especially true on hardware devices, such as the Sony PSP and various DVD players; on the software side, most DirectShow / Video for Windows codec packs[24][25] include an MP4 parser, but not one for MOV.

In QuickTime Pro's MPEG-4 Export dialog, an option called "Passthrough" allows a clean export to MP4 without affecting the audio or video streams. QuickTime 7 now supports multi-channel AAC-LC and HE-AAC audio (used, for example, in the high-definition trailers on Apple's site[26]), for both .MOV and .MP4 containers.

History

Apple released the first version of QuickTime on December 2, 1991 as a multimedia add-on for System Software 6 and later. The lead developer of QuickTime, Bruce Leak, ran the first public demonstration at the May 1991 Worldwide Developers Conference, where he played Apple's famous 1984 TV commercial in a window at 320x240 pixel resolution. Microsoft's competing technology, Video for Windows did not appear until November 1992.

QuickTime 1.x

The original video codecs included:

The first commercial project produced using QuickTime 1.0 was the CD-ROM From Alice to Ocean. The first publicly visible use of QuickTime was Ben & Jerry's interactive factory tour (dubbed The Rik & Joe Show after its in-house developers). The Rik and Joe Show was demonstrated onstage at MacWorld in San Francisco when John Sculley announced QuickTime.[28]

Apple released QuickTime 1.5 for Mac OS in the latter part of 1992. This added the SuperMac-developed Cinepak vector-quantization video codec (initially known as Compact Video). It could play video at 320×240 resolution at 30 frames per second on a 25 MHz Motorola 68040 CPU. It also added text tracks, which allowed for captioning, lyrics and other potential uses.

Apple contracted San Francisco Canyon Company to port QuickTime to the Windows platform. Version 1.0 of QuickTime for Windows provided only a subset of the full QuickTime API, including only movie playback functions driven through the standard movie controller.

QuickTime 1.6 came out the following year. Version 1.6.2 first incorporated the "QuickTime PowerPlug" which replaced some components with PowerPC-native code when running on PowerPC Macs.

QuickTime 2.x

Apple released QuickTime 2.0 for System Software 7 in February 1994—the only version never released for free. It added support for music tracks, which contained the equivalent of MIDI data and which could drive a sound-synthesis engine built into QuickTime itself (using a limited set of instrument sounds licensed from Roland), or any external MIDI-compatible hardware, thereby producing sounds using only small amounts of movie data.

Following Bruce Leak's departure to Web TV, the leadership of the QuickTime team was taken over by Peter Hoddie.

QuickTime 2.0 for Windows appeared in November 1994 under the leadership of Paul Charlton. As part of the development effort for cross-platform QuickTime, Charlton (as architect and technical lead), along with ace individual contributor Michael Kellner and a small highly effective team including Keith Gurganus, ported a subset of the Macintosh Toolbox to Intel and other platforms (notably, MIPS and SGI Unix variants) as the enabling infrastructure for the QuickTime Media Layer (QTML) which was first demonstrated at the Apple Worldwide Developers Conference (WWDC) in May 1996. The QTML later became the foundation for the Carbon API which allowed legacy Macintosh applications to run on the Darwin kernel in Mac OS X.

The next versions, 2.1 and 2.5, reverted to the previous model of giving QuickTime away for free. They improved the music support and added sprite tracks which allowed the creation of complex animations with the addition of little more than the static sprite images to the size of the movie. QuickTime 2.5 also fully integrated QuickTime VR 2.0.1 into QuickTime as a QuickTime extension. On January 16, 1997, Apple released the QuickTime MPEG Extension (PPC only) as an add-on to QuickTime 2.5, which added software MPEG-1 playback capabilities to QuickTime.

QuickTime 3.x

The release of QuickTime 3.0 for Mac OS on March 30, 1998 introduced the now-standard revenue model of releasing the software for free, but with additional features of the Apple-provided MoviePlayer application that end-users could only unlock by buying a QuickTime Pro license code. Since the "Pro" features were the same as the existing features in QuickTime 2.5, any previous user of QuickTime could continue to use an older version of the central MoviePlayer application for the remaining lifespan of Mac OS to 2002; indeed, since these additional features were limited to MoviePlayer, any other QuickTime-compatible application remained unaffected.

QuickTime 3.0 added support for graphics importer components that could read images from GIF, JPEG, TIFF and other file formats, and video output components which served primarily to export movie data via FireWire. Apple also licensed several third-party technologies for inclusion in QuickTime 3.0, including the Sorenson Video codec for advanced video compression, the QDesign Music codec for substantial audio compression, and the complete Roland Sound Canvas instrument set and GS Format extensions for improved playback of MIDI music files. It also added video effects which programmers could apply in real-time to video tracks. Some of these effects would even respond to mouse clicks by the user, as part of the new movie interaction support (known as wired movies).

QuickTime interactive

During the development cycle for QuickTime 3.0, part of the engineering team was working on a more advanced version of QuickTime to be known as QuickTime interactive or QTi. Although similar in concept to the wired movies feature released as part of QuickTime 3.0, QuickTime interactive was much more ambitious. It allowed any QuickTime movie to be a fully interactive and programmable container for media. A special track type was added that contained an interpreter for a custom programming language based on 68000 assembly language. This supported a comprehensive user interaction model for mouse and keyboard event handling based in part on the AML language from the Apple Media Tool.

The QuickTime interactive movie was to have been the playback format for the next generation of HyperCard authoring tool. Both the QuickTime interactive and the HyperCard 3.0 projects were canceled in order to concentrate engineering resources on streaming support for QuickTime 4.0, and the projects were never released to the public.

QuickTime 4.x

Apple released QuickTime 4.0 on June 8, 1999[29] for Mac OS 7.5.5 through 8.6 (later Mac OS 9) and Windows 95, Windows 98, and Windows NT. Three minor updates (versions 4.0.1, 4.0.2, and 4.0.3) followed.[30] It introduced features that most users now consider basic:[31]

On December 17, 1999, Apple provided QuickTime 4.1, this version's first major update.[29] Two minor versions (4.1.1 and 4.1.2) followed.[32] The most notable improvements in the 4.1.x family were:[33]

QuickTime 5.x

QuickTime 5 was one of the shortest-lived versions of QuickTime, released in April 2001 and superseded by QuickTime 6 a little over a year later. This version was the last to have greater capabilities under Mac OS 9 than under Mac OS X, and the last version of QuickTime to support Mac OS versions 7.5.5 through 8.5.1 on a PowerPC Mac and Windows 95. Version 5.0 was initially only released for Mac OS and Mac OS X on April 14, 2001, and version 5.0.1 followed shortly thereafter on April 23, 2001, supporting Mac OS, Mac OS X, and Windows.[34] Three more updates to QuickTime 5 (versions 5.0.2, 5.0.4, and 5.0.5) were released over its short lifespan.

QuickTime 5 delivered the following enhancements:[35]

QuickTime 6.x

On July 15, 2002, Apple released QuickTime 6.0, providing the following features:[38]

QuickTime 6 was initially available for Mac OS 8.6 – 9.x, Mac OS X (10.1.5 minimum), and Windows 98, Me, 2000, and XP. Development of QuickTime 6 for Mac OS slowed considerably in early 2003, after the release of Mac OS X v10.2 in August 2002. QuickTime 6 for Mac OS continued on the 6.0.x path, eventually stopping with version 6.0.3.[39]

QuickTime 6.1 & 6.1.1 for Mac OS X v10.1 and Mac OS X v10.2 (released October 22, 2002)[40] and QuickTime 6.1 for Windows (released March 31, 2003)[41] offered ISO-Compliant MPEG-4 file creation and fixed the CAN-2003-0168 vulnerability.

Apple released QuickTime 6.2 exclusively for Mac OS X on April 29, 2003 to provide support for iTunes 4, which allowed AAC encoding for songs in the iTunes library.[42] (iTunes was not available for Windows until October 2003.)

On June 3, 2003, Apple released QuickTime 6.3, delivering the following:[43]

QuickTime 6.4, released on October 16, 2003 for Mac OS X v10.2, Mac OS X v10.3, and Windows, added the following:[44]

On December 18, 2003, Apple released QuickTime 6.5, supporting the same systems as version 6.4. Versions 6.5.1 and 6.5.2 followed on April 28, 2004 and October 27, 2004. These versions would be the last to support Windows 98 and Me. The 6.5 family added the following features:[45]

QuickTime 6.5.3 was released on October 12, 2005 for Mac OS X v10.2.8 after the release of QuickTime 7.0, fixing a number of security issues.

QuickTime 7.x

Initially released on April 29, 2005 in conjunction with Mac OS X v10.4 (for version 10.3.9 and 10.4.x), QuickTime 7.0 featured the following:[46][47]

After a couple of preview Windows releases,[49] Apple released 7.0.2 as the first stable release on September 7, 2005 for Windows 2000 and Windows XP. Version 7.0.4, released on January 10, 2006 was the first universal binary version. But it suffered numerous bugs, including a buffer overrun, which is more problematic to most users.

Apple dropped support for Windows 2000 with the release of QuickTime 7.2 on July 11, 2007.[50] The last version available for Windows 2000, 7.1.6, contains numerous security vulnerabilities.[51] References to this version have been removed from the QuickTime site, but it can be downloaded from Apple's support section.[52] Apple has not indicated that they will be providing any further security updates for older versions. QuickTime 7.2 is the first version for Windows Vista.

Apple dropped support for Flash content in QuickTime 7.3, breaking content that relied on Flash for interactivity, or animation tracks. Security concerns seem to be part of the decision.[53] Flash flv files can still be played in QuickTime if the free Perian plugin is added.

In QuickTime 7.3, a processor that supports SSE is required. QuickTime 7.4 does not require SSE. Unlike versions 7.2 and 7.3, QuickTime 7.4 cannot be installed on Windows XP SP1 system (its setup program checks if Service Pack 2 is installed). QuickTime 7.5 was released on June 10, 2008. QuickTime 7.5.5 was released on September 9, 2008, which requires Mac OS X v10.4 or higher, dropping 10.3 support. QuickTime 7.6 was released on January 21, 2009. QuickTime 7.7 was released on August 23, 2011.

QuickTime X (QuickTime Player v10.x)

QuickTime X (pronounced QuickTime Ten[54]) was initially demonstrated at WWDC on June 8, 2009, and shipped with Mac OS X v10.6.[55]

It includes visual chapters,[56] conversion, sharing to YouTube, video editing,[57] capture of video and audio streams, screen recording,[58] GPU acceleration, and live streaming.[59]

But it removed support for various widely used formats; in particular the omission of MIDI caused significant inconvenience and trouble to many musicians and their potential audiences.[60]

In addition, a screen recorder is featured which records whatever is on the screen. However, to prevent bootlegging the user is unable to record any video that is played on the DVD Player or purchased content from iTunes, thus being greyed out.

The reason for the jump in numbering from 7 to 10 (X) was to indicate a similar break with the previous versions of the product that Mac OS X indicated. QuickTime X is fundamentally different from previous versions, in that it is provided as a Cocoa (Objective-C) framework and breaks compatibility with the previous QuickTime 7 C-based APIs that were previously used. QuickTime X was completely rewritten to implement modern audio video codecs in 64-bit. QuickTime X is a combination of two technologies: QuickTime Kit Framework (QTKit) and QuickTime X Player. QTKit is used by QuickTime player to display media. QuickTime X does not implement all of the functionality of the previous QuickTime as well as some of the codecs. When QuickTime X attempts to operate with a 32-bit codec or perform an operation not supported by QuickTime X, it will start a 32-bit helper process to perform the requested operation. The website Ars Technica revealed that QuickTime X uses QuickTime 7.x via QTKit to run older codecs that have not made the transition to 64-bit.[61]

QuickTime 7 may still be required to support older formats on Snow Leopard such as QTVR, interactive QuickTime movies, and MIDI files. In such cases, a compatible version of QuickTime 7 is included on Snow Leopard installation disc and may be installed side-by-side with QuickTime X. Users who have a Pro license for QuickTime 7 can then activate their license.[62]

A Snow Leopard-compatible version of QuickTime 7 may also be downloaded from Apple Support website.[63]

The software got an increment with the release of Mavericks, and as of June 2014, the current version is v10.3. It contains more sharing options (email, YouTube, Facebook, Flickr etc.), more export options (including web export in multiple sizes, and export for iPhone 4/iPad/Apple TV (but not Apple TV 2)). It also includes a new way of fast forwarding through a video, magic mouse support for scrolling.

Platform support

Macintosh
OS Latest version
System 6.0.7 – 7.0.1 2.5[64]
System 7.1 – 8.1 on 68K 4.0.3[65]
System 7.1.2 – 7.5.3 on PowerPC 4.0.3[65]
System 7.5.5 – 8.5.1 on PowerPC 5.0.5[66]
Mac OS 8.6 – 9 6.0.3[67]
Mac OS X v10.0 5.0 (bundled)
Mac OS X v10.1 6.3.1[68]
Mac OS X v10.2 6.5.3[69]
Mac OS X v10.3 7.5[70]
Mac OS X v10.4 7.6.4[71]
Mac OS X v10.5 7.7[72]
Mac OS X v10.6 10.0[73] / 7.7.1[74] (optional)
Mac OS X v10.7 10.1[75] / 7.7.1[74] (optional)
OS X v10.8 10.2 / 7.7.1[74] (optional)
OS X v10.9 10.3 / 7.7.1[74] (optional)
OS X v10.10 10.4 / 7.7.1[74] (optional)
Microsoft Windows
OS Latest version
Windows 3.1xWindows NT 3.1 – 3.51 2.1.2[76]
Windows 95 5.0.5[77]
Windows NT 4.0 6.1[78]
Windows 98, ME 6.5.2[79]
Windows 2000 7.1.6[80]
Windows XP and later 7.7.6[81]

Creating software that uses QuickTime

QuickTime X

QuickTime X provides the QTKit Framework on Mac OS 10.6 and greater.[82]

Previous versions

QuickTime consists of two major subsystems: the Movie Toolbox and the Image Compression Manager. The Movie Toolbox consists of a general API for handling time-based data, while the Image Compression Manager provides services for dealing with compressed raster data as produced by video and photo codecs.

Developers can use the QuickTime software development kit (SDK) to develop multimedia applications for Mac or Windows with the C programming language or with the Java programming language (see QuickTime for Java), or, under Windows, using COM/ActiveX from a language supporting this.

The COM/ActiveX option was introduced as part of QuickTime 7 for Windows and is intended for programmers who want to build standalone Windows applications using high-level QuickTime movie playback and control with some import, export, and editing capabilities. This is considerably easier than mastering the original QuickTime C API.[83]

QuickTime 7 for Mac introduced the QuickTime Kit (aka QTKit), a developer framework that is intended to replace previous APIs for Cocoa developers. This framework is for Mac only, and exists as Objective-C abstractions around a subset of the C interface. Mac OS X v10.5 extends QTKit to full 64-bit support. The QTKit allows multiplexing between QuickTime X and QuickTime 7 behind the scenes so that the user need not worry about which version of QuickTime they need to use.

Bugs and vulnerabilities

QuickTime 7.4 was found to disable Adobe's video compositing program, After Effects.[84][85][86] This was due to the DRM built into version 7.4 since it allowed movie rentals from iTunes. QuickTime 7.4.1 resolved this issue.[87]

Versions 4.0 through 7.3 contained a buffer overflow bug which could compromise the security of a PC using either the QuickTime Streaming Media client, or the QuickTime player itself.[88] The bug was fixed in version 7.3.1.

QuickTime 7.5.5 and earlier are known to have a list of significant vulnerabilities that allow a remote attacker to execute arbitrary code or cause a denial of service (out-of-bounds memory access and application crash) on a targeted system. The list includes six types of buffer overflow,[89][90][91][92][93][94] data conversion,[95] signed vs unsigned integer mismatch,[96] and unititialized memory pointer[97]

QuickTime 7.6 has been found to disable Macintosh users' ability to play certain games, such as Civilization IV and The Sims 2. There are fixes available from the publisher, Aspyr.[98]

QuickTime 7 lacks support for H.264 Sample Aspect Ratio .[99] QuickTime X does not have this limitation, but many Apple products (such as iTunes and Apple TV) still use the older QuickTime 7 engine.

Quicktime 7.7.x Windows fails to encode H.264 on Dual CPU systems with more than ~20 threads, e.g. HP Z820 with 2x 8-core CPUs. Suggested 'solution': Disable hyper-threading/limit CPU cores. Encoding speed and stability depends on scaling of player window

See also

References

  1. ↑ "About the security content of QuickTime 7.7.6".
  2. ↑ https://developer.apple.com/library/mac/technotes/tn2300/_index.html
  3. ↑ "MacWorld – Mac 911 – Full screen for free". Retrieved January 27, 2007.
  4. ↑ "Apple – Support – Downloads – QuickTime 7.2 for Mac". Retrieved July 12, 2007.
  5. ↑ "Apple – QuickTime – QuickTime Pro". Retrieved January 10, 2007.
  6. ↑ "Apple – Mac OS X – Quartz Extreme". Archived from the original on August 21, 2006. Retrieved January 16, 2007.
  7. ↑ "Re: batch export : where is sorenson ?". Retrieved June 6, 2008.
  8. ↑ "Apple – QuickTime – QuickTime Player – Tech Specs". Archived from the original on July 24, 2008. Retrieved April 15, 2010.
  9. ↑ "Apple – QuickTime – MPEG-2 Playback". Retrieved April 15, 2010. QuickTime has the ability to play back MPEG-2 content via the QuickTime MPEG-2 Playback Component. It is available as an add-on to QuickTime 7 for $19.99 in the Apple Store online.
  10. ↑ "Common Internet file formats". Apple Support. Apple Inc. Retrieved January 24, 2011. Many of the multimedia file types listed below can be opened with QuickTime Player, Preview (Mac OS X) or PictureViewer (Mac OS 8, 9).
  11. ↑ "QuickTime for Windows 7.3 Help". Apple Support. Apple Inc. Retrieved January 24, 2011.
  12. ↑ Apple Inc. (2001). "Classic Version of the QuickTime File Format Specification". Retrieved June 14, 2009.
  13. ↑ Library of Congress (2001). "MPEG-4 File Format, Version 1". Retrieved June 14, 2009.
  14. ↑ Network Working Group (2006). "RFC 4337 – MIME Type Registration for MPEG-4". Retrieved June 14, 2009.
  15. ↑ International Organization for Standardization (2001). "MPEG-4 Part 1: Systems; ISO/IEC 14496-1:2001". Retrieved June 11, 2009.
  16. ↑ International Organization for Standardization (2003). "MPEG-4 Part 14: MP4 file format; ISO/IEC 14496-14:2003". Retrieved June 11, 2009.
  17. ↑ MP4REG – MP4 Registration authority. "References, MPEG-4 Registration authority". Retrieved June 14, 2009.
  18. ↑ International Organization for Standardization (April 2006). "ISO Base Media File Format white paper – Proposal". MPEG. Archived from the original on July 14, 2008. Retrieved December 26, 2009.
  19. ↑ International Organization for Standardization (October 2009). "ISO Base Media File Format white paper – Proposal". MPEG. Retrieved December 26, 2009.
  20. ↑ 20.0 20.1 International Organization for Standardization (2008). "ISO/IEC 14496-12:2008, Information technology – Coding of audio-visual objects – Part 12: ISO base media file format" (PDF). International Organization for Standardization. pp. 88, 94. Retrieved May 30, 2009.
  21. ↑ International Organization for Standardization (2004). "MPEG-4 Part 12: ISO base media file format; ISO/IEC 14496-12:2004". Retrieved June 11, 2009.
  22. ↑ "Apple – QuickTime – Technologies – MPEG-4". Archived from the original on January 11, 2007. Retrieved January 16, 2007.
  23. ↑ "QuickTime for Windows 7.0 Help". Retrieved June 8, 2007.
  24. ↑ DefilerPak – A lightweight codec pack for Windows PCs
  25. ↑ K-LiteCodecPack.com : Download Codecs, Videos and MP3s
  26. ↑ Apple – Movie Trailers
  27. ↑ Apple RPZA - MultimediaWiki. Wiki.multimedia.cx (December 11, 2008). Retrieved on August 23, 2013.
  28. ↑ "The Complete History of the Macworld Expo". Retrieved August 2, 2013.
  29. ↑ 29.0 29.1 "Timeline of QuickTime Updates at the Apple Museum". Retrieved January 8, 2007.
  30. ↑ "Apple – Developer – QuickTime – Technical Note TN1183". Retrieved January 8, 2007.
  31. ↑ "Apple – Developer – QuickTime – What's New in QuickTime". Retrieved January 8, 2007.
  32. ↑ "Apple – Developer – QuickTime – Technical Note TN1197". Retrieved January 8, 2007.
  33. ↑ "Apple – Developer – QuickTime – Summary of Changes and Enhancements for QuickTime 4.1". Retrieved January 8, 2007.
  34. ↑ "Timeline of QuickTime Updates at the Apple Museum". Retrieved January 6, 2007.
  35. ↑ "Apple – Developer – QuickTime 5 – Summary of Changes and Enhancements". Retrieved January 6, 2007.
  36. ↑ Apple (October 10, 2000) Apple Releases QuickTime 5 and QuickTime Streaming Server 3 Public Previews, retrieved on August 9, 2009
  37. ↑ Sorenson Media (July 2, 2001) Sorenson Media Announces the Availability of Sorenson Video 3 Exclusively for QuickTime, retrieved on August 9, 2009
  38. ↑ "Apple – QuickTime 6 – Summary of Changes and Enhancements". Retrieved January 8, 2007.
  39. ↑ "Apple – QuickTime 6.0.3 for Mac OS 8.6/9". Retrieved January 4, 2007.
  40. ↑ "Apple – QuickTime: About the QuickTime 6.1.1 Update". Retrieved January 8, 2007.
  41. ↑ "Apple – QuickTime for Windows: About the QuickTime 6.1 Update". Retrieved January 8, 2007.
  42. ↑ "Apple – QuickTime: About the QuickTime 6.2 Update". Retrieved January 8, 2007.
  43. ↑ "Apple – QuickTime: About QuickTime 6.3". Retrieved January 8, 2007.
  44. ↑ "Apple – Developer – What's New in QuickTime 6.4 For Mac OS X". Retrieved January 8, 2007.
  45. ↑ "Apple – Developer – What's New in QuickTime 6.5 For Mac OS X". Retrieved January 8, 2007.
  46. ↑ "ArsTechnica – Video in Tiger". Retrieved January 9, 2007.
  47. ↑ "Apple – Developer – QuickTime 7 Update Guide". Retrieved January 9, 2007.
  48. ↑ "Apple – Developer – QuickTime 7 Audio Enhancements". Retrieved January 9, 2007.
  49. ↑ "Apple Unveils Preview Release of QuickTime 7 for Windows". Retrieved June 1, 2007.
  50. ↑ "Apple – QuickTime – Download – QuickTime Version Availability". Archived from the original on May 25, 2007. Retrieved July 16, 2007.
  51. ↑ "Apple Releases Security Updates for QuickTime". Retrieved July 16, 2007.
  52. ↑ Apple – Support – Downloads – QuickTime 7.1.6 for Windows
  53. ↑ "About the security content of QuickTime 7.3.1". Apple Inc. December 13, 2007. Retrieved April 10, 2008.
  54. ↑ WWDC 2009: New in Mac OS X Snow Leopard — RoughlyDrafted Magazine
  55. ↑ QuickTime X leaps forward in Snow Leopard
  56. ↑ thumbnail images for chapters instead of only text
  57. ↑ trimming through a frame-based timeline akin to iMovie's
  58. ↑ allowing basic screencasting built-in
  59. ↑ OSX Leopard enhancements: QuickTime X
  60. ↑ "No MIDI Instruments in Quicktime X". Retrieved April 7, 2014.
  61. ↑ "Mac OS X 10.6 Snow Leopard: the Ars Technica review QuickTime X". Retrieved September 29, 2009.
  62. ↑ "Installing QuickTime Player 7 on Mac OS X v10.6 Snow Leopard". Apple Support. Apple Inc. May 6, 2010. Retrieved May 14, 2010.
  63. ↑ "QuickTime Player 7.6.6 for Mac OS X v10.6.3". Apple Support. Apple Inc. May 10, 2010. Retrieved May 14, 2010.
  64. ↑ QuickTime 2.5 at Apple FTP
  65. ↑ 65.0 65.1 QuickTime 4.0.3
  66. ↑ QuickTime 5.0.5
  67. ↑ QuickTime 6.0.3
  68. ↑ QuickTime 6.3.1
  69. ↑ QuickTime 6.5.3
  70. ↑ QuickTime 7.5 for Panther
  71. ↑ QuickTime 7.6.4 for Tiger
  72. ↑ QuickTime 7.7 for Leopard
  73. ↑ QuickTime X
  74. ↑ 74.0 74.1 74.2 74.3 74.4 QuickTime Player 7.6.6 (QuickTime version 7.7.1)
  75. ↑ Mac OS X 10.7 review
  76. ↑ QuickTime 2.1.2 (unofficial link)
  77. ↑ QuickTime 5.0.5
  78. ↑ QuickTime 6.1
  79. ↑ QuickTime 6.5.2
  80. ↑ 7.1.6
  81. ↑ Support Downloads
  82. ↑ "Using the QTKit Framework". Developer Connection. Apple Inc. September 18, 2008. Retrieved May 14, 2010.
  83. ↑ "Scripting the QuickTime COM/ActiveX object for Windows Developers.".
  84. ↑ Kramer, Andrew (January 18, 2008). "Beware of the new Quicktime 7.4". Video Copilot. Retrieved May 14, 2010.
  85. ↑ Dalrymple, Jim (January 25, 2008). "QuickTime 7.4 breaks After Effects and Premiere". Macworld. Retrieved May 14, 2010.
  86. ↑ Coleman, Michael (January 21, 2009). "Don't update to QuickTime 7.4". Adobe Systems Incorporated. Retrieved May 14, 2010.
  87. ↑ "QuickTime 7.4.1 fixes After Effects problem". Macworld.
  88. ↑ "Apple QuickTime RTSP Content-Type header stack buffer overflow.". Retrieved December 6, 2007.
  89. ↑ "CVE-2014-1251".
  90. ↑ "CVE-2014-1249".
  91. ↑ "CVE-2014-1248".
  92. ↑ "CVE-2014-1247".
  93. ↑ "CVE-2014-1246".
  94. ↑ "CVE-2014-1244".
  95. ↑ "CVE-2014-1250".
  96. ↑ "CVE-2014-1245".
  97. ↑ "CVE-2014-1243".
  98. ↑ "Quicktime 7.6 Fixes".
  99. ↑ "Using MEncoder to create QuickTime-compatible files".

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