/
fdd000086.xml
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fdd000086.xml
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<?xml version="1.0" encoding="UTF-8"?>
<fdd:FDD id="fdd000086" titleName="QuickTime Video, Apple Codec" shortName="QTV_Apple" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:fdd="http://www.loc.gov/preservation/digital/formats/schemas/fdd/v1" xsi:schemaLocation="http://www.loc.gov/preservation/digital/formats/schemas/fdd/v1 http://www.loc.gov/preservation/digital/formats/schemas/fdd/v1/fdd-v1-1.xsd">
<fdd:properties>
<fdd:gdfrGenreSelection>
<fdd:gdfrGenre>moving-image</fdd:gdfrGenre>
</fdd:gdfrGenreSelection>
<fdd:formatCategories>
<fdd:category>file-format</fdd:category>
<fdd:category>encoding</fdd:category>
</fdd:formatCategories>
<fdd:gdfrComposition>unitary</fdd:gdfrComposition>
<fdd:gdfrForm>binary</fdd:gdfrForm>
<fdd:gdfrBasis>sampled</fdd:gdfrBasis>
<fdd:updates>
<fdd:date>2011-03-14</fdd:date>
</fdd:updates>
<fdd:draftStatus>Full</fdd:draftStatus>
</fdd:properties>
<fdd:identificationAndDescription>
<fdd:fullName>QuickTime, Apple Video Codec</fdd:fullName>
<fdd:keywords>
<fdd:keyword>video formats</fdd:keyword>
<fdd:keyword>QuickTime</fdd:keyword>
</fdd:keywords>
<fdd:description>QuickTime file format that wraps an Apple video bitstream with other data chunks, e.g., audio. Apple video encoding is part of QuickTime production software.</fdd:description>
<fdd:shortDescription>QuickTime wrapper with Apple video bitstream and other data chunks, e.g., audio. Apple video encoding is part of QuickTime production software.</fdd:shortDescription>
<fdd:productionPhase>Used as a final-state format for enduser delivery; may also be used as a middle-state format, e.g., as the video source when producing lower-resolution streaming versions. </fdd:productionPhase>
<fdd:relationships>
<fdd:relationship>
<fdd:typeOfRelationship>Subtype of</fdd:typeOfRelationship>
<fdd:relatedTo>
<fdd:id>fdd000052</fdd:id>
<fdd:shortName>QuickTime</fdd:shortName>
<fdd:titleName>QuickTime File Format</fdd:titleName>
</fdd:relatedTo>
</fdd:relationship>
<fdd:relationship>
<fdd:typeOfRelationship>Contains</fdd:typeOfRelationship>
<fdd:comment>Apple video codec, not separately documented</fdd:comment>
</fdd:relationship>
<fdd:relationship>
<fdd:typeOfRelationship>May contain</fdd:typeOfRelationship>
<fdd:comment>Audio streams not documented at this time.</fdd:comment>
</fdd:relationship>
</fdd:relationships>
</fdd:identificationAndDescription>
<fdd:localUse>
<fdd:experience>See <fddLink id="fdd000052">QuickTime</fddLink>
</fdd:experience>
<fdd:preference>See <fddLink id="fdd000052">QuickTime</fddLink>
</fdd:preference>
</fdd:localUse>
<fdd:sustainabilityFactors>
<fdd:disclosure>
See <fddLink id="fdd000052">QuickTime</fddLink>
</fdd:disclosure>
<fdd:documentation>
See <fddLink id="fdd000052">QuickTime</fddLink>
</fdd:documentation>
<fdd:adoption>
Appears to be widely adopted for video filemaking.
</fdd:adoption>
<fdd:licensingAndPatents>
See <fddLink id="fdd000052">QuickTime</fddLink>
</fdd:licensingAndPatents>
<fdd:transparency>
Depends upon algorithms and tools to read; will require sophistication to build tools.
</fdd:transparency>
<fdd:selfDocumentation>
See <fddLink id="fdd000052">QuickTime</fddLink>
</fdd:selfDocumentation>
<fdd:externalDependencies>
See <fddLink id="fdd000052">QuickTime</fddLink>
</fdd:externalDependencies>
<fdd:techProtection>
See <fddLink id="fdd000052">QuickTime</fddLink>
</fdd:techProtection>
</fdd:sustainabilityFactors>
<fdd:qualityAndFunctionalityFactors>
<fdd:movingImageQF>
<fdd:normalVideo>Good support.</fdd:normalVideo>
<fdd:clarity>Moderate, given that this is a format typically used for compression and does not support interlaced video. Outcome will depend on the type and extent of compression, and the encoder used. Several commentators state that the quality of <fddLink id="fdd000088">QTV_Sorenson</fddLink> surpasses that of QTV_Cinepak, at the same bitrate. At higher bitrates, <fddLink id="fdd000089">QTV_MJPEG</fddLink> is likely to provide the highest quality of the QuickTime codecs described at this web site.</fdd:clarity>
<fdd:beyondVideo>See <fddLink id="fdd000052">QuickTime</fddLink>.</fdd:beyondVideo>
</fdd:movingImageQF>
</fdd:qualityAndFunctionalityFactors>
<fdd:fileTypeSignifiers>
<fdd:signifiersGroup>
<fdd:filenameExtension>
<fdd:sigValues>
<fdd:sigValue>mov</fdd:sigValue>
</fdd:sigValues>
</fdd:filenameExtension>
<fdd:internetMediaType>
<fdd:sigValueNA>See related format.</fdd:sigValueNA>
<fdd:note>
<p>See <fddLink id="fdd000052">QuickTime</fddLink>
</p>
</fdd:note>
</fdd:internetMediaType>
<fdd:magicNumbers>
<fdd:sigValueNA>See related format.</fdd:sigValueNA>
<fdd:note>
<p>See <fddLink id="fdd000052">QuickTime</fddLink>
</p>
</fdd:note>
</fdd:magicNumbers>
<fdd:other>
<fdd:tag>Apple Video Sample Description</fdd:tag>
<fdd:values>
<fdd:sigValues>
<fdd:sigValue>rpza</fdd:sigValue>
</fdd:sigValues>
<fdd:note>Four-character code identifying the Apple Video codec, from <a href="https://developer.apple.com/standards/classic-quicktime/">QuickTime File Format</a>, p. 92 or p96.<footNote id="1"/>
</fdd:note>
</fdd:values>
</fdd:other>
</fdd:signifiersGroup>
</fdd:fileTypeSignifiers>
<fdd:usefulReferences>
<fdd:urls>
<fdd:url>
<fdd:urlGroup>
<fdd:intro>See <fddLink id="fdd000052">QuickTime</fddLink>.</fdd:intro>
</fdd:urlGroup>
</fdd:url>
</fdd:urls>
</fdd:usefulReferences>
<fdd:footNotes>
<fdd:footNote id="1">
<fdd:text>There seem to have been at least two printings of the specification carrying the same date. These were not systematically compared by the compiler of this Web page. Pagination varies between these two printings.</fdd:text>
</fdd:footNote>
</fdd:footNotes>
</fdd:FDD>