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<title>QuickTime Graphics</title>

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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">QuickTime Graphics</span></span>

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</style><div role="note" class="hatnote navigation-not-searchable">"Apple SMC" redirects here. For the SMC used in Intel-based Macintosh computers, see <a href="System_Management_Controller" title="System Management Controller">System Management Controller</a>.</div>

<p><b>QuickTime Graphics</b> is a <a href="Lossy" class="mw-redirect" title="Lossy">lossy</a> video compression and decompression algorithm (<a href="Codec" title="Codec">codec</a>) developed by <a href="Apple_Inc." title="Apple Inc.">Apple Inc.</a> and first released as part of <a href="QuickTime#QuickTime_1.x" title="QuickTime">QuickTime 1.x</a> in the early 1990s.<sup id="cite_ref-multimediawiki_1-0" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The codec is also known by the name <b>Apple Graphics</b> and its <a href="FourCC" title="FourCC">FourCC</a> <b>SMC</b>.<sup id="cite_ref-ffmpeg_2-0" class="reference"><a href="#cite_note-ffmpeg-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-multimediawiki_1-1" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The codec operates on 8-bit palettized <a href="RGB" class="mw-redirect" title="RGB">RGB</a> data.<sup id="cite_ref-multimediawiki_1-2" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The bit-stream format of QuickTime Graphics has been reverse-engineered and a decoder has been implemented in the projects XAnim and <a href="Libavcodec" title="Libavcodec">libavcodec</a>.<sup id="cite_ref-xanim_3-0" class="reference"><a href="#cite_note-xanim-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-ffmpeg_2-1" class="reference"><a href="#cite_note-ffmpeg-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

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<div class="mw-heading mw-heading2"><h2 id="Technical_Details">Technical Details</h2></div>

<p>The input video that the codec operates on is in an 8-bit <a href="Palette_(computing)" title="Palette (computing)">palettized</a> <a href="RGB" class="mw-redirect" title="RGB">RGB</a> colorspace. Compression is achieved by conditional replenishment and by reducing the palette from 256 colors to a per-4×4 block adaptive palette of 1-16 colors. Because Apple Video operates in the image domain without motion compensation, decoding is much faster than <a href="MPEG" class="mw-redirect" title="MPEG">MPEG</a>-style codecs which use <a href="Motion_compensation#Block_motion_compensation" title="Motion compensation">motion compensation</a> and perform coding in a <a href="Transform_coding#Digital" title="Transform coding">transform</a> domain. As a tradeoff, the compression performance of Apple Graphics is lower. The decoding complexity is approximately 50% that of the <a href="QuickTime_Animation" title="QuickTime Animation">QuickTime Animation</a> codec.<sup id="cite_ref-QtGuide_4-0" class="reference"><a href="#cite_note-QtGuide-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>

</p><p>Each frame is segmented into 4×4 blocks in raster-scan order. Each block can be coded in one of the following coding modes: skip mode, single color, 2-, 4-, and 8 color palette modes, two repeat modes, and PCM.

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<p>The skip mode realizes conditional replenishment. If a block is coded in skip mode, the content of the block at same location in the previous frame is copied to the current frame.<sup id="cite_ref-multimediawiki_1-3" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Runs of skip blocks are coded in a <a href="Run-length_encoding" title="Run-length encoding">run-length encoding</a> scheme, enabling a high compression ratio in static areas of the picture.<sup id="cite_ref-multimediawiki_1-4" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>

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<div class="mw-heading mw-heading3"><h3 id="Single_color">Single color</h3></div>

<p>In single color mode, the entire 4×4 block is painted with a single color.<sup id="cite_ref-multimediawiki_1-5" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> This mode can also be considered as a 1-color palette mode.

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<div class="mw-heading mw-heading3"><h3 id="Palette_(2,_4,_or_8-color)_modes">Palette (2, 4, or 8-color) modes</h3></div>

<p>In the palette modes, each 4×4 block is coded with a 2, 4, or 8-color palette.<sup id="cite_ref-multimediawiki_1-6" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> To select one of the colors from the palette, 1, 2, or 3 bits per pixel are used, respectively. The palette can be written to the bitstream either explicitly or as a reference to an entry in the palette cache.<sup id="cite_ref-multimediawiki_1-7" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The palette cache is a set of three circular buffers which store the 256 most recently used palettes, one each for of the 2, 4, and 8-color modes.<sup id="cite_ref-multimediawiki_1-8" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>

</p><p>Interpreted as <a href="Vector_quantization" title="Vector quantization">vector quantization</a>, three-dimensional vectors with components red, green, and blue are <a href="Color_quantization" title="Color quantization">quantized</a> using a forward adaptive codebook with between 1 and 8 entries.

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<div class="mw-heading mw-heading3"><h3 id="Repeat_modes">Repeat modes</h3></div>

<p>There are two different repeat modes.<sup id="cite_ref-multimediawiki_1-9" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> In the single block repeat mode, the previous block is repeated a specified number of times.<sup id="cite_ref-multimediawiki_1-10" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> In the two block repeat mode, the previous two blocks are repeated a specified number of times.<sup id="cite_ref-multimediawiki_1-11" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>

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<div class="mw-heading mw-heading3"><h3 id="PCM_(16_color)_mode">PCM (16 color) mode</h3></div>

<p>In 16-color mode, the color of each pixel in a block is explicitly written to the bit-stream.<sup id="cite_ref-multimediawiki_1-12" class="reference"><a href="#cite_note-multimediawiki-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> This mode is lossless and equivalent to raw <a href="Pulse-code_modulation" title="Pulse-code modulation">PCM</a> without any compression.

</p>

<ul><li><a href="Indexed_color" title="Indexed color">Indexed color</a></li>

<li><a href="Color_quantization" title="Color quantization">Color quantization</a></li>

<li><a href="Block_truncation_coding" class="mw-redirect" title="Block truncation coding">Block truncation coding</a>, a similar coding technique for grayscale content</li>

<li><a href="Color_Cell_Compression" title="Color Cell Compression">Color Cell Compression</a>, a similar coding technique for color content, based on block truncation coding</li>

<li><a href="Apple_Video" title="Apple Video">Apple Video</a>, a codec based on a similar design</li>

<li><a href="Microsoft_Video_1" title="Microsoft Video 1">Microsoft Video 1</a>, a codec based on a similar design</li>

<li><a href="Smacker_video" title="Smacker video">Smacker video</a>, a codec based on a similar design</li>

<li><a href="S3_Texture_Compression" title="S3 Texture Compression">S3 Texture Compression</a>, a texture compression format based on a similar design</li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://wiki.multimedia.cx/index.php?title=Apple_SMC">"Apple SMC"</a>. <i>MultimediaWiki</i>. 26 April 2011. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20130515163022/http://wiki.multimedia.cx/index.php?title=Apple_SMC">Archived</a> from the original on 15 May 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">4 May</span> 2013</span>.</cite></span>

</li>

<li id="cite_note-ffmpeg-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-ffmpeg_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-ffmpeg_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://ffmpeg.org/general.html">"FFmpeg Documentation"</a>. <i>FFmpeg</i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20140629194528/http://ffmpeg.org/general.html">Archived</a> from the original on 29 June 2014<span class="reference-accessdate">. Retrieved <span class="nowrap">4 May</span> 2013</span>.</cite></span>

</li>

<li id="cite_note-xanim-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-xanim_3-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFMark_Podlipec1997" class="citation web cs1">Mark Podlipec (10 December 1997). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20151228114941/http://www.math.unl.edu/~rdieter1/OpenStep/X11/xanim.2.70.6.4.2.README">"xanim.2.70.6.4.2 README"</a>. <i>XAnim</i>. Archived from <a rel="nofollow" class="external text" href="http://www.math.unl.edu/~rdieter1/OpenStep/X11/xanim.2.70.6.4.2.README">the original</a> on 28 December 2015<span class="reference-accessdate">. Retrieved <span class="nowrap">4 May</span> 2013</span>.</cite></span>

</li>

<li id="cite_note-QtGuide-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-QtGuide_4-0">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://developer.apple.com/legacy/library/documentation/QuickTime/Rm/CompressDecompress/ImageComprMgr/ImageComprMgr.pdf">"QuickTime Compression and Decompression Guide"</a> <span class="cs1-format">(PDF)</span>. Apple Computer, Inc. 10 January 2006<span class="reference-accessdate">. Retrieved <span class="nowrap">4 May</span> 2013</span>.</cite></span>

</li>

</ol></div></div>

<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

<ul><li><a rel="nofollow" class="external text" href="http://git.videolan.org/?p=ffmpeg.git;a=blob;f=libavcodec/smc.c;hb=HEAD">QuickTime Graphics decoder - FFmpeg</a></li></ul>

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</style><div id="Multimedia_compression_and_container_formats462" style="font-size:114%;margin:0 4em"><a href="Multimedia" title="Multimedia">Multimedia</a> <a href="Data_compression" title="Data compression">compression</a> and <a href="Container_format_(computing)" class="mw-redirect" title="Container format (computing)">container</a> formats</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Video_coding_format" title="Video coding format">Video<br>compression</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a>, <br><a href="Moving_Picture_Experts_Group" title="Moving Picture Experts Group">MPEG</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em">

<li><a href="Motion_JPEG" title="Motion JPEG">MJPEG</a></li>

<li><a href="Motion_JPEG_2000" title="Motion JPEG 2000">Motion JPEG 2000</a></li>

<li>MPEG-I

<li><a href="LCEVC" title="LCEVC">Part 2 / LCEVC</a></li></ul></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="ITU-T" title="ITU-T">ITU-T</a>, <a href="Video_Coding_Experts_Group" title="Video Coding Experts Group">VCEG</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em">

<li>H.267 / Enhanced Compression Model</li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="Society_of_Motion_Picture_and_Television_Engineers" title="Society of Motion Picture and Television Engineers">SMPTE</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em">

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="On2_Technologies" title="On2 Technologies">TrueMotion</a> and AOMedia</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em">

<ul><li><a href="On2_Technologies#TrueMotion_S" title="On2 Technologies">TrueMotion S</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Chinese Standard</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em">

<li><a href="Audio_Video_Standard#Second_generation" title="Audio Video Standard">AVS2 P2</a>(GB/T 33475.2,GY/T 299.1)

<ul><li>HDR Vivid(GY/T 358)</li></ul></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Apple_Video" title="Apple Video">Apple Video</a></li>

<li><a href="Cinepak" title="Cinepak">Cinepak</a></li>

<li><a href="Daala" title="Daala">Daala</a></li>

<li><a href="Huffyuv" title="Huffyuv">Huffyuv</a></li>

<li><a href="Indeo" title="Indeo">Indeo</a></li>

<li><a href="Lagarith" title="Lagarith">Lagarith</a></li>

<li><a href="Microsoft_Video_1" title="Microsoft Video 1">Microsoft Video 1</a></li>

<li><a href="MSU_Lossless_Video_Codec" title="MSU Lossless Video Codec">MSU Lossless</a></li>

<li><a href="OMS_Video" title="OMS Video">OMS Video</a></li>

<li><a href="Pixlet" title="Pixlet">Pixlet</a></li>

<li><a href="Apple_ProRes" title="Apple ProRes">ProRes</a>

<li>QuickTime

<ul><li><a href="QuickTime_Animation" title="QuickTime Animation">Animation</a></li>

</ul></li>

<li><a href="RealVideo" title="RealVideo">RealVideo</a></li>

<li><a href="RTVideo" title="RTVideo">RTVideo</a></li>

<li><a href="SheerVideo" title="SheerVideo">SheerVideo</a></li>

<li><a href="Smacker_video" title="Smacker video">Smacker</a></li>

<li><a href="Sorenson_Media" title="Sorenson Media">Sorenson Video/Spark</a></li>

<li><a href="Theora" title="Theora">Theora</a></li>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Audio_coding_format" title="Audio coding format">Audio<br>compression</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a>,<br> <a href="Moving_Picture_Experts_Group" title="Moving Picture Experts Group">MPEG</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em">

<ul><li><a href="MPEG-1_Audio_Layer_II" title="MPEG-1 Audio Layer II">MPEG-1 Layer II</a>

<ul><li><a href="MPEG_Multichannel" title="MPEG Multichannel">Multichannel</a></li></ul></li>

<li><a href="MPEG-1_Audio_Layer_I" title="MPEG-1 Audio Layer I">MPEG-1 Layer I</a></li>

<li><a href="MP3" title="MP3">MPEG-1 Layer III (MP3)</a></li>

<li><a href="MPEG_Surround" title="MPEG Surround">MPEG Surround</a></li>

<li><a href="MPEG-H_3D_Audio" title="MPEG-H 3D Audio">MPEG-H 3D Audio</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="ITU-T" title="ITU-T">ITU-T</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em">

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em">

<li><a href="Speex" title="Speex">Speex</a></li>

<li><a href="Vorbis" title="Vorbis">Vorbis</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="3GPP" title="3GPP">3GPP</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em">

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="ETSI" class="mw-redirect" title="ETSI">ETSI</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em">

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="Bluetooth_Special_Interest_Group" title="Bluetooth Special Interest Group">Bluetooth SIG</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em">

<li><a href="Audio_Video_Standard#Second_generation" title="Audio Video Standard">AVS2 P3</a>(GB/T 33475.3)

<ul><li>Audio Vivid(GY/T 363)</li></ul></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Algebraic_code-excited_linear_prediction" title="Algebraic code-excited linear prediction">ACELP</a></li>

<li><a href="Adaptive_Transform_Acoustic_Coding" class="mw-redirect" title="Adaptive Transform Acoustic Coding">ATRAC</a></li>

<li><a href="Codec_2" title="Codec 2">Codec 2</a></li>

<li><a href="Monkey's_Audio" title="Monkey's Audio">Monkey's Audio</a></li>

<li><a href="Musepack" title="Musepack">Musepack</a></li>

<li><a href="OptimFROG" title="OptimFROG">OptimFROG</a></li>

<li><a href="Qualcomm_code-excited_linear_prediction" title="Qualcomm code-excited linear prediction">QCELP</a></li>

<li><a href="Relaxed_code-excited_linear_prediction" title="Relaxed code-excited linear prediction">RCELP</a></li>

<li><a href="RealAudio" title="RealAudio">RealAudio</a></li>

<li><a href="Siren_(codec)" title="Siren (codec)">Siren</a></li>

<li><a href="SVOPC" title="SVOPC">SVOPC</a></li>

<li>TTA

<ul><li>True Audio</li></ul></li>

<li><a href="TwinVQ" title="TwinVQ">TwinVQ</a></li>

<li><a href="Vector_sum_excited_linear_prediction" title="Vector sum excited linear prediction">VSELP</a></li>

<li><a href="WavPack" title="WavPack">WavPack</a></li>

<li><a href="AptX#aptX_Low_Latency" title="AptX">aptX Low Latency</a></li>

<li><a href="AptX#aptX_Adaptive" title="AptX">aptX Adaptive</a></li>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Image_compression" title="Image compression">Image<br>compression</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a>, <a href="International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a>, <br><a href="World_Wide_Web_Consortium" title="World Wide Web Consortium">W3C</a>, <a href="ITU-T" title="ITU-T">ITU-T</a>, <a href="Joint_Photographic_Experts_Group" title="Joint Photographic Experts Group">JPEG</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Group_4_compression" title="Group 4 compression">CCITT Group 4</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em">

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Digital_container_format" class="mw-redirect" title="Digital container format">Containers</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em">

<li><a href="ISO/IEC_base_media_file_format" class="mw-redirect" title="ISO/IEC base media file format">ISO/IEC base media file format</a></li>

<li><a href="Motion_JPEG_2000" title="Motion JPEG 2000">Motion JPEG 2000</a></li>

<li><a href="MPEG_media_transport" title="MPEG media transport">MPEG media transport</a></li></ul>

<li><a href="Matroska" title="Matroska">Matroska</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="Society_of_Motion_Picture_and_Television_Engineers" title="Society of Motion Picture and Television Engineers">SMPTE</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em">

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Smacker_video" title="Smacker video">Smacker</a></li></ul></li>

<li><a href="DivX#DivX_Media_Format_(DMF)" title="DivX">DivX Media Format</a></li>

<li><a href="Flash_Video" title="Flash Video">Flash Video</a></li>

<li><a href="Matroska" title="Matroska">Matroska</a>

<li><a href="QuickTime_File_Format" title="QuickTime File Format">QuickTime File Format</a></li>

<li><a href="RatDVD" title="RatDVD">RatDVD</a></li>

<li><a href="RealMedia" title="RealMedia">RealMedia</a></li>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Collaborations</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="NETVC" title="NETVC">NETVC</a></li>

<li><a href="Alliance_for_Open_Media" title="Alliance for Open Media">Alliance for Open Media</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Data_compression" title="Data compression">Methods</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Entropy_encoding" class="mw-redirect" title="Entropy encoding">Entropy</a>

<ul><li><a href="Arithmetic_coding" title="Arithmetic coding">Arithmetic</a></li>

<li><a href="Huffman_coding" title="Huffman coding">Huffman</a></li>

<li><a href="Modified_Huffman_coding" title="Modified Huffman coding">Modified</a></li></ul></li>

<ul><li><a href="Algebraic_code-excited_linear_prediction" title="Algebraic code-excited linear prediction">ACELP</a></li>

<li><a href="Lossless_compression" title="Lossless compression">Lossless</a></li>

<li><a href="Lossy_compression" title="Lossy compression">Lossy</a></li>

<ul><li><a href="DEFLATE" class="mw-redirect" title="DEFLATE">DEFLATE</a></li>

<li><a href="Adaptive_differential_pulse-code_modulation" title="Adaptive differential pulse-code modulation">ADPCM</a></li>

<li><a href="Transform_coding" title="Transform coding">Transforms</a>

<li><a href="Wavelet" title="Wavelet">Wavelet</a>

<ul><li><a href="Daubechies_wavelet" title="Daubechies wavelet">Daubechies</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Lists</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Comparison_of_audio_coding_formats" title="Comparison of audio coding formats">Comparison of audio coding formats</a></li>

<li><a href="Comparison_of_video_codecs" title="Comparison of video codecs">Comparison of video codecs</a></li>

<li><a href="List_of_codecs" title="List of codecs">List of codecs</a></li></ul>

</div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>See Compression methods for techniques and Compression software for codecs</div></td></tr></tbody></table></div> </div><div><div class="zim-footer">

This article is issued from <a class="external text" title="Last edited on 2024-06-26" href="https://en.wikipedia.org/wiki/?title=QuickTime_Graphics&oldid=1231148218">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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