High Efficiency Video Coding tiers and levels: Difference between revisions

Revision as of 03:19, 28 November 2012

Revision as of 04:04, 28 November 2012

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!rowspan="2"| Example picture resolution @<br>highest frame rate{{Ref label|MaxFrameRate|A|A}}<br>(MaxDpbSize{{Ref label|MaxDpbSize|B|B}})

!rowspan="2"| MinCR{{Ref label|MinCR|C|C}}

!rowspan="2"| Max number<br>of slicesslice<br>segments<br>per picture{{Ref label|Slices|D|D}}

!colspan="2"| Max number of tile{{Ref label|Tiles|E|E}}

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! Main tier

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:{{note label|MaxDpbSize|B|B}} The MaxDpbSize, maximum number of decoded picture buffers, for the maximum luma picture size of that level is 6 for all levels.<ref name=OverviewHEVCIEEE2012/><ref name=HEVCdraft9/> The MaxDpbSize can increase to a maximum of 16 frames if the luma picture size of the video is smaller than the maximum luma picture size of that level in incremental steps of 4/3×, 2×, or 4×.<ref name=OverviewHEVCIEEE2012/><ref name=HEVCdraft9/>

:{{note label|MinCR|C|C}} The MinCR, minimum compression ratio, for that level.<ref name=HEVCdraft9/>

:{{note label|Slices|D|D}} The maximum number of slice segments is the number of slices allowed per picture at both the maximum resolution and maximum frame rate.<ref name=HEVCdraft9/><ref name=HEVCOctober2012K0201>{{cite news |title=AHG9: on number of slices constraint |author=Minhua Zhou |publisher=JCT-VC |url=http://phenix.it-sudparis.eu/jct/doc_end_user/current_document.php?id=6572 |date=2012-10-01 |accessdate=2012-11-27}}</ref>

:{{note label|Tiles|E|E}} The maximum number of tiles allowed per picture.<ref name=HEVCdraft9/> The maximum number of tiles allowed per second is the maximum number of tiles allowed per picture times 120.<ref name=HEVCdraft9/><ref name=HEVCOctober2012K0202>{{cite news |title=AHG9: on number of tiles constraint |author=Minhua Zhou |publisher=JCT-VC |url=http://phenix.it-sudparis.eu/jct/doc_end_user/current_document.php?id=6573 |date=2012-10-01 |accessdate=2012-11-27}}</ref>

==See also==