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Add additional non-uniform/explicit tile details. #301

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Add additional non-uniform/explicit tile details. #301

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4 changes: 4 additions & 0 deletions 07.bitstream.semantics.md
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Expand Up @@ -2167,6 +2167,10 @@ for each tile down the image.

**maxTileHeightSb** specifies the maximum height (in units of superblocks) that can be used for a tile (to avoid making tiles with too much area).

**Note:** If uniform_tile_spacing_flag is equal to 0, the maximum height for a tile is calculated such that the widest tile has a maximum area of one half
the uniform tile area limit MAX_TILE_AREA. This is to compensate for difficult parallelization scaling for unbalanced tile sizing.
{:.alert .alert-info }

**context_update_tile_id** specifies which tile to use for the CDF update.
It is a requirement of bitstream conformance that context_update_tile_id is less than TileCols * TileRows.

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