Constant libaom_sys::AV1E_SET_TILE_COLUMNS

pub const AV1E_SET_TILE_COLUMNS: aome_enc_control_id = 33;

Codec control function to set number of tile columns. unsigned int parameter

In encoding and decoding, AV1 allows an input image frame be partitioned into separate vertical tile columns, which can be encoded or decoded independently. This enables easy implementation of parallel encoding and decoding. The parameter for this control describes the number of tile columns (in log2 units), which has a valid range of [0, 6]: \verbatim 0 = 1 tile column 1 = 2 tile columns 2 = 4 tile columns ..... n = 2**n tile columns \endverbatim By default, the value is 0, i.e. one single column tile for entire image.