31   // The spec computes the cdf value using the following formula (not writing  in PartitionCdfGatherHorizontalAlike()
33   //   cdf = None - H + V - S + S - HTS + HTS - HBS + HBS - VLS;  in PartitionCdfGatherHorizontalAlike()
35   //     cdf += VRS - H4;  in PartitionCdfGatherHorizontalAlike()
38   //   cdf = None - H + V - VLS;  in PartitionCdfGatherHorizontalAlike()
40   //     cdf += VRS - H4;  in PartitionCdfGatherHorizontalAlike()
42   uint16_t cdf = partition_cdf[kPartitionNone] -  in PartitionCdfGatherHorizontalAlike()  local
47     cdf += partition_cdf[kPartitionVerticalWithRightSplit] -  in PartitionCdfGatherHorizontalAlike()
50   return cdf;  in PartitionCdfGatherHorizontalAlike()
55   // The spec computes the cdf value using the following formula (not writing  in PartitionCdfGatherVerticalAlike()
57   //   cdf = H - V + V - S + HBS - VLS + VLS - VRS + S - HTS;  in PartitionCdfGatherVerticalAlike()
59   //     cdf += H4 - V4;  in PartitionCdfGatherVerticalAlike()
63   //   cdf = H + HBS - VRS - HTS;  in PartitionCdfGatherVerticalAlike()
65   //     cdf += H4;  in PartitionCdfGatherVerticalAlike()
68   //   cdf = H + HBS - HTS;  in PartitionCdfGatherVerticalAlike()
70   //     cdf += H4 - VRS;  in PartitionCdfGatherVerticalAlike()
72   uint16_t cdf = partition_cdf[kPartitionHorizontal] +  in PartitionCdfGatherVerticalAlike()  local
76     cdf += partition_cdf[kPartitionHorizontal4] -  in PartitionCdfGatherVerticalAlike()
79   return cdf;  in PartitionCdfGatherVerticalAlike()
135     const uint16_t cdf =  in ReadPartition()  local
137     *partition = reader_.ReadSymbolWithoutCdfUpdate(cdf) ? kPartitionSplit  in ReadPartition()
140     const uint16_t cdf =  in ReadPartition()  local
142     *partition = reader_.ReadSymbolWithoutCdfUpdate(cdf) ? kPartitionSplit  in ReadPartition()