MpegEncContext s;
int8_t *intra_types_hist;///< old block types, used for prediction
int8_t *intra_types; ///< block types
+ int intra_types_stride;///< block types array stride
const uint8_t *luma_dc_quant_i;///< luma subblock DC quantizer for intraframes
const uint8_t *luma_dc_quant_p;///< luma subblock DC quantizer for interframes