1. A method of decoding video data comprising: receiving a stream of encoded bits; extracting a set of syntax elements from the encoded bits, the set of syntax elements comprising: an array location of a last significant coefficient in a block of transform coefficients; a significance map for the block of transform coefficients, the significance map representing the block of transform coefficients diagonally scanned in a fixed direction; and a series of additional syntax elements representing values of significant transform coefficients diagonally scanned in fixed direction; generating the block of transform coefficients using the extracted syntax elements; and performing an inverse transform using the block of transform coefficients to generate picture data.