+static const uint8_t prores_dc_codebook[4] = {
+ 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0
+ 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0
+ 0x4D, // rice_order = 2, exp_golomb_order = 3, switch_bits = 1
+ 0x70 // rice_order = 3, exp_golomb_order = 4, switch_bits = 0
+};
+
+static const uint8_t prores_ac_codebook[7] = {
+ 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0
+ 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0
+ 0x4C, // rice_order = 2, exp_golomb_order = 3, switch_bits = 0
+ 0x05, // rice_order = 0, exp_golomb_order = 1, switch_bits = 1
+ 0x29, // rice_order = 1, exp_golomb_order = 2, switch_bits = 1
+ 0x06, // rice_order = 0, exp_golomb_order = 1, switch_bits = 2
+ 0x0A, // rice_order = 0, exp_golomb_order = 2, switch_bits = 2
+};
+
+/**
+ * Lookup tables for adaptive switching between codebooks
+ * according with previous run/level value.
+ */
+static const uint8_t prores_run_to_cb_index[16] =
+ { 5, 5, 3, 3, 0, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 2 };
+
+static const uint8_t prores_lev_to_cb_index[10] = { 0, 6, 3, 5, 0, 1, 1, 1, 1, 2 };
+