+typedef enum {
+ VP56_FRAME_NONE =-1,
+ VP56_FRAME_CURRENT = 0,
+ VP56_FRAME_PREVIOUS = 1,
+ VP56_FRAME_GOLDEN = 2,
+ VP56_FRAME_GOLDEN2 = 3,
+} VP56Frame;
+
+typedef enum {
+ VP56_MB_INTER_NOVEC_PF = 0, /**< Inter MB, no vector, from previous frame */
+ VP56_MB_INTRA = 1, /**< Intra MB */
+ VP56_MB_INTER_DELTA_PF = 2, /**< Inter MB, above/left vector + delta, from previous frame */
+ VP56_MB_INTER_V1_PF = 3, /**< Inter MB, first vector, from previous frame */
+ VP56_MB_INTER_V2_PF = 4, /**< Inter MB, second vector, from previous frame */
+ VP56_MB_INTER_NOVEC_GF = 5, /**< Inter MB, no vector, from golden frame */
+ VP56_MB_INTER_DELTA_GF = 6, /**< Inter MB, above/left vector + delta, from golden frame */
+ VP56_MB_INTER_4V = 7, /**< Inter MB, 4 vectors, from previous frame */
+ VP56_MB_INTER_V1_GF = 8, /**< Inter MB, first vector, from golden frame */
+ VP56_MB_INTER_V2_GF = 9, /**< Inter MB, second vector, from golden frame */
+} VP56mb;
+
+typedef struct VP56Tree {
+ int8_t val;
+ int8_t prob_idx;
+} VP56Tree;
+
+typedef struct VP56mv {
+ DECLARE_ALIGNED(4, int16_t, x);