On2 VP7 decoder

Signed-off-by: Peter Ross <pross@xvid.org>
Reviewed-by: BBB
previous patch reviewed by jason
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 136 insertions, 2 deletions

diff --git a/libavcodec/vp8data.h b/libavcodec/vp8data.h
index 0ea24d7ed8..a7923296c6 100644
--- a/libavcodec/vp8data.h
+++ b/libavcodec/vp8data.h
@@ -30,6 +30,14 @@
 #include "vp8.h"
 #include "h264pred.h"
 
+static const uint8_t vp7_pred4x4_mode[] =
+{
+    [DC_PRED8x8]    = DC_PRED,
+    [VERT_PRED8x8]  = TM_VP8_PRED,
+    [HOR_PRED8x8]   = TM_VP8_PRED,
+    [PLANE_PRED8x8] = TM_VP8_PRED,
+};
+
 static const uint8_t vp8_pred4x4_mode[] =
 {
     [DC_PRED8x8]    = DC_PRED,
@@ -54,6 +62,63 @@ static const int8_t vp8_pred16x16_tree_inter[4][2] =
       { -PLANE_PRED8x8, -MODE_I4x4 },       // '110', '111'
 };
 
+typedef struct {
+    int8_t  yoffset;
+    int8_t  xoffset;
+    uint8_t subblock;
+    uint8_t score;
+} VP7MVPred;
+
+#define VP7_MV_PRED_COUNT 12
+static const VP7MVPred vp7_mv_pred[VP7_MV_PRED_COUNT] = {
+    { -1,  0, 12, 8 },
+    {  0, -1,  3, 8 },
+    { -1, -1, 15, 2 },
+    { -1,  1, 12, 2 },
+    { -2,  0, 12, 2 },
+    {  0, -2,  3, 2 },
+    { -1, -2, 15, 1 },
+    { -2, -1, 15, 1 },
+    { -2,  1, 12, 1 },
+    { -1,  2, 12, 1 },
+    { -2, -2, 15, 1 },
+    { -2,  2, 12, 1 },
+};
+
+static const int vp7_mode_contexts[31][4] = {
+    {   3,   3,   1, 246 },
+    {   7,  89,  66, 239 },
+    {  10,  90,  78, 238 },
+    {  14, 118,  95, 241 },
+    {  14, 123, 106, 238 },
+    {  20, 140, 109, 240 },
+    {  13, 155, 103, 238 },
+    {  21, 158,  99, 240 },
+    {  27,  82, 108, 232 },
+    {  19,  99, 123, 217 },
+    {  45, 139, 148, 236 },
+    {  50, 117, 144, 235 },
+    {  57, 128, 164, 238 },
+    {  69, 139, 171, 239 },
+    {  74, 154, 179, 238 },
+    { 112, 165, 186, 242 },
+    {  98, 143, 185, 245 },
+    { 105, 153, 190, 250 },
+    { 124, 167, 192, 245 },
+    { 131, 186, 203, 246 },
+    {  59, 184, 222, 224 },
+    { 148, 215, 214, 213 },
+    { 137, 211, 210, 219 },
+    { 190, 227, 128, 228 },
+    { 183, 228, 128, 228 },
+    { 194, 234, 128, 228 },
+    { 202, 236, 128, 228 },
+    { 205, 240, 128, 228 },
+    { 205, 244, 128, 228 },
+    { 225, 246, 128, 228 },
+    { 233, 251, 128, 228 },
+};
+
 static const int vp8_mode_contexts[6][4] = {
     {   7,   1,   1, 143 },
     {  14,  18,  14, 107 },
@@ -85,6 +150,8 @@ static const uint8_t vp8_mbfirstidx[4][16] = {
 static const uint8_t vp8_mbsplit_count[4] = {   2,   2,   4,  16 };
 static const uint8_t vp8_mbsplit_prob[3]  = { 110, 111, 150 };
 
+static const uint8_t vp7_submv_prob[3] = { 180, 162, 25 };
+
 static const uint8_t vp8_submv_prob[5][3] = {
     { 147, 136,  18 },
     { 106, 145,   1 },
@@ -670,11 +737,22 @@ static const uint8_t vp8_mv_update_prob[2][19] = {
     { 237,
       246,
       253, 253, 254, 254, 254, 254, 254,
-      254, 254, 254, 254, 254, 250, 250, 252, 254, 254 },
+      254, 254, 254, 254, 254, 250, 250, 252, /* VP8 only: */ 254, 254 },
     { 231,
       243,
       245, 253, 254, 254, 254, 254, 254,
-      254, 254, 254, 254, 254, 251, 251, 254, 254, 254 }
+      254, 254, 254, 254, 254, 251, 251, 254, /* VP8 only: */ 254, 254 }
+};
+
+static const uint8_t vp7_mv_default_prob[2][17] = {
+    { 162,
+      128,
+      225, 146, 172, 147, 214,  39, 156,
+      247, 210, 135,  68, 138, 220, 239, 246 },
+    { 164,
+      128,
+      204, 170, 119, 235, 140, 230, 228,
+      244, 184, 201,  44, 173, 221, 239, 253 }
 };
 
 static const uint8_t vp8_mv_default_prob[2][19] = {
@@ -688,4 +766,60 @@ static const uint8_t vp8_mv_default_prob[2][19] = {
       128, 130, 130,  74, 148, 180, 203, 236, 254, 254 }
 };
 
+static const uint8_t vp7_feature_value_size[2][4] = {
+    {7, 6, 0, 8},
+    {7, 6, 0, 5},
+};
+
+static const int8_t vp7_feature_index_tree[4][2] =
+{
+    { 1, 2 },
+     { -0, -1 }, // '00', '01'
+     { -2, -3 }, // '10', '11'
+};
+
+static const uint16_t vp7_ydc_qlookup[] = {
+    4, 4, 5, 6, 6, 7, 8, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+    17, 18, 19, 20, 21, 22, 23, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+    32, 33, 33, 34, 35, 36, 36, 37, 38, 39, 39, 40, 41, 41, 42, 43,
+    43, 44, 45, 45, 46, 47, 48, 48, 49, 50, 51, 52, 53, 53, 54, 56,
+    57, 58, 59, 60, 62, 63, 65, 66, 68, 70, 72, 74, 76, 79, 81, 84,
+    87, 90, 93, 96, 100, 104, 108, 112, 116, 121, 126, 131, 136, 142, 148, 154,
+    160, 167, 174, 182, 189, 198, 206, 215, 224, 234, 244, 254, 265, 277, 288, 301,
+    313, 327, 340, 355, 370, 385, 401, 417, 434, 452, 470, 489, 509, 529, 550, 572,
+};
+
+static const uint16_t vp7_yac_qlookup[] = {
+    4, 4, 5, 5, 6, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17,
+    19, 20, 22, 23, 25, 26, 28, 29, 31, 32, 34, 35, 37, 38, 40, 41,
+    42, 44, 45, 46, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59, 61,
+    62, 63, 64, 65, 67, 68, 69, 70, 72, 73, 75, 76, 78, 80, 82, 84,
+    86, 88, 91, 93, 96, 99, 102, 105, 109, 112, 116, 121, 125, 130, 135, 140,
+    146, 152, 158, 165, 172, 180, 188, 196, 205, 214, 224, 234, 245, 256, 268, 281,
+    294, 308, 322, 337, 353, 369, 386, 404, 423, 443, 463, 484, 506, 529, 553, 578,
+    604, 631, 659, 688, 718, 749, 781, 814, 849, 885, 922, 960, 1000, 1041, 1083, 1127,
+};
+
+static const uint16_t vp7_y2dc_qlookup[] = {
+    7, 9, 11, 13, 15, 17, 19, 21, 23, 26, 28, 30, 33, 35, 37, 39,
+    42, 44, 46, 48, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 70, 72,
+    74, 75, 77, 78, 80, 81, 83, 84, 85, 87, 88, 89, 90, 92, 93, 94,
+    95, 96, 97, 99, 100, 101, 102, 104, 105, 106, 108, 109, 111, 113, 114, 116,
+    118, 120, 123, 125, 128, 131, 134, 137, 140, 144, 148, 152, 156, 161, 166, 171,
+    176, 182, 188, 195, 202, 209, 217, 225, 234, 243, 253, 263, 274, 285, 297, 309,
+    322, 336, 350, 365, 381, 397, 414, 432, 450, 470, 490, 511, 533, 556, 579, 604,
+    630, 656, 684, 713, 742, 773, 805, 838, 873, 908, 945, 983, 1022, 1063, 1105, 1148,
+};
+
+static const uint16_t vp7_y2ac_qlookup[] = {
+    7, 9, 11, 13, 16, 18, 21, 24, 26, 29, 32, 35, 38, 41, 43, 46,
+    49, 52, 55, 58, 61, 64, 66, 69, 72, 74, 77, 79, 82, 84, 86, 88,
+    91, 93, 95, 97, 98, 100, 102, 104, 105, 107, 109, 110, 112, 113, 115, 116,
+    117, 119, 120, 122, 123, 125, 127, 128, 130, 132, 134, 136, 138, 141, 143, 146,
+    149, 152, 155, 158, 162, 166, 171, 175, 180, 185, 191, 197, 204, 210, 218, 226,
+    234, 243, 252, 262, 273, 284, 295, 308, 321, 335, 350, 365, 381, 398, 416, 435,
+    455, 476, 497, 520, 544, 569, 595, 622, 650, 680, 711, 743, 776, 811, 848, 885,
+    925, 965, 1008, 1052, 1097, 1144, 1193, 1244, 1297, 1351, 1407, 1466, 1526, 1588, 1652, 1719,
+};
+
 #endif /* AVCODEC_VP8DATA_H */