Initial revision

Originally committed as revision 5 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 106 insertions, 0 deletions

diff --git a/libavcodec/mpeg4data.h b/libavcodec/mpeg4data.h
new file mode 100644
index 0000000000..54b93d97ed
--- /dev/null
+++ b/libavcodec/mpeg4data.h
@@ -0,0 +1,106 @@
+
+/* dc encoding for mpeg4 */
+static const UINT8 DCtab_lum[13][2] =
+{
+    {3,3}, {3,2}, {2,2}, {2,3}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7},
+    {1,8}, {1,9}, {1,10}, {1,11},
+}; 
+
+static const UINT8 DCtab_chrom[13][2] =
+{
+    {3,2}, {2,2}, {1,2}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7}, {1,8},
+    {1,9}, {1,10}, {1,11}, {1,12},
+}; 
+
+const UINT16 intra_vlc[103][2] = {
+{ 0x2, 2 },
+{ 0x6, 3 },{ 0xf, 4 },{ 0xd, 5 },{ 0xc, 5 },
+{ 0x15, 6 },{ 0x13, 6 },{ 0x12, 6 },{ 0x17, 7 },
+{ 0x1f, 8 },{ 0x1e, 8 },{ 0x1d, 8 },{ 0x25, 9 },
+{ 0x24, 9 },{ 0x23, 9 },{ 0x21, 9 },{ 0x21, 10 },
+{ 0x20, 10 },{ 0xf, 10 },{ 0xe, 10 },{ 0x7, 11 },
+{ 0x6, 11 },{ 0x20, 11 },{ 0x21, 11 },{ 0x50, 12 },
+{ 0x51, 12 },{ 0x52, 12 },{ 0xe, 4 },{ 0x14, 6 },
+{ 0x16, 7 },{ 0x1c, 8 },{ 0x20, 9 },{ 0x1f, 9 },
+{ 0xd, 10 },{ 0x22, 11 },{ 0x53, 12 },{ 0x55, 12 },
+{ 0xb, 5 },{ 0x15, 7 },{ 0x1e, 9 },{ 0xc, 10 },
+{ 0x56, 12 },{ 0x11, 6 },{ 0x1b, 8 },{ 0x1d, 9 },
+{ 0xb, 10 },{ 0x10, 6 },{ 0x22, 9 },{ 0xa, 10 },
+{ 0xd, 6 },{ 0x1c, 9 },{ 0x8, 10 },{ 0x12, 7 },
+{ 0x1b, 9 },{ 0x54, 12 },{ 0x14, 7 },{ 0x1a, 9 },
+{ 0x57, 12 },{ 0x19, 8 },{ 0x9, 10 },{ 0x18, 8 },
+{ 0x23, 11 },{ 0x17, 8 },{ 0x19, 9 },{ 0x18, 9 },
+{ 0x7, 10 },{ 0x58, 12 },{ 0x7, 4 },{ 0xc, 6 },
+{ 0x16, 8 },{ 0x17, 9 },{ 0x6, 10 },{ 0x5, 11 },
+{ 0x4, 11 },{ 0x59, 12 },{ 0xf, 6 },{ 0x16, 9 },
+{ 0x5, 10 },{ 0xe, 6 },{ 0x4, 10 },{ 0x11, 7 },
+{ 0x24, 11 },{ 0x10, 7 },{ 0x25, 11 },{ 0x13, 7 },
+{ 0x5a, 12 },{ 0x15, 8 },{ 0x5b, 12 },{ 0x14, 8 },
+{ 0x13, 8 },{ 0x1a, 8 },{ 0x15, 9 },{ 0x14, 9 },
+{ 0x13, 9 },{ 0x12, 9 },{ 0x11, 9 },{ 0x26, 11 },
+{ 0x27, 11 },{ 0x5c, 12 },{ 0x5d, 12 },{ 0x5e, 12 },
+{ 0x5f, 12 },{ 0x3, 7 },
+};
+
+const INT8 intra_level[102] = {
+  1,  2,  3,  4,  5,  6,  7,  8,
+  9, 10, 11, 12, 13, 14, 15, 16,
+ 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27,  1,  2,  3,  4,  5,
+  6,  7,  8,  9, 10,  1,  2,  3,
+  4,  5,  1,  2,  3,  4,  1,  2,
+  3,  1,  2,  3,  1,  2,  3,  1,
+  2,  3,  1,  2,  1,  2,  1,  1,
+  1,  1,  1,  1,  2,  3,  4,  5,
+  6,  7,  8,  1,  2,  3,  1,  2,
+  1,  2,  1,  2,  1,  2,  1,  2,
+  1,  1,  1,  1,  1,  1,  1,  1,
+  1,  1,  1,  1,  1,  1,
+};
+
+const INT8 intra_run[102] = {
+  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  1,  1,  1,  1,  1,
+  1,  1,  1,  1,  1,  2,  2,  2,
+  2,  2,  3,  3,  3,  3,  4,  4,
+  4,  5,  5,  5,  6,  6,  6,  7,
+  7,  7,  8,  8,  9,  9, 10, 11,
+ 12, 13, 14,  0,  0,  0,  0,  0,
+  0,  0,  0,  1,  1,  1,  2,  2,
+  3,  3,  4,  4,  5,  5,  6,  6,
+  7,  8,  9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20,
+};
+
+static RLTable rl_intra = {
+    102,
+    67,
+    intra_vlc,
+    intra_run,
+    intra_level,
+};
+
+/* alternate scan orders used when doing AC prediction */
+UINT8 ff_alternate_horizontal_scan[64] = {
+    0,  1,  2,  3,  8,  9, 16, 17, 
+    10, 11,  4,  5,  6,  7, 15, 14,
+    13, 12, 19, 18, 24, 25, 32, 33, 
+    26, 27, 20, 21, 22, 23, 28, 29,
+    30, 31, 34, 35, 40, 41, 48, 49, 
+    42, 43, 36, 37, 38, 39, 44, 45,
+    46, 47, 50, 51, 56, 57, 58, 59, 
+    52, 53, 54, 55, 60, 61, 62, 63,
+};
+
+UINT8 ff_alternate_vertical_scan[64] = {
+    0,  8, 16, 24,  1,  9,  2, 10, 
+    17, 25, 32, 40, 48, 56, 57, 49,
+    41, 33, 26, 18,  3, 11,  4, 12, 
+    19, 27, 34, 42, 50, 58, 35, 43,
+    51, 59, 20, 28,  5, 13,  6, 14, 
+    21, 29, 36, 44, 52, 60, 37, 45,
+    53, 61, 22, 30,  7, 15, 23, 31, 
+    38, 46, 54, 62, 39, 47, 55, 63,
+};