Initial community commit

1 files changed, 187 insertions, 0 deletions

diff --git a/Src/f263/vlc.cpp b/Src/f263/vlc.cpp
new file mode 100644
index 00000000..6d645465
--- /dev/null
+++ b/Src/f263/vlc.cpp
@@ -0,0 +1,187 @@
+#include "Decoder.h"
+#include "vlc_table.h"
+
+static int PRED_type_EP[]     =  {0,0,1,1,1,2,2,2,3,3};
+static int QUANT_present_EP[] =  {0,1,0,0,1,0,0,1,0,1};
+static int CBP_present_EP[]   =  {1,1,0,1,1,0,1,1,1,1};
+static VLCtab MBTYPEtabEP[] = {
+{-1,0}, {9,8}, {8,7}, {8,7}, {7,6}, {7,6}, {7,6}, {7,6}, 
+{4,5}, {4,5}, {4,5}, {4,5}, {4,5}, {4,5}, {4,5}, {4,5}, 
+{5,5}, {5,5}, {5,5}, {5,5}, {5,5}, {5,5}, {5,5}, {5,5}, 
+{6,5}, {6,5}, {6,5}, {6,5}, {6,5}, {6,5}, {6,5}, {6,5}, 
+{1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
+{1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
+{1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
+{1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
+{2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
+{2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
+{2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
+{2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
+{3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, 
+{3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3},
+{3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, 
+{3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}
+};
+static int PRED_type_B[]    =   {0,0,1,1,1,2,2,2,3,3,3,4,4};
+static int QUANT_present_B[] =  {0,1,0,0,1,0,0,1,0,0,1,0,1};
+static int CBPC_pattern_EI[]  =  {0,1,2,3,0,1,2,3,0,1,2,3,0,1,2,3};
+static int CBP_present_B[]   =  {1,1,0,1,1,0,1,1,0,1,1,1,1};
+static VLCtab MBTYPEtabB[] = {
+{-1,0}, {12,7}, {11,6}, {11,6}, {10,5}, {10,5}, {10,5}, {10,5}, 
+{1,4}, {1,4}, {1,4}, {1,4}, {1,4}, {1,4}, {1,4}, {1,4}, 
+{8,5}, {8,5}, {8,5}, {8,5}, {9,5}, {9,5}, {9,5}, {9,5}, 
+{4,5}, {4,5}, {4,5}, {4,5}, {7,5}, {7,5}, {7,5}, {7,5},
+{5,3}, {5,3}, {5,3}, {5,3}, {5,3}, {5,3}, {5,3}, {5,3}, 
+{5,3}, {5,3}, {5,3}, {5,3}, {5,3}, {5,3}, {5,3}, {5,3}, 
+{6,3}, {6,3}, {6,3}, {6,3}, {6,3}, {6,3}, {6,3}, {6,3}, 
+{6,3}, {6,3}, {6,3}, {6,3}, {6,3}, {6,3}, {6,3}, {6,3}, 
+{2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
+{2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
+{3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, 
+{3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3} 
+};
+
+static int QUANT_present_EI[] =  {0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1};
+static VLCtab MBTYPEtabEI[] = {
+{-1,0}, {8,8}, {5,7}, {5,7}, {6,7}, {6,7}, {7,7}, {7,7},
+{-1,0}, {9,8}, {10,8}, {11,8}, {12,8}, {13,8}, {14,8}, {15,8},
+{4,4}, {4,4}, {4,4}, {4,4}, {4,4}, {4,4}, {4,4}, {4,4}, 
+{4,4}, {4,4}, {4,4}, {4,4}, {4,4}, {4,4}, {4,4}, {4,4}, 
+{1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
+{1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
+{1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
+{1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
+{2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
+{2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
+{2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
+{2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
+{3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, 
+{3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, 
+{3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, 
+{3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}, {3,3}
+};
+
+static int PRED_type_EI[]     =  {1,1,1,1,1,1,1,1,3,3,3,3,3,3,3,3};
+
+int Decoder::getTMNMV()
+{
+  int code;
+
+  if (buffer.getbits1())
+  {
+    return 0;
+  }
+
+  if ((code = buffer.showbits(12))>=512)
+  {
+    code = (code>>8) - 2;
+    buffer.flushbits(TMNMVtab0[code].len);
+
+    return TMNMVtab0[code].val;
+  }
+
+  if (code>=128)
+  {
+    code = (code>>2) -32;
+    buffer.flushbits(TMNMVtab1[code].len);
+
+
+    return TMNMVtab1[code].val;
+  }
+
+  if ((code-=5)<0)
+  {
+    fault=1;
+    return 0;
+  }
+
+  buffer.flushbits(TMNMVtab2[code].len);
+
+  return TMNMVtab2[code].val;
+}
+
+
+int Decoder::getMCBPC()
+{
+	  int code;
+
+  code = buffer.showbits (13);
+
+  if (code >> 4 == 1)
+  {
+    /* macroblock stuffing */
+    buffer.flushbits (9);
+    return 255;
+  }
+  if (code == 0)
+  {
+    fault = 1;
+    return 0;
+  }
+  if (code >= 4096)
+  {
+    buffer.flushbits (1);
+    return 0;
+  }
+  if (code >= 16)
+  {
+    buffer.flushbits (MCBPCtab0[code >> 4].len);
+    return MCBPCtab0[code >> 4].val;
+  } 
+	else
+  {
+    buffer.flushbits (MCBPCtab1[code - 8].len);
+    return MCBPCtab1[code - 8].val;
+  }
+}
+
+int Decoder::getMCBPCintra()
+{
+  int code;
+
+  code = buffer.showbits(9);
+
+  if (code == 1) {
+    /* macroblock stuffing */
+    buffer.flushbits(9);
+    return 255;
+  }
+
+  if (code < 8) {
+    fault = 1;
+    return 0;
+  }
+
+  code >>= 3;
+    
+  if (code>=32)
+  {
+    buffer.flushbits(1);
+    return 3;
+  }
+
+  buffer.flushbits(MCBPCtabintra[code].len);
+
+  return MCBPCtabintra[code].val;
+}
+
+int Decoder::getCBPY()
+{
+  int code;
+
+  code = buffer.showbits(6);
+  if (code < 2) {
+    fault = 1;
+    return -1;
+  }
+    
+  if (code>=48)
+  {
+    buffer.flushbits(2);
+    return 0;
+  }
+
+  buffer.flushbits(CBPYtab[code].len);
+
+  return CBPYtab[code].val;
+}