Changeset 133 in SHVCSoftware for branches/SHM-2.0-dev/source/Lib/TLibCommon/TComBitStream.cpp

Timestamp:

28 Apr 2013, 08:49:16 (12 years ago)

Author:

seregin

Message:

update to HM10.1

File:

• branches/SHM-2.0-dev/source/Lib/TLibCommon/TComBitStream.cpp (modified) (2 diffs)

branches/SHM-2.0-dev/source/Lib/TLibCommon/TComBitStream.cpp

@@ -177 +177 @@
   }
 }
+
 Void TComOutputBitstream::writeByteAlignment()
 {
@@ -182 +183 @@
   writeAlignZero();
 }
+
+Int TComOutputBitstream::countStartCodeEmulations()
+{
+  UInt cnt = 0;
+  vector<uint8_t>& rbsp   = getFIFO();
+  for (vector<uint8_t>::iterator it = rbsp.begin(); it != rbsp.end();)
+  {
+    vector<uint8_t>::iterator found = it;
+    do
+    {
+      // find the next emulated 00 00 {00,01,02,03}
+      // NB, end()-1, prevents finding a trailing two byte sequence
+      found = search_n(found, rbsp.end()-1, 2, 0);
+      found++;
+      // if not found, found == end, otherwise found = second zero byte
+      if (found == rbsp.end())
+      {
+        break;
+      }
+      if (*(++found) <= 3)
+      {
+        break;
+      }
+    } while (true);
+    it = found;
+    if (found != rbsp.end())
+    {
+      cnt++;
+    }
+  }
+  return cnt;
+}
+
 /**
  * read #uiNumberOfBits# from bitstream without updating the bitstream