Changeset 1037 in SHVCSoftware for branches/SHM-dev/source/Lib/TLibEncoder/SEIwrite.cpp

Timestamp:

27 Feb 2015, 21:05:56 (10 years ago)

Author:

seregin

Message:

implementation of alpha channel SEI (JCTVC-P0123) with macro P0123_ALPHA_CHANNEL_SEI, patch was provided by Matteo Naccari <Matteo.Naccari@…>

File:

• branches/SHM-dev/source/Lib/TLibEncoder/SEIwrite.cpp (modified) (2 diffs)

branches/SHM-dev/source/Lib/TLibEncoder/SEIwrite.cpp

@@ -209 +209 @@
      break;
 #endif
+#if P0123_ALPHA_CHANNEL_SEI
+   case SEI::ALPHA_CHANNEL_INFO:
+     xWriteSEIAlphaChannelInfo(*static_cast<const SEIAlphaChannelInfo*>(&sei));
+     break;
+#endif
 #if Q0096_OVERLAY_SEI
    case SEI::OVERLAY_INFO:
@@ -1417 +1422 @@
 #endif
 
+#if P0123_ALPHA_CHANNEL_SEI
+Void SEIWriter::xWriteSEIAlphaChannelInfo(const SEIAlphaChannelInfo &sei)
+{
+  WRITE_FLAG(sei.m_alphaChannelCancelFlag, "alpha_channel_cancel_flag");
+  if(!sei.m_alphaChannelCancelFlag)
+  {
+    WRITE_CODE(sei.m_alphaChannelUseIdc, 3, "alpha_channel_use_idc");
+    WRITE_CODE(sei.m_alphaChannelBitDepthMinus8, 3, "alpha_channel_bit_depth_minus8");
+    WRITE_CODE(sei.m_alphaTransparentValue, sei.m_alphaChannelBitDepthMinus8 + 9, "alpha_transparent_value");
+    WRITE_CODE(sei.m_alphaOpaqueValue, sei.m_alphaChannelBitDepthMinus8 + 9, "alpha_opaque_value");
+    WRITE_FLAG(sei.m_alphaChannelIncrFlag, "alpha_channel_incr_flag");
+    WRITE_FLAG(sei.m_alphaChannelClipFlag, "alpha_channel_clip_flag");
+    if(sei.m_alphaChannelClipFlag)
+    {
+      WRITE_FLAG(sei.m_alphaChannelClipTypeFlag, "alpha_channel_clip_type_flag");
+    }
+  }
+  xWriteByteAlign();
+}
+#endif
+
 #if Q0096_OVERLAY_SEI
 Void SEIWriter::xWriteSEIOverlayInfo(const SEIOverlayInfo &sei)