ACES contribution from AMPAS/Ruppel

1 files changed, 181 insertions, 0 deletions

diff --git a/src/ACES_Codestream_Parser.cpp b/src/ACES_Codestream_Parser.cpp
new file mode 100644
index 0000000..884dfb2
--- /dev/null
+++ b/src/ACES_Codestream_Parser.cpp
@@ -0,0 +1,181 @@
+/*
+Copyright (c) 2018, Bjoern Stresing, Patrick Bichiou, Wolfgang Ruppel,
+John Hurst
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote products
+derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "ACES.h"
+#include <KM_fileio.h>
+#include <assert.h>
+#include <KM_log.h>
+
+
+using Kumu::DefaultLogSink;
+
+AS_02::Result_t AS_02::ACES::ParseMetadataIntoDesc(const FrameBuffer &FB, PictureDescriptor &PDesc, byte_t *start_of_data /*= NULL*/) {
+
+  const byte_t* p = FB.RoData();
+  const byte_t* end_p = p + FB.Size();
+  Result_t result = RESULT_OK;
+  Attribute NextAttribute;
+
+  result = CheckMagicNumber(&p);
+  if(ASDCP_FAILURE(result)) return result;
+  result = CheckVersionField(&p);
+  if(ASDCP_FAILURE(result)) return result;
+  NextAttribute.Move(p);
+
+  while(p < end_p && ASDCP_SUCCESS(result)) {
+
+    if(NextAttribute.IsValid()) {
+      switch(NextAttribute.GetAttribute()) {
+        case AcesImageContainerFlag:
+          result = NextAttribute.GetValueAsBasicType(PDesc.AcesImageContainerFlag);
+          break;
+        case Channels:
+          result = NextAttribute.GetValueAsChlist(PDesc.Channels);
+          break;
+        case Chromaticities:
+          result = NextAttribute.GetValueAsChromaticities(PDesc.Chromaticities);
+          break;
+        case Compression:
+          result = NextAttribute.GetValueAsBasicType(PDesc.Compression);
+          break;
+        case DataWindow:
+          result = NextAttribute.GetValueAsBox2i(PDesc.DataWindow);
+          break;
+        case DisplayWindow:
+          result = NextAttribute.GetValueAsBox2i(PDesc.DisplayWindow);
+          break;
+        case LineOrder:
+          result = NextAttribute.GetValueAsBasicType(PDesc.LineOrder);
+          break;
+        case PixelAspectRatio:
+          result = NextAttribute.GetValueAsBasicType(PDesc.PixelAspectRatio);
+          break;
+        case ScreenWindowCenter:
+          result = NextAttribute.GetValueAsV2f(PDesc.ScreenWindowCenter);
+          break;
+        case SreenWindowWidth:
+          result = NextAttribute.GetValueAsBasicType(PDesc.ScreenWindowWidth);
+          break;
+        case Other:
+          result = NextAttribute.CopyToGenericContainer(PDesc.Other);
+          break;
+        default:
+          DefaultLogSink().Error("Attribute mismatch.\n");
+          result = RESULT_FAIL;
+          break;
+      }
+      if(ASDCP_FAILURE(result))
+      {
+        result = RESULT_FAIL;
+        break;
+      }
+    }
+    result = GetNextAttribute(&p, NextAttribute);
+    if(result == RESULT_ENDOFFILE)
+    { // Indicates end of header.
+      p = end_p;
+      result = RESULT_OK;
+    }
+  }
+  return result;
+}
+
+class AS_02::ACES::CodestreamParser::h__CodestreamParser
+{
+
+  ASDCP_NO_COPY_CONSTRUCT(h__CodestreamParser);
+
+public:
+  PictureDescriptor  m_PDesc;
+  Kumu::FileReader   m_File;
+
+  h__CodestreamParser()
+  {
+    memset(&m_PDesc, 0, sizeof(m_PDesc));
+    m_PDesc.EditRate = ASDCP::Rational(24, 1);
+    m_PDesc.SampleRate = m_PDesc.EditRate;
+  }
+
+  ~h__CodestreamParser() {}
+
+  Result_t OpenReadFrame(const std::string& filename, FrameBuffer& FB)
+  {
+    m_File.Close();
+    Result_t result = m_File.OpenRead(filename);
+
+    if(ASDCP_SUCCESS(result))
+    {
+      Kumu::fsize_t file_size = m_File.Size();
+      if(FB.Capacity() < file_size)
+      {
+        DefaultLogSink().Error("FrameBuf.Capacity: %u frame length: %u\n", FB.Capacity(), (ui32_t)file_size);
+        return RESULT_SMALLBUF;
+      }
+    }
+
+    ui32_t read_count;
+
+    if(ASDCP_SUCCESS(result)) result = m_File.Read(FB.Data(), FB.Capacity(), &read_count);
+
+    if(ASDCP_SUCCESS(result)) FB.Size(read_count);
+
+    if(ASDCP_SUCCESS(result))
+    {
+      byte_t start_of_data = 0; // out param
+      result = ParseMetadataIntoDesc(FB, m_PDesc, &start_of_data);
+      if(ASDCP_SUCCESS(result)) FB.PlaintextOffset(start_of_data);
+    }
+    return result;
+  }
+};
+
+AS_02::ACES::CodestreamParser::CodestreamParser()
+{
+
+}
+
+AS_02::ACES::CodestreamParser::~CodestreamParser()
+{
+
+}
+
+AS_02::Result_t AS_02::ACES::CodestreamParser::OpenReadFrame(const std::string &filename, FrameBuffer &FB) const
+{
+
+  const_cast<AS_02::ACES::CodestreamParser*>(this)->m_Parser = new h__CodestreamParser;
+  return m_Parser->OpenReadFrame(filename, FB);
+}
+
+AS_02::Result_t AS_02::ACES::CodestreamParser::FillPictureDescriptor(PictureDescriptor &PDesc) const
+{
+
+  if(m_Parser.empty()) return RESULT_INIT;
+  PDesc = m_Parser->m_PDesc;
+  return RESULT_OK;
+}