Merge pull request #2131 from JeromeMartinez/EXR_TimeCode

EXR: support of time code and frame rate
MediaArea · Oct 18, 2024 · 5373188 · 5373188
2 parents d77639f + 42b93d2
commit 5373188
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diff --git a/Source/MediaInfo/Image/File_Exr.cpp b/Source/MediaInfo/Image/File_Exr.cpp
@@ -23,11 +23,27 @@
 //---------------------------------------------------------------------------
 #include "MediaInfo/Image/File_Exr.h"
 #include "MediaInfo/MediaInfo_Config_MediaInfo.h"
+#include "MediaInfo/TimeCode.h"
 //---------------------------------------------------------------------------
 
 namespace MediaInfoLib
 {
 
+
+//***************************************************************************
+// Utils
+//***************************************************************************
+
+//---------------------------------------------------------------------------
+static unsigned BCD_to_Decimal(unsigned Value)
+{
+    int Tens=Value>>4;
+    int Units=Value&0xF;
+    if (Tens>=10 || Units>=10)
+        return (unsigned)-1;
+    return Tens*10+Units;
+}
+
 //***************************************************************************
 // Infos
 //***************************************************************************
@@ -233,8 +249,12 @@ void File_Exr::Data_Parse()
         dataWindow();
     else if (name=="displayWindow" && type=="box2i" && Element_Size==16)
         displayWindow();
+    else if (name=="framesPerSecond" && type=="rational" && Element_Size==8)
+        framesPerSecond();
     else if (name=="pixelAspectRatio" && type=="float" && Element_Size==4)
         pixelAspectRatio();
+    else if (name=="timeCode" && type=="timecode" && Element_Size==8)
+        timeCode();
     else
         Skip_XX(Element_Size,                                   "value");
 }
@@ -423,6 +443,18 @@ void File_Exr::displayWindow ()
     }
 }
 
+//---------------------------------------------------------------------------
+void File_Exr::framesPerSecond()
+{
+    //Parsing
+    int32u n, d;
+    Get_L4 (n,                                                  "n");
+    Get_L4 (d,                                                  "d");
+
+    //Filling
+    Fill(StreamKind_Last, 0, "FrameRate", ((float)n)/d);
+}
+
 //---------------------------------------------------------------------------
 void File_Exr::pixelAspectRatio ()
 {
@@ -435,6 +467,26 @@ void File_Exr::pixelAspectRatio ()
         Fill(StreamKind_Last, 0, "PixelAspectRatio", value?value:1, 3);
 }
 
+//---------------------------------------------------------------------------
+void File_Exr::timeCode ()
+{
+    //Parsing
+    int32u timeAndFlags;
+    Get_L4 (timeAndFlags,                                       "timeAndFlags");
+    Skip_L4(                                                    "userData");
+
+    //Filling
+    //21HHhhhh0MMMmmmmfSSSsssscdFFffff
+    auto HH = BCD_to_Decimal((timeAndFlags >> 24) & 0x3F);
+    auto MM = BCD_to_Decimal((timeAndFlags >> 16) & 0x7F);
+    auto SS = BCD_to_Decimal((timeAndFlags >>  8) & 0x7F);
+    auto FF = BCD_to_Decimal((timeAndFlags      ) & 0x3F);
+    auto Field =            ((timeAndFlags >> 15 ) & 0x01);
+    auto Drop =             ((timeAndFlags >>  6 ) & 0x01);
+    TimeCode TC(HH, MM, SS, FF, 99, TimeCode::flags().DropFrame(Drop).Field(Field));
+    Fill(StreamKind_Last, 0, "TimeCode", TC.ToString());
+}
+
 } //NameSpace
 
 #endif //MEDIAINFO_EXR_YES
diff --git a/Source/MediaInfo/Image/File_Exr.h b/Source/MediaInfo/Image/File_Exr.h
@@ -63,7 +63,9 @@ private :
     void compression();
     void dataWindow();
     void displayWindow();
+    void framesPerSecond();
     void pixelAspectRatio();
+    void timeCode();
 
     //Temp
     std::string         name;