Initial community commit

Src/Plugins/Input/in_mp3/RawMediaReader.cpp

@@ -0,0 +1,84 @@
+#include "RawMediaReader.h"
+#include <limits.h>
+
+bool IsMyExtension(const wchar_t *filename);
+
+int RawMediaReaderService::CreateRawMediaReader(const wchar_t *filename, ifc_raw_media_reader **out_reader)
+{
+	if (IsMyExtension(filename))
+	{
+		CGioFile *file = new CGioFile();
+		if (!file)
+			return NErr_OutOfMemory;
+
+		if (file->Open(filename, 0) != NErr_Success)
+		{
+			delete file;
+			return NErr_FileNotFound;
+		}
+
+		RawMediaReader *reader = new RawMediaReader(file);
+		if (!reader)
+		{
+			file->Close();
+			delete file;
+			return NErr_OutOfMemory;
+		}
+
+		*out_reader = reader;
+		return NErr_Success;
+	}
+	else
+	{
+		return NErr_False;
+	}
+}
+
+#define CBCLASS RawMediaReaderService
+START_DISPATCH;
+CB(CREATERAWMEDIAREADER, CreateRawMediaReader);
+END_DISPATCH;
+#undef CBCLASS
+
+RawMediaReader::RawMediaReader(CGioFile *file) : file(file)
+{}
+
+int RawMediaReader::Read( void *buffer, size_t buffer_size, size_t *bytes_read )
+{
+	if ( buffer_size > INT_MAX )
+		return NErr_BadParameter;
+
+	int file_bytes_read = 0;
+	int ret = file->Read( buffer, (int)buffer_size, &file_bytes_read );
+
+	if ( ret == NErr_Success )
+	{
+		*bytes_read = (size_t)file_bytes_read;
+		if ( !file_bytes_read && file->IsEof() )
+			return NErr_EndOfFile;
+
+		return NErr_Success;
+	}
+	else
+		return NErr_Error;
+}
+
+size_t RawMediaReader::Release()
+{
+	file->Close();
+
+	delete file;
+	file = NULL;
+
+	delete this;
+
+	return 0;
+}
+
+
+#define CBCLASS RawMediaReader
+START_DISPATCH;
+CB( RELEASE,  Release );
+CB( RAW_READ, Read );
+END_DISPATCH;
+#undef CBCLASS