Initial community commit

Src/nsavi/file_avi_reader.cpp

@@ -0,0 +1,43 @@
+#include "file_avi_reader.h"
+
+AVIReaderFILE::AVIReaderFILE(const wchar_t *filename)
+{
+	f = _wfopen(filename, L"rb");
+}
+
+int AVIReaderFILE::Read(void *buffer, uint32_t read_length, uint32_t *bytes_read)
+{
+	*bytes_read = fread(buffer, 1, read_length, f);
+	return nsavi::READ_OK;
+}
+
+	int AVIReaderFILE::Peek(void *buffer, uint32_t read_length, uint32_t *bytes_read)
+	{
+		*bytes_read = fread(buffer, 1, read_length, f);
+		fseek(f, -read_length, SEEK_CUR);
+		return nsavi::READ_OK;
+	}
+
+	int AVIReaderFILE::Seek(uint64_t position)
+	{
+fsetpos(f, (const fpos_t *)&position);
+return nsavi::READ_OK;
+	}
+
+	uint64_t AVIReaderFILE::Tell()
+	{
+		uint64_t pos;
+		fgetpos(f, (fpos_t *)&pos);
+		return pos;
+	}
+
+	int AVIReaderFILE::Skip(uint32_t skip_bytes)
+	{
+		fseek(f, skip_bytes, SEEK_CUR);
+		return nsavi::READ_OK;
+	}
+
+	AVIReaderFILE::~AVIReaderFILE()
+	{
+		fclose(f);
+	}