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/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef FOURCC_HPP
#define FOURCC_HPP
#include <iosfwd>
#include <cstring>
#if defined(__POWERPC__) || defined(__APPLE__) || defined(__MERKS__)
using namespace std;
#endif
class four_cc
{
public:
four_cc();
four_cc(const char*);
explicit four_cc(unsigned long);
bool operator==(const four_cc&) const;
bool operator!=(const four_cc&) const;
bool operator==(const char*) const;
bool operator!=(const char*) const;
operator unsigned long() const;
unsigned long as_long() const;
four_cc& operator=(unsigned long);
char operator[](int) const;
std::ostream& put(std::ostream&) const;
bool printable() const;
private:
union
{
char code[4];
unsigned long code_as_long;
};
};
inline four_cc::four_cc()
{
}
inline four_cc::four_cc(unsigned long x)
: code_as_long(x)
{
}
inline four_cc::four_cc(const char* str)
{
memcpy(code, str, 4);
}
inline bool four_cc::operator==(const four_cc& rhs) const
{
return code_as_long == rhs.code_as_long;
}
inline bool four_cc::operator!=(const four_cc& rhs) const
{
return !operator==(rhs);
}
inline bool four_cc::operator==(const char* rhs) const
{
return (memcmp(code, rhs, 4) == 0);
}
inline bool four_cc::operator!=(const char* rhs) const
{
return !operator==(rhs);
}
inline four_cc::operator unsigned long() const
{
return code_as_long;
}
inline unsigned long four_cc::as_long() const
{
return code_as_long;
}
inline char four_cc::operator[](int i) const
{
return code[i];
}
inline four_cc& four_cc::operator=(unsigned long val)
{
code_as_long = val;
return *this;
}
inline std::ostream& operator<<(std::ostream& os, const four_cc& rhs)
{
return rhs.put(os);
}
#endif
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