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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
Copyright (C) 2000-2007 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file src/util.h
* @brief Some utility functions and classes.
*/
#ifndef DVDOMATIC_UTIL_H
#define DVDOMATIC_UTIL_H
#include <string>
#include <vector>
#include <boost/shared_ptr.hpp>
#include <boost/asio.hpp>
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavfilter/avfilter.h>
}
class Scaler;
extern std::string seconds_to_hms (int);
extern std::string seconds_to_approximate_hms (int);
extern void stacktrace (std::ostream &, int);
extern std::string audio_sample_format_to_string (AVSampleFormat);
extern AVSampleFormat audio_sample_format_from_string (std::string);
extern std::string dependency_version_summary ();
extern double seconds (struct timeval);
extern void dvdomatic_setup ();
extern std::vector<std::string> split_at_spaces_considering_quotes (std::string);
extern std::string md5_digest (std::string);
enum ContentType {
STILL,
VIDEO
};
#ifdef DEBUG_HASH
extern void md5_data (std::string, void const *, int);
#endif
/** @class SocketReader
* @brief A helper class from reading from sockets.
*
* You can probably do this stuff directly in boost, but I'm not sure how.
*/
class SocketReader
{
public:
SocketReader (boost::shared_ptr<boost::asio::ip::tcp::socket>);
void read_definite_and_consume (uint8_t *, int);
void read_indefinite (uint8_t *, int);
void consume (int);
private:
/** socket we are reading from */
boost::shared_ptr<boost::asio::ip::tcp::socket> _socket;
/** a buffer for small reads */
uint8_t _buffer[256];
/** amount of valid data in the buffer */
int _buffer_data;
};
/** @class Size
* @brief Representation of the size of something */
struct Size
{
/** Construct a zero Size */
Size ()
: width (0)
, height (0)
{}
/** @param w Width.
* @param h Height.
*/
Size (int w, int h)
: width (w)
, height (h)
{}
/** width */
int width;
/** height */
int height;
};
struct Crop
{
Crop () : left (0), right (0), top (0), bottom (0) {}
int left;
int right;
int top;
int bottom;
};
extern bool operator== (Crop const & a, Crop const & b);
extern bool operator!= (Crop const & a, Crop const & b);
struct Position
{
Position ()
: x (0)
, y (0)
{}
Position (int x_, int y_)
: x (x_)
, y (y_)
{}
int x;
int y;
};
extern std::string crop_string (Position, Size);
extern int dcp_audio_sample_rate (int);
#endif
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