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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
Taken from code Copyright (C) 2010-2011 Terrence Meiczinger
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.
*/
#include <openjpeg.h>
#include <libdcp/picture_asset.h>
#include "util.h"
/** @file src/dcp_video_frame.h
* @brief A single frame of video destined for a DCP.
*/
class Film;
class ServerDescription;
class Scaler;
class Image;
class Log;
class Subtitle;
/** @class EncodedData
* @brief Container for J2K-encoded data.
*/
class EncodedData
{
public:
/** @param s Size of data, in bytes */
EncodedData (int s);
EncodedData (std::string f);
virtual ~EncodedData ();
void send (boost::shared_ptr<Socket> socket);
void write (boost::shared_ptr<const Film>, int) const;
void write_info (boost::shared_ptr<const Film>, int, libdcp::FrameInfo) const;
/** @return data */
uint8_t* data () const {
return _data;
}
/** @return data size, in bytes */
int size () const {
return _size;
}
protected:
uint8_t* _data; ///< data
int _size; ///< data size in bytes
private:
/* No copy construction */
EncodedData (EncodedData const &);
};
/** @class LocallyEncodedData
* @brief EncodedData that was encoded locally; this class
* just keeps a pointer to the data, but does no memory
* management.
*/
class LocallyEncodedData : public EncodedData
{
public:
/** @param d Data (which will be copied by this class)
* @param s Size of data, in bytes.
*/
LocallyEncodedData (uint8_t* d, int s);
};
/** @class RemotelyEncodedData
* @brief EncodedData that is being read from a remote server;
* this class allocates and manages memory for the data.
*/
class RemotelyEncodedData : public EncodedData
{
public:
RemotelyEncodedData (int s);
};
/** @class DCPVideoFrame
* @brief A single frame of video destined for a DCP.
*
* Given an Image and some settings, this class knows how to encode
* the image to J2K either on the local host or on a remote server.
*
* Objects of this class are used for the queue that we keep
* of images that require encoding.
*/
class DCPVideoFrame
{
public:
DCPVideoFrame (
boost::shared_ptr<const Image>, boost::shared_ptr<Subtitle>, libdcp::Size,
int, int, float, Scaler const *, int, int, std::string, int, int, boost::shared_ptr<Log>
);
virtual ~DCPVideoFrame ();
boost::shared_ptr<EncodedData> encode_locally ();
boost::shared_ptr<EncodedData> encode_remotely (ServerDescription const *);
int frame () const {
return _frame;
}
private:
void create_openjpeg_container ();
boost::shared_ptr<const Image> _input; ///< the input image
boost::shared_ptr<Subtitle> _subtitle; ///< any subtitle that should be on the image
libdcp::Size _out_size; ///< the required size of the output, in pixels
int _padding;
int _subtitle_offset;
float _subtitle_scale;
Scaler const * _scaler; ///< scaler to use
int _frame; ///< frame index within the DCP's intrinsic duration
int _frames_per_second; ///< Frames per second that we will use for the DCP
std::string _post_process; ///< FFmpeg post-processing string to use
int _colour_lut; ///< Colour look-up table to use
int _j2k_bandwidth; ///< J2K bandwidth to use
boost::shared_ptr<Log> _log; ///< log
opj_image_cmptparm_t _cmptparm[3]; ///< libopenjpeg's opj_image_cmptparm_t
opj_image* _image; ///< libopenjpeg's image container
opj_cparameters_t* _parameters; ///< libopenjpeg's parameters
opj_cinfo_t* _cinfo; ///< libopenjpeg's opj_cinfo_t
opj_cio_t* _cio; ///< libopenjpeg's opj_cio_t
};
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