2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
3 Taken from code Copyright (C) 2010-2011 Terrence Meiczinger
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <libdcp/picture_asset.h>
25 /** @file src/dcp_video_frame.h
26 * @brief A single frame of video destined for a DCP.
30 class ServerDescription;
36 /** @class EncodedData
37 * @brief Container for J2K-encoded data.
42 /** @param s Size of data, in bytes */
45 EncodedData (std::string f);
47 virtual ~EncodedData ();
49 void send (boost::shared_ptr<Socket> socket);
50 void write (boost::shared_ptr<const Film>, int) const;
51 void write_info (boost::shared_ptr<const Film>, int, libdcp::FrameInfo) const;
54 uint8_t* data () const {
58 /** @return data size, in bytes */
64 uint8_t* _data; ///< data
65 int _size; ///< data size in bytes
68 /* No copy construction */
69 EncodedData (EncodedData const &);
72 /** @class LocallyEncodedData
73 * @brief EncodedData that was encoded locally; this class
74 * just keeps a pointer to the data, but does no memory
77 class LocallyEncodedData : public EncodedData
80 /** @param d Data (which will be copied by this class)
81 * @param s Size of data, in bytes.
83 LocallyEncodedData (uint8_t* d, int s);
86 /** @class RemotelyEncodedData
87 * @brief EncodedData that is being read from a remote server;
88 * this class allocates and manages memory for the data.
90 class RemotelyEncodedData : public EncodedData
93 RemotelyEncodedData (int s);
96 /** @class DCPVideoFrame
97 * @brief A single frame of video destined for a DCP.
99 * Given an Image and some settings, this class knows how to encode
100 * the image to J2K either on the local host or on a remote server.
102 * Objects of this class are used for the queue that we keep
103 * of images that require encoding.
109 boost::shared_ptr<const Image>, boost::shared_ptr<Subtitle>, libdcp::Size,
110 int, int, float, Scaler const *, int, int, int, int, boost::shared_ptr<Log>
113 virtual ~DCPVideoFrame ();
115 boost::shared_ptr<EncodedData> encode_locally ();
116 boost::shared_ptr<EncodedData> encode_remotely (ServerDescription const *);
123 void create_openjpeg_container ();
125 boost::shared_ptr<const Image> _input; ///< the input image
126 boost::shared_ptr<Subtitle> _subtitle; ///< any subtitle that should be on the image
127 libdcp::Size _out_size; ///< the required size of the output, in pixels
129 int _subtitle_offset;
130 float _subtitle_scale;
131 Scaler const * _scaler; ///< scaler to use
132 int _frame; ///< frame index within the DCP's intrinsic duration
133 int _frames_per_second; ///< Frames per second that we will use for the DCP
134 int _colour_lut; ///< Colour look-up table to use
135 int _j2k_bandwidth; ///< J2K bandwidth to use
137 boost::shared_ptr<Log> _log; ///< log
139 opj_image_cmptparm_t _cmptparm[3]; ///< libopenjpeg's opj_image_cmptparm_t
140 opj_image* _image; ///< libopenjpeg's image container
141 opj_cparameters_t* _parameters; ///< libopenjpeg's parameters
142 opj_cinfo_t* _cinfo; ///< libopenjpeg's opj_cinfo_t
143 opj_cio_t* _cio; ///< libopenjpeg's opj_cio_t