2 Copyright (C) 2012-2015 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.
21 /** @file src/dcp_video_frame.cc
22 * @brief A single frame of video destined for a DCP.
24 * Given an Image and some settings, this class knows how to encode
25 * the image to J2K either on the local host or on a remote server.
27 * Objects of this class are used for the queue that we keep
28 * of images that require encoding.
31 #include "dcp_video.h"
33 #include "exceptions.h"
35 #include "dcpomatic_socket.h"
39 #include "player_video.h"
40 #include "raw_convert.h"
42 #include "compose.hpp"
43 #include <libcxml/cxml.h>
44 #include <dcp/openjpeg_image.h>
45 #include <dcp/rgb_xyz.h>
46 #include <dcp/colour_matrix.h>
47 #include <boost/asio.hpp>
52 #define LOG_GENERAL(...) _log->log (String::compose (__VA_ARGS__), Log::TYPE_GENERAL);
53 #define LOG_DEBUG_ENCODE(...) _log->log (String::compose (__VA_ARGS__), Log::TYPE_DEBUG_ENCODE);
54 #define LOG_TIMING(...) _log->microsecond_log (String::compose (__VA_ARGS__), Log::TYPE_TIMING);
60 using boost::shared_ptr;
63 #define DCI_COEFFICENT (48.0 / 52.37)
65 /** Construct a DCP video frame.
66 * @param frame Input frame.
67 * @param index Index of the frame within the DCP.
68 * @param bw J2K bandwidth to use (see Config::j2k_bandwidth ())
69 * @param l Log to write to.
72 shared_ptr<const PlayerVideo> frame, int index, int dcp_fps, int bw, Resolution r, shared_ptr<Log> l
76 , _frames_per_second (dcp_fps)
84 DCPVideo::DCPVideo (shared_ptr<const PlayerVideo> frame, shared_ptr<const cxml::Node> node, shared_ptr<Log> log)
88 _index = node->number_child<int> ("Index");
89 _frames_per_second = node->number_child<int> ("FramesPerSecond");
90 _j2k_bandwidth = node->number_child<int> ("J2KBandwidth");
91 _resolution = Resolution (node->optional_number_child<int>("Resolution").get_value_or (RESOLUTION_2K));
94 /** J2K-encode this frame on the local host.
95 * @return Encoded data.
98 DCPVideo::encode_locally (dcp::NoteHandler note)
100 shared_ptr<dcp::OpenJPEGImage> xyz;
102 shared_ptr<Image> image = _frame->image (AV_PIX_FMT_RGB48LE, note);
103 if (_frame->colour_conversion()) {
104 xyz = dcp::rgb_to_xyz (
108 _frame->colour_conversion().get(),
112 xyz = dcp::xyz_to_xyz (image->data()[0], image->size(), image->stride()[0]);
115 /* Set the max image and component sizes based on frame_rate */
116 int max_cs_len = ((float) _j2k_bandwidth) / 8 / _frames_per_second;
117 if (_frame->eyes() == EYES_LEFT || _frame->eyes() == EYES_RIGHT) {
118 /* In 3D we have only half the normal bandwidth per eye */
121 int const max_comp_size = max_cs_len / 1.25;
123 /* get a J2K compressor handle */
124 opj_cinfo_t* cinfo = opj_create_compress (CODEC_J2K);
126 throw EncodeError (N_("could not create JPEG2000 encoder"));
129 /* Set encoding parameters to default values */
130 opj_cparameters_t parameters;
131 opj_set_default_encoder_parameters (¶meters);
133 /* Set default cinema parameters */
134 parameters.tile_size_on = false;
135 parameters.cp_tdx = 1;
136 parameters.cp_tdy = 1;
139 parameters.tp_flag = 'C';
140 parameters.tp_on = 1;
142 /* Tile and Image shall be at (0,0) */
143 parameters.cp_tx0 = 0;
144 parameters.cp_ty0 = 0;
145 parameters.image_offset_x0 = 0;
146 parameters.image_offset_y0 = 0;
148 /* Codeblock size = 32x32 */
149 parameters.cblockw_init = 32;
150 parameters.cblockh_init = 32;
151 parameters.csty |= 0x01;
153 /* The progression order shall be CPRL */
154 parameters.prog_order = CPRL;
157 parameters.roi_compno = -1;
159 parameters.subsampling_dx = 1;
160 parameters.subsampling_dy = 1;
163 parameters.irreversible = 1;
165 parameters.tcp_rates[0] = 0;
166 parameters.tcp_numlayers++;
167 parameters.cp_disto_alloc = 1;
168 parameters.cp_rsiz = _resolution == RESOLUTION_2K ? CINEMA2K : CINEMA4K;
169 if (_resolution == RESOLUTION_4K) {
170 parameters.numpocs = 2;
171 parameters.POC[0].tile = 1;
172 parameters.POC[0].resno0 = 0;
173 parameters.POC[0].compno0 = 0;
174 parameters.POC[0].layno1 = 1;
175 parameters.POC[0].resno1 = parameters.numresolution - 1;
176 parameters.POC[0].compno1 = 3;
177 parameters.POC[0].prg1 = CPRL;
178 parameters.POC[1].tile = 1;
179 parameters.POC[1].resno0 = parameters.numresolution - 1;
180 parameters.POC[1].compno0 = 0;
181 parameters.POC[1].layno1 = 1;
182 parameters.POC[1].resno1 = parameters.numresolution;
183 parameters.POC[1].compno1 = 3;
184 parameters.POC[1].prg1 = CPRL;
187 parameters.cp_comment = strdup (N_("DCP-o-matic"));
188 parameters.cp_cinema = _resolution == RESOLUTION_2K ? CINEMA2K_24 : CINEMA4K_24;
190 /* 3 components, so use MCT */
191 parameters.tcp_mct = 1;
194 parameters.max_comp_size = max_comp_size;
195 parameters.tcp_rates[0] = ((float) (3 * xyz->size().width * xyz->size().height * 12)) / (max_cs_len * 8);
197 /* Set event manager to null (openjpeg 1.3 bug) */
198 cinfo->event_mgr = 0;
200 /* Setup the encoder parameters using the current image and user parameters */
201 opj_setup_encoder (cinfo, ¶meters, xyz->opj_image ());
203 opj_cio_t* cio = opj_cio_open ((opj_common_ptr) cinfo, 0, 0);
205 opj_destroy_compress (cinfo);
206 throw EncodeError (N_("could not open JPEG2000 stream"));
209 int const r = opj_encode (cinfo, cio, xyz->opj_image(), 0);
212 opj_destroy_compress (cinfo);
213 throw EncodeError (N_("JPEG2000 encoding failed"));
216 switch (_frame->eyes()) {
218 LOG_DEBUG_ENCODE (N_("Finished locally-encoded frame %1 for mono"), _index);
221 LOG_DEBUG_ENCODE (N_("Finished locally-encoded frame %1 for L"), _index);
224 LOG_DEBUG_ENCODE (N_("Finished locally-encoded frame %1 for R"), _index);
230 Data enc (cio->buffer, cio_tell (cio));
233 free (parameters.cp_comment);
234 opj_destroy_compress (cinfo);
239 /** Send this frame to a remote server for J2K encoding, then read the result.
240 * @param serv Server to send to.
241 * @return Encoded data.
244 DCPVideo::encode_remotely (ServerDescription serv)
246 boost::asio::io_service io_service;
247 boost::asio::ip::tcp::resolver resolver (io_service);
248 boost::asio::ip::tcp::resolver::query query (serv.host_name(), raw_convert<string> (Config::instance()->server_port_base ()));
249 boost::asio::ip::tcp::resolver::iterator endpoint_iterator = resolver.resolve (query);
251 shared_ptr<Socket> socket (new Socket);
253 socket->connect (*endpoint_iterator);
255 /* Collect all XML metadata */
257 xmlpp::Element* root = doc.create_root_node ("EncodingRequest");
258 root->add_child("Version")->add_child_text (raw_convert<string> (SERVER_LINK_VERSION));
261 LOG_DEBUG_ENCODE (N_("Sending frame %1 to remote"), _index);
263 /* Send XML metadata */
264 string xml = doc.write_to_string ("UTF-8");
265 socket->write (xml.length() + 1);
266 socket->write ((uint8_t *) xml.c_str(), xml.length() + 1);
268 /* Send binary data */
269 LOG_TIMING("start-remote-send thread=%1", boost::this_thread::get_id());
270 _frame->send_binary (socket);
271 LOG_TIMING("finish-remote-send thread=%1", boost::this_thread::get_id());
273 /* Read the response (JPEG2000-encoded data); this blocks until the data
274 is ready and sent back.
276 LOG_TIMING("start-remote-encode-and-receive thread=%1", boost::this_thread::get_id ());
277 Data e (socket->read_uint32 ());
278 socket->read (e.data().get(), e.size());
279 LOG_TIMING("finish-remote-encode-and-receive thread=%1", boost::this_thread::get_id ());
281 LOG_DEBUG_ENCODE (N_("Finished remotely-encoded frame %1"), _index);
287 DCPVideo::add_metadata (xmlpp::Element* el) const
289 el->add_child("Index")->add_child_text (raw_convert<string> (_index));
290 el->add_child("FramesPerSecond")->add_child_text (raw_convert<string> (_frames_per_second));
291 el->add_child("J2KBandwidth")->add_child_text (raw_convert<string> (_j2k_bandwidth));
292 el->add_child("Resolution")->add_child_text (raw_convert<string> (int (_resolution)));
293 _frame->add_metadata (el);
297 DCPVideo::eyes () const
299 return _frame->eyes ();
302 /** @return true if this DCPVideo is definitely the same as another;
303 * (apart from the frame index), false if it is probably not.
306 DCPVideo::same (shared_ptr<const DCPVideo> other) const
308 if (_frames_per_second != other->_frames_per_second ||
309 _j2k_bandwidth != other->_j2k_bandwidth ||
310 _resolution != other->_resolution) {
314 return _frame->same (other->_frame);