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.
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.
41 #include <boost/array.hpp>
42 #include <boost/asio.hpp>
43 #include <boost/filesystem.hpp>
44 #include <boost/lexical_cast.hpp>
46 #include "dcp_video_frame.h"
49 #include "film_state.h"
51 #include "exceptions.h"
59 using namespace boost;
61 /** Construct a DCP video frame.
62 * @param input Input image.
63 * @param out Required size of output, in pixels (including any padding).
64 * @param s Scaler to use.
65 * @param p Number of pixels of padding either side of the image.
66 * @param f Index of the frame within the Film.
67 * @param fps Frames per second of the Film.
68 * @param pp FFmpeg post-processing string to use.
69 * @param clut Colour look-up table to use (see Config::colour_lut_index ())
70 * @param bw J2K bandwidth to use (see Config::j2k_bandwidth ())
71 * @param l Log to write to.
73 DCPVideoFrame::DCPVideoFrame (
74 shared_ptr<Image> yuv, Size out, int p, Scaler const * s, int f, float fps, string pp, int clut, int bw, Log* l)
80 /* we round here; not sure if this is right */
81 , _frames_per_second (rint (fps))
83 , _colour_lut_index (clut)
94 /** Create a libopenjpeg container suitable for our output image */
96 DCPVideoFrame::create_openjpeg_container ()
98 for (int i = 0; i < 3; ++i) {
101 _cmptparm[i].w = _out_size.width;
102 _cmptparm[i].h = _out_size.height;
105 _cmptparm[i].prec = 12;
106 _cmptparm[i].bpp = 12;
107 _cmptparm[i].sgnd = 0;
110 _image = opj_image_create (3, &_cmptparm[0], CLRSPC_SRGB);
112 throw EncodeError ("could not create libopenjpeg image");
117 _image->x1 = _out_size.width;
118 _image->y1 = _out_size.height;
121 DCPVideoFrame::~DCPVideoFrame ()
124 opj_image_destroy (_image);
128 opj_cio_close (_cio);
132 opj_destroy_compress (_cinfo);
136 free (_parameters->cp_comment);
137 free (_parameters->cp_matrice);
143 /** J2K-encode this frame on the local host.
144 * @return Encoded data.
146 shared_ptr<EncodedData>
147 DCPVideoFrame::encode_locally ()
149 shared_ptr<Image> prepared = _input;
151 if (!_post_process.empty ()) {
152 prepared = prepared->post_process (_post_process);
155 prepared = prepared->scale_and_convert_to_rgb (_out_size, _padding, _scaler);
157 create_openjpeg_container ();
159 int const size = _out_size.width * _out_size.height;
169 /* Copy our RGB into the openjpeg container, converting to XYZ in the process */
171 uint8_t* p = prepared->data()[0];
172 for (int i = 0; i < size; ++i) {
173 /* In gamma LUT (converting 8-bit input to 12-bit) */
174 s.r = lut_in[_colour_lut_index][*p++ << 4];
175 s.g = lut_in[_colour_lut_index][*p++ << 4];
176 s.b = lut_in[_colour_lut_index][*p++ << 4];
178 /* RGB to XYZ Matrix */
179 d.x = ((s.r * color_matrix[_colour_lut_index][0][0]) + (s.g * color_matrix[_colour_lut_index][0][1]) + (s.b * color_matrix[_colour_lut_index][0][2]));
180 d.y = ((s.r * color_matrix[_colour_lut_index][1][0]) + (s.g * color_matrix[_colour_lut_index][1][1]) + (s.b * color_matrix[_colour_lut_index][1][2]));
181 d.z = ((s.r * color_matrix[_colour_lut_index][2][0]) + (s.g * color_matrix[_colour_lut_index][2][1]) + (s.b * color_matrix[_colour_lut_index][2][2]));
184 d.x = d.x * DCI_COEFFICENT * (DCI_LUT_SIZE - 1);
185 d.y = d.y * DCI_COEFFICENT * (DCI_LUT_SIZE - 1);
186 d.z = d.z * DCI_COEFFICENT * (DCI_LUT_SIZE - 1);
189 _image->comps[0].data[i] = lut_out[LO_DCI][(int) d.x];
190 _image->comps[1].data[i] = lut_out[LO_DCI][(int) d.y];
191 _image->comps[2].data[i] = lut_out[LO_DCI][(int) d.z];
194 /* Set the max image and component sizes based on frame_rate */
195 int const max_cs_len = ((float) _j2k_bandwidth) / 8 / _frames_per_second;
196 int const max_comp_size = max_cs_len / 1.25;
198 /* Set encoding parameters to default values */
199 _parameters = new opj_cparameters_t;
200 opj_set_default_encoder_parameters (_parameters);
202 /* Set default cinema parameters */
203 _parameters->tile_size_on = false;
204 _parameters->cp_tdx = 1;
205 _parameters->cp_tdy = 1;
208 _parameters->tp_flag = 'C';
209 _parameters->tp_on = 1;
211 /* Tile and Image shall be at (0,0) */
212 _parameters->cp_tx0 = 0;
213 _parameters->cp_ty0 = 0;
214 _parameters->image_offset_x0 = 0;
215 _parameters->image_offset_y0 = 0;
217 /* Codeblock size = 32x32 */
218 _parameters->cblockw_init = 32;
219 _parameters->cblockh_init = 32;
220 _parameters->csty |= 0x01;
222 /* The progression order shall be CPRL */
223 _parameters->prog_order = CPRL;
226 _parameters->roi_compno = -1;
228 _parameters->subsampling_dx = 1;
229 _parameters->subsampling_dy = 1;
232 _parameters->irreversible = 1;
234 _parameters->tcp_rates[0] = 0;
235 _parameters->tcp_numlayers++;
236 _parameters->cp_disto_alloc = 1;
237 _parameters->cp_rsiz = CINEMA2K;
238 _parameters->cp_comment = strdup ("DVD-o-matic");
239 _parameters->cp_cinema = CINEMA2K_24;
241 /* 3 components, so use MCT */
242 _parameters->tcp_mct = 1;
245 _parameters->max_comp_size = max_comp_size;
246 _parameters->tcp_rates[0] = ((float) (3 * _image->comps[0].w * _image->comps[0].h * _image->comps[0].prec)) / (max_cs_len * 8);
248 /* get a J2K compressor handle */
249 _cinfo = opj_create_compress (CODEC_J2K);
251 /* Set event manager to null (openjpeg 1.3 bug) */
252 _cinfo->event_mgr = 0;
254 /* Setup the encoder parameters using the current image and user parameters */
255 opj_setup_encoder (_cinfo, _parameters, _image);
257 _cio = opj_cio_open ((opj_common_ptr) _cinfo, 0, 0);
259 int const r = opj_encode (_cinfo, _cio, _image, 0);
261 throw EncodeError ("jpeg2000 encoding failed");
266 s << "Finished locally-encoded frame " << _frame;
267 _log->log (s.str ());
270 return shared_ptr<EncodedData> (new LocallyEncodedData (_cio->buffer, cio_tell (_cio)));
273 /** Send this frame to a remote server for J2K encoding, then read the result.
274 * @param serv Server to send to.
275 * @return Encoded data.
277 shared_ptr<EncodedData>
278 DCPVideoFrame::encode_remotely (ServerDescription const * serv)
280 asio::io_service io_service;
281 asio::ip::tcp::resolver resolver (io_service);
282 asio::ip::tcp::resolver::query query (serv->host_name(), boost::lexical_cast<string> (Config::instance()->server_port ()));
283 asio::ip::tcp::resolver::iterator endpoint_iterator = resolver.resolve (query);
287 socket.connect (*endpoint_iterator, 30);
291 << _input->size().width << " " << _input->size().height << " "
292 << _input->pixel_format() << " "
293 << _out_size.width << " " << _out_size.height << " "
295 << _scaler->id () << " "
297 << _frames_per_second << " "
298 << (_post_process.empty() ? "none" : _post_process) << " "
299 << Config::instance()->colour_lut_index () << " "
300 << Config::instance()->j2k_bandwidth () << " ";
302 for (int i = 0; i < _input->components(); ++i) {
303 s << _input->line_size()[i] << " ";
306 socket.write ((uint8_t *) s.str().c_str(), s.str().length() + 1, 30);
308 for (int i = 0; i < _input->components(); ++i) {
309 socket.write (_input->data()[i], _input->line_size()[i] * _input->lines(i), 30);
313 socket.read_indefinite ((uint8_t *) buffer, sizeof (buffer), 30);
314 socket.consume (strlen (buffer) + 1);
315 shared_ptr<EncodedData> e (new RemotelyEncodedData (atoi (buffer)));
317 /* now read the rest */
318 socket.read_definite_and_consume (e->data(), e->size(), 30);
322 s << "Finished remotely-encoded frame " << _frame;
323 _log->log (s.str ());
329 /** Write this data to a J2K file.
330 * @param opt Options.
331 * @param frame Frame index.
334 EncodedData::write (shared_ptr<const Options> opt, int frame)
336 string const tmp_j2k = opt->frame_out_path (frame, true);
338 FILE* f = fopen (tmp_j2k.c_str (), "wb");
341 throw WriteFileError (tmp_j2k, errno);
344 fwrite (_data, 1, _size, f);
347 /* Rename the file from foo.j2c.tmp to foo.j2c now that it is complete */
348 filesystem::rename (tmp_j2k, opt->frame_out_path (frame, false));
351 /** Send this data to a socket.
352 * @param socket Socket
355 EncodedData::send (shared_ptr<Socket> socket)
359 socket->write ((uint8_t *) s.str().c_str(), s.str().length() + 1, 30);
360 socket->write (_data, _size, 30);
363 /** @param s Size of data in bytes */
364 RemotelyEncodedData::RemotelyEncodedData (int s)
365 : EncodedData (new uint8_t[s], s)
370 RemotelyEncodedData::~RemotelyEncodedData ()