DCPVideoFrame -> DCPVideo and PlayerVideoFrame -> PlayerVideo.

1 files changed, 403 insertions, 0 deletions

diff --git a/src/lib/dcp_video.cc b/src/lib/dcp_video.cc
new file mode 100644
index 000000000..8d4a5925f
--- /dev/null
+++ b/src/lib/dcp_video.cc
@@ -0,0 +1,403 @@
+/*
+    Copyright (C) 2012-2014 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.
+
+*/
+
+/** @file  src/dcp_video_frame.cc
+ *  @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.
+ */
+
+#include <stdint.h>
+#include <cstring>
+#include <cstdlib>
+#include <stdexcept>
+#include <cstdio>
+#include <iomanip>
+#include <sstream>
+#include <iostream>
+#include <fstream>
+#include <unistd.h>
+#include <errno.h>
+#include <boost/array.hpp>
+#include <boost/asio.hpp>
+#include <boost/filesystem.hpp>
+#include <boost/lexical_cast.hpp>
+#include <dcp/gamma_lut.h>
+#include <dcp/xyz_frame.h>
+#include <dcp/rgb_xyz.h>
+#include <dcp/colour_matrix.h>
+#include <dcp/raw_convert.h>
+#include <libcxml/cxml.h>
+#include "film.h"
+#include "dcp_video.h"
+#include "config.h"
+#include "exceptions.h"
+#include "server.h"
+#include "util.h"
+#include "scaler.h"
+#include "image.h"
+#include "log.h"
+#include "cross.h"
+#include "player_video.h"
+
+#define LOG_GENERAL(...) _log->log (String::compose (__VA_ARGS__), Log::TYPE_GENERAL);
+
+#include "i18n.h"
+
+using std::string;
+using std::stringstream;
+using std::cout;
+using boost::shared_ptr;
+using boost::lexical_cast;
+using dcp::Size;
+using dcp::raw_convert;
+
+#define DCI_COEFFICENT (48.0 / 52.37)
+
+/** Construct a DCP video frame.
+ *  @param frame Input frame.
+ *  @param index Index of the frame within the DCP.
+ *  @param bw J2K bandwidth to use (see Config::j2k_bandwidth ())
+ *  @param l Log to write to.
+ */
+DCPVideo::DCPVideo (
+	shared_ptr<const PlayerVideo> frame, int index, int dcp_fps, int bw, Resolution r, shared_ptr<Log> l
+	)
+	: _frame (frame)
+	, _index (index)
+	, _frames_per_second (dcp_fps)
+	, _j2k_bandwidth (bw)
+	, _resolution (r)
+	, _log (l)
+{
+	
+}
+
+DCPVideo::DCPVideo (shared_ptr<const PlayerVideo> frame, shared_ptr<const cxml::Node> node, shared_ptr<Log> log)
+	: _frame (frame)
+	, _log (log)
+{
+	_index = node->number_child<int> ("Index");
+	_frames_per_second = node->number_child<int> ("FramesPerSecond");
+	_j2k_bandwidth = node->number_child<int> ("J2KBandwidth");
+	_resolution = Resolution (node->optional_number_child<int>("Resolution").get_value_or (RESOLUTION_2K));
+}
+
+/** J2K-encode this frame on the local host.
+ *  @return Encoded data.
+ */
+shared_ptr<EncodedData>
+DCPVideo::encode_locally ()
+{
+	shared_ptr<dcp::GammaLUT> in_lut = dcp::GammaLUT::cache.get (
+		12, _frame->colour_conversion().input_gamma, _frame->colour_conversion().input_gamma_linearised
+		);
+	
+	/* XXX: libdcp should probably use boost */
+	
+	double matrix[3][3];
+	for (int i = 0; i < 3; ++i) {
+		for (int j = 0; j < 3; ++j) {
+			matrix[i][j] = _frame->colour_conversion().matrix (i, j);
+		}
+	}
+
+	shared_ptr<dcp::XYZFrame> xyz = dcp::rgb_to_xyz (
+		_frame->image(),
+		in_lut,
+		dcp::GammaLUT::cache.get (16, 1 / _frame->colour_conversion().output_gamma, false),
+		matrix
+		);
+
+	/* Set the max image and component sizes based on frame_rate */
+	int max_cs_len = ((float) _j2k_bandwidth) / 8 / _frames_per_second;
+	if (_frame->eyes() == EYES_LEFT || _frame->eyes() == EYES_RIGHT) {
+		/* In 3D we have only half the normal bandwidth per eye */
+		max_cs_len /= 2;
+	}
+	int const max_comp_size = max_cs_len / 1.25;
+
+	/* get a J2K compressor handle */
+	opj_cinfo_t* cinfo = opj_create_compress (CODEC_J2K);
+	if (cinfo == 0) {
+		throw EncodeError (N_("could not create JPEG2000 encoder"));
+	}
+
+	/* Set encoding parameters to default values */
+	opj_cparameters_t parameters;
+	opj_set_default_encoder_parameters (&parameters);
+
+	/* Set default cinema parameters */
+	parameters.tile_size_on = false;
+	parameters.cp_tdx = 1;
+	parameters.cp_tdy = 1;
+	
+	/* Tile part */
+	parameters.tp_flag = 'C';
+	parameters.tp_on = 1;
+	
+	/* Tile and Image shall be at (0,0) */
+	parameters.cp_tx0 = 0;
+	parameters.cp_ty0 = 0;
+	parameters.image_offset_x0 = 0;
+	parameters.image_offset_y0 = 0;
+
+	/* Codeblock size = 32x32 */
+	parameters.cblockw_init = 32;
+	parameters.cblockh_init = 32;
+	parameters.csty |= 0x01;
+	
+	/* The progression order shall be CPRL */
+	parameters.prog_order = CPRL;
+	
+	/* No ROI */
+	parameters.roi_compno = -1;
+	
+	parameters.subsampling_dx = 1;
+	parameters.subsampling_dy = 1;
+	
+	/* 9-7 transform */
+	parameters.irreversible = 1;
+	
+	parameters.tcp_rates[0] = 0;
+	parameters.tcp_numlayers++;
+	parameters.cp_disto_alloc = 1;
+	parameters.cp_rsiz = _resolution == RESOLUTION_2K ? CINEMA2K : CINEMA4K;
+	if (_resolution == RESOLUTION_4K) {
+		parameters.numpocs = 2;
+		parameters.POC[0].tile = 1;
+		parameters.POC[0].resno0 = 0; 
+		parameters.POC[0].compno0 = 0;
+		parameters.POC[0].layno1 = 1;
+		parameters.POC[0].resno1 = parameters.numresolution - 1;
+		parameters.POC[0].compno1 = 3;
+		parameters.POC[0].prg1 = CPRL;
+		parameters.POC[1].tile = 1;
+		parameters.POC[1].resno0 = parameters.numresolution - 1; 
+		parameters.POC[1].compno0 = 0;
+		parameters.POC[1].layno1 = 1;
+		parameters.POC[1].resno1 = parameters.numresolution;
+		parameters.POC[1].compno1 = 3;
+		parameters.POC[1].prg1 = CPRL;
+	}
+	
+	parameters.cp_comment = strdup (N_("DCP-o-matic"));
+	parameters.cp_cinema = _resolution == RESOLUTION_2K ? CINEMA2K_24 : CINEMA4K_24;
+
+	/* 3 components, so use MCT */
+	parameters.tcp_mct = 1;
+	
+	/* set max image */
+	parameters.max_comp_size = max_comp_size;
+	parameters.tcp_rates[0] = ((float) (3 * xyz->size().width * xyz->size().height * 12)) / (max_cs_len * 8);
+
+	/* Set event manager to null (openjpeg 1.3 bug) */
+	cinfo->event_mgr = 0;
+
+	/* Setup the encoder parameters using the current image and user parameters */
+	opj_setup_encoder (cinfo, &parameters, xyz->opj_image ());
+
+	opj_cio_t* cio = opj_cio_open ((opj_common_ptr) cinfo, 0, 0);
+	if (cio == 0) {
+		opj_destroy_compress (cinfo);
+		throw EncodeError (N_("could not open JPEG2000 stream"));
+	}
+
+	int const r = opj_encode (cinfo, cio, xyz->opj_image(), 0);
+	if (r == 0) {
+		opj_cio_close (cio);
+		opj_destroy_compress (cinfo);
+		throw EncodeError (N_("JPEG2000 encoding failed"));
+	}
+
+	switch (_frame->eyes()) {
+	case EYES_BOTH:
+		LOG_GENERAL (N_("Finished locally-encoded frame %1 for mono"), _index);
+		break;
+	case EYES_LEFT:
+		LOG_GENERAL (N_("Finished locally-encoded frame %1 for L"), _index);
+		break;
+	case EYES_RIGHT:
+		LOG_GENERAL (N_("Finished locally-encoded frame %1 for R"), _index);
+		break;
+	default:
+		break;
+	}
+
+	shared_ptr<EncodedData> enc (new LocallyEncodedData (cio->buffer, cio_tell (cio)));
+
+	opj_cio_close (cio);
+	free (parameters.cp_comment);
+	opj_destroy_compress (cinfo);
+
+	return enc;
+}
+
+/** Send this frame to a remote server for J2K encoding, then read the result.
+ *  @param serv Server to send to.
+ *  @return Encoded data.
+ */
+shared_ptr<EncodedData>
+DCPVideo::encode_remotely (ServerDescription serv)
+{
+	boost::asio::io_service io_service;
+	boost::asio::ip::tcp::resolver resolver (io_service);
+	boost::asio::ip::tcp::resolver::query query (serv.host_name(), raw_convert<string> (Config::instance()->server_port_base ()));
+	boost::asio::ip::tcp::resolver::iterator endpoint_iterator = resolver.resolve (query);
+
+	shared_ptr<Socket> socket (new Socket);
+
+	socket->connect (*endpoint_iterator);
+
+	/* Collect all XML metadata */
+	xmlpp::Document doc;
+	xmlpp::Element* root = doc.create_root_node ("EncodingRequest");
+	root->add_child("Version")->add_child_text (raw_convert<string> (SERVER_LINK_VERSION));
+	add_metadata (root);
+
+	LOG_GENERAL (N_("Sending frame %1 to remote"), _index);
+	
+	/* Send XML metadata */
+	stringstream xml;
+	doc.write_to_stream (xml, "UTF-8");
+	socket->write (xml.str().length() + 1);
+	socket->write ((uint8_t *) xml.str().c_str(), xml.str().length() + 1);
+
+	/* Send binary data */
+	_frame->send_binary (socket);
+
+	/* Read the response (JPEG2000-encoded data); this blocks until the data
+	   is ready and sent back.
+	*/
+	shared_ptr<EncodedData> e (new RemotelyEncodedData (socket->read_uint32 ()));
+	socket->read (e->data(), e->size());
+
+	LOG_GENERAL (N_("Finished remotely-encoded frame %1"), _index);
+	
+	return e;
+}
+
+void
+DCPVideo::add_metadata (xmlpp::Element* el) const
+{
+	el->add_child("Index")->add_child_text (raw_convert<string> (_index));
+	el->add_child("FramesPerSecond")->add_child_text (raw_convert<string> (_frames_per_second));
+	el->add_child("J2KBandwidth")->add_child_text (raw_convert<string> (_j2k_bandwidth));
+	el->add_child("Resolution")->add_child_text (raw_convert<string> (int (_resolution)));
+	_frame->add_metadata (el);
+}
+
+Eyes
+DCPVideo::eyes () const
+{
+	return _frame->eyes ();
+}
+
+EncodedData::EncodedData (int s)
+	: _data (new uint8_t[s])
+	, _size (s)
+{
+
+}
+
+EncodedData::EncodedData (boost::filesystem::path file)
+{
+	_size = boost::filesystem::file_size (file);
+	_data = new uint8_t[_size];
+
+	FILE* f = fopen_boost (file, "rb");
+	if (!f) {
+		throw FileError (_("could not open file for reading"), file);
+	}
+	
+	size_t const r = fread (_data, 1, _size, f);
+	if (r != size_t (_size)) {
+		fclose (f);
+		throw FileError (_("could not read encoded data"), file);
+	}
+		
+	fclose (f);
+}
+
+
+EncodedData::~EncodedData ()
+{
+	delete[] _data;
+}
+
+/** Write this data to a J2K file.
+ *  @param Film Film.
+ *  @param frame DCP frame index.
+ */
+void
+EncodedData::write (shared_ptr<const Film> film, int frame, Eyes eyes) const
+{
+	boost::filesystem::path const tmp_j2c = film->j2c_path (frame, eyes, true);
+
+	FILE* f = fopen_boost (tmp_j2c, "wb");
+	
+	if (!f) {
+		throw WriteFileError (tmp_j2c, errno);
+	}
+
+	fwrite (_data, 1, _size, f);
+	fclose (f);
+
+	boost::filesystem::path const real_j2c = film->j2c_path (frame, eyes, false);
+
+	/* Rename the file from foo.j2c.tmp to foo.j2c now that it is complete */
+	boost::filesystem::rename (tmp_j2c, real_j2c);
+}
+
+void
+EncodedData::write_info (shared_ptr<const Film> film, int frame, Eyes eyes, dcp::FrameInfo fin) const
+{
+	boost::filesystem::path const info = film->info_path (frame, eyes);
+	FILE* h = fopen_boost (info, "w");
+	fin.write (h);
+	fclose (h);
+}
+
+/** Send this data to a socket.
+ *  @param socket Socket
+ */
+void
+EncodedData::send (shared_ptr<Socket> socket)
+{
+	socket->write (_size);
+	socket->write (_data, _size);
+}
+
+LocallyEncodedData::LocallyEncodedData (uint8_t* d, int s)
+	: EncodedData (s)
+{
+	memcpy (_data, d, s);
+}
+
+/** @param s Size of data in bytes */
+RemotelyEncodedData::RemotelyEncodedData (int s)
+	: EncodedData (s)
+{
+
+}