1 files changed, 312 insertions, 0 deletions
diff --git a/src/tools/swaroop_dcpomatic_ecinema.cc b/src/tools/swaroop_dcpomatic_ecinema.cc
new file mode 100644
index 000000000..152194c48
--- /dev/null
+++ b/src/tools/swaroop_dcpomatic_ecinema.cc
@@ -0,0 +1,312 @@
+/*
+    Copyright (C) 2018-2019 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic 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.
+
+    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "lib/version.h"
+#include "lib/decrypted_ecinema_kdm.h"
+#include "lib/config.h"
+#include "lib/util.h"
+#include "lib/film.h"
+#include "lib/dcp_content.h"
+#include "lib/job_manager.h"
+#include "lib/cross.h"
+#include "lib/transcode_job.h"
+#include "lib/ffmpeg_encoder.h"
+#include "lib/signal_manager.h"
+#include "lib/video_content.h"
+#include "lib/ratio.h"
+#include <dcp/key.h>
+extern "C" {
+#include <libavformat/avformat.h>
+#include <libavutil/aes_ctr.h>
+}
+#include <boost/filesystem.hpp>
+#include <boost/optional.hpp>
+#include <openssl/rand.h>
+#include <getopt.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <string>
+#include <iostream>
+
+using std::string;
+using std::cerr;
+using std::cout;
+using std::ofstream;
+using boost::optional;
+using boost::shared_ptr;
+
+static void convert_dcp (
+	boost::filesystem::path input,
+	boost::filesystem::path output_file,
+	boost::optional<boost::filesystem::path> kdm,
+	int crf
+	);
+static void convert_ffmpeg (boost::filesystem::path input, boost::filesystem::path output_file, string format);
+static void write_kdm (string id, boost::filesystem::path name, dcp::Key key);
+
+static void
+help (string n)
+{
+	cerr << "Syntax: " << n << " [OPTION] <FILE>|<DIRECTORY>\n"
+	     << "  -v, --version        show DCP-o-matic version\n"
+	     << "  -h, --help           show this help\n"
+	     << "  -o, --output         output directory\n"
+	     << "  -f, --format         output format (mov or mp4; defaults to mov)\n"
+	     << "  -k, --kdm            DCP KDM filename (if required)\n"
+	     << "  -c, --crf            quality (CRF) when transcoding from DCP (0 is best, 51 is worst, defaults to 23)\n"
+	     << "\n"
+	     << "<FILE> is an unencrypted .mp4 file; <DIRECTORY> is a DCP directory.\n";
+}
+
+int
+main (int argc, char* argv[])
+{
+	optional<boost::filesystem::path> output;
+	optional<string> format;
+	optional<boost::filesystem::path> kdm;
+	int crf = 23;
+
+	int option_index = 0;
+	while (true) {
+		static struct option long_options[] = {
+			{ "version", no_argument, 0, 'v' },
+			{ "help", no_argument, 0, 'h' },
+			{ "output", required_argument, 0, 'o' },
+			{ "format", required_argument, 0, 'f' },
+			{ "kdm", required_argument, 0, 'k' },
+			{ "crf", required_argument, 0, 'c' },
+		};
+
+		int c = getopt_long (argc, argv, "vho:f:k:c:", long_options, &option_index);
+
+		if (c == -1) {
+			break;
+		}
+
+		switch (c) {
+		case 'v':
+			cout << "dcpomatic version " << dcpomatic_version << " " << dcpomatic_git_commit << "\n";
+			exit (EXIT_SUCCESS);
+		case 'h':
+			help (argv[0]);
+			exit (EXIT_SUCCESS);
+		case 'o':
+			output = optarg;
+			break;
+		case 'f':
+			format = optarg;
+			break;
+		case 'k':
+			kdm = optarg;
+			break;
+		case 'c':
+			crf = atoi(optarg);
+			break;
+		}
+	}
+
+	if (optind >= argc) {
+		help (argv[0]);
+		exit (EXIT_FAILURE);
+	}
+
+	if (!output) {
+		cerr << "You must specify --output-media or -o\n";
+		exit (EXIT_FAILURE);
+	}
+
+	if (!format) {
+		format = "mov";
+	}
+
+	if (*format != "mov" && *format != "mp4") {
+		cerr << "Invalid format specified: must be mov or mp4\n";
+		exit (EXIT_FAILURE);
+	}
+
+	dcpomatic_setup_path_encoding ();
+	dcpomatic_setup ();
+	signal_manager = new SignalManager ();
+
+	boost::filesystem::path input = argv[optind];
+	boost::filesystem::path output_file;
+	if (boost::filesystem::is_directory(input)) {
+		output_file = *output / (input.parent_path().filename().string() + ".ecinema");
+	} else {
+		output_file = *output / (input.filename().string() + ".ecinema");
+	}
+
+	if (!boost::filesystem::is_directory(*output)) {
+		boost::filesystem::create_directory (*output);
+	}
+
+	av_register_all ();
+
+	if (boost::filesystem::is_directory(input)) {
+		/* Assume input is a DCP */
+		convert_dcp (input, output_file, kdm, crf);
+	} else {
+		convert_ffmpeg (input, output_file, *format);
+	}
+}
+
+static void
+convert_ffmpeg (boost::filesystem::path input, boost::filesystem::path output_file, string format)
+{
+	AVFormatContext* input_fc = avformat_alloc_context ();
+	if (avformat_open_input(&input_fc, input.string().c_str(), 0, 0) < 0) {
+		cerr << "Could not open input file\n";
+		exit (EXIT_FAILURE);
+	}
+
+	if (avformat_find_stream_info (input_fc, 0) < 0) {
+		cerr << "Could not read stream information\n";
+		exit (EXIT_FAILURE);
+	}
+
+	AVFormatContext* output_fc;
+	avformat_alloc_output_context2 (&output_fc, av_guess_format(format.c_str(), 0, 0), 0, 0);
+
+	for (uint32_t i = 0; i < input_fc->nb_streams; ++i) {
+		AVStream* is = input_fc->streams[i];
+		AVStream* os = avformat_new_stream (output_fc, is->codec->codec);
+		if (avcodec_parameters_copy (os->codecpar, is->codecpar) < 0) {
+			cerr << "Could not set up output stream.\n";
+			exit (EXIT_FAILURE);
+		}
+
+		os->avg_frame_rate = is->avg_frame_rate;
+
+		switch (is->codec->codec_type) {
+		case AVMEDIA_TYPE_VIDEO:
+			os->time_base = is->time_base;
+			os->r_frame_rate = is->r_frame_rate;
+			os->sample_aspect_ratio = is->sample_aspect_ratio;
+			os->codec->time_base = is->codec->time_base;
+			os->codec->framerate = is->codec->framerate;
+			os->codec->pix_fmt = is->codec->pix_fmt;
+			break;
+		case AVMEDIA_TYPE_AUDIO:
+			os->codec->sample_fmt = is->codec->sample_fmt;
+			os->codec->bits_per_raw_sample = is->codec->bits_per_raw_sample;
+			os->codec->sample_rate = is->codec->sample_rate;
+			os->codec->channel_layout = is->codec->channel_layout;
+			os->codec->channels = is->codec->channels;
+			if (is->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE) {
+				/* XXX: fix incoming 24-bit files labelled lpcm, which apparently isn't allowed */
+				os->codecpar->codec_tag = MKTAG('i', 'n', '2', '4');
+			}
+			break;
+		default:
+			/* XXX */
+			break;
+		}
+	}
+
+	if (avio_open2 (&output_fc->pb, output_file.string().c_str(), AVIO_FLAG_WRITE, 0, 0) < 0) {
+		cerr << "Could not open output file `" << output_file.string() << "'\n";
+		exit (EXIT_FAILURE);
+	}
+
+	dcp::Key key (AES_CTR_KEY_SIZE);
+	AVDictionary* options = 0;
+	av_dict_set (&options, "encryption_key", key.hex().c_str(), 0);
+	/* XXX: is this OK? */
+	av_dict_set (&options, "encryption_kid", "00000000000000000000000000000000", 0);
+	av_dict_set (&options, "encryption_scheme", "cenc-aes-ctr", 0);
+
+	string id = dcp::make_uuid ();
+	if (av_dict_set(&output_fc->metadata, SWAROOP_ID_TAG, id.c_str(), 0) < 0) {
+		cerr << "Could not write ID to output.\n";
+		exit (EXIT_FAILURE);
+	}
+
+	if (avformat_write_header (output_fc, &options) < 0) {
+		cerr << "Could not write header to output.\n";
+		exit (EXIT_FAILURE);
+	}
+
+	AVPacket packet;
+	while (av_read_frame(input_fc, &packet) >= 0) {
+		AVStream* is = input_fc->streams[packet.stream_index];
+		AVStream* os = output_fc->streams[packet.stream_index];
+		packet.pts = av_rescale_q_rnd(packet.pts, is->time_base, os->time_base, (AVRounding) (AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
+		packet.dts = av_rescale_q_rnd(packet.dts, is->time_base, os->time_base, (AVRounding) (AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
+		packet.duration = av_rescale_q(packet.duration, is->time_base, os->time_base);
+		packet.pos = -1;
+		if (av_interleaved_write_frame (output_fc, &packet) < 0) {
+			cerr << "Could not write frame to output.\n";
+			exit (EXIT_FAILURE);
+		}
+	}
+
+	av_write_trailer (output_fc);
+
+	avformat_free_context (input_fc);
+	avformat_free_context (output_fc);
+
+	write_kdm (id, output_file, key);
+}
+
+static void
+write_kdm (string id, boost::filesystem::path name, dcp::Key key)
+{
+	DecryptedECinemaKDM decrypted_kdm (id, name.filename().string(), key, optional<dcp::LocalTime>(), optional<dcp::LocalTime>());
+	EncryptedECinemaKDM encrypted_kdm = decrypted_kdm.encrypt (Config::instance()->decryption_chain()->leaf());
+
+	ofstream f(string(name.string() + ".xml").c_str());
+	f << encrypted_kdm.as_xml() << "\n";
+}
+
+static void
+convert_dcp (
+	boost::filesystem::path input, boost::filesystem::path output_file, optional<boost::filesystem::path> kdm, int crf
+	)
+{
+	shared_ptr<Film> film (new Film(boost::optional<boost::filesystem::path>()));
+	shared_ptr<DCPContent> dcp (new DCPContent(input));
+	film->examine_and_add_content (dcp);
+	if (kdm) {
+		dcp->add_kdm (dcp::EncryptedKDM(dcp::file_to_string(*kdm)));
+	}
+
+	JobManager* jm = JobManager::instance ();
+	while (jm->work_to_do ()) {
+		while (signal_manager->ui_idle ()) {}
+		dcpomatic_sleep_seconds (1);
+	}
+	DCPOMATIC_ASSERT (!jm->errors());
+
+	film->set_container (Ratio::nearest_from_ratio(dcp->video->size().ratio()));
+	
+	string id = dcp::make_uuid ();
+	dcp::Key key (AES_CTR_KEY_SIZE);
+
+	shared_ptr<TranscodeJob> job (new TranscodeJob(film));
+	job->set_encoder (
+		shared_ptr<FFmpegEncoder>(
+			new FFmpegEncoder(film, job, output_file, EXPORT_FORMAT_H264_PCM, false, false, crf, key, id)
+			)
+		);
+	jm->add (job);
+	show_jobs_on_console (true);
+
+	write_kdm (id, output_file, key);
+}