+++ /dev/null
-/*
- 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 <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 boost::optional;
-
-static void
-help (string n)
-{
- cerr << "Syntax: " << n << " [OPTION] <FILE>\n"
- << " -v, --version show DCP-o-matic version\n"
- << " -h, --help show this help\n"
- << " -o, --output output directory\n"
- << "\n"
- << "<FILE> is the unencrypted .mp4 file.\n";
-}
-
-int
-main (int argc, char* argv[])
-{
- optional<boost::filesystem::path> output;
-
- 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'},
- };
-
- int c = getopt_long (argc, argv, "vho:", 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;
- }
- }
-
- if (optind >= argc) {
- help (argv[0]);
- exit (EXIT_FAILURE);
- }
-
- if (!output) {
- cerr << "You must specify --output-media or -o\n";
- exit (EXIT_FAILURE);
- }
-
- boost::filesystem::path input = argv[optind];
- boost::filesystem::path output_mp4 = *output / (input.filename().string() + ".ecinema");
-
- if (!boost::filesystem::is_directory(*output)) {
- boost::filesystem::create_directory (*output);
- }
-
- av_register_all ();
-
- 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("mp4", 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_copy_context (os->codec, is->codec) < 0) {
- cerr << "Could not set up output stream.\n";
- exit (EXIT_FAILURE);
- }
-
- switch (os->codec->codec_type) {
- case AVMEDIA_TYPE_VIDEO:
- os->time_base = is->time_base;
- os->avg_frame_rate = is->avg_frame_rate;
- 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;
- break;
- default:
- /* XXX */
- break;
- }
- }
-
- if (avio_open2 (&output_fc->pb, output_mp4.string().c_str(), AVIO_FLAG_WRITE, 0, 0) < 0) {
- cerr << "Could not open output file `" << output_mp4.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);
-
- DecryptedECinemaKDM decrypted_kdm (id, output_mp4.filename().string(), key);
- EncryptedECinemaKDM encrypted_kdm = decrypted_kdm.encrypt (Config::instance()->decryption_chain()->leaf());
- cout << encrypted_kdm.as_xml() << "\n";
-}
projects / dcpomatic.git / blobdiff