+/*
+ Copyright (C) 2018 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"
+extern "C" {
+#include <libavformat/avformat.h>
+}
+#include <boost/filesystem.hpp>
+#include <boost/optional.hpp>
+#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"
+ << "\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 or -o\n";
+ exit (EXIT_FAILURE);
+ }
+
+ boost::filesystem::path input = argv[optind];
+ boost::filesystem::path output_mp4 = *output / (input.filename().string() + ".ecinema");
+
+ if (mkdir(output->c_str(), 0777) < 0) {
+ cerr << "Could not create output directory `" << output->string() << "'\n";
+ exit (EXIT_FAILURE);
+ }
+
+ 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);
+ }
+
+ if (avformat_write_header (output_fc, 0) < 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);
+}