swaroop: add --kdm option to dcpomatic2_ecinema.
[dcpomatic.git] / src / tools / dcpomatic_ecinema.cc
index 76305d12de55d11ac066528bd6121ce36e2c1a53..f0ba80b35c18e82292ffacb908fac99ccf806ecf 100644 (file)
@@ -21,6 +21,7 @@
 #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>
@@ -38,6 +39,7 @@ extern "C" {
 using std::string;
 using std::cerr;
 using std::cout;
+using std::ofstream;
 using boost::optional;
 
 static void
@@ -47,6 +49,8 @@ help (string 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            KDM output filename (defaults to stdout)\n"
             << "\n"
             << "<FILE> is the unencrypted .mp4 file.\n";
 }
@@ -55,16 +59,20 @@ int
 main (int argc, char* argv[])
 {
        optional<boost::filesystem::path> output;
+       optional<boost::filesystem::path> format;
+       optional<boost::filesystem::path> kdm;
 
        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'},
+                       { "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' },
                };
 
-               int c = getopt_long (argc, argv, "vho:", long_options, &option_index);
+               int c = getopt_long (argc, argv, "vho:f:k:", long_options, &option_index);
 
                if (c == -1) {
                        break;
@@ -80,6 +88,12 @@ main (int argc, char* argv[])
                case 'o':
                        output = optarg;
                        break;
+               case 'f':
+                       format = optarg;
+                       break;
+               case 'k':
+                       kdm = optarg;
+                       break;
                }
        }
 
@@ -93,8 +107,17 @@ main (int argc, char* argv[])
                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);
+       }
+
        boost::filesystem::path input = argv[optind];
-       boost::filesystem::path output_mp4 = *output / (input.filename().string() + ".ecinema");
+       boost::filesystem::path output_file = *output / (input.filename().string() + ".ecinema");
 
        if (!boost::filesystem::is_directory(*output)) {
                boost::filesystem::create_directory (*output);
@@ -114,20 +137,21 @@ main (int argc, char* argv[])
        }
 
        AVFormatContext* output_fc;
-       avformat_alloc_output_context2 (&output_fc, av_guess_format("mp4", 0, 0), 0, 0);
+       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_copy_context (os->codec, is->codec) < 0) {
+               if (avcodec_parameters_copy (os->codecpar, is->codecpar) < 0) {
                        cerr << "Could not set up output stream.\n";
                        exit (EXIT_FAILURE);
                }
 
-               switch (os->codec->codec_type) {
+               os->avg_frame_rate = is->avg_frame_rate;
+
+               switch (is->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;
@@ -140,6 +164,10 @@ main (int argc, char* argv[])
                        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 */
@@ -147,14 +175,23 @@ main (int argc, char* argv[])
                }
        }
 
-       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";
+       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";
@@ -180,5 +217,13 @@ main (int argc, char* argv[])
        avformat_free_context (input_fc);
        avformat_free_context (output_fc);
 
-       DecryptedECinemaKDM kdm (key);
+       DecryptedECinemaKDM decrypted_kdm (id, output_file.filename().string(), key, optional<dcp::LocalTime>(), optional<dcp::LocalTime>());
+       EncryptedECinemaKDM encrypted_kdm = decrypted_kdm.encrypt (Config::instance()->decryption_chain()->leaf());
+
+       if (kdm) {
+               ofstream f(kdm->c_str());
+               f << encrypted_kdm.as_xml() << "\n";
+       } else {
+               cout << encrypted_kdm.as_xml() << "\n";
+       }
 }