Sort-of works.kakadu

1 files changed, 78 insertions, 0 deletions

diff --git a/src/lib/kakadu_j2k_encoder_thread.cc b/src/lib/kakadu_j2k_encoder_thread.cc
new file mode 100644
index 000000000..d8f2a0530
--- /dev/null
+++ b/src/lib/kakadu_j2k_encoder_thread.cc
@@ -0,0 +1,78 @@
+/*
+    Copyright (C) 2026 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 "cross.h"
+#include "dcpomatic_log.h"
+#include "dcp_video.h"
+#include "j2k_encoder.h"
+#include "kakadu_j2k_encoder_thread.h"
+#include "util.h"
+#include <boost/interprocess/sync/scoped_lock.hpp>
+
+#include "i18n.h"
+
+
+using std::make_shared;
+using std::shared_ptr;
+
+
+KakaduJ2KEncoderThread::KakaduJ2KEncoderThread(J2KEncoder& encoder)
+	: J2KSyncEncoderThread(encoder)
+{
+
+}
+
+
+void
+KakaduJ2KEncoderThread::log_thread_start() const
+{
+	start_of_thread("KakaduJ2KEncoder");
+	LOG_TIMING("start-encoder-thread thread={} server=localhost", thread_id());
+}
+
+
+shared_ptr<dcp::ArrayData>
+KakaduJ2KEncoderThread::encode(DCPVideo const& frame)
+{
+	auto shmem = _encoder.kakadu_shared_memory();
+	if (!shmem) {
+		LOG_ERROR(N_("Kakadu encode failed (no shared memory)"));
+		return {};
+	}
+
+	auto metadata = shmem->metadata();
+
+	std::cout << "Send an image.\n";
+	boost::interprocess::scoped_lock lm(metadata->mutex);
+	frame.convert_to_xyz(shmem->xyz());
+
+	metadata->request = true;
+	metadata->request_condition.notify_one();
+
+	while (!metadata->reply) {
+		metadata->reply_condition.wait(lm);
+	}
+	metadata->reply = false;
+	std::cout << "reading " << metadata->j2k_size << "\n";
+
+	return make_shared<dcp::ArrayData>(shmem->j2k(), metadata->j2k_size);
+}
+