Subsonic API: do not use ffmpeg to remux the files when transcoding is off. fixes #36

2020-03-08 17:03:49 +01:00
parent e1755342a4
commit 7d5654cb7d
18 changed files with 643 additions and 312 deletions
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2020 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS 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 LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "AvTranscodeResourceHandler.hpp"
+
+namespace Av
+{
+
+	std::unique_ptr<IResourceHandler>
+	createTranscodeResourceHandler(const std::filesystem::path& trackPath, const TranscodeParameters& parameters)
+	{
+		return std::make_unique<TranscodeResourceHandler>(trackPath, parameters);
+	}
+
+	// TODO set some nice HTTP return code
+
+	TranscodeResourceHandler::TranscodeResourceHandler(const std::filesystem::path& trackPath, const TranscodeParameters& parameters)
+		: _transcoder {trackPath, parameters}
+	{
+		_transcoder.start();
+	}
+
+	void
+	TranscodeResourceHandler::processRequest(const Wt::Http::Request& /*request*/, Wt::Http::Response& response)
+	{
+		response.setMimeType(_transcoder.getOutputMimeType());
+
+		if (!_transcoder.isComplete())
+		{
+			std::vector<unsigned char> buffer;
+
+			_transcoder.process(buffer, _chunkSize);
+			response.out().write(reinterpret_cast<const char *>(&buffer[0]), buffer.size());
+		}
+	}
+
+	bool
+	TranscodeResourceHandler::isFinished() const
+	{
+		return _transcoder.isComplete();
+	}
+}
+
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS 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 LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <filesystem>
+#include "av/AvTranscoder.hpp"
+#include "utils/IResourceHandler.hpp"
+
+namespace Av
+{
+
+	class TranscodeResourceHandler final : public IResourceHandler
+	{
+		public:
+			TranscodeResourceHandler(const std::filesystem::path& trackPath, const TranscodeParameters& parameters);
+
+		private:
+
+			void processRequest(const Wt::Http::Request& request, Wt::Http::Response& reponse) override;
+			bool isFinished() const override;
+
+			static constexpr std::size_t _chunkSize {262144};
+			const std::filesystem::path _trackPath;
+			Transcoder _transcoder;
+
+	};
+}
+