build: split the engine into liboakengine.so; worker drops the UI entirely

Physical split: app/{audio,cli,codec,common,config,node,pluginSupport, render,task,timeline,undo,tool,shaders} plus coreengine, version and ui/icons+colorcoding move to a new top-level engine/ tree, built as liboakengine.so (shared). The render backends (oakgl/oakvulkan) move with it and link the engine library instead of embedding a static render-core subset (libolive-rendercore is gone). - oak-render-worker now links liboakengine instead of the whole libolive-editor object set: 336MB -> 2.9MB, no Qt Widgets UI - the editor links liboakengine for the engine and keeps only UI objects in libolive-editor - install/packaging: GNUInstallDirs libdir on Linux, bundle copy on macOS, oakengine.dll staged for NSIS, AppImage validation entry - fix backend lookup for the new layout: DynamicRenderer searched ../app but backends now live in engine/; a stale pre-split liboakgl in the build tree got dlopened instead, re-initialized and later destroyed the interposed engine statics (full-suite segfault at DialogSequenceParameterTab, found via gdb watchpoint)
2026-07-20 03:23:28 +08:00
parent 026ff94b5e
commit 28c4426236
604 changed files with 243 additions and 172 deletions
@@ -0,0 +1,152 @@
+/*
+ * Oak Video Editor - Non-Linear Video Editor
+ * Copyright (C) 2026 Oak Team
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef OAK_PROXYMANAGER_H
+#define OAK_PROXYMANAGER_H
+
+#include <QMutex>
+#include <QObject>
+#include <QString>
+#include <QVector>
+
+#include "task/task.h"
+
+namespace olive
+{
+
+class ProxyTask;
+
+class ProxyManager : public QObject {
+	Q_OBJECT
+public:
+	static void create_instance()
+	{
+		if (!instance_) {
+			instance_ = new ProxyManager();
+		}
+	}
+
+	static void destroy_instance()
+	{
+		delete instance_;
+		instance_ = nullptr;
+	}
+
+	static ProxyManager *instance()
+	{
+		return instance_;
+	}
+
+	enum ProxyState {
+		k_proxy_missing,
+		k_proxy_generating,
+		k_proxy_ready,
+		k_proxy_failed
+	};
+
+	struct ProxyParams {
+		int width = 1280;
+		int height = 720;
+		/**
+		 * @brief Source resolution divider (1 = use absolute width/height,
+		 * 2/4/8 = fraction of the source resolution)
+		 */
+		int divider = 1;
+		int version = 1;
+		QString extension = QStringLiteral("mp4");
+		int crf = 23;
+		QString preset = QStringLiteral("veryfast");
+		bool include_audio = true;
+	};
+
+	struct Proxy {
+		ProxyState state = k_proxy_missing;
+		QString filename;
+		ProxyTask *task = nullptr;
+	};
+
+	static QString get_proxy_directory(const QString &cache_path);
+
+	static QString get_proxy_filename(const QString &cache_path,
+									const QString &source_filename,
+									int stream_index,
+									const ProxyParams &params);
+
+	static QString get_working_proxy_filename(const QString &proxy_filename);
+
+	static ProxyState get_proxy_state(const QString &proxy_filename);
+
+	static QString proxy_state_to_string(ProxyState state);
+
+	static ProxyState proxy_state_from_string(const QString &state);
+
+	/**
+	 * @brief Returns true if a proxy filename generated by GetProxyFilename()
+	 * indicates the proxy contains audio streams
+	 */
+	static bool proxy_filename_has_audio(const QString &proxy_filename);
+
+	/**
+	 * @brief Builds proxy parameters from the global application config
+	 */
+	static ProxyParams proxy_params_from_config();
+
+	/**
+	 * @brief Locates an ffmpeg executable for proxy generation
+	 *
+	 * Resolution order: the explicitly configured path (if non-empty and an
+	 * existing executable file), then the system PATH, then common
+	 * platform-specific install locations. Returns an empty string if no
+	 * executable could be found.
+	 */
+	static QString find_f_fmpeg_executable(const QString &configured_path);
+
+	Proxy get_or_start_proxy(const QString &cache_path,
+						  const QString &source_filename, int stream_index,
+						  const ProxyParams &params);
+
+signals:
+	void proxy_ready(const QString &source_filename, int stream_index,
+					const QString &proxy_filename);
+	void proxy_finished(const QString &source_filename, int stream_index,
+					   const QString &proxy_filename, ProxyState state);
+
+private:
+	ProxyManager() = default;
+
+	static ProxyManager *instance_;
+
+	struct ProxyData {
+		QString source_filename;
+		int stream_index = -1;
+		ProxyParams params;
+		ProxyTask *task = nullptr;
+		QString working_filename;
+		QString finished_filename;
+	};
+
+	QMutex mutex_;
+	QVector<ProxyData> proxying_;
+
+private slots:
+	void proxy_task_finished(Task *task, bool succeeded);
+};
+
+}
+
+#endif // OAK_PROXYMANAGER_H