Add 'OBS stats' condition type (#414)

It supports various different types of stats:
* fps
* cpu
* ram
* frame time
* skipped frames
* missed frames
* dropped frames
* data size sent
* bitrate

src/headers/macro-condition-obs-stats.hpp

@@ -0,0 +1,118 @@
+#pragma once
+#include "macro.hpp"
+#include <QWidget>
+#include <QComboBox>
+#include <QDoubleSpinBox>
+#include <util/platform.h>
+
+enum class StatsType {
+	FPS,
+	CPU_USAGE,
+	DISK_USAGE, // not implemented
+	MEM_USAGE,
+	AVG_FRAMETIME,
+	RENDER_LAG,
+	ENCODE_LAG,
+	STREAM_DROPPED_FRAMES,
+	STREAM_BITRATE,
+	STREAM_MB_SENT,
+	RECORDING_DROPPED_FRAMES, // not sure if this makes sense
+	RECORDING_BITRATE,
+	RECORDING_MB_SENT,
+};
+
+enum class StatsCondition {
+	ABOVE,
+	EQUALS,
+	BELOW,
+};
+
+class MacroConditionStats : public MacroCondition {
+public:
+	MacroConditionStats(Macro *m);
+	~MacroConditionStats();
+	bool CheckCondition();
+	bool Save(obs_data_t *obj);
+	bool Load(obs_data_t *obj);
+	std::string GetShortDesc();
+	std::string GetId() { return id; };
+	static std::shared_ptr<MacroCondition> Create(Macro *m)
+	{
+		return std::make_shared<MacroConditionStats>(m);
+	}
+
+	double _value = 0;
+	StatsType _type = StatsType::FPS;
+	StatsCondition _condition = StatsCondition::ABOVE;
+
+private:
+	bool CheckFPS();
+	bool CheckCPU();
+	bool CheckMemory();
+	bool CheckAvgFrametime();
+	bool CheckRenderLag();
+	bool CheckEncodeLag();
+	bool CheckStreamDroppedFrames();
+	bool CheckStreamBitrate();
+	bool CheckStreamMBSent();
+	bool CheckRecordingDroppedFrames();
+	bool CheckRecordingBitrate();
+	bool CheckRecordingMBSent();
+
+	os_cpu_usage_info_t *_cpu_info = nullptr;
+	uint32_t _first_encoded = 0xFFFFFFFF;
+	uint32_t _first_skipped = 0xFFFFFFFF;
+	uint32_t _first_rendered = 0xFFFFFFFF;
+	uint32_t _first_lagged = 0xFFFFFFFF;
+	struct OutputInfo {
+		void Update(obs_output_t *output);
+
+		uint64_t lastBytesSent = 0;
+		uint64_t lastBytesSentTime = 0;
+		int first_total = 0;
+		int first_dropped = 0;
+		double dropped_relative = 0.0;
+		long double kbps = 0.0l;
+	};
+	OutputInfo _streamInfo;
+	OutputInfo _recordingInfo;
+
+	static bool _registered;
+	static const std::string id;
+};
+
+class MacroConditionStatsEdit : public QWidget {
+	Q_OBJECT
+
+public:
+	MacroConditionStatsEdit(
+		QWidget *parent,
+		std::shared_ptr<MacroConditionStats> cond = nullptr);
+	void UpdateEntryData();
+	static QWidget *Create(QWidget *parent,
+			       std::shared_ptr<MacroCondition> cond)
+	{
+		return new MacroConditionStatsEdit(
+			parent,
+			std::dynamic_pointer_cast<MacroConditionStats>(cond));
+	}
+
+private slots:
+	void ValueChanged(double value);
+	void StatsTypeChanged(int type);
+	void ConditionChanged(int cond);
+
+signals:
+	void HeaderInfoChanged(const QString &);
+
+protected:
+	QComboBox *_stats;
+	QComboBox *_condition;
+	QDoubleSpinBox *_value;
+	std::shared_ptr<MacroConditionStats> _entryData;
+
+private:
+	void SetWidgetVisibility();
+
+	bool _loading = true;
+};