Unify disk_space_estimator.cpp from Nageru and Futatabi.

[nageru] / nageru / disk_space_estimator.h

diff --git a/nageru/disk_space_estimator.h b/nageru/disk_space_estimator.h
deleted file mode 100644 (file)
index ce81321..0000000
--- a/nageru/disk_space_estimator.h
+++ /dev/null
@@ -1,55 +0,0 @@
-#ifndef _DISK_SPACE_ESTIMATOR_H
-#define _DISK_SPACE_ESTIMATOR_H
-
-// A class responsible for measuring how much disk there is left when we
-// store our video to disk, and how much recording time that equates to.
-// It gets callbacks from the Mux writing the stream to disk (which also
-// knows which filesystem the file is going to), makes its calculations,
-// and calls back to the MainWindow, which shows it to the user.
-//
-// The bitrate is measured over a simple 30-second sliding window.
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <atomic>
-#include <deque>
-#include <functional>
-#include <string>
-
-#include "shared/timebase.h"
-
-class DiskSpaceEstimator
-{
-public:
-       typedef std::function<void(off_t free_bytes, double estimated_seconds_left)> callback_t;
-       DiskSpaceEstimator(callback_t callback);
-
-       // Report that a video frame with the given pts has just been written
-       // to the given file, so the estimator should stat the file and see
-       // by how much it grew since last time. Called by the Mux object
-       // responsible for writing to the stream on disk.
-       //
-       // If the filename changed since last time, the estimation is reset.
-       // <pts> is taken to be in TIMEBASE units (see shared/timebase.h).
-       void report_write(const std::string &filename, uint64_t pts);
-
-private:
-       static constexpr int64_t window_length = 30 * TIMEBASE;
-
-       callback_t callback;
-       std::string last_filename;
-
-       struct MeasurePoint {
-               uint64_t pts;
-               off_t size;
-       };
-       std::deque<MeasurePoint> measure_points;
-       uint64_t last_pts_reported = 0;
-
-       // Metrics.
-       std::atomic<int64_t> metric_disk_free_bytes{-1};
-};
-
-extern DiskSpaceEstimator *global_disk_space_estimator;
-
-#endif  // !defined(_DISK_SPACE_ESTIMATOR_H)