+++ /dev/null
-#include "disk_space_estimator.h"
-
-#include <stdio.h>
-#include <sys/stat.h>
-#include <sys/statfs.h>
-#include <memory>
-
-#include "metrics.h"
-#include "timebase.h"
-
-DiskSpaceEstimator::DiskSpaceEstimator(DiskSpaceEstimator::callback_t callback)
- : callback(callback)
-{
- global_metrics.add("disk_free_bytes", &metric_disk_free_bytes, Metrics::TYPE_GAUGE);
-}
-
-void DiskSpaceEstimator::report_write(const std::string &filename, uint64_t pts)
-{
- if (filename != last_filename) {
- last_filename = filename;
- measure_points.clear();
- }
-
- // Reject points that are out-of-order (happens with B-frames).
- if (!measure_points.empty() && pts < measure_points.back().pts) {
- return;
- }
-
- // Remove too old points.
- while (measure_points.size() > 1 && measure_points.front().pts + window_length < pts) {
- measure_points.pop_front();
- }
-
- struct stat st;
- if (stat(filename.c_str(), &st) == -1) {
- perror(filename.c_str());
- return;
- }
-
- struct statfs fst;
- if (statfs(filename.c_str(), &fst) == -1) {
- perror(filename.c_str());
- return;
- }
-
- off_t free_bytes = off_t(fst.f_bavail) * fst.f_frsize;
- metric_disk_free_bytes = free_bytes;
-
- if (!measure_points.empty()) {
- double bytes_per_second = double(st.st_size - measure_points.front().size) /
- (pts - measure_points.front().pts) * TIMEBASE;
- double seconds_left = free_bytes / bytes_per_second;
-
- // Only report every second, since updating the UI can be expensive.
- if (last_pts_reported == 0 || pts - last_pts_reported >= TIMEBASE) {
- callback(free_bytes, seconds_left);
- last_pts_reported = pts;
- }
- }
-
- measure_points.push_back({ pts, st.st_size });
-}
-
-DiskSpaceEstimator *global_disk_space_estimator = nullptr; // Created in MainWindow::MainWindow().