render: implemented frame pool

Optimization
2021-04-28 17:31:25 +10:00
parent 2e96b57319
commit 51ccaedc78
8 changed files with 270 additions and 15 deletions
@@ -21,6 +21,7 @@
 #include "viewerplaybacktimer.h"

 #include <QDateTime>
+#include <QtMath>

 namespace olive {

@@ -29,14 +30,14 @@ void ViewerPlaybackTimer::Start(const int64_t &start_timestamp, const int &playb
  start_msec_ = QDateTime::currentMSecsSinceEpoch();
  start_timestamp_ = start_timestamp;
  playback_speed_ = playback_speed;
-  timebase_ = timebase;
+  timebase_ = timebase * 1000;
 }

 int64_t ViewerPlaybackTimer::GetTimestampNow() const
 {
  int64_t real_time = QDateTime::currentMSecsSinceEpoch() - start_msec_;

-  int64_t frames_since_start = qRound(static_cast<double>(real_time) / (timebase_ * 1000));
+  int64_t frames_since_start = qFloor(static_cast<double>(real_time) / (timebase_));

  return start_timestamp_ + frames_since_start * playback_speed_;
 }