memorymanager: rewrote entire memory management system

2020-02-23 20:29:51 +11:00
parent 3a90e76fec
commit 48cdb3a6dd
10 changed files with 143 additions and 147 deletions
@@ -0,0 +1,80 @@
+#include "ffmpegframecache.h"
+
+#include <QDateTime>
+#include <QDebug>
+
+int FFmpegFrameCache::global_frame_count_ = 0;
+
+FFmpegFrameCache::FFmpegFrameCache()
+{
+
+}
+
+void FFmpegFrameCache::append(AVFrame *f)
+{
+  global_frame_count_++;
+
+  frames_.append({f, QDateTime::currentMSecsSinceEpoch()});
+}
+
+void FFmpegFrameCache::clear()
+{
+  global_frame_count_ -= frames_.size();
+
+  frames_.clear();
+}
+
+bool FFmpegFrameCache::isEmpty() const
+{
+  return frames_.isEmpty();
+}
+
+AVFrame *FFmpegFrameCache::first() const
+{
+  return frames_.first().frame;
+}
+
+AVFrame *FFmpegFrameCache::at(int i) const
+{
+  return frames_.at(i).frame;
+}
+
+AVFrame *FFmpegFrameCache::last() const
+{
+  return frames_.last().frame;
+}
+
+int FFmpegFrameCache::size() const
+{
+  return frames_.size();
+}
+
+void FFmpegFrameCache::accessedFirst()
+{
+  frames_.first().accessed = QDateTime::currentMSecsSinceEpoch();
+}
+
+void FFmpegFrameCache::accessedLast()
+{
+  frames_.last().accessed = QDateTime::currentMSecsSinceEpoch();
+}
+
+void FFmpegFrameCache::accessed(int i)
+{
+  frames_[i].accessed = QDateTime::currentMSecsSinceEpoch();
+}
+
+void FFmpegFrameCache::remove_old_frames(qint64 older_than)
+{
+  int counter = 0;
+
+  while (!frames_.isEmpty() && frames_.first().accessed < older_than) {
+    CachedFrame cf = frames_.takeFirst();
+    av_frame_free(&cf.frame);
+    counter++;
+  }
+
+  qDebug() << "  * Removed" << counter << "frames";
+  global_frame_count_ -= counter;
+  qDebug() << "  * Global frames:" << global_frame_count_;
+}