fixed various caching issues when rapidly changing values

app/decoder/ffmpeg/ffmpegdecoder.cpp

@@ -251,6 +251,7 @@ FramePtr FFmpegDecoder::Retrieve(const rational &timecode, const rational &lengt
   frame_container->set_height(frame_->height);
   frame_container->set_format(output_fmt_);
   frame_container->set_timestamp(rational(frame_->pts * avstream_->time_base.num, avstream_->time_base.den));
+  frame_container->set_native_timestamp(frame_->pts);
   frame_container->allocate();
 
   // Convert pixel format/linesize if necessary

app/decoder/frame.cpp

@@ -27,7 +27,10 @@
 
 Frame::Frame() :
   width_(0),
-  height_(0)
+  height_(0),
+  format_(-1),
+  timestamp_(0),
+  native_timestamp_(0)
 {
 }
 
@@ -66,6 +69,16 @@ void Frame::set_timestamp(const rational &timestamp)
   timestamp_ = timestamp;
 }
 
+const int64_t &Frame::native_timestamp()
+{
+  return native_timestamp_;
+}
+
+void Frame::set_native_timestamp(const int64_t &timestamp)
+{
+  native_timestamp_ = timestamp;
+}
+
 const int &Frame::format()
 {
   return format_;

app/decoder/frame.h

@@ -65,6 +65,9 @@ public:
   const rational& timestamp();
   void set_timestamp(const rational& timestamp);
 
+  const int64_t& native_timestamp();
+  void set_native_timestamp(const int64_t& timestamp);
+
   /**
    * @brief Get frame's format
    *
@@ -110,6 +113,8 @@ private:
 
   rational timestamp_;
 
+  int64_t native_timestamp_;
+
 };
 
 #endif // FRAME_H