finished merging earlier decoder code

2019-06-26 22:52:44 -07:00
parent f47de0be0d
commit d133ee9832
11 changed files with 570 additions and 1 deletions
@@ -0,0 +1,100 @@
+#ifndef FRAME_H
+#define FRAME_H
+
+extern "C" {
+#include <libavformat/avformat.h>
+}
+
+#include <memory>
+
+#include "rational.h"
+
+/**
+ * @brief The Frame class
+ *
+ * Abstraction from AVFrame. Currently a simple AVFrame wrapper.
+ *
+ * This class does not support copying at this time.
+ */
+class Frame
+{
+public:
+  // Normal constructor
+  Frame();
+
+  // AVFrame constructor
+  Frame(AVFrame* f);
+
+  // Copy constructor
+  Frame(const Frame& f);
+
+  // Move constructor
+  Frame(Frame&& f);
+
+  // Copy assignment operator
+  Frame& operator=(const Frame& f);
+
+  // Move assignment operator
+  Frame& operator=(Frame&& f);
+
+  // Destructor
+  ~Frame();
+
+  /**
+   * @brief Set frame child
+   *
+   * This class currently primarily functions as a wrapper for AVFrame for use outside of the Decoder classes.
+   * The internal AVFrame is set here. This class will also take ownership of the AVFrame and automatically
+   * clear it when deconstructed.
+   *
+   * @param f
+   */
+  void SetAVFrame(AVFrame* f, AVRational timebase);
+
+  /**
+   * @brief Get frame's width in pixels
+   */
+  const int& width();
+
+  /**
+   * @brief Get frame's height in pixels
+   */
+  const int& height();
+
+  /**
+   * @brief Get frame's timestamp.
+   *
+   * This timestamp is always a rational that will equate to the time in seconds.
+   */
+  const rational& timestamp();
+
+  /**
+   * @brief Get frame's format
+   *
+   * @return
+   *
+   * Currently this will either be an AVPixelFormat (video) or an AVSampleFormat (audio).
+   */
+  const int& format();
+
+  /**
+   * @brief Get the data buffer of this frame
+   */
+  uint8_t** data();
+
+  /**
+   * @brief Get the linesize information for this frame
+   */
+  int* linesize();
+
+private:
+
+  void FreeChild();
+
+  AVFrame* frame_;
+  rational timestamp_;
+};
+
+using FramePtr = std::shared_ptr<Frame>;
+
+#endif // FRAME_H