/*
- Copyright (C) 2019 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2019-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
+
#ifndef DCPOMATIC_VIDEO_VIEW_H
#define DCPOMATIC_VIDEO_VIEW_H
+
#include "lib/dcpomatic_time.h"
-#include <boost/shared_ptr.hpp>
+#include "lib/exception_store.h"
+#include "lib/signaller.h"
+#include "lib/timer.h"
+#include "lib/types.h"
+#include <dcp/warnings.h>
+LIBDCP_DISABLE_WARNINGS
+#include <wx/wx.h>
+LIBDCP_ENABLE_WARNINGS
#include <boost/signals2.hpp>
+#include <boost/thread.hpp>
+
-class Image;
-class wxWindow;
class FilmViewer;
+class Image;
+class Player;
class PlayerVideo;
+class wxWindow;
-class VideoView
+
+class VideoView : public ExceptionStore, public Signaller
{
public:
- VideoView (FilmViewer* viewer)
- : _viewer (viewer)
-#ifdef DCPOMATIC_VARIANT_SWAROOP
- , _in_watermark (false)
-#endif
- {}
-
+ VideoView (FilmViewer* viewer);
virtual ~VideoView () {}
- virtual void set_image (boost::shared_ptr<const Image> image) = 0;
+ VideoView (VideoView const&) = delete;
+ VideoView& operator= (VideoView const&) = delete;
+
+ /** @return the thing displaying the image */
virtual wxWindow* get () const = 0;
+ /** Re-make and display the image from the current _player_video */
virtual void update () = 0;
+ /** Called when playback starts */
+ virtual void start ();
+ /** Called when playback stops */
+ virtual void stop () {}
- /* XXX_b: make pure */
- virtual void start () {}
+ enum NextFrameResult {
+ FAIL,
+ AGAIN,
+ SUCCESS
+ };
+
+ /** Get the next frame and display it; used after seek */
+ virtual NextFrameResult display_next_frame (bool) = 0;
void clear ();
+ bool reset_metadata (std::shared_ptr<const Film> film, dcp::Size player_video_container_size);
+ /** Emitted from the GUI thread when our display changes in size */
boost::signals2::signal<void()> Sized;
+ /** Emitted from the GUI thread when a lot of frames are being dropped */
+ boost::signals2::signal<void()> TooManyDropped;
+
+
+ /* Accessors for FilmViewer */
+
+ int dropped () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _dropped;
+ }
+
+ int errored () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _errored;
+ }
+
+ int gets () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _gets;
+ }
+
+ StateTimer const & state_timer () const {
+ return _state_timer;
+ }
+
+ dcpomatic::DCPTime position () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _player_video.second;
+ }
+
+
+ /* Setters for FilmViewer so it can tell us our state and
+ * we can then use (thread) safely.
+ */
+
+ void set_video_frame_rate (int r) {
+ boost::mutex::scoped_lock lm (_mutex);
+ _video_frame_rate = r;
+ }
- /* XXX_b: to remove */
- virtual bool get (bool) {
- return true;
+ void set_length (dcpomatic::DCPTime len) {
+ boost::mutex::scoped_lock lm (_mutex);
+ _length = len;
+ }
+
+ void set_eyes (Eyes eyes) {
+ boost::mutex::scoped_lock lm (_mutex);
+ _eyes = eyes;
+ }
+
+ void set_three_d (bool t) {
+ boost::mutex::scoped_lock lm (_mutex);
+ _three_d = t;
+ }
+
+ void set_optimise_for_j2k (bool o) {
+ _optimise_for_j2k = o;
}
- /* XXX_b: to remove */
- virtual void display_player_video () {}
protected:
- /* XXX_b: to remove */
- friend class FilmViewer;
+ NextFrameResult get_next_frame (bool non_blocking);
+ boost::optional<int> time_until_next_frame () const;
+ dcpomatic::DCPTime one_video_frame () const;
+
+ wxColour pad_colour () const;
- bool get_next_frame (bool non_blocking);
+ wxColour outline_content_colour () const {
+ return wxColour(255, 0, 0);
+ }
+
+ wxColour outline_subtitles_colour () const {
+ return wxColour(0, 255, 0);
+ }
+
+ wxColour crop_guess_colour () const {
+ return wxColour(0, 0, 255);
+ }
+
+ int video_frame_rate () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _video_frame_rate;
+ }
+
+ dcpomatic::DCPTime length () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _length;
+ }
+
+ std::pair<std::shared_ptr<PlayerVideo>, dcpomatic::DCPTime> player_video () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _player_video;
+ }
+
+ void add_dropped ();
+
+ void add_get () {
+ boost::mutex::scoped_lock lm (_mutex);
+ ++_gets;
+ }
FilmViewer* _viewer;
- std::pair<boost::shared_ptr<PlayerVideo>, dcpomatic::DCPTime> _player_video;
-#ifdef DCPOMATIC_VARIANT_SWAROOP
- bool _in_watermark;
- int _watermark_x;
- int _watermark_y;
-#endif
+ StateTimer _state_timer;
+
+ bool _optimise_for_j2k = false;
+
+private:
+ /** Mutex protecting all the state in this class */
+ mutable boost::mutex _mutex;
+
+ std::pair<std::shared_ptr<PlayerVideo>, dcpomatic::DCPTime> _player_video;
+ int _video_frame_rate = 0;
+ /** length of the film we are playing, or 0 if there is none */
+ dcpomatic::DCPTime _length;
+ Eyes _eyes = Eyes::LEFT;
+ bool _three_d = false;
+
+ int _dropped = 0;
+ struct timeval _dropped_check_period_start;
+ int _errored = 0;
+ int _gets = 0;
};
+
#endif