*/
#include "video_view.h"
+#include "wx_util.h"
+#include "film_viewer.h"
+#include "lib/butler.h"
+#include "lib/dcpomatic_log.h"
+#include <boost/optional.hpp>
+
+using std::pair;
+using std::shared_ptr;
+using boost::optional;
+
+VideoView::VideoView (FilmViewer* viewer)
+ : _viewer (viewer)
+ , _state_timer ("viewer")
+ , _video_frame_rate (0)
+ , _eyes (EYES_LEFT)
+ , _three_d (false)
+ , _dropped (0)
+ , _errored (0)
+ , _gets (0)
+{
+
+}
void
VideoView::clear ()
{
+ boost::mutex::scoped_lock lm (_mutex);
_player_video.first.reset ();
_player_video.second = dcpomatic::DCPTime ();
}
+
+/** Could be called from any thread.
+ * @param non_blocking true to return false quickly if no video is available quickly.
+ * @return FAIL if there's no frame, AGAIN if the method should be called again, or SUCCESS
+ * if there is a frame.
+ */
+VideoView::NextFrameResult
+VideoView::get_next_frame (bool non_blocking)
+{
+ if (length() == dcpomatic::DCPTime()) {
+ return FAIL;
+ }
+
+ shared_ptr<Butler> butler = _viewer->butler ();
+ if (!butler) {
+ return FAIL;
+ }
+ add_get ();
+
+ boost::mutex::scoped_lock lm (_mutex);
+
+ do {
+ Butler::Error e;
+ pair<shared_ptr<PlayerVideo>, dcpomatic::DCPTime> pv = butler->get_video (!non_blocking, &e);
+ if (e.code == Butler::Error::DIED) {
+ LOG_ERROR ("Butler died with %1", e.summary());
+ }
+ if (!pv.first) {
+ return e.code == Butler::Error::AGAIN ? AGAIN : FAIL;
+ }
+ _player_video = pv;
+ } while (
+ _player_video.first &&
+ _three_d &&
+ _eyes != _player_video.first->eyes() &&
+ _player_video.first->eyes() != EYES_BOTH
+ );
+
+ if (_player_video.first && _player_video.first->error()) {
+ ++_errored;
+ }
+
+ return SUCCESS;
+}
+
+dcpomatic::DCPTime
+VideoView::one_video_frame () const
+{
+ return dcpomatic::DCPTime::from_frames (1, video_frame_rate());
+}
+
+/** @return Time in ms until the next frame is due, or empty if nothing is due */
+optional<int>
+VideoView::time_until_next_frame () const
+{
+ if (length() == dcpomatic::DCPTime()) {
+ /* There's no content, so this doesn't matter */
+ return optional<int>();
+ }
+
+ dcpomatic::DCPTime const next = position() + one_video_frame();
+ dcpomatic::DCPTime const time = _viewer->audio_time().get_value_or(position());
+ if (next < time) {
+ return 0;
+ }
+ return (next.seconds() - time.seconds()) * 1000;
+}
+
+void
+VideoView::start ()
+{
+ boost::mutex::scoped_lock lm (_mutex);
+ _dropped = 0;
+ _errored = 0;
+}
+
+bool
+VideoView::reset_metadata (shared_ptr<const Film> film, dcp::Size player_video_container_size)
+{
+ pair<shared_ptr<PlayerVideo>, dcpomatic::DCPTime> pv = player_video ();
+ if (!pv.first) {
+ return false;
+ }
+
+ if (!pv.first->reset_metadata(film, player_video_container_size)) {
+ return false;
+ }
+
+ update ();
+ return true;
+}
+