Reset _next_video_time when deciding to emit black.

Otherwise if we inaccurately seek into an area with no video there
will never be any content coming into ::video() which could reset
_next_video_time. Then when a black frame is emitted using
emit_video_until we will emit black frames from time 0 to the time
of the inaccurate seek.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/lib/player.cc b/src/lib/player.cc
index 6f9b70d0a..03935a46b 100644
--- a/src/lib/player.cc
+++ b/src/lib/player.cc
@@ -774,6 +774,12 @@ Player::pass ()
 	}
 	case BLACK:
 		LOG_DEBUG_PLAYER ("Emit black for gap at %1", to_string(_black.position()));
+		if (!_next_video_time) {
+			/* Deciding to emit black has the same effect as getting some video from the content
+			 * when we are inaccurately seeking.
+			 */
+			_next_video_time = _black.position();
+		}
 		if (film->three_d()) {
 			use_video(black_player_video_frame(Eyes::LEFT), _black.position(), _black.period_at_position().to);
 			use_video(black_player_video_frame(Eyes::RIGHT), _black.position(), _black.period_at_position().to);