X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=futatabi%2Fplayer.cpp;h=ce165d03f90461066e38cd312a76ef27948b0eea;hb=46ab69c1586b8920ce2735bdf2a0bbc811ee48fd;hp=6a8612f86e43be0f0f2e1740edd31a0c53ec61d9;hpb=2f717d07dd9c87e45e1de6bac6b64d83982f6246;p=nageru

diff --git a/futatabi/player.cpp b/futatabi/player.cpp
index 6a8612f..ce165d0 100644
--- a/futatabi/player.cpp
+++ b/futatabi/player.cpp
@@ -114,6 +114,7 @@ void Player::play_playlist_once()
 	bool clip_ready;
 	steady_clock::time_point before_sleep = steady_clock::now();
 	string pause_status;
+	float master_speed = 1.0f;
 
 	// Wait until we're supposed to play something.
 	{
@@ -184,9 +185,16 @@ void Player::play_playlist_once()
 			double out_pts = out_pts_origin + TIMEBASE * frameno / global_flags.output_framerate;
 			next_frame_start =
 				origin + microseconds(lrint((out_pts - out_pts_origin) * 1e6 / TIMEBASE));
-			int64_t in_pts = lrint(in_pts_origin + TIMEBASE * frameno * clip->speed / global_flags.output_framerate);
+			int64_t in_pts = lrint(in_pts_origin + TIMEBASE * frameno * clip->speed * master_speed / global_flags.output_framerate);
 			pts = lrint(out_pts);
 
+			float new_master_speed = change_master_speed.exchange(0.0f / 0.0f);
+			if (!std::isnan(new_master_speed)) {
+				master_speed = new_master_speed;
+				in_pts_origin = in_pts - TIMEBASE * frameno * clip->speed * master_speed / global_flags.output_framerate;
+				out_pts_origin = out_pts - TIMEBASE * frameno / global_flags.output_framerate;
+			}
+
 			if (in_pts >= clip->pts_out) {
 				break;
 			}
@@ -342,7 +350,7 @@ void Player::play_playlist_once()
 			// Snap to input frame: If we can do so with less than 1% jitter
 			// (ie., move less than 1% of an _output_ frame), do so.
 			// TODO: Snap secondary (fade-to) clips in the same fashion.
-			double pts_snap_tolerance = 0.01 * double(TIMEBASE) / global_flags.output_framerate;
+			double pts_snap_tolerance = 0.01 * double(TIMEBASE) * clip->speed / global_flags.output_framerate;
 			bool snapped = false;
 			for (FrameOnDisk snap_frame : { frame_lower, frame_upper }) {
 				if (fabs(snap_frame.pts - in_pts) < pts_snap_tolerance) {