X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=futatabi%2Fplayer.cpp;h=e5562f7f307e21fcfa7c288425a3f440bc62a74d;hb=03be4eea8fe0f2a72ee848595fdd37036574cbcb;hp=2fb3939ec65d4f7c09276494845ab1abe51fe2ae;hpb=44a23824d0796b9ad1ea830e0e2812d485632d9e;p=nageru

diff --git a/futatabi/player.cpp b/futatabi/player.cpp
index 2fb3939..e5562f7 100644
--- a/futatabi/player.cpp
+++ b/futatabi/player.cpp
@@ -472,3 +472,27 @@ void Player::release_queue_spot()
 	--num_queued_frames;
 	new_clip_changed.notify_all();
 }
+
+double compute_time_left(const vector<Clip> &clips, const map<size_t, double> &progress)
+{
+	// Look at the last clip and then start counting from there.
+	assert(!progress.empty());
+	auto last_it = progress.end();
+	--last_it;
+	double remaining = 0.0;
+	double last_fade_time_seconds = 0.0;
+	for (size_t row = last_it->first; row < clips.size(); ++row) {
+		const Clip &clip = clips[row];
+		double clip_length = double(clip.pts_out - clip.pts_in) / TIMEBASE / 0.5;  // FIXME: stop hardcoding speed.
+		if (row == last_it->first) {
+			// A clip we're playing: Subtract the part we've already played.
+			remaining = clip_length * (1.0 - last_it->second);
+		} else {
+			// A clip we haven't played yet: Subtract the part that's overlapping
+			// with a previous clip (due to fade).
+			remaining += max(clip_length - last_fade_time_seconds, 0.0);
+		}
+		last_fade_time_seconds = min(clip_length, clip.fade_time_seconds);
+	}
+	return remaining;
+}