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diff --git a/src/lib/player.cc b/src/lib/player.cc
index 37f172f1da72ea922f7a69dc018e9151bbdd3dc1..8cc1849e865f0909001a55374954bca5fbe48247 100644 (file)
--- a/src/lib/player.cc
+++ b/src/lib/player.cc
@@ -295,6 +295,9 @@ Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers
 
        audio = dcp_mapped;
 
+       /* Convert frame to time.  After resampling, the frame time (in the DCP rate) will be T_D where
+          T_D = frame * DCP_rate / original_rate.  Hence the time in seconds is T_D / DCP_rate.
+       */
        Time time = content->start() + (frame * TIME_HZ / _film->audio_frame_rate()) + (content->audio_delay() * TIME_HZ / 1000);
 
        /* We must cut off anything that comes before the start of all time */