Try rounding length_after_trim.

[dcpomatic.git] / src / lib / content.cc

diff --git a/src/lib/content.cc b/src/lib/content.cc
index ca76b01a6c8ad627f851fa7503c2eb9e18eaaa85..2593c01df2ca7a569cf48f101d55883840dd0bed 100644 (file)
--- a/src/lib/content.cc
+++ b/src/lib/content.cc
@@ -52,6 +52,7 @@ using boost::shared_ptr;
 using boost::optional;
 using dcp::raw_convert;
 using dcp::locale_convert;
+using namespace dcpomatic;
 
 int const ContentProperty::PATH = 400;
 int const ContentProperty::POSITION = 401;
@@ -211,7 +212,7 @@ Content::signal_change (ChangeType c, int p)
 }
 
 void
-Content::set_position (shared_ptr<const Film> film, DCPTime p)
+Content::set_position (shared_ptr<const Film> film, DCPTime p, bool force_emit)
 {
        /* video and audio content can modify its position */
 
@@ -219,7 +220,13 @@ Content::set_position (shared_ptr<const Film> film, DCPTime p)
                video->modify_position (film, p);
        }
 
-       if (audio) {
+       /* Only allow the audio to modify if we have no video;
+          sometimes p can't be on an integer video AND audio frame,
+          and in these cases we want the video constraint to be
+          satisfied since (I think) the audio code is better able to
+          cope.
+       */
+       if (!video && audio) {
                audio->modify_position (film, p);
        }
 
@@ -227,7 +234,7 @@ Content::set_position (shared_ptr<const Film> film, DCPTime p)
 
        {
                boost::mutex::scoped_lock lm (_mutex);
-               if (p == _position) {
+               if (p == _position && !force_emit) {
                        cc.abort ();
                        return;
                }
@@ -245,7 +252,8 @@ Content::set_trim_start (ContentTime t)
                video->modify_trim_start (t);
        }
 
-       if (audio) {
+       /* See note in ::set_position */
+       if (!video && audio) {
                audio->modify_trim_start (t);
        }
 
@@ -295,7 +303,7 @@ Content::technical_summary () const
 DCPTime
 Content::length_after_trim (shared_ptr<const Film> film) const
 {
-       return max (DCPTime(), full_length(film) - DCPTime(trim_start() + trim_end(), film->active_frame_rate_change(position())));
+       return max(DCPTime(), full_length(film) - DCPTime(trim_start() + trim_end(), film->active_frame_rate_change(position()))).round(film->video_frame_rate());
 }
 
 /** @return string which changes when something about this content changes which affects