New DCPTime/ContentTime types.

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

diff --git a/src/lib/video_content.cc b/src/lib/video_content.cc
index 9d9b583286dd29471763dc7007c3ab90b8f8a831..b30aa3df4c8ae1c0e3ff5a1ee9f5d624f14d1d83 100644 (file)
--- a/src/lib/video_content.cc
+++ b/src/lib/video_content.cc
@@ -59,7 +59,7 @@ VideoContent::VideoContent (shared_ptr<const Film> f)
        setup_default_colour_conversion ();
 }
 
-VideoContent::VideoContent (shared_ptr<const Film> f, DCPTime s, VideoFrame len)
+VideoContent::VideoContent (shared_ptr<const Film> f, DCPTime s, ContentTime len)
        : Content (f, s)
        , _video_length (len)
        , _video_frame_rate (0)
@@ -83,7 +83,7 @@ VideoContent::VideoContent (shared_ptr<const Film> f, shared_ptr<const cxml::Nod
        : Content (f, node)
        , _ratio (0)
 {
-       _video_length = node->number_child<VideoFrame> ("VideoLength");
+       _video_length = ContentTime (node->number_child<int64_t> ("VideoLength"));
        _video_size.width = node->number_child<int> ("VideoWidth");
        _video_size.height = node->number_child<int> ("VideoHeight");
        _video_frame_rate = node->number_child<float> ("VideoFrameRate");
@@ -353,21 +353,12 @@ VideoContent::video_size_after_crop () const
 }
 
 /** @param t A time offset from the start of this piece of content.
- *  @return Corresponding frame index, rounded up so that the frame index
- *  is that of the next complete frame which starts after `t'.
+ *  @return Corresponding time with respect to the content.
  */
-VideoFrame
-VideoContent::time_to_content_video_frames (DCPTime t) const
+ContentTime
+VideoContent::dcp_time_to_content_time (DCPTime t) const
 {
        shared_ptr<const Film> film = _film.lock ();
        assert (film);
-       
-       /* Here we are converting from time (in the DCP) to a frame number in the content.
-          Hence we need to use the DCP's frame rate and the double/skip correction, not
-          the source's rate; source rate will be equal to DCP rate if we ignore
-          double/skip.  There's no need to call Film::active_frame_rate_change() here
-          as we know that we are it (since we're video).
-       */
-       FrameRateChange frc (video_frame_rate(), film->video_frame_rate());
-       return ceil (t * film->video_frame_rate() / (frc.factor() * TIME_HZ));
+       return ContentTime (t, FrameRateChange (video_frame_rate(), film->video_frame_rate()));
 }