Move video frame rate ('prepared-for') into Content.

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

diff --git a/src/lib/content.cc b/src/lib/content.cc
index 2b4f02b903c90d8027d48c1f0fe1fbb36ac49380..ff35eeab73969c49b39386f386660e3a2f464395 100644 (file)
--- a/src/lib/content.cc
+++ b/src/lib/content.cc
@@ -28,10 +28,12 @@
 #include "film.h"
 #include "safe_stringstream.h"
 #include "job.h"
+#include "compose.hpp"
 #include "raw_convert.h"
 #include <libcxml/cxml.h>
 #include <libxml++/libxml++.h>
 #include <boost/thread/mutex.hpp>
+#include <iostream>
 
 #include "i18n.h"
 
@@ -48,6 +50,7 @@ int const ContentProperty::POSITION = 401;
 int const ContentProperty::LENGTH = 402;
 int const ContentProperty::TRIM_START = 403;
 int const ContentProperty::TRIM_END = 404;
+int const ContentProperty::VIDEO_FRAME_RATE = 405;
 
 Content::Content (shared_ptr<const Film> film)
        : _film (film)
@@ -88,9 +91,9 @@ Content::Content (shared_ptr<const Film> film, cxml::ConstNodePtr node)
                _paths.push_back ((*i)->content ());
        }
        _digest = node->optional_string_child ("Digest").get_value_or ("X");
-       _position = DCPTime (node->number_child<double> ("Position"));
-       _trim_start = DCPTime (node->number_child<double> ("TrimStart"));
-       _trim_end = DCPTime (node->number_child<double> ("TrimEnd"));
+       _position = DCPTime (node->number_child<DCPTime::Type> ("Position"));
+       _trim_start = ContentTime (node->number_child<ContentTime::Type> ("TrimStart"));
+       _trim_end = ContentTime (node->number_child<ContentTime::Type> ("TrimEnd"));
 }
 
 Content::Content (shared_ptr<const Film> film, vector<shared_ptr<Content> > c)
@@ -101,11 +104,11 @@ Content::Content (shared_ptr<const Film> film, vector<shared_ptr<Content> > c)
        , _change_signals_frequent (false)
 {
        for (size_t i = 0; i < c.size(); ++i) {
-               if (i > 0 && c[i]->trim_start() > DCPTime()) {
+               if (i > 0 && c[i]->trim_start() > ContentTime ()) {
                        throw JoinError (_("Only the first piece of content to be joined can have a start trim."));
                }
 
-               if (i < (c.size() - 1) && c[i]->trim_end () > DCPTime()) {
+               if (i < (c.size() - 1) && c[i]->trim_end () > ContentTime ()) {
                        throw JoinError (_("Only the last piece of content to be joined can have an end trim."));
                }
 
@@ -153,7 +156,11 @@ Content::examine (shared_ptr<Job> job)
 void
 Content::signal_changed (int p)
 {
-       emit (boost::bind (boost::ref (Changed), shared_from_this (), p, _change_signals_frequent));
+       try {
+               emit (boost::bind (boost::ref (Changed), shared_from_this (), p, _change_signals_frequent));
+       } catch (boost::bad_weak_ptr) {
+               /* This must be during construction; never mind */
+       }
 }
 
 void
@@ -172,7 +179,7 @@ Content::set_position (DCPTime p)
 }
 
 void
-Content::set_trim_start (DCPTime t)
+Content::set_trim_start (ContentTime t)
 {
        {
                boost::mutex::scoped_lock lm (_mutex);
@@ -183,7 +190,7 @@ Content::set_trim_start (DCPTime t)
 }
 
 void
-Content::set_trim_end (DCPTime t)
+Content::set_trim_end (ContentTime t)
 {
        {
                boost::mutex::scoped_lock lm (_mutex);
@@ -221,11 +228,11 @@ Content::technical_summary () const
 DCPTime
 Content::length_after_trim () const
 {
-       return max (DCPTime (), full_length() - trim_start() - trim_end());
+       return max (DCPTime (), full_length() - DCPTime (trim_start() + trim_end(), film()->active_frame_rate_change (position ())));
 }
 
-/** @return string which includes everything about how this content affects
- *  its playlist.
+/** @return string which changes when something about this content changes which affects
+ *  the appearance of its video.
  */
 string
 Content::identifier () const
@@ -275,13 +282,59 @@ Content::path_summary () const
        return s;
 }
 
-/** @return a list of properties that might be interesting to the user; first string is the property name,
- *  second is the value.
- */
-list<pair<string, string> >
-Content::properties () const
+/** @return a list of properties that might be interesting to the user */
+list<UserProperty>
+Content::user_properties () const
 {
-       list<pair<string, string> > p;
+       list<UserProperty> p;
        add_properties (p);
        return p;
 }
+
+shared_ptr<const Film>
+Content::film () const
+{
+       shared_ptr<const Film> film = _film.lock ();
+       DCPOMATIC_ASSERT (film);
+       return film;
+}
+
+/** @return DCP times of points within this content where a reel split could occur */
+list<DCPTime>
+Content::reel_split_points () const
+{
+       list<DCPTime> t;
+       /* XXX: this is questionable; perhaps the position itself should be forced to be on a frame boundary */
+       t.push_back (position().round_up (film()->video_frame_rate()));
+       return t;
+}
+
+void
+Content::set_video_frame_rate (double r)
+{
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               _video_frame_rate = r;
+       }
+
+       signal_changed (ContentProperty::VIDEO_FRAME_RATE);
+}
+
+double
+Content::active_video_frame_rate () const
+{
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               if (_video_frame_rate) {
+                       return _video_frame_rate.get ();
+               }
+       }
+
+       /* No frame rate specified, so assume this content has been
+          prepared for any concurrent video content or perhaps
+          just the DCP rate.
+       */
+       shared_ptr<const Film> film = _film.lock ();
+       DCPOMATIC_ASSERT (film);
+       return film->active_frame_rate_change(position()).source;
+}