Initial commit

[fillmore] / src / lombard / video_project.vala

diff --git a/src/lombard/video_project.vala b/src/lombard/video_project.vala
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+/* Copyright 2009-2010 Yorba Foundation
+ *
+ * This software is licensed under the GNU Lesser General Public License
+ * (version 2.1 or later).  See the COPYING file in this distribution. 
+ */
+
+using Logging;
+
+namespace Model {
+
+class VideoProject : Project {
+    public TimecodeTimeSystem time_provider;
+
+    public override void load_complete() {
+        if (find_video_track() == null) {
+            add_track(new VideoTrack(this));
+        }
+    }
+
+    public VideoProject(string? filename) throws Error {
+        base(filename, true);
+        // TODO: When vala supports throwing from base constructor remove this check
+        if (this != null) {
+            time_provider = new TimecodeTimeSystem();
+        }
+    }
+
+    public override string get_app_name() {
+        return App.NAME;
+    }
+
+    public override TimeCode get_clip_time(ClipFile f) {
+        TimeCode t = {};
+
+        if (f.is_of_type(MediaType.VIDEO)) {
+            Fraction rate;
+            if (!get_framerate_fraction(out rate)) {
+                rate.numerator = 2997;
+                rate.denominator = 100;
+            }
+            t = frame_to_time(time_to_frame_with_rate(f.length, rate), rate);
+        } else
+            t.get_from_length(f.length);
+            
+        return t;
+    }
+
+    public void go_previous_frame() {
+        VideoTrack? video_track = find_video_track();
+        if (video_track != null) {
+            media_engine.go(video_track.previous_frame(transport_get_position()));
+        }
+    }
+
+    public void go_next_frame() {
+        VideoTrack? video_track = find_video_track();
+        if (video_track != null) {
+            media_engine.go(video_track.next_frame(transport_get_position()));
+        }
+    }
+
+    public bool get_framerate_fraction(out Fraction rate) {
+        foreach (Track track in tracks) {
+            VideoTrack video_track = track as VideoTrack;
+            if (video_track != null && video_track.get_framerate(out rate))
+                return true;
+        }
+        return false;
+    }
+}
+}