Simplified playlist and track access

git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt++@512 d19143bc-622f-0410-bfdd-b5b2a6649095

diff --git a/mlt++/src/MltPlaylist.cpp b/mlt++/src/MltPlaylist.cpp
index 942b219..4bb38b7 100644 (file)
--- a/mlt++/src/MltPlaylist.cpp
+++ b/mlt++/src/MltPlaylist.cpp
@@ -181,6 +181,16 @@ Producer *Playlist::get_clip( int clip )
        return new Producer( mlt_playlist_get_clip( get_playlist( ), clip ) );
 }
 
+Producer *Playlist::get_clip_at( int position )
+{
+       return new Producer( mlt_playlist_get_clip_at( get_playlist( ), position ) );
+}
+
+int Playlist::get_clip_index_at( int position )
+{
+       return mlt_playlist_get_clip_index_at( get_playlist( ), position );
+}
+
 bool Playlist::is_mix( int clip )
 {
        return mlt_playlist_clip_is_mix( get_playlist( ), clip ) != 0;

diff --git a/mlt++/src/MltPlaylist.h b/mlt++/src/MltPlaylist.h
index d1c019d..8aae7fb 100644 (file)
--- a/mlt++/src/MltPlaylist.h
+++ b/mlt++/src/MltPlaylist.h
@@ -80,6 +80,8 @@ namespace Mlt
                        int mix_add( int clip, Transition *transition );
                        int repeat( int clip, int count );
                        Producer *get_clip( int clip );
+                       Producer *get_clip_at( int position );
+                       int get_clip_index_at( int position );
                        bool is_mix( int clip );
        };
 }

diff --git a/mlt++/src/MltTractor.cpp b/mlt++/src/MltTractor.cpp
index 8187a28..19c8a24 100644 (file)
--- a/mlt++/src/MltTractor.cpp
+++ b/mlt++/src/MltTractor.cpp
@@ -87,5 +87,11 @@ int Tractor::set_track( Producer &producer, int index )
 
 Producer *Tractor::track( int index )
 {
-       return new Producer( mlt_tractor_get_track( get_tractor( ), index ) );
+       mlt_producer producer = mlt_tractor_get_track( get_tractor( ), index );
+       return producer != NULL ? new Producer( producer ) : NULL;
+}
+
+int Tractor::count( )
+{
+       return mlt_multitrack_count( mlt_tractor_multitrack( get_tractor( ) ) );
 }

diff --git a/mlt++/src/MltTractor.h b/mlt++/src/MltTractor.h
index dc5d20f..014f395 100644 (file)
--- a/mlt++/src/MltTractor.h
+++ b/mlt++/src/MltTractor.h
@@ -48,6 +48,7 @@ namespace Mlt
                        void refresh( );
                        int set_track( Producer &producer, int index );
                        Producer *track( int index );
+                       int count( );
        };
 }