Add support for only negative out in mlt_pplaylist_append_io.

diff --git a/src/framework/mlt_playlist.c b/src/framework/mlt_playlist.c
index 7832ee8f12bc555c257852aeba1933f7968ee23b..25f540a44e78d551236ea88147878d74c706579a 100644 (file)
--- a/src/framework/mlt_playlist.c
+++ b/src/framework/mlt_playlist.c
@@ -678,18 +678,18 @@ int mlt_playlist_append( mlt_playlist this, mlt_producer producer )
  * \public \memberof mlt_playlist_s
  * \param this a playlist
  * \param producer the producer to append
- * \param in the starting point on the producer
- * \param out the ending point on the producer
+ * \param in the starting point on the producer; a negative value is the same as 0
+ * \param out the ending point on the producer; a negative value is the same as producer length - 1
  * \return true if there was an error
  */
 
 int mlt_playlist_append_io( mlt_playlist this, mlt_producer producer, mlt_position in, mlt_position out )
 {
        // Append to virtual list
-       if ( in > -1 && out > -1 )
-               return mlt_playlist_virtual_append( this, producer, in, out );
-       else
+       if ( in < 0 && out < 0 )
                return mlt_playlist_append( this, producer );
+       else
+               return mlt_playlist_virtual_append( this, producer, in, out );
 }
 
 /** Append a blank to the playlist of a given length.
@@ -902,8 +902,8 @@ int mlt_playlist_repeat_clip( mlt_playlist this, int clip, int repeat )
  * \public \memberof mlt_playlist_s
  * \param this a playlist
  * \param clip the index of the playlist entry
- * \param in the new starting time on the clip's producer
- * \param out the new ending time on the clip's producer
+ * \param in the new starting time on the clip's producer;  a negative value is the same as 0
+ * \param out the new ending time on the clip's producer;  a negative value is the same as length - 1
  * \return true if there was an error
  */