From: eugeni <eugeni@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sun, 30 Dec 2007 01:03:05 +0000 (+0000)
Subject: Return from ass_start_frame immediately if the track is empty.
X-Git-Tag: 0.9.7~238
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6eb36c5b6125ecf6e926a3c0cf26fecf192a9d90;p=libass

Return from ass_start_frame immediately if the track is empty.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25541 b3059339-0415-0410-9bf9-f77b7e298cf2
---

diff --git a/libass/ass_render.c b/libass/ass_render.c
index 5b97b8a..9789be2 100644
--- a/libass/ass_render.c
+++ b/libass/ass_render.c
@@ -2102,6 +2102,9 @@ static int ass_start_frame(ass_renderer_t *priv, ass_track_t* track, long long n
 
 	if (!priv->settings.frame_width && !priv->settings.frame_height)
 		return 1; // library not initialized
+
+	if (track->n_events == 0)
+		return 1; // nothing to do
 	
 	frame_context.ass_priv = priv;
 	frame_context.width = global_settings->frame_width;