[Bf-blender-cvs] [538f2aeaefb] master: Fix AV-sync sometimes putting scene one frame back

[Sergey Sharybin]

Commit: 538f2aeaefb0272da66a921cf0ed9aad30f09206
Author: Sergey Sharybin
Date:   Mon Jun 17 17:52:02 2019 +0200
Branches: master
https://developer.blender.org/rB538f2aeaefb0272da66a921cf0ed9aad30f09206

Fix AV-sync sometimes putting scene one frame back

===================================================================

M	source/blender/editors/screen/screen_ops.c

===================================================================

diff --git a/source/blender/editors/screen/screen_ops.c b/source/blender/editors/screen/screen_ops.c
index f6034a7051e..1a146f5bd07 100644
--- a/source/blender/editors/screen/screen_ops.c
+++ b/source/blender/editors/screen/screen_ops.c
@@ -4243,7 +4243,7 @@ static int screen_animation_step(bContext *C, wmOperator *UNUSED(op), const wmEv
         scene->r.cfra++;
       }
       else {
-        scene->r.cfra = newfra + 0.5;
+        scene->r.cfra = max_ii(scene->r.cfra, newfra + 0.5);
       }
 
 #ifdef PROFILE_AUDIO_SYNCH