Validate frame packing value instead of clipping

diff --git a/encoder/encoder.c b/encoder/encoder.c
index 4f412b50b17e5f4b730d146aa8d9f5178809d90e..644ddb0de40359b810322be08a10871f7e0c011f 100644 (file)
--- a/encoder/encoder.c
+++ b/encoder/encoder.c
@@ -586,7 +586,11 @@ static int x264_validate_parameters( x264_t *h, int b_open )
         h->param.i_dpb_size = 1;
     }
 
-    h->param.i_frame_packing = x264_clip3( h->param.i_frame_packing, -1, 5 );
+    if( h->param.i_frame_packing < -1 || h->param.i_frame_packing > 5 )
+    {
+        x264_log( h, X264_LOG_WARNING, "ignoring unknown frame packing value\n" );
+        h->param.i_frame_packing = -1;
+    }
 
     /* Detect default ffmpeg settings and terminate with an error. */
     if( b_open )