realvideo: use VLC_TS_INVALID (refs #3135)

diff --git a/modules/codec/realvideo.c b/modules/codec/realvideo.c
index 5b2c5a46c4e09dd2ff0a22f42a5708b6ca845669..1a8160fc2eda1f94fa2177c29e54587529b848b5 100644 (file)
--- a/modules/codec/realvideo.c
+++ b/modules/codec/realvideo.c
@@ -456,7 +456,7 @@ static picture_t *DecodeVideo( decoder_t *p_dec, block_t **pp_block )
     p_block = *pp_block;
     *pp_block = NULL;
 
-    i_pts = p_block->i_pts ? p_block->i_pts : p_block->i_dts;
+    i_pts = (p_block->i_pts > VLC_TS_INVALID) ? p_block->i_pts : p_block->i_dts;
 
     vlc_mutex_lock( &rm_mutex );