From 5536ebe82faf021ebb3cff73e0cd42d113094321 Mon Sep 17 00:00:00 2001
From: Jonas Zetterberg <jozz@jozz.se>
Date: Sun, 2 Feb 2014 13:25:02 +0000
Subject: vo_vdpau: Discard zero timestamps

Some drivers do not supply timestamps, use old timestamp in these conditions.
---
 video/out/vo_vdpau.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/video/out/vo_vdpau.c b/video/out/vo_vdpau.c
index 13332f0811..11d7650467 100644
--- a/video/out/vo_vdpau.c
+++ b/video/out/vo_vdpau.c
@@ -176,6 +176,9 @@ static int change_vdptime_sync(struct vo *vo, int64_t *t)
             vdp_time -= (t2 - t1) * 1000ULL;
         else
             vdp_time = old;
+    } else if (!vdp_time) {
+        /* Some drivers do not return timestamps. */
+        vdp_time = old;
     }
     MP_DBG(vo, "adjusting VdpTime offset by %f µs\n",
            (int64_t)(vdp_time - old) / 1000.);
-- 
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