From 0006f5316af9c283bde6a2e78d9c05c6e2c2c3e1 Mon Sep 17 00:00:00 2001
From: Alexandre Janniaux <ajanni@videolabs.io>
Date: Wed, 8 Mar 2023 17:50:47 +0100
Subject: [PATCH] input: es_out: reset buffering on PCR discontinuity

If PCR is going back to the past, flush the pipeline and reset the
buffering back to avoid waiting for the stream to catch-up with the old
reference, and avoid buffering more than what we requested, which would
shift the playback more from the live.
---
 src/input/es_out.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/input/es_out.c b/src/input/es_out.c
index 7a00589961..84be03e3df 100644
--- a/src/input/es_out.c
+++ b/src/input/es_out.c
@@ -1185,6 +1185,12 @@ static void EsOutDecodersStopBuffering( es_out_t *out, bool b_forced )
                                   &i_stream_duration, &i_system_duration ))
         return;
 
+    if (i_stream_duration < 0)
+    {
+        EsOutChangePosition(out, true);
+        return;
+    }
+
     vlc_tick_t i_preroll_duration = 0;
     if( p_sys->i_preroll_end >= 0 )
         i_preroll_duration = __MAX( p_sys->i_preroll_end - i_stream_start, 0 );