From a4a21feb87d5f01df628a5ec5cb3d37afb10c9bf Mon Sep 17 00:00:00 2001
From: Edward Hervey <edward@centricular.com>
Date: Tue, 18 Jun 2024 09:10:16 +0200
Subject: [PATCH] tsdemux: Fix maximum PCR/DTS values

* PTS/DTS are stored as 33 bit
* PCR is 33bit multiplied by 300

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7050>
---
 .../gst-plugins-bad/gst/mpegtsdemux/mpegtspacketizer.c    | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/subprojects/gst-plugins-bad/gst/mpegtsdemux/mpegtspacketizer.c b/subprojects/gst-plugins-bad/gst/mpegtsdemux/mpegtspacketizer.c
index 882948d212..fdc7851dcd 100644
--- a/subprojects/gst-plugins-bad/gst/mpegtsdemux/mpegtspacketizer.c
+++ b/subprojects/gst-plugins-bad/gst/mpegtsdemux/mpegtspacketizer.c
@@ -31,10 +31,12 @@
 /* Skew calculation pameters */
 #define MAX_TIME	(2 * GST_SECOND)
 
-/* maximal PCR time */
-#define PCR_MAX_VALUE (((((guint64)1)<<33) * 300) + 298)
+/* 90kHz maximum values, coded in 33bits */
+#define MAX_33BIT (((guint64)1) << 33)
+#define PTS_DTS_MAX_VALUE (MAX_33BIT - 1)
+/* maximal PCR time, 27Mhz, coded with additional 9bits */
+#define PCR_MAX_VALUE (MAX_33BIT * 300 - 1)
 #define PCR_GST_MAX_VALUE (PCR_MAX_VALUE * GST_MSECOND / (PCR_MSECOND))
-#define PTS_DTS_MAX_VALUE (((guint64)1) << 33)
 
 #include "mpegtspacketizer.h"
 #include "gstmpegdesc.h"