From 3992c6c276cfd27f08694f27a298f5e8d48ef48b Mon Sep 17 00:00:00 2001
From: Maxime Gervais <gervais.maxime@gmail.com>
Date: Thu, 11 Jun 2026 22:45:07 +0200
Subject: [PATCH 1/2] Fix EBML-ELEM-UNKNOWN-SIZE validation with MediaInfoLib >
 26.01

Signed-off-by: Maxime Gervais <gervais.maxime@gmail.com>
---
 Source/Common/generated/ImplementationReportXsl.h | 8 +++-----
 Tools/Implementation/ImplementationReport.xsl     | 8 +++-----
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/Source/Common/generated/ImplementationReportXsl.h b/Source/Common/generated/ImplementationReportXsl.h
index 16ac428d..8abc8b86 100644
--- a/Source/Common/generated/ImplementationReportXsl.h
+++ b/Source/Common/generated/ImplementationReportXsl.h
@@ -155,7 +155,7 @@ const char implementation_report_xsl[] = {
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@@ -1583,9 +1583,7 @@ const char implementation_report_xsl[] = {
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 ,'\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x3c','\x78','\x73','\x6c','\x3a','\x61','\x74','\x74','\x72','\x69','\x62','\x75','\x74','\x65','\x20','\x6e','\x61','\x6d','\x65','\x3d','\x22','\x6f','\x75','\x74','\x63','\x6f','\x6d','\x65','\x22','\x3e','\x70','\x61','\x73','\x73','\x3c','\x2f','\x78','\x73','\x6c','\x3a','\x61','\x74','\x74','\x72','\x69','\x62','\x75','\x74','\x65','\x3e','\x0a'
 ,'\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x20','\x3c','\x78','\x73','\x6c','\x3a','\x61','\x74','\x74','\x72','\x69','\x62','\x75','\x74','\x65','\x20','\x6e','\x61','\x6d','\x65','\x3d','\x22','\x79','\x61','\x22','\x3e','\x0a'
diff --git a/Tools/Implementation/ImplementationReport.xsl b/Tools/Implementation/ImplementationReport.xsl
index 59533cba..1050709c 100644
--- a/Tools/Implementation/ImplementationReport.xsl
+++ b/Tools/Implementation/ImplementationReport.xsl
@@ -143,7 +143,7 @@
                       <xsl:call-template name="size_is_not_unlimited">
                         <xsl:with-param name="icid">EBML-ELEM-UNKNOWN-SIZE</xsl:with-param>
                         <xsl:with-param name="version">1</xsl:with-param>
-                        <xsl:with-param name="element" select="mmt:MicroMediaTrace//mmt:b[not(ancestor::mmt:b[@n='FileData'])][@n!='Segment'][@n!='Cluster'][mmt:b[1][@n='Header']/mmt:d[@n='Name']][mmt:b[1][@n='Header']/mmt:d[@n='Size']='Unlimited']"/>
+                        <xsl:with-param name="element" select="mmt:MicroMediaTrace//mmt:b[not(ancestor::mmt:b[@n='FileData'])][@n!='Segment'][@n!='Cluster'][mmt:b[1][@n='Header']/mmt:d[@n='Name']][mmt:b[1][@n='Header']/mmt:d[@n='Size' and (.='Unlimited' or @*[starts-with(name(), 'i')]='Unlimited')]]"/>
                       </xsl:call-template>
                       <!-- /EBML-ELEM-UNKNOWN-SIZE -->
                       <!-- EBML-ELEMENT-NONMULTIPLES -->
@@ -1571,9 +1571,7 @@
           <xsl:variable name="ElementName">
             <xsl:value-of select="@n"/>
           </xsl:variable>
-          <xsl:variable name="element_size">
-            <xsl:value-of select="mmt:b[1][@n='Header']/mmt:d[@n='Size']"/>
-          </xsl:variable>
+          <xsl:variable name="element_size_is_unlimited" select="count(mmt:b[1][@n='Header']/mmt:d[@n='Size' and (.='Unlimited' or @*[starts-with(name(), 'i')]='Unlimited')]) &gt; 0"/>
           <xsl:variable name="values">
             <xsl:for-each select="parent::mmt:b">
               <xsl:call-template name="EBMLElementValue">
@@ -1582,7 +1580,7 @@
             </xsl:for-each>
           </xsl:variable>
           <xsl:choose>
-            <xsl:when test="$element_size != 'Unlimited'">
+            <xsl:when test="not($element_size_is_unlimited)">
               <test>
                 <xsl:attribute name="outcome">pass</xsl:attribute>
                 <xsl:attribute name="ya">

From 8540e2b1b21c90043c3f2232ca872124ab76f1b9 Mon Sep 17 00:00:00 2001
From: Maxime Gervais <gervais.maxime@gmail.com>
Date: Thu, 11 Jun 2026 22:47:49 +0200
Subject: [PATCH 2/2] Fix CI

Signed-off-by: Maxime Gervais <gervais.maxime@gmail.com>
---
 .github/workflows/MediaConch_Checks.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/MediaConch_Checks.yml b/.github/workflows/MediaConch_Checks.yml
index 8bbcec12..5c79dcb4 100644
--- a/.github/workflows/MediaConch_Checks.yml
+++ b/.github/workflows/MediaConch_Checks.yml
@@ -26,7 +26,7 @@ jobs:
             pip --disable-pip-version-check install git+https://github.com/vi/mkvparse.git
           fi
           if [ "$RUNNER_OS" == "macOS" ]; then
-            brew install libtool automake libxslt jansson qt sfk xmlstarlet ffmpeg
+            brew install libtool automake libxslt libevent jansson qt sfk xmlstarlet ffmpeg
             sudo pip --disable-pip-version-check install --prefix /usr/local git+https://github.com/vi/mkvparse.git
           fi
       - name: Get ZenLib info