From 80ca06224b6b416432261d7587829c5d86bd77d8 Mon Sep 17 00:00:00 2001
From: mjbudd77 <mjbudd77@gmail.com>
Date: Wed, 6 Oct 2021 18:29:58 -0400
Subject: [PATCH] Fix for macOSX homebrew ffmpeg bundling error.

---
 pipelines/macOS_BundleFFmpegFix.pl | 42 ++++++++++++++++++++++++++++++
 pipelines/macOS_build.sh           |  3 +++
 2 files changed, 45 insertions(+)
 create mode 100755 pipelines/macOS_BundleFFmpegFix.pl

diff --git a/pipelines/macOS_BundleFFmpegFix.pl b/pipelines/macOS_BundleFFmpegFix.pl
new file mode 100755
index 00000000..77bcb494
--- /dev/null
+++ b/pipelines/macOS_BundleFFmpegFix.pl
@@ -0,0 +1,42 @@
+#!/usr/bin/perl
+
+use strict;
+
+# MacOSX homebrew version of ffmpeg comes with 5 libraries. These libraries depend on each other
+# and it seems that macdeployqt doesn't fix all the library paths when bundling them.
+# This script fixes those bundling issues.
+my $i; my $j; my $k;
+my $LIBPATH=`brew --prefix ffmpeg`;
+my @libList = ( "libavutil", "libavcodec", "libavformat", "libswscale", "libswresample" );
+my $lib; my $otool;
+my @lines;
+
+for ($i=0; $i<=$#libList; $i++)
+{
+   #print "LIB: $libList[$i]\n";
+
+   $lib="$LIBPATH/lib/$libList[$i].dylib";
+   $lib=~s/\n//;
+
+   print "Fixing lib: '$lib'\n";
+
+   $otool=`otool -L $lib`;
+
+   #print "otool: '$otool'\n";
+
+   @lines = split /\n/, $otool;
+
+   for ($j=0; $j<=$#lines; $j++)
+   {
+      for ($k=0; $k<=$#libList; $k++)
+      {
+         if ( $lines[$j] =~ m/\s+(\/.*\/($libList[$k].*\.dylib))/ )
+         {
+            #print "$1  $2\n";
+
+            print("install_name_tool  -change  $1  \@executable_path/../Frameworks/$2  $lib\n");
+            system("install_name_tool  -change  $1  \@executable_path/../Frameworks/$2  $lib");
+         }
+      }
+   }
+}
diff --git a/pipelines/macOS_build.sh b/pipelines/macOS_build.sh
index 1af19682..b2e1e974 100755
--- a/pipelines/macOS_build.sh
+++ b/pipelines/macOS_build.sh
@@ -77,6 +77,9 @@ echo 'Install Optional Dependency ffmpeg'
 echo '****************************************'
 brew  install  ffmpeg
 
+# Fix homebrew ffmpeg libraries so that they work in the bundle.
+sudo $SCRIPT_DIR/macOS_BundleFFmpegFix.pl
+
 #brew  install  zlib  # Already installed in appveyor macOS
 
 export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig: