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diff --git a/‎.github/workflows/build_wheels_macos.yml
Copy file name to clipboardExpand all lines: .github/workflows/build_wheels_macos.yml
+1Lines changed: 1 addition & 0 deletions b/‎.github/workflows/build_wheels_macos.yml
Copy file name to clipboardExpand all lines: .github/workflows/build_wheels_macos.yml
+1Lines changed: 1 addition & 0 deletions
diff --git a/‎travis_config.sh
Copy file name to clipboardExpand all lines: travis_config.sh
+9-28Lines changed: 9 additions & 28 deletions b/‎travis_config.sh
Copy file name to clipboardExpand all lines: travis_config.sh
+9-28Lines changed: 9 additions & 28 deletions
@@ -55,6 +55,7 @@ jobs:
       USE_CCACHE: 1
       UNICODE_WIDTH: 32
       PLAT: x86_64
+      FFMPEG_FORMULA_VERSION: '@4'
       SDIST: ${{ matrix.build_sdist || 0 }}
       ENABLE_HEADLESS: ${{ matrix.without_gui }}
       ENABLE_CONTRIB: ${{ matrix.with_contrib }}
 
@@ -50,7 +50,7 @@ if [ -n "$IS_OSX" ]; then
     function generate_ffmpeg_formula {
         local FF="ffmpeg"
         local LFF="ffmpeg_opencv"
-        local FF_FORMULA; FF_FORMULA=$(brew formula "$FF")
+        local FF_FORMULA; FF_FORMULA=$(brew formula "${FF}${FFMPEG_FORMULA_VERSION}")
         local LFF_FORMULA; LFF_FORMULA="$(dirname "$FF_FORMULA")/${LFF}.rb"
 
         local REGENERATE
@@ -70,8 +70,9 @@ if [ -n "$IS_OSX" ]; then
         if [ -n "$REGENERATE" ]; then
             echo "Regenerating custom ffmpeg formula"
             # Bottle block syntax: https://docs.brew.sh/Bottles#bottle-dsl-domain-specific-language
+            # FfmpegAT4 is a class in ffmpeg@4 formula
             perl -wpe 'BEGIN {our ($found_blank, $bottle_block);}
-                if (/(^class )(Ffmpeg)(\s.*)/) {$_=$1.$2."Opencv".$3."\n"; next;}
+                if (/(^class )(FfmpegAT4)(\s.*)/) {$_=$1."FfmpegOpencv".$3."\n"; next;}
                 if (!$found_blank && /^$/) {$_.="conflicts_with \"ffmpeg\"\n\n"; $found_blank=1; next;}
                 if (!$bottle_block && /^\s*bottle do$/) { $bottle_block=1; next; }
                 if ($bottle_block) { if (/^\s*end\s*$/) { $bottle_block=0} elsif (/^\s*sha256\s/) {$_=""} next; }
@@ -111,34 +112,14 @@ function pre_build {
     CACHE_STAGE=
     export HOMEBREW_NO_AUTO_UPDATE=1
 
-    #after the cache stage, all bottles and Homebrew metadata should be already cached locally
-    # if [ -n "$CACHE_STAGE" ]; then
-    #     brew update
-    #     generate_ffmpeg_formula
-    #     brew_add_local_bottles
-    # fi
-
     echo 'Installing FFmpeg'
 
-    # if [ -n "$CACHE_STAGE" ]; then
-    #     brew_install_and_cache_within_time_limit ffmpeg_opencv || { [ $? -gt 1 ] && return 2 || return 0; }
-    # else
-        brew update
-        generate_ffmpeg_formula
-        brew_add_local_bottles
-        # brew unlink python@2
-        brew install --build-bottle ffmpeg_opencv
-    # fi
-
-    # echo 'Installing qt5'
-
-    # if [ -n "$CACHE_STAGE" ]; then
-    #    echo "Qt5 has bottle, no caching needed"
-    # else
-    #    brew switch qt 5.13.2
-    #    brew pin qt
-    #    export PATH="/usr/local/opt/qt/bin:$PATH"
-    # fi
+    brew update
+    generate_ffmpeg_formula
+    brew_add_local_bottles
+    brew install --build-bottle ffmpeg_opencv
+    # It needs when we use not the latest ffmpeg formula
+    brew link ffmpeg_opencv
 
     if [ -n "$CACHE_STAGE" ]; then
         brew_go_bootstrap_mode 0