Build shared FFmpeg on Linux and set dependencies to stubs

Task-number: QTBUG-120990
Change-Id: I8fccf8ef58cf6334e71287450ee30cc2256516d9
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 83adc86c53)

coin/platform_configs/address_sanitizer_platforms.yaml

@@ -8,5 +8,5 @@ Configurations:
     Configure arguments: '-nomake examples -developer-build'
     Environment variables: [
         'CMAKE_ARGS=-DOPENSSL_ROOT_DIR={{.Env.OPENSSL_HOME}}',
-        'NON_QTBASE_CMAKE_ARGS=-DFFMPEG_DIR={{.Env.FFMPEG_DIR}}'
+        'NON_QTBASE_CMAKE_ARGS=-DFFMPEG_DIR={{.Env.FFMPEG_DIR}} -DQT_DEPLOY_FFMPEG=TRUE'
     ]

coin/platform_configs/cmake_platforms.yaml

@@ -14,7 +14,7 @@ Configurations:
     Compiler: 'GCC'
     Features: ['Sccache', 'Documentation', 'UseConfigure', 'DoNotRunTests']
     Configure arguments: '-make examples -developer-build -c++std c++20 -linker gold -qtlibinfix TestInfix -qtnamespace TestNamespace'
-    Environment variables: ['NON_QTBASE_CMAKE_ARGS=-DFFMPEG_DIR={{.Env.FFMPEG_DIR}}']
+    Environment variables: ['NON_QTBASE_CMAKE_ARGS=-DFFMPEG_DIR={{.Env.FFMPEG_DIR}} -DQT_DEPLOY_FFMPEG=TRUE']
 -
     Id: 'ubuntu-22.04'
     Template: 'qtci-linux-Ubuntu-22.04-x86_64-51'
@@ -23,7 +23,7 @@ Configurations:
     Configure arguments: '-nomake examples -release -force-debug-info -separate-debug-info -headersclean -qt-libjpeg -qt-libpng -qt-pcre -qt-harfbuzz -qt-doubleconversion -no-libudev -bundled-xcb-xinput'
     Environment variables: [
         'CMAKE_ARGS=-DOpenGL_GL_PREFERENCE=LEGACY',
-        'NON_QTBASE_CMAKE_ARGS=-DFFMPEG_DIR={{.Env.FFMPEG_DIR}} -DINPUT_headersclean=ON'
+        'NON_QTBASE_CMAKE_ARGS=-DFFMPEG_DIR={{.Env.FFMPEG_DIR}} -DINPUT_headersclean=ON -DQT_DEPLOY_FFMPEG=TRUE'
     ]
 # Test on Ubuntu 22.04 X11
 -
@@ -65,7 +65,7 @@ Configurations:
     Environment variables: [
         'PATH={{.Env.CMAKE_MIN_SUPPORTED_BIN_PATH}}:{{.Env.PATH}}',
         'CMAKE_ARGS=-DOPENSSL_ROOT_DIR={{.Env.OPENSSL_HOME}}',
-        'NON_QTBASE_CMAKE_ARGS=-DFFMPEG_DIR={{.Env.FFMPEG_DIR}}'
+        'NON_QTBASE_CMAKE_ARGS=-DFFMPEG_DIR={{.Env.FFMPEG_DIR}} -DQT_DEPLOY_FFMPEG=TRUE'
     ]
 -
     Id: 'sles-15_sp5-static'

coin/provisioning/common/linux/fix_ffmpeg_dependencies.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# Copyright (C) 2024 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+set -x
+
+lib_dir="$1/lib"
+
+ffmpeg_libs=("avcodec" "avdevice" "avfilter" "avformat" "avutil" "swresample" "swscale")
+
+for lib_name in "${ffmpeg_libs[@]}"; do
+    lib_path="$lib_dir/lib$lib_name.so"
+    pkg_config_file_path="$lib_dir/pkgconfig/lib$lib_name.pc"
+
+    if [ ! -f "$lib_path" ]; then
+        echo "FFmpeg lib $lib_path hasn't been found"
+        exit 1
+    fi
+
+    if [ ! -f "$pkg_config_file_path" ]; then
+        echo "FFmpeg pc file $pkg_config_file_path hasn't been found"
+        exit 1
+    fi
+
+    while read -r line; do
+        if [[ $line =~ .*\[(lib((ssl|crypto|va|va-x11|va-drm)\.so(\.[0-9]+)*))\].* ]]; then
+            patchelf --replace-needed "${BASH_REMATCH[1]}" "libQt6FFmpegStub-${BASH_REMATCH[2]}" $lib_path
+        fi
+    done <<< "$(readelf -d $lib_path | grep '(NEEDED)' )"
+
+    sed -i -E "/^Libs.private:/s/ -l(va|va-x11|va-drm|ssl|crypto)/ -lQt6FFmpegStub-\\1/g;" $pkg_config_file_path
+    patchelf --set-rpath '$ORIGIN' $lib_path
+done

coin/provisioning/common/unix/install-ffmpeg.sh

@@ -71,11 +71,31 @@ build_ffmpeg() {
 }
 
 if [ "$os" == "linux" ]; then
+      # TODO: install patchelf on RHEL and remove the force "static"
+  if [ -f "/etc/redhat-release" ]; then
+    build_type="static"
+  else
+    build_type="$2"
+  fi
+
   install_ff_nvcodec_headers
 
   ffmpeg_config_options+=" --enable-openssl"
+
+  if [ "$build_type" != "static" ]; then
+    ffmpeg_config_options+=" --enable-shared --disable-static"
+  fi
+
   build_ffmpeg
-  sudo mv "$ffmpeg_source_dir/build/installed/usr/local/$ffmpeg_name" "/usr/local"
+
+  output_dir="$ffmpeg_source_dir/build/installed/usr/local/$ffmpeg_name"
+
+  if [ "$build_type" != "static" ]; then
+    fix_dependencies="${BASH_SOURCE%/*}/../linux/fix_ffmpeg_dependencies.sh"
+    "$fix_dependencies" "$output_dir"
+  fi
+
+  sudo mv "$output_dir" "/usr/local"
   SetEnvVar "FFMPEG_DIR" "/usr/local/$ffmpeg_name"
 
 elif [ "$os" == "macos" ] || [ "$os" == "macos-universal" ]; then
@@ -111,3 +131,5 @@ elif [ "$os" == "macos" ] || [ "$os" == "macos-universal" ]; then
 
   SetEnvVar "FFMPEG_DIR" "/usr/local/$ffmpeg_name"
 fi
+
+

coin/provisioning/qtci-linux-SLES-15_SP4-x86_64/90-install-ffmpeg.sh

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 
-source "${BASH_SOURCE%/*}/../common/unix/install-ffmpeg.sh" "linux"
+source "${BASH_SOURCE%/*}/../common/unix/install-ffmpeg.sh" "linux" "static"

coin/provisioning/qtci-linux-SLES-15_SP5-x86_64/90-install-ffmpeg.sh

@@ -2,4 +2,4 @@
 # Copyright (C) 2023 The Qt Company Ltd
 # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-source "${BASH_SOURCE%/*}/../common/unix/install-ffmpeg.sh" "linux"
+source "${BASH_SOURCE%/*}/../common/unix/install-ffmpeg.sh" "linux" "static"

coin/provisioning/qtci-linux-Ubuntu-18.04-x86_64/02-apt.sh

@@ -168,6 +168,8 @@ installPackages+=(ruby)
 installPackages+=(libxslt1-dev)
 installPackages+=(libxml2-dev)
 installPackages+=(libhyphen-dev)
+# Fix dependencies in shared ffmpeg libs
+installPackages+=(patchelf)
 
 echo "Running update for apt"
 waitLoop

coin/provisioning/qtci-linux-Ubuntu-20.04-x86_64/02-apt.sh

@@ -217,6 +217,8 @@ sudo dpkg --add-architecture i386
 installPackages+=(nfs-kernel-server)
 installPackages+=(net-tools)
 installPackages+=(bridge-utils)
+# Fix dependencies in shared ffmpeg libs
+installPackages+=(patchelf)
 
 echo "Running update for apt"
 waitLoop

coin/provisioning/qtci-linux-Ubuntu-22.04-x86_64/02-apt.sh

@@ -235,6 +235,8 @@ installPackages+=(uml-utilities)
 # used for reading vcpkg packages version, from vcpkg.json
 installPackages+=(jq)
 
+installPackages+=(patchelf)
+
 echo "Running update for apt"
 waitLoop
 sudo apt-get update