From 09622b6cca6c0c3e3acb3ccb19f6d64bdbd20e66 Mon Sep 17 00:00:00 2001
From: Rami Potinkara <rami.potinkara@qt.io>
Date: Fri, 19 Sep 2025 11:37:41 +0300
Subject: [PATCH] Android: FFmpeg to support 16KB page sizes on Windows

This patch introduces 16KB page size support for Windows
host to do Qt for Android build.

Currently Windows only builds FFmpeg on armeabi-v7a ABI.
32-bit ABI's like armeabi-v7a do not support 16KB page
sizes so the build is done for 4KB page size.

Amends ce488ecbc125cb3484f1cbed592ac9e28867eb66

Task-number: QTBUG-139762
Pick-to: 6.9 6.8 6.5
Change-Id: Ife7d56dd4a9f6d2892127571cab616b3f861dee6
Reviewed-by: Tero Heikkinen <tero.heikkinen@qt.io>
(cherry picked from commit 05b5626379e1ac3faf55a90c713813176e9051e6)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 .../common/windows/install-ffmpeg.ps1         | 21 +++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/coin/provisioning/common/windows/install-ffmpeg.ps1 b/coin/provisioning/common/windows/install-ffmpeg.ps1
index 7f0ee7cb..d6a15c5f 100644
--- a/coin/provisioning/common/windows/install-ffmpeg.ps1
+++ b/coin/provisioning/common/windows/install-ffmpeg.ps1
@@ -205,7 +205,8 @@ function InstallAndroidArmv7 {
         [string]$ndk_root,
         [string]$ffmpeg_dir_android_envvar_name,
         [string]$ndk_version,
-        [string]$android_openssl_path  # OpenSSL is built for Android using NDK, NDK versions for OpenSSL+FFmpeg should match
+        [string]$android_openssl_path,  # OpenSSL is built for Android using NDK, NDK versions for OpenSSL+FFmpeg should match
+        [string]$android_page_size
     )
     $shared=$true
     $target_toolchain_arch="armv7a-linux-androideabi"
@@ -227,8 +228,10 @@ function InstallAndroidArmv7 {
     $strip="${toolchain_bin}/llvm-strip.exe"
     $openssl_path = $android_openssl_path.Replace("\", "/")
 
-    New-Item -ItemType SymbolicLink -Path ${openssl_path}/armeabi-v7a/libcrypto.so -Target ${openssl_path}/armeabi-v7a/libcrypto_3.so
-    New-Item -ItemType SymbolicLink -Path ${openssl_path}/armeabi-v7a/libssl.so -Target ${openssl_path}/armeabi-v7a/libssl_3.so
+    Write-Host "Copying _3.so's to .so's"
+    Copy-Item -Path ${openssl_path}/armeabi-v7a/libcrypto_3.so -Destination ${openssl_path}/armeabi-v7a/libcrypto.so
+    Copy-Item -Path ${openssl_path}/armeabi-v7a/libssl_3.so -Destination ${openssl_path}/armeabi-v7a/libssl.so
+
 
     $config = GetFfmpegDefaultConfiguration
     $config += " --enable-cross-compile --target-os=android --enable-jni --enable-mediacodec --enable-openssl --enable-pthreads --enable-neon --disable-asm --disable-indev=android_camera"
@@ -236,6 +239,16 @@ function InstallAndroidArmv7 {
     $config += " --cc=${cc} --cxx=${cxx} --ar=${ar} --ranlib=${ranlib}"
     $config += " --extra-cflags=-I${android_openssl_path}/include --extra-ldflags=-L${android_openssl_path}/armeabi-v7a"
     $config += " --extra-cflags=-I${openssl_path}/include --extra-ldflags=-L${openssl_path}/armeabi-v7a"
+    if ($android_page_size -eq "use_16kb_page_size"){
+        $config += " --extra-ldflags=-Wl,-z,max-page-size=16384"
+        Write-Host "FFmpeg Android using 16KB page sizes"
+    } elseif ($android_page_size -eq "use_4kb_page_size") {
+        Write-Host "FFmpeg Android using 4KB page sizes"
+    } else {
+        Write-Host "Error: FFmpeg Android page_size must be: use_16kb_page_size or: use_16kb_page_size got: $android_page_size"
+        return false
+    }
+
     $config += " --strip=$strip"
 
     $buildSystem = "android-arm"
@@ -283,7 +296,7 @@ function InstallFfmpegsAMD64 {
     $llvmMingwRes = InstallLlvmMingwFfmpeg
     if ($env:ANDROID_NDK_ROOT_LATEST) {
         Write-Host "Install ffmpeg using latest supported Android NDK"
-        $androidArmV7Res = InstallAndroidArmv7 -ndk_root $env:ANDROID_NDK_ROOT_LATEST -ffmpeg_dir_android_envvar_name "FFMPEG_DIR_ANDROID_ARMV7_NDK_LATEST" -ndk_version "latest" -android_openssl_path $env:OPENSSL_ANDROID_HOME_LATEST
+        $androidArmV7Res = InstallAndroidArmv7 -ndk_root $env:ANDROID_NDK_ROOT_LATEST -ffmpeg_dir_android_envvar_name "FFMPEG_DIR_ANDROID_ARMV7_NDK_LATEST" -ndk_version "latest" -android_openssl_path $env:OPENSSL_ANDROID_HOME_LATEST -android_page_size "use_4kb_page_size"
     } else {
         throw "Error: env.var ANDROID_NDK_ROOT_LATEST is not set for FFmpeg"
     }