From f90cbae94a186a5cfa83ebf226a8d6383a947c85 Mon Sep 17 00:00:00 2001
From: evgeny <evgeny@adaptto.ru>
Date: Fri, 16 Oct 2026 18:50:42 +0200
Subject: [PATCH] Enable AMD AMF in Windows ChatGUI FFmpeg build

---
 tools/chatgui/ffmpeg/build_ffmpeg.sh | 39 ++++++++++++++++++++++++++--
 1 file changed, 37 insertions(+), 2 deletions(-)

diff --git a/tools/chatgui/ffmpeg/build_ffmpeg.sh b/tools/chatgui/ffmpeg/build_ffmpeg.sh
index c64b5bdf..c88bff21 100755
--- a/tools/chatgui/ffmpeg/build_ffmpeg.sh
+++ b/tools/chatgui/ffmpeg/build_ffmpeg.sh
@@ -6,6 +6,8 @@ BUILD_DIR="$SCRIPT_DIR/ffmpeg_build"
 SRC_DIR="$BUILD_DIR/src"
 INSTALL_DIR="$BUILD_DIR/install"
 JOBS=$(nproc 2>/dev/null || echo 4)
+AMF_HEADERS_VERSION="${AMF_HEADERS_VERSION:-1.5.3}"
+AMF_MARKER="$INSTALL_DIR/share/utun-ffmpeg-amf-enabled"
 
 case "$(uname -s)" in
     Linux)                      PLATFORM=linux ;;
@@ -62,6 +64,7 @@ check_cmd nasm
 check_cmd pkg-config
 check_cmd meson
 check_cmd git
+check_cmd curl
 
 # ============================================================================
 # Step 1: Codec libraries (static .a, built with -fPIC)
@@ -202,7 +205,26 @@ fi
 # ============================================================================
 # Step 2: FFmpeg
 # ============================================================================
-if [ -f "$INSTALL_DIR/lib/pkgconfig/libavcodec.pc" ]; then
+if [ "$PLATFORM" = "windows" ] && [ ! -f "$INSTALL_DIR/include/AMF/core/Factory.h" ]; then
+    AMF_ARCHIVE="$SRC_DIR/AMF-headers-v$AMF_HEADERS_VERSION.tar.gz"
+    AMF_EXTRACT_DIR="$SRC_DIR/amf-headers-$AMF_HEADERS_VERSION"
+    mkdir -p "$AMF_EXTRACT_DIR" "$INSTALL_DIR/include/AMF"
+    if [ ! -f "$AMF_ARCHIVE" ]; then
+        log "Download AMD AMF headers v$AMF_HEADERS_VERSION..."
+        curl -fL --retry 3 -o "$AMF_ARCHIVE" \
+            "https://github.com/GPUOpen-LibrariesAndSDKs/AMF/releases/download/v$AMF_HEADERS_VERSION/AMF-headers-v$AMF_HEADERS_VERSION.tar.gz"
+    fi
+    log "Extract AMD AMF headers..."
+    tar -xzf "$AMF_ARCHIVE" -C "$AMF_EXTRACT_DIR"
+    AMF_FACTORY_HEADER=$(find "$AMF_EXTRACT_DIR" -type f -path '*/AMF/core/Factory.h' -print -quit)
+    [ -n "$AMF_FACTORY_HEADER" ] || die "AMF headers archive does not contain AMF/core/Factory.h"
+    AMF_HEADER_ROOT="${AMF_FACTORY_HEADER%/AMF/core/Factory.h}"
+    cp -a "$AMF_HEADER_ROOT/AMF/." "$INSTALL_DIR/include/AMF/"
+    log "AMD AMF headers installed in $INSTALL_DIR/include/AMF"
+fi
+
+if [ -f "$INSTALL_DIR/lib/pkgconfig/libavcodec.pc" ] \
+    && { [ "$PLATFORM" != "windows" ] || [ -f "$AMF_MARKER" ]; }; then
     log "FFmpeg already built, skipping."
     log "Done: $INSTALL_DIR"
     exit 0
@@ -252,16 +274,29 @@ CONFIGURE_ARGS=(
 
 if [ "$PLATFORM" = "windows" ]; then
     CONFIGURE_ARGS+=(
-        --enable-d3d11va --enable-dxva2
+        --enable-d3d11va --enable-dxva2 --enable-amf
     )
 fi
 
 "./configure" "${CONFIGURE_ARGS[@]}"
 
+if [ "$PLATFORM" = "windows" ]; then
+    for encoder in CONFIG_H264_AMF_ENCODER CONFIG_HEVC_AMF_ENCODER; do
+        grep -Eq "^#define $encoder 1$" config_components.h \
+            || die "FFmpeg configure did not enable $encoder; check AMF headers and config.log"
+    done
+    rm -f "$AMF_MARKER"
+fi
+
 log "Build FFmpeg..."
 make -j"$JOBS"
 make install
 
+if [ "$PLATFORM" = "windows" ]; then
+    mkdir -p "$(dirname "$AMF_MARKER")"
+    touch "$AMF_MARKER"
+fi
+
 log "==============================================================="
 log "FFmpeg build SUCCESS"
 log "Install prefix: $INSTALL_DIR"