Add support for ARM (untested)

Author: Marginal

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "aom"]
 	path = aom
 	url = https://aomedia.googlesource.com/aom
+[submodule "gas-preprocessor"]
+	path = gas
+	url = https://github.com/FFmpeg/gas-preprocessor.git

BUILDING.md

@@ -4,6 +4,7 @@ Building
 Prerequisites
 -------
 * Requires Xcode 6.1 and macOS 10.10 SDK or later.
+* Before building, update submodules with `git submodule update --init --recursive`.
 * ffmpeg and its dependencies require "CMake" and the "yasm" assembler to build. You can obtain them
   through [Homebrew](https://brew.sh) via `brew install cmake yasm`.
 

QLVideo.xcodeproj/project.pbxproj

@@ -24,7 +24,6 @@
 		AB0527E31D2947BB009A809B /* libiconv.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = AB7C714819F8A6970006104E /* libiconv.dylib */; };
 		AB0527E41D2947CF009A809B /* libbz2.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = AB7C714019F8A5C50006104E /* libbz2.dylib */; };
 		AB0527E51D2947D1009A809B /* libz.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = AB7C714619F8A6730006104E /* libz.dylib */; };
-		AB0680CF1EDB924C00534129 /* QTKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AB0680CD1EDB913400534129 /* QTKit.framework */; };
 		AB2ACD9E1A696F72002411DF /* AVFoundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AB2ACD9D1A696F72002411DF /* AVFoundation.framework */; };
 		AB66474F261ABBCB00D23514 /* libaom.a in Frameworks */ = {isa = PBXBuildFile; fileRef = AB66474E261ABBB600D23514 /* libaom.a */; };
 		AB66477D261B43B500D23514 /* libaom.a in Frameworks */ = {isa = PBXBuildFile; fileRef = AB66474E261ABBB600D23514 /* libaom.a */; };
@@ -160,7 +159,6 @@
 		AB00C5D21A682FB700D71399 /* el */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = el; path = el.lproj/Localizable.strings; sourceTree = "<group>"; };
 		AB0527C81D2946F1009A809B /* bench.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = bench.m; sourceTree = "<group>"; };
 		AB0527CE1D294732009A809B /* benchmark */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = benchmark; sourceTree = BUILT_PRODUCTS_DIR; };
-		AB0680CD1EDB913400534129 /* QTKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = QTKit.framework; path = System/Library/Frameworks/QTKit.framework; sourceTree = SDKROOT; };
 		AB0B80BF1EED41F1008A22DC /* cs */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = cs; path = cs.lproj/schema.strings; sourceTree = "<group>"; };
 		AB0B80C11EED4204008A22DC /* ru */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = ru; path = ru.lproj/schema.strings; sourceTree = "<group>"; };
 		AB0B80C21EED4215008A22DC /* cs */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = cs; path = cs.lproj/Localizable.strings; sourceTree = "<group>"; };
@@ -274,7 +272,6 @@
 				ABE23BD81D25914C004E9D26 /* AudioToolbox.framework in Frameworks */,
 				ABE23BD31D258F6C004E9D26 /* VideoToolbox.framework in Frameworks */,
 				ABE23BDB1D2591F8004E9D26 /* CoreMedia.framework in Frameworks */,
-				AB0680CF1EDB924C00534129 /* QTKit.framework in Frameworks */,
 				AB7C715019F9E2A50006104E /* libavfilter.a in Frameworks */,
 				AB7C715119F9E2A80006104E /* libavformat.a in Frameworks */,
 				AB7C715219F9E2AB0006104E /* libavcodec.a in Frameworks */,
@@ -415,7 +412,6 @@
 				AB93B0F7196CA60500708B2E /* QuickLook.framework */,
 				AB93B0F9196CA60500708B2E /* ApplicationServices.framework */,
 				AB93B0FB196CA60500708B2E /* CoreServices.framework */,
-				AB0680CD1EDB913400534129 /* QTKit.framework */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";

buildaom

@@ -5,23 +5,28 @@ if [ "${ACTION}" == "clean" ]; then
 	echo Remove "${OUTDIR}"
 	if [ -n "${OUTDIR}" ]; then
 		rm -rf "${OUTDIR}"
+		for ARCH in $ARCHS; do
+			rm -rf "${OUTDIR}/${ARCH}"
+		done
 	fi
 else
 	# For cmake & yasm
 	PATH=$PATH:/usr/local/bin
 
-	if [ ! -f "${SRCROOT}/${TARGET_NAME}/CMakeLists.txt" ]; then
-		echo Clone to ${SRCROOT}/${TARGET_NAME}
-		cd "${SRCROOT}"
-		git submodule update --init
-	fi
 	echo Build in ${OUTDIR}
-	mkdir -p "${OUTDIR}"
-	cd "${OUTDIR}"
-	if [ -f CMakeCache.txt ]; then
-		echo Skipping cmake
-	else
-		cmake "${SRCROOT}/${TARGET_NAME}" -DCMAKE_BUILD_TYPE=${CONFIGURATION} -DCONFIG_AV1_ENCODER=0 -DENABLE_DOCS=0 -DENABLE_EXAMPLES=0 -DENABLE_TOOLS=0 -DENABLE_SSE4_2=0 -DENABLE_AVX=0 -DENABLE_AVX2=0
-	fi
-	make -j`sysctl -n hw.physicalcpu` ${ACTION}
+	BUILT=""
+	for ARCH in $ARCHS; do
+		mkdir -p "${OUTDIR}/${ARCH}"
+		cd "${OUTDIR}/${ARCH}"
+		if [ -f CMakeCache.txt ]; then
+			echo Skipping cmake
+		elif [ $ARCH == arm64 ]; then
+			cmake "${SRCROOT}/${TARGET_NAME}" -DCMAKE_BUILD_TYPE=${CONFIGURATION} -DCMAKE_OSX_ARCHITECTURES=${ARCH} -DCONFIG_AV1_ENCODER=0 -DENABLE_DOCS=0 -DENABLE_EXAMPLES=0 -DENABLE_TOOLS=0 -DAOM_TARGET_CPU=arm64 -DCONFIG_RUNTIME_CPU_DETECT=0
+		else
+			cmake "${SRCROOT}/${TARGET_NAME}" -DCMAKE_BUILD_TYPE=${CONFIGURATION} -DCMAKE_OSX_ARCHITECTURES=${ARCH} -DCONFIG_AV1_ENCODER=0 -DENABLE_DOCS=0 -DENABLE_EXAMPLES=0 -DENABLE_TOOLS=0 -DENABLE_SSE4_2=0 -DENABLE_AVX=0 -DENABLE_AVX2=0
+		fi
+		make -j`sysctl -n hw.physicalcpu` ${ACTION}
+		BUILT="${BUILT} ${OUTDIR}/${ARCH}/libaom.a"
+	done
+	lipo -create $BUILT -output ${OUTDIR}/libaom.a
 fi

buildffmpeg

@@ -5,28 +5,45 @@ if [ "${ACTION}" == "clean" ]; then
 	echo Remove "${OUTDIR}"
 	if [ -n "${OUTDIR}" ]; then
 		rm -rf "${OUTDIR}"
+		for ARCH in $ARCHS; do
+			rm -rf "${OUTDIR}/${ARCH}"
+		done
 	fi
 else
-	# For yasm
-	PATH=$PATH:/usr/local/bin
+	# For yasm and gas
+	PATH=$PATH:${SRCROOT}/gas:/usr/local/bin
 
-	if [ ! -x "${SRCROOT}/${TARGET_NAME}/configure" ]; then
-		echo Clone to ${SRCROOT}/${TARGET_NAME}
-		cd "${SRCROOT}"
-		git submodule update --init
-	fi
 	echo Build in ${OUTDIR}
-	mkdir -p "${OUTDIR}"
-	cd "${OUTDIR}"
-	if [ -f config.h ]; then
-		echo Skipping configure
-	else
-		if [ "${CONFIGURATION}" == "Debug" ]; then
-			FLAGS="--disable-optimizations"
+	BUILT=""
+	for ARCH in $ARCHS; do
+		mkdir -p "${OUTDIR}/${ARCH}"
+		cd "${OUTDIR}/${ARCH}"
+		if [ -f config.h ]; then
+			echo Skipping configure
 		else
-			FLAGS=
+			if [ "${CONFIGURATION}" == "Debug" ]; then
+				FLAGS="--disable-optimizations"
+			else
+				FLAGS=
+			fi
+			if [ $ARCH == arm64 ]; then
+				FLAGS="$FLAGS --enable-cross-compile --enable-vfp --enable-neon"
+			elif [ $ARCH == x86_64 ]; then
+				FLAGS="$FLAGS --cpu=core2"
+			fi
+			"${SRCROOT}/${TARGET_NAME}/configure" --arch=${ARCH} --cc="clang -arch ${ARCH} -L${TARGET_BUILD_DIR}/aom" ${FLAGS} --extra-cflags=-I${SRCROOT}/aom --extra-ldexeflags=-liconv --disable-stripping --enable-gpl --enable-hardcoded-tables --disable-doc --disable-pthreads --disable-indevs --disable-outdevs --disable-network --disable-avdevice --disable-muxers --disable-encoders --disable-bsfs --disable-filters --disable-protocols --disable-autodetect --enable-appkit --enable-avfoundation --enable-bzlib --enable-coreimage --enable-iconv --enable-libaom --enable-zlib --enable-audiotoolbox --enable-videotoolbox --enable-muxer=image2 --enable-encoder=png --enable-protocol=file
 		fi
-		"${SRCROOT}/${TARGET_NAME}/configure" --cc=clang --arch=x86_64 --cpu=core2 --extra-cflags=-I${SRCROOT}/aom --extra-ldexeflags="-liconv -L${TARGET_BUILD_DIR}/aom" --disable-stripping --enable-gpl --enable-hardcoded-tables --disable-doc --disable-pthreads --disable-indevs --disable-outdevs --disable-network --disable-avdevice --disable-muxers --disable-encoders --disable-bsfs --disable-filters --disable-protocols --disable-autodetect --enable-appkit --enable-avfoundation --enable-bzlib --enable-coreimage --enable-iconv --enable-libaom --enable-zlib --enable-audiotoolbox --enable-videotoolbox --enable-muxer=image2 --enable-encoder=png --enable-protocol=file ${FLAGS}
-	fi
-	make -j`sysctl -n hw.physicalcpu` ${ACTION}
+		make -j`sysctl -n hw.physicalcpu` ${ACTION}
+		# Assumes there aren't any material client impacting differences in config between archs
+		cp -p ${OUTDIR}/${ARCH}/config.h ${OUTDIR}/
+		cp -p ${OUTDIR}/${ARCH}/libavutil/*.h ${OUTDIR}/libavutil/
+	done
+	for LIB in libavcodec libavfilter libavformat libavutil libpostproc libswresample libswscale; do
+		BUILT=""
+		for ARCH in $ARCHS; do
+			BUILT="${BUILT} ${OUTDIR}/${ARCH}/${LIB}/${LIB}.a"
+		done
+		mkdir -p ${OUTDIR}/${LIB}
+		lipo -create $BUILT -output "${OUTDIR}/${LIB}/${LIB}.a"
+	done
 fi