mac系统编译 ffmpeg ios 静态库

最新推荐文章于 2025-06-26 15:22:46 发布

Ternence_Hsu

最新推荐文章于 2025-06-26 15:22:46 发布

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分类专栏： ffmpeg 文章标签： ios ffmpeg mac armv7 armv7s

本文链接：https://blog.youkuaiyun.com/ternence_hsu/article/details/54380607

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本文介绍如何在iOS平台上从源码编译FFmpeg，包括所需工具的下载与配置，以及编译脚本的使用方法。适用于希望将FFmpeg集成到iOS应用中的开发者。

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 1、源码下载

  ffmpeg 源码：

 
 https://ffmpeg.org/download.html#releases

  gas-preprocessor 工具 （编译脚本会自己下载）

 
 https://github.com/yuvi/gas-preprocessor

  ffmpeg ios 编译脚本：

 
 https://github.com/kewlbear/FFmpeg-iOS-build-script

 2、编译

  修改 编译脚本

  如果系统里面缺工具，脚本会自动进行下载

#!/bin/sh

# directories
SOURCE="ffmpeg"
FAT="FFmpeg-iOS"

SCRATCH="scratch"
# must be an absolute path
THIN=`pwd`/"thin"

# absolute path to x264 library
#X264=`pwd`/fat-x264

#FDK_AAC=`pwd`/../fdk-aac-build-script-for-iOS/fdk-aac-ios #--disable-yasm

CONFIGURE_FLAGS="--enable-cross-compile --disable-debug --disable-programs \
                 --disable-doc --enable-pic "

if [ "$X264" ]
then
	CONFIGURE_FLAGS="$CONFIGURE_FLAGS --enable-gpl --enable-libx264"
fi

if [ "$FDK_AAC" ]
then
	CONFIGURE_FLAGS="$CONFIGURE_FLAGS --enable-libfdk-aac"
fi

# avresample
#CONFIGURE_FLAGS="$CONFIGURE_FLAGS --enable-avresample"

ARCHS="arm64 armv7 armv7s x86_64 i386"

COMPILE="y"
LIPO="y"

DEPLOYMENT_TARGET="6.0"

if [ "$*" ]
then
	if [ "$*" = "lipo" ]
	then
		# skip compile
		COMPILE=
	else
		ARCHS="$*"
		if [ $# -eq 1 ]
		then
			# skip lipo
			LIPO=
		fi
	fi
fi

if [ "$COMPILE" ]
then
if [ ! `which yasm` ]
then
	echo 'Yasm not found'
	if [ ! `which brew` ]
	then
		echo 'Homebrew not found. Trying to install...'
                  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" \
		|| exit 1
	fi
	echo 'Trying to install Yasm...'
	brew install yasm || exit 1
fi
	if [ ! `which gas-preprocessor.pl` ]
then
	echo 'gas-preprocessor.pl not found. Trying to install...'
	(curl -L https://github.com/libav/gas-preprocessor/raw/master/gas-preprocessor.pl \
			-o /usr/local/bin/gas-preprocessor.pl \
			&& chmod +x /usr/local/bin/gas-preprocessor.pl) \
			|| exit 1
fi

	if [ ! -r $SOURCE ]
	then
		echo 'FFmpeg source not found. Trying to download...'
		curl http://www.ffmpeg.org/releases/$SOURCE.tar.bz2 | tar xj \
			|| exit 1
	fi

	CWD=`pwd`
	for ARCH in $ARCHS
	do
		echo "building $ARCH..."
		mkdir -p "$SCRATCH/$ARCH"
		cd "$SCRATCH/$ARCH"

		CFLAGS="-arch $ARCH"
		if [ "$ARCH" = "i386" -o "$ARCH" = "x86_64" ]
		then
		    PLATFORM="iPhoneSimulator"
		    CFLAGS="$CFLAGS -mios-simulator-version-min=$DEPLOYMENT_TARGET"
		else
		    PLATFORM="iPhoneOS"
		    CFLAGS="$CFLAGS -mios-version-min=$DEPLOYMENT_TARGET -fembed-bitcode"
		    if [ "$ARCH" = "arm64" ]
		    then
		        EXPORT="GASPP_FIX_XCODE5=1"
		    fi
		fi

		XCRUN_SDK=`echo $PLATFORM | tr '[:upper:]' '[:lower:]'`
		CC="xcrun -sdk $XCRUN_SDK clang"
		CXXFLAGS="$CFLAGS"
		LDFLAGS="$CFLAGS"
		if [ "$X264" ]
		then
			CFLAGS="$CFLAGS -I$X264/include"
			LDFLAGS="$LDFLAGS -L$X264/lib"
		fi
		if [ "$FDK_AAC" ]
		then
			CFLAGS="$CFLAGS -I$FDK_AAC/include"
			LDFLAGS="$LDFLAGS -L$FDK_AAC/lib"
		fi

		TMPDIR=${TMPDIR/%\/} $CWD/$SOURCE/configure \
		    --target-os=darwin \
		    --arch=$ARCH \
		    --cc="$CC" \
		    $CONFIGURE_FLAGS \
		    --extra-cflags="$CFLAGS" \
		    --extra-ldflags="$LDFLAGS" \
		    --prefix="$THIN/$ARCH" \
--disable-ffmpeg \
--disable-ffplay \
--disable-ffprobe \
--disable-ffserver \
--disable-iconv \
--disable-bzlib \
--enable-avresample \
--enable-avresample  \
--enable-pic	\
--disable-doc	\
--disable-decoders \
--enable-decoder=h264 \
--disable-encoders \
--disable-demuxers \
--enable-demuxer=avi \
--disable-muxers \
--enable-muxer=avi \
--disable-filters \
		|| exit 1

		make -j3 install $EXPORT || exit 1
		cd $CWD
	done
fi

if [ "$LIPO" ]
then
	echo "building fat binaries..."
	mkdir -p $FAT/lib
	set - $ARCHS
	CWD=`pwd`
	cd $THIN/$1/lib
	for LIB in *.a
	do
		cd $CWD
		echo lipo -create `find $THIN -name $LIB` -output $FAT/lib/$LIB 1>&2
		lipo -create `find $THIN -name $LIB` -output $FAT/lib/$LIB || exit 1
	done

	cd $CWD
	cp -rf $THIN/$1/include $FAT
fi

echo Done

   把ffmpeg源码解压到当前文件夹，文件夹名字修改为ffmpeg
 

   编译程序：
 

 
  ./build-ffmpeg.sh
 

   编译成功后，可以在FFmpeg-iOS目录下面看到 include lib 文件
 
   ternencedeMac-mini:lib ternence$ lipo -info libavcodec.a 
 
   Architectures in the fat file: libavcodec.a are: armv7 armv7s i386 x86_64 arm64
 
   我们这里编译 armv7 armv7s i386 x86_64 arm64 这几个平台的库出来了
 
   大家可以根据需要自由的进行裁剪和修改
 
  3、编译库文件
 
   我编译了ffmpeg-2.0.2.tar.bz2 ffmpeg-3.2.2.tar.bz2
 
   源码和编译后的库文件大家可以到下面的路径进行下载：
 
   源码：链接：http://pan.baidu.com/s/1qYARLBu 密码：hsnc
 
   编译出来的库文件：链接：http://pan.baidu.com/s/1sljf1b3 密码：drkm
 
   修改后的编译脚本：链接：http://pan.baidu.com/s/1jHGn5A2 密码：ss71