MACOS编译FFMPEG库

1.下载ffmpeg4.3.1源码

2.解压

./configure --prefix&＃61;/usr/local --enable-gpl --enable-nonfree --enable-libass\  --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus \  --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid

创建一个编译脚本vi mffmpeg.sh

chmod 777 mffmpeg.sh

#!/bin/sh# directories
FF_VERSION&＃61;"4.3.1"
#FF_VERSION&＃61;"snapshot-git"
if [[ $FFMPEG_VERSION !&＃61; "" ]]; thenFF_VERSION&＃61;$FFMPEG_VERSION
fi
SOURCE&＃61;"ffmpeg-$FF_VERSION"
FAT&＃61;"FFmpeg-iOS"SCRATCH&＃61;"scratch"
# must be an absolute path
THIN&＃61;&＃96;pwd&＃96;/"thin"# absolute path to x264 library
#X264&＃61;&＃96;pwd&＃96;/fat-x264#FDK_AAC&＃61;&＃96;pwd&＃96;/../fdk-aac-build-script-for-iOS/fdk-aac-iosCONFIGURE_FLAGS&＃61;"--enable-cross-compile --disable-debug --disable-programs \--disable-doc --enable-pic"if [ "$X264" ]
thenCONFIGURE_FLAGS&＃61;"$CONFIGURE_FLAGS --enable-gpl --enable-libx264"
fiif [ "$FDK_AAC" ]
thenCONFIGURE_FLAGS&＃61;"$CONFIGURE_FLAGS --enable-libfdk-aac --enable-nonfree"
fi# avresample
#CONFIGURE_FLAGS&＃61;"$CONFIGURE_FLAGS --enable-avresample"ARCHS&＃61;"arm64 armv7 x86_64 i386"COMPILE&＃61;"y"
LIPO&＃61;"y"DEPLOYMENT_TARGET&＃61;"8.0"if [ "$*" ]
thenif [ "$*" &＃61; "lipo" ]then# skip compileCOMPILE&＃61;elseARCHS&＃61;"$*"if [ $# -eq 1 ]then# skip lipoLIPO&＃61;fifi
fiif [ "$COMPILE" ]
thenif [ ! &＃96;which yasm&＃96; ]thenecho &＃39;Yasm not found&＃39;if [ ! &＃96;which brew&＃96; ]thenecho &＃39;Homebrew not found. Trying to install...&＃39;ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" \|| exit 1fiecho &＃39;Trying to install Yasm...&＃39;brew install yasm || exit 1fiif [ ! &＃96;which gas-preprocessor.pl&＃96; ]thenecho &＃39;gas-preprocessor.pl not found. Trying to install...&＃39;(curl -L https://github.com/libav/gas-preprocessor/raw/master/gas-preprocessor.pl \-o /usr/local/bin/gas-preprocessor.pl \&& chmod &＃43;x /usr/local/bin/gas-preprocessor.pl) \|| exit 1fiif [ ! -r $SOURCE ]thenecho &＃39;FFmpeg source not found. Trying to download...&＃39;curl http://www.ffmpeg.org/releases/$SOURCE.tar.bz2 | tar xj \|| exit 1fiCWD&＃61;&＃96;pwd&＃96;for ARCH in $ARCHSdoecho "building $ARCH..."mkdir -p "$SCRATCH/$ARCH"cd "$SCRATCH/$ARCH"CFLAGS&＃61;"-arch $ARCH"if [ "$ARCH" &＃61; "i386" -o "$ARCH" &＃61; "x86_64" ]thenPLATFORM&＃61;"iPhoneSimulator"CFLAGS&＃61;"$CFLAGS -mios-simulator-version-min&＃61;$DEPLOYMENT_TARGET"elsePLATFORM&＃61;"iPhoneOS"CFLAGS&＃61;"$CFLAGS -mios-version-min&＃61;$DEPLOYMENT_TARGET -fembed-bitcode"if [ "$ARCH" &＃61; "arm64" ]thenEXPORT&＃61;"GASPP_FIX_XCODE5&＃61;1"fifiXCRUN_SDK&＃61;&＃96;echo $PLATFORM | tr &＃39;[:upper:]&＃39; &＃39;[:lower:]&＃39;&＃96;CC&＃61;"xcrun -sdk $XCRUN_SDK clang"# force "configure" to use "gas-preprocessor.pl" (FFmpeg 3.3)if [ "$ARCH" &＃61; "arm64" ]thenAS&＃61;"gas-preprocessor.pl -arch aarch64 -- $CC"elseAS&＃61;"gas-preprocessor.pl -- $CC"fiCXXFLAGS&＃61;"$CFLAGS"LDFLAGS&＃61;"$CFLAGS"if [ "$X264" ]thenCFLAGS&＃61;"$CFLAGS -I$X264/include"LDFLAGS&＃61;"$LDFLAGS -L$X264/lib"fiif [ "$FDK_AAC" ]thenCFLAGS&＃61;"$CFLAGS -I$FDK_AAC/include"LDFLAGS&＃61;"$LDFLAGS -L$FDK_AAC/lib"fiTMPDIR&＃61;${TMPDIR/%\/} $CWD/$SOURCE/configure \--target-os&＃61;darwin \--arch&＃61;$ARCH \--cc&＃61;"$CC" \--as&＃61;"$AS" \$CONFIGURE_FLAGS \--extra-cflags&＃61;"$CFLAGS" \--extra-ldflags&＃61;"$LDFLAGS" \--prefix&＃61;"$THIN/$ARCH" \|| exit 1make -j3 install $EXPORT || exit 1cd $CWDdone
fiif [ "$LIPO" ]
thenecho "building fat binaries..."mkdir -p $FAT/libset - $ARCHSCWD&＃61;&＃96;pwd&＃96;cd $THIN/$1/libfor LIB in *.adocd $CWDecho lipo -create &＃96;find $THIN -name $LIB&＃96; -output $FAT/lib/$LIB 1>&2lipo -create &＃96;find $THIN -name $LIB&＃96; -output $FAT/lib/$LIB || exit 1donecd $CWDcp -rf $THIN/$1/include $FAT
fiecho Done


编译ios&＃xff1a;./mffmpeg.sh lipo

编译安卓&＃xff1a;./mffmpeg.sh arm64 armv7 x86_64

生产库文件&＃xff0c;接下来应用到Xcode工程

liuMacBook-Pro:Downloads liuoliver$ ls
FFmpeg-iOS ffmpeg-4.3.1 pucca-pseudoroom
arm64 mffmpeg.sh thin
liuMacBook-Pro:Downloads liuoliver$ cd thin
liuMacBook-Pro:thin liuoliver$ ls
arm64 armv7 x86_64 x86_64.zip
liuMacBook-Pro:thin liuoliver$