mac上編譯FFmpeg

FFmpeg庫下載地址：http://ffmpeg.org/olddownload.html
找到FFmpeg 2.6.9版本下載下來
解壓開啟configure，下拉到2779行，修改下面配置
修改前

SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
LIB_INSTALL_EXTRA_CMD='$$(RANLIB)"$(LIBDIR)/$(LIBNAME)"'
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

修改後

SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
#SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
#LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
#SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
#SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
LIB_INSTALL_EXTRA_CMD='$$(RANLIB)"$(LIBDIR)/$(LIBNAME)"'
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
SLIB_INSTALL_LINKS='$(SLIBNAME)'

修改完儲存檔案
建立build_android.sh，放在檔案FFmpeg 2.6.9下，裡寫入

#!/bin/bash
make clean
export NDK=/Users/cool/Library/Android/sdk/ndk-bundle
export SYSROOT=$NDK/platforms/android-9/arch-arm/
export TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64
export CPU=arm
export PREFIX=$(pwd)/android/$CPU
export ADDI_CFLAGS="-marm"

./configure --target-os=linux \
--prefix=$PREFIX --arch=arm \
--disable-doc \
--enable-shared \
--disable-static \
--disable-yasm \
--disable-symver \
--enable-gpl \
--disable-ffmpeg \
--disable-ffplay \
--disable-ffprobe \
--disable-ffserver \
--disable-doc \
--disable-symver \
--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
--enable-cross-compile \
--sysroot=$SYSROOT \
--extra-cflags="-Os -fpic $ADDI_CFLAGS" \
--extra-ldflags="$ADDI_LDFLAGS" \
$ADDITIONAL_CONFIGURE_FLAG
make clean
make
make install

注：

• NDK修改為你本地的路徑
• TOOLCHAIN，如果你是linux環境的話為$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64

完了cd到FFmpeg 2.6.9，然後執行./build_android.sh
執行完後同級目錄會生成android目錄，裡面包含生成的so庫和標頭檔案，特別注意的是我們需要的so是帶後面帶數字的，比如：libavcodec-56.so