android基于ffmpeg的简单视频播发器 编译ffmpeg

ffmpeg编译的文章网上很多，很简单，我是windows10系统

首先安装mingw:https://sourceforge.net/projects/mingw/files

在安装界面选择basic setup,把右边的都勾选，然后点击installation选择apply change进行下载安装

配置环境变量，在Path内添加

C:\MinGW\bin

C:\MinGW\msys\1.0\bin

完成后，下载yasm:http://yasm.tortall.net/Download.html

将下载的yasm改名为yasm.exe,放到C:\MinGW\msys\1.0\bin下

将ffmpeg目录下的configure文件的代码改成

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

忘了要改哪几个参数，就去网上找来对照一下

然后是创建.sh文件了，由于不知道windows怎么创建.sh文件，就直接把ffmpeg的version.sh复制一份改成arm.sh文件

5种cpu架构，我也不知道我配置的对不对，配置信息还是看不懂

arm64-v8a架构文件

#!/bin/sh

export TMPDIR=C:/f/ffmpegtemp

export NDK=C:/sdk/ndk-bundle

export SYSROOT=$NDK/platforms/android-21/arch-arm64/

export TOOLCHAIN=$NDK/toolchains/aarch64-linux-android-4.9/prebuilt/windows-x86_64

export CPU=arm64-v8a

export PREFIX=C:/f/output/$CPU

ADDI_CFLAGS=""

function build_one

{

./configure \
--prefix=$PREFIX \
--enable-shared \
--disable-static \
--disable-doc \
--disable-ffserver \
--enable-cross-compile \
--cross-prefix=$TOOLCHAIN/bin/aarch64-linux-android- \
--target-os=linux \
--arch=aarch64 \
--sysroot=$SYSROOT \
--extra-cflags="-Os -fpic $ADDI_CFLAGS" \
--extra-ldflags="$ADDI_LDFLAGS" \
$ADDITIONAL_CONFIGURE_FLAG

make clean

make

make install

}

build_one

armeabi架构

#!/bin/sh

export TMPDIR=C:/f/ffmpegtemp

export NDK=C:/sdk/ndk-bundle

export SYSROOT=$NDK/platforms/android-15/arch-arm/

export TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64

export CPU=arm

export PREFIX=C:/f/output/$CPU

ADDI_CFLAGS="-marm"

function build_one

{

./configure \
--prefix=$PREFIX \
--enable-shared \
--disable-static \
--disable-doc \
--disable-ffserver \
--enable-cross-compile \
--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
--target-os=linux \
--arch=$CPU \
--sysroot=$SYSROOT \
--extra-cflags="-Os -fpic $ADDI_CFLAGS" \
--extra-ldflags="$ADDI_LDFLAGS" \
$ADDITIONAL_CONFIGURE_FLAG

make clean

make

make install

}

build_one

armeabi-v7a架构

#!/bin/sh

export TMPDIR=C:/f/ffmpegtemp

export NDK=C:/sdk/ndk-bundle

export SYSROOT=$NDK/platforms/android-14/arch-arm/

export TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64

export CPU=armv7-a

export PREFIX=C:/f/output/$CPU

ADDI_CFLAGS="-marm"

function build_one

{

./configure \

--prefix=$PREFIX \
--enable-shared \
--disable-static \
--disable-doc \
--disable-ffserver \
--enable-cross-compile \
--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
--target-os=linux \
--arch=$CPU \
--sysroot=$SYSROOT \
--extra-cflags="-Os -fpic $ADDI_CFLAGS" \
--extra-ldflags="$ADDI_LDFLAGS" \
$ADDITIONAL_CONFIGURE_FLAG

make clean

make

make install

}

build_one

x86架构

#!/bin/sh

export TMPDIR=C:/f/ffmpegtemp

export NDK=C:/sdk/ndk-bundle

export SYSROOT=$NDK/platforms/android-14/arch-x86/

export TOOLCHAIN=$NDK/toolchains/x86-4.9/prebuilt/windows-x86_64

export CPU=x86

export PREFIX=C:/f/output/$CPU

ADDI_CFLAGS="-m32"

function build_one

{

./configure \
--prefix=$PREFIX \
--enable-shared \
--disable-static \
--disable-doc \
--disable-ffserver \
--enable-cross-compile \
--cross-prefix=$TOOLCHAIN/bin/i686-linux-android- \
--target-os=linux \
--arch=$CPU \
--sysroot=$SYSROOT \
--extra-cflags="-Os -fpic $ADDI_CFLAGS" \
--extra-ldflags="$ADDI_LDFLAGS" \
$ADDITIONAL_CONFIGURE_FLAG

make clean

make

make install

}

build_one

x86_64架构

#!/bin/sh

export TMPDIR=C:/f/ffmpegtemp

export NDK=C:/sdk/ndk-bundle

export SYSROOT=$NDK/platforms/android-21/arch-x86_64/

export TOOLCHAIN=$NDK/toolchains/x86_64-4.9/prebuilt/windows-x86_64

export CPU=x86_64

export PREFIX=C:/f/output/$CPU

ADDI_CFLAGS="-m64"

function build_one

{

./configure \
--prefix=$PREFIX \
--enable-shared \
--disable-static \
--disable-doc \
--disable-ffserver \
--enable-cross-compile \
--cross-prefix=$TOOLCHAIN/bin/x86_64-linux-android- \
--target-os=linux \
--arch=$CPU \
--sysroot=$SYSROOT \
--extra-cflags="-Os -fpic $ADDI_CFLAGS" \
--extra-ldflags="$ADDI_LDFLAGS" \
$ADDITIONAL_CONFIGURE_FLAG

make clean

make

make install

}

build_one

NDK是我的ndk路径

SYSROOT和TOOLCHAIN都是根据cpu架构需要选择匹配的

TMPDIR临时缓存路径

PREFIX是so文件生成路径

打开mingw

$ cd C:/ffmpeg/ffmpeg-3.3.2   进入到ffmpeg目录

$ ./xx.sh   开始编译