编译vlc(一)

编译vlc源

官方文档:https://wiki.videolan.org/AndroidCompile/

我们按照官方文档首先需要下载相应的软件:

sudo apt-get install automake ant autopoint cmake build-essential libtool-bin  patch pkg-config protobuf-compiler ragel subversion unzip git openjdk-8-jre openjdk-8-jdk flex python wget

请不要直接复制官网的软件下载，会出现无法下载的问题，因为\和空格无法删除

然后我们需要jdk1.8，首先我们可以先看下Java的版本：java -version

openjdk version "11.0.6" 2020-01-14

OpenJDK Runtime Environment (build 11.0.6+10-post-Ubuntu-1ubuntu118.04.1)

OpenJDK 64-Bit Server VM (build 11.0.6+10-post-Ubuntu-1ubuntu118.04.1, mixed mode)

有一些有自带的jdk，如上，这时候就需要重新下载1.8，为什么？

如果不下载1.8并且配置的话会报下面的这个错误

compile:

    [javac] /root/myworkdir/vlc-android/vlc/contrib/contrib-android-aarch64-linux-android/bluray/src/libbluray/bdj/build.xml:26: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds

    [javac] Compiling 33 source files to /root/myworkdir/vlc-android/vlc/contrib/contrib-android-aarch64-linux-android/bluray/src/libbluray/bdj/build

    [javac] warning: [options] bootstrap class path not set in conjunction with -source 5

    [javac] error: Source option 5 is no longer supported. Use 6 or later.

    [javac] error: Target option 1.5 is no longer supported. Use 1.6 or later.

BUILD FAILED

/root/myworkdir/vlc-android/vlc/contrib/contrib-android-aarch64-linux-android/bluray/src/libbluray/bdj/build.xml:26: Compile failed; see the compiler error output for details.

Total time: 1 second

Makefile:2618: recipe for target 'all-local' failed

make[1]: *** [all-local] Error 1

make[1]: Leaving directory '/root/myworkdir/vlc-android/vlc/contrib/contrib-android-aarch64-linux-android/bluray'

../../contrib/src/bluray/rules.mak:56: recipe for target '.bluray' failed

make: *** [.bluray] Error 2

这个错误就是需要一个1.8的jdk，这时候我们把Linux版本的jdk1.8下载好之后(这里不贴链接)，需要配置Java环境

sudo vim /etc/profile

在最后一行加上

export JAVA_HOME=/root/myworkdir/jdk1.8.0_11//这里写上自己的jdk路径

export JAVA_BIN=$JAVA_HOME/bin

export JAVA_LIB=$JAVA_HOME/lib

export CLASSPATH=.:$JAVA_LIB/tools.jar:$JAVA_LIB/dt.jar

export PATH=$JAVA_BIN:$PATH

开始编译

./buildsystem/compile.sh -a arm64-v8(这个地方填写的是cpu版本)

如果你不知道cpu版本怎么写，可以

./buildsystem/compile.sh --help

进行查看

Use -a to set the ARCH:

  ARM:    (armeabi-v7a|arm)

  ARM64:  (arm64-v8a|arm64)

  X86:    x86, x86_64

Use --release to build in release mode

Use --signrelease to build in release mode and sign apk, see vlc-android/build.gradle

Use -s to set your keystore file and -p for the password

Use -c to get a ChromeOS build

Use -l to build only LibVLC

Use -b to bypass libvlc source checks (vlc custom sources)

现在就正式开始编译