build.gradle

apply plugin: "java-library"

if (JavaVersion.current().isJava9Compatible()) {
    compileJava {
        options.release = 7
    }
}
targetCompatibility = 1.7
sourceCompatibility = 1.7

java {
    withSourcesJar()
    withJavadocJar()
}

sourceSets {
    main {
        java {
            srcDirs = ["src/"]
        }
    }
}

configurations {
    custom
    compile.extendsFrom custom
}

dependencies {
    api project(":gdx-video-core")
}

apply plugin: "com.badlogicgames.gdx.gdx-jnigen"

tasks.register('cleanFFmpeg')
clean.configure {
    dependsOn 'cleanFFmpeg'
}

String checkCrossPrefix(String crossToolchain) {
    def tc = crossToolchain
    if (tc == null || System.getProperty("os.name").startsWith("Win")) return ""
    def result = project.exec {
        ignoreExitValue = true
        commandLine "bash", "-l", "-c",
            "(command -v $tc-g++ && command -v $tc-ar && command -v $tc-ld)>/dev/null"
    }
    if(result.getExitValue() == 0) {
        return "$tc-"
    }
    return ""
}

void registerBuild(String buildName, String crossToolchain, String... extraArgs) {
    String buildDir = "FFmpeg/build-${buildName.toLowerCase()}"
    tasks.register("cleanFFmpeg$buildName", Delete) {
        delete buildDir
    }
    cleanFFmpeg.configure {
        dependsOn "cleanFFmpeg$buildName"
    }
    tasks.register("buildFFmpeg$buildName") {
        doFirst {
            mkdir buildDir
            String[] crossArgs = []
            def crossPrefix = checkCrossPrefix(crossToolchain)
            if(!crossPrefix.isEmpty()) {
                crossArgs = ["--enable-cross-compile", "--cross-prefix=$crossPrefix"]
            }
            project.exec {
                workingDir buildDir
                executable '../configure'
                args '--enable-pic', '--disable-symver', '--disable-doc', '--disable-shared', '--enable-static'
                args crossArgs
                args '--disable-everything'
                args '--enable-protocol=file', '--enable-filter=aresample', '--enable-filter=deshake'
                args '--enable-demuxer=ogg', '--enable-demuxer=matroska'
                args '--enable-decoder=vorbis', '--enable-decoder=opus'
                args '--enable-decoder=vp8', '--enable-decoder=vp9', '--enable-decoder=theora', '--enable-decoder=av1'
                // Uncomment the following line for MP4 video support:
                // args '--enable-demuxer=mov', '--enable-decoder=aac', '--enable-decoder=h264', '--enable-decoder=hevc'
                args extraArgs
            }
            project.exec {
                workingDir buildDir
                commandLine 'make', '-j16'
            }
        }
        outputs.upToDateWhen { file("$buildDir/libavformat/libavformat.a").exists() }
    }
}

registerBuild 'Windows32', 'i686-w64-mingw32', '--arch=x86', '--target-os=mingw32'
registerBuild 'Windows64', 'x86_64-w64-mingw32', '--arch=x86_64', '--target-os=mingw32'

registerBuild 'Linux64', 'x86_64-linux-gnu', '--arch=x86_64', '--target-os=linux', '--disable-cuda', '--disable-cuvid'

registerBuild 'LinuxARM32', 'arm-linux-gnueabihf', '--arch=arm', '--target-os=linux'
registerBuild 'LinuxARM64', 'aarch64-linux-gnu', '--arch=aarch64', '--target-os=linux'

registerBuild 'Macos64', null, '--enable-cross-compile', '--arch=x86_64', '--target-os=darwin', '--cc=clang', '--cxx=clang++', '--dep-cc=clang',
        '--extra-cflags=-mmacosx-version-min=10.11 -arch x86_64', '--extra-cxxflags=-mmacosx-version-min=10.11 -arch x86_64', '--extra-ldflags=-mmacosx-version-min=10.11 -arch x86_64'
registerBuild 'MacosARM64', null, '--enable-cross-compile', '--arch=arm64', '--target-os=darwin', '--cc=clang', '--cxx=clang++', '--dep-cc=clang',
        '--extra-cflags=-mmacosx-version-min=10.11 -arch arm64', '--extra-cxxflags=-mmacosx-version-min=10.11 -arch arm64', '--extra-ldflags=-mmacosx-version-min=10.11 -arch arm64'

jnigen {
    sharedLibName = "gdx-video-desktop"
    all {
        headerDirs = ["../FFmpeg"]
        cFlags += " -fvisibility=hidden "
        cppFlags += " -fvisibility=hidden "
        //Using `-lavcodec -lavformat` order on linux drops filesize by half but mingw wont compile???
        libraries += " -lavformat -lavcodec -lavutil -lswscale -lswresample -lpthread "
    }
    def genLibs = { String buildName ->
        String libraries = ''
        String absPath = file("FFmpeg/build-$buildName").absolutePath
        libraries += " -L$absPath/libavcodec"
        libraries += " -L$absPath/libavformat"
        libraries += " -L$absPath/libavutil"
        libraries += " -L$absPath/libswscale"
        libraries += " -L$absPath/libswresample"
        return libraries
    }

    add(Windows, x32) {
        headerDirs += "../FFmpeg/build-windows32/"
        cppFlags += " -DWIN32 "
        libraries += genLibs("windows32") + " -lbcrypt -lws2_32"
    }
    add(Windows, x64) {
        headerDirs += "../FFmpeg/build-windows64/"
        cppFlags += " -DWIN32 "
        libraries += genLibs("windows64") + " -lbcrypt -lws2_32"
    }
    add(Linux, x64) {
        headerDirs += "../FFmpeg/build-linux64/"
        libraries += genLibs("linux64")
        compilerPrefix = checkCrossPrefix('x86_64-linux-gnu')
        linkerFlags += " -Wl,-Bsymbolic "
    }
    add(Linux, x32, ARM) {
        headerDirs += "../FFmpeg/build-linuxarm32/"
        libraries += genLibs("linuxarm32")
        linkerFlags += " -Wl,-Bsymbolic "
    }
    add(Linux, x64, ARM) {
        headerDirs += "../FFmpeg/build-linuxarm64/"
        libraries += genLibs("linuxarm64")
        linkerFlags += " -Wl,-Bsymbolic "
    }
    add(MacOsX, x64) {
        headerDirs += "../FFmpeg/build-macos64/"
        libraries += genLibs("macos64") + " -liconv -lbz2 -lz -framework CoreFoundation -framework CoreVideo"
        cFlags += " -mmacosx-version-min=10.11"
        cppFlags += " -mmacosx-version-min=10.11"
        linkerFlags += " -mmacosx-version-min=10.11"
    }
    add(MacOsX, x64, ARM) {
        headerDirs += "../FFmpeg/build-macosarm64/"
        libraries += genLibs("macosarm64") + " -liconv -lbz2 -lz -framework CoreFoundation -framework CoreVideo"
        cFlags += " -mmacosx-version-min=10.11"
        cppFlags += " -mmacosx-version-min=10.11"
        linkerFlags += " -mmacosx-version-min=10.11"
    }
}

tasks.register('buildFFmpegWindowsAll') {
    dependsOn buildFFmpegWindows32, buildFFmpegWindows64
}

tasks.register('buildFFmpegLinuxAll') {
    dependsOn buildFFmpegLinux64, buildFFmpegLinuxARM32, buildFFmpegLinuxARM64
}

tasks.register('buildFFmpegMacosAll') {
    dependsOn buildFFmpegMacos64, buildFFmpegMacosARM64
}

tasks.register('jnigenBuildWindowsAll') {
    dependsOn jnigenBuildWindows, jnigenBuildWindows64
}

tasks.register('jnigenBuildLinuxAll') {
    dependsOn jnigenBuildLinux64, jnigenBuildLinuxARM, jnigenBuildLinuxARM64
}

tasks.register('jnigenBuildMacosAll') {
    dependsOn jnigenBuildMacOsX64, jnigenBuildMacOsXARM64
}

jar {
    from fileTree("libs").files
}

eclipse.project {
    name = projectGroup + "-desktop"
}