Gradle Android Build for Different Processor Architectures

Which Android ABIs (CPU Architectures) do i need to serve?

For someone who might be checking this out in the future,
I don't think the x_86 or x86_64 devices need to be supported anymore in 2021. A simple search on the play console (device catalog) yields the following results:

Out of 13,333 devices supported by Android at the moment

13 devices support x86_64 (Mainly intel)

88 devices support x86 (Intel, Asus Zenfones)

5,198 devices support arm64-v8a

8,097 devices support armeabi-v7a

So by supporting just the arm ABI's you'd pretty much be covering 99.7 % of android devices.

Source: Google Play Console Device Catalog (Release -> Device Catalog -> Filter by ABI's)

Generate APK for different architectures - FFmpegMediaMetadataRetriever

You can generate different APK's using product flavors which specify the desired target ABI. You can then specify which FMMR gradle dependency or standalone AAR file to use depending on each product flavor. See this build.gradle file for reference:

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.wseemann.example"
        minSdkVersion 15
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    flavorDimensions "version"
    productFlavors {
        fat {
            ndk {
                abiFilters "armeabi", "armeabi-v7a", "x86", "mips", "x86_64", "arm64-v8a"
            }
        }

        armeabi {
            ndk {
                abiFilter "armeabi"
            }
        }

        armeabi_v7a {
            ndk {
                abiFilter "armeabi-v7a"
            }
        }

        x86 {
            ndk {
                abiFilter "x86"
            }
        }

        mips {
            ndk {
                abiFilter "mips"
            }
        }

        x86_64 {
            ndk {
                abiFilter "x86_64"
            }
        }

        arm64_v8a {
            ndk {
                abiFilter "arm64-v8a"
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:28.0.0-rc01'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

    // Product flavor, ABI specific dependencies
    fatImplementation 'com.github.wseemann:FFmpegMediaMetadataRetriever:1.0.14'
    armeabiImplementation 'com.github.wseemann:FFmpegMediaMetadataRetriever-armeabi:1.0.14'
    armeabi_v7aImplementation'com.github.wseemann:FFmpegMediaMetadataRetriever-armeabi-v7a:1.0.14'
    x86Implementation 'com.github.wseemann:FFmpegMediaMetadataRetriever-x86:1.0.14'
    mipsImplementation 'com.github.wseemann:FFmpegMediaMetadataRetriever-mips:1.0.14'
    x86_64Implementation 'com.github.wseemann:FFmpegMediaMetadataRetriever-x86_64:1.0.14'
    arm64_v8aImplementation 'com.github.wseemann:FFmpegMediaMetadataRetriever-arm64-v8a:1.0.14'
}

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