classdojo/ffmpeg-android-kotlin

FFmpeg for Android compiled with LGPL license, openh264 & aac encoding only (Supports Android 4.1+), contains Kotlin wrapper module

Android FFmpeg-openh264 converter

• FFmpeg for Android compiled (encoders: aac & openh264)
• Supports Android N
• kotlin wrapper for FFmpeg (task queue)

Supported Architecture

• armeabi-v7a
• x86 (with has text relocations kludge - disabled asm)

Supported Host Environments

• MacOS
• Linux
• Windows10 Linux Subsystem (NOTE: you have to set ANDROID_NDK_ROOT to LINUX version of Android SDK / NDK / build tools)

FFmpeg, openh2664 build instructions

• Set environment variable default: ~/Android/Sdk/ndk-bundle
  or set it manually: export ANDROID_NDK_ROOT={Android NDK Base Path}
• Run following commands to compile ffmpeg
  1. sudo apt-get --quiet --yes install build-essential git autoconf libtool pkg-config gperf gettext yasm python-lxml nasm
  2. ./update_modules.sh - update submodules and libraries
  3. ./build_android.sh - build ffmpeg & libopenh264
• Find the executable binary in build/{arch}/bin directory.

Docker build instructions

The binaries can be built from a docker container using the included Dockerfile. This sets the version of the NDK to an older, known-working version.

./docker_build.sh will build the ffmpeg binaries (including openh264)

Kotlin wrapper module instructions

1. import ffmpegandroid module
2. put your ffmpeg & libopenh264.so into kotlin-wrapper/ffmpegandroid/ffmpeg
3. replace

  compile project(path: ':ffmpegandroid')

with

  debugCompile project(path: ':ffmpegandroid', configuration: "debug") // force compile debug module
  releaseCompile project(path: ':ffmpegandroid', configuration: "release")

in your app build.gradle file (dependencies section)

4. usage example

Licenses

• FFmpeg: LGPL 3.0
• openh264: BSD
• kotlin wrapper: MIT
• build scripts: MIT

Info

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