Android Prerequisites

1. The following packages are required by the build scripts.

autoconf automake libtool pkg-config curl

2. These optional packages should be installed only if you want to build corresponding external libraries.

cmake gcc gperf texinfo yasm nasm bison autogen patch

• cmake v3.9.x or later required by libwebp and x265
• gcc required by freetype and fribidi
• gperf required by fontconfig
• texinfo required by gmp on some platforms
• yasm required for libvpx and x265 on some platforms
• nasm required for x264 on x86 and x86-64 platforms
• bison required for gnutls
• autogen required for libsndfile
• patch required for x265 v2.9

3. Android builds require these additional packages.

• Android SDK 5.0 Lollipop (API Level 21) or later
• Android NDK r17c or later with LLDB and CMake as shown in Android NDK Guide
• gradle 4.4 or later