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#!/usr/bin/env bash
# Copyright (C) 2026 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
# This script will build and install multiple variants of FFmpeg,
# one for each NDK version. It also sets the relevant environment
# variables for FFmpeg.
#
# Note! The environment variable names used here must match those that are
# used when building Qt in CI.
usage() {
cat <<EOF
Usage: $(basename "${BASH_SOURCE[0]}") --abi <abi> --page-size <size>
Build FFmpeg libraries for Android, once for each NDK available in the environment.
Options:
--abi <abi> Target Android ABI. One of: arm64, arm32, x86, x86_64.
--page-size <size> One of: 4kb, 16kb.
-h, --help Show this help and exit.
Example:
$(basename "${BASH_SOURCE[0]}") --abi arm64 --page-size 16kb
EOF
}
abi=""
page_size=""
while [ $# -gt 0 ]; do
case "$1" in
-h|--help)
usage
exit 0
;;
--abi|--page-size)
if [ $# -lt 2 ]; then
echo "Error: option '$1' requires a value." >&2
exit 2
fi
case "$1" in
--abi) abi="$2" ;;
--page-size) page_size="$2" ;;
esac
shift
;;
*)
echo "Error: unknown argument '$1'." >&2
echo "" >&2
usage >&2
exit 2
;;
esac
shift
done
source "${BASH_SOURCE%/*}/ffmpeg-installation-utils.sh"
is_populated_dir() {
local value="$1"
[ -n "$value" ] || return 1
[ -d "$value" ] || return 1
find "$value" -mindepth 1 -maxdepth 1 -print -quit >/dev/null 2>&1 || return 1
}
assert_envvar_is_populated_dir() {
local envvar="$1"
local value="${!envvar}"
if [ -z "$value" ] || ! is_populated_dir "$value" ; then
echo "Environment variable '$envvar' is unset, or the directory is not populated."
exit 1
fi
}
set -eux
ENVVAR_NAME_BASE="FFMPEG_DIR_ANDROID"
OUTPUT_PATH_BASE="$(ffmpeg_default_install_prefix_base)/android"
# Set up environment name and output directory based on ABI parameter.
# The envvar name will be suffixed with the specific NDK version we
# are building with.
envvar_name=""
output_path=""
case "$abi" in
x86)
output_path="${OUTPUT_PATH_BASE}/x86"
envvar_name="${ENVVAR_NAME_BASE}_X86"
;;
x86_64)
output_path="${OUTPUT_PATH_BASE}/x86_64"
envvar_name="${ENVVAR_NAME_BASE}_X86_64"
;;
arm32)
output_path="${OUTPUT_PATH_BASE}/arm32"
envvar_name="${ENVVAR_NAME_BASE}_ARM32"
;;
arm64)
output_path="${OUTPUT_PATH_BASE}/arm64"
envvar_name="${ENVVAR_NAME_BASE}_ARM64"
;;
*)
echo "Error: --abi must be one of: arm64, arm32, x86, x86_64. Got: '$abi'" >&2
exit 1
;;
esac
if [ "$page_size" != "16kb" ] && [ "$page_size" != "4kb" ]; then
echo "Error: --page-size must be '4kb' or '16kb'. Got: '$page_size'" >&2
exit 1
fi
install_ffmpeg() {
local ndk_root="$1"
local openssl_root="$2"
local output_dir="$3"
"${BASH_SOURCE%/*}/install-ffmpeg-android.sh" \
--abi "$abi" \
--ndk "$ndk_root" \
--openssl "$openssl_root" \
--page-size "$page_size" \
--output "$output_dir"
}
assert_envvar_is_populated_dir "ANDROID_NDK_ROOT_LATEST"
assert_envvar_is_populated_dir "OPENSSL_ANDROID_HOME_LATEST"
output_dir_latest="$output_path/ndk-latest"
install_ffmpeg "$ANDROID_NDK_ROOT_LATEST" "$OPENSSL_ANDROID_HOME_LATEST" "$output_dir_latest"
set_ffmpeg_dir_env_var "${envvar_name}_NDK_LATEST" "$output_dir_latest"
if [ -n "${ANDROID_NDK_ROOT_PREVIEW-}" ]; then
assert_envvar_is_populated_dir "OPENSSL_ANDROID_HOME_PREVIEW"
output_dir_preview="$output_path/ndk-preview"
install_ffmpeg "$ANDROID_NDK_ROOT_PREVIEW" "$OPENSSL_ANDROID_HOME_PREVIEW" "$output_dir_preview"
set_ffmpeg_dir_env_var "${envvar_name}_NDK_PREVIEW" "$output_dir_preview"
fi
if [ -n "${ANDROID_NDK_ROOT_NIGHTLY1-}" ]; then
assert_envvar_is_populated_dir "OPENSSL_ANDROID_HOME_NIGHTLY1"
output_dir_nightly1="$output_path/ndk-nightly1"
install_ffmpeg "$ANDROID_NDK_ROOT_NIGHTLY1" "$OPENSSL_ANDROID_HOME_NIGHTLY1" "$output_dir_nightly1"
set_ffmpeg_dir_env_var "${envvar_name}_NDK_NIGHTLY1" "$output_dir_nightly1"
fi
if [ -n "${ANDROID_NDK_ROOT_NIGHTLY2-}" ]; then
assert_envvar_is_populated_dir "OPENSSL_ANDROID_HOME_NIGHTLY2"
output_dir_nightly2="$output_path/ndk-nightly2"
install_ffmpeg "$ANDROID_NDK_ROOT_NIGHTLY2" "$OPENSSL_ANDROID_HOME_NIGHTLY2" "$output_dir_nightly2"
set_ffmpeg_dir_env_var "${envvar_name}_NDK_NIGHTLY2" "$output_dir_nightly2"
fi