72 lines
2.2 KiB
Bash
Executable File
72 lines
2.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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script_dir="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
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repo_root="$(cd -- "$script_dir/../.." && pwd)"
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destination="${1:-$repo_root/build/ffmpeg-sdk}"
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manifest="$script_dir/dependency-linux-x64.json"
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manifest_value() {
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python3 -c 'import json, sys; print(json.load(open(sys.argv[1], encoding="utf-8"))[sys.argv[2]])' \
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"$manifest" "$1"
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}
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for command in python3 curl sha256sum tar awk wc; do
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command -v "$command" >/dev/null 2>&1 || {
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echo "required command was not found: $command" >&2
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exit 1
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}
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done
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archive="$(manifest_value archive)"
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url="$(manifest_value url)"
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expected_hash="$(manifest_value sha256)"
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expected_size="$(manifest_value size)"
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expected_version="$(manifest_value ffmpeg_version)"
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archive_root="${archive%.tar.xz}"
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download_dir="$repo_root/build/downloads"
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archive_path="$download_dir/$archive"
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sdk_root="$destination/$archive_root"
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mkdir -p -- "$download_dir" "$destination"
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if [[ ! -f "$archive_path" ]]; then
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curl --fail --location --retry 3 --remove-on-error --output "$archive_path" "$url"
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fi
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actual_size="$(wc -c < "$archive_path")"
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if [[ "$actual_size" != "$expected_size" ]]; then
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echo "FFmpeg archive size mismatch: expected $expected_size, got $actual_size" >&2
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exit 1
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fi
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actual_hash="$(sha256sum "$archive_path" | awk '{ print $1 }')"
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if [[ "$actual_hash" != "$expected_hash" ]]; then
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echo "FFmpeg archive SHA-256 mismatch: expected $expected_hash, got $actual_hash" >&2
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exit 1
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fi
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if [[ ! -d "$sdk_root" ]]; then
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tar -xJf "$archive_path" -C "$destination"
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fi
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for required in \
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"$sdk_root/include/libavformat/avformat.h" \
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"$sdk_root/lib/libavformat.so" \
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"$sdk_root/bin/ffmpeg" \
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"$sdk_root/LICENSE.txt"; do
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if [[ ! -e "$required" ]]; then
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echo "FFmpeg SDK file was not found after extraction: $required" >&2
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exit 1
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fi
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done
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reported="$(LD_LIBRARY_PATH="$sdk_root/lib${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}" \
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"$sdk_root/bin/ffmpeg" -version)"
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reported="${reported%%$'\n'*}"
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version_without_date="${expected_version%-????????}"
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if [[ "$reported" != *"$version_without_date"* ]]; then
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echo "unexpected FFmpeg build: $reported" >&2
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exit 1
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fi
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printf '%s\n' "$sdk_root"
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