Add stand alone job to build FFmpeg binaries (#3455)

Summary: Pull Request resolved: https://github.com/pytorch/audio/pull/3455

Differential Revision: D47242316

Pulled By: mthrok

fbshipit-source-id: 0eb4bdb0a45fccfe9ff97eaed79db63cd7bfc7d8

.github/workflows/ffmpeg.yml

+# This job is not directly related to regular CI pipeline.
+# It is intended to create FFmpeg binaries that we upload on S3,
+# which then will be used during all the build process in CI or local.
+#
+# This job does not include uploading part.
+# Upload needs to be done manually, and it should be done only once
+# par new major release of FFmepg.
+name: FFmpeg Binaries
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * 0'  # on sunday
+
+jobs:
+  Linux-LGPL:
+    strategy:
+      fail-fast: false
+      matrix:
+        ffmpeg_version: ["4.1.8", "5.0.3", "6.0"]
+    uses: pytorch/test-infra/.github/workflows/linux_job.yml@main
+    with:
+      job-name: Build LGPL FFmpeg for Linux
+      upload-artifact: ffmpeg-linux-lgpl
+      repository: pytorch/audio
+      script: |
+        export FFMPEG_VERSION="${{ matrix.ffmpeg_version }}"
+        export FFMPEG_ROOT="${PWD}/third_party/ffmpeg"
+        ./packaging/ffmpeg/build.sh
+
+        cd "${FFMPEG_ROOT}/.."
+        tar -cf ffmpeg.tar.gz ffmpeg/include ffmpeg/lib
+
+        artifact_dir="${RUNNER_ARTIFACT_DIR}/$(date +%Y-%m-%d)/linux/"
+        mkdir -p "${artifact_dir}"
+        mv ffmpeg.tar.gz "${artifact_dir}/${FFMPEG_VERSION}.tar.gz"
+
+  macOS-LGPL:
+    strategy:
+      fail-fast: false
+      matrix:
+        ffmpeg_version: ["4.1.8", "5.0.3", "6.0"]
+        runner: ["macos-m1-12", "macos-12"]
+    uses: pytorch/test-infra/.github/workflows/macos_job.yml@main
+    with:
+      job-name: Build LGPL FFmpeg for macOS ("${{ matrix.runner }}")
+      upload-artifact: ffmpeg-macos-lgpl
+      repository: pytorch/audio
+      runner: "${{ matrix.runner }}"
+      script: |
+        export FFMPEG_VERSION="${{ matrix.ffmpeg_version }}"
+        export FFMPEG_ROOT="${PWD}/third_party/ffmpeg"
+        ./packaging/ffmpeg/build.sh
+
+        cd "${FFMPEG_ROOT}/.."
+        tar -cf ffmpeg.tar.gz ffmpeg/include ffmpeg/lib
+
+        artifact_dir="${RUNNER_ARTIFACT_DIR}/$(date +%Y-%m-%d)/macos_$(uname -m)"
+        mkdir -p "${artifact_dir}"
+        mv ffmpeg.tar.gz "${artifact_dir}/${FFMPEG_VERSION}.tar.gz"
+
+  Windows-LGPL:
+    strategy:
+      fail-fast: false
+      matrix:
+        ffmpeg_version: ["4.1.8", "5.0.3", "6.0"]
+    uses: pytorch/test-infra/.github/workflows/windows_job.yml@main
+    with:
+      job-name: Build LGPL FFmpeg for Windows
+      upload-artifact: ffmpeg-windows-lgpl
+      repository: pytorch/audio
+      script: |
+        export FFMPEG_VERSION="${{ matrix.ffmpeg_version }}"
+        export FFMPEG_ROOT="${PWD}/third_party/ffmpeg"
+        ./packaging/ffmpeg/build.bat
+
+        cd "${FFMPEG_ROOT}/.."
+        tar -cf ffmpeg.tar.gz ffmpeg/include ffmpeg/bin
+
+        artifact_dir="${RUNNER_ARTIFACT_DIR}/$(date +%Y-%m-%d)/windows"
+        mkdir -p "${artifact_dir}"
+        mv ffmpeg.tar.gz "${artifact_dir}/${FFMPEG_VERSION}.tar.gz"

packaging/ffmpeg/build.sh

@@ -21,6 +21,8 @@ if [[ "$OSTYPE" == "msys" ]]; then
    args="--toolchain=msvc"
 fi
 
+archive="https://github.com/FFmpeg/FFmpeg/archive/refs/tags/n${FFMPEG_VERSION:-4.1.8}.tar.gz"
+
 build_dir=$(mktemp -d -t ffmpeg-build.XXXXXXXXXX)
 cleanup() {
     rm -rf "${build_dir}"
@@ -32,7 +34,7 @@ cd "${build_dir}"
 # NOTE:
 # When changing the version of FFmpeg, update the README so that the link to the source points
 # the same version.
-curl -LsS -o ffmpeg.tar.gz https://github.com/FFmpeg/FFmpeg/archive/refs/tags/n4.1.8.tar.gz
+curl -LsS -o ffmpeg.tar.gz "${archive}"
 tar -xf ffmpeg.tar.gz --strip-components 1
 ./configure \
     --prefix="${prefix}" \
@@ -72,11 +74,29 @@ ls ${prefix}/*
 # macOS: Fix rpath so that the libraries are searched dynamically in user environment.
 # In Linux, this is handled by `--enable-rpath` flag.
 if [[ "$(uname)" == Darwin ]]; then
-    avcodec=libavcodec.58
-    avdevice=libavdevice.58
-    avfilter=libavfilter.7
-    avformat=libavformat.58
-    avutil=libavutil.56
+    major_ver=${FFMPEG_VERSION:0:1}
+    if [[ ${major_ver} == 4 ]]; then
+        avutil=libavutil.56
+        avcodec=libavcodec.58
+        avformat=libavformat.58
+        avdevice=libavdevice.58
+        avfilter=libavfilter.7
+    elif [[ ${major_ver} == 5 ]]; then
+        avutil=libavutil.57
+        avcodec=libavcodec.59
+        avformat=libavformat.59
+        avdevice=libavdevice.59
+        avfilter=libavfilter.8
+    elif [[ ${major_ver} == 6 ]]; then
+        avutil=libavutil.58
+        avcodec=libavcodec.60
+        avformat=libavformat.60
+        avdevice=libavdevice.60
+        avfilter=libavfilter.9
+    else
+        printf "Error: unexpected FFmpeg major version: %s\n"  ${major_ver}
+        exit 1;
+    fi
 
     otool="/usr/bin/otool"
     # NOTE: miniconda has a version of otool and install_name_tool installed and we want