Windows Makefile: Add FFmpeg cross-compilation

.travis.yml

@@ -1,10 +1,12 @@
 dist: trusty
-sudo: false
+sudo: required
 language: python
 cache:
   pip: true
   directories:
     - $HOME/FFmpeg
+    - $HOME/FFmpeg-win32
+    - $HOME/FFmpeg-win64
     - $HOME/.cache/r128gain-test
     - $HOME/.cache/pypy
 python:
@@ -35,24 +37,25 @@ matrix:
     - python: "3.7-dev"
     - python: "pypy3"
   fast_finish: true
-addons:
-  apt:
-    packages:
-      - yasm
-      - pandoc
-      - sox
 before_install:
+  - "if [ $TRAVIS_PYTHON_VERSION = '3.4' -a $FFMPEG_VERSION = '3.4' ]; then WINDOWS=1; fi"
+  - "if [ $WINDOWS -eq 1 ]; then curl https://dl.winehq.org/wine-builds/Release.key | sudo apt-key add - && sudo apt-add-repository https://dl.winehq.org/wine-builds/ubuntu/; fi"
+  - "sudo apt-get -q update"
   - "./ci/install-ffmpeg $FFMPEG_VERSION"
   - "if [ $TRAVIS_PYTHON_VERSION != 'pypy3' ]; then pip install -U pip; fi"
   - "if [ $TRAVIS_PYTHON_VERSION = 'pypy3' ]; then mkdir -p ~/.cache/pypy && echo $PYPY3_SHA256  ~/.cache/pypy/pypy$PYPY3_PYTHON_VERSION-$PYPY3_VERSION-linux_x86_64-portable.tar.bz2 | sha256sum --status -c || curl -f -L https://bitbucket.org/squeaky/portable-pypy/downloads/pypy$PYPY3_PYTHON_VERSION-$PYPY3_VERSION-linux_x86_64-portable.tar.bz2 > ~/.cache/pypy/pypy$PYPY3_PYTHON_VERSION-$PYPY3_VERSION-linux_x86_64-portable.tar.bz2; fi"
   - "if [ $TRAVIS_PYTHON_VERSION = 'pypy3' ]; then echo $PYPY3_SHA256  ~/.cache/pypy/pypy$PYPY3_PYTHON_VERSION-$PYPY3_VERSION-linux_x86_64-portable.tar.bz2 | sha256sum --status -c && tar -xjf ~/.cache/pypy/pypy$PYPY3_PYTHON_VERSION-$PYPY3_VERSION-linux_x86_64-portable.tar.bz2 -C ~ && deactivate && ~/pypy$PYPY3_PYTHON_VERSION-$PYPY3_VERSION-linux_x86_64-portable/bin/virtualenv-pypy ~/pypy3-venv && . ~/pypy3-venv/bin/activate; fi"
 install:
+  - "sudo apt-get -V install yasm pandoc sox"
   - "pip install -r test-requirements.txt"
   - "pip install coveralls"
+  - "if [ $WINDOWS -eq 1 ]; then sudo apt-get -V install winehq-stable p7zip-full mingw-w64; fi"
 script:
   - "export PATH=$HOME/.local/bin:$PATH"
   - "export TEST_DL_CACHE_DIR=$HOME/.cache/r128gain-test"
   - "coverage run --source=r128gain setup.py test"
+  - "if [ $WINDOWS -eq 1 ]; then pushd win && FFMPEG_VERSION=$FFMPEG_VERSION FFMPEG_CACHE_DIR=$HOME/FFmpeg-win32 WINEARCH=win32 make test && popd; fi"
+  - "if [ $WINDOWS -eq 1 ]; then pushd win && FFMPEG_VERSION=$FFMPEG_VERSION FFMPEG_CACHE_DIR=$HOME/FFmpeg-win64 WINEARCH=win64 make test && popd; fi"
 after_success:
   - "coveralls"
 before_deploy:

win/Makefile

@@ -1,4 +1,6 @@
-WINEARCH ?= win32
+WINEARCH          ?= win32
+FFMPEG_VERSION    ?= 3.4
+FFMPEG_CACHE_DIR  ?= ${HOME}/FFmpeg-${WINEARCH}
 
 # versions
 PYTHON_VERSION       := 3.4.4
@@ -46,10 +48,10 @@ print-%:
 # End targets
 #
 
-r128gain_${WINEARCH}.7z: ${OUTPUT_DIR}/r128gain.exe ${OUTPUT_DIR}/LICENSE ${OUTPUT_DIR}/readme.txt ${OUTPUT_DIR}/python${PYTHON_VERSION_SHORT}.dll
+r128gain_${WINEARCH}.7z: ${OUTPUT_DIR}/r128gain.exe ${OUTPUT_DIR}/LICENSE ${OUTPUT_DIR}/readme.txt ${OUTPUT_DIR}/python${PYTHON_VERSION_SHORT}.dll ${OUTPUT_DIR}/ffmpeg.exe
 	7z a -t7z -mx9 $@ ${OUTPUT_DIR} > /dev/null
 
-r128gain_${WINEARCH}.zip: ${OUTPUT_DIR}/r128gain.exe ${OUTPUT_DIR}/LICENSE ${OUTPUT_DIR}/readme.txt ${OUTPUT_DIR}/python${PYTHON_VERSION_SHORT}.dll
+r128gain_${WINEARCH}.zip: ${OUTPUT_DIR}/r128gain.exe ${OUTPUT_DIR}/LICENSE ${OUTPUT_DIR}/readme.txt ${OUTPUT_DIR}/python${PYTHON_VERSION_SHORT}.dll ${OUTPUT_DIR}/ffmpeg.exe
 	7z a -tzip -mx9 $@ ${OUTPUT_DIR} > /dev/null
 
 r128gain_${WINEARCH}.exe: ${7ZIP_INSTALLED} r128gain_${WINEARCH}.7z
@@ -77,6 +79,9 @@ ${OUTPUT_DIR}/readme.txt:
 	mkdir -p $(dir $@)
 	echo 'Get source, help and latest version at: https://github.com/desbma/r128gain' > $@
 
+${OUTPUT_DIR}/ffmpeg.exe:
+	mkdir -p $(dir $@)
+	./build-minimal-ffpmeg ${FFMPEG_VERSION} ${FFMPEG_CACHE_DIR} ${WINEARCH} $@
 
 #
 # Tests

win/build-minimal-ffpmeg

@@ -66,15 +66,14 @@ then
   then
     # update
     git pull
-  fi
 
     # cleanup
     make clean || true
     make distclean || true
 
     # (re)configure
     configure
-
+  fi
 else
   # clone & set branch
   git clone https://git.ffmpeg.org/ffmpeg.git $repo_dir