devops(ffmpeg): compile zlib dependency that is needed for ffmpeg (#3940)

This patch adds zlib compilation that is required for ffmpeg.

browser_patches/ffmpeg/BUILD_NUMBER

@@ -1 +1 @@
-1002
+1003

browser_patches/ffmpeg/CONFIG.sh

@@ -12,6 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+ZLIB_VERSION="v1.2.11"
+ZLIB_CONFIG="--static"
+
 LIBVPX_VERSION="v1.9.0"
 LIBVPX_CONFIG="--enable-static \
                --disable-shared \

browser_patches/ffmpeg/build-linux.sh

@@ -36,6 +36,15 @@ elif ! [[ -d $(dirname "${output_path}") ]]; then
   die "ERROR: folder for output path ${output_path} does not exist."
 fi
 
+function build_zlib {
+  cd "${HOME}"
+  git clone https://github.com/madler/zlib
+  cd zlib
+  git checkout "${ZLIB_VERSION}"
+  ./configure --prefix="${PREFIX}" ${ZLIB_CONFIG}
+  make && make install
+}
+
 function build_libvpx {
   cd "${HOME}"
   git clone https://chromium.googlesource.com/webm/libvpx
@@ -74,6 +83,7 @@ source ./CONFIG.sh
 apt-get update
 apt-get install -y git make yasm pkg-config
 
+build_zlib
 build_libvpx
 build_ffmpeg
 

browser_patches/ffmpeg/build-mac.sh

@@ -31,6 +31,15 @@ BUILDDIR="${PWD}/build"
 PREFIX="${BUILDDIR}/osx_prefix"
 OUTPUT_PATH="${PWD}/output/ffmpeg-mac"
 
+function build_zlib {
+  cd "${BUILDDIR}"
+  git clone https://github.com/madler/zlib
+  cd zlib
+  git checkout "${ZLIB_VERSION}"
+  ./configure --prefix="${PREFIX}" ${ZLIB_CONFIG}
+  make && make install
+}
+
 function build_libvpx {
   cd "${BUILDDIR}"
   git clone https://chromium.googlesource.com/webm/libvpx
@@ -79,6 +88,7 @@ set -x
 rm -rf "${BUILDDIR}"
 mkdir -p "${BUILDDIR}"
 
+build_zlib
 build_libvpx
 build_ffmpeg
 

browser_patches/ffmpeg/build.sh

@@ -21,7 +21,7 @@ trap "cd $(pwd -P)" EXIT
 cd "$(dirname $0)"
 
 if [[ ("$1" == "-h") || ("$1" == "--help") ]]; then
-  echo "usage: $(basename $0) [--mac|--cross-compile-win32|--cross-compile-win64]"
+  echo "usage: $(basename $0) [--mac|--linux|--cross-compile-win32|--cross-compile-win64]"
   echo
   echo "Build ffmpeg for the given platform"
   echo

browser_patches/ffmpeg/crosscompile-from-linux-to-win.sh

@@ -52,6 +52,23 @@ elif ! [[ -d $(dirname "${output_path}") ]]; then
   die "ERROR: folder for output path ${output_path} does not exist."
 fi
 
+function build_zlib {
+  cd "${HOME}"
+  git clone https://github.com/madler/zlib
+  cd zlib
+  git checkout "${ZLIB_VERSION}"
+  ./configure --prefix="${PREFIX}" ${ZLIB_CONFIG}
+  make \
+    CC="${toolchain_prefix}gcc" \
+    CXX="${toolchain_prefix}g++" \
+    AR="${toolchain_prefix}ar" \
+    PREFIX="$PREFIX" \
+    RANLIB="${toolchain_prefix}ranlib" \
+    LD="${toolchain_prefix}ld" \
+    STRIP="${toolchain_prefix}strip"
+  make install
+}
+
 function build_libvpx {
   cd "${HOME}"
   git clone https://chromium.googlesource.com/webm/libvpx
@@ -109,6 +126,7 @@ source ./CONFIG.sh
 apt-get update
 apt-get install -y mingw-w64 git make yasm pkg-config
 
+build_zlib
 build_libvpx
 build_ffmpeg