# aom
AOM_VERSION := 3.15.2
AOM_URL := https://storage.googleapis.com/aom-releases/libaom-$(AOM_VERSION).tar.gz

PKGS += aom
ifeq ($(call need_pkg,"aom"),)
PKGS_FOUND += aom
endif

$(TARBALLS)/libaom-$(AOM_VERSION).tar.gz:
 $(call download_pkg,$(AOM_URL),aom)

.sum-aom: libaom-$(AOM_VERSION).tar.gz

aom: libaom-$(AOM_VERSION).tar.gz .sum-aom
 $(UNPACK)
 $(APPLY) $(SRC)/aom/0001-Do-not-force-_WIN32_WINNT.patch
 $(MOVE)

DEPS_aom =
ifdef HAVE_WIN32
DEPS_aom += winpthreads $(DEPS_winpthreads)
endif

AOM_CONF := \
 -DCONFIG_RUNTIME_CPU_DETECT=1 \
 -DCONFIG_MULTITHREAD=1 \
 -DENABLE_DOCS=OFF \
 -DENABLE_APPS=OFF \
 -DENABLE_EXAMPLES=OFF \
 -DENABLE_TOOLS=OFF \
 -DENABLE_TESTS=OFF \
 -DCONFIG_LIBYUV:STRING=0

ifndef BUILD_ENCODERS
AOM_CONF += -DCONFIG_AV1_ENCODER=0
endif

ifndef HAVE_WIN32
AOM_CONF += -DCONFIG_PIC=1
endif

ifdef HAVE_WIN32
ifneq ($(filter arm aarch64, $(ARCH)),)
# These targets don't have runtime cpu detection.
AOM_CONF += -DCONFIG_RUNTIME_CPU_DETECT=0
endif
ifeq ($(ARCH),arm)
# armv7, not just plain arm
AOM_CONF += -DAOM_ADS2GAS_REQUIRED=1 -DAOM_ADS2GAS=../build/make/ads2gas.pl -DAOM_ADS2GAS_OPTS="-thumb;-noelf" -DAOM_GAS_EXT=S
endif
endif

ifdef HAVE_DARWIN_OS
ifneq ($(filter arm aarch64, $(ARCH)),)
# These targets don't have runtime cpu detection.
AOM_CONF += -DCONFIG_RUNTIME_CPU_DETECT=0
endif
endif

# Force cpu detection
ifdef HAVE_ANDROID
ifeq ($(ARCH),aarch64)
AOM_CONF += -DAOM_TARGET_CPU=arm64
endif
endif

ifeq ($(ARCH),arm)
# armv7, not just plain arm
AOM_CONF += -DAOM_TARGET_CPU=armv7
endif

# libaom doesn't allow in-tree builds
.aom: aom toolchain.cmake
 rm -rf $(PREFIX)/include/aom
 $(CMAKECLEAN)
 $(HOSTVARS_CMAKE) $(CMAKE) $(AOM_CONF)
 +$(CMAKEBUILD)
 $(call pkg_static,"$(BUILD_DIRUNPACK)/aom.pc")
 $(CMAKEINSTALL)
 touch $@