# FFmpeg

# FFMPEG_HASH=ec47a3b95f88fc3f820b900038ac439e4eb3fede
FFMPEG_MAJVERSION := 9.0
FFMPEG_REVISION := 0
# FFMPEG_VERSION := $(FFMPEG_MAJVERSION).$(FFMPEG_REVISION)
FFMPEG_VERSION := $(FFMPEG_MAJVERSION)
# FFMPEG_BRANCH=release/$(FFMPEG_MAJVERSION)
FFMPEG_URL := https://ffmpeg.org/releases/ffmpeg-$(FFMPEG_VERSION).tar.xz
# FFMPEG_GITURL := https://code.ffmpeg.org/FFmpeg/FFmpeg.git
FFMPEG_LAVC_MIN := 57.37.100

# FFMPEG_BASENAME := $(subst .,_,$(subst \,_,$(subst /,_,$(FFMPEG_HASH))))

# bsf=vp9_superframe is needed to mux VP9 inside webm/mkv
FFMPEGCONF = --prefix="$(PREFIX)" --enable-static --disable-shared \
 --extra-ldflags="$(LDFLAGS)" \
 --cc="$(CC)" \
 --host-cc="$(BUILDCC)" \
 --host-cflags="$(BUILDCFLAGS)" \
 --host-cppflags="$(BUILDCPPFLAGS)" \
 --pkg-config="$(PKG_CONFIG)" \
 --disable-doc \
 --disable-encoder=vorbis \
 --disable-decoder=opus \
 --enable-libgsm \
 --enable-libopenjpeg \
 --disable-debug \
 --disable-avdevice \
 --disable-devices \
 --disable-avfilter \
 --disable-filters \
 --disable-protocol=concat \
 --disable-bsfs \
 --disable-bzlib \
 --disable-libvpx \
 --enable-bsf=vp9_superframe \
 --disable-swresample \
 --disable-iconv \
 --disable-avisynth \
 --disable-nvenc \
 --disable-linux-perf
ifdef HAVE_DARWIN_OS
FFMPEGCONF += \
 --disable-securetransport
endif

ifdef ENABLE_PDB
FFMPEGCONF += --ln_s=false
endif
ifdef ENABLE_LTO
FFMPEGCONF += --enable-lto
endif

DEPS_ffmpeg = zlib $(DEPS_zlib) gsm $(DEPS_gsm) openjpeg $(DEPS_openjpeg)

# Optional dependencies
ifndef BUILD_NETWORK
FFMPEGCONF += --disable-network
endif
ifdef BUILD_ENCODERS
FFMPEGCONF += --enable-libmp3lame
DEPS_ffmpeg += lame $(DEPS_lame)
else
FFMPEGCONF += --disable-encoders --disable-muxers
endif

ifneq ($(findstring amf,$(PKGS)),)
DEPS_ffmpeg += amf $(DEPS_amf)
endif

# Small size
ifdef WITH_OPTIMIZATION
ifdef ENABLE_SMALL
FFMPEGCONF += --enable-small
endif
ifeq ($(ARCH),arm)
ifdef HAVE_ARMV7A
FFMPEGCONF += --enable-thumb
endif
endif
else
FFMPEGCONF += --optflags=-Og
endif

ifdef HAVE_CROSS_COMPILE
FFMPEGCONF += --enable-cross-compile --disable-programs
ifndef HAVE_DARWIN_OS
FFMPEGCONF += --cross-prefix=$(HOST)-
endif
endif

# ARM stuff
ifeq ($(ARCH),arm)
FFMPEGCONF += --arch=arm
ifdef HAVE_ARMV7A
FFMPEGCONF += --cpu=cortex-a8
endif
ifdef HAVE_ARMV6
FFMPEGCONF += --cpu=armv6 --disable-neon
endif
endif

# ARM64 stuff
ifeq ($(ARCH),aarch64)
FFMPEGCONF += --arch=aarch64
endif

# MIPS stuff
ifeq ($(ARCH),mipsel)
FFMPEGCONF += --arch=mips
endif
ifeq ($(ARCH),mips64el)
FFMPEGCONF += --arch=mips64
endif

# RISC-V stuff
ifneq ($(findstring $(ARCH),riscv32 riscv64),)
FFMPEGCONF += --arch=riscv
endif

# x86 stuff
ifeq ($(ARCH),i386)
ifndef HAVE_DARWIN_OS
FFMPEGCONF += --arch=x86
endif
endif

# x86_64 stuff
ifeq ($(ARCH),x86_64)
ifndef HAVE_DARWIN_OS
FFMPEGCONF += --arch=x86_64
endif
endif

# Darwin
ifdef HAVE_DARWIN_OS
ifeq ($(ARCH),arm64_32)
# TODO remove when FFMpeg supports arm64_32
FFMPEGCONF += --arch=aarch64_32
else
FFMPEGCONF += --arch=$(ARCH)
endif
FFMPEGCONF += --target-os=darwin --extra-cflags="$(CFLAGS)"
FFMPEGCONF += --disable-lzma
ifeq ($(ARCH),x86_64)
FFMPEGCONF += --cpu=core2
endif
ifdef HAVE_IOS
FFMPEGCONF += --enable-pic --extra-ldflags="$(EXTRA_CFLAGS) -isysroot $(IOS_SDK)"
ifdef HAVE_WATCHOS
FFMPEGCONF += --disable-everything
FFMPEGCONF += --enable-decoder='aac,aac_latm,aac_fixed,aadec,ac3,adpcm_*,aiff,alac,alsdec,amrnb,amrwb,ape,atrac1,atrac3,atrac3plus,atrac9,binkaudio_dct,binkaudio_rdft,bmv_audio,cook,dca,derf,dirac,dpcm,dts,dvaudio,eaac,eac3,flac,flv,g722,g723,g726,g729,gsm,metasound,mpc7,mpc8,mpegaudiodec_fixed,mp3,m4a,nellymoser,opus,pcm_*,qdmc,qdm2,ra144,ra288,ralf,rka,shorten,tta,tak,truespeech,vorbis,wavpack,wma,wmalossless,wmapro,wmavoice'
FFMPEGCONF += --enable-parser='aac,aac_latm,ac3,adpcm,amr,aac_latm,ape,cook,dca,dvaudio,flac,g723,g729,gsm,mlp,mpegaudio,opus,sipr,vorbis,xma'
FFMPEGCONF += --enable-demuxer='aac,ac3,adts,aiff,ape,asf,au,avi,caf,daud,dirac,dts,dv,ea,flac,flv,gsm,ivf,matroska,mmf,mov,mp3,mpeg,ogg,pcm,rm,sbc,sdp,shorten,voc,w64,wav,wv'
FFMPEGCONF += --enable-swresample
endif
endif
endif

# Linux
ifdef HAVE_LINUX
FFMPEGCONF += --target-os=linux --enable-pic

endif

ifdef HAVE_ANDROID
# broken text relocations
ifeq ($(ANDROID_ABI), x86)
FFMPEGCONF +=  --disable-mmx --disable-mmxext --disable-inline-asm
endif
endif

# Windows
ifdef HAVE_WIN32
ifndef HAVE_VISUALSTUDIO
DEPS_ffmpeg += mingw12-fixes $(DEPS_mingw12-fixes) d3d12 $(DEPS_d3d12)
endif
FFMPEGCONF += --target-os=mingw32
FFMPEGCONF += --enable-w32threads
# We don't currently support D3D12 in VLC
FFMPEGCONF += --disable-d3d12va
ifndef HAVE_WINSTORE
FFMPEGCONF += --enable-dxva2
else
FFMPEGCONF += --disable-dxva2 --disable-mediafoundation
endif

ifeq ($(ARCH),x86_64)
FFMPEGCONF += --arch=x86_64
else
ifeq ($(ARCH),i386) # 32bits intel
FFMPEGCONF+= --arch=x86
else
ifdef HAVE_ARMV7A
FFMPEGCONF+= --arch=arm
endif
endif
endif

else # !Windows
FFMPEGCONF += --enable-pthreads
endif

# Solaris
ifdef HAVE_SOLARIS
ifeq ($(ARCH),x86_64)
FFMPEGCONF += --cpu=core2
endif
FFMPEGCONF += --target-os=sunos --enable-pic
endif

ifdef HAVE_EMSCRIPTEN
FFMPEGCONF+= --arch=wasm32 --target-os=none --enable-pic
endif

# Build
PKGS += ffmpeg
ifeq ($(call need_pkg,"libavcodec >= $(FFMPEG_LAVC_MIN) libavformat >= 53.21.0 libswscale"),)
PKGS_FOUND += ffmpeg
endif

FFMPEGCONF += --nm="$(NM)" --ar="$(AR)" --ranlib="$(RANLIB)"

# $(TARBALLS)/ffmpeg-$(FFMPEG_BASENAME).tar.xz:
#  $(call download_git,$(FFMPEG_GITURL),$(FFMPEG_BRANCH),$(FFMPEG_HASH))

# .sum-ffmpeg: $(TARBALLS)/ffmpeg-$(FFMPEG_BASENAME).tar.xz
#  $(call check_githash,$(FFMPEG_HASH))
#  touch $@

$(TARBALLS)/ffmpeg-$(FFMPEG_VERSION).tar.xz:
 $(call download_pkg,$(FFMPEG_URL),ffmpeg)

.sum-ffmpeg: ffmpeg-$(FFMPEG_VERSION).tar.xz

ffmpeg: ffmpeg-$(FFMPEG_VERSION).tar.xz .sum-ffmpeg
 $(UNPACK)
 $(APPLY) $(SRC)/ffmpeg/dxva_vc1_crash.patch
 $(APPLY) $(SRC)/ffmpeg/h264_early_SAR.patch
 $(APPLY) $(SRC)/ffmpeg/0001-avcodec-dxva2-add-support-for-HEVC-RExt-DXVA-profile.patch
 $(APPLY) $(SRC)/ffmpeg/0001-avcodec-mpeg12dec-don-t-call-hw-end_frame-when-start.patch
 $(APPLY) $(SRC)/ffmpeg/0002-avcodec-mpeg12dec-don-t-end-a-slice-without-first_sl.patch
 $(APPLY) $(SRC)/ffmpeg/0001-fix-mf_utils-compilation-with-mingw64.patch
 $(APPLY) $(SRC)/ffmpeg/0011-avcodec-videotoolboxenc-disable-calls-on-unsupported.patch
 $(APPLY) $(SRC)/ffmpeg/avcodec-fix-compilation-visionos.patch
 $(APPLY) $(SRC)/ffmpeg/0009-swscale-x86-use-HOSTCPPFLAGS-instead-of-CPPFLAGS-for.patch
 $(MOVE)

.ffmpeg: ffmpeg
 $(MAKEBUILDDIR)
 $(MAKECONFDIR)/configure $(FFMPEGCONF)
 +$(MAKEBUILD)
 +$(MAKEBUILD) install-libs install-headers
 touch $@