configure_ffmpeg_dash_client.sh

#!/bin/bash

# This is a helper script to configure ffmpeg for dash demuxing. THIS DOES NOT BUILD ANYTHING!
# It will enter the source directory and run the configuration script. It will
# then return to this directory and you will have to manually enter the ffmpeg
# directory type 'make'.

########## BEGIN USER EDIT SECTION #############

srcDir=~/code/FFmpeg

# Set the HSOT OS (the OS currently running this script). Options are:
#   WIN64
#   LINUX64
#   MACOS
HOST_OS=MACOS

# Set the TARGET OS (the OS we are building for). Options are:
#   WIN64
#   LINUX64
#   LINUXARM
#   MACOS
TARGET_OS=MACOS

# Set to 1 for Debug build, 0 for release build
DEBUG=0

# Enabled features.
# This example is for a streaming client, but you can 
# put anything you want here. See ./configure --help for more info.
ENABLED="--enable-protocol=file,https,http
--enable-avformat
--enable-avcodec
--enable-muxer=segment,image2
--enable-decoder=h264,aac,hevc
--enable-demuxer=aac,h264,hevc,dash,matroska,mpegvideo
--enable-parser=mpeg4video,aac,h264,hevc
--enable-filter=showinfo
--enable-libxml2
--enable-zlib
--enable-gnutls"

# Disabled features
# This compiles SOOOO much faster and easier if you only
# compile what you need.
DISABLED=""
balh="--disable-ffprobe
--disable-ffplay
--disable-symver
--disable-encoders
--disable-decoders
--disable-muxers
--disable-demuxers
--disable-parsers
--disable-bsfs
--disable-protocols
--disable-indevs
--disable-outdevs
--disable-filters
--disable-doc
--disable-avdevice"

# Temporary features that should be removed before checking in this file
TEMPORARY=""

########## END USER EDIT SECTION #############

# Let's begin. First, enter the new directory
originalDir=`pwd`
cd $srcDir

CFLAGS=""
LDFLAGS=""
OS_SPECIFIC=""

# Depending on the host OS
case "$HOST_OS" in
	WIN64)
		case "$TARGET_OS" in
			WIN64)
				OS_SPECIFIC="--toolchain=msvc"
				CFLAGS+=""
				LDFLAGS+="-nodefaultlib:LIBCMT "
			;;
		esac
	;;
	LINUX64)
		case "$TARGET_OS" in
			WIN64)
				# Select the mingw toolchain
				# x86 is probably i686-w64-mingw32-
				# x64 is probably x86_64-w64-mingw32-
				OS_SPECIFIC="--cross-prefix=x86_64-w64-mingw32- --arch=x86 --target-os=mingw32 --enable-w32threads"
				CFLAGS+="-D__USE_MINGW_ANSI_STDIO=0 "
			;;
			LINUX64)
				export CFLAGS="-I /usr/include"
				export LDFLAGS="-L /usr/lib/x86_64-linux-gnu"
				OS_SPECIFIC="--arch=x86 --enable-pic"
				CFLAGS+="-mcmodel=large "
			;;
			LINUXARM)
				echo "Linux ARM not supported yet! But you are welcome to put it in ;)"
			;;
		esac
        ;;
	MACOS)
		case "$TARGET_OS" in
			ARMV7A)
				# JH: This is a purely llvm compilation, gcc isn't used at all.
				# I found lots of older "gcc" ways of doing this but this is the
				# most modern and best way, methinks.
				SYSROOT="${NDK}/toolchains/llvm/prebuilt/darwin-x86_64/sysroot"
				TOOLCHAIN="${NDK}/toolchains/llvm/prebuilt/darwin-x86_64"
				CFLAGS="--target=armv7-linux-androideabi26,--gcc-toolchain=$TOOLCHAIN,mfloat-abi=softfp"
				OS_SPECIFIC="--disable-runtime-cpudetect \
					--arch=arm \
					--cpu=armv7-a \
					--cc=$TOOLCHAIN/bin/armv7a-linux-androideabi26-clang \
					--target-os=android \
					--disable-symver \
					--sysroot=$SYSROOT \
					--enable-cross-compile"
			;;
			MACOS)
			;;
		esac
	;;
esac

if [ $DEBUG == 1 ]; then
	OPTIMIZATIONS="--disable-optimizations --enable-debug=3"
else
	# Don't enable --enable-runtime-cpudetect if cross-compiling!
	OPTIMIZATIONS="--disable-debug"
fi

# Run the configure script
ARGS="$OS_SPECIFIC \
	$OPTIMIZATIONS \
	$DISABLED $ENABLED \
	--enable-lto \
	--extra-cflags=\"$CFLAGS\" \
	--extra-ldflags=\"$LDFLAGS\" \
	$TEMPORARY"
./configure $ARGS
echo $ARGS

# Finally, return to the original directory
cd $originalDir