Tag Archives: librtmp

Compiling FFmpeg with libRTMP and libmp3lame for Intel, ARM and QorIQ PowerPC CPUs

14 Replies

Intel cross-compile for Synology NAS on Ubuntu Desktop 12.04 64bit (VirtualBox VM running on a Macbook Air):

#-----set up Synology toolchain
cd ~/Downloads
PART1="http://sourceforge.net/projects/dsgpl/files/DSM%204.0%20Tool%20Chains/"
PART2="Intel%20x86%20Linux%202.6.32%20%28Pineview%29/gcc420_glibc236_x64-GPL.tgz"
wget "${PART1}${PART2}"
tar xvzf gcc420_glibc236_x64-GPL.tgz
sudo mv x86_64-linux-gnu /usr/local
export PATH="/usr/local/x86_64-linux-gnu/bin:${PATH}"

#-----libz static lib
wget http://zlib.net/zlib-1.2.7.tar.gz
tar xvzf zlib-1.2.7.tar.gz
cd zlib-1.2.7
./configure --prefix=/usr/local/x86_64-linux-gnu --static
make libz.a
cp libz.a /usr/local/x86_64-linux-gnu/lib
cp *.h /usr/local/x86_64-linux-gnu/include/
cd ..

#-----libbz2 static lib
#-----seem to need 32bit libraries to build bzip2
#-----http://maketecheasier.com/run-32-bit-apps-in-64-bit-linux/2009/08/10
sudo apt-get install ia32-libs
wget http://bzip.org/1.0.6/bzip2-1.0.6.tar.gz
tar xvfz bzip2-1.0.6.tar.gz
cd bzip2-1.0.6
sed -i 's/^CC=gcc/CC=x86_64-linux-gnu-gcc/g' Makefile
sed -i 's/^AR=ar rc/AR=x86_64-linux-gnu-ar rc/g' Makefile
sed -i 's/^RANLIB=ranlib/RANLIB=x86_64-linux-gnu-ranlib/g' Makefile
make
make install PREFIX=/usr/local/x86_64-linux-gnu
cd ..

#-----libmp3lame static lib
sudo apt-get install nasm
wget http://sourceforge.net/projects/lame/files/lame/3.99/lame-3.99.5.tar.gz
tar xvzf lame-3.99.5.tar.gz
cd lame-3.99.5
./configure --prefix=/usr/local/x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --build=x86_64-linux-gnu --enable-static --disable-shared --disable-decoder --enable-nasm
make
make install
cd..

#-----libssl & libcrypto static libs
wget http://www.openssl.org/source/openssl-0.9.8v.tar.gz
tar xvzf openssl-0.9.8v.tar.gz
cd openssl-0.9.8v
./config --prefix=/usr/local/x86_64-linux-gnu no-shared
sed -i 's/^CC= gcc/CC= x86_64-linux-gnu-gcc/g' Makefile
sed -i 's/^AR= ar /AR= x86_64-linux-gnu-ar /g' Makefile
sed -i 's/^ARD=ar /ARD=x86_64-linux-gnu-ar /g' Makefile
sed -i 's/^RANLIB= \/usr\/bin\/ranlib/RANLIB=x86_64-linux-gnu-ranlib/g' Makefile
sed -i 's/^MAKEDEPPROG= gcc/MAKEDEPPROG= x86_64-linux-gnu-gcc /g' Makefile
make
make install
cd ..

#-----librtmp 2.4 static lib
wget http://download.serviio.org/opensource/rtmpdump-c58cfb3e9208c6e6bc1aa18f1b1d650d799084e5.tar.gz
tar xvfz rtmpdump-c58cfb3e9208c6e6bc1aa18f1b1d650d799084e5.tar.gz
cd rtmpdump
#-----move all static libs to a separate folder to force compiler to use them
#-----http://www.gossamer-threads.com/lists/apache/dev/265052
mkdir /tmp/lib
cp /usr/local/x86_64-linux-gnu/lib/*.a /tmp/lib
#-----fix Makefile (won't compile without libdl linked)
#-----http://forum.luahub.com/index.php?topic=2390.0
sed -i.bak -e '/^LIB_OPENSSL\=/s/lcrypto/lcrypto \-ldl/' Makefile
make CROSS_COMPILE=x86_64-linux-gnu- SYS=posix prefix=/usr/local/x86_64-linux-gnu INC=-I/usr/local/x86_64-linux-gnu XLDFLAGS=-L/tmp/lib SHARED=
make install prefix=/usr/local/x86_64-linux-gnu SHARED=
cd ..

#-----gather all static libs again ready for FFmpeg compile
cp /usr/local/x86_64-linux-gnu/lib/*.a /tmp/lib
#-----remove unsupported URL line from pkgconfig/librtmp.pc
#-----pkg-config --exists --print-errors librtmp
sed -i -e '/^URL/d' /usr/local/x86_64-linux-gnu/lib/pkgconfig/librtmp.pc
export PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:/usr/local/x86_64-linux-gnu/lib/pkgconfig"

#-----FFmpeg 0.11.1
wget http://download.serviio.org/opensource/ffmpeg-N-41860-g6fd0b55.tar.gz
tar xvzf ffmpeg-N-41860-g6fd0b55.tar.gz
cd ffmpeg
echo N-41860-g6fd0b55 > RELEASE
#-----Intel CPU-specific options
#-----pkg-config needs to be defined because with cross-prefix it assumes x86_64-linux-gnu-pkg-config which doesn't exist, and then librtmp won't be detected
sudo apt-get install yasm
./configure --arch=x86_64 --enable-ssse3 --cross-prefix=x86_64-linux-gnu- --target-os=linux --prefix=/usr/local/x86_64-linux-gnu --extra-cflags='-I/usr/local/x86_64-linux-gnu/include' --extra-ldflags='-L/tmp/lib' --enable-static --disable-shared --disable-ffplay --disable-ffserver --enable-pthreads --enable-libmp3lame --enable-librtmp --pkg-config=pkg-config --extra-version=Serviio
make
./ffmpeg
 

ARM cross-compile for Synology NAS on Ubuntu Desktop 12.04 64bit (VirtualBox VM running on a Macbook Air):

#-----set up Synology toolchain
cd ~/Downloads
PART1="http://sourceforge.net/projects/dsgpl/files/DSM%204.1%20Tool%20Chains/"
PART2="Marvell%2088F628x%20Linux%202.6.32/gcc421_glibc25_88f6281-GPL.tgz"
wget "${PART1}${PART2}"
tar xvzf gcc421_glibc25_88f6281-GPL.tgz
sudo mv arm-none-linux-gnueabi /usr/local
export PATH=/usr/local/arm-none-linux-gnueabi/bin:$PATH
export AR=arm-none-linux-gnueabi-ar
export CC=arm-none-linux-gnueabi-gcc
export CXX=arm-none-linux-gnueabi-g++
export LD=arm-none-linux-gnueabi-ld
export RANLIB=arm-none-linux-gnueabi-ranlib
export CFLAGS="-I/usr/local/arm-none-linux-gnueabi/include"
export LDFLAGS="-L/usr/local/arm-none-linux-gnueabi/lib"

#-----libz static lib
wget http://zlib.net/zlib-1.2.7.tar.gz
tar xvzf zlib-1.2.7.tar.gz
cd zlib-1.2.7
./configure --prefix=/usr/local/arm-none-linux-gnueabi --static
make libz.a
cp libz.a /usr/local/arm-none-linux-gnueabi/lib
cp *.h /usr/local/arm-none-linux-gnueabi/include/
cd ..

#-----libbz2 static lib
wget http://bzip.org/1.0.6/bzip2-1.0.6.tar.gz
tar xvfz bzip2-1.0.6.tar.gz
cd bzip2-1.0.6
sed -i 's/^CC=gcc/CC=arm-none-linux-gnueabi-gcc/g' Makefile
sed -i 's/^AR=ar/AR=arm-none-linux-gnueabi-ar/g' Makefile
sed -i 's/^RANLIB=ranlib/RANLIB=arm-none-linux-gnueabi-ranlib/g' Makefile
#remove the tests - we can't run the native binaries
sed -i 's/^\(all: libbz2\.a bzip2 bzip2recover\) test/\1/' Makefile
make
make install PREFIX=/usr/local/arm-none-linux-gnueabi
cd ..

#-----libmp3lame static lib
wget http://sourceforge.net/projects/lame/files/lame/3.99/lame-3.99.5.tar.gz
tar xvzf lame-3.99.5.tar.gz
cd lame-3.99.5
./configure --prefix=/usr/local/arm-none-linux-gnueabi --host=arm-none-linux-gnueabi --build=x86_64-linux-gnu --enable-static --disable-shared --disable-decoder
make
make install
cd ..

#-----libssl & libcrypto static libs
wget http://www.openssl.org/source/openssl-0.9.8v.tar.gz
tar xvzf openssl-0.9.8v.tar.gz
cd openssl-0.9.8v
#Some kind of strange issue where cross compilation parameters are ignored
#unless this fix is used http://marc.waeckerlin.org/computer/blog/openssl_fuer_windows_mingw_unter_linux_crosscomilieren
sed -i 's/\(die \"target already defined - \$target (offending arg\)/#\1/' Configure
./config --prefix=/usr/local/arm-none-linux-gnueabi no-shared linux-generic32
make
make install
cd ..

#-----librtmp 2.4 static lib
wget http://download.serviio.org/opensource/rtmpdump-c58cfb3e9208c6e6bc1aa18f1b1d650d799084e5.tar.gz
tar xvfz rtmpdump-c58cfb3e9208c6e6bc1aa18f1b1d650d799084e5.tar.gz
cd rtmpdump
#-----move all static libs to a separate folder to force compiler to use them
#-----http://www.gossamer-threads.com/lists/apache/dev/265052
mkdir /tmp/lib
cp /usr/local/arm-none-linux-gnueabi/lib/*.a /tmp/lib
#-----fix Makefile (won't compile without libdl linked)
#-----http://forum.luahub.com/index.php?topic=2390.0
sed -i.bak -e '/^LIB_OPENSSL\=/s/lcrypto/lcrypto \-ldl/' Makefile
make CROSS_COMPILE=arm-none-linux-gnueabi- SYS=posix prefix=/usr/local/arm-none-linux-gnueabi INC=-I/usr/local/arm-none-linux-gnueabi XLDFLAGS=-L/tmp/lib SHARED=
make install prefix=/usr/local/arm-none-linux-gnueabi SHARED=
cd ..

#-----gather all static libs again ready for FFmpeg compile
cp /usr/local/arm-none-linux-gnueabi/lib/*.a /tmp/lib
#-----remove unsupported URL line from pkgconfig/librtmp.pc
#-----pkg-config --exists --print-errors librtmp
sed -i -e '/^URL/d' /usr/local/arm-none-linux-gnueabi/lib/pkgconfig/librtmp.pc
export PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:/usr/local/arm-none-linux-gnueabi/lib/pkgconfig"

#-----FFmpeg
wget http://download.serviio.org/opensource/ffmpeg-N-42368-gbf53863.tar.gz
tar xvzf ffmpeg-N-42368-gbf53863.tar.gz
cd ffmpeg
#-----fixed point maths modification for mpeg audio encoder
sed -i "s/^#define USE_FLOATS//" libavcodec/mpegaudioenc.c
#-----Marvell Kirkwood mv6282 CPU is based on the ARMv5TE core which has DSP and thumb instruction support
#-----http://www.arm.com/products/processors/technologies/dsp-simd.php
#-----http://www.marvell.com/embedded-processors/kirkwood/assets/88f6282-3_pb.pdf
#-----ARMv5TE CPU-specific options (based on inspecting 'configure' source https://github.com/FFmpeg/FFmpeg/blob/master/configure)
#-----pkg-config needs to be defined because with cross-prefix it assumes arm-none-linux-gnueabi-pkg-config which doesn't exist, and then librtmp won't be detected
#-----zmbv encoder refuses to cross compile here so it's disabled
./configure --arch=arm --cpu=armv5te --cross-prefix=arm-none-linux-gnueabi- --target-os=linux --prefix=/usr/local/arm-none-linux-gnueabi --extra-cflags='-I/usr/local/arm-none-linux-gnueabi/include' --extra-ldflags='-L/tmp/lib' --enable-static --disable-shared --disable-ffplay --disable-ffserver --enable-pthreads --enable-libmp3lame --enable-librtmp --disable-encoder=zmbv --pkg-config=pkg-config --extra-version=Serviio
make

./ffmpeg

Freescale QorIQ P1022 PowerPC cross-compile for Synology NAS on Ubuntu Desktop 12.04 64bit (VirtualBox VM running on a Macbook Air):

#-----set up Synology toolchain
cd ~/Downloads
PART1="http://sourceforge.net/projects/dsgpl/files/DSM%204.1%20Tool%20Chains/"
PART2="PowerPC%20QorIQ%20Linux%202.6.32/gcc4374_eglibc2874_qoriq-GPL.tgz"
wget "${PART1}${PART2}"
tar xvzf gcc4374_eglibc2874_qoriq-GPL.tgz
sudo mv powerpc-none-linux-gnuspe /usr/local
export PATH=/usr/local/powerpc-none-linux-gnuspe/bin:$PATH
export AR=powerpc-none-linux-gnuspe-ar
export CC=powerpc-none-linux-gnuspe-gcc
export CXX=powerpc-none-linux-gnuspe-g++
export LD=powerpc-none-linux-gnuspe-ld
export RANLIB=powerpc-none-linux-gnuspe-ranlib
export CFLAGS="-I/usr/local/powerpc-none-linux-gnuspe/include"
export LDFLAGS="-L/usr/local/powerpc-none-linux-gnuspe/lib"

#-----libz static lib
wget http://zlib.net/zlib-1.2.7.tar.gz
tar xvzf zlib-1.2.7.tar.gz
cd zlib-1.2.7
./configure --prefix=/usr/local/powerpc-none-linux-gnuspe --static
make libz.a
cp libz.a /usr/local/powerpc-none-linux-gnuspe/lib
cp *.h /usr/local/powerpc-none-linux-gnuspe/include/
cd ..

#-----libbz2 static lib
wget http://bzip.org/1.0.6/bzip2-1.0.6.tar.gz
tar xvfz bzip2-1.0.6.tar.gz
cd bzip2-1.0.6
sed -i 's/^CC=gcc/CC=powerpc-none-linux-gnuspe-gcc/g' Makefile
sed -i 's/^AR=ar/AR=powerpc-none-linux-gnuspe-ar/g' Makefile
sed -i 's/^RANLIB=ranlib/RANLIB=powerpc-none-linux-gnuspe-ranlib/g' Makefile
#remove the tests - we can't run the native binaries
sed -i 's/^\(all: libbz2\.a bzip2 bzip2recover\) test/\1/' Makefile
make
make install PREFIX=/usr/local/powerpc-none-linux-gnuspe
cd ..

#-----libmp3lame static lib
wget http://sourceforge.net/projects/lame/files/lame/3.99/lame-3.99.5.tar.gz
tar xvzf lame-3.99.5.tar.gz
cd lame-3.99.5
./configure --prefix=/usr/local/powerpc-none-linux-gnuspe --host=powerpc-none-linux-gnuspe --build=x86_64-linux-gnu --enable-static --disable-shared --disable-decoder
make
make install
cd..

#-----libssl & libcrypto static libs
wget http://www.openssl.org/source/openssl-0.9.8v.tar.gz
tar xvzf openssl-0.9.8v.tar.gz
cd openssl-0.9.8v
#Some kind of strange issue where cross compilation parameters are ignored
#unless this fix is used http://marc.waeckerlin.org/computer/blog/openssl_fuer_windows_mingw_unter_linux_crosscomilieren
sed -i 's/\(die \"target already defined - \$target (offending arg\)/#\1/' Configure
./config --prefix=/usr/local/powerpc-none-linux-gnuspe no-shared linux-ppc
make
make install
cd ..

#-----librtmp 2.4 static lib
wget http://download.serviio.org/opensource/rtmpdump-c58cfb3e9208c6e6bc1aa18f1b1d650d799084e5.tar.gz
tar xvfz rtmpdump-c58cfb3e9208c6e6bc1aa18f1b1d650d799084e5.tar.gz
cd rtmpdump
#-----move all static libs to a separate folder to force compiler to use them
#-----http://www.gossamer-threads.com/lists/apache/dev/265052
mkdir /tmp/lib
cp /usr/local/powerpc-none-linux-gnuspe/lib/*.a /tmp/lib
#-----fix Makefile (won't compile without libdl linked)
#-----http://forum.luahub.com/index.php?topic=2390.0
sed -i.bak -e '/^LIB_OPENSSL\=/s/lcrypto/lcrypto \-ldl/' Makefile
make CROSS_COMPILE=powerpc-none-linux-gnuspe- SYS=posix prefix=/usr/local/powerpc-none-linux-gnuspe INC=-I/usr/local/powerpc-none-linux-gnuspe XLDFLAGS=-L/tmp/lib SHARED=
make install prefix=/usr/local/powerpc-none-linux-gnuspe SHARED=
cd ..

#-----gather all static libs again ready for FFmpeg compile
cp /usr/local/powerpc-none-linux-gnuspe/lib/*.a /tmp/lib
#-----remove unsupported URL line from pkgconfig/librtmp.pc
#-----pkg-config --exists --print-errors librtmp
sed -i -e '/^URL/d' /usr/local/powerpc-none-linux-gnuspe/lib/pkgconfig/librtmp.pc
export PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:/usr/local/powerpc-none-linux-gnuspe/lib/pkgconfig"

#-----FFmpeg
wget http://download.serviio.org/opensource/ffmpeg-N-42368-gbf53863.tar.gz
tar xvzf ffmpeg-N-42368-gbf53863.tar.gz
cd ffmpeg
#-----QorIQ P1022 CPU is based on the PowerPC e500v2 core which has Signal Processing Engine which is not a classic FPU design
#-----some QorIQ models have e500mc cores with true FPUs but these are not used in 2013 series Synology NAS
#-----http://en.wikipedia.org/wiki/QorIQ
#-----http://cache.freescale.com/files/32bit/doc/fact_sheet/QP1022FS.pdf?fpsp=1
#-----PowerPC e500v2 CPU-specific options (based on inspecting source https://github.com/FFmpeg/FFmpeg/blob/master/configure)
#-----pkg-config needs to be defined because with cross-prefix it assumes powerpc-none-linux-gnuspe-pkg-config which doesn't exist, and then librtmp won't be detected
./configure --arch=ppc --cpu=e500v2 --cross-prefix=powerpc-none-linux-gnuspe- --target-os=linux --prefix=/usr/local/powerpc-none-linux-gnuspe --extra-cflags='-I/usr/local/powerpc-none-linux-gnuspe/include' --extra-ldflags='-L/tmp/lib' --enable-static --disable-shared --disable-ffplay --disable-ffserver --enable-pthreads --enable-libmp3lame --enable-librtmp --pkg-config=pkg-config --extra-version=Serviio
make
./ffmpeg

Cross-compiling FFmpeg with librtmp for Intel CPU Synology NAS

12 Replies

I used this method to compile the FFmpeg binary for inclusion in my Serviio package, because I don’t have a NAS with an Intel CPU. Several people who tried to help were getting strange errors while trying to compile on their NAS units.

To begin, install 64bit Ubuntu Linux (I used a VM). As a test I first successfully cross-compiled ARM binaries using the same method but using the ARM Synology toolchain, since I was able to test the results. Once I got it working I did the following:

#-----set up Synology toolchain
cd ~/Downloads
wget http://sourceforge.net/projects/dsgpl/files/DSM%203.1%20Tool%20Chains/Intel%20x86%20Linux%202.6.32/gcc420_glibc236_pineview.tgz
tar xvfz gcc420_glibc236_pineview.tgz
sudo mv i686-linux-gnu /usr/local
sudo mv x86_64-linux-gnu /usr/local
#-----I think the Synology toolchain is anticipating being run on i686-linux-gnu, so we need 32bit libraries to even run the binaries
#-----http://maketecheasier.com/run-32-bit-apps-in-64-bit-linux/2009/08/10
sudo apt-get install ia32-libs
export PATH="/usr/local/x86_64-linux-gnu/bin:${PATH}"

#-----libz static lib
wget http://zlib.net/zlib-1.2.5.tar.gz
tar xvfz zlib-1.2.5.tar.gz
cd zlib-1.2.5
#-----http://www.crosscompile.org/static/pages/ZLib.html
#-----http://tinc-vpn.org/examples/cross-compiling-64-bit-windows-binary/
./configure --prefix=/usr/local/x86_64-linux-gnu --static
sed -i 's/^CC=gcc/CC=x86_64-linux-gnu-gcc/g' Makefile
sed -i 's/^LDSHARED=gcc/LDSHARED=x86_64-linux-gnu-gcc/g' Makefile
sed -i 's/^CPP=gcc -E/CPP=x86_64-linux-gnu-gcc -E/g' Makefile
sed -i 's/^AR=ar rc/AR=x86_64-linux-gnu-ar rc/g' Makefile
sed -i 's/^RANLIB=ranlib/RANLIB=x86_64-linux-gnu-ranlib/g' Makefile
make libz.a
cp libz.a /usr/local/x86_64-linux-gnu/lib
cp *.h /usr/local/x86_64-linux-gnu/include/
cd ..

#-----libbz2 static lib
wget http://bzip.org/1.0.6/bzip2-1.0.6.tar.gz
tar xvfz bzip2-1.0.6.tar.gz
cd bzip2-1.0.6
sed -i 's/^CC=gcc/CC=x86_64-linux-gnu-gcc/g' Makefile
sed -i 's/^AR=ar rc/AR=x86_64-linux-gnu-ar rc/g' Makefile
sed -i 's/^RANLIB=ranlib/RANLIB=x86_64-linux-gnu-ranlib/g' Makefile
make
make install PREFIX=/usr/local/x86_64-linux-gnu
cd ..

#-----libmp3lame static lib
wget http://sourceforge.net/projects/lame/files/lame/3.98.4/lame-3.98.4.tar.gz
tar xvfz lame-3.98.4.tar.gz
cd lame-3.98.4
./configure --prefix=/usr/local/x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --build=x86_64-linux-gnu --enable-static --disable-shared --disable-decoder --enable-nasm
make
make install

#-----libssl & libcrypto static libs
ipkg install openssl-dev
wget http://www.openssl.org/source/openssl-0.9.8p.tar.gz
tar xvfz openssl-0.9.8p.tar.gz
cd openssl-0.9.8p
./config --prefix=/usr/local/x86_64-linux-gnu no-shared
sed -i 's/^CC= gcc/CC= x86_64-linux-gnu-gcc/g' Makefile
sed -i 's/^AR= ar /AR= x86_64-linux-gnu-ar /g' Makefile
sed -i 's/^ARD=ar /ARD=x86_64-linux-gnu-ar /g' Makefile
sed -i 's/^RANLIB= \/usr\/bin\/ranlib/RANLIB=x86_64-linux-gnu-ranlib/g' Makefile
sed -i 's/^MAKEDEPPROG= gcc/MAKEDEPPROG= x86_64-linux-gnu-gcc /g' Makefile
make
make install
cd ..

#-----librtmp 2.4 static lib
wget http://download.serviio.org/opensource/rtmpdump-c58cfb3e9208c6e6bc1aa18f1b1d650d799084e5.tar.gz
tar xvfz rtmpdump-c58cfb3e9208c6e6bc1aa18f1b1d650d799084e5.tar.gz
cd rtmpdump
#-----move all static libs to a separate folder to force compiler to use them
#-----http://www.gossamer-threads.com/lists/apache/dev/265052
mkdir /tmp/lib
cp /usr/local/x86_64-linux-gnu/lib/*.a /tmp/lib
#-----fix Makefile (won't compile without libdl linked)
#-----http://forum.luahub.com/index.php?topic=2390.0
sed -i.bak -e '/^LIB_OPENSSL\=/s/lcrypto/lcrypto \-ldl/' Makefile
make CROSS_COMPILE=x86_64-linux-gnu- SYS=posix prefix=/usr/local/x86_64-linux-gnu INC=-I/usr/local/x86_64-linux-gnu XLDFLAGS=-L/tmp/lib SHARED=
make install prefix=/usr/local/x86_64-linux-gnu SHARED=
cd ..
#-----gather all static libs again ready for FFmpeg compile
cp /usr/local/x86_64-linux-gnu/lib/*.a /tmp/lib
#-----remove unsupported URL line from pkgconfig/librtmp.pc
#-----pkg-config --exists --print-errors librtmp
sed -i -e '/^URL/d' /usr/local/x86_64-linux-gnu/lib/pkgconfig/librtmp.pc
export PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:/usr/local/x86_64-linux-gnu/lib/pkgconfig"

#-----FFmpeg 0.8.2 (slightly newer than the one at Serviio.org)
wget http://dl.dropbox.com/u/1188556/ffmpeg-HEAD-05a2673.tar.gz
tar xvfz ffmpeg-HEAD-05a2673.tar.gz
cd ffmpeg-HEAD-05a2673
#-----Intel CPU-specific options
#-----pkg-config needs to be defined because with cross-prefix it assumes x86_64-linux-gnu-pkg-config which doesn't exist, and then librtmp won't be detected
sudo apt-get install yasm
./configure --arch=x86_64 --enable-ssse3 --cross-prefix=x86_64-linux-gnu- --target-os=linux --prefix=/usr/local/x86_64-linux-gnu
--extra-cflags='-I/usr/local/x86_64-linux-gnu/include' --extra-ldflags='-L/tmp/lib' --enable-static --disable-shared --disable-ffplay
--disable-ffserver --enable-pthreads --enable-libmp3lame --enable-librtmp --pkg-config=pkg-config --extra-version=Serviio
make
make install