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• Build FFmpeg with Freetype2 for ARM ( Android ) - SOLVED

  15 juillet 2014, par Pawel Cala

  I’m trying to build FFmpeg binary file with freetype library included ( I need it for drawtext filter ). Unfortunately I cannot configure ffmpeg properly and every try ends with "freetype not found" error.

  PS I’ve tried to build guardian-ffmpeg project but i’m getting errors during configure process.

  PS2 Building plain ffmpeg works perfectly well

  Configuration script :

  make distclean &./configure --target-os=linux \
  
  --cross-prefix=arm-linux-androideabi- \
  
  --arch=arm \
  
  --cpu=armv7-a \
  
  --enable-libfreetype --enable-filter=drawtext \ #!Freetype params
  
  --disable-network \
  
  --disable-ffplay \
  
  --disable-ffprobe \
  
  --disable-ffserver \
  
  --enable-protocol=file \
  
  --sysroot=${ANDROID_NDK_ROOT_PATH}/platforms/${ANDROID_API_VERSION}/arch-arm \
  
  --prefix=build/armeabi-v7a \
  
  --disable-asm \
  
  --extra-cflags='-DANDROID -Ifreetype2/ -I${ANDROID_NDK_ROOT_PATH}/sources/cxx-stl/system/include -march=armv7-a -mfloat-abi=softfp' \
  
  --extra-ldflags='-Wl,--fix-cortex-a8 -Lfreetype2/ -L../android-libs -Wl,-rpath-link,../android-libs' \
  
  --extra-cxxflags='-Wno-multichar -fno-exceptions -fno-rtti'
  
  make -j6 && make install || exit 0

  Directories sctructure :

  ffmpeg/
  
     -ffmpeg dirs/
  
     -freetype2/
  
     -rest of ffmpeg files ( including configure, make, etc )

  I’ve checked patch sources in guardian-project and I’ve found that ffmpeg configure file might need some changes in require_libfreetype method ?!

  Thanks in advance ( and sorry for my bad english )

  EDIT :
  Building on OSX Mavericks,
  Last 3 lines of config.log ; OSX hasn’t got pkg-config therefore false in 2nd line :

  require_libfreetype
  
  false --exists --print-errors freetype
  
  ERROR: freetype not found

  EDIT :
  SOLUTION !!!

  I’ve manadged to solve my issue. I’ve used Xubuntu 14.04 64bit + Freetype 2.5.3 + newest FFmpeg repo + install linux package "pkg_config" and small modifications in ffmpeg configure script ( find pkg_config and check initialization variable )

  config file for freetype :

  NDK_BASE=/home/dpc/Documents/android-ndk-r9d/
  
  NDK_PROCESSOR=x86_64
  
  NDK_PLATFORM_LEVEL=9
  
  NDK_ABI=arm
  
  NDK_COMPILER_VERSION=4.6
  
  
  
  # Android NDK setup
  
  NDK_PLATFORM_LEVEL=9
  
  NDK_ABI=arm
  
  NDK_COMPILER_VERSION=4.6
  
  NDK_SYSROOT=$NDK_BASE/platforms/android-$NDK_PLATFORM_LEVEL/arch-$NDK_ABI
  
  NDK_UNAME=`uname -s | tr '[A-Z]' '[a-z]'`
  
  if [ $NDK_ABI = "x86" ]; then
  
      HOST=i686-linux-android
  
      NDK_TOOLCHAIN=$NDK_ABI-$NDK_COMPILER_VERSION
  
  else
  
      HOST=$NDK_ABI-linux-androideabi
  
      NDK_TOOLCHAIN=$HOST-$NDK_COMPILER_VERSION
  
  fi
  
  NDK_TOOLCHAIN_BASE=$NDK_BASE/toolchains/$NDK_TOOLCHAIN/prebuilt/$NDK_UNAME-$NDK_PROCESSOR
  
  echo "dpc:" $NDK_TOOLCHAIN_BASE
  
  
  
  CC="$NDK_TOOLCHAIN_BASE/bin/$HOST-gcc --sysroot=$NDK_SYSROOT"
  
  LD=$NDK_TOOLCHAIN_BASE/bin/$HOST-ld
  
  STRIP=$NDK_TOOLCHAIN_BASE/bin/$HOST-strip
  
  PREFIX=$(pwd)/build
  
  
  
  simple_config(){
  
  make clean
  
  ./configure --host=arm-linux-androideabi --without-zlib --without-png --prefix=
  
  make -j4
  
  make install DESTDIR=$(pwd)
  
  }
  
  
  
  complex_config(){
  
  
  
      ./configure \
  
      CC="$CC" \
  
      LD="$LD" \
  
      CFLAGS="-std=gnu99 -mcpu=cortex-a8 -marm -mfloat-abi=softfp -mfpu=neon" \
  
      --host=$HOST \
  
      --with-sysroot="$NDK_SYSROOT" \
  
      --enable-static \
  
      --disable-shared \
  
      --prefix=$PREFIX
  
      --without-bzip2
  
  
  
      make -j4
  
      make install
  
  }
  
  
  
  
  
  make clean
  
  complex_config

  ffmpeg config file :

  #!/bin/sh
  
  
  
  ANDROID_NDK_ROOT_PATH=/home/dpc/Documents/android-ndk-r9d
  
  ANDROID_API_VERSION=android-9
  
  #export PATH=${ANDROID_NDK_ROOT_PATH}:${ANDROID_NDK_ROOT_PATH}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/:$PATH
  
  export PATH=${ANDROID_NDK_ROOT_PATH}:${ANDROID_NDK_ROOT_PATH}/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/:$PATH
  
  echo $PATH
  
  #export PKG_CONFIG_PATH=/home/dpc/Documents/freetype-2.5.3/build/lib/pkgconfig/
  
  #echo $PKG_CONFIG_PATH
  
  
  
  #armv7-a neon
  
  #export ARCH=armeabi-v7a-neon
  
  #./configure --target-os=linux --cross-prefix=arm-linux-androideabi- --arch=arm --cpu=armv7-a --sysroot=${ANDROID_NDK_ROOT_PATH}/platforms/${ANDROID_API_VERSION}/arch-arm --disable-avdevice --disable-decoder=h264_vdpau  --prefix=build/armeabi-v7a-neon --extra-cflags='-DANDROID -I${ANDROID_NDK_ROOT_PATH}/sources/cxx-stl/system/include -march=armv7-a -mfloat-abi=softfp -mfpu=neon' --extra-ldflags='-Wl,--fix-cortex-a8 -L../android-libs -Wl,-rpath-link,../android-libs' --extra-cxxflags='-Wno-multichar -fno-exceptions -fno-rtti'
  
  #make -j6 && make install && make distclean|| exit 0
  
  
  
  #armv7-a
  
  export ARCH=armeabi-v7a
  
  ./configure --target-os=linux \
  
  --cross-prefix=arm-linux-androideabi- \
  
  --arch=arm \
  
  --enable-libfreetype \
  
  --cpu=armv7-a \
  
  --sysroot=${ANDROID_NDK_ROOT_PATH}/platforms/${ANDROID_API_VERSION}/arch-arm \
  
  --disable-avdevice \
  
  --disable-decoder=h264_vdpau  \
  
  --prefix=build/armeabi-v7a \
  
  --extra-cflags='-DANDROID -I${ANDROID_NDK_ROOT_PATH}/sources/cxx-stl/system/include -march=armv7-a -mfloat-abi=softfp' \
  
  --extra-ldflags='-Wl,--fix-cortex-a8 -L../android-libs -Wl,-rpath-link,../android-libs' \
  
  --extra-cxxflags='-Wno-multichar -fno-exceptions -fno-rtti'
  
  make -j6 && make install && make distclean|| exit 0

  Hope it helps someone (cc : @SinhHo )

• Compiling FFmpeg 2.3 with Android NDK r10

  25 juillet 2014, par Robin

  I want to compile FFMpeg 2.3 with Android NDK r10 by following this tutorial : http://www.roman10.net/how-to-build-ffmpeg-for-android/

  After getting several errors i modified the build script like this :

    #!/bin/bash
  
      ######################################################
  
  # Usage:
  
  # put this script in top of FFmpeg source tree
  
  # ./build_android
  
  # It generates binary for following architectures:
  
  # ARMv6 
  
  # ARMv6+VFP 
  
  # ARMv7+VFM-ïd16 (Tegra2) 
  
  # ARMv7+Neon (Cortex-A8)
  
  # Customizing:
  
  # 1. Feel free to change ./configure parameters for more features
  
  # 2. To adapt other ARM variants
  
  # set $CPU and $OPTIMIZE_CFLAGS 
  
  # call build_one
  
  ######################################################
  
  NDK=/usr/local/src/android-ndk-r10
  
  PLATFORM=$NDK/platforms/android-8/arch-arm/
  
  PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64
  
  function build_one
  
  {
  
  ./configure --target-os=linux \
  
      --prefix=$PREFIX \
  
      --enable-cross-compile \
  
      --extra-libs="-lgcc" \
  
      --arch=arm \
  
      --cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
  
      --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
  
      --nm=$PREBUILT/bin/arm-linux-androideabi-nm \
  
      --sysroot=$PLATFORM \
  
      --extra-cflags=" -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1 -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums -fno-strict-aliasing -finline-limit=300 $OPTIMIZE_CFLAGS " \
  
      --disable-shared \
  
      --enable-static \
  
      --extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib -lc -lm -ldl -llog" \
  
      --disable-everything \
  
      --enable-demuxer=mov \
  
      --enable-demuxer=h264 \
  
      --disable-ffplay \
  
      --enable-protocol=file \
  
      --enable-avformat \
  
      --enable-avcodec \
  
      --enable-decoder=rawvideo \
  
      --enable-decoder=mjpeg \
  
      --enable-decoder=h263 \
  
      --enable-decoder=h265 \
  
      --enable-decoder=mpeg4 \
  
      --enable-decoder=h264 \
  
      --enable-parser=h264 \
  
      --enable-parser=h265
  
      --enabled-network \
  
      --enable-zlib \
  
      --disable-avfilter \
  
      --disable-avdevice \
  
      $ADDITIONAL_CONFIGURE_FLAG
  
  
  
  make clean
  
  make  -j4 install
  
  $PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o
  
  $PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib  -soname libffmpeg.so -nostdlib,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a -lc -lm -lz -ldl -llog --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.8/libgcc.a
  
  }
  
  
  
  #arm v6
  
  #CPU=armv6
  
  #OPTIMIZE_CFLAGS="-marm -march=$CPU"
  
  #PREFIX=./android/$CPU 
  
  #ADDITIONAL_CONFIGURE_FLAG=
  
  #build_one
  
  
  
  #arm v7vfpv3
  
  CPU=armv7-a
  
  OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU "
  
  PREFIX=./android/$CPU
  
  ADDITIONAL_CONFIGURE_FLAG=
  
  build_one
  
  
  
  #arm v7vfp
  
  #CPU=armv7-a
  
  #OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfp -marm -march=$CPU "
  
  #PREFIX=./android/$CPU-vfp
  
  #ADDITIONAL_CONFIGURE_FLAG=
  
  #build_one
  
  
  
  #arm v7n
  
  #CPU=armv7-a
  
  #OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=neon -marm -march=$CPU -mtune=cortex-a8"
  
  #PREFIX=./android/$CPU 
  
  #ADDITIONAL_CONFIGURE_FLAG=--enable-neon
  
  #build_one
  
  
  
  #arm v6+vfp
  
  #CPU=armv6
  
  #OPTIMIZE_CFLAGS="-DCMP_HAVE_VFP -mfloat-abi=softfp -mfpu=vfp -marm -march=$CPU"
  
  #PREFIX=./android/${CPU}_vfp 
  
  #ADDITIONAL_CONFIGURE_FLAG=
  
  #build_one

  But unfortunatly I get the following error :

      INSTALL ffmpeg
  
  INSTALL ffprobe
  
  INSTALL ffserver
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(eventfd.o): multiple definition of 'eventfd'
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(eventfd.o): previous definition here
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): multiple definition of '__dorand48'
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): previous definition here
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): multiple definition of '__rand48_mult'
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): previous definition here
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): multiple definition of '__rand48_add'
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): previous definition here
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): multiple definition of '__rand48_seed'
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): previous definition here
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libm.a(s_scalbn.o): multiple definition of 'ldexp'
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(ldexp.o): previous definition here
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: cannot find -lz
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: cannot find -ldl
  
  /usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: cannot find -llog
  
  libavformat/http.c:384: error: undefined reference to 'inflateEnd'
  
  libavformat/http.c:385: error: undefined reference to 'inflateInit2_'
  
  libavformat/http.c:390: error: undefined reference to 'zlibCompileFlags'
  
  libavformat/http.c:1029: error: undefined reference to 'inflateEnd'
  
  libavformat/http.c:867: error: undefined reference to 'inflate'
  
  libavformat/id3v2.c:840: error: undefined reference to 'uncompress'
  
  libavformat/mov.c:2934: error: undefined reference to 'uncompress'
  
  bionic/libc/bionic/drand48.c:24: error: undefined reference to '_rand48_seed'
  
  bionic/libc/bionic/erand48.c:21: error: undefined reference to '_dorand48'

  Any help would be appreciated. Thank you !

• Server Move For multimedia.cx

  1er août 2014, par Multimedia Mike — General

  I made a big change to multimedia.cx last week : I moved hosting from a shared web hosting plan that I had been using for 10 years to a dedicated virtual private server (VPS). In short, I now have no one to blame but myself for any server problems I experience from here on out.

  The tipping point occurred a few months ago when my game music search engine kept breaking regardless of what technology I was using. First, I had an admittedly odd C-based CGI solution which broke due to mysterious binary compatibility issues, the sort that are bound to occur when trying to make a Linux binary run on heterogeneous distributions. The second solution was an SQLite-based solution. Like the first solution, this worked great until it didn’t work anymore. Something else mysteriously broke vis-à-vis PHP and SQLite on my server. I started investigating a MySQL-based full text search solution but couldn’t make it work, and decided that I shouldn’t have to either.

  Ironically, just before I finished this entire move operation, I noticed that my SQLite-based FTS solution was working again on the old shared host. I’m not sure when that problem went away. No matter, I had already thrown the switch.

  How Hard Could It Be ?
  We all have thresholds for the type of chores we’re willing to put up with and which we’d rather pay someone else to perform. For the past 10 years, I felt that administering a website’s underlying software is something that I would rather pay someone else to worry about. To be fair, 10 years ago, I don’t think VPSs were a thing, or at least a viable thing in the consumer space, and I wouldn’t have been competent enough to properly administer one. Though I would have been a full-time Linux user for 5 years at that point, I was still the type to build all of my own packages from source (I may have still been running Linux From Scratch 10 years ago) which might not be the most tractable solution for server stability.

  These days, VPSs are a much more affordable option (easily competitive with shared web hosting). I also realized I know exactly how to install and configure all the software that runs the main components of the various multimedia.cx sites, having done it on local setups just to ensure that my automated backups would actually be useful in the event of catastrophe.

  All I needed was the will to do it.

  The Switchover Process
  Here’s the rough plan :

  • Investigate options for both VPS providers and mail hosts– I might be willing to run a web server but NOT a mail server
  • Start plotting several months in advance of my yearly shared hosting renewal date
  • Screw around for several months, playing video games and generally finding reasons to put off the move
  • Panic when realizing there are only a few days left before the yearly renewal comes due

  So that’s the planning phase. BTW, I chose Digital Ocean for VPS and Zoho for email hosting. Here’s the execution phase I did last week :

  • Register with Digital Ocean and set up DNS entries to point to the old shared host for the time being
  • Once the D-O DNS servers respond correctly using a manual ‘dig’ command, use their servers as the authoritative ones for multimedia.cx
  • Create a new Droplet (D-O VPS), install all the right software, move the databases, upload the files ; and exhaustively document each step, gotcha, and pitfall ; treat a VPS as necessarily disposable and have an eye towards iterating the process with a new VPS
  • Use /etc/hosts on a local machine to point DNS to the new server and verify that each site is working correctly
  • After everything looks all right, update the DNS records to point to the new server

  Finally, flip the switch on the MX record by pointing it to the new email provider.

  Improvements and Problems
  Hosting on Digital Ocean is quite amazing so far. Maybe it’s the SSDs. Whatever it is, all the sites are performing far better than on the old shared web host. People who edit the MultimediaWiki report that changes get saved in less than the 10 or so seconds required on the old server.

  Again, all problems are now my problems. A sore spot with the shared web host was general poor performance. The hosting company would sometimes complain that my sites were using too much CPU. I would have loved to try to optimize things. However, the cPanel interface found on many shared hosts don’t give you a great deal of data for debugging performance problems. However, same sites, same software, same load on the VPS is considerably more performant.

  Problem : I’ve already had the MySQL database die due to a spike in usage. I had to manually restart it. I was considering a cron-based solution to check if the server is running and restart it if not. In response to my analysis that my databases are mostly read and not often modified, so db crashes shouldn’t be too disastrous, a friend helpfully reminded me that, “You would not make a good sysadmin with attitudes like ‘an occasional crash is okay’.”

  To this end, I am planning to migrate the database server to a separate VPS. This is a strategy that even Digital Ocean recommends. I’m hoping that the MySQL server isn’t subject to such memory spikes, but I’ll continue to monitor it after I set it up.

  Overall, the server continues to get modest amounts of traffic. I predict it will remain that way unless Dark Shikari resurrects the x264dev blog. The biggest spike that multimedia.cx ever saw was when Steve Jobs linked to this WebM post.

  Dropped Sites
  There are a bunch of subdomains I dropped because I hadn’t done anything with them for years and I doubt anyone will notice they’re gone. One notable section that I decided to drop is the samples.mplayerhq.hu archive. It will live on, but it will be hosted by samples.ffmpeg.org, which had a full mirror anyway. The lower-end VPS instances don’t have the 53 GB necessary.

  Going Forward
  Here’s to another 10 years of multimedia.cx, even if multimedia isn’t as exciting as it was 10 years ago (personal opinion ; I’ll have another post on this later). But at least I can get working on some other projects now that this is done. For the past 4 months or so, whenever I think of doing some other project, I always remembered that this server move took priority over everything else.