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• Building FFMpeg 1.0.1 for Android gives me an error with make install

  23 décembre 2013, par Fabien Henon

  I'm trying to build FFMpeg 1.0.1 for Android.

  I followed this tutorial : http://www.packtpub.com/sites/default/files/downloads/Developing_Multimedia_Applications_with_NDK.pdf (part Porting the ffmpeg library to Android with NDK).

  Thus, in my ffmpeg folder I have a script build_android.sh and here is the content :

  #!/bin/bash
  
  NDK=/Users/me/android-ndk
  
  SYSROOT=$NDK/platforms/android-8/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64
  
  function build_one
  
  {
  
  ./configure \
  
   --prefix=$PREFIX \
  
   --disable-shared \
  
   --enable-static \
  
   --disable-doc \
  
   --disable-ffmpeg \
  
   --disable-ffplay \
  
   --disable-ffprobe \
  
   --disable-ffserver \
  
   --disable-avdevice \
  
   --disable-doc \
  
   --disable-symver \
  
   --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
  
   --target-os=linux \
  
   --arch=arm \
  
   --enable-cross-compile \
  
   --sysroot=$SYSROOT \
  
   --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
  
   --extra-ldflags="$ADDI_LDFLAGS" \
  
   $ADDITIONAL_CONFIGURE_FLAG
  
  make clean
  
  make
  
  make install
  
  }
  
  CPU=arm
  
  PREFIX=$(pwd)/android/$CPU 
  
  ADDI_CFLAGS="-marm"
  
  build_one

  That was working fine mith version 2.1 of ffmpeg but with version 1.0.1 and other versions it does not work.

  I have the following error :

  ...
  
  CC  libavutil/random_seed.o
  
  CC  libavutil/rational.o
  
  CC  libavutil/rc4.o
  
  CC  libavutil/samplefmt.o
  
  CC  libavutil/sha.o
  
  CC  libavutil/time.o
  
  CC  libavutil/timecode.o
  
  CC  libavutil/tree.o
  
  CC  libavutil/utils.o
  
  CC  libavutil/xtea.o
  
  AR  libavutil/libavutil.a
  
  INSTALL libavfilter/libavfilter.a
  
  ./install: line 2: syntax error near unexpected token `)'
  
  ./install: line 2: `1) Type './configure' to create the configuration. A list of configure'
  
  make: *** [install-libavfilter-static] Error 2

  I'm using NDK 9r and Mac OSX.

  So the configure command works fine, the make commmand too, but the make install is not working and is giving me the error.

  Can you help me with this issue ?

  For you information, ./install is (in my opinion) the INSTALL file which has this content :

  1) Type './configure' to create the configuration. A list of configure
  
  options is printed by running 'configure --help'.
  
  
  
  'configure' can be launched from a directory different from the FFmpeg
  
  sources to build the objects out of tree. To do this, use an absolute
  
  path when launching 'configure', e.g. '/ffmpegdir/ffmpeg/configure'.
  
  
  
  2) Then type 'make' to build FFmpeg. GNU Make 3.81 or later is required.
  
  
  
  3) Type 'make install' to install all binaries and libraries you built.
  
  
  
  NOTICE
  
  
  
   - Non system dependencies (e.g. libx264, libvpx) are disabled by default.

  I don't know why make install tries to execute this file. Here is the content of the Makefile :

  MAIN_MAKEFILE=1
  
  include config.mak
  
  
  
  vpath %.c    $(SRC_PATH)
  
  vpath %.cpp  $(SRC_PATH)
  
  vpath %.h    $(SRC_PATH)
  
  vpath %.S    $(SRC_PATH)
  
  vpath %.asm  $(SRC_PATH)
  
  vpath %.v    $(SRC_PATH)
  
  vpath %.texi $(SRC_PATH)
  
  vpath %/fate_config.sh.template $(SRC_PATH)
  
  
  
  PROGS-$(CONFIG_FFMPEG)   += ffmpeg
  
  PROGS-$(CONFIG_FFPLAY)   += ffplay
  
  PROGS-$(CONFIG_FFPROBE)  += ffprobe
  
  PROGS-$(CONFIG_FFSERVER) += ffserver
  
  
  
  PROGS      := $(PROGS-yes:%=%$(PROGSSUF)$(EXESUF))
  
  INSTPROGS   = $(PROGS-yes:%=%$(PROGSSUF)$(EXESUF))
  
  OBJS        = cmdutils.o
  
  OBJS-ffmpeg = ffmpeg_opt.o ffmpeg_filter.o
  
  TESTTOOLS   = audiogen videogen rotozoom tiny_psnr base64
  
  HOSTPROGS  := $(TESTTOOLS:%=tests/%) doc/print_options
  
  TOOLS       = qt-faststart trasher
  
  TOOLS-$(CONFIG_ZLIB) += cws2fws
  
  
  
  BASENAMES   = ffmpeg ffplay ffprobe ffserver
  
  ALLPROGS    = $(BASENAMES:%=%$(PROGSSUF)$(EXESUF))
  
  ALLPROGS_G  = $(BASENAMES:%=%$(PROGSSUF)_g$(EXESUF))
  
  ALLMANPAGES = $(BASENAMES:%=%.1)
  
  
  
  FFLIBS-$(CONFIG_AVDEVICE) += avdevice
  
  FFLIBS-$(CONFIG_AVFILTER) += avfilter
  
  FFLIBS-$(CONFIG_AVFORMAT) += avformat
  
  FFLIBS-$(CONFIG_AVRESAMPLE) += avresample
  
  FFLIBS-$(CONFIG_AVCODEC)  += avcodec
  
  FFLIBS-$(CONFIG_POSTPROC) += postproc
  
  FFLIBS-$(CONFIG_SWRESAMPLE)+= swresample
  
  FFLIBS-$(CONFIG_SWSCALE)  += swscale
  
  
  
  FFLIBS := avutil
  
  
  
  DATA_FILES := $(wildcard $(SRC_PATH)/presets/*.ffpreset) $(SRC_PATH)/doc/ffprobe.xsd
  
  EXAMPLES_FILES := $(wildcard $(SRC_PATH)/doc/examples/*.c) $(SRC_PATH)/doc/examples/Makefile
  
  
  
  SKIPHEADERS = cmdutils_common_opts.h
  
  
  
  include $(SRC_PATH)/common.mak
  
  
  
  FF_EXTRALIBS := $(FFEXTRALIBS)
  
  FF_DEP_LIBS  := $(DEP_LIBS)
  
  
  
  all: $(PROGS)
  
  
  
  $(PROGS): %$(EXESUF): %_g$(EXESUF)
  
      $(CP) $< $@
  
      $(STRIP) $@
  
  
  
  $(TOOLS): %$(EXESUF): %.o
  
      $(LD) $(LDFLAGS) $(LD_O) $< $(ELIBS)
  
  
  
  tools/cws2fws$(EXESUF): ELIBS = $(ZLIB)
  
  
  
  config.h: .config
  
  .config: $(wildcard $(FFLIBS:%=$(SRC_PATH)/lib%/all*.c))
  
      @-tput bold 2>/dev/null
  
      @-printf '\nWARNING: $(?F) newer than config.h, rerun configure\n\n'
  
      @-tput sgr0 2>/dev/null
  
  
  
  SUBDIR_VARS := CLEANFILES EXAMPLES FFLIBS HOSTPROGS TESTPROGS TOOLS      \
  
                 ARCH_HEADERS BUILT_HEADERS SKIPHEADERS                    \
  
                 ARMV5TE-OBJS ARMV6-OBJS ARMVFP-OBJS NEON-OBJS             \
  
                 MMI-OBJS ALTIVEC-OBJS VIS-OBJS                            \
  
                 MMX-OBJS YASM-OBJS                                        \
  
                 MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSPR1-OBJS MIPS32R2-OBJS  \
  
                 OBJS HOSTOBJS TESTOBJS
  
  
  
  define RESET
  
  $(1) :=
  
  $(1)-yes :=
  
  endef
  
  
  
  define DOSUBDIR
  
  $(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
  
  SUBDIR := $(1)/
  
  include $(SRC_PATH)/$(1)/Makefile
  
  -include $(SRC_PATH)/$(1)/$(ARCH)/Makefile
  
  include $(SRC_PATH)/library.mak
  
  endef
  
  
  
  $(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))
  
  
  
  define DOPROG
  
  OBJS-$(1) += $(1).o
  
  $(1)$(PROGSSUF)_g$(EXESUF): $(OBJS-$(1))
  
  $$(OBJS-$(1)): CFLAGS  += $(CFLAGS-$(1))
  
  $(1)$(PROGSSUF)_g$(EXESUF): LDFLAGS += $(LDFLAGS-$(1))
  
  $(1)$(PROGSSUF)_g$(EXESUF): FF_EXTRALIBS += $(LIBS-$(1))
  
  -include $$(OBJS-$(1):.o=.d)
  
  endef
  
  
  
  $(foreach P,$(PROGS-yes),$(eval $(call DOPROG,$(P))))
  
  
  
  %$(PROGSSUF)_g$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS)
  
      $(LD) $(LDFLAGS) $(LD_O) $(OBJS-$*) cmdutils.o $(FF_EXTRALIBS)
  
  
  
  OBJDIRS += tools
  
  
  
  -include $(wildcard tools/*.d)
  
  
  
  VERSION_SH  = $(SRC_PATH)/version.sh
  
  GIT_LOG     = $(SRC_PATH)/.git/logs/HEAD
  
  
  
  .version: $(wildcard $(GIT_LOG)) $(VERSION_SH) config.mak
  
  .version: M=@
  
  
  
  version.h .version:
  
      $(M)$(VERSION_SH) $(SRC_PATH) version.h $(EXTRA_VERSION)
  
      $(Q)touch .version
  
  
  
  # force version.sh to run whenever version might have changed
  
  -include .version
  
  
  
  ifdef PROGS
  
  install: install-progs install-data
  
  endif
  
  
  
  install: install-libs install-headers
  
  
  
  install-libs: install-libs-yes
  
  
  
  install-progs-yes:
  
  install-progs-$(CONFIG_SHARED): install-libs
  
  
  
  install-progs: install-progs-yes $(PROGS)
  
      $(Q)mkdir -p "$(BINDIR)"
  
      $(INSTALL) -c -m 755 $(INSTPROGS) "$(BINDIR)"
  
  
  
  install-data: $(DATA_FILES) $(EXAMPLES_FILES)
  
      $(Q)mkdir -p "$(DATADIR)/examples"
  
      $(INSTALL) -m 644 $(DATA_FILES) "$(DATADIR)"
  
      $(INSTALL) -m 644 $(EXAMPLES_FILES) "$(DATADIR)/examples"
  
  
  
  uninstall: uninstall-libs uninstall-headers uninstall-progs uninstall-data
  
  
  
  uninstall-progs:
  
      $(RM) $(addprefix "$(BINDIR)/", $(ALLPROGS))
  
  
  
  uninstall-data:
  
      $(RM) -r "$(DATADIR)"
  
  
  
  clean::
  
      $(RM) $(ALLPROGS) $(ALLPROGS_G)
  
      $(RM) $(CLEANSUFFIXES)
  
      $(RM) $(TOOLS)
  
      $(RM) $(CLEANSUFFIXES:%=tools/%)
  
      $(RM) coverage.info
  
      $(RM) -r coverage-html
  
  
  
  distclean::
  
      $(RM) $(DISTCLEANSUFFIXES)
  
      $(RM) config.* .version version.h libavutil/avconfig.h libavcodec/codec_names.h
  
  
  
  config:
  
      $(SRC_PATH)/configure $(value FFMPEG_CONFIGURATION)
  
  
  
  # Without the sed genthml thinks "libavutil" and "./libavutil" are two different things
  
  coverage.info: $(wildcard *.gcda *.gcno */*.gcda */*.gcno */*/*.gcda */*/*.gcno)
  
      $(Q)lcov -c -d . -b . | sed -e 's#/./#/#g' > $@
  
  
  
  coverage-html: coverage.info
  
      $(Q)mkdir -p $@
  
      $(Q)genhtml -o $@ $<
  
      $(Q)touch $@
  
  
  
  check: all alltools examples testprogs fate
  
  
  
  include $(SRC_PATH)/doc/Makefile
  
  include $(SRC_PATH)/tests/Makefile
  
  
  
  $(sort $(OBJDIRS)):
  
      $(Q)mkdir -p $@
  
  
  
  # Dummy rule to stop make trying to rebuild removed or renamed headers
  
  %.h:
  
      @:
  
  
  
  # Disable suffix rules.  Most of the builtin rules are suffix rules,
  
  # so this saves some time on slow systems.
  
  .SUFFIXES:
  
  
  
  .PHONY: all all-yes alltools check *clean config install*
  
  .PHONY: testprogs uninstall*

• ffmpeg with frei0r libraries fails on os x 10.14.6

  13 novembre 2019, par Bernhard Wagner

  I’m on Mac OS X 10.14.6 (Mojave), used homebrew to install both ffmpeg and frei0r.
  If you check the output below, the option --enable-frei0r is there.

  I verified the path to the frei0r libaries and call ffmpeg like this :

  FREI0R_PATH=/usr/local/Cellar/frei0r/1.6.1/lib/frei0r-1/ ffmpeg -v debug -i running.mkv -filter:v frei0r=pixeliz0r=0.02:0.02 pixel.mkv

  however it fails the exact same way as if I hadn’t passed the env var FREI0R_PATH :

  FREI0R_PATH=/usr/local/Cellar/frei0r/1.6.1/lib/frei0r-1/ ffmpeg -y -v debug -i running.mkv -filter:v frei0r=pixeliz0r=0.02:0.02 pixel.mkv
  
  ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple clang version 11.0.0 (clang-1100.0.33.8)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.1_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include/darwin -fno-stack-check' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
  
    libavutil      56. 31.100 / 56. 31.100
  
    libavcodec     58. 54.100 / 58. 54.100
  
    libavformat    58. 29.100 / 58. 29.100
  
    libavdevice    58.  8.100 / 58.  8.100
  
    libavfilter     7. 57.100 /  7. 57.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  5.100 /  5.  5.100
  
    libswresample   3.  5.100 /  3.  5.100
  
    libpostproc    55.  5.100 / 55.  5.100
  
  Splitting the commandline.
  
  Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
  
  Reading option '-v' ... matched as option 'v' (set logging level) with argument 'debug'.
  
  Reading option '-i' ... matched as input url with argument 'running.mkv'.
  
  Reading option '-filter:v' ... matched as option 'filter' (set stream filtergraph) with argument 'frei0r=pixeliz0r=0.02:0.02'.
  
  Reading option 'pixel.mkv' ... matched as output url.
  
  Finished splitting the commandline.
  
  Parsing a group of options: global .
  
  Applying option y (overwrite output files) with argument 1.
  
  Applying option v (set logging level) with argument debug.
  
  Successfully parsed a group of options.
  
  Parsing a group of options: input url running.mkv.
  
  Successfully parsed a group of options.
  
  Opening an input file: running.mkv.
  
  [NULL @ 0x7f894e002000] Opening 'running.mkv' for reading
  
  [file @ 0x7f894ce20f40] Setting default whitelist 'file,crypto'
  
  [matroska,webm @ 0x7f894e002000] Format matroska,webm probed with size=2048 and score=100
  
  st:0 removing common factor 1000000 from timebase
  
  st:1 removing common factor 1000000 from timebase
  
  [matroska,webm @ 0x7f894e002000] Before avformat_find_stream_info() pos: 1021 bytes read:32768 seeks:0 nb_streams:2
  
  [h264 @ 0x7f894e003400] nal_unit_type: 7(SPS), nal_ref_idc: 3
  
  [h264 @ 0x7f894e003400] nal_unit_type: 8(PPS), nal_ref_idc: 3
  
  [h264 @ 0x7f894e003400] nal_unit_type: 7(SPS), nal_ref_idc: 3
  
  [h264 @ 0x7f894e003400] nal_unit_type: 8(PPS), nal_ref_idc: 3
  
  [h264 @ 0x7f894e003400] nal_unit_type: 5(IDR), nal_ref_idc: 1
  
  [h264 @ 0x7f894e003400] Format yuv420p chosen by get_format().
  
  [h264 @ 0x7f894e003400] Reinit context to 1280x720, pix_fmt: yuv420p
  
  [h264 @ 0x7f894e003400] no picture
  
  [matroska,webm @ 0x7f894e002000] All info found
  
  [matroska,webm @ 0x7f894e002000] After avformat_find_stream_info() pos: 26157 bytes read:32768 seeks:0 frames:5
  
  Input #0, matroska,webm, from 'running.mkv':
  
    Metadata:
  
      MINOR_VERSION   : 0
  
      COMPATIBLE_BRANDS: iso6avc1mp41
  
      MAJOR_BRAND     : dash
  
      ENCODER         : Lavf58.29.100
  
    Duration: 00:00:46.22, start: -0.013000, bitrate: 2189 kb/s
  
      Stream #0:0, 3, 1/1000: Video: h264 (Main), 1 reference frame, yuv420p(tv, bt709, progressive, left), 1280x720 [SAR 1:1 DAR 16:9], 0/1, 60 fps, 60 tbr, 1k tbn, 120 tbc (default)
  
      Metadata:
  
        HANDLER_NAME    : ISO Media file produced by Google Inc.
  
        DURATION        : 00:00:46.216000000
  
      Stream #0:1(eng), 2, 1/1000: Audio: opus, 48000 Hz, stereo, fltp, delay 312 (default)
  
      Metadata:
  
        DURATION        : 00:00:46.194000000
  
  Successfully opened the file.
  
  Parsing a group of options: output url pixel.mkv.
  
  Applying option filter:v (set stream filtergraph) with argument frei0r=pixeliz0r=0.02:0.02.
  
  Successfully parsed a group of options.
  
  Opening an output file: pixel.mkv.
  
  [file @ 0x7f894ce22840] Setting default whitelist 'file,crypto'
  
  Successfully opened the file.
  
  detected 4 logical cores
  
  [h264 @ 0x7f894d006a00] nal_unit_type: 7(SPS), nal_ref_idc: 3
  
  [h264 @ 0x7f894d006a00] nal_unit_type: 8(PPS), nal_ref_idc: 3
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (opus (native) -> vorbis (libvorbis))
  
  Press [q] to stop, [?] for help
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
      Last message repeated 1 times
  
  [opus @ 0x7f894d020000] skip 312/960 samples
  
  [h264 @ 0x7f894d006a00] nal_unit_type: 5(IDR), nal_ref_idc: 1
  
  [h264 @ 0x7f894d006a00] Format yuv420p chosen by get_format().
  
  [h264 @ 0x7f894d006a00] Reinit context to 1280x720, pix_fmt: yuv420p
  
  [graph_1_in_0_1 @ 0x7f894ce3f740] Setting 'time_base' to value '1/48000'
  
  [graph_1_in_0_1 @ 0x7f894ce3f740] Setting 'sample_rate' to value '48000'
  
  [h264 @ 0x7f894d006a00] no picture
  
  [graph_1_in_0_1 @ 0x7f894ce3f740] Setting 'sample_fmt' to value 'fltp'
  
  [graph_1_in_0_1 @ 0x7f894ce3f740] Setting 'channel_layout' to value '0x3'
  
  [graph_1_in_0_1 @ 0x7f894ce3f740] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3
  
  [format_out_0_1 @ 0x7f894ce3fdc0] Setting 'sample_fmts' to value 'fltp'
  
  [AVFilterGraph @ 0x7f894cc07180] query_formats: 4 queried, 9 merged, 0 already done, 0 delayed
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
      Last message repeated 2 times
  
  [h264 @ 0x7f894d007000] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
  [h264 @ 0x7f894e030800] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
  [h264 @ 0x7f894e030e00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
      Last message repeated 1 times
  
  [h264 @ 0x7f894e017c00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
  [h264 @ 0x7f894d006a00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  [Parsed_frei0r_0 @ 0x7f894ce4fe40] Setting 'pixeliz0r' to value '0.02'
  
  [Parsed_frei0r_0 @ 0x7f894ce4fe40] Option 'pixeliz0r' not found
  
  [AVFilterGraph @ 0x7f894cc08340] Error initializing filter 'frei0r' with args 'pixeliz0r=0.02:0.02'
  
  Error reinitializing filters!
  
  Failed to inject frame into filter network: Option not found
  
  Error while processing the decoded data for stream #0:0
  
  [AVIOContext @ 0x7f894cc06400] Statistics: 0 seeks, 0 writeouts
  
  [libvorbis @ 0x7f894d800c00] 44 frames left in the queue on closing
  
  [AVIOContext @ 0x7f894ce21080] Statistics: 65536 bytes read, 0 seeks
  
  Conversion failed!

• so Confused, why my build of libffmpeg.so > 17M ?

  24 février 2012, par ghost

  I did build ffmpeg for Android in winxp and scientific linux , ffmpeg is in dolphin player — an open source video player (http://code.google.com/p/dolphin-player/), and i just build the ffmpeg, its seems like the same as in rockplayer 1.7.0, they all use build_andriod.sh below， it worked in both winxp and linux,
  and all successfully got bin/ffmpeg (less than 5MB), but libffmpeg.so ( > 17MB)， when put libffmpeg.so in dolphin-player libs , player can't work, the size 17MB is too large, the original libffmpeg.so in olphin-player libs is less than 5MB, please give some advice.

  #!/bin/bash
  
  
  
  ######################################################
  
  # FFmpeg builds script for Android+ARM platform
  
  #
  
  # This script is released under term of 
  
  #   CDDL (http://www.opensource.org/licenses/cddl1) 
  
  # Wrote by pinxue (~@gmail.com) from RockPlayer.com
  
  #                                   2010-8 ~ 2011-4
  
  ######################################################
  
  
  
  ######################################################
  
  # 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
  
  ######################################################
  
  
  
  export TMPDIR=D:/tmp/android
  
  export NDK=D:/android-ndk-r4
  
  
  
  #PLATFORM=$NDK/build/platforms/android-8/arch-arm/
  
  PLATFORM=$NDK/build/platforms/android-8/arch-arm
  
  #PREBUILT=$NDK/build/prebuilt/darwin-x86/arm-eabi-4.4.0
  
  PREBUILT=$NDK/build/prebuilt/windows/arm-eabi-4.4.0
  
  
  
  function build_one
  
  {
  
  
  
  # -fasm : required. Android header file uses asm keyword instead of __asm__ , but most of c dialect (like ansi,c99,gnu99) implies -fno-asm.
  
  #   ~/android/android-ndk-r4/build/platforms/android-5/arch-arm//usr/include/asm/byteorder.h: In function '___arch__swab32':
  
  #   ~/android/android-ndk-r4/build/platforms/android-5/arch-arm//usr/include/asm/byteorder.h:25: error: expected ')' before ':' token
  
  
  
  # -fno-short-enums : optimized.  Else FFmpeg obj will generate a huge number of warning for variable-size enums, 
  
  #   though we may suppress them by --no-enum-size-warning, it would be better to avoid it.
  
  #   .../ld: warning: cmdutils.o uses variable-size enums yet the output is to use 32-bit enums; use of enum values across objects may fail
  
  
  
  # --extra-libs="-lgcc" : required. Else cannot solve some runtime function symbols
  
  #   ... undefined reference to `__aeabi_f2uiz'
  
  
  
  # --enable-protocols : required. Without this option, the file open always fails mysteriously.
  
  #   FFmpeg's av_open_input_file will invoke file format probing functions, but because most of useful demuxers has flag of zero 
  
  #   which cause them are ignored during file format probling and fall to url stream parsing,
  
  #   if protocols are disabled, the file:// url cannot be opened as well.
  
  
  
  # $PREBUILT/bin/arm-eabi-ar d libavcodec/libavcodec.a inverse.o : required.
  
  #   FFmpeg includes two copies of inverse.c both in libavutil and libavcodec for performance consideration (not sure the benifit yet)
  
  #   Without this step, final ld of generating libffmpeg.so will fail silently, if invoke ld through gcc, gcc will collect more reasonable error message.
  
  
  
  # -llog: debug only, FFmpeg itself doesn't require it at all.
  
  #   With this option, we may simply includes "utils/Log.h" and use LOGx() to observe FFmpeg's behavior
  
  #   PS, it seems the toolchain implies -DNDEBUG somewhere, it would be safer to use following syntax
  
  #    #ifdef NDEBUG
  
  #        #undef NDEBUG
  
  #        #define HAVE_NDEBUG
  
  #    #endif
  
  #    #include "utils/Log.h"
  
  #    #ifdef HAVE_NDEBUG
  
  #        #define NDEBUG
  
  #        #undef HAVE_NDEBUG
  
  #    #endif
  
  
  
  # --whole-archive : required. Else ld generate a small .so file (about 15k)
  
  
  
  # --no-stdlib : required. Android doesn't use standard c runtime but invited its own wheal (bionic libc) because of license consideration.
  
  
  
  # space before \ of configure lines: required for some options. Else next line will be merged into previous lines's content and cause problem.
  
  #   Especially the --extra-cflags, the next line will pass to gcc in this case and configure will say gcc cannot create executable.
  
  
  
  # many options mentioned by articles over internet are implied by -O2 or -O3 already, need not repeat at all.
  
  
  
  # two or three common optimization cflags are omitted because not sure about the trade off yet. invoke NDK build system with V=1 to find them.
  
  
  
  # -Wl,-T,$PREBUILT/arm-eabi/lib/ldscripts/armelf.x mentioned by almost every articles over internet, but it is not required to specify at all.
  
  
  
  # -Dipv6mr_interface=ipv6mr_ifindex : required. Android inet header doesn't use ipv6mr_interface which is required by rfc, seems it generate this user space header file directly from kernel header file, but Linux kernel has decided to keep its own name for ever and ask user space header to use rfc name.
  
  
  
  # HAVE_SYS_UIO_H : required. Else:
  
  # In file included from ~/android/android-ndk-r4/build/platforms/android-5/arch-arm//usr/include/linux/socket.h:29,
  
  #                 from ~/android/android-ndk-r4/build/platforms/android-5/arch-arm//usr/include/sys/socket.h:33,
  
  #                 from libavformat/network.h:35,
  
  #                 from libavformat/utils.c:46:
  
  #~/android/android-ndk-r4/build/platforms/android-5/arch-arm//usr/include/linux/uio.h:19: error: redefinition of 'struct iovec'
  
  #
  
  
  
  # --disable-doc : required because of strange bug of toolchain.
  
  #
  
  
  
  #
  
  #--extra-ldflags=-Wl,-T,$PREBUILT/arm-eabi/lib/ldscripts/armelf.x -Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib $PREBUILT/lib/gcc/arm-eabi/4.4.0/crtbegin.o $PREBUILT/lib/gcc/arm-eabi/4.4.0/crtend.o -lc -lm -ldl"
  
  #
  
  
  
  ./configure --target-os=linux \
  
      --prefix=$PREFIX \
  
      --enable-cross-compile \
  
      --extra-libs="-lgcc" \
  
      --arch=arm \
  
      --cc=$PREBUILT/bin/arm-eabi-gcc \
  
      --cross-prefix=$PREBUILT/bin/arm-eabi- \
  
      --nm=$PREBUILT/bin/arm-eabi-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" \
  
      --enable-parsers \
  
      --disable-encoders  \
  
      --enable-decoders \
  
      --disable-muxers \
  
      --enable-demuxers \
  
      --enable-swscale  \
  
      --disable-ffplay \
  
      --disable-ffprobe \
  
      --disable-ffserver \
  
      --enable-network \
  
      --enable-indevs \
  
      --disable-bsfs \
  
      --disable-filters \
  
      --enable-protocols  \
  
      --enable-asm \
  
      --disable-doc \
  
      $ADDITIONAL_CONFIGURE_FLAG
  
  
  
  ##make clean
  
  make  -j4 install
  
  
  
  
  
  $PREBUILT/bin/arm-eabi-ar d libavcodec/libavcodec.a inverse.o
  
  
  
  $PREBUILT/bin/arm-eabi-ld -rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib  -soname libffmpeg.so -shared -nostdlib  -z,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a  -lc -lm -lz -ldl -llog  --warn-once  --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-eabi/4.4.0/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-neon 
  
  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