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POffmpeg for android build - is it complete
 

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  1. POffmpeg for android build - is it complete
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    <p>//EDIT save time and refer to the <a href="http://sourceforge.net/projects/ffmpeg4android/" rel="nofollow">SF project</a> . IMO, it may save a ton of work getting up to speed.....</p> <p>after more work on this issue:</p> <p>added a git <a href="https://github.com/rowntreerob/android-ffmpeg" rel="nofollow">project</a></p> <p>build is easier with custom toolchain installed so that you can invoke <a href="http://source-android.frandroid.com/ndk/docs/STANDALONE-TOOLCHAIN.html" rel="nofollow">compiler the easy way</a></p> <p>sample stdout from <a href="http://pastebin.com/y04cmXBM" rel="nofollow">ndk-build</a></p> <p>-- originally used ubuntu 12.04 inside vmplayer on windows vista. IMO linux is better for builds than cygwin.</p> <p>I follow these <a href="http://www.roman10.net/how-to-build-ffmpeg-for-android/comment-page-5" rel="nofollow">instructions</a> getting a indeterminant outcome in which the following conditions exist.</p> <blockquote> <p>build_android.sh seems to exit normally<br> config.log has error where confirming gcc from crosstoolchain<br> all the static libs are built ok (./libavfilter, ./libavcodec etc )<br> ffmpeg.o is there and executes ok<br> no ./android directory as per the prefix setting to config</p> </blockquote> <p>it looks like i can just push the binaries to my phone and test in a shell. If that's ok then i can look to a jni wrapper for the static libs.</p> <p>But why didn't the build write anything to --prefix=./android/armv7-a ?? that path does not exist at the conclusion of the build</p> <p>Details:</p> <p>config log what was processed:</p> <pre><code>FFMPEG_CONFIGURATION='--target-os=linux --prefix=./android/armv7-a --enable-libvpx --enable-libvorbis --enable-pthreads --logfile=config.log --enable-cross-compile --extra-libs=-lgcc --arch=arm --cc=/home/rob/src/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --cross-prefix=/home/rob/src/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi- --nm=/home/rob/src/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-nm --sysroot=/home/rob/src/android-ndk-r8/platforms/android-14/arch-arm/ --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 -mfloat-abi=softfp -marm -march=armv7-a -mtune=cortex-a9 '"'"' --disable-shared --enable-static --extra-ldflags='"'"' -Wl,-rpath-link=/home/rob/src/android-ndk-r8/platforms/android-14/arch-arm//usr/lib -L/home/rob/src/android-ndk-r8/platforms/android-14/arch-arm//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=mpeg4 --enable-decoder=h264 --enable-parser=h264 --disable-network --enable-zlib --disable-avfilter --disable-avdevice' </code></pre> <p>tail of config log contains error on compiler check</p> <pre><code>zmbv_test='yes' zmbv_test_deps='zlib' WARNING: /home/rob/src/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-pkg-config not found, library detection may fail. mktemp -u XXXXXX Yd2A0h WARNING: Unknown C compiler /home/rob/src/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc, unable to select optimal CFLAGS check_ld cc check_cc BEGIN /tmp/ffconf.m9Kg3cqt.c 1 int main(void){ return 0; } END /tmp/ffconf.m9Kg3cqt.c /home/rob/src/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1 -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums -fno-strict-aliasing -finline-limit=300 -mfloat-abi=softfp -marm -march=armv7-a -mtune=cortex-a9 -c -o /tmp/ffconf.tO2EIBz5.o /tmp/ffconf.m9Kg3cqt.c ./configure: 640: ./configure: /home/rob/src/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc: not found C compiler test failed. </code></pre> <p>tail of build_android.sh stdout looks OK</p> <pre><code>libavutil/opt.c: In function ‘av_find_opt’: libavutil/opt.c:41:5: warning: ‘av_next_option’ is deprecated (declared at libavutil/opt.h:347) [-Wdeprecated-declarations] CC libavutil/pixdesc.o libavutil/opt.c: In function ‘av_opt_set_defaults’: libavutil/opt.c:601:5: warning: ‘av_opt_set_defaults2’ is deprecated (declared at libavutil/opt.h:370) [-Wdeprecated-declarations] CC libavutil/random_seed.o CC libavutil/rational.o CC libavutil/rc4.o CC libavutil/samplefmt.o CC libavutil/sha.o CC libavutil/timecode.o CC libavutil/tree.o CC libavutil/utils.o CC libavutil/x86/cpu.o INSTALL libavdevice/avdevice.h INSTALL presets/libvpx-1080p50_60.ffpreset INSTALL presets/libvpx-1080p.ffpreset INSTALL presets/libvpx-360p.ffpreset INSTALL presets/libvpx-720p50_60.ffpreset INSTALL presets/libvpx-720p.ffpreset INSTALL presets/libx264-ipod320.ffpreset INSTALL presets/libx264-ipod640.ffpreset INSTALL doc/ffprobe.xsd INSTALL libavdevice/libavdevice.pc INSTALL libavfilter/asrc_abuffer.h INSTALL libavfilter/avcodec.h INSTALL libavfilter/avfilter.h INSTALL libavfilter/avfiltergraph.h INSTALL libavfilter/buffersink.h INSTALL libavfilter/version.h INSTALL libavfilter/vsrc_buffer.h INSTALL libavfilter/libavfilter.pc INSTALL libavformat/avformat.h INSTALL libavformat/avio.h INSTALL libavformat/version.h INSTALL libavformat/libavformat.pc INSTALL libavresample/avresample.h INSTALL libavresample/version.h INSTALL libavresample/libavresample.pc INSTALL libavcodec/avcodec.h INSTALL libavcodec/avfft.h INSTALL libavcodec/dxva2.h INSTALL libavcodec/vaapi.h INSTALL libavcodec/vda.h INSTALL libavcodec/vdpau.h INSTALL libavcodec/version.h INSTALL libavcodec/xvmc.h INSTALL libavcodec/libavcodec.pc INSTALL libswresample/libswresample.pc INSTALL libswresample/swresample.h INSTALL libswscale/swscale.h INSTALL libswscale/libswscale.pc INSTALL libavutil/adler32.h INSTALL libavutil/aes.h INSTALL libavutil/attributes.h INSTALL libavutil/audio_fifo.h INSTALL libavutil/audioconvert.h INSTALL libavutil/avassert.h INSTALL libavutil/avstring.h INSTALL libavutil/avutil.h INSTALL libavutil/base64.h INSTALL libavutil/bprint.h INSTALL libavutil/bswap.h INSTALL libavutil/common.h INSTALL libavutil/cpu.h INSTALL libavutil/crc.h INSTALL libavutil/error.h INSTALL libavutil/eval.h INSTALL libavutil/fifo.h INSTALL libavutil/file.h INSTALL libavutil/imgutils.h INSTALL libavutil/intfloat.h INSTALL libavutil/intfloat_readwrite.h INSTALL libavutil/intreadwrite.h INSTALL libavutil/lfg.h INSTALL libavutil/log.h INSTALL libavutil/lzo.h INSTALL libavutil/mathematics.h INSTALL libavutil/md5.h INSTALL libavutil/mem.h INSTALL libavutil/dict.h INSTALL libavutil/opt.h INSTALL libavutil/parseutils.h INSTALL libavutil/pixdesc.h INSTALL libavutil/pixfmt.h INSTALL libavutil/random_seed.h INSTALL libavutil/rational.h INSTALL libavutil/samplefmt.h INSTALL libavutil/sha.h INSTALL libavutil/timecode.h INSTALL libavutil/timestamp.h INSTALL libavutil/avconfig.h INSTALL libavutil/libavutil.pc AR libavdevice/libavdevice.a AR libavfilter/libavfilter.a AR libavformat/libavformat.a AR libavresample/libavresample.a AR libavcodec/libavcodec.a AR libswresample/libswresample.a AR libswscale/libswscale.a AR libavutil/libavutil.a INSTALL libavdevice/libavdevice.a INSTALL libavfilter/libavfilter.a INSTALL libavresample/libavresample.a INSTALL libswresample/libswresample.a INSTALL libswscale/libswscale.a INSTALL libavutil/libavutil.a INSTALL libavformat/libavformat.a LD ffmpeg_g INSTALL libavcodec/libavcodec.a CP ffmpeg STRIP ffmpeg INSTALL install-progs-yes INSTALL ffmpeg </code></pre>
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