#Project Tittle ffmpeg-2.2.2 include libx264 ,configure for cross compile with AndroidNDK-r9d Jim Kuo @201406

Environment: Ubnutu 12.04 Lts , Android NDK R9d

#A. File Overview

| |- ReadMe | |- ffmpeg-2.2.2 | | | |- x264 | | | |- ffserver.conf |

#B. How to use this project?

##1.BUILD X264 (Optional)

1.1 cd /your/ffmpeg+x264/directory/

1.2 cd x264

1.3 open build_x264.sh with vi or gedit

1.4 change NDK=/your/NDK/directory

1.5 change SYSROOT/TOOLCHAIN if you will build it on different android version or arm-linux-androideabi version (**Warning: if you change it , maybe bring about unexpected error )

1.6 save build_x264.sh and chmod 777 build_x264.sh

1.7 run build_x264.sh , and wait a moment

1.8 when it finish ,you will looking for that it creat a new folder "build" under the "x264" folder

1.9 if you hope useing libx264 codec on android in ffmpeg binary , you will copy x264/build/lib/libx264.so.142 to android , Path on android is: /system/lib/

##2.BUILD FFMPEG

2.1 cd /your/ffmpeg+x264/directory/

2.2 open build_android.sh with vi or gedit

2.3 change NDK=/your/NDK/directory

2.4 change SYSROOT/TOOLCHAIN if you will build it on different android version or arm-linux-androideabi version (**Warning: if you change it , maybe bring about unexpected error )

2.5 follow your want , change configure option ! this step are important , it will affect what fuinction you can use on ffmpeg binary!
(Ex.--enable-shared \ -> --disable-shared )

2.6 if you will compile libx264 and want using it , revise that:

--extra-cflags="-I/your/path/ffmpeg-2.2.2/x264/build/include/ -Os -fpic $ADDI_CFLAGS " \
--extra-ldflags="-L/your/path/ffmpeg-2.2.2/x264/build/lib/ $ADDI_LDFLAGS " \

/your/path/ffmpeg-2.2.2/ -> /your/ffmpeg+x264/directory/

if you don't use libx264 , pleas delete taht:

-I/your/path/ffmpeg-2.2.2/x264/build/include/
-L/your/path/ffmpeg-2.2.2/x264/build/lib/

2.7 save build_android.sh and chmod 777 build_x264.sh

2.8 run build_android.sh , and wait a moment

2.9 when it finish , your will looking for that it creat a new folder "android" under the "ffmpeg-2.2.2" folder

2.10 Now, copy android/arm/bin/ to android , Path on android is: /system/bin/

2.11 copy the "real" .so file in android/arm/lib/ to android , Path on android is: /system/lib/ the real .so file has named with number Ex. libavcodec-55.so the symbol .so file has named wiht no number Ex. libavcodec.so (**note : Don't copy other file except real .so , it maybe bring about unexpected error)

##3.CHECK YOUR FFMPEG & X264 CAN WORK

3.1 adb shell your devices

3.2 key this cmd: "ffmpeg"

3.3 if you find your screen show some info , it means successful , like:

ffmpeg version 2.2.2 Copyright (c) 2000-2014 the FFmpeg developers built on Jun 11 2014 13:17:13 with gcc 4.8 (GCC) configuration: --prefix=/your/path/ffmpeg-2.2.2/android/arm --enable-shared --enable-static --enable-doc --enable-gpl --enable-libx264 --enable-pthreads --enable-ffmpeg --enable-ffplay --enable-ffprobe --enable-ffserver --enable-avdevice --enable-doc --enable-symver --enable-network --enable-debug --enable-protocol=tcp --enable-demuxer=rtsp --enable-cross-compile --cross-prefix=/your/path/Android/android-ndk-r9d/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi- --target-os=linux --arch=arm --enable-cross-compile --sysroot=/your/path/Android/android-ndk-r9d/platforms/android-9/arch-arm/ --extra-cflags='-I/your/path/ffmpeg-2.2.2/x264/build/include/ -Os -fpic -marm ' --extra-ldflags='-L/your/path/ffmpeg-2.2.2/x264/build/lib/ ' libavutil 52. 66.100 / 52. 66.100 libavcodec 55. 52.102 / 55. 52.102 libavformat 55. 33.100 / 55. 33.100 libavdevice 55. 10.100 / 55. 10.100 libavfilter 4. 2.100 / 4. 2.100 libswscale 2. 5.102 / 2. 5.102 libswresample 0. 18.100 / 0. 18.100 libpostproc 52. 3.100 / 52. 3.100 Hyper fast Audio and Video encoder usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

................. ....... ....

#C.how to analyze ffmpeg info:

if you compile ffmpeg many time , you will analyze how to check your version!

adb shell your devices and key "ffmpeg" , you will get some info like B-3.3. now we see it:

ffmpeg version 2.2.2 : your ffmpeg version

built on Jun 11 2014 13:17:13 with gcc 4.8 (GCC) ￣￣￣￣￣￣￣￣￣￣￣ ￣￣￣￣￣￣ you campile ffmpeg time gcc version

3.configuration: --prefix=/your/path/ffmpeg-2.2.2/android/arm --enable-shared --enable-static --enable-doc --enable-gpl --enable-libx264 --enable-pthreads --enable-ffmpeg --enable-ffplay --enable-ffprobe --enable-ffserver --enable-avdevice --enable-doc --enable-symver --enable-network --enable-debug --enable-protocol=tcp --enable-demuxer=rtsp --enable-cross-compile --cross-prefix=/your/path/Android/android-ndk-r9d/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/..................................... they are your configure , you can check what option you enable or disable in it!

#D.ffserver

if your enable ffserver, you can use ffserver on android! if you will use it,you will prepare ffserver.conf on android , Path on android is: /etc/

refence:http://ffmpeg.org/sample.html

start ffserver cmd is: ffserver

and if you hope use real time stream, your will key : ffserver & ffmpeg -i input http://localhost:port/feedname

#E.common command line ##ffmpeg: -i :input -re :copy intput file fps -vcodec copy :copy video copy -acodec copy :copy audio copy -loglever debug : show debug info

##ffserver : -d :show debug info

If your will find more command ,please follow ffmpeg.org: https://www.ffmpeg.org/

#F.Postscript

Known Issues 1.RTSP I/O 會顯示需要 pthread support , 但已經包入ffmpeg中卻仍顯示沒有support 2.http input realtim 會沒反應, 顯示200訪問成功 ,但connection=close 3.ffmpeg 輸入 .avi .flv 格式的時候會沒反應 4.ffserver real time 如果codec全部都copy 需要加上-re 否則會出錯,但再輸出成feed1.ffm時 嘗試訪問會顯示 coedec不相同的issues

#G.Lincense GNU Lesser General Public License (LGPL) version 2.1 or later , follow:https://www.ffmpeg.org/legal.html