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manual hack cross compile variables

• http://www.matteomattei.com/how-to-cross-compile-curl-library-with-ssl-and-zlib-support/

libfaac

• http://www.audiocoding.com/faac.html

ffmpeg on dm365

• https://github.com/xhpohanka/ffmpeg-dm365

ffmpeg on RPi

• https://trac.ffmpeg.org/wiki/CompilationGuide/RaspberryPi

libuv

• sh autogen.sh
• ./configure --enable-shared --enable-static --host=arm-none-linux-gnueabi --prefix=/home/akagi201/libs-a5s

json-c

• ./configure --host=arm-none-linux-gnueabi --enable-static --enable-shared --prefix=/home/akagi201/libs-a5s

curl

• CPPFLAGS="-I/home/akagi201/libs-a5s/include" LDFLAGS="-L/home/akagi201/libs-a5s/lib" LIBS="-lssl -lcrypto" ./configure --host=arm-none-linux-gnueabi --enable-static --with-ssl --with-zlib --prefix=/home/akagi201/libs-a5s
• AR=arm-none-linux-gnueabi-ar AS=arm-none-linux-gnueabi-as LD=arm-none-linux-gnueabi-ld RANLIB=arm-none-linux-gnueabi-ranlib CC=arm-none-linux-gnueabi-gcc CM=arm-none-linux-gnueabi-nm CPPFLAGS="-I/home/akagi201/libs-a5s/include" LDFLAGS="-L/home/akagi201/libs-a5s/lib" LIBS="-lssl -lcrypto" ./configure --host=arm-none-linux-gnueabi --target=arm-none-linux-gnueabi --enable-static --with-ssl --with-zlib --prefix=/home/akagi201/libs-a5s ssl support failed.

libaacplus

• https://trac.ffmpeg.org/wiki/How%20to%20quickly%20compile%20libaacplus
• ./autogen.sh --with-parameter-expansion-string-replace-capable-shell=/bin/bash --host=arm_v5t_le-unknown-linux-uclibceabi --enable-static --prefix=/home/akagi201/libs-dm365
• ./autogen.sh --with-parameter-expansion-string-replace-capable-shell=/bin/bash --host=arm-none-linux-gnueabi --enable-static --enable-shared --prefix=/home/akagi201/libs-a5s

libx264

• http://www.videolan.org/developers/x264.html ./configure --host=arm_v5t_le-unknown-linux-uclibceabi --enable-static --cross-prefix=arm_v5t_le-unknown-linux-uclibceabi- --prefix=/home/akagi201/libs-dm365

alsa-lib

• ftp://ftp.alsa-project.org/pub/lib/alsa-lib-1.0.28.tar.bz2

LONG_BIT definition appears wrong for platform (bad gcc/glibc config?).

• failed.

zlib

• CC=arm_v5t_le-unknown-linux-uclibceabi-gcc ./configure --prefix=/home/akagi201/libs-dm365

openssl

• ./Configure --cross-compile-prefix=arm_v5t_le-unknown-linux-uclibceabi- linux-elf no-asm no-idea no-mdc2 no-rc5 --prefix=/home/akagi201/libs-dm365

librtmp

• git clone git://git.ffmpeg.org/rtmpdump
• 修改makefile, LIB_OPENSSL=-lssl -lcrypto -ldl $(LIBZ)
• 修改makefile, prefix?=/usr/local
• cd librtmp
• make CROSS_COMPILE=arm_v5t_le-unknown-linux-uclibceabi- INC="-I/home/akagi201/libs-dm365/include" XLDFLAGS="-L/home/akagi201/libs-dm365/lib" prefix="/home/akagi201/libs-dm365
• make install prefix="/home/akagi201/libs-dm365
• http://stream-recorder.com/forum/rtmpdump-do-compile-source-code-linux-like-t4229p2.html
• http://hi.baidu.com/newdreamllc/item/3be0780d186f0e7abfe97ea4
• http://www.cnblogs.com/nicebear/archive/2011/05/14/2046198.html
• https://github.com/rongyi/note/blob/master/pkg-config.org
• http://www.chenjunlu.com/2011/03/understanding-pkg-config-tool/
• http://blog.csdn.net/wfqxx/article/details/5507811
• http://blog.svnlabs.com/ffmpeg-error-librtmp-not-found/#.VCfAnSmSzsg
• http://sinclairmediatech.com/building-ffmpeg-for-adobe-media-server-akamai-auth/

ffmpeg

• ./configure --enable-cross-compile --cross-prefix=arm_v5t_le-unknown-linux-uclibceabi- --arch=armel --target-os=linux --prefix=/home/akagi201/libs-dm365 --enable-gpl --enable-libx264 --enable-nonfree --enable-libaacplus --extra-cflags="-I/home/akagi201/libs-dm365/include" --extra-ldflags="-L/home/akagi201/libs-dm365/lib" --extra-libs=-ldl
• 精简编译: ./configure --enable-cross-compile --cross-prefix=arm_v5t_le-unknown-linux-uclibceabi- --arch=armel --target-os=linux --prefix=/home/akagi201/libs-dm365 --enable-static --enable-shared --extra-cflags="-I/home/akagi201/libs-dm365/include" --extra-ldflags="-L/home/akagi201/libs-dm365/lib" --extra-libs=-ldl
• WARNING: arm-none-linux-gnueabi-pkg-config not found, library detection may fail.
• 手动修改config.mk中LDFLAG, 添加-lrtmp -lssl -lcrypto -lz
• http://blog.csdn.net/glcdw/article/details/7558303
• 注释掉了下面部分, 否则编译不通过.

static av_always_inline av_const float fminf(float x, float y)
{
    //Note, the NaN special case is needed for C spec compliance, it should be
    //optimized away if the users compiler is configured to assume no NaN
    return x > y ? y : (x == x ? x : y);
}

• https://trac.ffmpeg.org/wiki/CompilationGuide/Generic
• https://github.com/OnlyInAmerica/FFmpeg-Android/blob/master/README.md

dlopen

• https://gist.github.com/kwk/3595733