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how add ffmpeg lib into SDK with yocto

Question asked by 徐 生 on Dec 20, 2018
Latest reply on Dec 26, 2018 by 徐 生

Hi,everyone.I'm using ffmpeg with yocto in imx6dl BSP.Everything is ok,and ,in the rootfs,also inclule /usr/sbin/ffmpeg /lib/libavformat.so ...... But,I want to add these lib files and header files into SDK ,so I can cross compile my application in the host machine。so,anyone can tell me,how could i add files such as libavcodec libavformat and header files into SDK.thank you so much!

 

This is  ffmpeg_3.0.bb:

 

SUMMARY = "A complete, cross-platform solution to record, convert and stream audio and video."
DESCRIPTION = "FFmpeg is the leading multimedia framework, able to decode, encode, transcode, \
mux, demux, stream, filter and play pretty much anything that humans and machines \
have created. It supports the most obscure ancient formats up to the cutting edge."
HOMEPAGE = "https://www.ffmpeg.org/"
SECTION = "libs"

LICENSE = "GPLv2+"
LICENSE_FLAGS = "commercial"

LIC_FILES_CHKSUM = "file://COPYING.GPLv2;md5=b234ee4d69f5fce4486a80fdaf4a4263 \
file://COPYING.GPLv3;md5=d32239bcb673463ab874e80d47fae504 \
file://COPYING.LGPLv2.1;md5=bd7a443320af8c812e4c18d1b79df004 \
file://COPYING.LGPLv3;md5=e6a600fd5e1d9cbde2d983680233ad02"

SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz"

SRC_URI[md5sum] = "ef9b6634bb7c920efc940b4d55adf7b2"
SRC_URI[sha256sum] = "12f32cee41c74435f608c30793fd616bdf53467bb513278e273e135a4c58e470"

# Build fails when thumb is enabled: https://bugzilla.yoctoproject.org/show_bug.cgi?id=7717
ARM_INSTRUCTION_SET = "arm"

# Should be API compatible with libav (which was a fork of ffmpeg)
# libpostproc was previously packaged from a separate recipe
PROVIDES = "libav libpostproc"

DEPENDS = "x264 alsa-lib zlib libogg yasm-native"

inherit autotools pkgconfig

PACKAGECONFIG ??= "avdevice avfilter avcodec avformat swresample swscale postproc \
bzlib gpl lzma theora x264 \
${@bb.utils.contains('DISTRO_FEATURES', 'x11', 'x11 xv', '', d)}"

# libraries to build in addition to avutil
PACKAGECONFIG[avdevice] = "--enable-avdevice,--disable-avdevice"
PACKAGECONFIG[avfilter] = "--enable-avfilter,--disable-avfilter"
PACKAGECONFIG[avcodec] = "--enable-avcodec,--disable-avcodec"
PACKAGECONFIG[avformat] = "--enable-avformat,--disable-avformat"
PACKAGECONFIG[swresample] = "--enable-swresample,--disable-swresample"
PACKAGECONFIG[swscale] = "--enable-swscale,--disable-swscale"
PACKAGECONFIG[postproc] = "--enable-postproc,--disable-postproc"
PACKAGECONFIG[avresample] = "--enable-avresample,--disable-avresample"

# features to support
PACKAGECONFIG[bzlib] = "--enable-bzlib,--disable-bzlib,bzip2"
PACKAGECONFIG[faac] = "--enable-libfaac,--disable-libfaac,faac"
PACKAGECONFIG[gpl] = "--enable-gpl,--disable-gpl"
PACKAGECONFIG[gsm] = "--enable-libgsm,--disable-libgsm,libgsm"
PACKAGECONFIG[jack] = "--enable-indev=jack,--disable-indev=jack,jack"
PACKAGECONFIG[libvorbis] = "--enable-libvorbis,--disable-libvorbis,libvorbis"
PACKAGECONFIG[lzma] = "--enable-lzma,--disable-lzma,xz"
PACKAGECONFIG[mp3lame] = "--enable-libmp3lame,--disable-libmp3lame,lame"
PACKAGECONFIG[openssl] = "--enable-openssl,--disable-openssl,openssl"
PACKAGECONFIG[schroedinger] = "--enable-libschroedinger,--disable-libschroedinger,schroedinger"
PACKAGECONFIG[speex] = "--enable-libspeex,--disable-libspeex,speex"
PACKAGECONFIG[theora] = "--enable-libtheora,--disable-libtheora,libtheora"
PACKAGECONFIG[vaapi] = "--enable-vaapi,--disable-vaapi,libva"
PACKAGECONFIG[vpx] = "--enable-libvpx,--disable-libvpx,libvpx"
PACKAGECONFIG[x11] = "--enable-x11grab,--disable-x11grab,virtual/libx11 libxfixes libxext xproto virtual/libsdl"
PACKAGECONFIG[x264] = "--enable-libx264,--disable-libx264,x264"
PACKAGECONFIG[xv] = "--enable-outdev=xv,--disable-outdev=xv,libxv"

# Check codecs that require --enable-nonfree
USE_NONFREE = "${@bb.utils.contains_any('PACKAGECONFIG', [ 'faac', 'openssl' ], 'yes', '', d)}"

EXTRA_OECONF = " \
--disable-stripping \
--enable-pic \
--enable-shared \
--enable-pthreads \
${@bb.utils.contains('USE_NONFREE', 'yes', '--enable-nonfree', '', d)} \
\
--cross-prefix=${TARGET_PREFIX} \
\
--ld="${CCLD}" \
--arch=${TARGET_ARCH} \
--target-os="linux" \
--enable-cross-compile \
--extra-cflags="${TARGET_CFLAGS} ${HOST_CC_ARCH}${TOOLCHAIN_OPTIONS}" \
--extra-ldflags="${TARGET_LDFLAGS}" \
--sysroot="${STAGING_DIR_TARGET}" \
--enable-hardcoded-tables \
${EXTRA_FFCONF} \
--libdir=${libdir} \
--shlibdir=${libdir} \
--datadir=${datadir}/ffmpeg \
"

do_configure() {
${S}/configure ${EXTRA_OECONF}
}

PACKAGES_DYNAMIC += "^lib(av(codec|device|filter|format|util|resample)|swscale|swresample|postproc).*"

# ffmpeg disables PIC on some platforms (e.g. x86-32)
INSANE_SKIP_${MLPREFIX}libavcodec = "textrel"
INSANE_SKIP_${MLPREFIX}libavdevice = "textrel"
INSANE_SKIP_${MLPREFIX}libavfilter = "textrel"
INSANE_SKIP_${MLPREFIX}libavformat = "textrel"
INSANE_SKIP_${MLPREFIX}libavutil = "textrel"
INSANE_SKIP_${MLPREFIX}libavresample = "textrel"
INSANE_SKIP_${MLPREFIX}libswscale = "textrel"
INSANE_SKIP_${MLPREFIX}libswresample = "textrel"
INSANE_SKIP_${MLPREFIX}libpostproc = "textrel"

python populate_packages_prepend() {
av_libdir = d.expand('${libdir}')
av_pkgconfig = d.expand('${libdir}/pkgconfig')

# Runtime package
do_split_packages(d, av_libdir, '^lib(.*)\.so\..*',
output_pattern='lib%s',
description='libav %s library',
extra_depends='',
prepend=True,
allow_links=True)

# Development packages (-dev, -staticdev)
do_split_packages(d, av_libdir, '^lib(.*)\.so$',
output_pattern='lib%s-dev',
description='libav %s development package',
extra_depends='${PN}-dev',
prepend=True,
allow_links=True)
do_split_packages(d, av_pkgconfig, '^lib(.*)\.pc$',
output_pattern='lib%s-dev',
description='libav %s development package',
extra_depends='${PN}-dev',
prepend=True)
do_split_packages(d, av_libdir, '^lib(.*)\.a$',
output_pattern='lib%s-staticdev',
description='libav %s development package - static library',
extra_depends='${PN}-dev',
prepend=True,
allow_links=True)

}
BBCLASSEXTEND = "native nativesdk"

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