我正在尝试交叉编译GStreamer。版本是1.2.3。主机PC的操作系统是x86 linux,而目标系统的操作系统是MIPSEL linux操作系统。
我成功编译了目标设备的gstreamer和插件。并且gst-launch-1.0
可以执行。所以我尝试使用基本插件libgstvideotestsrc。但它没有用。所以我运行```gst-inspect-1.0'来检查插件,然后我发现结果如下。
# gst-inspect-1.0 -b
Blacklisted files:
libgstinterlace.so
libgstfbdevsink.so
libgstgeometrictransform.so
libgstmultifile.so
libgstencodebin.so
libgstfestival.so
libgstlevel.so
libgstdvdspu.so
libgstauparse.so
libgsty4menc.so
libgstvideofilter.so
libgstvideoscale.so
libgstaccurip.so
libgstvideoconvert.so
libgstaudioparsers.so
libgsttcp.so
libgstvolume.so
libgstcoreelements.so
libgstmpegtsdemux.so
libgstid3tag.so
libgstadpcmdec.so
libgstmfc.so
libgstrtpmanager.so
libgstaudiotestsrc.so
libgstdeinterlace.so
libgstdebug.so
libgstplayback.so
libgstspeed.so
libgstasfmux.so
libgsticydemux.so
libgstmpegpsdemux.so
libgstalaw.so
libgstwavparse.so
libgstpnm.so
libgstnavigationtest.so
libgstcamerabin2.so
libgstsdpelem.so
libgstisomp4.so
libgstliveadder.so
libgstmpegtsmux.so
libgstautodetect.so
libgstmultipart.so
libgstvideofiltersbad.so
libgstaudioresample.so
libgstautoconvert.so
libgstdvbsuboverlay.so
libgstid3demux.so
libgstvideobox.so
libgstgio.so
libgstdtmf.so
libgstremovesilence.so
libgstreplaygain.so
libgstaudioconvert.so
libgstcutter.so
libgstgaudieffects.so
libgstdvb.so
libgstaudiovisualizers.so
libgstudp.so
libgstimagefreeze.so
libgstadder.so
libgstpcapparse.so
libgstmxf.so
libgstshapewipe.so
libgstgdp.so
libgstwavenc.so
libgstshm.so
libgstflv.so
libgstfreeverb.so
libgstoss4audio.so
libgstsubenc.so
libgstaudiorate.so
libgstinter.so
libgsttypefindfunctions.so
libgstvideorate.so
libgstrtp.so
libgstcoloreffects.so
libgstmpegpsmux.so
libgstivtc.so
libgstjpegformat.so
libgstsmpte.so
libgstalphacolor.so
libgstsubparse.so
libgstaudiofxbad.so
libgstvideomixer.so
libgstmulaw.so
libgstdebugutilsbad.so
libgsteffectv.so
libgstfieldanalysis.so
libgstadpcmenc.so
libgstrawparse.so
libgstavi.so
libgstdataurisrc.so
libgstapetag.so
libgstinterleave.so
libgstmidi.so
libgstrtsp.so
libgstapp.so
libgstalpha.so
libgstaudiofx.so
libgstvideocrop.so
libgstvideotestsrc.so
libgstspectrum.so
libgstbayer.so
libgstaiff.so
libgstsegmentclip.so
libgstfrei0r.so
Total count: 106 blacklisted files
我想知道“列入黑名单”的含义以及我应该如何解决这个问题。如果您需要多个信息来解决此问题,请与我们联系。
这是我为GStreamer构建的配置。
#PACKAGES: Name + version
export GST_PLUGIN_BASE="gst-plugins-base-1.2.3"
export GST_PLUGIN_GOOD="gst-plugins-good-1.2.3"
export GST_PLUGIN_BAD="gst-plugins-bad-1.2.3"
#HOST & Build configuration.
export HOST="mips-linux-gnu"
export BUILD="i686-pc-linux-gnu"
#Set path for file system.
export BUILD_PATH="~~~~~"
export ROOTFS_PATH="${BUILD_PATH}/rootfs"
export MIPS_LIB="~~~"
export INSTALL_PATH="${ROOTFS_PATH}/usr"
export INSTALL_PATH_LIB="${ROOTFS_PATH}/usr/lib"
#Compiler options
export PATH="${PATH}:${INSTALL_PATH}/bin"
export CFLAGS="-I${ROOTFS_PATH}/usr/include -I${ROOTFS_PATH}/usr/include/glib-2.0 -I${ROOTFS_PATH}/usr/lib/glib-2.0/include -I${ROOTFS_PATH}/usr/include/gstreamer-1.0 -I${ROOTFS_PATH}/usr/include/gio-unix-2.0 -mno-compact-eh -EL"
export CPPFLAGS="-I${ROOTFS_PATH}/usr/include -I${ROOTFS_PATH}/usr/include/glib-2.0 -I${ROOTFS_PATH}/usr/lib/glib-2.0/include -I${ROOTFS_PATH}/usr/include/gstreamer-1.0 -I${ROOTFS_PATH}/usr/include/gio-unix-2.0 -mno-compact-eh -EL"
export CXXFLAGS=$CPPFLAGS
export GST_CHECK_CFLAGS="-I${ROOTFS_PATH}/usr/include -I${ROOTFS_PATH}/usr/include/glib-2.0/include"
export PKG_CONFIG="/usr/bin/pkg-config"
export PKG_CONFIG_PATH="${PATH}:${ROOTFS_PATH}/lib/pkgconfig/:${ROOTFS_PATH}/usr/lib/pkgconfig/:${ROOTFS_PATH}/usr/local/lib/pkgconfig/:/usr/lib/pkgconfig:/usr/local/lib/pkgconfig:/lib/pkgconfig"
export LD_LIBRARY_PATH="/lib:/usr/local/lib"
export CC="~~~mips-linux-gnu-gcc -EL"
export CXX="~~~mips-linux-gnu-g++ -EL"
cd ${BUILD_PATH}
#GStreamer 1.2.3
#http://greenday96.egloos.com/viewer/4627046
wget http://gstreamer.freedesktop.org/src/gstreamer/$GSTREAMER.tar.xz
tar xf $GSTREAMER.tar.xz
cd $GSTREAMER
./configure --prefix=$INSTALL_PATH --build=$BUILD --host=$HOST --disable-nls --disable-static
sudo make
sudo make install
cd ..
#gst-plugin-base 1.2.3
wget http://gstreamer.freedesktop.org/src/gst-plugins-base/$GST_PLUGIN_BASE.tar.xz
tar xf $GST_PLUGIN_BASE.tar.xz
cd $GST_PLUGIN_BASE
./configure --prefix=$INSTALL_PATH --build=$BUILD --host=$HOST --disable-nls --disable-static --disable-examples --disable-pango
sudo make
sudo make install
cd ..
# gst-plugin-good-1.2.3
# http://gstreamer.freedesktop.org/src/gst-plugins-good/gst-plugins-good-1.2.3.tar.xz
wget http://gstreamer.freedesktop.org/src/gst-plugins-good/$GST_PLUGIN_GOOD.tar.xz
tar xf $GST_PLUGIN_GOOD.tar.xz
cd $GST_PLUGIN_GOOD
./configure --prefix=$INSTALL_PATH --build=$BUILD --host=$HOST --disable-nls --disable-static --disable-valgrind --disable-equalizer --disable-flx --disable-goom --disable-goom2k1 --disable-matroska --disable-monoscope --disable-oss --disable-cairo --disable-gdk_pixbuf --disable-soup --disable-libpng --disable-gst_v4l2
sudo make
sudo make install
cd ..
# gst-plugin-bad-1.2.3
# http://gstreamer.freedesktop.org/src/gst-plugins-bad/gst-plugins-bad-1.2.3.tar.xz
wget http://gstreamer.freedesktop.org/src/gst-plugins-bad/$GST_PLUGIN_BAD.tar.xz
tar xf $GST_PLUGIN_BAD.tar.xz
cd $GST_PLUGIN_BAD
./configure --prefix=$INSTALL_PATH --build=$BUILD --host=$HOST --disable-nls --disable-static --disable-y4m --disable-siren --disable-librfb --disable-yadif --disable-smooth --disable-videoparsers --disable-decklink --disable-valgrind --disable-directfb --disable-examples
sudo make
sudo make install
cd ..
如果你想知道为什么这些插件被列入黑名单,你可以删除“registry.dat”(运行locate查找其位置),然后重新运行gst-inspect,再次检查插件以及将它们列入黑名单的原因应该打印。
他们被列入黑名单可能有几个原因,如果你这样做,你应该找到它们。
或者,您也可以运行gst-inspect location_of_the_dynamic_library.so
我找到了原因。它是GLIB,而不是GStreamer。
要为mipsel构建GLIB,我应该设置glib_cv_uscore=no
。这取决于您的嵌入式设备。因此,请检查目标硬件的CPU规格。所以我为GLIB制作了如下的构建脚本。
#Glib 2.42.1
wget ftp://ftp.gnome.org/pub/gnome/sources/glib/2.42/$GLIB.tar.xz
tar xf $GLIB.tar.xz
cd $GLIB
#Build for MIPS
echo "ac_cv_func_posix_getgrgid_r=yes" > mips.cache
echo "ac_cv_func_posix_getpwuid_r=yes" >> mips.cache
echo "glib_cv_stack_grows=no" >> mips.cache
echo "glib_cv_uscore=no" >>mips.cache
./configure --prefix=$INSTALL_PATH --host=$HOST --cache-file=mips.cache --build=$BUILD
make
make install
cd ..
我从here得到了线索。
对于gstreamer 1.8 gst-inspect-1.0需要使用额外的GST_DEBUG = 4 env var进行启动以查看详细原因(在我的情况下不兼容的版本):
GST_DEBUG=4 gst-inspect-1.0 /usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgst_some_plugin.so
...15-20 lines with non-interesting details...
0:00:00.035553207 4287 0x29f93c00 WARN GST_PLUGIN_LOADING gstplugin.c:485:gst_plugin_register_func: plugin "/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgst_some_plugin.so" has incompatible version (plugin: 1.10, gst: 1,8), not loading
Could not load plugin file: File "/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgst_some_plugin.so" appears to be a GStreamer plugin, but it failed to initialize