我尝试去写一个自己的source插件，功能是显示雪花，写好以后make install到制定路径下出现了一个问题（如下）：
(gst-plugin-scanner:17505): GStreamer-WARNING **: Failed to load plugin '/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so': /usr/local/lib/gstreamer-1.0/libgstjpgsrc.so: undefined symbol: gst_jpgsrc_smpte
没有那样的组件或插件‘jpgsrc’

然后我运行ldd -r /usr/local/lib/gstreamer-1.0/libgstjpgsrc.so，结果如下

linux-vdso.so.1 => (0x00007ffe68bb3000)
libgstbase-1.0.so.0 => /usr/local/lib/libgstbase-1.0.so.0 (0x00007effa9fdf000)
libgstreamer-1.0.so.0 => /usr/local/lib/libgstreamer-1.0.so.0 (0x00007effa9cc4000)
libgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007effa9a73000)
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007effa976b000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007effa954d000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007effa9188000)
libgmodule-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007effa8f84000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007effa8c7e000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007effa8a76000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007effa8872000)
libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007effa866a000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007effa842c000)
/lib64/ld-linux-x86-64.so.2 (0x00007effaa441000)
undefined symbol: gst_jpgsrc_smpte (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)
undefined symbol: gst_video_frame_map (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)
undefined symbol: gst_video_chroma_resample_get_info (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)
undefined symbol: gst_video_colorimetry_from_string (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)
undefined symbol: gst_video_frame_unmap (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)
undefined symbol: gst_video_format_get_info (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)
undefined symbol: gst_video_chroma_resample_new (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)
undefined symbol: gst_video_chroma_resample_free (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)
undefined symbol: gst_video_info_from_caps (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)
undefined symbol: gst_video_format_get_palette (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)
undefined symbol: gst_video_info_init (/usr/local/lib/gstreamer-1.0/libgstjpgsrc.so)

我猜测是libgstvideo-1.0.so.0没有加入，但是我已经加了#include<gst/video/video.h>，编译的时候后也不会报错，只是在安装以后不能用，求教大神帮忙，在下不胜受恩感激

依赖问题没搞定。。