如何正确安装开源 uEye 应用程序缺少的库
How to correctly install missing libs for open source uEye application
我需要构建 iDS
的 SimpleStreamer 应用程序
我有以下结构的存档：
.
├── bin
│ └── ueye_streamer
├── doc
. .
. .
│ └── ueye__stream_8h_source.html
├── include
│ └── ueye_stream.h
├── lib
│ ├── ffmpeg
│ │ ├── libavcodec.so
│ │ ├── libavcodec.so.56
│ │ ├── libavcodec.so.56.60.100
│ │ ├── libavdevice.so
│ │ ├── libavdevice.so.56
│ │ ├── libavdevice.so.56.4.100
│ │ ├── libavfilter.so
│ │ ├── libavfilter.so.5
│ │ ├── libavfilter.so.5.40.101
│ │ ├── libavformat.so
│ │ ├── libavformat.so.56
│ │ ├── libavformat.so.56.40.101
│ │ ├── libavutil.so
│ │ ├── libavutil.so.54
│ │ ├── libavutil.so.54.31.100
│ │ ├── libswresample.so
│ │ ├── libswresample.so.1
│ │ ├── libswresample.so.1.2.101
│ │ ├── libswscale.so
│ │ ├── libswscale.so.3
│ │ └── libswscale.so.3.1.101
│ ├── libueye_stream.so -> libueye_stream.so.2
│ ├── libueye_stream.so.2 -> libueye_stream.so.2.0
│ ├── libueye_stream.so.2.0
│ └── live555
│ ├── libBasicUsageEnvironment.so
│ ├── libBasicUsageEnvironment.so.1
│ ├── libBasicUsageEnvironment.so.1.0.0
│ ├── libgroupsock.so
│ ├── libgroupsock.so.8
│ ├── libgroupsock.so.8.1.0
│ ├── libliveMedia.so
│ ├── libliveMedia.so.52
│ ├── libliveMedia.so.52.0.4
│ ├── libUsageEnvironment.so
│ ├── libUsageEnvironment.so.3
│ └── libUsageEnvironment.so.3.1.0
├── licenses
│ ├── thirdparty_copyrights.txt
│ ├── thirdparty_licenses.txt
│ └── thirdparty_rights.txt
├── README.txt
├── src
│ ├── SimpleStreamer
│ │ ├── build
│ │ ├── CMakeLists.txt
│ │ ├── libueye_stream.so
│ │ ├── libueye_stream.so.2.0
│ │ ├── main.cpp
│ │ └── ueye_stream.h
│ └── uEyeStreamer
│ ├── build
│ ├── CMakeLists.txt
│ ├── res
│ ├── src
│ ├── streamer.qrc
│ ├── streamer.rc.in
│ └── uEye_Streamer.ico
└── ueye_streamer.sh
这是 SimpleStreamer 的 CMakeLists.txt 的内容：
project(SimpleStream)
cmake_minimum_required(VERSION 2.8)
aux_source_directory(. SRC_LIST)
add_executable(${PROJECT_NAME} ${SRC_LIST})
target_link_libraries(${PROJECT_NAME} ueye_api ueye_stream)
我将项目的通用 lib 和 include 文件夹复制到系统范围 lib 和 include：
sudo cp include/ueye_stream.h /usr/local/include/
sudo cp lib/libueye_stream.so.2.0 /usr/local/lib/
我创建符号链接的方式与它在 /usr/local/lib 和项目的 lib 中的方式相同：
lrwxrwxrwx 1 olga olga 19 июн 21 2016 libueye_stream.so -> libueye_stream.so.2
lrwxrwxrwx 1 olga olga 21 июн 21 2016 libueye_stream.so.2 -> libueye_stream.so.2.0
-rwxr-xr-x 1 olga olga 151018 июн 21 2016 libueye_stream.so.2.0
我做了 sudo ldconfig 没有任何错误。
我在 SimpleStreamer 的 build 目录中做了 cmake ..：
-- Configuring done
-- Generating done
-- Build files have been written to: /home/olga/camera/ueye/ueye_stream/ueye_stream_x64/src/SimpleStreamer/build
但是当我继续 make 阶段时，我得到了很多错误：
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/src/SimpleStreamer/build$ make
[ 50%] Linking CXX executable SimpleStream
/usr/bin/ld: warning: libliveMedia.so.52, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libgroupsock.so.8, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libBasicUsageEnvironment.so.1, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libUsageEnvironment.so.3, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libavcodec.so.56, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libavfilter.so.5, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libavutil.so.54, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libswscale.so.3, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libavformat.so.56, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::doStopGettingFrames()'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_decode_video2@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isServerMediaSession() const'
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::afterGetting(FramedSource*)'
//usr/local/lib/libueye_stream.so: undefined reference to `BasicUsageEnvironment::createNew(TaskScheduler&)'
//usr/local/lib/libueye_stream.so: undefined reference to `avpicture_get_size@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::setStreamSourceDuration(FramedSource*, double, unsigned long&)'
//usr/local/lib/libueye_stream.so: undefined reference to `av_free@LIBAVUTIL_54'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `ServerMediaSession::addSubsession(ServerMediaSubsession*)'
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::~FramedSource()'
//usr/local/lib/libueye_stream.so: undefined reference to `typeinfo for OnDemandServerMediaSubsession'
//usr/local/lib/libueye_stream.so: undefined reference to `av_frame_free@LIBAVUTIL_54'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::seekStream(unsigned int, void*, char*&, char*&)'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_get_context_defaults3@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::startStream(unsigned int, void*, void (*)(void*), void*, unsigned short&, unsigned int&, void (*)(void*, unsigned char), void*)'
//usr/local/lib/libueye_stream.so: undefined reference to `ServerMediaSubsession::testScaleFactor(float&)'
//usr/local/lib/libueye_stream.so: undefined reference to `JPEGVideoSource::JPEGVideoSource(UsageEnvironment&)'
//usr/local/lib/libueye_stream.so: undefined reference to `JPEGVideoSource::~JPEGVideoSource()'
//usr/local/lib/libueye_stream.so: undefined reference to `H264VideoRTPSink::createNew(UsageEnvironment&, Groupsock*, unsigned char)'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isRTSPClient() const'
//usr/local/lib/libueye_stream.so: undefined reference to `RTSPServer::rtspURL(ServerMediaSession const*, int) const'
//usr/local/lib/libueye_stream.so: undefined reference to `GenericMediaServer::addServerMediaSession(ServerMediaSession*)'
//usr/local/lib/libueye_stream.so: undefined reference to `sws_freeContext@LIBSWSCALE_3'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::getCurrentNPT(void*)'
//usr/local/lib/libueye_stream.so: undefined reference to `JPEGVideoSource::restartInterval()'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isRTPSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::deleteStream(unsigned int, void*&)'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::getRTPSinkandRTCP(void*, RTPSink const*&, RTCPInstance const*&)'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isDVVideoStreamFramer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `Port::Port(unsigned short)'
//usr/local/lib/libueye_stream.so: undefined reference to `av_new_packet@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::getStreamParameters(unsigned int, unsigned int, Port const&, Port const&, int, unsigned char, unsigned char, unsigned int&, unsigned char&, unsigned char&, Port&, Port&, void*&)'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isMPEG1or2VideoStreamFramer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::sdpLines()'
//usr/local/lib/libueye_stream.so: undefined reference to `BasicTaskScheduler::createNew(unsigned int)'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::seekStreamSource(FramedSource*, double&, double, unsigned long&)'
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::maxFrameSize() const'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_open2@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::~OnDemandServerMediaSubsession()'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isAMRAudioSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isH265VideoStreamFramer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::nullSeekStream(unsigned int, void*, double, unsigned long&)'
//usr/local/lib/libueye_stream.so: undefined reference to `av_frame_alloc@LIBAVUTIL_54'
//usr/local/lib/libueye_stream.so: undefined reference to `avpicture_fill@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::OnDemandServerMediaSubsession(UsageEnvironment&, unsigned char, unsigned short, unsigned char)'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::createGroupsock(in_addr const&, Port)'
//usr/local/lib/libueye_stream.so: undefined reference to `ServerMediaSubsession::getAbsoluteTimeRange(char*&, char*&) const'
//usr/local/lib/libueye_stream.so: undefined reference to `ServerMediaSession::createNew(UsageEnvironment&, char const*, char const*, char const*, unsigned char, char const*)'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isRTCPInstance() const'
//usr/local/lib/libueye_stream.so: undefined reference to `JPEGVideoRTPSink::createNew(UsageEnvironment&, Groupsock*)'
//usr/local/lib/libueye_stream.so: undefined reference to `GenericMediaServer::deleteServerMediaSession(ServerMediaSession*)'
//usr/local/lib/libueye_stream.so: undefined reference to `av_free_packet@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `ServerMediaSubsession::duration() const'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isRTSPServer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `av_register_all@LIBAVFORMAT_56'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::getAttributes() const'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_encode_video2@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `avformat_new_stream@LIBAVFORMAT_56'
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::isFramedSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `H264VideoStreamDiscreteFramer::createNew(UsageEnvironment&, FramedSource*)'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isSink() const'
//usr/local/lib/libueye_stream.so: undefined reference to `typeinfo for JPEGVideoSource'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::setStreamSourceScale(FramedSource*, float)'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::seekStream(unsigned int, void*, double&, double, unsigned long&)'
//usr/local/lib/libueye_stream.so: undefined reference to `OutPacketBuffer::maxSize'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::close(Medium*)'
//usr/local/lib/libueye_stream.so: undefined reference to `UsageEnvironment::reclaim()'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::MIMEtype() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::getAuxSDPLine(RTPSink*, FramedSource*)'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_close@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `av_init_packet@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::closeStreamSource(FramedSource*)'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isMPEG4VideoStreamFramer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::pauseStream(unsigned int, void*)'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isJPEGVideoSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_find_decoder@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `av_malloc@LIBAVUTIL_54'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isMediaSession() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::createRTCP(Groupsock*, unsigned int, unsigned char const*, RTPSink*)'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_alloc_context3@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_find_encoder@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::setStreamScale(unsigned int, void*, float)'
//usr/local/lib/libueye_stream.so: undefined reference to `sws_getContext@LIBSWSCALE_3'
//usr/local/lib/libueye_stream.so: undefined reference to `JPEGVideoSource::isJPEGVideoSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isH264VideoStreamFramer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::getStreamSource(void*)'
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::FramedSource(UsageEnvironment&)'
//usr/local/lib/libueye_stream.so: undefined reference to `av_log_set_level@LIBAVUTIL_54'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::seekStreamSource(FramedSource*, char*&, char*&)'
//usr/local/lib/libueye_stream.so: undefined reference to `RTSPServer::createNew(UsageEnvironment&, Port, UserAuthenticationDatabase*, unsigned int)'
//usr/local/lib/libueye_stream.so: undefined reference to `typeinfo for FramedSource'
//usr/local/lib/libueye_stream.so: undefined reference to `sws_scale@LIBSWSCALE_3'
collect2: error: ld returned 1 exit status
CMakeFiles/SimpleStream.dir/build.make:94: recipe for target 'SimpleStream' failed
make[2]: *** [SimpleStream] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/SimpleStream.dir/all' failed
make[1]: *** [CMakeFiles/SimpleStream.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2
在 README.md 项目的根目录中，我对头文件和库的安装一无所知...
更新
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/lib$ nm -C -u libwx_baseu-2.8.so libueye_stream.so.2.0
nm: 'libwx_baseu-2.8.so': No such file
libueye_stream.so.2.0:
U avcodec_alloc_context3@@LIBAVCODEC_56
.
.
系统版本：
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/lib$ lsb_release -a
\No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.2 LTS
Release: 18.04
Codename: bionic
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/lib$ uname -r
4.18.0-16-generic
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/lib$
ldd 的结果：
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/lib$ ldd libueye_stream.so.2.0
linux-vdso.so.1 (0x00007fff56183000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f215cbb5000)
libliveMedia.so.52 => not found
libgroupsock.so.8 => not found
libBasicUsageEnvironment.so.1 => not found
libUsageEnvironment.so.3 => not found
libavcodec.so.56 => not found
libavfilter.so.5 => not found
libavutil.so.54 => not found
libswscale.so.3 => not found
libavformat.so.56 => not found
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f215c82c000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f215c48e000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f215c276000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f215be85000)
/lib64/ld-linux-x86-64.so.2 (0x00007f215cfee000)
好的，在阅读了一些理论性的material和"Deduction Thinking"(c)之后，我找到了解决方案：
- 我创建了文件夹
/usr/local/lib/ueye_olga
- 我将所有必要的库从项目的根目录
lib 及其子文件夹复制到 ueye_olga，请参阅下面的输出。
- 我删除了不需要的文件，并用链接替换了它们（参见下面的解释）
- 我创建了
/etc/ld.so.conf.d/ueye_olga.conf with path to the/usr/local/lib/ueye_olga`，见下文。
- 我做了
sudo ldconfig
- 我检查了
libueye_stream.so 是否正确链接（见下文）
- 我需要移动
libueye_stream.so 和它的链接文件夹，我不知道为什么，请参阅下面的错误。
- 再次
sudo ldconfig
make 正常工作
/usr/local/lib/ueye_olga`:
olga@olga-MS-7758:/usr/local/lib$ ls -la ueye_olga/
total 15984
drwxr-xr-x 2 root root 4096 мар 22 15:13 .
drwxr-xr-x 7 root root 12288 мар 22 15:27 ..
lrwxrwxrwx 1 root root 16 мар 22 15:02 libavcodec.so -> libavcodec.so.56
lrwxrwxrwx 1 root root 23 мар 22 15:02 libavcodec.so.56 -> libavcodec.so.56.60.100
-rwxr-xr-x 1 root root 12294344 мар 22 14:35 libavcodec.so.56.60.100
lrwxrwxrwx 1 root root 17 мар 22 15:04 libavdevice.so -> libavdevice.so.56
lrwxrwxrwx 1 root root 23 мар 22 15:04 libavdevice.so.56 -> libavdevice.so.56.4.100
-rwxr-xr-x 1 root root 62384 мар 22 14:35 libavdevice.so.56.4.100
lrwxrwxrwx 1 root root 16 мар 22 15:05 libavfilter.so -> libavfilter.so.5
lrwxrwxrwx 1 root root 23 мар 22 15:04 libavfilter.so.5 -> libavfilter.so.5.40.101
-rwxr-xr-x 1 root root 129104 мар 22 14:35 libavfilter.so.5.40.101
lrwxrwxrwx 1 root root 17 мар 22 15:06 libavformat.so -> libavformat.so.56
lrwxrwxrwx 1 root root 24 мар 22 15:06 libavformat.so.56 -> libavformat.so.56.40.101
-rwxr-xr-x 1 root root 1152424 мар 22 14:35 libavformat.so.56.40.101
lrwxrwxrwx 1 root root 15 мар 22 15:07 libavutil.so -> libavutil.so.54
lrwxrwxrwx 1 root root 22 мар 22 15:07 libavutil.so.54 -> libavutil.so.54.31.100
-rwxr-xr-x 1 root root 336088 мар 22 14:35 libavutil.so.54.31.100
lrwxrwxrwx 1 root root 29 мар 22 15:11 libBasicUsageEnvironment.so -> libBasicUsageEnvironment.so.1
lrwxrwxrwx 1 root root 33 мар 22 15:10 libBasicUsageEnvironment.so.1 -> libBasicUsageEnvironment.so.1.0.0
-rw-r--r-- 1 root root 55839 мар 22 14:36 libBasicUsageEnvironment.so.1.0.0
lrwxrwxrwx 1 root root 17 мар 22 15:11 libgroupsock.so -> libgroupsock.so.8
lrwxrwxrwx 1 root root 21 мар 22 15:11 libgroupsock.so.8 -> libgroupsock.so.8.1.0
-rw-r--r-- 1 root root 74323 мар 22 14:36 libgroupsock.so.8.1.0
lrwxrwxrwx 1 root root 18 мар 22 15:12 libliveMedia.so -> libliveMedia.so.52
lrwxrwxrwx 1 root root 22 мар 22 15:12 libliveMedia.so.52 -> libliveMedia.so.52.0.4
-rw-r--r-- 1 root root 1395586 мар 22 14:36 libliveMedia.so.52.0.4
lrwxrwxrwx 1 root root 18 мар 22 15:12 libswresample.so -> libswresample.so.1
lrwxrwxrwx 1 root root 24 мар 22 15:12 libswresample.so.1 -> libswresample.so.1.2.101
-rwxr-xr-x 1 root root 108008 мар 22 14:35 libswresample.so.1.2.101
lrwxrwxrwx 1 root root 15 мар 22 15:13 libswscale.so -> libswscale.so.3
lrwxrwxrwx 1 root root 21 мар 22 15:13 libswscale.so.3 -> libswscale.so.3.1.101
-rwxr-xr-x 1 root root 549048 мар 22 14:35 libswscale.so.3.1.101
lrwxrwxrwx 1 root root 19 мар 22 14:12 libueye_stream.so -> libueye_stream.so.2
lrwxrwxrwx 1 root root 21 мар 22 14:11 libueye_stream.so.2 -> libueye_stream.so.2.0
-rwxr-xr-x 1 root root 151018 мар 22 14:29 libueye_stream.so.2.0
lrwxrwxrwx 1 root root 24 мар 22 15:13 libUsageEnvironment.so -> libUsageEnvironment.so.3
lrwxrwxrwx 1 root root 28 мар 22 15:13 libUsageEnvironment.so.3 -> libUsageEnvironment.so.3.1.0
-rw-r--r-- 1 root root 15809 мар 22 14:36 libUsageEnvironment.so.3.1.0
删除不需要的文件：
如果你不创建软链接，你会得到如下错误：
/sbin/ldconfig.real: /usr/local/lib/ueye_olga/libavcodec.so.56 is not
a symbolic link
原因：
As is typical with library modules libstdc could be installed as one
of several versions. Typically only one version is installed and the
other possible versions are represented as a symbolic link to the
installed version. A symbolic link is another name pointing to the
installed module. For example I have /usr/lib/libstdc++.so.6.0.10
installed. I also have /usr/liblibstdc++.so.6 as a symbolic link
pointing to /usr/lib/libstdc++.so.6.0.10 so you can access libstdc++
under either name.
摘自 here.
/etc/ld.so.conf.d/ueye_olga.conf:
olga@olga-MS-7758:/usr/local/lib$ cat /etc/ld.so.conf.d/ueye_olga.conf
/usr/local/lib/ueye_olga
正确链接ueye_stream：
olga@olga-MS-7758:/usr/local/lib$ ldd libueye_stream.so
linux-vdso.so.1 (0x00007ffe467a0000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fb6c8879000)
libliveMedia.so.52 => /usr/local/lib/ueye_olga/libliveMedia.so.52 (0x00007fb6c8565000)
libgroupsock.so.8 => /usr/local/lib/ueye_olga/libgroupsock.so.8 (0x00007fb6c834b000)
libBasicUsageEnvironment.so.1 => /usr/local/lib/ueye_olga/libBasicUsageEnvironment.so.1 (0x00007fb6c8141000)
libUsageEnvironment.so.3 => /usr/local/lib/ueye_olga/libUsageEnvironment.so.3 (0x00007fb6c7f3e000)
libavcodec.so.56 => /usr/local/lib/ueye_olga/libavcodec.so.56 (0x00007fb6c6ad1000)
libavfilter.so.5 => /usr/local/lib/ueye_olga/libavfilter.so.5 (0x00007fb6c68b2000)
libavutil.so.54 => /usr/local/lib/ueye_olga/libavutil.so.54 (0x00007fb6c664c000)
libswscale.so.3 => /usr/local/lib/ueye_olga/libswscale.so.3 (0x00007fb6c63be000)
libavformat.so.56 => /usr/local/lib/ueye_olga/libavformat.so.56 (0x00007fb6c60a5000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fb6c5d1c000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fb6c597e000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fb6c5766000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fb6c5375000)
/lib64/ld-linux-x86-64.so.2 (0x00007fb6c8cb2000)
libswresample.so.1 => /usr/local/lib/ueye_olga/libswresample.so.1 (0x00007fb6c515b000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fb6c4f3e000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fb6c4d36000)
不是，那个 libueye_stream.so 带软链接的移动到 /usr/local/lib.
make 成功:
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/src/SimpleStreamer/build$ make
[ 50%] Linking CXX executable SimpleStream
[100%] Built target SimpleStream
我需要构建 iDS
的 SimpleStreamer 应用程序我有以下结构的存档：
.
├── bin
│ └── ueye_streamer
├── doc
. .
. .
│ └── ueye__stream_8h_source.html
├── include
│ └── ueye_stream.h
├── lib
│ ├── ffmpeg
│ │ ├── libavcodec.so
│ │ ├── libavcodec.so.56
│ │ ├── libavcodec.so.56.60.100
│ │ ├── libavdevice.so
│ │ ├── libavdevice.so.56
│ │ ├── libavdevice.so.56.4.100
│ │ ├── libavfilter.so
│ │ ├── libavfilter.so.5
│ │ ├── libavfilter.so.5.40.101
│ │ ├── libavformat.so
│ │ ├── libavformat.so.56
│ │ ├── libavformat.so.56.40.101
│ │ ├── libavutil.so
│ │ ├── libavutil.so.54
│ │ ├── libavutil.so.54.31.100
│ │ ├── libswresample.so
│ │ ├── libswresample.so.1
│ │ ├── libswresample.so.1.2.101
│ │ ├── libswscale.so
│ │ ├── libswscale.so.3
│ │ └── libswscale.so.3.1.101
│ ├── libueye_stream.so -> libueye_stream.so.2
│ ├── libueye_stream.so.2 -> libueye_stream.so.2.0
│ ├── libueye_stream.so.2.0
│ └── live555
│ ├── libBasicUsageEnvironment.so
│ ├── libBasicUsageEnvironment.so.1
│ ├── libBasicUsageEnvironment.so.1.0.0
│ ├── libgroupsock.so
│ ├── libgroupsock.so.8
│ ├── libgroupsock.so.8.1.0
│ ├── libliveMedia.so
│ ├── libliveMedia.so.52
│ ├── libliveMedia.so.52.0.4
│ ├── libUsageEnvironment.so
│ ├── libUsageEnvironment.so.3
│ └── libUsageEnvironment.so.3.1.0
├── licenses
│ ├── thirdparty_copyrights.txt
│ ├── thirdparty_licenses.txt
│ └── thirdparty_rights.txt
├── README.txt
├── src
│ ├── SimpleStreamer
│ │ ├── build
│ │ ├── CMakeLists.txt
│ │ ├── libueye_stream.so
│ │ ├── libueye_stream.so.2.0
│ │ ├── main.cpp
│ │ └── ueye_stream.h
│ └── uEyeStreamer
│ ├── build
│ ├── CMakeLists.txt
│ ├── res
│ ├── src
│ ├── streamer.qrc
│ ├── streamer.rc.in
│ └── uEye_Streamer.ico
└── ueye_streamer.sh
这是 SimpleStreamer 的 CMakeLists.txt 的内容：
project(SimpleStream)
cmake_minimum_required(VERSION 2.8)
aux_source_directory(. SRC_LIST)
add_executable(${PROJECT_NAME} ${SRC_LIST})
target_link_libraries(${PROJECT_NAME} ueye_api ueye_stream)
我将项目的通用 lib 和 include 文件夹复制到系统范围 lib 和 include：
sudo cp include/ueye_stream.h /usr/local/include/
sudo cp lib/libueye_stream.so.2.0 /usr/local/lib/
我创建符号链接的方式与它在 /usr/local/lib 和项目的 lib 中的方式相同：
lrwxrwxrwx 1 olga olga 19 июн 21 2016 libueye_stream.so -> libueye_stream.so.2
lrwxrwxrwx 1 olga olga 21 июн 21 2016 libueye_stream.so.2 -> libueye_stream.so.2.0
-rwxr-xr-x 1 olga olga 151018 июн 21 2016 libueye_stream.so.2.0
我做了 sudo ldconfig 没有任何错误。
我在 SimpleStreamer 的 build 目录中做了 cmake ..：
-- Configuring done
-- Generating done
-- Build files have been written to: /home/olga/camera/ueye/ueye_stream/ueye_stream_x64/src/SimpleStreamer/build
但是当我继续 make 阶段时，我得到了很多错误：
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/src/SimpleStreamer/build$ make
[ 50%] Linking CXX executable SimpleStream
/usr/bin/ld: warning: libliveMedia.so.52, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libgroupsock.so.8, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libBasicUsageEnvironment.so.1, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libUsageEnvironment.so.3, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libavcodec.so.56, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libavfilter.so.5, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libavutil.so.54, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libswscale.so.3, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libavformat.so.56, needed by //usr/local/lib/libueye_stream.so, not found (try using -rpath or -rpath-link)
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::doStopGettingFrames()'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_decode_video2@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isServerMediaSession() const'
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::afterGetting(FramedSource*)'
//usr/local/lib/libueye_stream.so: undefined reference to `BasicUsageEnvironment::createNew(TaskScheduler&)'
//usr/local/lib/libueye_stream.so: undefined reference to `avpicture_get_size@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::setStreamSourceDuration(FramedSource*, double, unsigned long&)'
//usr/local/lib/libueye_stream.so: undefined reference to `av_free@LIBAVUTIL_54'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `ServerMediaSession::addSubsession(ServerMediaSubsession*)'
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::~FramedSource()'
//usr/local/lib/libueye_stream.so: undefined reference to `typeinfo for OnDemandServerMediaSubsession'
//usr/local/lib/libueye_stream.so: undefined reference to `av_frame_free@LIBAVUTIL_54'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::seekStream(unsigned int, void*, char*&, char*&)'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_get_context_defaults3@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::startStream(unsigned int, void*, void (*)(void*), void*, unsigned short&, unsigned int&, void (*)(void*, unsigned char), void*)'
//usr/local/lib/libueye_stream.so: undefined reference to `ServerMediaSubsession::testScaleFactor(float&)'
//usr/local/lib/libueye_stream.so: undefined reference to `JPEGVideoSource::JPEGVideoSource(UsageEnvironment&)'
//usr/local/lib/libueye_stream.so: undefined reference to `JPEGVideoSource::~JPEGVideoSource()'
//usr/local/lib/libueye_stream.so: undefined reference to `H264VideoRTPSink::createNew(UsageEnvironment&, Groupsock*, unsigned char)'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isRTSPClient() const'
//usr/local/lib/libueye_stream.so: undefined reference to `RTSPServer::rtspURL(ServerMediaSession const*, int) const'
//usr/local/lib/libueye_stream.so: undefined reference to `GenericMediaServer::addServerMediaSession(ServerMediaSession*)'
//usr/local/lib/libueye_stream.so: undefined reference to `sws_freeContext@LIBSWSCALE_3'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::getCurrentNPT(void*)'
//usr/local/lib/libueye_stream.so: undefined reference to `JPEGVideoSource::restartInterval()'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isRTPSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::deleteStream(unsigned int, void*&)'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::getRTPSinkandRTCP(void*, RTPSink const*&, RTCPInstance const*&)'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isDVVideoStreamFramer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `Port::Port(unsigned short)'
//usr/local/lib/libueye_stream.so: undefined reference to `av_new_packet@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::getStreamParameters(unsigned int, unsigned int, Port const&, Port const&, int, unsigned char, unsigned char, unsigned int&, unsigned char&, unsigned char&, Port&, Port&, void*&)'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isMPEG1or2VideoStreamFramer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::sdpLines()'
//usr/local/lib/libueye_stream.so: undefined reference to `BasicTaskScheduler::createNew(unsigned int)'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::seekStreamSource(FramedSource*, double&, double, unsigned long&)'
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::maxFrameSize() const'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_open2@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::~OnDemandServerMediaSubsession()'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isAMRAudioSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isH265VideoStreamFramer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::nullSeekStream(unsigned int, void*, double, unsigned long&)'
//usr/local/lib/libueye_stream.so: undefined reference to `av_frame_alloc@LIBAVUTIL_54'
//usr/local/lib/libueye_stream.so: undefined reference to `avpicture_fill@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::OnDemandServerMediaSubsession(UsageEnvironment&, unsigned char, unsigned short, unsigned char)'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::createGroupsock(in_addr const&, Port)'
//usr/local/lib/libueye_stream.so: undefined reference to `ServerMediaSubsession::getAbsoluteTimeRange(char*&, char*&) const'
//usr/local/lib/libueye_stream.so: undefined reference to `ServerMediaSession::createNew(UsageEnvironment&, char const*, char const*, char const*, unsigned char, char const*)'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isRTCPInstance() const'
//usr/local/lib/libueye_stream.so: undefined reference to `JPEGVideoRTPSink::createNew(UsageEnvironment&, Groupsock*)'
//usr/local/lib/libueye_stream.so: undefined reference to `GenericMediaServer::deleteServerMediaSession(ServerMediaSession*)'
//usr/local/lib/libueye_stream.so: undefined reference to `av_free_packet@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `ServerMediaSubsession::duration() const'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isRTSPServer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `av_register_all@LIBAVFORMAT_56'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::getAttributes() const'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_encode_video2@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `avformat_new_stream@LIBAVFORMAT_56'
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::isFramedSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `H264VideoStreamDiscreteFramer::createNew(UsageEnvironment&, FramedSource*)'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isSink() const'
//usr/local/lib/libueye_stream.so: undefined reference to `typeinfo for JPEGVideoSource'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::setStreamSourceScale(FramedSource*, float)'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::seekStream(unsigned int, void*, double&, double, unsigned long&)'
//usr/local/lib/libueye_stream.so: undefined reference to `OutPacketBuffer::maxSize'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::close(Medium*)'
//usr/local/lib/libueye_stream.so: undefined reference to `UsageEnvironment::reclaim()'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::MIMEtype() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::getAuxSDPLine(RTPSink*, FramedSource*)'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_close@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `av_init_packet@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::closeStreamSource(FramedSource*)'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isMPEG4VideoStreamFramer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::pauseStream(unsigned int, void*)'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isJPEGVideoSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_find_decoder@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `av_malloc@LIBAVUTIL_54'
//usr/local/lib/libueye_stream.so: undefined reference to `Medium::isMediaSession() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::createRTCP(Groupsock*, unsigned int, unsigned char const*, RTPSink*)'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_alloc_context3@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `avcodec_find_encoder@LIBAVCODEC_56'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::setStreamScale(unsigned int, void*, float)'
//usr/local/lib/libueye_stream.so: undefined reference to `sws_getContext@LIBSWSCALE_3'
//usr/local/lib/libueye_stream.so: undefined reference to `JPEGVideoSource::isJPEGVideoSource() const'
//usr/local/lib/libueye_stream.so: undefined reference to `MediaSource::isH264VideoStreamFramer() const'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::getStreamSource(void*)'
//usr/local/lib/libueye_stream.so: undefined reference to `FramedSource::FramedSource(UsageEnvironment&)'
//usr/local/lib/libueye_stream.so: undefined reference to `av_log_set_level@LIBAVUTIL_54'
//usr/local/lib/libueye_stream.so: undefined reference to `OnDemandServerMediaSubsession::seekStreamSource(FramedSource*, char*&, char*&)'
//usr/local/lib/libueye_stream.so: undefined reference to `RTSPServer::createNew(UsageEnvironment&, Port, UserAuthenticationDatabase*, unsigned int)'
//usr/local/lib/libueye_stream.so: undefined reference to `typeinfo for FramedSource'
//usr/local/lib/libueye_stream.so: undefined reference to `sws_scale@LIBSWSCALE_3'
collect2: error: ld returned 1 exit status
CMakeFiles/SimpleStream.dir/build.make:94: recipe for target 'SimpleStream' failed
make[2]: *** [SimpleStream] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/SimpleStream.dir/all' failed
make[1]: *** [CMakeFiles/SimpleStream.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2
在 README.md 项目的根目录中，我对头文件和库的安装一无所知...
更新
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/lib$ nm -C -u libwx_baseu-2.8.so libueye_stream.so.2.0
nm: 'libwx_baseu-2.8.so': No such file
libueye_stream.so.2.0:
U avcodec_alloc_context3@@LIBAVCODEC_56
.
.
系统版本：
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/lib$ lsb_release -a
\No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.2 LTS
Release: 18.04
Codename: bionic
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/lib$ uname -r
4.18.0-16-generic
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/lib$
ldd 的结果：
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/lib$ ldd libueye_stream.so.2.0
linux-vdso.so.1 (0x00007fff56183000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f215cbb5000)
libliveMedia.so.52 => not found
libgroupsock.so.8 => not found
libBasicUsageEnvironment.so.1 => not found
libUsageEnvironment.so.3 => not found
libavcodec.so.56 => not found
libavfilter.so.5 => not found
libavutil.so.54 => not found
libswscale.so.3 => not found
libavformat.so.56 => not found
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f215c82c000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f215c48e000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f215c276000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f215be85000)
/lib64/ld-linux-x86-64.so.2 (0x00007f215cfee000)
好的，在阅读了一些理论性的material和"Deduction Thinking"(c)之后，我找到了解决方案：
- 我创建了文件夹
/usr/local/lib/ueye_olga - 我将所有必要的库从项目的根目录
lib及其子文件夹复制到ueye_olga，请参阅下面的输出。 - 我删除了不需要的文件，并用链接替换了它们（参见下面的解释）
- 我创建了
/etc/ld.so.conf.d/ueye_olga.conf with path to the/usr/local/lib/ueye_olga`，见下文。 - 我做了
sudo ldconfig - 我检查了
libueye_stream.so是否正确链接（见下文） - 我需要移动
libueye_stream.so和它的链接文件夹，我不知道为什么，请参阅下面的错误。 - 再次
sudo ldconfig make正常工作
/usr/local/lib/ueye_olga`:
olga@olga-MS-7758:/usr/local/lib$ ls -la ueye_olga/
total 15984
drwxr-xr-x 2 root root 4096 мар 22 15:13 .
drwxr-xr-x 7 root root 12288 мар 22 15:27 ..
lrwxrwxrwx 1 root root 16 мар 22 15:02 libavcodec.so -> libavcodec.so.56
lrwxrwxrwx 1 root root 23 мар 22 15:02 libavcodec.so.56 -> libavcodec.so.56.60.100
-rwxr-xr-x 1 root root 12294344 мар 22 14:35 libavcodec.so.56.60.100
lrwxrwxrwx 1 root root 17 мар 22 15:04 libavdevice.so -> libavdevice.so.56
lrwxrwxrwx 1 root root 23 мар 22 15:04 libavdevice.so.56 -> libavdevice.so.56.4.100
-rwxr-xr-x 1 root root 62384 мар 22 14:35 libavdevice.so.56.4.100
lrwxrwxrwx 1 root root 16 мар 22 15:05 libavfilter.so -> libavfilter.so.5
lrwxrwxrwx 1 root root 23 мар 22 15:04 libavfilter.so.5 -> libavfilter.so.5.40.101
-rwxr-xr-x 1 root root 129104 мар 22 14:35 libavfilter.so.5.40.101
lrwxrwxrwx 1 root root 17 мар 22 15:06 libavformat.so -> libavformat.so.56
lrwxrwxrwx 1 root root 24 мар 22 15:06 libavformat.so.56 -> libavformat.so.56.40.101
-rwxr-xr-x 1 root root 1152424 мар 22 14:35 libavformat.so.56.40.101
lrwxrwxrwx 1 root root 15 мар 22 15:07 libavutil.so -> libavutil.so.54
lrwxrwxrwx 1 root root 22 мар 22 15:07 libavutil.so.54 -> libavutil.so.54.31.100
-rwxr-xr-x 1 root root 336088 мар 22 14:35 libavutil.so.54.31.100
lrwxrwxrwx 1 root root 29 мар 22 15:11 libBasicUsageEnvironment.so -> libBasicUsageEnvironment.so.1
lrwxrwxrwx 1 root root 33 мар 22 15:10 libBasicUsageEnvironment.so.1 -> libBasicUsageEnvironment.so.1.0.0
-rw-r--r-- 1 root root 55839 мар 22 14:36 libBasicUsageEnvironment.so.1.0.0
lrwxrwxrwx 1 root root 17 мар 22 15:11 libgroupsock.so -> libgroupsock.so.8
lrwxrwxrwx 1 root root 21 мар 22 15:11 libgroupsock.so.8 -> libgroupsock.so.8.1.0
-rw-r--r-- 1 root root 74323 мар 22 14:36 libgroupsock.so.8.1.0
lrwxrwxrwx 1 root root 18 мар 22 15:12 libliveMedia.so -> libliveMedia.so.52
lrwxrwxrwx 1 root root 22 мар 22 15:12 libliveMedia.so.52 -> libliveMedia.so.52.0.4
-rw-r--r-- 1 root root 1395586 мар 22 14:36 libliveMedia.so.52.0.4
lrwxrwxrwx 1 root root 18 мар 22 15:12 libswresample.so -> libswresample.so.1
lrwxrwxrwx 1 root root 24 мар 22 15:12 libswresample.so.1 -> libswresample.so.1.2.101
-rwxr-xr-x 1 root root 108008 мар 22 14:35 libswresample.so.1.2.101
lrwxrwxrwx 1 root root 15 мар 22 15:13 libswscale.so -> libswscale.so.3
lrwxrwxrwx 1 root root 21 мар 22 15:13 libswscale.so.3 -> libswscale.so.3.1.101
-rwxr-xr-x 1 root root 549048 мар 22 14:35 libswscale.so.3.1.101
lrwxrwxrwx 1 root root 19 мар 22 14:12 libueye_stream.so -> libueye_stream.so.2
lrwxrwxrwx 1 root root 21 мар 22 14:11 libueye_stream.so.2 -> libueye_stream.so.2.0
-rwxr-xr-x 1 root root 151018 мар 22 14:29 libueye_stream.so.2.0
lrwxrwxrwx 1 root root 24 мар 22 15:13 libUsageEnvironment.so -> libUsageEnvironment.so.3
lrwxrwxrwx 1 root root 28 мар 22 15:13 libUsageEnvironment.so.3 -> libUsageEnvironment.so.3.1.0
-rw-r--r-- 1 root root 15809 мар 22 14:36 libUsageEnvironment.so.3.1.0
删除不需要的文件：
如果你不创建软链接，你会得到如下错误：
/sbin/ldconfig.real: /usr/local/lib/ueye_olga/libavcodec.so.56 is not a symbolic link
原因：
As is typical with library modules libstdc could be installed as one of several versions. Typically only one version is installed and the other possible versions are represented as a symbolic link to the installed version. A symbolic link is another name pointing to the installed module. For example I have /usr/lib/libstdc++.so.6.0.10 installed. I also have /usr/liblibstdc++.so.6 as a symbolic link pointing to /usr/lib/libstdc++.so.6.0.10 so you can access libstdc++ under either name.
摘自 here.
/etc/ld.so.conf.d/ueye_olga.conf:
olga@olga-MS-7758:/usr/local/lib$ cat /etc/ld.so.conf.d/ueye_olga.conf
/usr/local/lib/ueye_olga
正确链接ueye_stream：
olga@olga-MS-7758:/usr/local/lib$ ldd libueye_stream.so
linux-vdso.so.1 (0x00007ffe467a0000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fb6c8879000)
libliveMedia.so.52 => /usr/local/lib/ueye_olga/libliveMedia.so.52 (0x00007fb6c8565000)
libgroupsock.so.8 => /usr/local/lib/ueye_olga/libgroupsock.so.8 (0x00007fb6c834b000)
libBasicUsageEnvironment.so.1 => /usr/local/lib/ueye_olga/libBasicUsageEnvironment.so.1 (0x00007fb6c8141000)
libUsageEnvironment.so.3 => /usr/local/lib/ueye_olga/libUsageEnvironment.so.3 (0x00007fb6c7f3e000)
libavcodec.so.56 => /usr/local/lib/ueye_olga/libavcodec.so.56 (0x00007fb6c6ad1000)
libavfilter.so.5 => /usr/local/lib/ueye_olga/libavfilter.so.5 (0x00007fb6c68b2000)
libavutil.so.54 => /usr/local/lib/ueye_olga/libavutil.so.54 (0x00007fb6c664c000)
libswscale.so.3 => /usr/local/lib/ueye_olga/libswscale.so.3 (0x00007fb6c63be000)
libavformat.so.56 => /usr/local/lib/ueye_olga/libavformat.so.56 (0x00007fb6c60a5000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fb6c5d1c000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fb6c597e000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fb6c5766000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fb6c5375000)
/lib64/ld-linux-x86-64.so.2 (0x00007fb6c8cb2000)
libswresample.so.1 => /usr/local/lib/ueye_olga/libswresample.so.1 (0x00007fb6c515b000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fb6c4f3e000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fb6c4d36000)
不是，那个 libueye_stream.so 带软链接的移动到 /usr/local/lib.
make 成功:
olga@olga-MS-7758:~/camera/ueye/ueye_stream/ueye_stream_x64/src/SimpleStreamer/build$ make
[ 50%] Linking CXX executable SimpleStream
[100%] Built target SimpleStream