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树莓派rock PI S 编译libjpeg
  • 首页 > 视频图像处理
  • 作者:小v
  • 2020年8月17日 15:54 星期一
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  • jpeglib下载地址:http://www.ijg.org/

    下载

    jpegsrc.v9d.tar.gz

    wbyq@wbyq:~/work_pc$ cd jpeg-9d/
    wbyq@wbyq:~/work_pc/jpeg-9d$ ./configure 
    wbyq@wbyq:~/work_pc/jpeg-9d$ make
    wbyq@wbyq:~/work_pc/jpeg-9d$ sudo make install
    [sudo] wbyq 的密码: 
    make[1]: 进入目录“/home/wbyq/work_pc/jpeg-9d”
     /bin/mkdir -p '/usr/local/lib'
     /bin/bash ./libtool   --mode=install /usr/bin/install -c   libjpeg.la '/usr/local/lib'
    libtool: install: /usr/bin/install -c .libs/libjpeg.so.9.4.0 /usr/local/lib/libjpeg.so.9.4.0
    libtool: install: (cd /usr/local/lib && { ln -s -f libjpeg.so.9.4.0 libjpeg.so.9 || { rm -f libjpeg.so.9 && ln -s libjpeg.so.9.4.0 libjpeg.so.9; }; })
    libtool: install: (cd /usr/local/lib && { ln -s -f libjpeg.so.9.4.0 libjpeg.so || { rm -f libjpeg.so && ln -s libjpeg.so.9.4.0 libjpeg.so; }; })
    libtool: install: /usr/bin/install -c .libs/libjpeg.lai /usr/local/lib/libjpeg.la
    libtool: install: /usr/bin/install -c .libs/libjpeg.a /usr/local/lib/libjpeg.a
    libtool: install: chmod 644 /usr/local/lib/libjpeg.a
    libtool: install: ranlib /usr/local/lib/libjpeg.a
    libtool: finish: PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin:/sbin" ldconfig -n /usr/local/lib
    ----------------------------------------------------------------------
    Libraries have been installed in:
       /usr/local/lib
     
    If you ever happen to want to link against installed libraries
    in a given directory, LIBDIR, you must either use libtool, and
    specify the full pathname of the library, or use the '-LLIBDIR'
    flag during linking and do at least one of the following:
       - add LIBDIR to the 'LD_LIBRARY_PATH' environment variable
         during execution
       - add LIBDIR to the 'LD_RUN_PATH' environment variable
         during linking
       - use the '-Wl,-rpath -Wl,LIBDIR' linker flag
       - have your system administrator add LIBDIR to '/etc/ld.so.conf'
     
    See any operating system documentation about shared libraries for
    more information, such as the ld(1) and ld.so(8) manual pages.
    ----------------------------------------------------------------------
     /bin/mkdir -p '/usr/local/bin'
      /bin/bash ./libtool   --mode=install /usr/bin/install -c cjpeg djpeg jpegtran rdjpgcom wrjpgcom '/usr/local/bin'
    libtool: install: /usr/bin/install -c .libs/cjpeg /usr/local/bin/cjpeg
    libtool: install: /usr/bin/install -c .libs/djpeg /usr/local/bin/djpeg
    libtool: install: /usr/bin/install -c .libs/jpegtran /usr/local/bin/jpegtran
    libtool: install: /usr/bin/install -c rdjpgcom /usr/local/bin/rdjpgcom
    libtool: install: /usr/bin/install -c wrjpgcom /usr/local/bin/wrjpgcom
    /bin/bash /home/wbyq/work_pc/jpeg-9d/install-sh -d /usr/local/include
    /usr/bin/install -c -m 644 jconfig.h /usr/local/include/jconfig.h
     /bin/mkdir -p '/usr/local/include'
     /usr/bin/install -c -m 644 jerror.h jmorecfg.h jpeglib.h '/usr/local/include'
     /bin/mkdir -p '/usr/local/share/man/man1'
     /usr/bin/install -c -m 644 cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 wrjpgcom.1 '/usr/local/share/man/man1'
     /bin/mkdir -p '/usr/local/lib/pkgconfig'
     /usr/bin/install -c -m 644 libjpeg.pc '/usr/local/lib/pkgconfig'
    make[1]: 离开目录“/home/wbyq/work_pc/jpeg-9d”

    编译时需要注意 如果

     gcc video_app.c yuv_to_jpeg.c -o app -ljpeg

    编译成功后,运行app时出现

    Wrong JPEG library version: library is 62, caller expects 90

    说明系统中有两个版本的libjpeg库,笔者这里可能是opencv的导致的。

    所以将编译改成这样,查找指定的lib 路径

    gcc video_app.c yuv_to_jpg.c -o app /usr/local/lib/libjpeg.so


    /usbcam_jpeg $ ./app /dev/video1
    摄像头打开成功.
    当前摄像头支持输出的图像格式如下:
    <'YUYV'--'YUYV 4:2:2'>
    摄像头实际输出的图像尺寸:x=1280,y=1024
    当前摄像头支持YUV格式图像输出!
    设置当前摄像头采集帧率: 1秒30帧
    当前摄像头实际采集帧率: 2秒15帧
    摄像头缓冲区申请的数量: 4
    VideoDeviceInit=0
    image_buffer[0]=76B4D000
    图片名称:0.jpg,字节大小:62570
    image_buffer[1]=768CD000
    图片名称:1.jpg,字节大小:66057
    image_buffer[2]=7664D000
    图片名称:2.jpg,字节大小:69249
    image_buffer[3]=763CD000
    图片名称:3.jpg,字节大小:69249
    image_buffer[0]=76B4D000
    图片名称:4.jpg,字节大小:69249
    image_buffer[1]=768CD000
    图片名称:5.jpg,字节大小:70668
    image_buffer[2]=7664D000
    图片名称:6.jpg,字节大小:68325
    image_buffer[3]=763CD000
    图片名称:7.jpg,字节大小:68325
    image_buffer[0]=76B4D000
    图片名称:8.jpg,字节大小:68325
    image_buffer[1]=768CD000
    图片名称:9.jpg,字节大小:69971
    image_buffer[2]=7664D000
    图片名称:10.jpg,字节大小:68604
    image_buffer[3]=763CD000
    图片名称:11.jpg,字节大小:68604
    image_buffer[0]=76B4D000
    图片名称:12.jpg,字节大小:68604
    image_buffer[1]=768CD000
    图片名称:13.jpg,字节大小:73135
    image_buffer[2]=7664D000
    
    
    不再报错。
    源码下载地址
    	

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    本文作者:小v      文章标题: 树莓派rock PI S 编译libjpeg
    本文地址:http://blog.cvosrobot.com/?post=535
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