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    • 记录一下安装obs25.0.7的过程（obs捕获视频模拟一个照相机）
    Apps Section 2733 views · 5 replies ·
    Tofloor
    poster avatar
    houyawei
    deepin
    2020-05-06 20:35
    Author
    本帖最后由 houyawei 于 2020-5-10 22:25 编辑

    本来想要用obs模拟一个虚拟摄像头，和别人视频的时候可以显示自己的电脑屏幕以及手机摄像头，不过后来发现v4l2sink安装上去没反应，不知道是不是源里的obs有点老了，就从官网编译了一个最新版。反正挺麻烦的，就记录了一下。想实现的效果如图。

    ---------------------------------------------------------------------------------------------------------------------------------------------
    先把编译包放出来，我安装的时候提示有个包重写失败，我是手动把它卸载，之后安装obs,最后补全依赖sudo apt install -f就好了。https://ww.lanzous.com/icb9g3g
    下面是一个小白的折腾全程
    如果想试试安装最新版obs,直接下这个链接就好了。
    如果想使用源里面的obs,直接sudo apt install obs-studio,都不用往下看了。
    ----------------------------------------------------------------------------------------------------------------------------------------------------

    1.按照obs官网教程安装
    链接：https://github.com/obsproject/obs-studio/wiki/Install-Instructions#debian-installation-unofficial
    1. Debian-based Build Directions
    2. Get the required packages:

    4.   sudo apt-get install \
    5.              build-essential \
    6.              checkinstall \
    7.              cmake \
    8.              git \
    9.              libmbedtls-dev \
    10.              libasound2-dev \
    11.              libavcodec-dev \
    12.              libavdevice-dev \
    13.              libavfilter-dev \
    14.              libavformat-dev \
    15.              libavutil-dev \
    16.              libcurl4-openssl-dev \
    17.              libfdk-aac-dev \
    18.              libfontconfig-dev \
    19.              libfreetype6-dev \
    20.              libgl1-mesa-dev \
    21.              libjack-jackd2-dev \
    22.              libjansson-dev \
    23.              libluajit-5.1-dev \
    24.              libpulse-dev \
    25.              libqt5x11extras5-dev \
    26.              libspeexdsp-dev \
    27.              libswresample-dev \
    28.              libswscale-dev \
    29.              libudev-dev \
    30.              libv4l-dev \
    31.              libvlc-dev \
    32.              libx11-dev \
    33.              libx264-dev \
    34.              libxcb-shm0-dev \
    35.              libxcb-xinerama0-dev \
    36.              libxcomposite-dev \
    37.              libxinerama-dev \
    38.              pkg-config \
    39.              python3-dev \
    40.              qtbase5-dev \
    41.              libqt5svg5-dev \
    42.              swig \
    43.              libxcb-randr0-dev \
    44.              libxcb-xfixes0-dev \
    45.              libx11-xcb-dev \
    46.              libxcb1-dev
    47. Building and installing OBS:

    49. If building with browser source:

    51. wget https://cdn-fastly.obsproject.com/downloads/cef_binary_3770_linux64.tar.bz2
    52. tar -xjf ./cef_binary_3770_linux64.tar.bz2
    53. git clone --recursive https://github.com/obsproject/obs-studio.git
    54. cd obs-studio
    55. mkdir build && cd build
    56. cmake -DUNIX_STRUCTURE=1 -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_BROWSER=ON -DCEF_ROOT_DIR="../../cef_binary_3770_linux64" ..
    57. make -j4
    58. sudo checkinstall --default --pkgname=obs-studio --fstrans=no --backup=no --pkgversion="$(date +%Y%m%d)-git" --deldoc=yes
    59. If building without browser source

    61. git clone --recursive https://github.com/obsproject/obs-studio.git
    62. cd obs-studio
    63. mkdir build && cd build
    64. cmake -DUNIX_STRUCTURE=1 -DCMAKE_INSTALL_PREFIX=/usr ..
    65. make -j4
    66. sudo checkinstall --default --pkgname=obs-studio --fstrans=no --backup=no --pkgversion="$(date +%Y%m%d)-git" --deldoc=yes
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    2.git clone的时候设置了代理，不然速度太慢    ，也试过用码云下载，刚开始挺快后面某些子组件又转到github下载，很慢。估计是要自己加一个新仓库才行。
    1. git config --global http.proxy 'socks5://127.0.0.1:1080'
    2. git config --global https.proxy 'socks5://127.0.0.1:1080'
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    3.装的过程中发现源里没有checkinstall,这也要改好多东西，不然最后一步没法进行。
    参考https://blog.51cto.com/shugao/1360193，https://blog.51cto.com/thinkman/1135049


    1. 下载最新版本的checkinstall:
    2. wget http://asic-linux.com.mx/~izto/checkinstall/files/source/checkinstall-1.6.2.tar.gz

    4. tar -xvzf checkinstall-1.6.2.tar.tar
    5. cd checkinstall-1.6.2
    6. 直接make 会报错

    8. installwatch.c:2942: error: conflicting types for 'readlink'  
    9. /usr/include/unistd.h:828: note: previous declaration of 'readlink' was here  
    10. installwatch.c:3080: error: conflicting types for 'scandir'  
    11. /usr/include/dirent.h:252: note: previous declaration of 'scandir' was here  
    12. installwatch.c:3692: error: conflicting types for 'scandir64'  
    13. /usr/include/dirent.h:275: note: previous declaration of 'scandir64' was here  

    15. vim installwatch/installwatch.c



    19. at line 101, change:
    20. static int (*true_scandir)( const char *,struct dirent ***,
    21.     int (*)(const struct dirent *),
    22.     int (*)(const void *,const void *));

    24. to:
    25. static int (*true_scandir)( const char *,struct dirent ***,
    26.     int (*)(const struct dirent *),
    27.     int (*)(const struct dirent **,const struct dirent **));




    32. at line 121, change:
    33. static int (*true_scandir64)( const char *,struct dirent64 ***,
    34.     int (*)(const struct dirent64 *),
    35.     int (*)(const void *,const void *));

    37. to:
    38. static int (*true_scandir64)( const char *,struct dirent64 ***,
    39.     int (*)(const struct dirent64 *),
    40.     int (*)(const struct dirent64 **,const struct dirent64 **));


    43. at line 2941, change:
    44. #if (GLIBC_MINOR <= 4)
    45. to:
    46. #if (0)
    47. at line 3080, change:
    48. int scandir( const char *dir,struct dirent ***namelist,
    49.   int (*select)(const struct dirent *),
    50.   int (*compar)(const void *,const void *) ) {

    52. to:
    53. int scandir( const char *dir,struct dirent ***namelist,
    54.   int (*select)(const struct dirent *),
    55.   int (*compar)(const struct dirent **,const struct dirent **) ) {

    57. at line 3692, change:
    58. int scandir64( const char *dir,struct dirent64 ***namelist,
    59.   int (*select)(const struct dirent64 *),
    60.   int (*compar)(const void *,const void *) ) {

    62. to:
    63. int scandir64( const char *dir,struct dirent64 ***namelist,
    64.   int (*select)(const struct dirent64 *),
    65.   int (*compar)(const struct dirent64 **,const struct dirent64 **) ) {
    66. 完成后make
    67. 直接make install 虽然不会报错但是在使用checkinstall 的时候，会报错
    68. “checkinstall error: File not found: /root/rpmbuild/BUILDROOT/”这种蛋疼的错误；
    69. vim checkinstall
    70. at line 495, change: CHECKINSTALLRC=${CHECKINSTALLRC:-${INSTALLDIR}/checkinstallrc}
    71. to:
    72. CHECKINSTALLRC=${CHECKINSTALLRC:-${INSTALLDIR}/lib/checkinstall/checkinstallrc}

    74. at line 2466, change: $RPMBUILD -bb ${RPM_TARGET_FLAG}${ARCHITECTURE} "$SPEC_PATH" &> ${TMP_DIR}/rpmbuild.log
    75. to:
    76. $RPMBUILD -bb ${RPM_TARGET_FLAG}${ARCHITECTURE} --buildroot $BROOTPATH "$SPEC_PATH" &> ${TMP_DIR}/rpmbuild.log
    77. Now, as root, run:
    78. make install

    80. 在使用makeinstall 的时候如果报“/root/rpmbuild has no SOURCES driectory”的错误，执行mkdir -p /root/rpmbuild/SOURCES命令；

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    4.安装v4l2loopback-dkms_0.12.5-1
    链接：https://packages.debian.org/sid/all/v4l2loopback-dkms/download

    5.加载v4l2loopback模块
    1. sudo modprobe v4l2loopback
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    6.安装obs-v4l2sink（类似Windows版的obs虚拟摄像头插件）
    链接：https://github.com/CatxFish/obs-v4l2sink/releases

    7.在obs里面选择：工具—>v4l5sink->填一个能用的设备videoX，start。
    现在obs里面捕获的视频就可以模仿一个虚拟摄像头了。

    7.接着在手机端随便下载一个支持rstp照相机，开启服务。在obs里面添加照相机的rstp地址，完成。效果如图，又打了个电话测试一下正常。





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    avatar
    心平气和
    deepin
    2020-05-06 23:15
    #1
    checkinstall 安装的时候不用这么麻烦，加入ubuntu的源，安装就好了
    Reply View the author
    Comments
    windnbike
    2020-05-24 03:22
    deepin源里有这个，v20的没有
    avatar
    houyawei
    deepin
    2020-05-06 23:18
    #2
    https://bbs.deepin.org/post/193701
    checkinstall 安装的时候不用这么麻烦，加入ubuntu的源，安装就好了

    昨天在论坛搜，啥也没搜到。15.11的时候源里面有
    Reply View the author
    avatar
    cnyangbaisong
    deepin
    2020-05-07 02:30
    #3
    我直接网上找obs studio最新版的appimage来用，不用安装，非常简单易用
    Reply View the author
    Comments
    houyawei
    2020-05-14 05:36
    我后来重装系统试了一下这个包可以直接安装，编译以后算是方便大家吧
    avatar
    176******49
    deepin
    2020-05-24 04:03
    #4
    补充一点
    如果安装了conda，还会遇到uuid的问题，提示
    //lib/x86_64-linux-gnu/libSM.so.6: undefined reference to `uuid_generate@UUID_1.0'
    //lib/x86_64-linux-gnu/libSM.so.6: undefined reference to `uuid_unparse_lower@UUID_1.0'
    解决方法是修改PATH变量
    1. echo $PATH
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    /home/home/anaconda3/bin:/home/home/anaconda3/condabin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/sbin:/usr/sbin
    去掉前面anaconda3的两个路径
    1. PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/sbin:/usr/sbin:/usr/local/cuda/bin
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    avatar
    neko
    deepin
    Ecological co-builder
    Q&A Team
    2020-05-24 05:28
    #5
    赞，很详细                     
    Reply View the author