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OpenCV编译过程失败

[英]OpenCV compile process fails

 原文  2017-09-12 07:04:24  1   2    macos/ opencv/ ffmpeg

问题描述

因此，我关注这篇关于如何为Python 3安装openCV的文章。在编译过程中，我遇到了一些问题。 运行make -j4命令可以正常工作，直到收到此错误消息为止，直到28％为止： error: use of undeclared identifier 'avcodec_free_frame'; did you mean 'avcodec_get_name'? error: use of undeclared identifier 'avcodec_free_frame'; did you mean 'avcodec_get_name'?

我什至不知道从哪里开始解决这个问题。 我通过brew安装了ffmpeg 。

命令完整列表： 

cd ~
git clone https://github.com/Itseez/opencv.git
cd opencv
git checkout 3.0.0
cd ~
git clone https://github.com/Itseez/opencv_contrib.git
cd opencv_contrib
git checkout 3.0.0
cd ~/opencv
mkdir build
cd build
cmake CMAKE_BUILD_TYPE=RELEASE \
    -D CMAKE_INSTALL_PREFIX=/usr/local \
    -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules \
    -D PYTHON3_LIBRARY=/usr/local/Cellar/python3/3.5.2_3/Frameworks/Python.framework/Versions/3.5/lib/python3.5/config-3.5m/libpython3.5.dylib \
    -D PYTHON3_INCLUDE_DIR=/usr/local/Cellar/python3/3.5.2_3/Frameworks/Python.framework/Versions/3.5/include/python3.5m/ \
    -D PYTHON3_EXECUTABLE=$VIRTUAL_ENV/bin/python \
    -D BUILD_opencv_python2=OFF \
    -D BUILD_opencv_python3=ON \
    -D INSTALL_PYTHON_EXAMPLES=ON \
    -D INSTALL_C_EXAMPLES=OFF \
    -D BUILD_EXAMPLES=ON .. \
    -D FFMPEG_INCLUDE_DIR=/usr/local/Cellar/ffmpeg/3.3.4/include/
    -D FFMPEG_LIB_DIR=/usr/local/Cellar/ffmpeg/3.3.4/lib/
    -D WITH_FFMPEG=ON
cmake
make -j4

我从这篇文章中获得了FFMPEG_INCLUDE_DIR ， FFMPEG_LIB_DIR和WITH_FFMPEG ： http : WITH_FFMPEG ffmpeg-support /

完整的错误日志： 

[ 28%] Building CXX object modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_qtkit.mm.o
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:317:9: error: use of undeclared identifier
      'avcodec_free_frame'; did you mean 'avcodec_get_name'?
        avcodec_free_frame(&picture);
        ^~~~~~~~~~~~~~~~~~
        avcodec_get_name
/usr/local/Cellar/ffmpeg/3.3.4/include/libavcodec/avcodec.h:6289:13: note: 'avcodec_get_name' declared here
const char *avcodec_get_name(enum AVCodecID id);
            ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:317:28: error: cannot initialize a parameter of type
      'enum AVCodecID' with an rvalue of type 'AVFrame **'
        avcodec_free_frame(&picture);
                           ^~~~~~~~
/usr/local/Cellar/ffmpeg/3.3.4/include/libavcodec/avcodec.h:6289:45: note: passing argument to parameter 'id' here
const char *avcodec_get_name(enum AVCodecID id);
                                            ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:632:23: error: use of undeclared identifier
      'avcodec_alloc_frame'
            picture = avcodec_alloc_frame();
                      ^
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:635:41: error: use of undeclared identifier
      'PIX_FMT_BGR24'; did you mean 'AV_PIX_FMT_BGR24'?
                    avpicture_get_size( PIX_FMT_BGR24,
                                        ^~~~~~~~~~~~~
                                        AV_PIX_FMT_BGR24
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:65:5: note: 'AV_PIX_FMT_BGR24' declared here
    AV_PIX_FMT_BGR24,     ///< packed RGB 8:8:8, 24bpp, BGRBGR...
    ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:638:29: error: use of undeclared identifier
      'PIX_FMT_BGR24'; did you mean 'AV_PIX_FMT_BGR24'?
                            PIX_FMT_BGR24, enc->width, enc->height );
                            ^~~~~~~~~~~~~
                            AV_PIX_FMT_BGR24
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:65:5: note: 'AV_PIX_FMT_BGR24' declared here
    AV_PIX_FMT_BGR24,     ///< packed RGB 8:8:8, 24bpp, BGRBGR...
    ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:738:67: error: use of undeclared identifier
      'PIX_FMT_RGB24'; did you mean 'AV_PIX_FMT_RGB24'?
    avpicture_fill((AVPicture*)&rgb_picture, rgb_picture.data[0], PIX_FMT_RGB24,
                                                                  ^~~~~~~~~~~~~
                                                                  AV_PIX_FMT_RGB24
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:64:5: note: 'AV_PIX_FMT_RGB24' declared here
    AV_PIX_FMT_RGB24,     ///< packed RGB 8:8:8, 24bpp, RGBRGB...
    ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:756:17: error: use of undeclared identifier
      'PIX_FMT_BGR24'; did you mean 'AV_PIX_FMT_BGR24'?
                PIX_FMT_BGR24,
                ^~~~~~~~~~~~~
                AV_PIX_FMT_BGR24
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:65:5: note: 'AV_PIX_FMT_BGR24' declared here
    AV_PIX_FMT_BGR24,     ///< packed RGB 8:8:8, 24bpp, BGRBGR...
    ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1110:15: error: use of undeclared identifier
      'avcodec_alloc_frame'
    picture = avcodec_alloc_frame();
              ^
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1113:33: error: unknown type name 'PixelFormat'; did you
      mean 'AVPixelFormat'?
    size = avpicture_get_size( (PixelFormat) pix_fmt, width, height);
                                ^~~~~~~~~~~
                                AVPixelFormat
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:60:6: note: 'AVPixelFormat' declared here
enum AVPixelFormat {
     ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1122:25: error: unknown type name 'PixelFormat'; did you
      mean 'AVPixelFormat'?
                       (PixelFormat) pix_fmt, width, height);
                        ^~~~~~~~~~~
                        AVPixelFormat
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:60:6: note: 'AVPixelFormat' declared here
enum AVPixelFormat {
     ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1230:19: error: unknown type name 'PixelFormat'; did you
      mean 'AVPixelFormat'?
    c->pix_fmt = (PixelFormat) pixel_format;
                  ^~~~~~~~~~~
                  AVPixelFormat
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:60:6: note: 'AVPixelFormat' declared here
enum AVPixelFormat {
     ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1405:26: error: use of undeclared identifier
      'PIX_FMT_BGR24'; did you mean 'AV_PIX_FMT_BGR24'?
    if (input_pix_fmt == PIX_FMT_BGR24) {
                         ^~~~~~~~~~~~~
                         AV_PIX_FMT_BGR24
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:65:5: note: 'AV_PIX_FMT_BGR24' declared here
    AV_PIX_FMT_BGR24,     ///< packed RGB 8:8:8, 24bpp, BGRBGR...
    ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1410:31: error: use of undeclared identifier
      'PIX_FMT_GRAY8'; did you mean 'AV_PIX_FMT_GRAY8'?
    else if (input_pix_fmt == PIX_FMT_GRAY8) {
                              ^~~~~~~~~~~~~
                              AV_PIX_FMT_GRAY8
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:70:5: note: 'AV_PIX_FMT_GRAY8' declared here
    AV_PIX_FMT_GRAY8,     ///<        Y        ,  8bpp
    ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1423:25: error: unknown type name 'PixelFormat'; did you
      mean 'AVPixelFormat'?
                       (PixelFormat)input_pix_fmt, width, height);
                        ^~~~~~~~~~~
                        AVPixelFormat
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:60:6: note: 'AVPixelFormat' declared here
enum AVPixelFormat {
     ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1429:47: error: unknown type name 'PixelFormat'; did you
      mean 'AVPixelFormat'?
                                             (PixelFormat)input_pix_fmt,
                                              ^~~~~~~~~~~
                                              AVPixelFormat
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:60:6: note: 'AVPixelFormat' declared here
enum AVPixelFormat {
     ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1447:25: error: unknown type name 'PixelFormat'; did you
      mean 'AVPixelFormat'?
                       (PixelFormat)input_pix_fmt, width, height);
                        ^~~~~~~~~~~
                        AVPixelFormat
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:60:6: note: 'AVPixelFormat' declared here
enum AVPixelFormat {
     ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1604:25: error: use of undeclared identifier
      'PIX_FMT_BGR24'; did you mean 'AV_PIX_FMT_BGR24'?
        input_pix_fmt = PIX_FMT_BGR24;
                        ^~~~~~~~~~~~~
                        AV_PIX_FMT_BGR24
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:65:5: note: 'AV_PIX_FMT_BGR24' declared here
    AV_PIX_FMT_BGR24,     ///< packed RGB 8:8:8, 24bpp, BGRBGR...
    ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1607:25: error: use of undeclared identifier
      'PIX_FMT_GRAY8'; did you mean 'AV_PIX_FMT_GRAY8'?
        input_pix_fmt = PIX_FMT_GRAY8;
                        ^~~~~~~~~~~~~
                        AV_PIX_FMT_GRAY8
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:70:5: note: 'AV_PIX_FMT_GRAY8' declared here
    AV_PIX_FMT_GRAY8,     ///<        Y        ,  8bpp
    ^
In file included from /Users/myuser/opencv/modules/videoio/src/cap_ffmpeg.cpp:45:
/Users/myuser/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:1683:25: error: use of undeclared identifier
      'PIX_FMT_YUV422P'; did you mean 'AV_PIX_FMT_YUV422P'?
        codec_pix_fmt = PIX_FMT_YUV422P;
                        ^~~~~~~~~~~~~~~
                        AV_PIX_FMT_YUV422P
/usr/local/Cellar/ffmpeg/3.3.4/include/libavutil/pixfmt.h:66:5: note: 'AV_PIX_FMT_YUV422P' declared here
    AV_PIX_FMT_YUV422P,   ///< planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
    ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
make[2]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_ffmpeg.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/Users/myuser/opencv/modules/videoio/src/cap_qtkit.mm:46:9: fatal error: 'QTKit/QTKit.h' file not found
#import <QTKit/QTKit.h>
        ^
1 error generated.
make[2]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_qtkit.mm.o] Error 1
make[1]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/all] Error 2
make: *** [all] Error 2

openCV网站上的这个问题似乎也解决了同样的问题，但是没有发布解决方案： http : //answers.opencv.org/question/90091/error-use-of-undeclared-identifier-avcodec_free_frame-did-you-mean- avcodec_get_name /

2 个解决方案

解决方案1
 1  2017-09-12 07:40:24

从错误日志中，您似乎具有ffmpeg版本3.3.3，同时您强制cmake查找版本3.3.4的标头和库。 您应该清除CMake缓存，并使其自动检测ffmpeg。 或者，您可以通过brew upgrade ffmpeg来将ffmpeg升级到3.3.4。

另外，我建议在此处使用最新版本的CMake GUI。

解决方案2
 1 已采纳  2017-09-12 08:18:00

ffmpeg很久以前不推荐使用avcodec_free_frame ， PixelFormat和PIX_FMT_xxx 。 我很确定它们甚至在3.3.4或当前的master分支中都不存在。

因此，您签出的opencv版本必须太旧，无法使用ffmpeg 3.3.4构建，并且可能仅与ffmpeg 2系列兼容。

OpenCV的更新ffmpeg的兼容性在最近提交，像这样 。 您可以看到条件宏以适合不同的ffmpeg API，较新的av_frame_free和较旧的avcodec_frame_free 。

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