2

我已经尝试构建 2.4 的所有版本，当“链接 CXX 可执行文件 ../../bin/opencv_test_core”时它们都失败了：

/usr/local/lib/libavcodec.so.54: undefined reference to `av_opt_set@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_strcasecmp@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_bprint_finalize@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_timecode_make_smpte_tc_string@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_timecode_make_string@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_realloc_f@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_timecode_get_smpte_from_framenum@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_timecode_init@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_samples_set_silence@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_calloc@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_opt_get@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_strncasecmp@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_samples_fill_arrays@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_get_media_type_string@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_dynarray_add@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_bprint_init@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_asprintf@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_sample_fmt_is_planar@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_samples_get_buffer_size@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_opt_get_int@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_timecode_make_mpeg_tc_string@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_rescale_q_rnd@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_bprintf@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_samples_copy@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_get_default_channel_layout@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_timecode_init_from_string@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_bprint_chars@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_des_mac@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_timecode_adjust_ntsc_framenum@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_timegm@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_tempfile@LIBAVUTIL_51'

我的 CMakeLists.txt 文件是默认文件，但我将其更改为使用 TBB、禁用文档并打开详细模式。

做 ldd /usr/local/lib/libavcodec.so.54 我得到：

root@omap4-multi:~/opencv/2.4.3/build# ldd /usr/local/lib/libavcodec.so.54
    libavutil.so.51 => /usr/local/lib/libavutil.so.51 (0xb6132000)
    libx264.so.123 => /usr/local/lib/libx264.so.123 (0xb5fc4000)
    libvorbisenc.so.2 => /usr/local/lib/libvorbisenc.so.2 (0xb5e4a000)
    libvorbis.so.0 => /usr/local/lib/libvorbis.so.0 (0xb5e14000)
    libtheoraenc.so.1 => /usr/local/lib/libtheoraenc.so.1 (0xb5dcc000)
    libtheoradec.so.1 => /usr/local/lib/libtheoradec.so.1 (0xb5dac000)
    libopencore-amrwb.so.0 => /usr/local/lib/libopencore-amrwb.so.0 (0xb5d93000)
    libopencore-amrnb.so.0 => /usr/local/lib/libopencore-amrnb.so.0 (0xb5d67000)
    libmp3lame.so.0 => /usr/local/lib/libmp3lame.so.0 (0xb5cdd000)
    libfaac.so.0 => /usr/local/lib/libfaac.so.0 (0xb5cc1000)
    libm.so.6 => /lib/libm.so.6 (0xb5c44000)
    libz.so.1 => /usr/lib/libz.so.1 (0xb5c29000)
    libgcc_s.so.1 => /usr/local/lib/libgcc_s.so.1 (0xb5c02000)
    libpthread.so.0 => /lib/libpthread.so.0 (0xb5be3000)
    libc.so.6 => /lib/libc.so.6 (0xb5ab8000)
    libogg.so.0 => /usr/local/lib/libogg.so.0 (0xb5aac000)
    /lib/ld-linux.so.3 (0x42228000)

任何人都知道可能导致它的原因，或者我可以做些什么来解决它？我已经为此工作了很长一段时间，并且不知所措。任何帮助将非常感激。

4

2 回答 2

0

我有一个类似的问题，但如果你升级了 ffmpeg 的一个或多个依赖项，这是 ffmpeg 的问题。ffmpeg 需要重新编译或更新其所有依赖项

于 2013-12-04T05:36:09.947 回答
0

我也有这个问题。即使我重新编译ffmpeg，问题仍然存在。最后，我意识到从源代码安装的ffmpeg与安装的lib之间存在冲突apt-get，我的意思是libavutil-dev，libavutil-extra-51。简单地删除 ffmpeg usingapt-get remove ffmpeg并不能解决这个问题。我的解决方案是删除安装的冲突库apt，如下所示：

sudo apt-get remove libavutil-dev libavutil-extra-51

希望对你有用。

于 2014-07-30T08:44:35.953 回答