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2016-02-25 13:18:12 -0600
| received badge | ● Popular Question
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2012-11-10 07:44:27 -0600
| answered a question | Getting OpenCV project for Ubuntu 10.04 compiled on Ubuntu 12.04 OpenCV has been changed largely since the version of 2.1, the file cv.h couldn't be found after 2.0. If you want to build your projects with OpenCV2.4.x, you should read the online document and include the correct library. Here is a guidance of installing OpenCV2.4.1 in Ubuntu12.04. You'd better build opencv with ffmpeg0.8, when I do that with ffmpeg1.0, I failed.
Here is the guidance of installing ffmpeg. |
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2012-11-08 21:51:43 -0600
| commented answer | OpenCV2.4.3 build with the Intel IPP failed I just install Ipp7.1, but it still has the same problem. I install Ipp7.1 with the default opition, build opencv with BUILD_SHARED_LIBS = ON. Can you tell me how do you install the ipp? |
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2012-11-08 12:07:23 -0600
| asked a question | build OpenCV2.4.3 failed with CUDA5.0 I have been built OpenCV2.4.3 successfully without CUDA5.0, but when I built with it, it failed. I doubt it was caused by the version of ffmpeg, but I'm not sure.
Can you tell me how to solve it? Linking CXX executable ../../bin/opencv_test_gpu
/usr/local/lib/libavformat.so.54: undefined reference to `av_small_strptime@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_timecode_check_frame_rate@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_dict_count@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/libavcodec.so.54: undefined reference to `av_get_media_type_string@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_image_fill_arrays@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 `avpriv_float_dsp_init@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_image_get_buffer_size@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_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/libavformat.so.54: undefined reference to `av_opt_set_bin@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_image_copy_to_buffer@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_gettime@LIBAVUTIL_51'
/usr/local/lib/libavformat.so.54: undefined reference to `av_usleep@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_bprint_clear@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_strtok@LIBAVUTIL_51'
/usr/local/lib/libavcodec.so.54: undefined reference to `av_timecode_adjust_ntsc_framenum2@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/libavcodec.so.54: undefined reference to `av_tempfile@LIBAVUTIL_51'
collect2: ld return 1
make[2]: *** [bin/opencv_test_gpu] error 1
make[1]: *** [modules/gpu/CMakeFiles/opencv_test_gpu.dir/all] error 2
make: *** [all] error 2
Other Imformation: - ubuntu12.04
- gcc4.6.3
- ffmpeg1.0
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2012-11-08 11:05:37 -0600
| answered a question | Building OpenCV 2.4.3 as 32 bit lib /usr/bin/ld: cannot find -lavcodec
/usr/bin/ld: cannot find -lavformat
/usr/bin/ld: cannot find -lavutil
/usr/bin/ld: cannot find -lswscale ======================================== It seems that you haven't installed ffmpeg correctly. |
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2012-11-08 03:02:32 -0600
| received badge | ● Editor
(source)
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2012-11-07 22:32:34 -0600
| commented answer | OpenCV2.4.3 build with the Intel IPP failed When using cmake-gui, I set NOT on this option:
BUILD_SHARED_LIBS
By disabling this option, the opencv lib built , but I have another problem of multiple definition. |
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2012-11-07 21:54:35 -0600
| asked a question | OpenCV 2.4.3 ffmpeg multiple definition [static build] I'm building OpenCV 2.4.3 on ubuntu 12.04, it stops here. Linking CXX executable ../../bin/opencv_perf_gpu
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::init()':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG4initEv+0x0): multiple definition of `CvCapture_FFMPEG::init()'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG4initEv+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::close()':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG5closeEv+0x0): multiple definition of `CvCapture_FFMPEG::close()'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG5closeEv+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::open(char const*)':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG4openEPKc+0x0): multiple definition of `CvCapture_FFMPEG::open(char const*)'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG4openEPKc+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::retrieveFrame(int, unsigned char**, int*, int*, int*, int*)':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG13retrieveFrameEiPPhPiS2_S2_S2_+0x0): multiple definition of `CvCapture_FFMPEG::retrieveFrame(int, unsigned char**, int*, int*, int*, int*)'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG13retrieveFrameEiPPhPiS2_S2_S2_+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::r2d(AVRational)':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG3r2dE10AVRational+0x0): multiple definition of `CvCapture_FFMPEG::r2d(AVRational)'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG3r2dE10AVRational+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::get_duration_sec()':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG16get_duration_secEv+0x0): multiple definition of `CvCapture_FFMPEG::get_duration_sec()'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG16get_duration_secEv+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::get_bitrate()':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG11get_bitrateEv+0x0): multiple definition of `CvCapture_FFMPEG::get_bitrate()'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG11get_bitrateEv+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::get_fps()':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG7get_fpsEv+0x0): multiple definition of `CvCapture_FFMPEG::get_fps()'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG7get_fpsEv+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::get_total_frames()':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG16get_total_framesEv+0x0): multiple definition of `CvCapture_FFMPEG::get_total_frames()'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG16get_total_framesEv+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::getProperty(int)':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG11getPropertyEi+0x0): multiple definition of `CvCapture_FFMPEG::getProperty(int)'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG11getPropertyEi+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::dts_to_sec(long long)':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG10dts_to_secEx+0x0): multiple definition of `CvCapture_FFMPEG::dts_to_sec(long long)'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG10dts_to_secEx+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::dts_to_frame_number(long long)':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG19dts_to_frame_numberEx+0x0): multiple definition of `CvCapture_FFMPEG::dts_to_frame_number(long long)'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG19dts_to_frame_numberEx+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG::grabFrame()':
ffmpeg_video_source.cpp:(.text._ZN16CvCapture_FFMPEG9grabFrameEv+0x0): multiple definition of `CvCapture_FFMPEG::grabFrame()'
../../lib/libopencv_highgui.a(cap_ffmpeg.cpp.o):cap_ffmpeg.cpp:(.text._ZN16CvCapture_FFMPEG9grabFrameEv+0x0): first defined here
../../lib/libopencv_gpu.a(ffmpeg_video_source.cpp.o): In function `CvCapture_FFMPEG ...
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2012-11-07 11:56:47 -0600
| asked a question | OpenCV2.4.3 build with the Intel IPP failed When I try to build OpenCV2.4.3 with the Intel IPP7.0.6.293_ia32, I failed. Linking CXX shared library ../../lib/libopencv_imgproc.so
/usr/bin/ld: /opt/intel/ipp/lib/ia32/libippcv_l.a(ippcv00242as.o): relocation R_386_GOTOFF against undefined symbol `ippJumpIndexForMergedLibs' can not be used when making a shared object
/usr/bin/ld: final link failed: Bad value
collect2: ld return 1
make[2]: * [lib/libopencv_imgproc.so.2.4.3] error 1
make[1]: [modules/imgproc/CMakeFiles/opencv_imgproc.dir/all] error 2
make: ** [all] errors 2 I need your help. |
