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• Error in installing Open-CV with ffmpeg

  24 décembre 2013, par Matteo

  I am trying to install the library Open-CV working on on Ubuntu 11.04.

  I followed all instructions found in the InstallationGuide.

  However after installing with success I realized that I hadn't FFMPEG support because in my configuration file FFMPEG was disabled :

  Video I/O: 
  
  --     DC1394 1.x:                 NO 
  
  --     DC1394 2.x:                 YES 
  
  --     FFMPEG:                     NO 
  
  --       codec:                    YES 
  
  --       format:                   YES 
  
  --       util:                     YES 
  
  --       swscale:                  NO 
  
  --       gentoo-style:             YES 
  
  --     GStreamer:                  YES 
  
  --     UniCap:                     NO 
  
  --     PvAPI:                      NO 
  
  --     V4L/V4L2:                   Using libv4l 
  
  --     Xine:                       NO

  So I tried to rebuild everything after installing FFMEPG as decribed here.

  After configuring installation with the instruction

  cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_PYTHON_SUPPORT=ON ../OpenCV-2.3.1

  I ran the make command getting this error :

  make[2]: *** [bin/opencv_test_calib3d] Error 1
  
  make[1]: *** [modules/calib3d/CMakeFiles/opencv_test_calib3d.dir/all] Error 2
  
  make: *** [all] Error 2

  This is the point of compilation where the error is coming out :

  Linking CXX executable ../../bin/opencv_test_calib3d
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_analysis_headerout'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_set_out_samplerate'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_set_disable_reservoir'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_encode_buffer'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vaUnmapBuffer'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vaDestroyBuffer'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `th_comment_clear'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_param_default'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_param_apply_profile'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_set_brate'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_encoder_headers'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `faacEncGetCurrentConfiguration'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_analysis_blockout'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_info_clear'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_analysis_buffer'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `th_comment_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vaCreateBuffer'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_set_bWriteVbrTag'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `faacEncSetConfiguration'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `th_encode_ctl'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `D_IF_decode'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `faacEncGetDecoderSpecificInfo'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_block_clear'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_close'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_encoder_encode'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_set_VBR'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `Encoder_Interface_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_analysis'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_get_framesize'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `faacEncOpen'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `th_encode_packetout'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_set_quality'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `Decoder_Interface_exit'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `th_encode_alloc'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_encode_setup_vbr'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `th_info_clear'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_set_in_samplerate'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_encoder_reconfig'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_param_apply_fastfirstpass'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_set_VBR_quality'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_set_mode'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `D_IF_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_set_num_channels'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `faacEncEncode'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_encode_setup_managed'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `Encoder_Interface_exit'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `Decoder_Interface_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vaRenderPicture'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_encode_ctl'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `th_info_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_analysis_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_encoder_delayed_frames'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_param_parse'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `th_encode_free'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `D_IF_exit'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_dsp_clear'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `Decoder_Interface_Decode'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vaMapBuffer'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_block_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_bit_depth'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_picture_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_encoder_close'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_encoder_open_120'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `faacEncClose'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vaEndPicture'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_encode_flush'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_encode_buffer_interleaved'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_comment_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_comment_clear'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_init_params'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `x264_param_default_preset'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_encode_setup_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_bitrate_addblock'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_comment_add_tag'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `th_encode_flushheader'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `lame_encode_buffer_int'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `th_encode_ycbcr_in'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_bitrate_flushpacket'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_analysis_wrote'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vorbis_info_init'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `Encoder_Interface_Encode'
  
  ../../lib/libopencv_highgui.so.2.3.1: undefined reference to `vaBeginPicture'
  
  collect2: ld returned 1 exit status

  can anybody please tell me what's the problem with installation process I'm following ?

  Why is there this library referentiation error ?

• need to Setup ffmpeg in eclipse for windows

  16 décembre 2011, par user1101687

  i am getting this error !

  Building target: cyg.exe
  
  Invoking: Cygwin C Linker
  
  gcc -L"C:\cygwin\usr\libjjmpeg.so" -o "cyg.exe"  ./tut.o   -lavcodec
  
  /usr/lib/gcc/i686-pc-cygwin/4.5.3/../../../../i686-pc-cygwin/bin/ld: cannot find -lavcodec
  
  collect2: ld returned 1 exit status
  
  makefile:29: recipe for target `cyg.exe' failed
  
  make: *** [cyg.exe] Error 1

• FFMpeg doesn't convert the video, just creates a thumb... It was working now not ?

  20 septembre 2011, par Matt Reid

  Theres a site im making for someone where it uses FFMpeg to convert the files to MP4's... I set it up and got the converter working... but now a week or so later ive came to use it and it doesn't convert the video, it runs the create thumbnail exec() but the video exec() doesn't run. It returns a 1 status like its gone through but there is no converted file and the browser quickly processes the convert file rather than lagging for a few seconds like it did when it was working...

  Any ideas ?

   <?php
  
  
  
   //Thumbnail VARS
  
   $tn_size = '480x360';
  
   $tn_interval = 3;
  
   $tn_type = 'mjpeg';
  
  
  
   //Video VARS
  
   $vi_size = '480x360';
  
   $vi_fileto = 'mp4';
  
  
  
   //Default Setup
  
   $id = $_GET['ListingID'];
  
   $ext = $_GET['Ext'];
  
   $temp_url = '/var/www/files/videos-tmp/'.$id.".".$ext;
  
   $new_url = '/var/www/files/videos/'.$id.".mp4";
  
   $new_url_thumb = '/var/www/files/videos-thumb/'.$id.".jpg";
  
  
  
   //echo $new_url."<br />".$id." ".$ext. " " .$temp_url;
  
  
  
   //Do
  
   if(file_exists($temp_url)) {
  
  @unlink($new_url);
  
  //echo "/usr/local/bin/ffmpeg -i {$temp_url} -f {$vi_fileto} -r 25 -ar 22050 -ab 48000      -ac 1 -s {$vi_size} {$new_url}";
  
  exec("/usr/local/bin/ffmpeg -i {$temp_url} -deinterlace -an -ss $tn_interval -f {$tn_type} -t 1 -r 1 -y -s $tn_size &#39;{$new_url_thumb}&#39;"); //make thumbnai
  
  exec("/usr/local/bin/ffmpeg -i {$temp_url} -f {$vi_fileto} -r 25 -ar 22050 -ab 48000 -ac 1 -s {$vi_size} {$new_url}",$output,$status); //convert video
  
  
  
  //@unlink($temp_url);
  
  if(isset($_GET[&#39;UsrOvr&#39;])) { } else {
  
  echo "<b>Convert Complete</b>";
  
  echo "<br /><br />Return to listings <a href="http://stackoverflow.com/feeds/tag/&#39;admin_listings.php&#39;">page</a>.";
  
  exit;
  
  }
  
   } else {
  
  die("The video selected does not exist!");
  
   }
  
   ?>