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• ffmpeg watermark from java Runtime.exec cannot find output

  10 décembre 2013, par Rohi

  I'm having a problem in sending a ffmpeg command to add a watermark to my video from Java using Runtime.exec().
  The strange thing is that the same command is working perfectly from terminal....
  Any idea what the issue could be ?
  this is the command

  ffmpeg -i /home/mydir/inputvideo.mp4 -vf "movie=/home/mydir/watermarklogo.png [wm]; [in][wm] overlay=10:10 [out]" /home/mydir/outputvideo.mp4

  and this is the Java code (same as above, just wrapped in the exec code, and escaped characters

  Runtime rt = Runtime.getRuntime();
  
          Process proc = rt.exec("ffmpeg -i /home/mydir/inputvideo.mp4 -vf \"movie=/home/mydir/watermarklogo.png [wm]; [in][wm] overlay=10:10 [out]\" /home/mydir/outputvideo.mp4");
  
          InputStream stderr = proc.getErrorStream();
  
          InputStreamReader isr = new InputStreamReader(stderr);
  
          BufferedReader br = new BufferedReader(isr);
  
          String line = null;
  
          while ( (line = br.readLine()) != null)
  
              System.out.println(line);
  
          int exitVal = proc.waitFor();
  
          System.out.println("Process exitValue: " + exitVal);

  exit code is always 1 when running this.... this is the full output

      ffmpeg version 0.10.9-7:0.10.9-1~saucy1 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Oct 18 2013 17:40:10 with gcc 4.8.1
  
    configuration: --arch=amd64 --disable-stripping --enable-pthreads --enable-runtime-cpudetect --extra-version='7:0.10.9-1~saucy1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
  
    libavutil      51. 35.100 / 51. 35.100
  
    libavcodec     53. 61.100 / 53. 61.100
  
    libavformat    53. 32.100 / 53. 32.100
  
    libavdevice    53.  4.100 / 53.  4.100
  
    libavfilter     2. 61.100 /  2. 61.100
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0.  6.100 /  0.  6.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/rohif/oshi.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf54.59.106
  
    Duration: 00:00:48.13, start: 0.000000, bitrate: 2482 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2362 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 117 kb/s
  
      Metadata:
  
        handler_name    : 
  
  [NULL @ 0x18fb9a0] Unable to find a suitable output format for '[wm];'
  
  [wm];: Invalid argument
  
  Process exitValue: 1

• Evolution #3926 : Remplacement de safehtml par le plug htmlpurifier ou autre

  17 août 2018, par Guillaume Fahrner

  Content de voir que ce patch règle également des problèmes de mise en forme (je n’observe pas ce pb @home), je m’explique :

  Dans mon post précédent, dans le contenu du fichier plugins-dist/textwheel/wheels/spip/echappe-js.yaml donné entre les balises

  < pre>< code class="yaml">< / code>< / pre>

  certains caractères "<" et ">" ont été encodé (mais pas d’autres (!) ) alors qu’à l’origine cette partie de mon post n’en contient aucun.

  NB : essayez de mettre en forme avec

   la simple ligne de HTML donné dans ce post est ici impossible (les < > sont encodé alors que dans un < code >), une nouvelle fois je n'ai pas ce pb @home

• how to resolve Linking error undefined reference to symbol 'avcodec_open2@@LIBAVCODEC_54

  20 septembre 2016, par TobSta

  I’m getting the following linking error

  Linking CXX executable test_decode
  
  /usr/bin/ld: /home/t/NetBeansProjects/FaceCept3D/WrapFFMPEG/libWrapFFMPEG.a(DecodeFFMPEG.cpp.o): undefined reference to symbol 'avcodec_open2@@LIBAVCODEC_54'
  
  //usr/lib/x86_64-linux-gnu/libavcodec.so.54: error adding symbols: DSO missing from command line
  
  collect2: error: ld returned 1 exit status
  
  make[2]: *** [test_decode] Error 1
  
  make[1]: *** [CMakeFiles/test_decode.dir/all] Error 2
  
  make: *** [all] Error 2

  cmake . && make works for WrapFFMPEG, but for test_decode, i get the linking error when building

  My CMakeLists.txt for test_decode :

  cmake_minimum_required (VERSION 2.8)
  
  #cmake_policy(SET CMP0003 OLD)
  
  
  
  # Add executable
  
  add_executable(test_decode test_decode.cpp)
  
  
  
  find_package(OpenCV REQUIRED )
  
  message(STATUS ${OPENCV_INCLUDE_DIRS})
  
  include_directories (${OPENCV_INCLUDE_DIRS},      "/home/t/NetBeansProjects/FaceCept3D/WrapFFMPEG")
  
  find_library (WrapFFMPEG WrapFFMPEG "/home/t/NetBeansProjects/FaceCept3D/WrapFFMPEG")
  
  
  
  
  
  message(STATUS ${WrapFFMPEG})
  
  link_directories( ${WrapFFMPEG} )
  
  
  
  
  
  # Link to the WrapFFMPEG library
  
  target_link_libraries(test_decode LINK_PUBLIC ${OpenCV_LIBRARIES} ${WrapFFMPEG})
  
  
  
  add_custom_command(TARGET test_decode POST_BUILD COMMAND xcopy /i /y \"${FFmpeg_RUNTIME_LIBS}\" \"${CMAKE_CURRENT_BINARY_DIR}\")

  and my CMakeLists.txt for WrapFFMPEG :

  cmake_minimum_required (VERSION 2.8)
  
  file(GLOB sources *.cpp *.h)
  
  
  
  list(APPEND CMAKE_MODULE_PATH "/home/t/NetBeansProjects/FaceCept3D/WrapFFMPEG")
  
  
  
  find_package( avformat REQUIRED)
  
  find_package( avcodec REQUIRED)
  
  find_package( avutil REQUIRED )
  
  find_package( swscale REQUIRED )
  
  
  
  include_directories(    
  
  ${AVFORMAT_INCLUDE_DIR}
  
  ${AVCODEC_INCLUDE_DIR}
  
  ${AVUTIL_INCLUDE_DIR}
  
  ${SWSCALE_INCLUDE_DIR}
  
  )
  
  
  
  
  
  set( 
  
  FFMPEG_LIBRARIES    
  
  ${AVFORMAT_LIBRARY}
  
  ${AVCODEC_LIBRARY}
  
  ${AVUTIL_LIBRARY}
  
  ${SWSCALE_LIBRARY}
  
  )
  
  
  
  add_library(WrapFFMPEG ${sources})
  
  
  
  #add_library(WrapFFMPEG DecodeFFMPEG.cpp DecodeFFMPEG.h )
  
  set(FFMPEG_INCLUDE_DIR     "/home/t/NetBeansProjects/FaceCept3D/WrapFFMPEG/ffmpeg")
  
  find_library (FFMPEG FFMPEG "/home/t/NetBeansProjects/FaceCept3D/WrapFFMPEG/ffmpeg")
  
  message(STATUS ${FFMPEG_LIBRARIES})
  
  message(STATUS ${FFMPEG})
  
  include_directories($(FFMPEG_INCLUDE_DIR}))
  
  message(STATUS ${FFMPEG_INCLUDE_DIR})
  
  
  
  
  
  # Make sure the compiler can find include files for our WrapFFMPEG library
  
  # when other libraries or executables link to WrapFFMPEG
  
  target_include_directories (WrapFFMPEG PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
  
  target_link_libraries(WrapFFMPEG avutil avcodec avformat swscale)

  resulting in link.txt :

  /usr/bin/ar cq libWrapFFMPEG.a CMakeFiles/WrapFFMPEG.dir/DecodeFFMPEG.cpp.o CMakeFiles/WrapFFMPEG.dir/Tutorial.cpp.o /usr/bin/ranlib libWrapFFMPEG.a

  did CMake not find ffmpeg ?