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• configure : allow the gas-preprocessor to be called with an absolute path.

  16 avril 2013, par Lars Hammarstrand

  configure : allow the gas-preprocessor to be called with an absolute path.
  Allow the configure tool to call the gas-preprocessor with an absolute
  
  path when included with either the "—as" or with a separate "—gas"
  
  option.  The patch is backward compatible and will not break any current
  
  configuration setups.
  The new behavior that comes with this option can be utilized in the
  
  following ways :
  Examples :
   Just as single option that includes both the gas-preprocessor.pl and
  
    cc/as at the same time :
    $ configure —as="/opt/app/build-tools/gas-preprocessor.pl \
  
                     /Applications/Xcode.app/.../Developer/usr/bin/gcc"
   Call gas-preprocessor with a separate option in conjunction with —as :
    $ configure —gas="/opt/app/build-tools/gas-preprocessor.pl" \
  
                 —as="/Applications/Xcode.app/.../Developer/usr/bin/gcc"
   Address only the the gas-preprocessor and it will automatically fall
  
    back to as or cc whichever that’s defined :
  
    $ configure —gas="/opt/app/build-tools/gas-preprocessor.pl"
   Or if no gas-preprocessor.pl is explicitly defined, it falls back to
  
    the old behaivor.
  

  • [DH] configure

• aac : Split function to parse ADTS header data into public and private part

  26 avril 2017, par Diego Biurrun

  aac : Split function to parse ADTS header data into public and private part
  This makes the currently semi-public avpriv_aac_parse_header() function
  
  private to libavcodec and adds a proper public API function to return
  
  the parts of the ADTS header required in libavformat.
  

  • [DBH] configure
  • [DBH] doc/developer.texi
  • [DBH] libavcodec/Makefile
  • [DBH] libavcodec/aac_adtstoasc_bsf.c
  • [DBH] libavcodec/aac_parser.c
  • [DBH] libavcodec/aacdec.c
  • [DBH] libavcodec/adts_header.c
  • [DBH] libavcodec/adts_header.h
  • [DBH] libavcodec/adts_parser.c
  • [DBH] libavcodec/adts_parser.h
  • [DBH] libavformat/spdifdec.c
  • [DBH] libavformat/spdifenc.c

• ffmpeg4.4 missing in OpenCV3.4.13 + Android Studio4.2.1 ? No tutorial gives answer how to fix

  8 juin 2021, par Fab

  Finally opencv is working in my Android Studio project (solved with help of https://www.youtube.com/watch?v=-0Yx1UzozzQ). But theres is no Video I/O information visible so I guess i didnt connected ffmpeg correctly in my project and it isnt used at all !?

  


  My steps so far :

  


  


  • ffmpeg download : https://www.videohelp.com/software/ffmpeg

    


  


  • added ffmpeg to path like explained here :
https://soundartifacts.com/how-to/186-how-to-install-ffmpeg-on-windows-10-amp-add-ffmpeg-to-windows-path.html#video
powershell shows installation.

    


  


  • when printing Core.getBuildInformation() in the project I see that the Video I/O section is empty and I assume there has to be some information about FFMPEG etc...see picture :
enter image description here

    


  


  


  

  • I dont get any error messages. I try to VideoCapture.open("somestring") and returned is just false.

  


  


  I know there are a lot of similar questions but I cant identify which one really addresses my issue.
Really appreciate your help. Thanks, Fabian