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• runtime error when linking ffmpeg libraries in qt creator

  6 juillet 2012, par dxthegreat

  I'm quite new around here but i hear that if you want a question answered, stackoverflow is the place to ask it >.<. So i hope that my question isn't too trivial that everyone will get annoyed at my lack of research (I've tried googling for two days already D= no progress !)
  I've also asked this question in the Qt forums, but i figured i'd ask here too.

  so...

  For the last few days I’ve been fiddling around with opengl and the like, trying to write a video player.

  However, when i try to import the ffmpeg libraries (avcodec, avformat, avutils etc), an error occurs on runtime (the program compiles fine). When compiled and run in debug mode, the error message gives me only a memory address and error code 135 (DLL not found).

  This error occurs when i include a function from those libraries in my code (e.g. av_register_all()) and it occurs regardless of whether the function is actually called.

  So i’m thinking that I’m doing something wrong when linking these libraries.
  I’m currently using :
  Windows vista (32bit),
  Qt creator 2.4.1 based on Qt 4.7.4 (32bit),
  Zeranoe’s FFmpeg build git-3233ad4 (2012-06-30)

  My .pro file consists of :

  QT       += core gui opengl
  
  
  
  TARGET = test
  
  TEMPLATE = app
  
  
  
  
  
  SOURCES += main.cpp\
  
          mainwindow.cpp \
  
      glwidget.cpp
  
  
  
  HEADERS += mainwindow.h \
  
      glwidget.h \
  
  
  
  FORMS    += mainwindow.ui
  
  
  
  
  
  LIBS += -L"$$_PRO_FILE_PWD_/libraries/ffmpeg/libs/" -lavcodec -lavformat -lavutil
  
  INCLUDEPATH += libraries/ffmpeg/includes

  I’ve tried many variations to the LIBS += line and checked my filepath many times. However, the DLL not found error occurs in all of these variations =(.

  Is there something I’m forgetting when doing these includes ?

  Thanks in advance >.<,
  (young and naive) aspiring dev

• ffmpeg error convertimg mkv to mp4

  11 janvier 2018, par Blurry Script

  I do this :

   ffmpeg -i "film.mkv" -strict experimental film.mp4

  I get this :

  [matroska,webm @ 0x29fb0e0] Read error at pos. 93417 (0x16ce9)

  the file itself is playable and ok, but how can I fix this ? or at least see the reason why it is reporting this, any clues ?

• MAINTAINERS : Add Haihao Xiang for vaapi

  14 décembre 2021, par U. Artie Eoff

  MAINTAINERS : Add Haihao Xiang for vaapi
  Current listed maintainers for vaapi plugin are
  
  not reponsive and/or currently active in the
  
  ffmpeg community.  Thus, vaapi plugin patches
  
  (and qsv plugin) have generally gone ignored or
  
  lost in the ether for too long.
  Remove Gwenole Beauchesne from vaapi maintainer
  
  who has not been active since 2016.
  Current alternative maintainer for vaapi is Mark
  
  Thompson whom has not been active since
  
  March/April 2021.
  Therefore, add Haihao Xiang to vaapi maintainer
  
  who's primary role is FFmpeg development with a
  
  focus on the vaapi and qsv plugins.  Haihao has
  
  over a decade of media experience and many years
  
  of FFmpeg development experience, amongst other
  
  media frameworks.
  The additional patch for adding Haihao as qsv
  
  plugin maintainer has been submitted previously :
  https://patchwork.ffmpeg.org/project/ffmpeg/patch/20210608141134.27448-1-zhongli_dev@126.com/
  This will help FFmpeg to continue to be the leading
  
  multimedia framework by allowing these plugins to be
  
  actively improved, enhanced, and maintained for existing
  
  and future HW platforms.
  Signed-off-by : U. Artie Eoff <ullysses.a.eoff@intel.com>
  

  • [DH] MAINTAINERS