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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

• Revision 836252bfa6 : Periodically update mode and mv costs Skip coefficient cost update in non-RD mo

  22 février 2014, par Jingning Han

  Changed Paths :
   Modify /vp9/encoder/vp9_rdopt.c

  
  
  Periodically update mode and mv costs

  Skip coefficient cost update in non-RD mode decision setting. Allow
  periodical mode and motion vector cost update. Currently every other
  8 frames. The increment runtime is a constant number. Hence more
  visible for CIF resolution, while negligible for 1080p.

  Speed -6 compression performance for rtc set is improved by 4.5%.

  Change-Id : I27e0ad7c521fcc2af1d825582cbdd1a27ac4c323

• Revision f0605f4b7e : Removed MV costing from ARNR filtering The ARNR filter uses a motion compensate

  27 avril 2012, par Adrian Grange

  Changed Paths : Modify /vp8/encoder/mcomp.c Modify /vp8/encoder/temporal_filter.c Removed MV costing from ARNR filtering The ARNR filter uses a motion compensated temporal filter, but the motion estimation implementation accounts for the cost of the mv in its decision making process. The ARNR (...)