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• ffmpeg encoded video don't work on mplayer

  15 septembre 2022, par Turgut

  I've made a C/C++ program that encodes a video. It takes several input videos with presumably different fpses, then encodes them as a single video with a different single fps. For example you can give 2 videos with fpses 30 and 60 respectively then set output fps to 120. This works fine under normal circumstances.

  


  However when ran through mplayer on a different pc then mine, it says the following :

  


  

  

As seen here it says that audio is at 30 while video is at 15. Normally I would just shrug this off however it works on any other video player on the same computer. So I would assume that mplayer is at fault and shrug it off, but it works on my computer's mplayer.


  


  Is this about my video encoding ? Do I need to change the header of the video ? Here is how I set the time :

  


  AVStream* st;&#xA;st->time_base =  av_d2q(1 / fps, std::numeric_limits<int>::max());&#xA;&#xA;</int>

  


  What could be the problem ?

  


• Revision 60ee54352e : fix build errors in vs2012 Macro expansion in VS2012 does not work with existin

  6 août 2014, par Yaowu Xu

  Changed Paths :
   Modify /test/dct32x32_test.cc

  
   Modify /test/fdct4x4_test.cc

  
   Modify /test/fdct8x8_test.cc

  
   Modify /test/lpf_8_test.cc

  
   Modify /test/vp9_intrapred_test.cc

  
  
  fix build errors in vs2012

  Macro expansion in VS2012 does not work with existing code, change in
  this commit help VS2012 to properly expand the macros and avoid build
  errors for test_libvpx project.

  Change-Id : I642921462ee4869ea07f90795d7de0f6eaf7655b

• I need the script to work on all dav files

  4 décembre 2019, par audicom

  Script should run in recursive mode, find DAV files and start DAV to JPG conversions using FFMPEG. The script is working, identifying files in folders and starting conversions when DAV files exist, but is ignoring some DAV files.
  When I put these DAV files back in the folder it converts correctly.
  What could be wrong ?
  I thought it might be the speed of the process, since the files are being generated in the folder, the script must wait for the file to be closed and complete to act. I tried to delay the conversion process by 15 seconds using a PING, but it still skips some files.

  cd E:\VM01\1002
  
  MD "E:\COLETA SNAPSHOT\SNAPSHOT 1002"
  
  MD  "E:\COLETA SNAPSHOT\PROCESSED 1002" 
  
  
  
  :LOOP01  
  
  PING 1.1.1.1 -n 10 -w 6000 >NUL     
  
  For /R %%G in (*.Dav) do IF NOT EXIST "%%G" GOTO SKIP01
  
  
  
  :LOOP02
  
  PING 1.1.1.1 -n 10 -w 6000 >NUL    
  
  For /R %%G in (*.Dav) do IF EXIST "%%G" GOTO SKIP02
  
  REM ALL THIS WILL BE DONE IF THE DAV FILE EXISTS
  
  :
  
  :
  
  :SKIP01
  
  REM 6 SECONDS OF DELAY ...
  
  PING 1.1.1.1 -n 10 -w 6000 >NUL
  
  GOTO LOOP01
  
  :
  
  :
  
  :SKIP02
  
  REM START CONVERSION
  
  PING 1.1.1.1  -n 10 -w 15000 >NUL
  
  For /R %%G in (*.Dav) do IF EXIST "%%G" ffmpeg -i "%%G" -r 0.2 -bt 20M -s 480x300 "%%~nG"%%06d.jpg
  
  for /r %%G in (*.Dav) do Move "%%G" "E:\COLETA SNAPSHOT\PROCESSED 1002"
  
  Move "*.jpg" "E:\COLETA SNAPSHOT\SNAPSHOT 1002" 
  
  PING 1.1.1.1  -n 10 -w 3000 >NUL
  
  )
  
  GOTO LOOP01