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• using FFmpeg converter from .mov format from portrait to landscape mode

  30 juin 2014, par Sohail Yasmin

  I have a critical problem. I am sharing the details with you.

  Problem : - I have a video file in .mov format, taken from the IPhone. This video is in portrait mode, I want to play this video on the webpage in landscape mode and vice versa.

  Please suggest me, should I convert my video from portrait to landscape mode using FFMPEG. Does FFMPEG provide this conversion feature ? If yes, Please send the exe and the command line for converting portrait video into landscape mode and vice versa.
  i am using these commands

  ffmpeg -i "Inputname.mov" -acodec libvorbis -ac 2 -ab 96k -ar 44100 -b 345k output.webm
  
  ffmpeg -i "Inputname.mov" -b 1500k -vcodec libx264 -vpre slow -vpre baseline -g 30 output.mp4
  
  
  
  ffmpeg -i "Inputname.mov" -b 1500k -vcodec libtheora -acodec libvorbis -ab 160000 -g 30 output.ogv

  any one can help to solve this issue

• cmdutils : Only do the windows-specific commandline parsing on _WIN32

  7 août 2013, par Diogo Franco

  cmdutils : Only do the windows-specific commandline parsing on _WIN32
  Fixes commandline parsing on Cygwin (on 64 bit, and on very recent
  
  32 bit), where the configure check does find the CommandLineToArgvW
  
  function (since it exists in the link libraries and in the headers),
  
  but whose GetCommandLineW() only returns the application’s path.
  
  (This is due to a cygwin internal optimization, see
  
  http://cygwin.com/ml/cygwin/2013-07/msg00538.html for details.)
  
  Arguments are only given through main’s argc/argv, and they’re already
  
  UTF-8.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] cmdutils.c

• FFmpeg Error Checking : Broken or missing AVI Index

  17 avril 2017, par Jake

  I have three example videos, good.avi, damaged1.avi, and damaged2.avi. The first will play in VLC, but the second two both error with the same "Broken or missing AVI Index" message.

  I have thousands of these videos which I need to process in MATLAB, so I’m trying to error check using FFmpeg like this : ffmpeg -v error -i vidname.avi -f null - 2>&1

  Now here’s the part I don’t understand :
  On good.avi it completes with no output -OK
  On damaged1.avi it outputs [mjpeg @ 0x7fc1dd813800] overread 1 -OK
  On damaged2.avi it completed with no output as in good.avi - ?????

  Would someone with video codec/FFmpeg experience please help me understand what’s going on here so I can develop a more robust error check ?

  They also both have identical codec details in VLC :