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• How to make Fringe Font by using ffmpeg using command line CLI in windows ?

  21 juin 2015, par Ehtesham Shami

  I have a code of ffmpeg of command line. First I have a input image of letter A and then I am using my sample code on that image and getting another output image with different style of letter A.

  I want to make a border on that output letter A.
  I can’t be attached the photos. I have pasted that code sample.

  Please tell me what is the modification is required in that code sample.

  Code Sample :

  ffmpeg -y -i back.jpg -filter_complex "drawtext=fontfile=/Windows/Fonts/meiryo.ttc:text=A:fontcolor=red:x=100:y=100:fontsize=200" output.jpg

• Using FFMPEG Video Compression in Windows Batch files [closed]

  21 juillet 2020, par TrainNutter

  I am having some trouble with using FFMPEG in a Windows (10) Batch file. What I am trying to do is to get a Batch file to compress all video files in a folder bu running 1 batch file execution (Per folder) so that I could say run it over night and have 1 folder with a load of video filed compressed down from say 500MB RAW to a much smaller size compressed.

  


  The code I have put together below.

  


  for %%i in (*.mp4) do ffmpeg -i "%%i" vcodec libx265 -crf 24 -o "%%~ni.mp4"


  


  However cmd says the following error : Unable to find output

  


  I don't understand as the -o "%%~ni.mp4" bit is clearly an output. Some helo would be greatly appreciated

  


• OpenCV VideoCapture not read any video File in Windows 7 32bit

  3 octobre 2014, par The_Maxtor

  i try to read .avi or .mpeg video file using VideoCapture class of OpenCV2.4.8 in C++ using QtCreator and CMake 2.8.12.1.
  Before built OpenCV, i download FFMPEG static version and put them into Program Files directory, i add their path into enviroments variable PATH, then i download K Lite Codec Pack Full, install it and only then i built OpenCV with CMAKE and mingw provide by Qt. After installation i add to PATH the right path of built OpenCV.
  The stream from webcam works fine, but the stream from a video file doesn’t work. I tried on Windows 7 32bit and Windows 8 64bit.
  Here is the code

  #include <opencv2></opencv2>imgproc/imgproc.hpp>
  
  #include <opencv2></opencv2>highgui/highgui.hpp>
  
  #include <opencv2></opencv2>core/core.hpp>
  
  #include "opencv2/opencv.hpp"
  
  cv::Mat img;
  
  cv::VideoCapture cap("Prova.avi");
  
  std::cerr &lt;&lt; cap.isOpened() &lt;&lt; std::endl;
  
  while(cap.read(img)){
  
      cv::imshow("Opencv", img);
  
      cv::waitKey(33);
  
  }

  The same code works on Ubuntu 12.04 with the same version of OpenCV and with the ffmpeg build by myself.
  What is wrong ?