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• VideoWriter can't generate .avi file in C [closed]

  7 décembre 2022, par JohnChin

  I encounter the problem as the title now. The purpose of my code is using lots of images to generate a video. Here is my code :

  


  Mat frame = imread(img_path[0], -1) ;

  


  int codec = VideoWriter::fourcc('M', 'J', 'P', 'G');
double fps = 30.0;
Size sizeFrame(frame.cols, frame.rows);

VideoWriter OutputVideo(output_video, codec, fps, sizeFrame, TRUE);

int i = 0;
while (i != flag_img) {
    frame = imread(img_path[i], -1);
    resize(frame, frame, Size(frame.cols, frame.rows));
    OutputVideo.write(frame);
    i++;
}
OutputVideo.release();
destroyAllWindows();


  


  PS : img_path is the directory of images (ex : ../database/RushPixar/random/001.png)

  


  After running, there's no .avi file in my folder. Then I see the terminal, it displays there are lots of .dll files I lost and some .dll files I unloaded.

  


  list of .dll files of loading failed :

  


  

  • opencv_videoio_ffmpeg460_64d.dll

  


  • opencv_videoio_gstreamer460_64d.dll

  


  • opencv_videoio_intel_mfx460_64d.dll

  


  • opencv_highgui_gtk460_64.dll

  


  • opencv_highgui_gtk3460_64.dll

  


  • opencv_highgui_gtk2460_64.dll

  


  


  list of .dll files of unloading :

  


  

  • opencv_videoio_msmf460_64d.dll

  


  • opencv_videoio_ffmpeg460_64.dll

  


  


  terminal after running code
Is there any solution for the problem I encoutering ?

  


  Finding the solution in internet, but no one had this problem before.

  


• Linphone Android Import and Build

  29 novembre 2013, par AppleDroid

  I am working on Linphone Library and using GITHUB repo and downloaded the zip file with Download Zip button.

  

  Now when i go through the README file i saw that i need to run ./prepare_sources.sh script then i ran it on terminal but it asks for file to patch as

  Now when i opened the folder inside submodules/externals/ffmpeg — It's completely empty
  and other folders are also empty.
  But on GitHub also i saw it with some kind of black folder which i can't select.
  I am stuck here ? should i do how can i get all these files into my directory so that i can make the build.

  One more thing Should i import this downloaded Zip into my eclipse it shows me these projects which one should i import (Should i import it after i download the Zip from Github or should i import it after running all the scripts to make the build on terminal and then import it in eclipse) ?

  Need Help .
  

  

• C script and ffmpeg can't find files

  14 décembre 2019, par Edoardo Colella

  I tryed to use ffmpeg concat with popen command in c but i get "No such file o directory". If i use linux terminal with the same command it works.

  ffmpeg -i "concat: audio/1.mp3|audio/2.mp3" -acodec copy output.mp3

  What could be the problem ?