title: c/c++ program for ffmpeg command line
body: <p>I want to find the corresponding c/c++ program for the ffmpeg command line:</p>
  
  <pre><code>ffmpeg -i sample.mp4 -an -vcodec libx264 -crf 23 outfile.h264
  </code></pre>
  
  <p>which convert a sample.mp4 file to outfile.h264, and </p>
  
  <pre><code>ffplay outfile.h264
  </code></pre>
  
  <p>What I am doing is to combine the ffmpeg program with my udp socket program to do a real-time video transmission. beacause it is 'real-time', so I want to find the ffmpeg program cut it at the frame encoding step instead of writing the frames into output file, and send frame by frame and also read frame by frame at the server side.</p>
  
  <p>My questions are:</p>
  
  <p>1.What c/c++ program is actually running when I use the above command line?</p>
  
  <p>2.where can i find the c/c++ program?</p>