code: def genH264(infile, outfile, T):
      
      x264opts="-x264opts keyint=10:min-keyint=10:bframes=0"
      h264_dummystream_flavor="-pix_fmt yuv420p -vprofile main" 
  
      opts="-vcodec h264 "+h264_dummystream_flavor+" "+x264opts+" -fflags +genpts -r 25 -t "+str(T)
      com="ffmpeg -y -loop 1 -fflags +genpts -r 25 -i "+infile+" "+opts+" "+outfile
      print(com)
      os.system(com)
docs: Generate H264 stream
      
      Input image, output video file, time in seconds
      
      Example:
      
      ::
      
          genH264("/home/sampsa/python3/tests/lprtest/RealImages/IMG_20170308_093511.jpg","testi.mkv", 10)