Muxer image2 [image2 sequence]:
    Common extensions: bmp,dpx,jls,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png,ppm,sgi,tga,tif,tiff,jp2,j2c,j2k,xwd,sun,ras,rs,im1,im8,im24,sunras,xbm,xface,pix,y.
    Default video codec: mjpeg.
image2 muxer AVOptions:
  -update            <boolean>    E........ continuously overwrite one file (default false)
  -start_number      <int>        E........ set first number in the sequence (from 0 to INT_MAX) (default 1)
  -strftime          <boolean>    E........ use strftime for filename (default false)
  -frame_pts         <boolean>    E........ use current frame pts for filename (default false)
  -atomic_writing    <boolean>    E........ write files atomically (using temporary files and renames) (default false)


