Output #0, mp4, to '(null)':
    Stream #0:0, 0, 1/90000: Video: h264, yuv420p, 320x240, 1001/30000, q=10-51, 250 kb/s, 90k tbn, 29.97 tbc
    Stream #0:1, 0, 1/90000: Audio: aac, 48000 Hz, 2 channels, s16, 256 kb/s