INPUT
Duration: 00:01:25.53, start: 0.000000, bitrate: 307 kb/s
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D),
yuv420p, 640x480 [SAR 1:1 DAR 4:3], 261 kb/s, 10 fps, 10 tbr, 3k tbn, 25 tbc
OUTPUT
   encoder         : Lavf53.20.0
    Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:
1 DAR 4:3], q=-1--1, 10 tbn, 10 tbc