1#tb 0: 1/44100
2#media_type 0: audio
3#codec_id 0: ac3
4#sample_rate 0: 44100
5#channel_layout 0: 4
6#channel_layout_name 0: mono
70, -256, -256, 1536, 416, 0x3001fb2d
80, 1280, 1280, 1536, 418, 0xba72fc16
90, 2816, 2816, 1536, 418, 0xba72fc16
100, 4352, 4352, 1536, 418, 0xba72fc16
11