1#tb 0: 1/8000 2#media_type 0: audio 3#codec_id 0: pcm_s16le 4#sample_rate 0: 8000 5#channel_layout 0: 4 6#channel_layout_name 0: mono 70, 0, 0, 240, 480, 0x7f6f3970 80, 240, 240, 240, 480, 0x1105a0d3 9