mp4_amr_352_288_v118_15_a12.sdp
mp4_amr_352_288_v238_20_a12.sdp
mp4_amr_352_288_v338_30_a12.sdp
mp4_amr_vbr_352_288_v68_10_a12.sdp
mp4_amr_vbr_352_288_v198_15_a12.sdp
mp4_amr_vbr_352_288_v298_25_a12.sdp