1#This work is licensed under the 2#Creative Commons Attribution-Share Alike 3.0 United States License. 3#To view a copy of this license, visit 4#http://creativecommons.org/licenses/by-sa/3.0/us/ or send a letter to 5#Creative Commons, 6#171 Second Street, Suite 300, 7#San Francisco, California, 94105, USA. 8 9INPUT "encoded channels as 4 bit value"; 10OUTPUT "channel count and channel assignment"; 11VAR encoded_channels "encoded channels"; 12VAR ch0 "front center"; 13VAR ch1 "front left, front right"; 14VAR ch2 "front left, front right, front center"; 15VAR ch3 "front left, right right, back left, back right"; 16VAR ch4 "front left, front right, front center, back/surround left, back/surround right"; 17VAR ch5 "front left, front right, front center, LFE, back/surround left, back/surround right"; 18VAR ch6 "undefined"; 19VAR ch7 "undefined"; 20VAR ch8 "front left, difference"; 21VAR ch9 "difference, front right"; 22VAR ch10 "average, difference"; 23FUNC reserved "reserved channel assignment"; 24switch encoded_channels { 25 case 0 {return 1,ch0;} 26 case 1 {return 2,ch1;} 27 case 2 {return 3,ch2;} 28 case 3 {return 4,ch3;} 29 case 4 {return 5,ch4;} 30 case 5 {return 6,ch5;} 31 case 6 {return 7,ch6;} 32 case 7 {return 8,ch7;} 33 case 8 {return 2,ch8;} 34 case 9 {return 2,ch9;} 35 case 10 {return 2,ch10;} 36 case 11 {reserved();} 37 case 12 {reserved();} 38 case 13 {reserved();} 39 case 14 {reserved();} 40 case 15 {reserved();} 41}