# change RPI SOUND
# python 2
# kll engineering 12/2014 V0.3
# thanks to help from FORUM 
# http://www.raspberrypi.org/forums/viewtopic.php?f=32&t=92827

# best start from terminal with:
# python /home/pi/kll/python_audio/soundselect3.py
# so you see OS result info, what you not see in IDLE

import subprocess

int_loop = 1            # menu loop

def menu():
    print ('''select from
0: EXIT
1: HDMI
2: A-Output
3: Default
4: VOLUME ''')
    return(int(input("Enter choice : ")))
def volume():
    V = int(input("enter volume as 0 .. 100 : "))
    if ( V >= 0 ) and ( V <= 100 ):
        V = -10240 + V * 106
    else :
        V = -10240 + 5300 # 50%
    return(V)

# main
while int_loop == 1:
    menu_choice = menu()
    if menu_choice == 1:
        subprocess.call(['amixer','cset','numid=3','2'])
        print "HDMI"
    elif menu_choice == 2:
        subprocess.call(['amixer','cset','numid=3','1'])
        print "analog jack"
    elif menu_choice == 3:
        subprocess.call(['amixer','cset','numid=3','0'])
        print "default"
    elif menu_choice == 4:
        subprocess.call(['amixer','cset','numid=1','--',str(volume())])
        print "volume set, pls. check also from terminal: amixer ( or alsamixer) "
    elif menu_choice == 0:
        int_loop = 0
        print("Ciao man...")

    subprocess.call(['aplay','/home/pi/python_games/badswap.wav'])